JP2011172437A - Communication apparatus, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the degree of effect on a communication as much as possible in case of a power reception even when the reception of a power is not stopped. <P>SOLUTION: A communication apparatus (a cellular phone) 1 selects whether or not the power is received with a prescribed frequency (a current channel) or received with another frequency (another channel) different from the current channel on the basis of the degree of influence on a reception during the power reception from a power feeder (non-contact type charging equipment) 2. Consequently, the degree of influence on the reception due to power reception (resulting from charging noises or the like) can be suppressed even when the reception (charging) of the power is not stopped. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a communication device and a program capable of communicating information at any of a plurality of frequencies.

In general, as a charging device for charging a communication device such as a mobile phone having a receiving function (for example, a telephone function), a non-contact charging method (non-contact charging method), for example, an electromagnetic induction method is used. Since the metal electrode is not required, it is possible to secure a waterproof and dustproof structure, there is no danger of short-circuiting, and there is no need to worry about the orientation of the communication device (terminal device). However, there is a problem that noise generated during the charging operation adversely affects a received signal such as a call function and lowers the reception sensitivity.
Therefore, conventionally, a mobile phone in which the operation of the charging circuit is stopped during a call is disclosed (see Patent Document 1). In addition, there is a technique in which the operation of a part or all of the charging circuit is stopped at the time of reception while charging the communication device (terminal device, portable wireless device), for example, during reception operation (waiting circuit operation). It is disclosed (see Patent Document 2).

Japanese Patent Laid-Open No. 06-181799 JP 2008-131812 A

  However, in each of the above-described prior arts, by stopping charging during a call, it is possible to prevent the reception sensitivity from being lowered due to the occurrence of noise (for example, power supply ripple noise, high frequency noise, etc.) due to the charging operation. However, if the charging operation is stopped in consideration of the influence on reception, there arises a problem that the charging time becomes long.

  An object of the present invention is to enable the degree of influence on communication at the time of power reception to be suppressed as much as possible without stopping power reception.

In order to solve the above-described problem, the invention described in claim 1
A power receiving means for receiving power supplied by the power supply device;
When the communication means capable of communicating information at any of a plurality of types of frequencies and the communication means communicates information at a predetermined frequency that is one of the plurality of types of frequencies, the power receiving means that is receiving power is A discriminating unit for discriminating the degree of influence on the communication on the communication unit;
Based on the degree of influence determined by the determining means, communication selecting means for selecting whether to communicate information at the predetermined frequency or to communicate information at a different frequency from the predetermined frequency;
It is characterized by providing.

As an invention dependent on claim 1,
The determining means determines the degree of influence on communication when communicating at the predetermined frequency, and determines the degree of influence on communication when communicating at another frequency specified on the information transmission side. , Compare their impact levels,
The communication selection means selects whether to communicate information at the predetermined frequency or information at a different frequency from the predetermined frequency based on the comparison result by the determination means.
The invention according to claim 2, which is configured as described above.

As an invention dependent on claim 1,
Further comprising a transmission means for requesting the information transmission side to transmit information at a different frequency from the predetermined frequency,
The invention according to claim 3 may be provided.

As an invention dependent on claim 3,
When it is determined by the determination means that the influence on communication when communicating at the predetermined frequency is greater than a predetermined level, the transmission means transmits information to the transmission side at the other frequency. Request what to do,
The invention according to claim 4 may be provided.

As an invention dependent on claim 3,
When transmission at another frequency requested by the transmission means is impossible to be assigned at the transmission side, the communication selection means selects communication of information at the predetermined frequency.
The invention according to claim 5 is characterized in that it is configured as described above.

As an invention dependent on claim 3,
And further comprising a stopping means for stopping power reception by the power receiving means when transmission on another frequency requested by the transmitting means is impossible to be assigned on the transmitting side.
The invention according to claim 6 is characterized in that it is configured as described above.

As an invention dependent on claim 3,
The transmission means repeats a switching request that information should be transmitted at a different frequency to the transmission side a plurality of times,
The discriminating unit discriminates the degree of influence on communication when communicating at the predetermined frequency, and also determines a plurality of different types specified by the transmitting side of the information in response to a plurality of switching requests by the transmitting unit. Determine the impact on the communication for each frequency, compare their impact,
The communication selection means selects a frequency at which information is communicated based on each comparison result by the determination means.
The invention according to claim 7 is characterized by being configured as described above.

As an invention dependent on claim 1,
Corresponding to each of a plurality of types of frequencies, further comprising storage means for preliminarily storing the degree of influence on the communication means that the power reception means receiving power has on the communication means,
The determining means determines an influence degree on communication when communicating at the predetermined frequency based on each influence degree stored in the storage means.
The invention according to claim 8 is characterized by being configured as described above.

As an invention dependent on claim 1,
Detecting means for detecting a state of power reception by the power receiving means;
The determining means determines the degree of influence on the communication that the power receiving means receiving power has on the communication means when the power receiving state is detected by the detecting means;
The invention according to claim 9 is characterized by being configured as described above.

As an invention dependent on claim 1,
The communication means communicates predetermined information intermittently,
The invention according to claim 10 is characterized by being configured as described above.

As an invention dependent on claim 1,
The predetermined information is paging channel information transmitted at a frequency assigned in mobile communication.
The invention according to claim 11 may be provided.

In order to solve the above-mentioned problem, the invention according to claim 12
Against the computer,
A function of receiving power supplied by the power supply device, a function of communicating information on any of a plurality of frequencies,
When communicating information at a predetermined frequency that is one of the multiple types of frequencies, a function of determining the degree of influence on the communication due to power reception during power reception;
A function for selecting whether to communicate information at the predetermined frequency or to communicate information at a different frequency from the predetermined frequency, based on the determined degree of influence on communication;
It is a program for realizing.

  According to the present invention, it is possible to suppress the degree of influence on communication at the time of power reception as much as possible without stopping power reception, and it is possible to receive power while ensuring good communication.

1 is an external view showing a communication device (mobile phone) 1 and a power supply device (contactless charging device) 2 for charging the communication device 1. The block diagram which showed the basic component of the communication apparatus 1 and the electric power supply apparatus 2. FIG. (1) is an influence table TB, (2) is a diagram for explaining a setting table PT. 3 is a flowchart showing an outline of the overall operation of the communication device 1. 6 is a flowchart for explaining the capture process (step A3 in FIG. 4) in detail. 6 is a flowchart for explaining search processing (step B8 in FIG. 5) in detail. 5 is a flowchart for explaining the selection process A (step A12 in FIG. 4) in detail. 6 is a flowchart for explaining the selection process B (step A13 in FIG. 4) in detail. A flow chart showing an outline of the operation of the captured base station 3 side. The figure which showed the modification of embodiment and showed the case where the electric power supply apparatus 2 was used as the wired charging device (AC adapter).

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 1 is an external view showing a communication device (mobile phone) and a power supply device (contactless charging device) that charges the communication device.
In FIG. 1, a communication device 1 is a mobile phone that uses a secondary battery (for example, a lithium battery) as a power source, and has a call function, an Internet connection function (Web access function), an e-mail function, etc. When connected to another mobile phone (not shown) through (not shown in FIG. 1), it becomes possible to make a call with this other mobile phone (not shown), and via a wireless communication network. When connected to the Internet (not shown), it is possible to send and receive e-mails and to browse web pages.

  The power supply device 2 is a non-contact charging device that charges the communication device 1 by a non-contact charging method (non-contact charging method), for example, an electromagnetic induction method, and the power cable 3 is connected to a commercial power source (not shown). Connected through. When charging the secondary battery in the communication device 1, the user places the communication device 1 on the power supply device 2 when connecting the communication device 1 to the power supply device 2. Note that the power supply device 2 is not limited to being connected to a commercial power supply via the power cable 3, but may be connected to an external device (such as a personal computer or an audiovisual device) not shown. A display screen DP is disposed on the front surface of the power supply device 2, and a power switch PW and a charge start switch ST are disposed. Moreover, the upper surface part of the electric power supply apparatus 2 becomes a mounting surface to which the communication device 1 is connected (mounted), and a charging primary coil CL1 is embedded below the mounting surface.

FIG. 2 is a block diagram illustrating basic components of the communication device 1 and the power supply device 2.
The communication device 1 has a central control unit 11 as a core, and the central control unit 11 operates by supplying power from the power supply unit 12, and the mobile phone 1 is configured according to various programs in the storage unit 13. The central control unit 11 is provided with a CPU (Central Processing Unit), a memory, and the like. The power supply unit 12 supplies a drive voltage to each component of the communication device 1 and includes a secondary coil for charging (power receiving unit) CL2 and a secondary battery BT by an electromagnetic induction method. In a state where the power supply device 2 is connected (placed), the secondary battery BT is charged via the charging secondary coil CL2.

  The storage unit 13 is an internal memory such as a ROM or a RAM, and has a program area and a data area (not shown). This program area is implemented according to the operation procedure shown in FIGS. A program for realizing the form is stored. Further, in the data area of the storage unit 13, as various information necessary for the operation of the mobile phone 2, for example, a capture flag CF indicating whether or not the base station 3 is newly captured, the searched base station 3 There is a work area in which a base station counter P for counting the number, a number counter i for counting the number of times the captured base station 3 requests channel switching, and the like are temporarily stored.

  The data area of the storage unit 13 is provided with a base station list BL that stores a list of neighboring base stations received from the captured base station 3, an influence degree table TB, a setting table PT, and the like, which will be described later. Note that the storage unit 13 may include a removable portable memory (recording medium) such as an SD card or an IC card, or may be on a predetermined external server (not shown). The application process related unit 14 stores an address book, e-mail information, Web information, and the like as information related to application processes such as a call function, an e-mail function, and an Internet connection function.

  The wireless communication unit 15 can receive information at any of a plurality of types of frequencies (channels: ch), and can accommodate, for example, up to five channels. The wireless communication unit 15 includes a wireless unit, a baseband unit, a demultiplexing unit, and the like (not shown). For example, the wireless communication unit 15 can communicate with the nearest base station 3 during a call function, an electronic mail function, an Internet connection function, or the like. Data is transmitted and received. When a call function is operated, a signal is taken from the receiving side of the baseband unit, demodulated into a received baseband signal, and output to the central control unit 11. The central control unit 11 Voice is output from the speaker SP for call through the processing unit 16, and input voice data from the microphone for call MC is taken in from the voice signal processing unit 16, encoded into a transmission baseband signal, and then transmitted to the baseband unit. And output from the antenna AN. Each base station 3 is capable of switching a plurality of types of channels described above, and assigns a new channel in response to a channel switching request from the communication device 1.

  The display unit 17 uses high-definition liquid crystal or organic EL, and displays, for example, a standby image, an icon, date and time information, text data, mail, a web page, and the like. Although the display unit 17 is a display unit provided in the mobile phone 1, it may be any external display device such as an external monitor. The operation unit 18 inputs dial input, character input, command input, and the like, and includes a power key, an on-hook key, an off-hook key, and the like. The central control unit 11 responds to an input operation signal from the operation unit 18. Execute the process. The timing unit 19 measures date and time information, and generates various timing signals (for example, capture timing and intermittent reception timing described later).

  On the other hand, the power supply device 2 has the charge control unit 21 as a core, and the charge control unit 21 controls the entire operation of the power supply device 2 according to various programs in the storage unit 22. And a central processing unit and a memory (not shown). The storage unit 22 is an internal memory such as a ROM or a RAM, and has a program area and a data area (not shown). The power supply circuit unit 23 performs charging with the communication device 1 by a contactless charging method (electromagnetic induction method) in a state in which the communication device 1 is connected (placed). It has CL1. In addition, the display unit 24 has the display screen DP shown in FIG. 1, and the operation unit 25 has the power switch PW and the charge start switch ST shown in FIG.

FIG. 3 is a diagram for explaining the influence degree table TB and the setting table PT.
As shown in FIG. 3 (1), the influence degree table TB corresponds to each of a plurality of types of frequencies (channels), and is a received signal in the wireless communication unit 15 due to noise generated during power reception (during charging). The degree of influence on the reception (communication) of how much adverse influence is received is stored, and the degree of influence differs for each channel. That is, among the multiple types of channels, there are channels that are easily affected by noise generated during charging, and channels that are not easily affected, and the degree of influence differs for each channel. The “degree of influence” is stored, and “frequency”, “influence degree”, and “remarks” are stored.

  “Frequency” is information (for example, channel number) indicating a plurality of types (for example, five types) of channels, such as “f1”, “f2”, “f3”, and the like. The “influence degree” indicates an influence degree on reception (communication) of how much adverse influence is exerted on the reception signal in the wireless communication unit 15 due to noise generated during charging for each channel. “E1” as “influence” corresponding to “e2”, “e2” as “influence” corresponding to “f2”, “e3” as “influence” corresponding to “f3”, and the like. In addition, it is shown that the larger the “influence” value is, the more likely it is to be adversely affected by noise generated during charging.

  “Remarks” is for explaining the contents of “impact degree”. For example, “e1” of “impact degree” is relative to a reference value (e0) for determining the quality of the reception state (communication state). , E1 <e0 (threshold), indicating that the channel has a small or no influence on reception (communication) due to noise generated during charging. In addition, “e2” in the “influence” means that e2 ≧ e0 (threshold), and the influence on reception (communication) due to noise generated during charging is large and charging is in progress. Indicates that the channel is inappropriate.

  As illustrated in FIG. 3B, the setting table PT includes a selection setting F1 and a power reception stop setting F2 as information that can be arbitrarily set by a user operation. This selection setting F1 indicates that a channel different from the currently assigned channel (current channel) should be switched in order to select a channel that is less affected by noise generated during charging among a plurality of types of channels. This information indicates whether or not the selection process required for the base station 3 is to be executed and how many times the channel switching request is to be made when the selection process is executed.

  Here, in the selection setting F1 in FIG. 3 (2), “None” in the figure indicates that the selection process is not executed, “Yes” indicates that the selection process is executed, and “N” indicates that The number of switching requests is shown. The power reception stop setting F2 determines whether or not to stop power reception (charging) when a channel switching request is made to the nearest base station 3 and the switching request is rejected from the base station 3. In the figure, “None” indicates that power reception (charging) is not stopped, and “Yes” indicates that power reception (charging) is stopped.

  Next, the operation concept of the mobile phone 1 in this embodiment will be described with reference to the flowcharts shown in FIGS. Here, each function described in these flowcharts is stored in the form of a readable program code, and operations according to the program code are sequentially executed. Further, it is possible to sequentially execute the operation according to the above-described program code transmitted via a transmission medium such as a network. In other words, in addition to the recording medium, an operation unique to the present embodiment can be executed using a program / data supplied externally via a transmission medium.

FIG. 4 is a flowchart showing an overview of the overall operation of the communication device 1.
First, when a power-on operation is performed by the power key of the operation unit 18 (YES in step A1), the central control unit 11 of the communication device 1 starts power supply from the power supply unit 12 to each unit and a predetermined memory. After performing the power-on process such as clearing and initializing (Step A2), the process proceeds to a capturing process for capturing radio waves from the nearest base station 3 (Step A3). In addition, in this acquisition process, the process which registers the present position of the communication apparatus 1 with respect to the acquired base station 3 is also performed.

FIG. 5 is a flowchart for explaining the capture process (step A3 in FIG. 4) in detail.
First, the central control unit 11 first sets the capture flag CF to its initial value “0” to indicate that the radio wave from the base station 3 is not captured (step B1), and then It is checked whether the station 3 is being acquired, that is, whether communication is already established (step B2). Here, if capturing (communication) (YES in step B2), the base station 3 that is capturing (communication) is subsequently selected as a communication target (step B4), but is capturing (communication). If not (NO in step B2), for example, when communication is interrupted immediately after the power is turned on or due to movement of the communication device 1 or the like, the base station 3 when the power was last turned off or the base when the previous communication was interrupted The station 3, that is, the base station 3 captured last time is selected as a communication target (step B5).

  Then, it is checked whether the base station 3 selected as described above is in a standby (communication enabled) state based on the radio wave condition or the like (step B6). Here, the stand-by state means a state in which the radio wave condition with the base station 3 is good and a call from the communication device 1 can be made in addition to an incoming call from the base station 3. In a state of being able to stand by (YES in step B6), the acquisition flag CF is set to “1” (step B7) to indicate that the base station 3 has already been successfully acquired (step B7). The flow ends. On the other hand, if it is not in a standby state (NO in step B6), the radio wave condition with the selected base station 3 is bad and communication is unstable or impossible, so that the base station 3 that can stand by is available. The process proceeds to a search process for searching for (step B8).

FIG. 6 is a flowchart for explaining the search process (step B8 in FIG. 5) in detail.
First, the central control unit 11 sets the value of the base station counter P to the initial value “1” (step C1), and then sets the base station 3 in the base station list BL specified by the value of the base station counter P to the base station 3. Then, communication connection is performed, and as a result, it is checked whether or not it has become a standby state based on whether or not the connection was successful (step C2). Note that the base station list BL is a base station list for handover or roaming, in which information on a plurality of base stations 3 existing in the vicinity is stored, and a plurality of base stations 3 are determined according to the value of the base station counter P. Are sequentially specified one by one.

  If it is not possible to stand by with the designated base station 3 (NO in step C2), an increment that updates the value by adding "1" to the value of the base station counter P. After processing (step C3), it is checked whether the value of the base station counter P has reached the total number of base stations M (step C4). Here, the total number of base stations M means the number of base stations stored in the base station list BL. Now, assuming that the value of the total number of base stations M is “5” and the value of the base station counter P is “2” (P> M) (NO in step C4), whether or not the above-described standby is possible. Return to step C2 to check whether or not. Thereafter, until the value of the base station counter P exceeds the total number of base stations M (YES in step C4), the operation of checking whether it is possible to wait while updating the value of the base station counter P is repeated (steps C2 to C4). .

  As a result, when the base station 3 that can stand by can be detected before the value of the base station counter P exceeds the total number of base stations M (YES in step C2), the capture flag CF is set. If it is set to “1” (step C6) and the standby base station 3 cannot be detected even if the value of the base station counter P exceeds the total number of base stations M (NO in step C4), the capture is performed. After the flag CF is set to “0” (step C6), the flow of FIG. 6 is exited. In the search process shown in FIG. 5 as described above, when a base station 3 that can stand by is detected for the sake of simplicity of explanation, the base station 3 is selected as a communication target. When the station 3 can stand by, the base station 3 having the optimum radio wave condition may be selected as a communication target.

  When such a capture process is completed (step A3 in FIG. 4), it is checked whether the capture has succeeded with reference to the capture flag CF (step A4). If the capture flag CF is “0”, that is, if capture is unsuccessful (NO in step A4), out-of-service notification (notification) is performed as a reception state failure display (step A5). Then, it is checked whether or not the capture timing at which the above-described capture processing is repeatedly executed at regular time intervals has been reached (step A6). If it is the capture timing (YES in step A6), the process returns to the above-described capture process (step A3).

  As a result of the above acquisition processing (step A3), when the acquisition flag CF is “1”, that is, when acquisition is successful (YES in step A4), the channel of the base station 3 acquired last time (previous channel) and the base acquired this time By comparing with the channel of the station 3 (predetermined channel: current channel), the presence or absence of the change is checked (step A7). That is, it is checked whether the current channel and the previous channel are different channels or the same channel. Note that since there is no previous channel at the time of the first acquisition, it is determined that there is a change.

  If the current channel is the same as the previous channel, the channel has not been changed (NO in step A7), and the process proceeds to step A14 for detecting the presence / absence of incoming information (paging channel information). If the channel is different from the previous channel, the channel has been changed (YES in step A7), and after storing the current channel as a newly assigned predetermined channel (step A8), By starting the intermittent reception operation described above, a standby state is established in which a supplementary call from the base station 3 can be received (step A9).

  Then, with reference to the selection setting F1 of the setting table PT, it is checked whether or not the selection process is executed based on “present” / “not present” (step A10). The process skips all of the selection process A (step A12) and the selection process B (step A13), which will be described later, and proceeds to step A14 for detecting whether or not there is an incoming call. If the setting content of the selection setting F1 is “Yes” (YES in Step A10), the selection setting F1 is further referred to, and whether or not the number of times of switching is 1 is checked based on the “N” (Step S10). A11) If the number of times of switching is 1, that is, N = 1 (YES in step A11), the selection process A is executed (step A12), but if the number of times of switching is plural (NO in step A11). ), The process proceeds to the execution of the selection process A (step A13).

FIG. 7 is a flowchart for explaining the selection process A (step A12 in FIG. 4) in detail.
First, the central control unit 11 checks whether it is connected to the power supply device 2 from the state of the power supply unit 12 (step D1), and if not connected to the power supply device 2 (NO in step D1), FIG. However, if it is connected to the power supply device 2 (YES in step D1), it detects the power reception state and is receiving power (charging). (Step D2).

  If it is connected to the power supply device 2 but is not charging (NO in step D2), the flow of FIG. 7 is exited and reception on the current channel is continued as it is. In step D4, the “degree of influence” corresponding to the current channel is read with reference to the degree of influence table TB. For example, in the specific example shown in FIG. 3A, if the current channel is “f1”, “e1” is read as the “influence”, and if “f2”, “e2” is used as the “influence”. Is read.

  Then, the “influence level” corresponding to the read current channel is determined (step D4), and the “influence level” is not less than a predetermined value (is greater than a predetermined level), that is, the influence level on reception is determined. It is checked whether or not the judgment reference value (e0) is exceeded (step D5). Now, assuming that the “influence” corresponding to the current channel is “e1”, for example, if e1 <e0, the “influence” is less than a predetermined value (NO in step D5). It is determined that the channel is a good channel with little influence on the reception due to noise generated during charging, and the flow of FIG. 7 is exited, and reception on the current channel is continued as it is. Further, when the “influence” corresponding to the current channel is set to “e2”, for example, if the relationship of e2 ≧ e0 is satisfied, the “influence” is equal to or greater than a predetermined value (YES in step D5). It is determined that the channel is a bad channel that greatly affects reception due to noise generated during charging, and a channel switching request is transmitted to the captured base station 3 (step D6).

Here, the operation on the base station 3 side that has received the channel switching request from the communication device 1 will be described. FIG. 9 is a flowchart showing an outline of the operation on the captured base station 3 side.
First, the base station 3 checks whether or not a channel switching request has been received from the communication device 1 (step F1). If no switching request is received (NO in step F1), the base station 3 proceeds to step F5 described later. When a request is received (YES in step F1), the presence / absence of an empty channel is checked (step F2).

  In this case, it is checked whether another channel different from the current channel is an empty channel (an unassigned channel). If there is no corresponding empty channel (NO in step F2), an assignment of another channel different from the current channel is performed. In order to indicate that the request is not possible, an NG response that denies the switching request is transmitted to the requesting communication device 1 (step F4). If there is an empty channel (YES in step F2), the request source Together with an OK response for affirming the switching request to the communication device 1, information indicating the empty channel (for example, channel number) is transmitted as information indicating another channel to be newly allocated (step F <b> 3).

  The communication device 1 checks whether or not an OK response confirming the channel switching request has been received from the captured base station 3 (step D7 in FIG. 7), and when receiving an NG response that denies the channel switching request (NO in step D7). ) With reference to the power reception stop setting F2, it is determined whether or not there is a setting for stopping power reception (charging) (step D8). If the setting content of the power reception stop setting F2 is “none” (NO in step D8), the power reception (charging) is not stopped and the flow of FIG. If the setting content of the power reception stop setting F2 is “present” (YES in step D8), the power reception (charging) is stopped (step D9), and then the flow of FIG. Continue receiving on the channel.

  Further, when the communication device 1 receives information (for example, channel number) indicating another channel together with an OK response for affirming the channel switching request from the captured base station 3 (YES in step D7), the information indicating the other channel Referring to the influence level table TB based on the above, the “influence level” corresponding to the other channel is read (step D10). Then, the “influence degree” of the current channel is compared with the “influence degree” of another channel (step D11), and it is checked whether the “influence degree” of the other channel is equal to or less than the “influence degree” of the current channel (step S11). D12). If the “influence” of another channel exceeds the “influence” of the current channel, that is, if the current channel has less influence on reception (NO in step D12), the flow of FIG. If the “influence level” of another channel is less than or equal to the “influence level” of the current channel, that is, if the influence level on the reception of the other channel is smaller ( In step D12, YES, it is selected to receive on this other channel (step D13), and a notification to receive on this selected channel is transmitted to the capturing base station 3 (step D14).

  Here, the operation on the base station 3 side that has received the selection channel notification from the communication device 1 will be described. Upon receiving the selected channel notification from the communication device 1 on the base station 3 side (step F5 in FIG. 9), after transmitting a decision to newly allocate the selected channel to the communication device 1 (step F6), The state is switched to the state of transmission on the selected channel (step F7).

  On the communication device 1 side, after the selected channel is notified to the base station 3 captured as described above, the communication device 1 enters a channel determination reception waiting state (step D15 in FIG. 7). In this reception waiting state, when a channel decision is received from the base station 3 (YES in step D15), the decision channel (selected channel) is set in a standby state where it can be received as the current channel (step D16). The flow ends.

FIG. 8 is a flowchart for explaining the selection process B (step A13 in FIG. 4) in detail.
First, the central control unit 11 detects whether it is connected to the power supply device 2 from the state of the power supply unit 12 (step E1), and if it is not connected to the power supply device 2, exits from the flow of FIG. The reception on the current channel is continued as it is, but if it is connected to the power supply device 2 (YES in step E1), the power reception state is detected to check whether the power is being received (charging) (step). E2). If power is not being received (charging) even if connected to the power supply device 2 (NO in step E2), the flow of FIG. 8 is exited and reception on the current channel is continued. If it is medium (charging) (YES in step E2), the number counter i is set to its initial value “1” (step E3), and then the process moves to a process of requesting another channel assignment N times different from the current channel. (Steps E4 to E8).

  First, in step E4, a channel switching request is transmitted to the base station 3 being captured as the i-th request indicated by the value of the number counter i. In this case, on the base station 3 side that is being acquired, an OK response that affirms the channel switching request is transmitted or an NG response that denies the channel switching request based on whether or not another channel different from the current channel can be allocated. (Steps F1 to F4 in FIG. 9). Here, when the communication device 1 receives an NG response that denies the channel switching request from the base station 3 being captured (NO in step E5 in FIG. 8), thereafter, the communication device 1 requests N times to allocate another channel ( Steps E4 to E8) are skipped, but when an OK response confirming the channel switching request is received from the capturing base station 3 (YES in Step E5 in FIG. 8), the i-th time indicated by the value of the number counter i After temporarily storing another channel (fi) newly allocated in response to the request (step E6), increment processing is performed to update the value by adding “1” to the value of the number counter i (step E7). ).

  Then, it is checked whether the value of the number counter i exceeds the channel switching request number “N” set in the selection setting F1 (step E8). Note that the channel switching request count “N” is arbitrarily set by the user operation as described above. If the value of the count counter i does not exceed “N” (NO in step E8). ), The process returns to step E4 for transmitting the above-described channel switching request, and the above-described operation is repeated thereafter (steps E4 to E8).

  Here, when the value of the number counter i exceeds “N” (YES in step E8), this is a case where the allocation request for another channel has been completed N times, and the process proceeds to the next step E9 described later. Also, when an NG response is received from the base station 3 being captured before the value of the number counter i exceeds “N” (NO in step E5), processing for requesting allocation of another channel is performed. Then, in order to stop at that time (in the middle), the process proceeds to the next step E9, referring to the influence table TB, the “influence” corresponding to the current channel and the “influence” corresponding to another channel assigned by the switching request. Read "degree". Then, the “influence” of the current channel is compared with the “influence” of another channel (step E10), and the channel having the smallest “influence” among the channels including the current channel and the other channel is compared. The reception is selected (step E11), and a notification to be received on the selected channel is transmitted to the capturing base station 3 (step E12).

  In this case, on the base station 3 side, when the selected channel notification is received from the communication device 1 (step F5 in FIG. 9), a decision to newly allocate the selected channel is transmitted to the communication device 1 (step S5). F6), and switches to the state of transmission on the selected channel (step F7).

  After the communication device 1 side notifies the selected channel to the base station 3 captured as described above, it enters a channel determination reception waiting state (step E13 in FIG. 8). In this reception waiting state, when a channel determination is received from the base station 3 being captured (YES in step E13), after the determination channel (selected channel) is set in a standby state in which reception is possible (step E14), The flow in FIG. 8 ends.

  When the selection process A (step A12 in FIG. 4) or the selection process B (step A13) is completed in this way, whether predetermined information has been received from the base station 3 being acquired on the currently allocated channel, that is, Then, it is checked whether incoming information (paging channel information) has been received (step A14). When it is detected that there is an incoming call (YES in step A14), it is checked whether an off-hook operation has been performed (step A15), or a line from the other party It is checked whether the termination of the incoming call due to blocking or the like has been detected (step A16). When an off-hook operation is performed (YES in step A15), call processing is started in response thereto (step A17), and it is checked whether the end of the call due to an on-hook operation is detected (step A18). The process returns to step A17 described above until the end is detected, and the call processing is continued.

  When the end of the incoming call is detected (YES in step A16) or when the end of the call is detected (YES in step A18), intermittent reception is performed to intermittently perform the operation of detecting whether or not the incoming information (paging channel information) is received. It is checked whether the operation is off timing (step A19). For example, if the intermittent reception cycle for receiving this incoming information is set at an interval of about 5 sec and the on timing of the intermittent reception is about 50 msec, it is checked whether the timing is other than the on timing, and the intermittent reception must be at the off timing. If it is the intermittent reception ON timing, that is, the process proceeds to the above-described step A14 for detecting the presence or absence of the incoming call, but if it is the intermittent reception OFF timing (YES in Step A19), After the operation of the wireless communication unit 15 is stopped as an off process (step A20), the process waits until the intermittent reception is turned on (step A21).

  If it is the ON timing of intermittent reception (YES in step A21), after the operation of the wireless communication unit 15 is started as an ON process of the receiving circuit (step A22), the value is referred to by referring to the capture flag CF. It is checked whether it is “0” (step A23). If the capture flag CF is “0” (YES in step A23), the process returns to the above-described capture process (step A3). If the capture flag CF is “1” (NO in step A23), there is a possibility that another channel different from the current channel may be assigned, so the process returns to step A7 for detecting the change of the channel, Thereafter, the above operation is repeated.

  If there is no incoming call (NO in step A14), the process proceeds to step A24 for detecting presence / absence of a user operation. This step A24 detects whether or not a user operation has been performed when it is not the capture timing as described above (NO in step A6), as well as when there is no incoming call, and if no user operation is performed. (NO in step A24), referring to the capture flag CF, it is checked whether the value is “0” (step A28). If the capture flag CF is “0” (YES in step A28), the process returns to step A6 for detecting the capture timing described above.

  When any user operation is performed (YES in step A24), it is checked whether it is a power-off operation (step A25). If it is a power-off operation (YES in step A25), a power-off process is performed. After (step A26), the flow of FIG. When another operation is performed (NO in step A25), for example, a transmission process is performed as a process corresponding to the operation (step A27). Then, the process proceeds to step A28 described above, and it is checked whether the capture flag CF is “0”. If the capture flag CF is “0” (YES in step A28), the process returns to step A6 for detecting the capture timing described above. However, if the capture flag CF is “1” (NO in step A28), the process returns to step A19 for detecting the above-described intermittent reception off timing, and the above-described operation is repeated thereafter.

  As described above, in this embodiment, the communication device 1 communicates at a predetermined frequency (current channel) or current channel based on the degree of influence on communication (reception) during power reception from the power supply device 2. Since it has been selected whether to communicate at a different frequency (different channel) different from, it is possible to suppress the influence on the communication at the time of power reception (charging) as much as possible without stopping the power reception It is possible to receive (charge) power while ensuring good communication.

  The communication device 1 selects whether to communicate with the current channel or another channel based on the comparison result between the influence level in the current channel and the influence degree in the other channel designated on the base station 3 side. As a result, a channel having a smaller influence degree can be selected, and good communication can be ensured.

  Since the communication device 1 requests the base station 3 to transmit information on a different channel different from the current channel, the communication device 1 can be switched to a channel that may have a low influence level. Secure reception can be ensured.

  When it is determined that the degree of influence on the current channel is greater than a predetermined level, the base station 3 is requested to transmit information on another channel. This makes it possible to request switching to the switch, and it is not necessary to perform a useless operation, which is effective for power saving.

  Since the communication device 1 selects communication on the current channel when transmission on another channel cannot be assigned on the base station 3 side, in the situation on the base station 3 side, If transmission is not possible, communication on the current channel can be continued as it is, and a minimum communication state can be maintained.

  The communication device 1 stops receiving power (stops charging) when transmission on another channel cannot be assigned on the base station 3 side. A communication state can be secured.

  The communication device 1 compares the degree of influence on the current channel with the degree of influence for each of a plurality of types of different channels designated on the base station 3 side in response to a plurality of channel switching requests. Since the channel having a low influence level can be selected from a plurality of types of channels including the current channel, charging can be performed while securing the best communication.

  Since the communication device 1 determines the influence level in the current channel with reference to the influence degree table TB, it is only necessary to read the influence degree from the influence degree table TB, and the influence degree can be obtained instantaneously.

  Since the communication device 1 determines the degree of influence on communication when detecting the state of power reception, for example, it can determine the degree of influence on communication when detecting the start of power reception. Power consumption can be reduced.

  Since the communication device 1 intermittently performs the operation of detecting the presence / absence of reception of predetermined information (paging channel information), the power consumption of the communication function can be suppressed.

  Since the predetermined information is paging channel information (incoming information) transmitted from the base station 3 using a channel assigned in mobile communication, it can be suitably used for a mobile phone using mobile communication technology.

  In the above-described embodiment, the case where the paging channel information (incoming information) is received from the base station 3 is exemplified. However, in the case where another communication device (cellular phone) is called (transmitted) from the communication device 1. Even if it exists, it is applicable similarly.

  In the embodiment described above, the power supply device 2 is applied to a contactless charging device that charges the communication device 1 by a non-contact charging method (electromagnetic induction method), and the communication device 1 is placed on the upper surface thereof. However, the present invention is not limited to such a placement type, and may be an approach type charging device that charges the communication device 1 in a state where the communication device 1 is approached.

  In the above-described embodiment, the communication device 1 is placed on the power supply device 2 (contactless connection: magnetic coupling), but the communication device 1 and the power supply device 2 are electrically connected. It may be. That is, the power supply device 2 may be a wired charging device (for example, an AC adapter) as shown in FIG. In this case, the communication device 1 is provided with a jack portion (not shown) to which the plug portion 2a of the power supply device 2 is connected.

  Moreover, although the case where the non-contact charge system was employ | adopted between the communication apparatus 1 and the electric power supply apparatus 2 was illustrated in embodiment mentioned above, the electric field, the magnetic field, magnetic resonance, or those combinations were utilized. You may make it receive supply electric power by an electric power supply system. In other words, the non-contact charging method may be a radio wave reception method, an electric field / magnetic field resonance method, or an electromagnetic induction method, a radio wave reception method, an electric field / magnetic field resonance method, or a combination thereof.

  In the above-described embodiment, the communication device 1 charges the secondary battery BT in the power supply unit 12 based on the power supplied from the power supply device 2, but the stabilized power circuit ( A supply voltage (DC voltage) from (not shown) may be directly taken in as a drive voltage. That is, the receipt of power is not limited to charging.

  In the embodiment described above, the communication device 1 captures one base station 3, but may capture a plurality of (for example, three) base stations 3 simultaneously. In this case, when a plurality of base stations 3 are captured, a channel having the least influence is selected from channels different for each base station 3 except for a channel whose reception sensitivity is reduced due to noise caused by the charging operation. May be received.

  In the above-described embodiment, a mobile phone is exemplified as the communication device 1. However, the present invention is not limited thereto, and may be a digital camera with a communication function, a PDA, a personal computer, or the like, and is arbitrary.

  Furthermore, the “apparatus” and “machine” shown in each of the above-described embodiments may be separated into a plurality of cases according to function, and are not limited to a single case. In addition, each step described in the above-described flowchart is not limited to time-series processing, and a plurality of steps may be processed in parallel or separately.

DESCRIPTION OF SYMBOLS 1 Communication apparatus 2 Power supply device 3 Base station 11 Central control part 12 Power supply part 13 Memory | storage part 14 Wireless communication part 17 Operation part 19 Timekeeping part BT Secondary battery CL1 Primary coil for charge CL2 Secondary coil for charge (electric power reception part)
TB influence table PT setting table F1 selection setting F2 power reception stop setting

Claims (12)

A power receiving means for receiving power supplied by the power supply device;
A communication means capable of communicating information at any of a plurality of types of frequencies;
A discriminating unit that discriminates an influence on the communication unit that the power receiving unit receiving power has on the communication unit when the communication unit communicates information at a predetermined frequency that is one of the plurality of types of frequencies; ,
Based on the degree of influence determined by the determining means, communication selecting means for selecting whether to communicate information at the predetermined frequency or to communicate information at a different frequency from the predetermined frequency;
A communication device comprising: The determining means determines the degree of influence on communication when communicating at the predetermined frequency, and determines the degree of influence on communication when communicating at another frequency specified on the information transmission side. , Compare their impact levels,
The communication selection means selects whether to communicate information at the predetermined frequency or information at a different frequency from the predetermined frequency based on the comparison result by the determination means.
The communication device according to claim 1, wherein the communication device is configured as described above. Further comprising a transmission means for requesting the information transmission side to transmit information at a different frequency from the predetermined frequency,
The communication device according to claim 1, wherein the communication device is configured as described above. When it is determined by the determination means that the influence on communication when communicating at the predetermined frequency is greater than a predetermined level, the transmission means transmits information to the transmission side at the other frequency. Request what to do,
The communication device according to claim 3, wherein the communication device is configured as described above. When transmission at another frequency requested by the transmission means is impossible to be assigned at the transmission side, the communication selection means selects communication of information at the predetermined frequency.
The communication device according to claim 3, wherein the communication device is configured as described above. And further comprising a stopping means for stopping power reception by the power receiving means when transmission on another frequency requested by the transmitting means is impossible to be assigned on the transmitting side.
The communication device according to claim 3, wherein the communication device is configured as described above. The transmission means repeats a switching request that information should be transmitted at a different frequency to the transmission side a plurality of times,
The discriminating unit discriminates the degree of influence on communication when communicating at the predetermined frequency, and also determines a plurality of different types specified by the transmitting side of the information in response to a plurality of switching requests by the transmitting unit. Determine the impact on the communication for each frequency, compare their impact,
The communication selection means selects a frequency at which information is communicated based on each comparison result by the determination means.
The communication device according to claim 3, wherein the communication device is configured as described above. Corresponding to each of a plurality of types of frequencies, further comprising storage means for preliminarily storing the degree of influence on the communication means that the power reception means receiving power has on the communication means,
The determining means determines an influence degree on communication when communicating at the predetermined frequency based on each influence degree stored in the storage means.
The communication device according to claim 1, wherein the communication device is configured as described above. Detecting means for detecting a state of power reception by the power receiving means;
The determining means determines the degree of influence on the communication that the power receiving means receiving power has on the communication means when the power receiving state is detected by the detecting means;
The communication device according to claim 1, wherein the communication device is configured as described above. The communication means communicates predetermined information intermittently,
The communication device according to claim 1, wherein the communication device is configured as described above. The predetermined information is paging channel information transmitted at a frequency assigned in mobile communication.
The communication device according to claim 1. Against the computer,
A function of receiving power supplied by a power supply device;
The ability to communicate information on any of multiple frequencies,
When communicating information at a predetermined frequency that is one of the multiple types of frequencies, a function of determining the degree of influence on the communication due to power reception during power reception;
A function for selecting whether to communicate information at the predetermined frequency or to communicate information at a different frequency from the predetermined frequency, based on the determined degree of influence on communication;
A program to realize

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