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CN101199191A - System for connecting cordless telephones to door telephones - Google Patents

System for connecting cordless telephones to door telephones Download PDF

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Publication number
CN101199191A
CN101199191A CN 200680021595 CN200680021595A CN101199191A CN 101199191 A CN101199191 A CN 101199191A CN 200680021595 CN200680021595 CN 200680021595 CN 200680021595 A CN200680021595 A CN 200680021595A CN 101199191 A CN101199191 A CN 101199191A
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CN
China
Prior art keywords
time slot
remote unit
cordless telephone
unit
telephone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 200680021595
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Chinese (zh)
Inventor
杉谷俊幸
中川克己
佐藤悦子
伊藤贵绍
福田真二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN101199191A publication Critical patent/CN101199191A/en
Pending legal-status Critical Current

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  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

A wireless communication apparatus includes wireless communicating unit that carries out a wireless communication with a telephone base unit to be connected to a communication line and carries out the wireless communication with a telephone remote unit that performs the wireless communication with the telephone base unit, communicating unit connected to a communication remote unit, and control unit that communicates with the telephone base unit and the telephone remote unit by using a communication frame including a first slot pair having a descending slot to be used for receiving a signal from the telephone base unit which is disposed earlier on a time basis and an ascending slot to be used for transmitting a signal to the telephone base unit which is disposed later on the time basis, and a second slot pair having a descending slot to be used for transmitting data to the telephone remote unit which is disposed earlier on the time basis and an ascending slot to be used for receiving data from the telephone remote unit which is disposed later on the time basis.

Description

Be used for cordless telephone is connected to the system of call gate
Technical field
The present invention relates to radio communication device and communication means thereof that main website and slave station communicate in the time division multiplexing mode.
Background technology
In recent years, wireless technology has obtained remarkable development, and, reduced size, weight and the price of radio communication device.And, in the communicator that in average family, uses, use the radio communication device of radio communication to obtain popularizing widely.
For example, a kind of typical radio communication device that uses on the throne is a cordless telephone.This cordless telephone is made of the base unit that is connected to common line and at least one remote unit, and base unit and remote unit are connected to each other by radio communication, and, the user can freely carry this remote unit, and this has higher convenience.
On the other hand, intercom system (intercom) is popularized widely, wherein, when the call button of the outdoor location that is arranged in the porch is pressed, produce sound by the indoor base unit that in the room, provides, and, conversation might be carried out with outdoor location, that is, converse with the visitor by the response button of pressing indoor base unit.
For example, when as shown in figure 23, when cordless telephone base unit 20a in cordless telephone 20 and a plurality of cordless telephone remote unit 20b are set to be set to main website and slave station respectively, a cordless telephone remote unit 20b is disposed in the children room of the second layer, and a cordless telephone remote unit 20b is disposed in the bedroom, like this, if when cordless telephone base unit 20a is disposed in living room on the ground floor, needn't arrives cordless telephone base unit 20a place and answer each incoming call.Therefore, this very convenient (in Figure 21, only showing a cordless telephone remote unit 20b).
In average family, arranged the intercom system 21 that has camera in some cases.For the intercom system 21 that has camera, the outdoor location 21a that comprises camera, microphone, loud speaker and be used for the jingle bell button of jingle bell is provided in door pillar, and the indoor set 21b that comprises monitor, microphone, loud speaker and be used for being provided with the response button of talking state is provided in the living room.
When the visitor presses when pressing bell button aloud,, can identify visiting person like this by the indoor set 21b the tinkle of bells that sounds.Yet,, must arrive in the living room that indoor set 21b has been installed in order to respond.
If exist when the jingle bell button is pressed, at such outdoor location of also giving notice by wireless mode away from the position of indoor set 21b, so,, needn't arrive the living room specially as cordless telephone 20, this should be very convenient.In other words, be set to main website and slave station so that communicate by indoor set 21b and outdoor location respectively, can certain away from the position send visitor 13 notice or with visitor's 13 talks.
Yet only can be used for the remote unit of cordless telephone remote unit 20b and the number of outdoor location has increased.There is such problem in reason: seek the respective remote unit, or remote unit is lost in use for this reason.And, also exist cordless telephone 20 and intercom system to produce the possibility of disturbing.
If cordless telephone remote unit 20b can communicate by letter with indoor set 21b by wireless being common to cordless telephone base unit 20a, can prevent that then the number of remote unit from increasing.For this purpose, preferably, cordless telephone remote unit 20b should be provided with the wireless portion of sharing that corresponds respectively to cordless telephone pedestal 20a and indoor set 21b.Therefore, the weight of portable very important cordless telephone has increased, and, even be provided with shared wireless portion, can not prevent that still cordless telephone 20 and cordless internal communication system from producing interference.
Such radio telephone base unit in the known wireless communication system, wherein main website and slave station communicate with one another (for example, referring to patent documentation 1).The radio telephone base unit is used for extracting the timing of the time slot of cellular station (cellularstation), and in the sending time slots of radio communication device base unit, communicate by letter with the radio telephone remote unit, wherein the sending time slots of radio communication device base unit is not with overlapping based on the sending time slots of cellular station regularly.Be set to cordless telephone base unit 20a and indoor set 21b by using this technology cellular station and radio communication device base unit, might prevent the interference of cordless telephone base unit 20a and indoor set 21b, and make cordless telephone remote unit 21b by extracting the timing and the executive communication of another time slot, and utilize a wireless portion and communicate, so that prevent that based on this timing corresponding sending time slots from overlapping each other.
In addition, patent documentation 2 described be used for by wireless mode connect cordless telephone with intercom system so that increase the technology of convenience of the installation that is connected of this cordless telephone and intercom system.
And, another cordless internal communication system is in the mode of the combination of intercom system and cordless telephone, be made up of cordless telephone and intercom system, wherein, this intercom system is provided with call button and wireless transmission/receiving unit, and, this cordless telephone is provided with the wireless transmission/receiving unit (for example, referring to patent documentation 2) of can be based on the reception of the call signal that sends from this intercom system with the form of electric wave signal and conversing with this intercom system.Cordless internal communication system communication system internally receives the call signal of electric wave signal form, and can carry out conversation between intercom system and cordless telephone base unit and remote unit.More specifically, when pressing the call button of intercom system, give notice to the cordless telephone base unit by radio communication, and, call out as intercom system, be issued through cordless telephone base unit and remote unit from the calling of intercom system.When sending response through cordless telephone base unit and remote unit, foundation is used to send the voice signal relevant with intercom system and the Radio Link of the picture signal of being taken by outdoor location, thereby can reply calling from intercom system one side through cordless telephone base unit and remote unit.
[patent documentation 1] JP-A-7-87556 is open
[patent documentation 2] JP-A-11-136373 is open
Yet, in having the radio telephone base unit of traditional structure, only do not overlap each other and carry out transmission with the synchronous mode of the transmit timing of cellular station with each transmit timing.Therefore, the cordless telephone remote unit can receive each transmission.Yet, be not disclosed in the technology of carrying out another reception in the execution of cordless telephone remote unit and the state that cellular station or cordless telephone base unit are communicated by letter.Have such problem: even carried out described two receptions at waiting time, but in some cases, after being transformed into communications status, depend on the wireless channel of communicating by letter, another control wireless channel can not be received.
And, the radio telephone base unit with traditional structure with cellular station in the regularly different frame of frame regularly carry out and the communicating by letter of remote unit.Thus, there is such problem: produced skew between the receiving slot of the sending time slots of radio telephone base unit and radio telephone remote unit, and, the radio telephone remote unit make frame regularly with situation that cellular station conforms under, between cordless telephone base unit and cordless telephone remote unit, produced the time slot that can not be used.
And, technology at the radio telephone base unit with traditional structure is applied under the situation of cordless telephone 20 and intercom system 21, cordless telephone base unit and indoor set are operated as main website respectively, and send the control data that is used for synchronous foundation at particular time-slot.And, when not carrying out, send two control datas with the communicating by letter of cordless telephone remote unit 20b.There is the possibility of disturbing other radio communication device (for example, such as carry out the WLAN of data communication and the radio communication device of other cordless telephone by wireless mode between personal computer) that is used to carry out radio communication in reason for this reason.
Summary of the invention
Therefore, the objective of the invention is, wireless communication system and communication means thereof with high convenience are provided, wherein, the executive communication reliably of main website and slave station, and can reduce interference to other radio communication device.
The invention provides a kind of radio communication device, it comprises: wireless communication unit, be used to carry out and be connected to the radio communication of the telephone pedestal unit of communication line, and carry out and be used to carry out radio communication with the telephone remote unit of the radio communication of this telephone pedestal unit; Communication component, it is connected to the communication remote unit; And control assembly, be used for comprising that by use first time slot is to the communication frame right with second time slot, and with telephone pedestal unit and telephone remote unit communication, wherein, first time slot is to having the time slot of early arranging that successively decreases that is used for from this telephone pedestal unit received signal on time reference line, and be used for to this telephone pedestal unit send signal on time reference line later layout increase progressively time slot, second time slot is to having the time slot of early arranging that successively decreases that is used for sending to this telephone remote unit data on time reference line, and be used for receiving from this telephone remote unit data on time reference line later layout increase progressively time slot.
Comprise that by use first time slot is to the communication frame right with second time slot, wherein, first time slot is to having the time slot of early arranging that successively decreases that is used for from this telephone pedestal unit received signal on time reference line, and be used for to this telephone pedestal unit send signal on time reference line later layout increase progressively time slot, second time slot is to having the time slot of early arranging that successively decreases that is used for sending to this telephone remote unit data on time reference line, and be used for receiving from this telephone remote unit data on time reference line later layout increase progressively time slot, thus, first time slot is to being used to and the communicating by letter of telephone pedestal unit, and second time slot is to being used to and the communicating by letter of telephone remote unit, and makes wireless communication unit only be set at and related slave station one side in telephone pedestal unit.Therefore, be shared as in the telephone remote unit under the situation of remote unit of telephone pedestal unit and wireless communication unit, might send data to this telephone remote unit from this remote unit of communicating by letter, and can not compete with the telephone pedestal unit.
A first aspect of the present invention is about a kind of radio communication device, and it comprises:
Wireless communication unit is used to carry out and be connected to the radio communication of the telephone pedestal unit of communication line, and carries out and be used to carry out radio communication with the telephone remote unit of the radio communication of this telephone pedestal unit;
Communication component, it is connected to the communication remote unit; And
Control assembly, be used for comprising that by use first time slot is to the communication frame right with second time slot, and with telephone pedestal unit and telephone remote unit communication, wherein, first time slot is to having the time slot of early arranging that successively decreases that is used for from this telephone pedestal unit received signal on time reference line, and be used for to this telephone pedestal unit send signal on time reference line later layout increase progressively time slot, second time slot is to having the time slot of early arranging that successively decreases that is used for sending to this telephone remote unit data on time reference line, and be used for receiving from this telephone remote unit data on time reference line later layout increase progressively time slot.
Comprise that by use first time slot is to the communication frame right with second time slot, wherein, first time slot is to having the time slot of early arranging that successively decreases that is used for from this telephone pedestal unit received signal on time reference line, and be used for to this telephone pedestal unit send signal on time reference line later layout increase progressively time slot, second time slot is to having the time slot of early arranging that successively decreases that is used for sending to this telephone remote unit data on time reference line, and be used for receiving from this telephone remote unit data on time reference line later layout increase progressively time slot, thus, first time slot is to being used to and the communicating by letter of telephone pedestal unit, and second time slot is to being used to and the communicating by letter of telephone remote unit, and, make wireless communication unit only be set at and related slave station one side in telephone pedestal unit.Therefore, be shared as in the telephone remote unit under the situation of remote unit of telephone pedestal unit and wireless communication unit, might send data to this telephone remote unit from this remote unit of communicating by letter, and can not compete with the telephone pedestal unit.
A second aspect of the present invention is characterised in that, control assembly is by the right time slot that successively decreases of first time slot, the transmission of communication frame is begun regularly synchronous with the synchronizing signal that receives from the telephone pedestal unit, executive communication thus.
Part is by the right time slot that successively decreases of first time slot, begin regularly the transmission of communication frame synchronous with the synchronizing signal that receives from the telephone pedestal unit, executive communication thus, therefore, the telephone remote unit can receive under the right time slot that successively decreases of first time slot right successively decrease time slot and second time slot state synchronized with each other.Like this, can simplify the receiving unit of telephone remote unit.
A third aspect of the present invention is characterised in that the communication remote unit is the intercom system remote unit with call button, and when pressing call button, this intercom system remote unit sends call signal to this communication component.
Therefore, the communication remote unit is the intercom system remote unit with call button, and when pressing call button, this intercom system remote unit sends call signal to this communication component.Therefore, when communication remote unit operation call button, call signal is communicated by letter with radio communication device.Like this, obviously, the call button of communication remote unit is operated by radio communication device.
A fourth aspect of the present invention is characterised in that: the communication remote unit is the intercom system remote unit with call button, when call button is pressed, the intercom system remote unit sends call signal to communication component, and control assembly is by right the successively decreasing time slot and send this call signal to the telephone remote unit of second time slot.
Therefore, the communication remote unit is the intercom system remote unit with call button, when call button is pressed, the intercom system remote unit sends call signal to communication component, and control assembly is by right the successively decreasing time slot and send this call signal to the telephone remote unit of second time slot.Therefore, when communication remote unit operation call button, can make call signal and telephone remote unit communication.Like this, obviously, the call button of communication remote unit is by the telephone remote unit operations.
A fifth aspect of the present invention is characterised in that: the communication remote unit is the remote unit with intercom system of call button, when call button is pressed, the remote unit of intercom system sends call signal to communication component, and this control assembly is by right the increasing progressively time slot and send this call signal to the telephone pedestal unit of first time slot.
Therefore, the communication remote unit is the remote unit with intercom system of call button, when call button is pressed, the remote unit of intercom system sends call signal to communication component, and this control assembly is by right the increasing progressively time slot and send this call signal to the telephone pedestal unit of first time slot.Therefore, when communication remote unit operation call button, can make call signal and telephone pedestal unit communication.Like this, obviously, the call button of communication remote unit is by the telephone remote unit operations.
A sixth aspect of the present invention is characterised in that: the conversation control assembly that is connected to the second communication circuit different with this communication line and is used for second communication circuit execution conversation is provided, and,
Control assembly uses the voice signal that receives from the conversation control assembly, so that send the right time slot that successively decreases of second time slot to the telephone remote unit.
Therefore, the conversation control assembly that is connected to the second communication circuit different with this communication line is provided, converses to carry out by the second communication circuit, and, control assembly uses the voice signal that receives from the conversation control assembly, so that send the right time slot that successively decreases of second time slot to the telephone remote unit.Like this, conversation can be carried out through the second communication circuit in the telephone remote unit.Therefore, conversation can be realized by using the second communication circuit except that this communication line in the telephone remote unit.
A seventh aspect of the present invention is characterised in that: when detecting from incoming call that the second communication circuit sends, the conversation control assembly sends incoming signal by the right time slot that successively decreases of second time slot.
Therefore, when detecting from incoming call that the second communication circuit sends, the conversation control assembly sends incoming signal by the right time slot that successively decreases of second time slot.Like this, the communication between telephone pedestal unit and telephone remote unit is not competed with the incoming call that sends from the second communication circuit.Therefore, the telephone remote unit can receive the incoming call from the second communication circuit, simultaneously by using this communication line executive communication.
A eighth aspect of the present invention is characterised in that: be directed to the reception of the synchronizing signal that is sent out by the right time slot that successively decreases of first time slot, control assembly uses the right time slot that successively decreases of second time slot, carries out the control that is used for reducing transmission frequency.
Therefore, be directed to the reception of the synchronizing signal that is sent out by the right time slot that successively decreases of first time slot, control assembly uses the right time slot that successively decreases of second time slot, carries out the control that is used for reducing transmission frequency.Like this, might keep obtaining synchronous state by the control data that transmits from the telephone pedestal unit, and when needs send (, when calling or incoming call are arranged) immediately at second time slot to the transmission signal that successively decreases.Therefore, might save wireless frequency and the resource that is used for call duration time.
A ninth aspect of the present invention is characterised in that: the telephone remote unit is a plurality of telephone remotes unit, and, the call signal that is sent out by the right time slot that successively decreases of second time slot comprises the information that is used to discern the telephone remote unit, and, when while during the called telephone remote unit, the information setting that control assembly will be used to discern the telephone remote unit is to have predetermined value.
Therefore, the telephone remote unit is a plurality of telephone remotes unit, and, the call signal that is sent out by the right time slot that successively decreases of second time slot comprises the information that is used to discern the telephone remote unit, and, when while during the called telephone remote unit, the information setting that control assembly will be used to discern the telephone remote unit is to have predetermined value.Like this, in the time of might working as the information that is used to discern that the telephone remote unit receives and have predetermined value, the telephone remote unit has been called out in decision.Therefore, can realize broadcasting to a plurality of telephone remotes unit.
A tenth aspect of the present invention is characterised in that: increase progressively the call signal that time slot be sent out right by first time slot comprises the information that is used to discern the telephone pedestal unit, and, when calling out this remote unit and this telephone pedestal unit simultaneously, the information setting that control assembly will be used to discern the telephone remote unit is to have predetermined value.
Therefore, increase progressively the call signal that time slot be sent out right by first time slot comprises the information that is used to discern the telephone pedestal unit, and when calling out this remote unit and this telephone pedestal unit simultaneously, the information setting that control assembly will be used to discern the telephone remote unit is to have predetermined value.Like this, might work as the information that is used to discern that received by the telephone remote unit and telephone pedestal unit when predetermined value is arranged, telephone remote unit and telephone pedestal unit have been called out in decision.Therefore, can realize broadcasting to remote unit and base unit.
A eleventh aspect of the present invention is characterised in that: the intercom system remote unit comprises the camera that is used for photographic images, this wireless remote unit comprises the display part, and, the call signal that is sent out by the right time slot that successively decreases of second time slot comprises by the captured image information of outdoor location, and the telephone remote unit shows this image.
Therefore, the intercom system remote unit comprises the camera that is used for photographic images, this wireless remote unit comprises the display part, and the call signal that is sent out by the right time slot that successively decreases of second time slot comprises by the captured image information of intercom system remote unit.Like this, the telephone remote unit can in addition, can show the image of outdoor location from telephone pedestal unit receiving calling signal on the display part.
A twelveth aspect of the present invention is characterised in that: the remote unit of intercom system comprises the camera that is used for photographic images, this cordless base unit comprises the display part, and, increase progressively the call signal that time slot be sent out right by first time slot comprises by the captured image information of the remote unit of intercom system, and the telephone pedestal unit shows this image.
Therefore, the remote unit of intercom system comprises the camera that is used for photographic images, this cordless base unit comprises the display part, and increase progressively the call signal that time slot be sent out right by first time slot comprises by the captured image information of the remote unit of intercom system.Like this, the telephone remote unit can be from telephone pedestal unit receiving calling signal, and in addition, can show the image of outdoor location on the display part.
Description of drawings
Fig. 1 illustrates the figure of the structure of wireless communication system according to an embodiment of the invention,
Fig. 2 is used to illustrate the figure of the structure of intercom system according to an embodiment of the invention,
Fig. 3 is used to illustrate the figure of the structure of the cordless telephone base unit of cordless telephone according to an embodiment of the invention,
Fig. 4 is used to illustrate the figure of the structure of the cordless telephone remote unit of cordless telephone according to an embodiment of the invention,
Fig. 5 (A) and 5 (B) are the figure that is used to illustrate the form of grouped data,
Fig. 6 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Fig. 7 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Fig. 8 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Fig. 9 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Figure 10 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Figure 11 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Figure 12 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Figure 13 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of wireless communication system and receiving slot,
Figure 14 is the view that the situation that wireless relay apparatus is provided according to an embodiment of the invention, in wireless communication system is shown,
Figure 15 be used for illustrating according to an embodiment of the invention, at the figure of the state of the executory sending time slots of the communication of the wireless communication system that comprises wireless relay apparatus and receiving slot,
Figure 16 is the figure that is illustrated in according to the hardware configuration of the indoor set in the wireless communication system of the embodiment of the invention,
Figure 17 is the figure that is illustrated in according to the hardware configuration of the cordless telephone remote unit in the wireless communication system of the embodiment of the invention,
Figure 18 is the view that is illustrated in according to the profile of the outdoor location in the wireless communication system of the embodiment of the invention,
Figure 19 is the view that is illustrated in according to the profile of the indoor set in the wireless communication system of the embodiment of the invention,
Figure 20 is the view that is illustrated in according to the profile of the outdoor location in the wireless communication system of the embodiment of the invention,
Figure 21 is the view that is illustrated in according to the profile of another cordless telephone remote unit in the wireless communication system of the embodiment of the invention,
Figure 22 is the view that is illustrated in according to the profile of the cordless telephone base unit in the wireless communication system of the embodiment of the invention, and
Figure 23 is the view that the structure that comprises cordless telephone and intercom system is shown.
Embodiment
With reference to Fig. 1 to 4 structure according to the wireless communication system of the embodiment of the invention is described.Fig. 1 illustrates the figure of the structure of wireless communication system according to an embodiment of the invention.Fig. 2 is used to illustrate the figure of the structure of intercom system according to an embodiment of the invention.Fig. 3 is used to illustrate the figure of the structure of the cordless telephone base unit of cordless telephone according to an embodiment of the invention.Fig. 4 is used to illustrate the figure of the structure of the cordless telephone remote unit of cordless telephone according to an embodiment of the invention.
As shown in Figure 1, wireless communication system 1 comprises intercom system 2 as time main website (sub mater station), is connected to telephone wire 5 and with the cordless telephone base unit 3 of the main website (main mater station) of deciding and as the cordless telephone remote unit 4 of slave station according to an embodiment of the invention.Intercom system 2 is made of outdoor location 2a and indoor set 2b.Though only show a cordless telephone remote unit 4 among Fig. 1, a plurality of cordless telephone remote units 4 also can be provided.In wireless communication system 1 according to this embodiment, the cordless telephone base unit 3 usefulness main website of deciding, indoor set 2b is as time main website, and cordless telephone remote unit 4 is as slave station, and, come executive communication by wireless time-division multiple access (TDMA).
As shown in Figure 2, intercom system 2 has outdoor location 2a and the indoor set 2b that connects by cable.Outdoor location 2a comprise the image that is used to take the visitor camera part 101, be used for the conversation part 102 of visitor's conversation, be used to detect visitor's calling and send the calling detection part 103 of call request and be used for the multichannel decomposition circuit 104 of call request that multiplexed or multichannel is decomposed view data, speech data and taken the visitor of its image to indoor set 2b, carry out thus and the communicating by letter of indoor set 2b.
Indoor set 2b comprises monitoring circuit 201, monitor 202, image information storage area 203, calling detection part 204, broadcast segment 205, sound circuit 206, conversation part 207, sync section 208, building block (framing block) 209, wireless portion 210, operation part 211, antenna 213, control section 214, telephone pedestal unit ID storage area 215, intercom system ID storage area 216, remote unit ID storage area 217 and multichannel decomposition circuit 220.
Monitoring circuit 201 is connected to multichannel decomposition circuit 220, and shows the view data that transmits from outdoor location 2a on monitor 202.
The view data that 203 storages of image information storage area transmit from outdoor location 2a through monitoring circuit 201, and to the same view data of control section 21 outputs.
Calling detection part 204 is connected to multichannel decomposition circuit 220, and detect call request from the calling detection part 103 among the outdoor location 2a, so that the bell of broadcast segment 205 (chime) rings, like this, to users broadcasting visitor's arrival, and give notice to control section 214.
Sound circuit 206 is connected to multichannel decomposition circuit 220, and has following function: the voice signal input from the microphone of conversation part 207 is converted to speech data and sends this speech data to outdoor location 2a; The speech data that receives through outdoor location 2a is converted to voice signal, and send the tinkle of bells through the loud speaker of conversation part 207 thus; And when communicating by letter, transmit speech data to outdoor location 2a with cordless telephone remote unit 4.
Sync section 208 is connected to building block 209 and control section 214, and the bit pattern on the head of the synchronous and grouping of execution preamble is synchronous.
Building block 209 is connected to sound circuit 206, wireless portion 210 and control section 214, and has according to synchronizing signal and extract control data field and information field and export them the function of control section 214 or sound circuit 206 to from demodulating data.
Wireless portion 210 is carried out modulation and demodulation so that communicate through time-division multiple access (TDMA), and via antenna 213 transmission/receptions they.
Operation part 211 comprises be used for the button that is pressed when conversing with the visitor.
Control section 214 is used for outdoor location 2a and indoor set 2b are carried out routine control.
ID storage area 215 records in telephone pedestal unit will become the ID as the identifying information of the cordless telephone base unit 3 of main website, intercom system ID storage area 216 record will become the ID as self device (self-apparatus) of time main website, and, remote unit ID storage area 217 be recorded in intercom system 2 that be recorded, to become ID as the identifying information of the wireless remote unit of slave station, and be connected, freely to carry out reading from control section 214.
Below, describe cordless telephone base unit 3 in detail with reference to Fig. 3.
As shown in Figure 3, cordless telephone base unit 3 comprises line interface part 301, sound circuit 302, incoming call test section 303, remote unit ID storage area 304, telephone pedestal unit ID storage area 305, intercom system ID storage area 310, building block 306, wireless portion 307, antenna 308, operation part 311, broadcast segment 312, conversation part 313, monitoring circuit 314, monitor 315 and control section 320.
Line interface part 301 is connected to telephone wire 5, and to incoming call test section 303 output signals, and to sound circuit 302 output signals.And, send analog voice signal to telephone wire 5 from sound circuit 302.
Sound circuit 302 is connected to building block 306 and conversation part 313, and a voice signal of importing via the microphone of conversation part 313 is converted to speech data, and to the identical speech data of building block 306 outputs, and, speech data from building block 306 inputs is converted to voice signal, and produces jingle bell via the loud speaker of conversation part 313.
Incoming call test section 303 is connected to line interface part 301 and control section 320, and detects incoming call by the voice signal that sends from telephone wire 5, and, give notice to control section 320.
Remote unit ID storage area 304 record will be as the ID as the cordless telephone remote unit 4 of communication party's slave station, the intercom system 2 that intercom system ID storage area 310 record will become time main website (wherein, this time main website is as will be as communication party's slave station) ID, and, the telephone pedestal unit ID storage area 305 records ID that self installs of the main website of deciding, and be connected freely to carry out reading from control section 320.
Building block 306 is connected to sound circuit 302, wireless portion 307 and control section 320, and has according to synchronizing signal and extract control data field and information field and to the function of control section 320 or the same field of sound circuit 302 outputs from demodulating data.
Wireless portion 307 is carried out modulation and demodulation, so that communicate by time-division multiple access (TDMA), and via antenna 308 transmission/reception data.
Operation part 311 comprises function key, as the numerical key that will use when input sends the destination telephone number, be used to carry out the key of on-hook/off-hook and the key that is used for heavily pulling out.
Broadcast segment 312 is connected with control section 320, and broadcasting from the incoming call of telephone wire 5 and by the notice of sending from control section 320 notice that the visitor is arranged sent of communication system 2 internally.
Monitoring circuit 314 is connected with control section 320, and shows the view data of communication system 2 transmissions internally on monitor 315.
Control section 320 is used for cordless telephone base unit 3 is carried out routine control.
Below, describe cordless telephone remote unit 4 in detail with reference to Fig. 4.As shown in Figure 4, cordless telephone remote unit 4 comprises broadcast segment 401, sound circuit 402, conversation part 403, monitoring circuit 404, sync section 405, building block 406, wireless portion 407, antenna 408, operation part 409, control section 410, remote unit ID storage area 411, telephone pedestal unit ID storage area 412, intercom system ID storage area 413 and monitor 414.
Broadcast segment 401 is connected with control section 410, and broadcasting from the incoming call of telephone wire 5 and by the notice of sending from control section 410 notice that the visitor is arranged sent of communication system 2 internally.
Sound circuit 402 is connected to building block 406 and conversation part 403, and the voice signal through the microphone input of conversation part 403 is converted to speech data, and to the same speech data of building block 406 outputs, and, speech data from control section 410 or building block 406 inputs is converted to voice signal, and produces jingle bell through the loud speaker of conversation part 403.
Monitoring circuit 404 is connected with control section 410, and shows the view data of communication system 2 transmissions internally on monitor 414.
Sync section 405 is connected to building block 406 and control section 410, and the bit pattern on the head of the synchronous and grouping of execution preamble is synchronous.
Building block 406 is connected to sound circuit 402, wireless portion 407 and control section 410, and has according to synchronizing signal and extract control data field and information field and to control section 320 or sound circuit 402 their functions of output from demodulating data.
Wireless portion 407 is carried out modulation and demodulation, so that by the time-division multiple access (TDMA) executive communication, and via antenna 408 transmission/reception data.
Operation part 409 comprises function key, as the numerical key that will use when input sends the destination telephone number, the key of carrying out on-hook/off-hook and the key that is used for heavily pulling out.
Control section 410 is used for cordless telephone remote unit 4 is carried out routine control.
Remote unit ID storage area 411 records will become the ID that self installs of slave station.ID storage area 412 records in telephone pedestal unit will become the ID of the cordless telephone base unit 3 of main website.Intercom system ID storage area 413 records will become the ID of the intercom system 2 of time main website.Remote unit ID storage area 411, telephone pedestal unit ID storage area 412 and intercom system ID storage area 413 are connected, freely to carry out reading from control section 410.
With reference to Fig. 5 (A) and 5 (B), with the form of describing when the grouped data that obtains during executive communication by time-division multiple access (TDMA) according to the indoor set 2b in the wireless communication system 1 of the embodiment of the invention, cordless telephone base unit 3 and cordless telephone remote unit 4 of constructing as mentioned above.Fig. 5 (A) and 5 (B) are the figure that is used to illustrate the form of grouped data.
Shown in Fig. 5 (A), packet comprises the grouping that will use and the grouping that will use when sending speech data and view data when sending control data.Any grouped data all has synchronizing signal and control data field and the field of the CRC of the check code of storage control data field (cyclic redundancy check (CRC), Cyclic Redundancy Check) 1 therein.
Synchronizing signal is made of preamble and synchronization bit pattern, and is used for realizing synchronously with communication sources.The control data field is storing message therein.
And speech data and view data all are stored in the information field, and the check code of information field is stored among the CRC2.
Shown in Fig. 5 (B), the control data field is made of head and afterbody, and message is stored in head.At afterbody, stored content to depend on the content of the message that is stored in head and change.For NT message, for example, stored the ID in the source that sends.In other words, NT message is used by cordless telephone base unit 3 and indoor set 2b.The inferior main website of the NT message that reception sends from main website and slave station can identify this main website and use this time slot.And the slave station that receives the NT message that sends from inferior main website can identify time main website and use this time slot.
And, realize that the ID of the cordless telephone remote unit 4 of calling is stored in the PT message.Sending from telephone wire 5 under the situation of incoming call, storage cordless telephone base unit 3 sends the ID of cordless telephone remote unit 4 of the notice of incoming call to it.Under the situation that the visitor arrives, storage is used for sending from indoor set 2b the ID of cordless telephone remote unit 4 of the notice of calling.And, to call out at the same time under the situation of all remote units, the storage indication is to the special ID (for example, ID is ALL0) of the whole calling in them.
When sending the notice of sending time slots, use QT message to the communication party.Receive to send inferior main website of QT message of autonomous main website and slave station and can identify any time slot in the frame that is used for transmitting control signal, and can with main website this frame and this time slot synchronously.
Cordless telephone base unit 3 and indoor set 2b use MT message, and cordless telephone remote unit 4 uses MT message.When send incoming call from telephone wire 5 and from cordless telephone base unit 3 when cordless telephone remote unit 4 sends the PT message, the call request that sends based on MT message from the cordless telephone remote unit 4 that off-hook takes place, and the close-talking response that sends based on MT message from cordless telephone base unit 3 responds as confirming.When send incoming call from outdoor location 2a and from indoor set 2b when cordless telephone remote unit 4 sends the PT message, similarly, the call request that sends based on MT message from the cordless telephone remote unit 4 that off-hook takes place, and the close-talking response that sends based on MT message from indoor set 2b responds as confirming.
Below, referring to figs. 1 through 4, the operation that will carry out is described when indoor set 2b, cordless telephone base unit 3 and cordless telephone remote unit 4 utilize grouped data to communicate.
In the following description, to send with the cordless telephone base unit 3 of the main website of deciding as control data, to become the time-division for a long time the time slot of the control signal of the benchmark of (time division multiple time) be called as main synchronization slot, be called as subsynchronous time slot and send as time slot control data, that will become the control signal of time-division benchmark for a long time as the indoor set 2b of time main website.In addition, in this embodiment, the example that explanation is such, when sending the time slot of wireless signal when wherein, being used for being used as main website and when the operation main website and being used for being used as slave station in inferior main website in inferior main website and the time slot that when the operation slave station, sends wireless signal when their carry out time division multiplexing, be separated from each other.When being used for being used as main website in inferior main website and the time slot that when the operation main website, sends wireless signal will be called as main website sending time slots or slave station receiving slot, and when being used for being used as slave station in inferior main website and the time slot that when the operation slave station, sends wireless signal will be called as slave station sending time slots or main website receiving slot.Particularly, under main website waits for the state of the communication request send from this slave station, carry out from the time slot of the reception operation of this slave station received communication request and be called as the wait time slot.
At first, will the operation of cordless telephone base unit 3 be described.As shown in Figure 3, when turn-on power, control section 320 determines to use the timing of the frame/time slot of time-division multiple access (TDMA) in the mode of self-timing, and selects a main synchronization slot among in the predetermined main website sending time slots from wireless communication system optional one, with the transmission of beginning control data.In the transmission of control data regularly, control section 320 to building block 306 output sending time slots number and in telephone pedestal unit ID storage area 305 ID of self device of record.In building block 306, synchronizing signal is added to sending time slots number and ID, and is output to wireless portion 307 thus.Therefore, send control data via antenna 308.Control section 320 is carried out such control, so that carry out the conversion of idle condition, with except with predetermined slave station sending time slots in wireless communication system in the corresponding time slot of main synchronization slot time slot (promptly, wait for time slot) in, wait for from the reception of the call request of cordless telephone remote unit 4 transmissions.Control section 320 control wireless portions 307 are carried out in waiting for time slot and are received operation.The demodulating data of reception and demodulation in waiting for time slot is outputed to building block 306, and, building block 306 is according to synchronizing signal, in each wait time slot, from the demodulating data of being imported, extract control data field and CRC1, and, if received signal is correct, then export the control data that in the control data field, receives to control section 320.Control section 320 is carried out such control, with control data executable operations according to reception, and, for example, if the control data that is received indication communication request then begins to be used to begin and the slave station in conduct transmission source or the operation of communicating by letter of inferior main website.
Below, with the operation of explanation indoor set 2b.As shown in Figure 2, at first, control section 214 is set to continuous accepting state to wireless portion 210, and what main website began the control data that will be sent by main website obtains operation synchronously.Then, the grouped data of wireless portion 210 receptions and demodulation is transferred to building block 209.
Building block 209 is based on extracting the control data field from the synchronizing signal of the grouped data of demodulation, and according to the data of the control data field that is received and to control section 214 output transmission source ID and receiving slot number.
When the ID that receives is consistent with the ID of record in telephone pedestal unit ID storage area 215, the time slot of the ID of control section 214 receiving records in telephone pedestal unit ID storage area 215 is set to main synchronization slot, and subsequently, cordless telephone base unit 3 is carried out in identical timing and is received.When receiving the control data of the notice that is used to send the time slot that transmits control signal, set up with the frame of cordless telephone base unit 3 (main website) and time slot synchronously.For example, when sending the time slot that transmits control signal from cordless telephone base unit 3 for the notice of the fact of " 1 ", the mode that is set to time slot 1 with the time slot (main synchronization slot) that receives control data determines that frame regularly.More specifically, set up with the frame of cordless telephone base unit 3 and time slot synchronously after, in main synchronization slot, indoor set 2b is as the slave station of main website and carry out control, and, in wireless communication system in predetermined main website one side, cordless telephone base unit 3 is used as receiving slot at the main synchronization slot that sending time slots transmits control signal.Select in the sending time slots on predetermined main website one side wireless communication system except being used for as the time slot the main synchronization slot of slave station executable operations,, and send the control data of time main website as subsynchronous time slot.In this embodiment, the next time slot of the main synchronization slot that be sent by cordless telephone base unit 3 is set to the subsynchronous time slot of indoor set 2b.
Control section 214 is carried out the control that is used to be transformed into idle condition, in idle condition, by be provided with except with slave station (cordless telephone remote unit a 4) side predetermined in wireless communication system on sending time slots in main synchronization slot and the corresponding time slot of subsynchronous time slot time slot as waiting for time slot, wait for the call request that receives from cordless telephone remote unit 4.
When carrying out the conversion of idle condition, in main synchronization slot, receive the control signal that sends from cordless telephone base unit 3.Therefore, carry out the control of slave station, that is, synchronous keeps.In the timing of main synchronization slot, control section 214 control wireless portions 210 receive the control signal of cordless telephone base unit 3, and export the demodulating data that is received to building block 209.Building block 209 is based on synchronizing signal, extracts the control data field from the grouped data of demodulation, and to the reception data of control section 214 output control data fields, and, send the notice that regularly detects synchronizing signal to sync section 208.Sync section 208 is set to predetermined mode regularly with the timing that detects synchronizing signal, adjusts signal to the timing of building block 209 output frames and time slot.In the example of the operation that the timing that sync section 208 is carried out is adjusted, cycle to the timing of the detection synchronizing signal sent in main synchronization slot counts, for example, corresponding to the sense cycle of synchronizing signal and the skew of predetermined period (frame period), adjust signal to the timing of building block 209 output frames and time slot.At this moment, be desirably in the sync section 208, the detection of the synchronizing signal cycle regularly is counted with a short as far as possible chronomere.Do not influence with the mode of communicating by letter of main website and slave station with the transmission that produces by the timing adjustment of frame and time slot shake this chronomere is set.For example, than by through shorter time required time of determined 1 bit transfer of traffic rate (bit rate) of the communication of this system (for example, the chronomere of 1/10 bit) in, to the sense cycle timing of synchronizing signal, and signal is adjusted in the timing of generation frame and time slot.And signal is not regularly adjusted in output when transmission/reception is not carried out in the substation, so that adjust the timing of frame and time slot.For example; in guard time; the timing of frame and time slot is adjusted into: after the reception of finishing main synchronization slot, carry out the transmission of next time slot or receive the required time; promptly; forbid the time in the transmission that the end of each time slot provides, so that compensation is in the execution of time-division communication, by the caused delay that receives timing of propagation delay.
And, control section 214 is realized such control: in wireless communication system, in the sending time slots of predetermined slave station, except (promptly corresponding to the time slot the time slot of main synchronization slot and subsynchronous time slot, wait for time slot) in, carry out the conversion of idle condition, to wait for from the reception of the call request of cordless telephone remote unit 4 transmissions.Control section 214 control wireless portions 210 are carried out in waiting for time slot and are received operation.Waiting for to building block 209 output and to receive in the time slot and the demodulating data of demodulation, and, building block 209 is based on synchronizing signal, extract control data field and CRC1 in the demodulating data of importing the time slot from waiting at each, and, if the signal that receives is correct, then export the control data that in the control data field, receives to control section 214.Then, control section 214 is carried out such operation: according to the control data executable operations that is received, and, for example, if the control data that is received indication communication request then begins to be used to begin to send with conduct the operation of communicating by letter of the slave station in source.
At last, will the operation of cordless telephone remote unit 4 be described.As shown in Figure 4, at first, control section 410 search are stored in the control data of the cordless telephone base unit 3 in the telephone pedestal unit ID storage area 412 in receiving continuously, reception is stored in the control data in the telephone pedestal unit ID storage area 412, with the notice of the sending time slots that sends the control time slot that cordless telephone base unit 3 sends, and with the mode identical with indoor set 2b, in time-division multiple access (TDMA), set up cordless telephone base unit 3 on frame/time slot synchronously.After setting up synchronously, in main synchronization slot, receive the control signal that sends from cordless telephone base unit 3, should be synchronously with maintenance.In the timing of main synchronization slot, control section 410 control wireless portions 407 receive the control signal of cordless telephone base unit 3, with the demodulating data that is received to building block 406 outputs.Building block 406 extracts the control data field based on synchronizing signal and from the grouped data of demodulation, and the data of the control data field that is received to control section 410 outputs, and, send the notice of the timing that detects synchronizing signal to sync section 405.Sync section 405 is set to predetermined mode regularly regularly to detect synchronizing signal, adjusts signal to the timing of building block 406 output frames and time slot, and, in building block 406, adjust the timing of frame and time slot based on regularly adjusting signal.Cordless telephone remote unit 4 receives the control signal that sends from cordless telephone base unit 3.Therefore, the operation when carrying out synchronous keeping of sync section 405 and building block 406 is identical with the operation of indoor set 2b, and will omit detailed description.
In addition, control section 410 is carried out such control: main website sending time slots (slave station receiving slot) rather than set up with cordless telephone base unit 3 synchronously after be used for receiving the main synchronization slot of the control data of cordless telephone base unit 3, the control data of reception indoor set 2b.More specifically, control section 410 control wireless portions 407, so that the reception of execution in main website sending time slots (slave station receiving slot), with the demodulating data that is received to building block 406 outputs.Building block 406 is based on synchronizing signal and from demodulated packets extracting data control data field, and the data of the control data field that is received to control section 410 outputs.When receiving with control data at the consistent indoor set 2b of the ID of intercom system ID storage area 413 stored, control section 410 stops except the main synchronization slot of the control data that is used to receive cordless telephone base unit 3 and is used to receive the reception of the time slot the subsynchronous time slot of control data of indoor set 2b, causes wait state then.
Next, with reference to Fig. 6 to 11, the sending time slots that explanation is brought when indoor set 2b, cordless telephone base unit 3 and 4 executive communications of cordless telephone remote unit and the state of receiving slot.Fig. 6 to 11 is the figure that are used for illustrating the state of the sending time slots that brought and receiving slot when in wireless communication system executive communication according to an embodiment of the invention.
As shown in Figure 6, in this example, exist time slot to arrange, wherein with time division multiplexing, one frame is made of the sending time slots (that is, time slot 1 to 4) of main website one side predetermined in wireless communication system, and, similarly, constitute by sending time slots (that is, time slot 5 to 8) in slave station one side.For the time slot of wireless communication system 1, sending time slots is made of 4 time slots, and, constitute by 4 time slots with the corresponding receiving slot of sending time slots.
At first, when turn-on power, cordless telephone base unit 3 determines to use the timing of the frame/time slot of time-division multiple access (TDMA) in the mode of self-timing, and is chosen in the sending time slots on predetermined main website one side in the wireless communication system optional one, begins the transmission (S1) of control data thus.Then, beginning except corresponding to the receiving slot in the main website the receiving slot in the main website of the time slot that is used to transmit control signal (that is, wait for time slot) to be received (S2).Fig. 6 shows an example, and wherein, cordless telephone base unit 3 selects time slots 1 to begin the transmission of control data, and the time slot 1 that is used to send control data is set to main synchronization slot, and time slot 6 to 8 is set to wait for time slot.
Based on the control data that in main synchronization slot, is sent out, set up the synchronous of indoor set 2b.More specifically, indoor set 2b at first begins continuous reception (S3), and, when receiving, stop continuous reception from control signal that cordless telephone base unit 3 sends, and, according to be included in the control signal such as the information of timeslot number set up with the frame of cordless telephone base unit 3 and time slot synchronously, and the operation (S4) of beginning slave station of the control signal of reception cordless telephone base unit 3 in main synchronization slot (time slot 1).Then, any main website sending time slots of selection except the synchronization slot that transmits control signal is with the transmission (S5) of beginning control signal.Afterwards, begin to receive, that is, wait for time slot (S6) except corresponding to the main website receiving slot the main website receiving slot of main synchronization slot that will be used as slave station and the subsynchronous time slot that is used to transmit control signal.Fig. 6 shows an example, and wherein, indoor set 2b selects time slot 2 and begins the transmission of control data.The time slot 2 that is used to send control data is set to subsynchronous time slot, and time slot 7 and 8 is set to wait for time slot.
Based on the control data that sends in main synchronization slot, similarly, foundation is synchronous with cordless telephone remote unit 4.More specifically, cordless telephone remote unit 4 at first begins continuous reception (S7), and, when receiving, stop continuous reception, and set up and the frame of cordless telephone base unit 3 and synchronous (S8) of time slot based on the information that is included in the control signal such as timeslot number from control signal that cordless telephone base unit 3 sends.Then, corresponding to the timing of frame and time slot, begin to receive the main website sending time slots (S9) except main synchronization slot.When receiving from control signal (S10) that indoor set 2b sends, afterwards, stop the reception of the time slot except main synchronization slot and subsynchronous time slot, brought wait state (S11) like this.
Because be used to set up the synchronous time slot with indoor set 2b and cordless telephone remote unit 4, in synchronization slot, in each time slot 1 of every frame, cordless telephone base unit 3 is carried out the transmission of control datas.Yet, only in the time will sending some control data, just in first frame, send control data by indoor set 2b in the time slot except that time slot 2.Reason is as follows.Because cordless telephone remote unit 4 and indoor set 2b set up synchronously with cordless telephone base unit 3 respectively in synchronization slot, so cordless telephone remote unit 4 and indoor set 2b are synchronized with each other.By being provided with after time slot 2 in first frame sends control data as time slot, correspondingly, for example, when the visitor arrives and calling detection part 103 detects and calls out and when sending call request, indoor set 2b carries out transmission.
Although in this embodiment, indoor set 2b sent control data, sent control data (if any) then in the time slot 2 as first frame of time slot, it does not need to carry out this transmission.In this case, cordless telephone remote unit 4 is provided with accepting state the receiving slot except that synchronization slot (from time slot 2 to time slot 4), and, wait for any time slot that sends control data from indoor set 2b.
In addition, by before determining the position relation between synchronization slot and time slot, cordless telephone remote unit 4 can be known the receiving slot of time slot based on the receiving slot of synchronization slot, and, only wait for that time slot 2 is just enough.Therefore, also might control battery consumption.In the example according to present embodiment, for example, if the next time slot of synchronization slot is confirmed as time slot, then cordless telephone remote unit 4 only waits for that time slot 2 is just enough.
And indoor set 2b can repeatedly transmit control signal.Therefore, cordless telephone remote unit 4 can receive the control signal of indoor set 2b reliably, and cordless telephone remote unit 4 is just enough at the only specific synchronization slot (time slot 2 the example at Fig. 6) of reception after indoor set 2b receives control signal.Like this, also might control battery consumption.At this moment, indoor set 2b transmits control signal every several frames.Therefore, also might reduce the transmission of control signal number, and reduce interference to other radio communication device.
Similarly, indoor set 2b can receive the time slot that is used for transmitting control signal before the transmission of control signal, and can confirm that other radio communication device does not use relevant time slot, and can transmit control signal, that is, can alternately carry out to the affirmation of the existence of the interference of other radio communication device and the transmission of control signal, and, can in the interference that reduces other radio communication device, send signal regularly or brokenly.In the case, for example, the incoming level checkout gear of the incoming level by in indoor set 2b as shown in Figure 2, being provided for detecting received signal, and realize the structure of indoor set 2b.The incoming level checkout gear is by constituting with the lower part: be connected to wireless portion 210 and be used for taking out the signal that receiving circuit was received in the wireless portion 210 a part, carry out detection and rectification, and output corresponding to the circuit of the DC output of the level of received signal; And be used for, with digital form conversion A/D conversion circuit corresponding to the DC output of the level of the signal that is received.For example, control section 214 control wireless portions 210, receiving in the time will transmitting control signal, on the frequency that transmitting control signal of the time slot (time slot) that is being used for transmitting control signal, carrying out, and the reception period of time slot time slot first, middle and last reading corresponding to the numeral of the output level of received signal by A/D conversion circuit in regularly export.When the incoming level that reads thus is equal to or less than predetermined value, carry out control, in the time slot of next frame, to transmit control signal.In addition, be higher than at the incoming level that reads thus under the situation of predetermined value, carry out the reception in time slot continuously, be equal to or less than this predetermined value with the wait incoming level, and carry out control, to transmit control signal at time slot.Under the situation of the wireless communication system that receives all sending time slots that send by main website under the wait state of slave station, inferior main website can be used to: when the incoming level that reads in the time slot that is being used for transmitting control signal is higher than predetermined value, receive other time slot, and, selection has the time slot of the incoming level of the predetermined value of being equal to or less than, and transmit control signal, and, can receive all time slots except the synchronization slot that sends by main website, and can select any time slot, and can transmit control signal with minimum incoming level.
With reference to Figure 12, the indoor set 2b that explanation is brought when the calling detection part 103 of outdoor location 2a detects visitor's calling and the communications status of cordless telephone remote unit 4.
As shown in figure 12, in the time slot 2 that will become time slot, do not send in the state of any information, when the calling detection part 103 of outdoor location 2a detects calling, in the time slot 2 as time slot, indoor set 2b begins the intercommunication call request as control data is sent to cordless telephone remote unit 4 (S12) with view data.
Cordless telephone remote unit 4 is display image data on monitor 414, and simultaneously, broadcast segment 401 sends information (S13) to the user.
With reference to Figure 13, the state when cordless telephone remote unit 4 during in response to the incoming call of the intercom system of sending from indoor set 2b notice, performed communication will be described below.
As shown in figure 13, thereby when sending the call request user when making cordless telephone remote unit 4 carry out operation responses to cordless telephone remote unit 4 from indoor set 2b, call request is sent to indoor set 2b, and, begin to receive receiving slot corresponding to the time slot that sends call request.At this moment, be chosen on predetermined slave station one side, from sending time slots (time slot 5 to 8), remove the sending time slots outside the time slot (time slot 5 and 6) corresponding to synchronization slot and time slot, as the time slot that is used to send call request.In this embodiment, show an example, wherein, cordless telephone remote unit 3b sends call request in time slot 7, and receives response (S14) to this conversation from indoor set 2b in time slot 3.
When receiving call request, indoor set 2b utilizes the sending time slots (that is, time slot 3) corresponding to the time slot that receives call request, sends close-talking response (S15).
Then, when receiving close-talking response, cordless telephone remote unit 4 begins conversation (S16) from next time slot 7.Subsequently, in time slot 3 and 7, via indoor set 2b and cordless telephone remote unit 4 transmission/reception speech datas, outdoor location 2a is in the same place with the sound link of cordless telephone remote unit 4, the user can converse with the visitor like this.
Even the conversation of beginning and indoor set 2b, cordless telephone remote unit 4 also is received in the control data that sends the synchronization slot continuously from cordless telephone base unit 3.Reason is as follows.When cordless telephone remote unit 4 is carried out conversation with indoor set 2b, send under the situation of incoming call, freely give notice to cordless telephone remote unit 4 from telephone wire 5.Thus, when from cordless telephone base unit 3 when cordless telephone remote unit 4 sends the notice of this incoming call, can be broadcasted through stack sound with the loud speaker of indoor set 2b conversation, this has high convenience.
And even the conversation of beginning and indoor set 2b, cordless telephone remote unit 4 also is received in the view data that sends the time slot from indoor set 2b continuously.Therefore, during conversing with the visitor, the user can observe for example situation of visitor's looks, and this is very convenient.
And under the situation of outside line incoming call, as mentioned above, cordless telephone base unit 3 is broadcasted this outside line incoming call via synchronization slot, and the cordless telephone remote unit 4 operation buzzers that receive the outside line incoming call are with to this incoming call of user notification.When the user carries out attended operation, select to send call request, to begin conversation like this with outside line to cordless telephone base unit 3 except corresponding to the sending time slots the sending time slots of synchronization slot and time slot.Cordless telephone remote unit 4 can receive time slot continuously, and also can with outside line conversation during wait for calling from indoor set 2b.
And, receiving at one among them and to call out and to broadcast under the situation of this calling, cordless telephone remote unit 4 receives the time slot that is used to send other control signal continuously.And, therefore,, can carry out broadcasting simultaneously in that both send when calling out from indoor set 2b and cordless telephone base unit 3.
With reference to Fig. 7, the state of communicating by letter of indoor set 2b, cordless telephone base unit 3 and cordless telephone remote unit 4 performed when calling detection part 103 as outdoor location 2a detects visitor's calling will be described below.The initial condition indication of the cordless telephone base unit 3 among Fig. 7, indoor set 2b and cordless telephone remote unit 4 is with reference to the illustrated done state of Fig. 6, that is, such state, wherein, when main synchronization slot transmitted control signal, cordless telephone base unit 3 receives waited for time slot; When transmitting control signal in subsynchronous time slot, indoor set 2b receives and waits for time slot; And cordless telephone remote unit 4 receives main synchronization slot and subsynchronous time slot.
At first, will the operation of indoor set 2b be described.When detecting visitor's calling, in subsynchronous time slot, send call signal (S21) to cordless telephone remote unit 4.Then, select in the wait time slot of cordless telephone base unit 3, to send call request (S22) to cordless telephone base unit 3.More specifically, indoor set 2b selects in the wait time slot of self device, to switch the selected time slot that is used for carrying out the operation of slave station, begins the transmission to cordless telephone base unit 3 thus.Afterwards,, be switched,, that is, receive operation (S23) to carry out the operation of slave station corresponding to the time slot that sends the time slot of call request to cordless telephone base unit 3 with transmission source identification code (ID) in order to receive close-talking response from cordless telephone base unit 3.When cordless telephone base unit 3 receives close-talking response, subsequently, carry out continuously to the transmit operation of the time slot that sends call request and to the reception operation of the time slot that receives close-talking response.In the example of Fig. 7, select time slot 3 to carry out the time slot of communicating by letter with cordless telephone base unit 3 as indoor set 2b with 7.Indoor set 2b is by being provided with time slot 3 and 7 as slave station, and the operation so that indication will be performed promptly, receives in time slot 3 from the wireless signal of cordless telephone base unit 3 transmissions and the operation that sends wireless signals at time slot 7 to cordless telephone base unit 3.
Below, with the operation of explanation cordless telephone base unit 3.When waiting for that time slot receives control signal, the identification code (ID) in the transmission source in the control signal that cordless telephone base unit 3 receives based on being included in, and the transmission source of inspection call request.Under the identification code (ID) that sends the source situation consistent with identification code (ID) in being stored in intercom system ID storage area 310, the call request that cordless telephone base unit 3 identification sends from indoor set 2b, and go on the air from the operation of the calling of intercom system one side.More specifically, the visitor's that sends of communication system 2 notice is broadcasted (S24) via broadcast segment 312 internally.Then, at main website sending time slots, send close-talking response (S25) corresponding to the time slot that receives call request.Subsequently, carry out continuously to the reception operation of the time slot that receives call request with to the transmit operation of the time slot that sends close-talking response.In the example of Fig. 7, select time slot 3 to carry out the time slot of communicating by letter with indoor set 2b as cordless telephone base unit 3 with 7.The operation that 3 indications of cordless telephone base unit send wireless signal and receive wireless signal from indoor set 2b in time slot 7 to indoor set 2b in time slot 3.
Below, with the operation of explanation cordless telephone remote unit 4.When receiving call signal in the subsynchronous time slot of the control signal that is receiving indoor set 2b, cordless telephone remote unit 4 begins to be used to broadcast the operation (S26) that keeps the reception of main synchronization slot and subsynchronous time slot from the calling of intercom system one side, simultaneously.In other words, broadcast segment 401 broadcasting are from the visitor's of intercom system 2 notice.
With reference to Fig. 8, below, with the state of explanation when cordless telephone base unit 3 performed communication in response to the time from the calling of indoor set 2b transmission.The initial condition indication of the cordless telephone base unit 3 in Fig. 8, indoor set 2b and cordless telephone remote unit 4 is passed through with reference to the illustrated done state of Fig. 7, promptly, such state, wherein, the calling of cordless telephone base unit 3 and cordless telephone remote unit 4 broadcasting indoor set 2b.
At first, will the operation of cordless telephone base unit 3 be described.When the state of the calling that sends from indoor set 2b in 3 broadcasting of cordless telephone base unit, when operation part 311 is carried out from the attended operation of the calling of indoor set 2b transmission, in sending time slots, send connection request (S31) to indoor set 2b, and the broadcasting that stops call, to connect voice path.Subsequently, the user's voice of the cordless telephone base unit 3 of the microphone input by conversation part 313 is sent to indoor set 2b via sound circuit 302, building block 306 and wireless portion 307, and, via building block 306 and sound circuit 302, export the signal that indoor set 2b is received from the loud speaker of conversation part 313.In the example of Fig. 8, after S31, in time slot 3, send the voice signal that sends from cordless telephone base unit 3, in time slot 7, receive the voice signal that sends from indoor set 2b (that is, outdoor location 2a), and export it from cordless telephone base unit 3.
Below, with the operation of explanation indoor set 2b.When carrying out with time slot that cordless telephone base unit 3 is communicated by letter in, when receiving connection request via cordless telephone base unit 3, indoor set 2b carries out the conversion (S32) of the talking state of cordless telephone base unit 3, and sends in subsynchronous time slot to cordless telephone remote unit 4 and to be used to call out the control signal (S33) that stops.
Subsequently, voice via the visitor of the microphone input of the conversation part 102 of outdoor location 2b are sent to cordless telephone base unit 3 by multichannel decomposition circuit 104, multichannel decomposition circuit 220, sound circuit 206, building block 209 and wireless portion 210, and, the signal that is received by cordless telephone base unit 3 from the loud speaker output of conversation part 102 via building block 209, sound circuit 206, multichannel decomposition circuit 220 and multichannel decomposition circuit 104.In the example of Fig. 8, after S32, in time slot 3, receive the voice signal that sends from cordless telephone base unit 3, and export it from outdoor location 2b, and, in time slot 7, send the voice signal that sends from indoor set 2b (that is outdoor location 2a).
Below, with the operation of explanation cordless telephone remote unit 4.When receive at subsynchronous time slot from indoor set 2b send be used to call out the control signal that stops the time, cordless telephone remote unit 4 stops the broadcasting of the calling of intercom system, and turns back to wait state (S34).
With reference to Fig. 8, below, with explanation responded after the calling that indoor set 2b sends at cordless telephone base unit 3, the state of performed communication when disconnecting conversation via cordless telephone base unit 3.
At first, will the operation of cordless telephone base unit 3 be described.When in the state of cordless telephone base unit 3, when operation part 311 is carried out opening operation, ask (S40) at sending time slots to indoor set 2b transmission disconnection, to disconnect voice path via indoor set 2b and outdoor location 2a conversation.When receiving disconnection affirmation (S41) from indoor set 2b, execution is stopped (S42) to the time slot of the transmission of indoor set 2b, and the time slot that receives indoor set 2b is switched, to carry out the operation (S43) of wait time slot.
Below, with the operation of explanation indoor set 2b.When receiving the disconnection request from cordless telephone base unit 3, indoor set 2b disconnects voice path (S44).Then, send disconnection to cordless telephone base unit 3 and confirm (S45).Afterwards, stop to receive the time slot (S46) of cordless telephone base unit 3, switch to the operation of carrying out main website, that is, wait for the operation (S47) of time slot with the time slot that will be used to carry out to the transmission of cordless telephone base unit 3.
With reference to Fig. 9, below, the state when cordless telephone remote unit 4 performed communication in response to from calling that indoor set 2b sends the time is described.The initial condition indication of the cordless telephone base unit 3 in Fig. 9, indoor set 2b and cordless telephone remote unit 4 is with reference to the done state of Fig. 7 explanation, promptly, such state, wherein, the calling of cordless telephone base unit 3 and cordless telephone remote unit 4 broadcasting indoor set 2b.
At first, will the operation of cordless telephone remote unit 4 be described.When carrying out the state of the calling that sends from indoor set 2b in broadcasting in cordless telephone remote unit 4, operation part 409 in to the time from the operation response of the calling of indoor set 2b transmission, under the situation of the reception that keeps main synchronization slot and subsynchronous time slot, one of sending time slots of the slave station of selection except main synchronization slot and subsynchronous time slot sends connection request (S51), the broadcasting that stops call, beginning is corresponding to the reception of the receiving slot in the slave station of the time slot that sends connection request, and reception connects affirmation (S52).Then, when receiving the connection affirmation, connect voice path, subsequently, user's voice through the cordless telephone remote unit 4 of the microphone input of conversation part 403 is sent to indoor set 2b via sound circuit 402, building block 406 and wireless portion 407, and the signal that receives from indoor set 2b is via building block 406 and sound circuit 402 and from the loud speaker output of conversation part 403.In the example of Fig. 9, under the situation of the reception that keeps main synchronization slot (time slot 1) and subsynchronous time slot (time slot 2), after S52, in time slot 8, send voice signal from cordless telephone remote unit 4, and, in time slot 4, the voice signal that reception sends from indoor set 2b (being outdoor location 2a), and from 4 outputs of cordless telephone remote unit its.
The time slot that sends connection request to indoor set 2b with send under the overlapping situation of the time slot of call notification to cordless telephone base unit 3 by indoor set 2b, indoor set 2b can not receive connection request.Therefore, not sending connection to cordless telephone remote unit 4 confirms.Reason for this reason, though after the transmission of the connection request of indoor set 2b, in special time, carry out continuously and receive, can not receive to connect and confirm, cordless telephone remote unit 4 changes the time slot that is used for sending to indoor set 2b connection request.
Below, with the operation of explanation indoor set 2b.When in the time slot that the wait of carrying out cordless telephone remote unit 4 receives when cordless telephone remote unit 4 receives connection request, indoor set 2b begins to the control of the conversion of the talking state of cordless telephone remote unit 4 (S55).At first, in corresponding to the main website sending time slots of reception to the time slot of the connection request of cordless telephone remote unit 4, indoor set 2b sends to connect to cordless telephone remote unit 4 and confirms (S56).Subsequently, carry out to receive continuously connection request time slot reception and send the transmission of the time slot that is connected affirmation, to carry out the voice communication with cordless telephone remote unit 4.In the example of Fig. 9, after S56, in time slot 4, send the voice signal that sends from indoor set 2b (being outdoor location 2a) to cordless telephone remote unit 4, and, in time slot 8, receive the voice signal that sends from cordless telephone remote unit 4, and it is exported through outdoor location 2a.Identical about the explanation of voice path connection status with the explanation of the operation of carrying out by cordless telephone base unit 3 with reference to Fig. 8, therefore will be omitted.
And, when when cordless telephone remote unit 4 receives connection request, carrying out in the slave station sending time slots of the transmission of cordless telephone base unit 3, indoor set 2b sends to call out to cordless telephone base unit 3 and stops (S57), and stops to carry out from the reception (S58) of the slave station receiving slot of the reception of cordless telephone base unit 3.Then, be used to carry out the operation that is switched to main website to the operation of the slave station sending time slots of the transmission of cordless telephone base unit 3, that is, wait for the reception operation (S59) of time slot.
Below, with the operation of explanation cordless telephone base unit 3.Call out when stopping when receiving in the time slot that is receiving indoor set 2b, cordless telephone base unit 3 stops the broadcasting (S60) of the calling of intercom system, and stops to send (S61) being used to carry out in the time slot of the transmission of indoor set 2b.Then, the time slot that is used to receive indoor set 2b is switched to and waits for and receive (S62).
With reference to Figure 10, below, the state of the communication between indoor set 2b, cordless telephone base unit 3 and the cordless telephone remote unit 4 performed when the incoming call test section 303 of cordless telephone base unit 3 detects the outside line incoming call and responds by cordless telephone remote unit 4 is described.The indication of the initial condition of cordless telephone base unit 3, indoor set 2b and cordless telephone remote unit 4 is with reference to the illustrated done state of Fig. 6 in Figure 10, promptly, such state, wherein when when main synchronization slot transmits control signal, cordless telephone base unit 3 receives waits for time slot, and when transmitting control signal in subsynchronous time slot, indoor set 2b receives and waits for time slot, and cordless telephone remote unit 4 receives main synchronization slot and subsynchronous time slot.
At first, explanation is used to the operation that detects the outside line incoming call and broadcast this incoming call.When the incoming call that detects from outside line, in main synchronization slot, cordless telephone base unit 3 sends call signals (S70) to indoor set 2b and cordless telephone remote unit 4, and, in broadcast segment 312, the broadcasting of beginning outside line incoming call.On the other hand, when at main synchronization slot receiving calling signal (S71), cordless telephone remote unit 4 begins the broadcasting of outside line incoming call, the reception that keeps main synchronization slot and subsynchronous time slot simultaneously in broadcast segment 401.When receiving call signal (S72) at main synchronization slot, similarly, indoor set 2b begins the broadcasting of outside line incoming call in broadcast segment 205, keeps the reception of main synchronization slot and the transmission of subsynchronous time slot (S72) simultaneously.
Below, will operation performed when cordless telephone remote unit 4 responds the outside line incoming calls be described.When in state, when in operation part 409, carrying out the operation response to the outside line incoming call by cordless telephone remote unit 4 broadcasting outside line incoming calls, selection is except corresponding to one in the slave station sending time slots the time slot of main synchronization slot and subsynchronous time slot, and transmission connection request, the reception (S80) that keeps main synchronization slot and subsynchronous time slot simultaneously, and, stop the broadcasting of outside line incoming call, and beginning is confirmed (S81) corresponding to the reception of the receiving slot in the slave station of the time slot that sends connection request to begin to receive to connect.When receiving the connection affirmation, connect voice path, subsequently, user's voice via the cordless telephone remote unit 4 of the microphone input of conversation part 403 is sent to cordless telephone base unit 3 via sound circuit 402, building block 406 and wireless portion 407, and the signal that receives from cordless telephone base unit 3 is via building block 406 and sound circuit 402 and from the loud speaker output of conversation part 403.In the example of Figure 10, after S81, in time slot 7, send voice signal from cordless telephone remote unit 4, the reception that keeps main synchronization slot (time slot 1) and subsynchronous time slot (time slot 2) simultaneously, and, in time slot 3, receive the voice signal that sends from cordless telephone base unit 3 (that is, transmitter), and export it via cordless telephone remote unit 4.
On the other hand, when under the state that is broadcasted in the outside line incoming call, waiting in the time slot when cordless telephone remote unit 4 receives connection request, cordless telephone base unit 3 begins to be used to begin the control of communication (S85) with cordless telephone remote unit 4, in main synchronization slot, broadcast stop (S86) of incoming call, in main website sending time slots, send to connect and confirm (S87), and connect voice path corresponding to the time slot that receives connection request.Subsequently, be sent to cordless telephone remote unit 4 from the sound of the transmitter of telephone wire 5 input via line interface part 301, sound circuit 302, building block 306 and wireless portion 307, and the signal that receives from cordless telephone remote unit 4 is output to telephone wire 5 via building block 306, sound circuit 302 and line interface part 301.In the example of Figure 10, after S87, in time slot 3, the voice signal that sends from telephone wire 5 (that is, transmitter) is sent out, and, in time slot 7, be received this voice signal, and it is outputed to telephone wire 5 from cordless telephone remote unit 4.
And when receiving the broadcasting that incoming call stops at main synchronization slot, indoor set 2b stops the broadcasting (S88) of outside line incoming call.
With reference to Figure 11, below, with explanation performed indoor set 2b and the state of communicating by letter of cordless telephone base unit 3 when the incoming call test section 303 of cordless telephone base unit 3 detects that outside line is imported and responds via cordless telephone remote unit 4 with cordless telephone remote unit 4.The initial condition indication of the cordless telephone base unit 3 in Figure 11, indoor set 2b and cordless telephone remote unit 4 is with reference to the illustrated done state of Fig. 6, promptly, such state, wherein, when when main synchronization slot transmits control signal, cordless telephone base unit 3 receives waits for time slot, when in subsynchronous time slot, transmitting control signal, indoor set 2b receives these and treats time slot, and cordless telephone remote unit 4 receives main synchronization slot and subsynchronous time slot.Be used for detecting (S70), (S71) of the operation of outside line incoming call and this incoming call of broadcasting and Figure 10 and (S72) in each in operation identical, and be endowed identical Reference numeral, and the omission explanation.
At first, will operation performed when via indoor set 2b response outside line incoming call be described.When the operation response in the state of indoor set 2b broadcasting outside line incoming call, in operation part 211, carried out the outside line incoming call, selection is except corresponding to one in the sending time slots in the slave station main synchronization slot and the subsynchronous time slot, and transmission connection request, keep the reception of main synchronization slot and the transmission of subsynchronous time slot (S90) simultaneously, and, stop the broadcasting of outside line incoming call, and beginning is confirmed (S91) corresponding to the reception of the slave station receiving slot of the time slot that is used to send connection request to receive to connect.When receiving the connection affirmation, connect voice path, subsequently, user's voice via the indoor set 2b of the microphone input of conversation part 207 is sent to cordless telephone base unit 3 via sound circuit 206, building block 209 and wireless portion 210, and, export from the loud speaker of conversation part 206 via building block 210 and sound circuit 206 from the signal that cordless telephone base unit 3 receives.In the example of Figure 11, in indoor set 2b, when carrying out operation response, under the situation of the transmission of reception that keeps main synchronization slot (time slot 1) and subsynchronous time slot (time slot 2), execution switches to the control that time slot 3 and 7 will become slave station, after S91, in time slot 7, send the voice signal that sends from indoor set 2b, and, in time slot 3, receive the voice signal that sends from cordless telephone base unit 3 (being transmitter), and it is exported via indoor set 2b.
On the other hand, when in the state of broadcasting outside line incoming call, waiting in the time slot when indoor set 2b receives connection request, cordless telephone base unit 3 begins to be used to begin the control of communication (S95) with indoor set 2b, in main synchronization slot, broadcast stop (S96) of incoming call, in main website sending time slots, send to connect and confirm (S97), and connect voice path corresponding to the time slot that receives connection request.Subsequently, be sent to indoor set 2b from the voice of the transmitter of telephone wire 5 input via line interface part 301, sound circuit 302, building block 306 and wireless portion 307, and the signal that receives from indoor set 2b is output to telephone wire 5 via building block 306, sound circuit 302 and line interface part 301.In the example of Figure 10, after S97, in time slot 3, send the voice signal that sends from telephone wire 5 (being transmitter), and in time slot 7, receive this voice signal, and it is outputed to telephone wire 5 from indoor set 2b.
And when receiving the broadcasting that incoming call stops at main synchronization slot, cordless telephone remote unit 4 stops the broadcasting (S98) of outside line incoming call.
Below, with explanation when producing the outside line incoming call simultaneously and performed operation during from the calling of outdoor location.
At first, will operation performed when producing the calling of intercom system during the outside line incoming call be described.
If produced the outside line incoming call, so, when as Figure 10 (S70), (S71) and (S72), in main synchronization slot during via wireless base unit 3 broadcasting outside line incoming calls, indoor set 2b begins the broadcasting of outside line incoming call, send simultaneously subsynchronous time slot continuously, and the broadcasting of cordless telephone remote unit 4 beginning outside line incoming calls receives subsynchronous time slot simultaneously continuously.When the calling detection part 103 of the outdoor location 2a of indoor set 2b detects visitor's calling under this state, indoor set 2b is the content changing of broadcast segment 205 broadcasting the state that is used to broadcast outside line incoming call and intercom system calling, and, with (S21) among Fig. 7, mode that (S22) is identical with (S23), in subsynchronous time slot, send call signal to cordless telephone remote unit 4, and, switch transmission/receiving slot to carrying out the operation of slave station, send the notice of calling thus to cordless telephone base unit 3.On the other hand, when when indoor set 2b receives call signal, the cordless telephone remote unit 4 of broadcasting outside line incoming call is the state of the content changing of the broadcasting of broadcast segment 401 for the calling of broadcasting outside line incoming call and intercom system.When indoor set 2b receives call signal, similarly, the cordless telephone base unit 3 of broadcasting outside line incoming call is the state of the content changing of the broadcasting of broadcast segment 312 for the calling of broadcasting outside line incoming call and intercom system.
Below, performed operation under the situation that produces the outside line incoming call during the calling of intercom system is worked as in explanation.
When the calling detection part 103 of the outdoor location 2a of indoor set 2b detects visitor's calling and produces the calling of intercom system, indoor set 2b is via the calling of broadcast segment 205 broadcasting intercom systems, and, with (S21) among Fig. 7, (S22) and (S23) illustrated mode, in subsynchronous time slot, send call signal to cordless telephone remote unit 4, transmission/receiving slot to switching to the operation of carrying out slave station, and send the notice of calling to cordless telephone base unit 3, carry out the reception of main synchronization slot simultaneously continuously.When indoor set 2b receives call signal, then, cordless telephone remote unit 4 is the content changing of the broadcasting of broadcast segment 401 state that the calling of intercom system is broadcasted.When indoor set 2b receives call signal, similarly, cordless telephone base unit 3 is the content changing of the broadcasting of broadcast segment 312 state that the calling of intercom system is broadcasted.When in this state, detecting the outside line incoming call, with with Figure 10 in (S70), (S71) and (S72) identical mode, cordless telephone base unit 3 is the content changing of the broadcasting of broadcast segment 312 state that the calling of outside line incoming call and intercom system all is broadcasted, and, in main synchronization slot, the outside line incoming call is broadcast to indoor set 2b and cordless telephone remote unit 4.On the other hand, when when cordless telephone base unit 3 receives the broadcasting of outside line incoming call, the cordless telephone remote unit 4 of the calling of broadcasting intercom system is the content changing of the broadcasting of broadcast segment 401 state that the calling of outside line incoming call and intercom system all is broadcasted.When receiving the broadcasting of outside line incoming call via cordless telephone base unit 3, similarly, the indoor set 2b of the calling of broadcasting intercom system is the content changing of the broadcasting of broadcast segment 205 state that the calling of outside line incoming call and intercom system all is broadcasted.
Below, with explanation in performed operation during when the calling of generation intercom system during the outside line conversation.
At first, will operation performed under the situation of carrying out the outside lines conversation via cordless telephone remote unit 4, when producing the calling of intercom system be described.
In cordless telephone remote unit 4 response outside line incoming calls and cordless telephone remote unit 4 and operation performed before transmitter is carried out conversation with identical with reference to the illustrated operation of Figure 10.Carry out in the state of outside line conversation at cordless telephone remote unit 4,4 execution of cordless telephone remote unit are communicated by letter with cordless telephone base unit 3, carry out the reception of subsynchronous time slot simultaneously continuously.When the calling detection part 103 of the outdoor location 2a of indoor set 2b detects visitor's calling and produce the calling of intercom system in this state, indoor set 2b is via the calling of broadcast segment 205 broadcasting intercom systems, with (S21) among Fig. 7, (S22) and (S23) illustrated mode, in subsynchronous time slot, send call signal to cordless telephone remote unit 4, and, transmission/receiving slot to switching to the operation of carrying out slave station, is sent the notice of calling thus to cordless telephone base unit 3.When indoor set 2b receives call signal, then, cordless telephone remote unit 4 is the content changing of the broadcasting of broadcast segment 401 state that the calling of intercom system is broadcasted.And cordless telephone remote unit 4 exportable notification voices, this notification voice are overlapping or stop voice and send the notice of the calling of intercom system via the loud speaker of conversation part 403 during the outside line conversation with voice during outside line conversation.Under situation about sending during the outside line conversation via cordless telephone remote unit 4 to the response of the calling of intercom system, execution is used for keeping the operation of outside lines conversation or being used to disconnect the operation of outside line conversation in operation part 409, and carries out the operation response from the calling of indoor set 2b.Subsequently, indoor set 2b and cordless telephone remote unit 4 are connected to each other in the mode identical with the illustrated performed operation when the response of sending via cordless telephone remote unit 4 calling of intercom system of reference Fig. 9.Carrying out via cordless telephone remote unit 4 under the situation of the calling that produces intercom system when outside line is conversed, similarly, cordless telephone base unit 3 is the content changing of the broadcasting of broadcast segment 312 state of broadcasting the calling of intercom system when when indoor set 2b receives call signal.When the operation response carried out by the operation part 311 of cordless telephone base unit 3 calling of intercom system, the identical mode of operation performed when indoor set 2b responds with the illustrated calling when via 3 pairs of intercom systems of cordless telephone base unit of reference Fig. 8 with cordless telephone base unit 3 is connected to each other, simultaneously, during being connected of cordless telephone remote unit 4 and outside line conversation, carrying out continuously and handle.
Below, with explanation in the communication period of intercom system, performed operation when producing the outside line incoming call.
At first, will illustrate when operation performed during conversation, when producing the outside line incoming call via cordless telephone remote unit 4 and intercom system.
Operation performed before the visitor of the calling of cordless telephone remote unit 4 response intercom systems and operation cordless telephone remote unit 4 and outdoor location 2a realizes conversing is with identical with reference to the illustrated operation of Fig. 9, and, 4 execution of cordless telephone remote unit are communicated by letter with indoor set 2b's, and the while receives main synchronization slot continuously in the state of the conversation of 4 execution of cordless telephone remote unit and indoor set 2b.In this state, the outside line incoming call is detected in the incoming call test section 303 of cordless telephone base unit 3.When producing the outside line incoming call, cordless telephone base unit 3 is via broadcast segment 312 broadcasting outside line incoming calls, and with Figure 10 in (S70), (S71) and (S72) illustrated mode, beginning is to indoor set 2b and the 4 broadcasting outside line incoming calls of cordless telephone remote unit in main synchronization slot.Subsequently, when when cordless telephone base unit 3 receives the broadcasting of outside line incoming call, cordless telephone remote unit 4 is broadcasted the content changing of the broadcasting of broadcast segment 401 for the outside line incoming call state.And, cordless telephone remote unit 4 exportable notification voices, this notification voice with intercom system one side conversation during overlapping with voice, perhaps with the conversation of intercom system one side during stop voice and send the notice of outside line incoming call via the loud speaker of conversation part 403.Under situation about sending with the communication period of intercom system, via cordless telephone remote unit 4 to the response of outside line incoming call, operation part 409 is carried out and is used to keep with the operation of communicating by letter of intercom system or is used to disconnect the operation of communicating by letter with intercom system, and carries out the operation response from the outside line incoming call of cordless telephone base unit 3.Subsequently, cordless telephone base unit 3 and cordless telephone remote unit 4 are to be connected with reference to the identical mode of the illustrated performed operation when via the 4 response outside line incoming calls of cordless telephone remote unit of Figure 10 with top.In the communication period of intercom system, produce under the situation of outside line incoming calls via cordless telephone remote unit 4, similarly, the state that the content changing that cordless telephone base unit 3 is broadcasted broadcast segment 312 is broadcasted for the outside line incoming call.When the operation part 311 of cordless telephone base unit 3 is carried out operation response to the outside line incoming call, executable operations is broadcasted with the outside line incoming call of the part 312 of going off the air, and via the conversation between the user of line receiving unit 301, voice call 302 and conversation part 313 beginning transmitters and cordless telephone base unit 3.
Below, with the recording operation of explanation cordless telephone base unit 3 and intercom system 2.
Intercom system 2 is used as the slave station of cordless telephone base unit 3.Therefore, must store and keep mutual identifying information (ID).When the operation part 211 of intercom system 2 was carried out the operation that is used for the opening entry operation, control section 214 began the control to recording operation.When intercom system 2 opening entries are operated, indoor set 2b at first begins continuous reception, and, when when cordless telephone base unit 3 receives control signal, stopping this continuous reception, and according to the information in the control signal of being included in such as timeslot number set up with the frame of cordless telephone base unit 3 and time slot synchronously.Then, except receiving the time slot of control signal from cordless telephone base unit 3, select one group of transmission/receiving slot and used as slave station, and, at selected sending time slots (promptly, the wait time slot of cordless telephone base unit 3) in, comprises the record request that is stored in the identifying information that self installs in the intercom system ID storage area 216, thus standby in the reception of record permission to 3 transmissions of cordless telephone base unit.After this, when receiving the record permission, the identifying information that is included in the cordless telephone base unit 3 in the record permission is stored in the telephone pedestal unit ID storage area 215, to begin the operation of time main website.Even in special time, carry out to receive continuously but still receiving under the situation of record forbidding (registration disable) after can not receiving record permission (registration acceptance) or sending record request, during conversing, intercom system 2 stops the transmission/reception of this cordless telephone base unit 3, and carry out continuous reception once more, to realize recording operation via other cordless telephone base unit 3.
On the other hand, when the operation part 311 of cordless telephone base unit 3 was carried out the operation that is used for the opening entry operation, control section 320 began the control to recording operation, and was operated to accept the record request from intercom system 2 in special time.The state that can accept record request from the intercom system 2 of cordless telephone base unit 3, when communication system 2 receives record request internally, with the corresponding main website of the time slot of accepting record request sending time slots in, transmission comprises the record permission of the identifying information that self installs that is stored in the telephone pedestal unit ID storage area 305, in addition, the identifying information (that is, become the identifying information of the intercom system 2 in transmission source) that is included in the record request is stored in the intercom system ID storage area 310.In addition, the state that can not accept record request from the intercom system 2 of cordless telephone base unit 3, when communication system 2 receives record request internally, with the corresponding main website of the time slot of accepting record request sending time slots in, cordless telephone base unit 3 sends the record forbidding.
Below, with the situation of explanation intercom system 2 execution with the operation of the operation equivalence of main website.
When turn-on power, promptly, the identifying information that is stored in the telephone pedestal unit ID storage area 215 is not set (for example in when beginning operation, identifying information is ALL0) situation under, intercom system 2 is not carried out the operation of time main website, but determine the timing of the frame and the time slot of time-division communication in the mode of self-timing, select a main website sending time slots, and transmit control signal, in addition, by be provided with except corresponding to the main website receiving slot the time slot of the time slot that is used to transmit control signal as waiting for time slot, and wait is from the wireless signal of slave station (that is cordless telephone remote unit 4).
In addition, when turn-on power, promptly, be provided with under the situation that is stored in the identifying information in the telephone pedestal unit ID storage area 215 in when beginning operation, intercom system 2 is stored in cordless telephone base unit 3 in the telephone pedestal unit ID storage area 215 with the mode search of explanation in Fig. 6 (S3).Yet, even in special time, carrying out continuous reception, still can not receive under the situation of control signal of the cordless telephone base unit 3 that is stored in telephone pedestal unit ID storage area 215, intercom system 2 stops continuous reception, determine the frame in time-division communication and the timing of time slot in the mode of self-timing, select one of main website sending time slots, and transmit control signal, in addition, by be provided with except corresponding to the main website receiving slot the time slot of the time slot that transmits control signal with mode same as described above as the wait time slot, wait is from the wireless signal of slave station (that is, the cordless telephone remote unit 4).
Reception be stored in the main synchronization slot of the cordless telephone base unit 3 in the telephone pedestal unit ID storage area 215 and be provided with identical time slot as after the inferior main website that will begin to operate, intercom system 2 can not receive under the situation of main synchronization slot in special time, in the ON of power supply (conducting) operation, it activates self device again, and restarts the search of cordless telephone base unit 3.
Below, with the method for explanation image of transmission/reception visitor during intercom system is called out and conversed.
When the calling detection part 103 of the outdoor location 2a of intercom system 2 detects when calling out, the monitor 414 that also might carry out the broadcast segment 312 that is used to send the image of being taken by camera part 101 and the monitor 202 that utilizes indoor set 2b, cordless telephone base unit 3 and cordless telephone remote unit 4 shows the operation of visitors' image.
When the calling detection part 103 of the outdoor location 2a of intercom system 2 detects when calling out, control section 214 activates camera part 101 again, to begin taking pictures to the visitor.The image of being taken by camera part 101 is output to indoor set 2b via multichannel decomposition circuit 104, and is output to monitoring circuit 201 via multichannel decomposition circuit 220.In addition, monitoring circuit 201 outputs to monitor 202 to the image that sends from outdoor location 2a, and shows the image that sends from outdoor location 2a via monitor 202.In addition, monitoring circuit 201 outputs to image information storage area 203 to the image that sends from outdoor location 2a.Image information storage area 203 is converted to for example digital picture of jpeg image to input picture in the specified timing of control section 214, and stores this image information.On the other hand, when the calling detection part 103 of the outdoor location 2a of intercom system 2 detects when calling out, control section 214 is to the calling of cordless telephone base unit 3 and cordless telephone remote unit 4 broadcasting from intercom system one side, and, as described in reference Fig. 7, via the calling of cordless telephone base unit 3 and cordless telephone remote unit 4 broadcasting intercom systems.Yet, at this moment, executable operations, call notification with the intercom system of sending cordless telephone base unit 3 and cordless telephone remote unit 4, in addition, the view data that transmission sends from outdoor location 2a by digital translation obtains, be stored in the image information (after this will be called as digital picture) of image information storage area 203, and show that on the monitor 414 of the broadcast segment 312 of cordless telephone base unit 3 and cordless telephone remote unit 4 view data that sends from outdoor location 2a by digital translation obtains, image information by indoor set 2b reception.
At first, explanation is used for send operation from the image information of indoor set 2a to cordless telephone remote unit 4.Control section 214 utilizes subsynchronous time slot, to cordless telephone remote unit 4 send that the view data that sends from outdoor location 2a by digital translation obtains, be stored in the image information the image information storage area 203.When detecting visitor's calling, control section 214 utilizes in subsynchronous time slot has the control data field shown in Figure 5 and the form of information field, and, send call signals to cordless telephone remote unit 4 thus the call signal of the call notification that is used to the to send intercom system control data field that is added to.Then, control section 214 activates camera parts 101, and to the conversion of image information storage area 203 specify images.Then, control section 214 reads the digital picture that obtains via the conversion of image information storage area 203, and,, regularly export these digital pictures to building block 209 in the transmission of subsynchronous time slot in order in the information field of subsynchronous time slot, to send identical digital picture.In building block 209, in subsynchronous time slot, this digital picture is set to information field, and add the check code CRC2 of this information field, and check code CRC2 exported with the check code CRC1 of synchronizing signal, control field and control data field, and, be sent in the wireless signal that digital image information in the subsynchronous time slot is set to information field by wireless portion 210.When having finished corresponding to a screen, when being converted and being stored in the transmission of the digital picture in the image information storage area 203, control section 214 is carried out such control, thereby for digital picture is also upgraded in the conversion of image information storage area 203 specify images once more, and, sequentially read the digital picture of upgrading thus, and carry out transmission continuously.
On the other hand, cordless telephone remote unit 4 receives subsynchronous time slot under holding state, and, for example, when the broadcasting of the calling that receives intercom system at subsynchronous time slot, generation has the broadcast music of tone, with via the calling of broadcast segment 401 to the user notification intercom system.Then, the digital picture that sends from indoor set 2b, promptly the visitor's who is taken by the camera part 101 of outdoor location 2a image is displayed on the monitor 414.More specifically, when receiving the call signal that is used to send the notice that intercom system calls out in the control field at subsynchronous time slot, control section 410 control wireless portion 407 and building blocks 406 are so that receive the information field and the CRC2 of subsynchronous time slot.Building block 406 is according to the synchronizing information of the demodulating data that comes reception of comfortable subsynchronous time slot and demodulation, separate information field and CRC2 field, and according to CRC2 detection reception mistake, and, when they are all correctly received, export the data of the information field that is received to control section 410.Then, the data of the information field that control section 410 decoding is received, and same data are converted to original image, and to monitoring circuit 404 these images of output, and, this image of demonstration on monitor 414.Under the decoded situation of the data that in control section 410, receive about digital picture, carry out control, so that decode image data, thereby show that the image corresponding to defective data division is a white, and, when producing the reception mistake and lacking the partial information of digital picture, produce and show the image of parts of images with disappearance.
Below, explanation is used for sending to cordless telephone base unit 3 from indoor set 2a the operation of image information.Control section 214 is carried out control, and by using by the wireless time slot of beginning with the notice of the calling of sending intercom system to cordless telephone base unit 3, and send the image of taking by camera part 101, simultaneously by using subsynchronous time slot to send the image of taking by camera part 101 to cordless telephone remote unit 4.When indoor set 2a and cordless telephone base unit 3 detect visitor's calling, begin mutual radio communication under the control of (S22) in Fig. 7, (S23), (S24), and send the notice of the calling of intercom system from indoor set 2a to cordless telephone base unit 3.At this moment, have the control data field shown in Fig. 5 and the form of information field by use, the call signal of notice that is used to send the calling of intercom system is superimposed on the control data field, and call signal sent to cordless telephone base unit 3, and, the digital picture that is stored and is stored in the image information storage area 203 is superimposed on the information field, and sends the captured image of camera part 101 to cordless telephone base unit 3.More specifically, control section 214 is set up Radio Link between indoor set 2a and cordless telephone base unit 3, so that send the notice of the calling of intercom system, and, read the digital picture that obtains via 203 conversions of image information storage area, and, when the mutual wireless connections of beginning, in order in the information field of communication time slot, to send digital picture, in the transmission regularly of related time-slot to building block 209 output digital images.Building block 209 digital pictures are set to the information field of related time-slot, add the check code CRC2 of this information field, check code CRC2 is exported to wireless portion 210 with the check code CRC1 of synchronizing signal, control field and control data field, and in subsynchronous time slot, send the wireless messages that digital image information is set to information field from wireless portion 210.The digital picture that is sent to cordless telephone base unit 3 may be identical with the digital picture that will be sent to cordless telephone remote unit 4.When sending identical digital picture, at subsynchronous time slot with to the timing of the sending time slots of cordless telephone base unit 3, control section 214 reads the digital picture that is stored in image information storage area 203, and to building block 209 output digital images.When finished to cordless telephone base unit 3 and cordless telephone remote unit 4 both by 203 conversions of image information storage area and storage corresponding to the transmission of the digital picture of a screen time, control section 214 is to the conversion of image information storage area 203 specify images, digital picture is upgraded in control, and sequentially reads and send once more the digital picture of being upgraded.
On the other hand, cordless telephone base unit 3 receives under holding state waits for time slot, and, for example, in waiting for time slot, receive intercom system calling broadcasting and when being established to the Radio Link of cordless telephone base unit 3, generation has the broadcast sounds of tone, with via the calling of broadcast segment 312 to the user notification intercom system.Then, the digital picture that sends from indoor set 2b promptly, is displayed on the monitor 315 by the captured visitor's of the camera part 101 of outdoor location 2a image.In other words, when the call signal of the notice that in waiting for the control field of time slot, receives the calling that is used to send intercom system, control section 320 begins operation with control wireless portion 307 and building block 306, so that receive to receive the information field and the CRC2 of wait time slot (after this being called communication time slot) of the calling of intercom system, and be established to the Radio Link of cordless telephone base unit 3.Building block 306 is according in the synchronizing information of the demodulating data of communication time slot reception and demodulation and separate information field and CRC2 field, and according to CRC2 detection reception mistake, and, when they are all correctly received, export the data of the information field that is received to control section 320.Afterwards, the data of the information field that control section 320 decoding is received, and same data are converted to original image, and to monitoring circuit 314 output images, and on monitor 315 this image of demonstration.Under the decoded situation of the data that in control section 320, receive about digital picture, carry out control, so that decode image data, so that the image corresponding to defective data division is shown as white, and, when producing the reception mistake and lacking the partial information of digital picture, produce and show the image of parts of images with disappearance.
Below, with reference to Figure 14 and 15, explanation is distributed on mode in the scope of communicating by letter that can not carry out with cordless telephone base unit 3, the situation of transponder device as wireless relay apparatus is provided with cordless telephone remote unit 4.Figure 14 is the figure that the situation of wireless relay apparatus is provided in the wireless communication system that is illustrated in according to the embodiment of the invention.Figure 15 is the figure that is used for illustrating according to the state of embodiments of the invention, the sending time slots that is brought when in the wireless communication system executive communication that comprises wireless relay apparatus and receiving slot.In Figure 14, have with the assembly of Fig. 1 same structure and have identical Reference numeral, and will omit explanation.
Can not reach because wireless communication system shown in Figure 14 10 is placed in the grouping of cordless telephone base unit 3 and cordless telephone remote unit 4, so it comprises transponder device 11.
As shown in figure 15, transmission according to transponder device 11 control signal of intercom system 2 by being grouped into the odd-numbered time slot of control data that cordless telephone base unit 3 is set of this embodiment is set to the even-numbered time slot, carries out retransferring.
At length, send under the situation of control data at time slot 1 at cordless telephone base unit 3 as synchronization slot, transponder device 11 receives the control data of cordless telephone base unit 3 at time slot 1, and is sent in the control data (cordless telephone base unit ID and call control signals) that receives in the time slot 1 in the time slot 3 as the odd-numbered time slot.
Cordless telephone remote unit 4b receives the control data of indoor set 2b by time slot 2 is set for time slot, and by time slot 3 receives transponder device 11 for synchronization slot control data is set.At this moment, cordless telephone base unit 3 or transponder device 11 send control data at the odd-numbered time slot, and indoor set 2b sends control data at the even-numbered time slot.Therefore, cordless telephone remote unit 4 can receive the control data of indoor set 2b and transponder device 11 in the time slot that separates.
In addition, be set in transponder device 11 under the situation of trunking of indoor set 2b, transponder device 11 receives the control data of indoor set 2b in two time slots, and in time slot 4, send control data as the even-numbered time slot, like this, can be under the situation that does not have to disturb the communicating by letter of relaying and indoor set 2b.
In this example, transponder device 11 can be received in the mode of the control data of synchronization slot and the control data in time slot with cordless telephone remote unit 4, the transmission of the control signal that is grouped into even-numbered time slot and indoor set 2b of the control data by cordless telephone base unit 3 is set is set to the odd-numbered time slot, carries out retransferring.Therefore, cordless telephone remote unit 4 can receive: the control signal from the synchronization slot of cordless telephone base unit 3 or transponder device 11 transmissions, so that the signal of the cordless telephone base unit 3a that retransfers; And by the control signal in the time slot of intercom system 2 or transponder device 11 transmissions, so that the signal of the intercom system 2 that retransfers.Yet, if by the time slot of the signal of the employed cordless telephone base unit 3 that is used to retransfer of cordless telephone base unit 3 and transponder device 11 and separated from one another by the time slot of the signal of the employed intercom system 2 that is used to retransfer of intercom system 2 and transponder device 11, then cordless telephone remote unit 4 can be received in control data in the synchronization slot and the control data in time slot.For example, by distributing the time slot that to use, cordless telephone remote unit 4 can receive control data in the synchronization slot and the control data in the time slot in last and back half part of time slot in frame respectively.
Figure 16 shows the hardware configuration that is used to realize as the indoor set 2b of time main website.
Multichannel decomposition circuit 820 is made of the transistor as electrical interface, be used to separate and the visitor's that receives from outdoor location 2a of superposeing picture signal, via dialogic voice signal outdoor location 2a and the visitor and visitor's notification signal of receiving from outdoor location 2a.
Hardware configuration corresponding to multichannel decomposition circuit 820 comprises: intercom system interface 1001; Be used for picture signal 1001 outputs of communication system interface internally, between outdoor location 2a and the indoor set 2b is converted to the image demodulation IC 1002 of the analog picture signal that will use in follow-up phase; Being used for the analog signal conversion of image demodulation IC is that the video of digital video signal obtains IC 1003; Be used to store the SDRAM 1006 of digital video signal; Being used to carry out such as record and reproducing the V850CPU 1005 of the management of digital video signal as CPU; Be used to store the FRASH ROM 1007 of the program of V850CPU 1005; And the memory SRAM1008 that will in the operation of the program of V850CPU 1005, use.
In addition, in order to engage in the dialogue between the user of the visitor of outdoor location 2a and indoor set 2b, 1009 conversions of 2-4 change-over circuit are used for via the analog signal of communicating by letter with outdoor location 2a side as 2 line signals of the phone of interface signal and will be by the analog signal of the voice switch IC 1009 and the wireless communication baseband IC 1011 employed 4-line signals of the sound circuit 806 that constitutes indoor set 2b.
Conversation part 807 is made of microphone 1015 and loud speaker 1016.To output to voice switch 1009 from microphone 1015 at the voice that pedestal one side produces.The voice that produce in outdoor location 2a have the power that is amplified by loud speaker amplifying circuit 1010 via voice switch 1009, and are reproduced by loud speaker 1016.The voice switch 1009 of the part of installation formation sound circuit 806 is so that relatively from the volume of microphone and volume, the also switching transmission and the reception of loud speaker.
Detect input as the host CPU 1017 of control section 814 and calling detection part 804 from the signal of outdoor location 2a.Detecting under the situation of calling, host CPU 1017 is via broadcast segment 805 conductings/close LED 1017, to arrive to user notification.When as to its response, when base unit one side is pressed key matrix switch 1018 corresponding to response button 808, host CPU 1017 detects it, and carries out whole control in the mode that can realize voice call.
When from outdoor location 2a when video obtains IC 1003 input analog picture signals, video obtains IC 1003 and by using SDRAM 1006 analog picture signal is converted to data image signal.
In addition, V850CPU 1005 realizes the record digital image signal and utilizes the function of the temporal information of clock timer 1004 to data image signal interpolation temporal information.V850CPU 1005 utilizes SRAM1008 to move to be stored in the program among the FLASH ROM 1007, thereby realizes this function.
The signal that V850CPU 1005 is produced is output to baseband I C 1011, so that be output to cordless telephone remote unit 3b.
And, utilize LCD drive IC 1019 as monitoring circuit 801, on LCD panel 1020, show from the visitor's of outdoor location 2a transmission image.
Baseband I C 1011 is equipped with the part of control section 814 and the part of building block 809 and sound circuit 806.Baseband I C 1011 is added on the error detecting code that uses synchronizing signal required in the communicating by letter of time-division multiple access (TDMA) and be used for error detection occurs to voice messaging, image information and control signal, produce and the frame and the corresponding transmission serial data of time slot that use time-division multiple access (TDMA), in addition, the serial data that is received is carried out and frame and the corresponding error detection process of time slot of using time-division multiple access (TDMA), and output voice messaging that received, that be free from mistakes and control signal in time slot.
FLASH ROM 1012 realizes the storage and the skipped mode storage area 812 of the program that will be moved by baseband I C 1011.
And, realize memory that will use when baseband I C 1011 working procedures and the image information storage area of in memory, realizing 803 by SRAM 1013.And, in the radio communication between base unit and extension base unit, be used for making the id information of extension base unit identification base unit to be stored in EEPROM 1014.
Transmission/receiving unit 810 is by wireless IC 1015 that is used to use time-division multiple access (TDMA) to carry out wireless transmission/reception and switch 1016 realizations that are used to switch a plurality of antennas, wherein, wireless IC 1015 is utilized frequency hopping to modulate and is amplified input serial data, wireless signal that amplification and demodulation received, and the data that received of output.
Figure 17 shows the hardware configuration that is used to realize cordless telephone remote unit 3b.
Control section 911 is made of baseband I C 1101, Flash ROM 1102, SRAM 1103, EEPROM 1104 and LCD power control circuit 1105.
The SRAM 1003 as memory that baseband I C 1101 utilizes storage will use by the Flash ROM 1102 of the program of baseband I C 1101 operations with when baseband I C 1101 working procedures controls the cordless telephone remote unit.EEPROM 1014 is stored in the radio communication between indoor set 2b and the cordless telephone remote unit 3a, be used to make the id information of indoor set 2b identification cordless telephone remote unit 3a.
Baseband I C 1101 be equipped with will be in wireless transmission/reception the part of employed building block 906 and sound circuit 902.Can be via sound circuit 902 and outdoor location 2a or indoor set 2b conversation.
Flash ROM 1102 has stored will be by the program of baseband I C 1101 operations and jump (hopping) pattern that will use in radio communication, and dancing mode storage area 909 also is installed.
And LCD power control circuit 1105 is controlled the power supply of LCD drive IC 1106 according to the control of baseband I C 1101.
LCD drive IC 1106 is installed in the monitoring circuit 904.And, LCD panel 1107 is installed in the monitor.
In the broadcast segment 901 LED is installed, so that show the incoming call that sends from indoor set 2b.And the response button 910 that the user is carried out the operation response of the incoming call that sends from indoor set 2b is equipped with key matrix 1109.
When via indoor set 2b and outdoor location 2a conversation, microphone 1110 and loud speaker 1111 are installed by the employed conversation part 903 of user.In addition, in order to amplify the electric weight that is used for vibrating speaker 1111, loud speaker amplifying circuit 1112 is installed as the part of sound circuit 902.
By wireless to/about the transmission/receiving unit 907 of the communication data of image and voice wireless IC 1113 is installed from baseband I C 1101 transmission/receptions., use antenna change-over switch 1114 herein, carry out transmission/reception to use a plurality of antennas.
The charging control circuit 1116 that comprises battery is installed the expansion remote unit so as portability, as power supply be used to operate the LCD power supply booster circuit 1117 of LCD panel 1107 and be used to control the power supply of baseband I C 1101 and the power supply/reset circuit 1118 of replacement.And, for to the expansion remote unit battery charge and charging terminal 1115 is installed.
Figure 18 is the view that the profile of outdoor location 2a is shown.
Provide on the front surface of outdoor location 2a: be used for camera 1201 that the visitor is set to picture signal, be used to carry out and the microphone 1202 and the loud speaker 1203 of visitor's conversation and the call button 1204 that is used for sending visitors' arrival to indoor set 2b and cordless telephone remote unit 4.
Figure 19 shows the profile of indoor set 2b.
Provide on the front surface of outdoor location 2b: be used to be incident upon the visitor on the outdoor location 2a image LCD panel 1020, key matrix switch 1018 and be used for showing the LED1017 that arrives via lamp.
Figure 20 and 21 is views that the profile of cordless telephone remote unit 4 is shown.
Cordless telephone remote unit among Fig. 2 mainly is used as the remote unit of indoor set 2b, and the cordless telephone remote unit among Figure 21 also can be carried out the transmission from the cordless telephone remote unit.
Cordless telephone remote unit 4 is portable.The front surface of cordless telephone remote unit provides: be used to be incident upon the visitor on the outdoor location 2a image LCD panel 1107, key matrix switch 1109 and be used for showing the LED 1108 that arrives via lamp.And, be provided for realizing microphone 1110 and loud speaker 1111 with visitor's conversation of outdoor location 2a.
In the cordless telephone remote unit of Figure 20, might use the 1109 response incoming calls of key matrix switch.In the cordless telephone remote unit of Figure 21, also might use the key matrix input and send telephone number.
Figure 22 is the view that the profile of cordless telephone base unit is shown.Utilize guidance panel 1202 to carry out and realize transmission and the operation that incoming call is responded, and on LCD panel 1201, show state corresponding to this operation.And, can use telephone receiver 1203 to realize conversation.
According to this structure, the visitor can use outdoor location 2a and indoor user to engage in the dialogue.The image of outdoor location can output to indoor user by also be connected to the cordless telephone remote unit 4 of cordless telephone base unit 3 via the indoor set 2b with intercom system interface 1001.And, might engage in the dialogue by outdoor location 2a and cordless telephone remote unit 4.Therefore, can produce these advantages: indoor user can be used cordless telephone remote unit 4 when holding cordless telephone remote unit 4, and at waiting time cordless telephone remote unit 4 is moved or be placed on a place easily.
Although illustrated that above the present invention is not limited among this embodiment according to embodiments of the invention.
Although example has been described in an embodiment, wherein cordless telephone is set to main website and intercom system and is set to time main website, and cordless telephone and intercom system can be set to time main website and main main website respectively.
In addition, though the intercom system base unit conduct time main website of an intercom system only is provided in this embodiment,, for example, in house, also can provide at least 2 intercom systems with 2 doors.In this case, provide main website at least 2 times.For each the subsynchronous time slot that prevents to be used to send control data overlapped, by in the sending time slots except that main synchronization slot, distributing subsynchronous time slot to each time main website, therefore, wireless remote unit can with main website and all inferior master station communications.
In addition, although only provide a wireless remote unit in an embodiment, also can provide a plurality of wireless remote units as slave station.
And, although illustrated in an embodiment as the wireless remote unit of slave station and carried out from as the cordless telephone of main website and the reception of intercom system, also can carry out to only they one of the operation of wait.For example, intercom system is used as time main website with deciding main website at cordless telephone, and wireless remote unit only receives main synchronization slot and receives the control signal of cordless telephone, and under the situation of the calling of generation intercom system, send the notice of the calling of intercom system to cordless telephone via intercom system, and the notice of sending the calling of intercom system at main synchronization slot by intercom system, like this, with with this embodiment in identical mode, send the notice of the calling of intercom system to the wireless remote unit that only receives main synchronization slot.Only receive subsynchronous time slot with decide main website and intercom system as time main website, wireless remote unit and receive the control signal of intercom system and produce under the situation of incoming call at cordless telephone, similarly, cordless telephone is in main synchronization slot broadcasting outside line incoming call, and when when main synchronization slot receives the broadcasting of outside line incoming call, intercom system is in subsynchronous time slot broadcasting outside line incoming call, like this, with with this embodiment in identical mode, send the notice of outside line incoming call to the wireless remote unit that only receives subsynchronous time slot.Like this, only receive at wireless remote unit under the situation of a synchronization slot, send the notice of calling (calling of outside line incoming call or intercom system) at waiting time from main website from other synchronization slot.In wireless remote unit, under the situation of execution to the operation response of this calling, receive other control signal in the wireless remote unit slave station receiving slot at one end, and directly set up Radio Link, thereby realize operation response with call source.
And the present invention is widely used in using in the wireless communication system of two main websites.For example, the present invention also can be applied to have a plurality of same wireless equipment and be different from cordless telephone and the structure of the radio communication device of intercom system (as WLAN) in, in described a plurality of same wireless equipment, one of two cordless telephone remote units are with the main website of deciding, and another is as time main website.
Radio telephone has been described and be used to carry out and be connected to order wire the telephone pedestal unit radio communication and with the method for wireless communication of the telephone remote unit of the radio communication of realization and telephone pedestal unit.Comprise that by use first time slot is to the communication frame right with second time slot, and with telephone pedestal unit and telephone remote unit communication, wherein, first time slot is to having the time slot of early arranging that successively decreases that is used for from this telephone pedestal unit received signal on time reference line, and be used for to this telephone pedestal unit send signal on time reference line later layout increase progressively time slot, second time slot is to having the time slot of early arranging that successively decreases that is used for sending to this telephone remote unit data on time reference line, and be used for receiving from this telephone remote unit data on time reference line later layout increase progressively time slot.Be shared as in the telephone remote unit under the situation of remote unit of telephone pedestal unit and radio communication device, at this moment, can send data and need not to compete to the telephone remote unit from the communication remote unit with the telephone pedestal unit.
Embodiments of the invention will be summarized as following item.
Radio communication device comprises following assembly.
Radio communication device comprises:
At least one time main website, be used for the synchronization slot of the predetermined time slot that will become a plurality of sending time slots that send control data from main website, receiving control data, and, this synchronization slot is synchronous with the mode and the main website of the time-division multiple access (TDMA) be made up of receiving slot and sending time slots, and is used for where necessary sending control data by being provided with not with the overlapping time slot of this synchronization slot as time slot; And
Slave station, it can be via receiving slot and the sending time slots synchronous with main website, with main website and at least one time master station communication,
Wherein, when when main website receives control data, slave station is waited for the control data from inferior main website according to the time location of the synchronization slot that receives control data in receiving slot.
And, comprise following assembly according to the wireless communication system of another embodiment.
Wireless communication system, it is made up of cordless telephone and Wireless Internal Communications System, and cordless telephone and Wireless Internal Communications System comprise the radio communication device that is used to carry out the radio communication between main website and the slave station,
Wherein, the main website of cordless telephone has the transmission part that is used to send wireless signal, be used to the control section that receives the receiving unit of wireless signal and be used to control single unit system,
The main website of Wireless Internal Communications System has the transmission part that is used to send wireless signal, be used to the control section that receives the receiving unit of wireless signal and be used to control single unit system, and
Carry out control by this way: the main website of cordless telephone or the main website of Wireless Internal Communications System are used as main website, with the radio communication of execution with the slave station of himself, and another is as time main website (it uses the slave station of the main website of deciding), with the radio communication of execution with main website, and, inferior main website is used as main website, to carry out and himself the communicating by letter of slave station.
And, comprise following assembly according to the wireless communication system of other embodiment.
Wireless communication system, it is made up of cordless telephone and Wireless Internal Communications System, and cordless telephone and Wireless Internal Communications System comprise the radio communication device of carrying out the radio communication between main website and the slave station,
Wherein, the main website of cordless telephone has the transmission part that is used to send wireless signal, be used to the control section that receives the receiving unit of wireless signal and be used to control single unit system,
The main website of Wireless Internal Communications System has the transmission part that is used to send wireless signal, be used to the control section that receives the receiving unit of wireless signal and be used to control single unit system, and
Have the transmission part that is used to send wireless signal, be used to the control section that receives the receiving unit of wireless signal and be used to control single unit system as the slave station of the slave station of the main website of the main website of cordless telephone and Wireless Internal Communications System, and
Carry out control by this way: the main website of cordless telephone or the main website of Wireless Internal Communications System are used as the main website of radio communication of slave station that is used to carry out with himself, and another is with acting on the inferior main website (it use the slave station of decide main website) of execution with the radio communication of main website, and inferior main website is used as main website to carry out and himself the communicating by letter of slave station, and slave station is carried out radio communication as the slave station of the main website of the main website of cordless telephone and Wireless Internal Communications System.
The application based on and 2005-174607 number and 2005-191426 number the priority of submitting on June 30th, 2005 requiring Japanese patent application to submit on June 15th, 2005, all its contents merge at this by reference.
The industry practicality
According to the present invention, inferior main website carries out the operation of main website and the operation of slave station, thereby can be via wireless Signal interconnects wireless phone, Wireless Internal Communications System and wireless remote unit, cause having reduced by The deterioration of the conversation quality that causes in the shortage of air interference and wireless resource. Therefore, the present invention to by The radio communication system that wireless phone and Wireless Internal Communications System consist of is suitable, wherein at this In the radio communication system master station and follow station with the time division multiplexing mode carry out communication.

Claims (14)

1. radio communication device comprises:
Wireless communication unit is used to carry out and will be connected to the radio communication of the telephone pedestal unit of communication line, and the radio communication of execution and telephone remote unit, and wherein, this telephone remote unit is used to carry out the radio communication with this telephone pedestal unit;
Communication component is connected to the communication remote unit; And
Control assembly, comprise that by use first time slot is to the communication frame right with second time slot, and with telephone pedestal unit and telephone remote unit communication, wherein, first time slot is to having the time slot of early arranging that successively decreases that is used for from this telephone pedestal unit received signal on time reference line, and be used for to this telephone pedestal unit send signal on time reference line later layout increase progressively time slot, second time slot is to having the time slot of early arranging that successively decreases that is used for sending to this telephone remote unit data on time reference line, and be used for receiving from this telephone remote unit data on time reference line later layout increase progressively time slot.
2. radio communication device as claimed in claim 1, wherein this control assembly is by the right time slot that successively decreases of first time slot, the transmission of communication frame is begun regularly synchronous with the synchronizing signal that receives from the telephone pedestal unit, executive communication thus.
3. radio communication device as claimed in claim 1, wherein this communication remote unit is the intercom system remote unit with call button, and when pressing call button, this intercom system remote unit sends call signal to this communication component.
4. radio communication device as claimed in claim 1, wherein this communication remote unit is the intercom system remote unit with call button, when call button is pressed, the intercom system remote unit sends call signal to communication component, and this control assembly is by right the successively decreasing time slot and send this call signal to the telephone remote unit of second time slot.
5. radio communication device as claimed in claim 1, wherein this communication remote unit is the remote unit with intercom system of call button, when call button is pressed, the intercom system remote unit sends call signal to communication component, and this control assembly is by right the increasing progressively time slot and send this call signal to the telephone pedestal unit of first time slot.
6. radio communication device as claimed in claim 1 also comprises the conversation control assembly that is connected to the second communication circuit different with this communication line and is used for carrying out by the second communication circuit conversation,
This control assembly uses the voice signal that receives from the conversation control assembly, so that send the right time slot that successively decreases of second time slot to the telephone remote unit.
7. radio communication device as claimed in claim 6, wherein when detecting from incoming call that the second communication circuit sends, the conversation control assembly sends incoming signal by the right time slot that successively decreases of second time slot.
8. radio communication device as claimed in claim 2 wherein is directed to the reception of the synchronizing signal that is sent out by the right time slot that successively decreases of first time slot, and control assembly uses the right time slot that successively decreases of second time slot, carries out the control that is used for reducing transmission frequency.
9. radio communication device as claimed in claim 4, wherein this telephone remote unit is a plurality of telephone remotes unit, and,
The call signal that is sent out by the right time slot that successively decreases of second time slot comprises the information that is used to discern the telephone remote unit, and when while during the called telephone remote unit, the information setting that control assembly will be used to discern the telephone remote unit is to have predetermined value.
10. radio communication device as claimed in claim 9, wherein comprise the information that is used to discern the telephone pedestal unit by the right call signal that time slot is sent out that increases progressively of first time slot, and, when calling out this remote unit and this telephone pedestal unit simultaneously, the information setting that control assembly will be used to discern the telephone pedestal unit is to have predetermined value.
11. radio communication device as claimed in claim 3, wherein this intercom system remote unit comprises the camera that is used for photographic images,
This wireless remote unit comprises the display part, and,
The call signal that is sent out by the right time slot that successively decreases of second time slot comprises by the captured image information of intercom system remote unit, and the telephone remote unit shows this image.
12. radio communication device as claimed in claim 3, wherein this intercom system remote unit comprises the camera that is used for photographic images,
This cordless base unit comprises the display part, and,
Increase progressively the call signal that time slot be sent out right by first time slot comprises by the captured image information of intercom system remote unit, and the telephone pedestal unit shows this image.
13. a radio communication device comprises:
Wireless communication unit is used to carry out and will be connected to the radio communication of the telephone pedestal unit of communication line, and the radio communication of execution and telephone remote unit, and wherein, this telephone remote unit is used to carry out the radio communication with this telephone pedestal unit;
Communication component is connected to the communication remote unit; And
Control assembly, comprise that by use first time slot is to the communication frame right with second time slot, and with telephone pedestal unit and telephone remote unit communication, wherein, first time slot is to having the time slot that successively decreases of later layout on time reference line that is used for from this telephone pedestal unit received signal, and be used for to this telephone pedestal unit send signal on time reference line, early arrange increase progressively time slot, second time slot is to having the time slot that successively decreases of later layout on time reference line that is used for sending to this telephone remote unit data, and be used for receiving from this telephone remote unit data on time reference line, early arrange increase progressively time slot.
14. radio communication device as claimed in claim 1 wherein is comprised in the right time slot and be comprised in the right time slot that increases progressively of second time slot in the second communication frame after first communication frame to be taken as the time slot that will be used for this telephone remote unit communication right of successively decreasing of second time slot in first communication frame.
CN 200680021595 2005-06-15 2006-06-15 System for connecting cordless telephones to door telephones Pending CN101199191A (en)

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JP2005174607A JP2006352411A (en) 2005-06-15 2005-06-15 Radio communication system and communication method thereof
JP174607/2005 2005-06-15
JP191426/2005 2005-06-30

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JP5800670B2 (en) * 2011-10-19 2015-10-28 アイホン株式会社 Intercom base unit and intercom system
JP7270226B2 (en) * 2018-10-17 2023-05-10 パナソニックＩｐマネジメント株式会社 wireless communication system
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JPH11136373A (en) * 1997-10-28 1999-05-21 Murata Mach Ltd Cordless doorphone system

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CN106921851A (en) * 2015-12-24 2017-07-04 松下知识产权经营株式会社 Call gate system and communication control method
CN106921851B (en) * 2015-12-24 2020-03-31 松下知识产权经营株式会社 Door phone system and communication control method
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CN108736924B (en) * 2017-04-24 2021-10-15 株式会社东芝 Communication relay system and method

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