JP3264569B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus having a polling reception function, and more particularly to a facsimile apparatus for automatically discriminating between polling reception and normal reception without an operation of an operator.

[0002]

2. Description of the Related Art A facsimile apparatus is a transmission apparatus capable of transmitting and receiving a document, a drawing, and the like as image information with a remote place using a public line or the like.

As a conventional facsimile apparatus, a facsimile apparatus having a polling reception function has been put to practical use. The polling reception function is a function for receiving a document set on the transmission side set in advance by the operation of the reception side. For the G3 facsimile apparatus, it is recommended that the International Telegraph and Telephone Consultative Committee (CCITT) recommendation T.30. It is defined as 30 standard functions.

The polling reception function is a function of transmitting a digital identification signal DIS from a called station in a facsimile signal transmission procedure.
Is transmitted, the calling station switches to the transmitting operation by transmitting a command signal DTC instructing the called station to transmit the document contents to the called station, and the calling station switches to the transmitting operation in advance. It is possible to receive the original contents of the called station set.

However, in a conventional facsimile apparatus having a polling reception function, its operation / input unit is
In addition to the button for performing the normal reception function, a button for setting the polling reception function is provided. When performing the polling reception, the operator operates the button for setting the polling reception function, and the facsimile apparatus performs the polling reception function. Was working.

The polling function is described in, for example, Japanese Patent Application Laid-Open No. 61-13870.

[0007]

In the above-mentioned prior art, a button for setting the polling reception function is required in the operation / input section, so that the number of parts of the facsimile apparatus increases. Further, the operator has to operate this button to set the polling reception function every time polling reception is performed, and there is a problem that the operation is troublesome.

Therefore, the present invention eliminates the button for setting the polling reception function, and automatically switches between the polling reception operation and the normal transmission / reception operation only by the button for starting communication without the setting operation by the operator. It is an object of the present invention to provide a facsimile apparatus having the same.

[0009]

In order to achieve the above object, according to the present invention, the start of communication is designated by an external operation.
Operating means to be displayed and the transmission line from the partner facsimile machine
Whether a facsimile signal is being sent via
Detecting means for detecting the facsimile,
Out of the facsimile signal from the
A second signal for detecting whether the predetermined signal has been transmitted.
Detecting means and first receiving means for performing polling receiving operation
And a second receiver performing a receiving operation other than polling reception
And whether the operation mode is the reception mode or the transmission mode.
Mode determining means for determining whether or not
And a measuring means.

[0010]

When the communication means is instructed by the operation means,
In this case, the operation mode is determined by the mode determination means.
And a facsimile signal by the first detecting means.
Detect whether or not is sent,

As a result of the detection by the first detecting means,
It is detected that a facsimile signal is being sent
In that case, the facsimile signal will not be sent
And start time measurement by the time measurement means
And that the facsimile signal has not been sent.
If detected, the time is immediately measured by the time measuring means.
Start measuring between

The mode discrimination means determines the operation mode.
Another result, if it is determined that the reception mode, the
Whether the predetermined signal has been sent by the second detection means
Is detected, and the result of the detection by the second detecting means is determined.
As a result, from the start of time measurement by the time measurement means,
The predetermined signal is transmitted until a predetermined time elapses.
If the first reception is detected, the first reception
Means for performing a polling reception operation, and
If it is detected that was not sent,
Reception operation other than polling reception by the second receiving means
I do.

Thus, it is possible to automatically switch between polling reception and normal transmission / reception (hereinafter, this is called automatic polling) without any special operation by the operator.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments.

FIG. 1 is a block diagram showing a facsimile apparatus as a first embodiment of the present invention. In FIG.
101 is a reading unit for reading a transmission original, 102 is a system control unit for controlling the entire facsimile machine, 103 is a printing unit for recording and outputting a reception original, and 104 is for inputting input keys and telephone numbers for starting transmission and reception. Operation / input section consisting of numeric keys, various mode input keys, etc.
A display unit 105 includes various display devices such as a liquid crystal display, and 106.
Is a communication control unit for controlling a transmission procedure, 107 is a modem for executing predetermined modulation / demodulation processing, 108 is a network control unit for controlling connection with a telephone line, 109 is a timer unit for measuring time, and 110 is a transmission mode. Alternatively, a mode detection unit 111 for detecting the reception mode is a telephone unit used for a telephone call.

In the case of a facsimile apparatus having a clock function, the timer section 109 may use the clock. In that case, means for calculating the elapsed time from the set time is required.

Before describing the operation of FIG. 1, first, how a general transmission procedure of the G3 facsimile apparatus and a conventional transmission procedure of polling reception are performed will be described with reference to FIGS. 2 and 3. FIG. I do.

FIG. 2 shows CCITT Recommendation T. G according to 30
FIG. 7 is a sequence diagram illustrating a general transmission procedure of a three-facsimile apparatus. In FIG. 2, both the calling station and the called station are in the manual mode, and the calling station is the receiving side and the called station is the transmitting side.

As shown in FIG. 2, when the start buttons are pushed to each other for communication, the receiving station transmits a called station identification signal CED to the transmitting station, and then the terminal transmits the CCITT signal.
A frame signal (hereinafter referred to as an NSF / CSI / DIS frame) comprising a signal NSF indicating that a non-standard function is provided, a called subscriber identification signal CSI, and a signal DIS indicating that the CCITT standard function is provided. Signal)
Send The transmitting station is NSF / CSI / D from the receiving station
When the IS frame signal is received, a frame signal (hereinafter referred to as TS) comprising a transmitting terminal identification signal TSI, a non-standard function setting signal NSS, and a digital command signal DCS is sent to the receiving station.
I / NSS / DCS frame signal), and then transmits a training check signal TCF. If the training check signal TCF has no error and is normally received, the receiving station sends a reception preparation signal CF to the transmitting station.
Send R. Upon detecting the CFR, the transmitting station transmits a message signal (specifically, a manuscript) MESS. If there is no original to be sent next, the transmitting station sends a procedure end signal E.
Send OP. After detecting the procedure end signal EOP, the receiving station sends a message confirmation signal MCF to the transmitting station if the message signal MESS is normally received. When the transmitting station receives the message confirmation signal MCF, it transmits a disconnection signal DCN to the receiving station and ends the transmission. When the receiving station receives the disconnection signal DCN, the reception ends. Facsimile communication is performed according to the above procedure. In FIG. 2, NSF, CSI,
TSI and NSS are option signals.

FIG. 3 shows CCITT Recommendation T.30. FIG. 10 is a sequence diagram showing a conventional transmission procedure when a calling station performs a polling reception operation according to 30.

As shown in FIG. 3, when a calling station originates a call, the called station automatically receives a signal, transmits a CED signal to the calling station, and then transmits an NSF / CSI / DIS frame signal. Here, when the calling station performs an operation to start polling reception, the calling station receives NSF / CSI / D from the called station.
After receiving the IS frame signal, a signal N, which is a digital command response to the information contained in the signal NSF, is sent to the called station.
SC, a calling terminal identification signal CIG, and a frame signal (hereinafter referred to as NSC · C) composed of a signal DTC which is a digital command response to the standard function identified by the DIS signal.
IG / DTC frame signal). Signal D
TC is a signal for instructing the destination facsimile apparatus to transmit the document contents to the facsimile apparatus. If the called station has a transmission function by polling,
When the C signal is received, the operation switches to the transmission operation. If the mobile terminal does not have the polling transmission function, the procedure goes to the procedure for disconnecting the line. When the called station, which is a facsimile apparatus having a polling transmission function, receives the DTC signal, it sends a TSI / NSS / DCS frame signal to the calling station. The called station becomes the transmitting station, and the procedure is the same as in FIG. In FIG. 3, NSF, CSI, NSC,
CIG, NSS, and TSI are option signals.

Next, an example of the operation / input section and the polling reception operation of the conventional facsimile apparatus having the polling reception function will be described. How these are performed by the facsimile apparatus having the automatic polling reception function shown in FIG. Explain whether it can be improved.

FIG. 4 is an explanatory diagram schematically showing an example of an operation / input section of a conventional facsimile apparatus having a polling reception function. 4, reference numeral 400 denotes an operation / input unit; 401, a start button for instructing start of operation of the facsimile apparatus; 402, a stop button for instructing stop of operation of the facsimile apparatus; and 403, polling for setting and canceling a polling reception function. Button.

In the case of FIG. 4, if the start button 401 is pressed while the polling button 403 is set, the facsimile apparatus performs a polling reception operation. When the start button 401 is pressed in a state where the polling button 403 is released, the facsimile apparatus detects the operation mode by the mode detection unit, performs normal reception when in the reception mode, and performs normal reception when in the transmission mode. Perform normal transmission.

The operation / input section of the conventional facsimile apparatus having a polling reception function is provided with a button dedicated to polling reception having both a polling button and a start button in addition to the example shown in FIG. There is also a method of performing a polling reception operation. As described above, the conventional facsimile apparatus having the polling reception function has a dedicated button for setting the polling reception function in addition to the button for normal transmission and reception, and the polling operation is set by the operation of the operator.

FIG. 5 is an explanatory diagram schematically showing an example of the operation / input section 104 in FIG. In FIG. 5, 1
04 is an operation / input unit, 501 is a start button for instructing start of facsimile operation, and 502 is a stop button for instructing stop of operation of the facsimile machine. The operation / input unit 104 may be provided with other operation keys such as a numeric keypad and a mode input key. However, the operation / input unit 104 is not directly related to the present invention, and thus the description is omitted.

In the facsimile apparatus shown in FIG. 1, when the start button 501 is pressed, the mode detecting section 110 detects an operation mode. When the operation mode is the reception mode, the timer unit 109 starts measuring time, and the system control unit 102 transmits a predetermined signal from the partner facsimile apparatus via the modem 107 within a predetermined time, that is, a CE signal.
It detects whether a D signal or an NSF / CSI / DIS frame signal is transmitted. System control unit 10
2 judges the operation based on the detection results.

That is, when the operation mode is the transmission mode, a normal transmission operation is performed. When the operation mode is the reception mode and the CED signal or the NSF / CSI / DIS frame signal is transmitted from the other facsimile apparatus within a predetermined time, the polling reception operation is started and the CED signal or the NSF / CSI・ DIS
If no frame signal has been transmitted, a normal reception operation is started.

As described above, in this embodiment, the button for setting the polling reception function as shown in FIG. 4 is eliminated, and the polling reception is automatically performed only by operating the start button 501 as shown in FIG. Can be.

FIG. 6 is a flow chart showing an example of a procedure for performing automatic polling reception by the facsimile apparatus in FIG. Hereinafter, the operation of FIG. 1 will be described with reference to FIG.

The system control unit 102 includes an operation / input unit 1
04 start button is pressed (S
601), if pressed, resets the timer unit 109 (S602). Next, the system control unit 102 determines whether the facsimile apparatus is in the transmission mode or the reception mode by the mode detection unit 110 (S603). The mode is determined, for example, by the reading unit 1
When a document is set in the reading unit 101, the mode is determined to be the transmission mode.

If it is determined that the reception mode is selected, the system control unit 102 determines whether or not a CNG signal indicating the transmission side facsimile apparatus is transmitted from the partner facsimile apparatus to the facsimile apparatus. Part 1
08, via the modem 107 and the communication control unit 106 (S604). If the CNG signal has not been transmitted, the system control unit 102 determines whether the CED signal or the NSF / CSI / DIS frame signal is transmitted from the partner facsimile apparatus to the facsimile apparatus. , Communication control unit 106
(S605). If these signals are not transmitted, it is determined whether or not they are transmitted (S6).
04, S605) is continued until a predetermined time TA elapses after the timer unit 9 is reset (S605).
608).

If the CED signal or the NSF / CSI / DIS frame signal is received within the time TA, the communication control unit 106, the modem 107, and the network control unit 10
Then, an NSC / CIG / DTC frame signal is transmitted to the other party facsimile machine via S8 (S606), and polling reception is performed (S607). If the CED signal or the NSF / CSI / DIS frame signal cannot be received within the time TA, the communication control unit 106, the modem 107,
Signal CED and NSF / CSI via network control unit 108
-A DIS frame signal is transmitted to the partner facsimile machine (S609), and a normal reception operation is started (S61).
0).

If the modem 107 detects a CNG signal in step S604, the other party's facsimile apparatus performs a transmitting operation, so that the present facsimile apparatus transmits a CED signal and an NSF / CSI / DIS frame signal to the other party's facsimile apparatus. Then, a normal reception operation is performed (S610).

If the transmission mode is determined in S603, a normal transmission operation is performed (S611).

It should be noted that the CNG signal is detected and determined (S604).
Is not directly related to the automatic polling reception function and is not always necessary. However, in the procedure of S604, when a CNG signal is detected, T> TA (S60
8) Normal reception procedure (S60)
9 and S610), whereby the time required for the communication procedure of the facsimile apparatus can be reduced.

Next, the reset operation of the timer unit 109 shown in the processing S602 of FIG. 6 will be described in detail. The reset operation of the timer unit 109 may be performed immediately when the start button is pressed, or the following procedure may be performed.

FIG. 7 is a flowchart showing an example of the procedure of the reset operation of the timer unit 109 in FIG. In the example of FIG. 7, the start button is pressed (S60 in FIG. 6).
1) When the process proceeds to the reset procedure, first, the system control unit 12 determines whether or not a transmission procedure signal is being received from the facsimile apparatus at that time (CCITT V.21).
Only the presence or absence of a standard modulation signal may be detected via the modem 107 (S701), and if no transmission procedure signal is received, the timer unit 109 is immediately reset (S70).
2). If the transmission procedure signal has been detected, the process waits until the signal disappears (S701), and resets the timer unit 109 (S702).

Next, a specific example of the time TA will be described. CCITT Recommendation T. According to Rule 30, if the facsimile machine needs to send a signal immediately after a call is established, it sends out a CED signal or a CNG signal within 1.8 to 2.5 seconds after the call is established. And transmitting the NSF / CSI / DIS frame signal following the CED signal within 75 ± 20 milliseconds, respectively. In addition, it is specified that, when the CNG signal is continuously transmitted, a signal transmission suspension period of 3 seconds is provided. If a response signal from the partner facsimile apparatus to the transmitted NSF / CSI / DIS frame signal is not transmitted within a period of 3 seconds ± 15% immediately after transmitting the NSF / CSI / DIS frame signal, Again, the NSF, CSI,
It is specified to transmit a DIS frame signal.

According to the above rules, when the other party's facsimile apparatus is going to transmit a transmission procedure signal to the present facsimile apparatus while the line call is established, the procedure of FIG. TA may be the total time of the CSI / DIS frame signal and the retransmission interval. Although the length of the NSF / CSI / DIS frame signal varies depending on the device, it is usually about 3 to 4 seconds.
TA may be about 10 seconds. Also, the timer unit 109
When the resetting operation is performed according to the procedure shown in FIG. 7, the partner facsimile apparatus transmits the transmission procedure signal within 3.45 seconds (3 seconds + 15%) at the maximum. In an actual facsimile machine, the delay time of a transmission line is also included. Therefore, taking this time into consideration, TA = 3.45 + α (α
> 0) (seconds). That is, when the reset operation of the timer unit 109 is performed according to the procedure shown in FIG.
The value of A may be practically about 4 seconds. Also, CCI
TT Recommendation T. In a facsimile apparatus that does not conform to the regulation of No. 30, a time longer than the repetition interval time of the NSF / CSI / DIS frame signal or a signal corresponding thereto may be set as TA.

FIG. 8 is a flowchart in which a new procedure is added to the reset operation procedure in FIG. In the procedure of the reset operation shown in FIG. 7, if the operator presses the start button before the call on the line is established, the timer unit 10 is called while the other party's facsimile apparatus is being called.
Since the timer 9 is reset and the timer 109 counts during the calling period, the automatic polling function cannot operate normally. Therefore, in the example of FIG. 8, when the start button is pressed (S601 in FIG. 6) and the process proceeds to the reset procedure (S602 in FIG. 6), first, the system control unit 1
02 detects via the modem 107 whether or not the other party's facsimile machine has gone off-hook. If off-hook, the process proceeds to the next step, and if not, it waits until it goes off-hook (S801). The following procedure is the same as S701 and S702 in FIG. Detection of whether the other party's facsimile machine goes off-hook (S8)
01), for example, if a ringing tone (ringback tone) is detected, it is determined that the other party facsimile apparatus is not off-hook, and if no ringing tone is detected, it is determined that the other party facsimile apparatus is off-hook. Alternatively, it can be detected by detecting the polarity reversal of the line.

The detection of off-hook can also be performed by the following procedure. FIG. 9 is a flowchart in which the off-hook detection procedure is changed from the automatic polling procedure of FIGS. 6 and 8. In FIG. 9, it is detected whether or not the other party's facsimile machine has gone off-hook before the start button of the operation / input unit 104 is pressed, and the result is stored in a flag or the like. When the operator starts calling the other party's facsimile machine, the system control unit 102 sets the flag to 0 (process 901). Then, it is detected via the modem 107 whether or not the other party's facsimile machine has gone off-hook (S902). If the other party's facsimile machine has gone off-hook, the flag is set to 1 (S903). next,
The system control unit 102 detects whether the start button has been pressed through the operation / input unit 104 (S90).
4) If the start button is not pressed, off-hook detection is performed again (S902). When the start button is pressed, the system control unit 102 determines whether the value of the flag is 1 or 0 (S905). If the flag is 0, that is, if the other party's facsimile apparatus has not yet been off-hook, it waits until the other party's facsimile apparatus goes off-hook (S907), and resets the timer unit 109 when off-hook (S908).
If the flag is not 0, that is, if the other party's facsimile apparatus is already off-hook, the modem 1 determines whether a transmission procedure signal has been received from the other party's facsimile apparatus.
07 (S906), and resets the timer unit 109 immediately if there is no transmission procedure signal (S9).
08). If the transmission procedure signal has been detected, the process waits until the signal disappears (S906), and resets the timer unit 109 (S908). The following procedure is performed in S60 of FIG.
It is the same as 3 and later. Further, the value of TA when the procedure of FIG. 9 is used may be the same value as that in the case of using FIGS. 7 and 8.

Next, a facsimile transmission procedure of the facsimile apparatus in FIG. 1 will be described. FIG. 10 is a sequence diagram showing an example of a facsimile transmission procedure when the facsimile apparatus in FIG. 1 performs an automatic polling reception operation. In FIG. 10, the calling station is the facsimile machine,
The called station is the other party's facsimile machine. In the example of FIG. 10, no original is set in the facsimile machine, and the facsimile machine is in the reception mode. The other facsimile machine operates in the automatic reception mode and has a polling transmission function.

As shown in FIG. 10, when the calling station calls the called station, the other party's facsimile apparatus automatically starts the receiving operation, and the other party's facsimile apparatus sends a CED signal and NSF / CSI / A DIS frame signal is transmitted. In this facsimile apparatus, when the operator presses the start button while listening to these signals as voice (S601), the timer unit 109 is reset (S602), and the timer unit 109 starts the time measurement operation, and the other party's facsimile. Start signal detection from the device. Note that, in the procedure of the reset operation in FIG. 7 or FIG.
When the start button is pressed in the middle of the SI / DIS frame signal, the timer unit 109 is reset when the first NSF / CSI / DIS frame signal ends.

Thereafter, within a time TA (for example, 4 seconds), N
When the SF / CSI / DIS frame signal is received, the NSC / CIG / DTC frame signal is transmitted (S606), and the polling reception operation is performed (S60).
7). The other facsimile machine is NSC / CIG / DTC
When the frame signal is received, the operation mode is switched to the transmission mode, the TSI / NSS / DCS frame signal is transmitted to the facsimile apparatus, and the polling transmission operation is started. Hereinafter, the facsimile apparatus performs a polling reception operation according to a facsimile transmission procedure.

FIG. 11 is a sequence diagram showing an example of a facsimile transmission procedure when the facsimile apparatus shown in FIG. 1 performs a normal manual reception operation. In FIG.
The calling station is the facsimile machine, and the called station is the partner facsimile machine. In the example of FIG. 11, no original is set on the facsimile machine, the apparatus is set in the reception mode, and the partner facsimile apparatus operates in the transmission mode.

As shown in FIG. 11, after the calling station originates a call to the called station and the call is established, the other party's facsimile apparatus starts a transmission operation and the CED signal and the NSF / CSI Enter a state of waiting for a DIS frame signal to be transmitted. On the other hand, in this facsimile machine,
When the start button is pressed (S601), the timer 10
Nine copies are reset (S602), and the operation mode is determined to be the reception mode (S603). Then, a CED signal, an NSF / CSI / DIS frame signal and a CNG signal from the other party facsimile machine are detected. However, since the other party's facsimile apparatus is in a state of detecting the transmission procedure signal from the present facsimile apparatus, no transmission procedure signal is sent to the present facsimile apparatus. Therefore, when TA seconds have elapsed (S608), the facsimile apparatus ends the detection of the transmission procedure signal (S604 and S605), transmits the CED signal, and subsequently continues the NSF / CSI / DI
An S frame signal is transmitted (S609), and a receiving operation is started (S610). The partner facsimile apparatus receives the CED signal from this facsimile apparatus and the NSF / CSI / D
TSI / NSS / DCS when IS frame signal is received
A frame signal is transmitted, and a transmission operation is performed according to a facsimile transmission procedure.

If the other facsimile apparatus has a function of transmitting a CNG signal, the other facsimile apparatus transmits a CNG signal. The operation is stopped, and the normal reception operation is immediately executed.

In the examples of FIGS. 6, 7, 8, and 9,
Although the start button of the operation / input unit 104 serves both for transmission and reception, a start button for transmission and a transmission button for reception may be separately prepared. In this case, it is determined whether the operation mode of the facsimile apparatus is the reception mode or the transmission mode (S603).
When the transmission start button is pressed, it is determined that the transmission mode is set, and when the reception start button is pressed, it is determined that the reception mode is set.

FIG. 12 is a block diagram showing a facsimile apparatus as a second embodiment of the present invention.

In FIG. 12, reference numeral 1201 denotes a scanner for reading a transmission original; 1202, a CPU (Central Processing Unit) for controlling the entire facsimile apparatus; 1203, a printer for recording and outputting a received original; 1204, a start button; An operation / input unit including buttons, a numeric keypad for inputting a telephone number of a destination, and various mode input push buttons, etc., 1205, a display unit including various displays such as liquid crystal, and 1207, a modem for executing a predetermined modulation / demodulation process. 1208, an NCU (network control unit) for controlling connection to a telephone line, 1209, a clock also serving as a time measuring device for measuring time, and 1210, whether or not a document is set on the scanner 1201 A sensor 1211 encodes / decodes an image signal. / Decryption unit, 1212 denotes a ROM that contains the system program (read-only
A memory (random access memory) 1213 that is used as a work memory and a buffer memory for storing the time when the clock 1209 is reset and performing various other operations when the clock 1209 is used as a timer; Reference numeral 1214 denotes an image memory for performing memory transmission and memory reception functions, and reference numeral 1215 denotes a telephone unit used for a telephone call.

In the facsimile apparatus shown in FIG.
The CPU 1202 implements the automatic polling function of the flowchart shown in FIG.

The CPU 1202 determines whether the start button has been pressed (S601 or S904) via the operation / input unit 1204.

In this embodiment, since the clock 1209 is used as a means for measuring time, when the timer is reset (S602, S702 or S90).
8) The CPU 1202 writes the time pointed by the clock 1209 to the RAM 1213.

Determination of operation mode (S603 or S8)
04) is performed by the CPU 1202 via the paper feed sensor 1210 and by searching the contents of the image memory 1214. The paper feed sensor 1210 is a scanner 12
CPU 12 determines whether an original is set in the
Tell 02. In addition, the CPU 1202 has a ROM 1212
In accordance with the above program, it is searched whether or not the data of the document is set in the image memory 1214 and whether or not the data of the set document is for transmission. C
When a document is set on the scanner 1201 or when memory transmission is set, the PU 1202 determines that the transmission mode is set. Also, the scanner 1201
If the document is not set in the document and the memory transmission is not set, the reception mode is determined.

Detection of CNG signal (S604), detection of CED signal and NSF / CSI / DIS frame signal (S604)
605) indicates that the CPU 1202 has the modem unit 1207 and the N
This is performed via the CU 1208. The process of detecting a CNG signal (S604) is not always necessary.

The determination of the elapsed time (S608) is performed by the CPU 1
The calculation can be performed by the 202 calculating the elapsed time T from the time in S608 and the time stored in the RAM 1213 and comparing the elapsed time T with the time TA.

Polling reception (S606 and S60)
7) The normal reception (S609 and S610) and the normal transmission (S611) are performed by the CPU 1202 via the modem unit 1207 and the NCU 1208.

As a procedure for resetting the timer, the procedure shown in FIG. 7, FIG. 8, or FIG. 9 can also be used.

FIG. 6, FIG. 7, FIG. 8 or FIG.
When the automatic polling function is realized by the procedure of the above, in the reception mode, the CNG signal, the CED signal, and the NSF / CS
The time TA is used as a period for detecting the I • DIS frame signal.
Is required, and the time required for the transmission procedure of the facsimile apparatus is lengthened by the detection period (time TA). on the other hand,
Polling reception is normally performed when the other party facsimile apparatus is the called station and the other party facsimile apparatus is operating with automatic incoming call.

Therefore, when the facsimile apparatus is the called station, or when the start button of the facsimile apparatus is pressed after a time of about TB = 35 ± 5 seconds elapses after the off-hook of the partner facsimile apparatus. Then, instead of the procedure of the automatic polling function, a normal transmission / reception procedure may be performed. Whether the facsimile apparatus is the called station can be detected by detecting a ringing tone via the NCU 1208, detecting dialing, and the like. The detection of the elapsed time since the other party's facsimile machine went off-hook is detected by a clock 1209.
Can be done via In this way, when you want to send and receive facsimile signals during a call,
The time required for the transmission procedure can be made shorter than the procedure of the automatic polling function. This method can also be applied to the embodiment shown in FIG.

In this embodiment, the clock 1209 is used.
As a time measurement function, a separate dedicated timer device is provided.
This may be used. Further, although the present embodiment has a memory transmission and a memory reception function, this function is not necessarily required for the present invention. The image memory 12
It is not necessary to provide the RAM 14 and the RAM 1213 separately, and they may be shared. In the present embodiment, the image encoding / decoding unit 1211 is provided as a hardware circuit, but this may be processing by software. The operation / input unit 1204 for performing the automatic polling may have the configuration shown in FIG. Further, the start button in the operation / input unit 1204 may be a button that is also used for transmission and reception, or may be a separate button.

[0063]

As described above, according to the present invention,
Polling reception and normal transmission / reception can be automatically identified and executed simply by operating the communication start button. This eliminates the need for a button for setting the polling reception function in the operation / input unit, thereby reducing the number of components of the facsimile machine. Further, the operator does not need to operate the button to set the polling reception function every time the polling reception is performed, so that the operation can be omitted.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a facsimile apparatus as a first embodiment of the present invention.

FIG. 2 shows CCITT Recommendation T. FIG. 3 is a sequence diagram showing a general transmission procedure of a G3 facsimile apparatus according to G.30.

FIG. 3 shows CCITT Recommendation T. FIG. 10 is a sequence diagram showing a conventional transmission procedure when a calling station performs a polling reception operation according to 30.

FIG. 4 is an explanatory diagram schematically showing an example of an operation / input unit of a conventional facsimile apparatus having a polling reception function.

FIG. 5 is an explanatory diagram schematically showing an example of an operation / input unit 104 in FIG. 1;

FIG. 6 is a flowchart illustrating an example of a procedure for performing automatic polling reception by the facsimile machine in FIG. 1;

FIG. 7 is a flowchart showing an example of a procedure of a reset operation of a timer unit 109 in FIG.

FIG. 8 is a flowchart in which a new procedure is added to the procedure of the reset operation in FIG. 7;

9 is a flowchart in which the off-hook detection procedure is changed from the automatic polling procedure in FIGS. 6 and 8. FIG.

FIG. 10 is a sequence diagram showing an example of a facsimile transmission procedure when the facsimile apparatus in FIG. 1 performs an automatic polling reception operation.

FIG. 11 is a sequence diagram showing an example of a facsimile transmission procedure when a normal manual reception operation of the facsimile apparatus in FIG. 1 is performed.

FIG. 12 is a block diagram showing a facsimile apparatus as a second embodiment of the present invention.

[Explanation of symbols]

102: system control unit, 104: operation / input unit, 10
6 communication control unit, 107 modem, 108 network control unit
109: timer section, 110: mode detection section, 501: start button.

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahito Hosoda 1410 Inada, Katsuta-shi, Ibaraki Pref. Information and Media Division, Hitachi, Ltd. (56) References JP-A-5-167822 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/32

Claims (5)

(57) [Claims] 1. An instruction to start communication by an external operation
Operating means, and a transmission line from the partner facsimile machine.
Whether a facsimile signal is being sent
First detecting means for detecting, and the other party facsimile apparatus
From the facsimile signal through the transmission line from
A second detection for detecting whether a predetermined signal has been sent.
Output means and first reception means for performing polling reception operation
And a second receiver performing a receiving operation other than polling reception
And whether the operation mode is the reception mode or the transmission mode.
Mode determining means for determining whether or not
Measuring means, and when there is an instruction to start communication by the operating means,
When the operation mode is determined by the
A facsimile signal is sent by the first detecting means.
The facsimile machine as a result of the detection by the first detecting means.
If it is detected that a signal is being sent,
Wait for the facsimile signal to stop being sent
The time measurement is started by the time measurement means,
When it is detected that no simil signal has been sent
Immediately start time measurement by the time measurement means
And the operation mode of the determination result by said mode discriminating means, receiving
If the communication mode is determined, the second detection
Detecting whether the predetermined signal has been sent by the stage
And, as a result of the detection by the second detection means, the time
At a predetermined time from the start of time measurement by the measuring means
By the time the predetermined signal has been sent,
Is detected by the first receiving means.
Perform the receiving operation and receive the predetermined signal.
If it is detected that there is no
Performing a reception operation other than polling reception depending on the stage
Facsimile machine characterized. 2. An instruction to start communication by an external operation.
Operating means, and a transmission line from the partner facsimile machine.
Whether a facsimile signal is being sent
First detecting means for detecting, and the other party facsimile apparatus
From the facsimile signal through the transmission line from
A second detection for detecting whether a predetermined signal has been sent.
Delivery means and the other party's facsimile machine goes off-hook
Hook detection means for detecting whether
First receiving means for performing the operation, and reception other than polling reception
Second receiving means for performing an operation, and an operation mode being a reception mode
Mode determining means for determining whether the mode is the transmission mode
And time measuring means for measuring time, and it is detected that the off-hook detecting means has gone off-hook.
After being issued, an instruction to start communication is issued by the operation means.
The operation mode is determined by the mode determination means.
Discriminating and facsimile by the first detecting means.
Detects whether a millimeter signal is being sent,
As a result of the detection by the first detecting means, the facsimile signal
Signal is detected to be sent.
Wait until the facsimile signal is no longer sent and
The time measurement is started by the time measurement means, and the facsimile is
If it is detected that no millimeter signal is being sent
Immediately starts time measurement by the time measurement means.
And the off-hook detecting means detects that the user has gone off-hook.
Before this is issued, an instruction to start communication is issued by the operation means.
The operation mode is determined by the mode determination means.
In addition to performing the determination, the off-hook detecting means turns off.
Wait for the hook to be detected, and
Means to start measuring time, and as a result of the operation mode
If the communication mode is determined, the second detection
Detecting whether the predetermined signal has been sent by the stage
And, as a result of the detection by the second detection means, the time
At a predetermined time from the start of time measurement by the measuring means
By the time the predetermined signal has been sent,
Is detected by the first receiving means.
Perform the receiving operation and receive the predetermined signal.
If it is detected that there is no
Performing a reception operation other than polling reception depending on the stage
Facsimile machine characterized. 3. Instructing the start of communication by an external operation
Operating means, and a transmission line from the partner facsimile machine.
A predetermined signal of the facsimile signal is transmitted through
Detecting means for detecting whether or not polling has been received
A first receiving means for performing an operation;
A second receiving means for performing signal operation, the operation mode is received mode
Mode discriminating method for discriminating between mode and transmission mode
And a time measuring means for measuring time.
When a command to start communication is given by the operating means,
When the operation mode is determined by the
Then, time measurement is started by the time measurement means , and the result of the operation mode determination by the mode determination means is received.
Communication mode, the detecting means
To detect whether the predetermined signal has been sent.
The result of the detection by the detection means,
A predetermined time has elapsed since the start of time measurement
By the time, it is detected that the predetermined signal has been sent.
Is received by the first receiving means,
Communication operation, and that the predetermined signal has not been sent.
Is detected by the second receiving means,
Facsimile machine that performs receiving operation other than ringing reception
At the destination facsimile machine via the transmission line.
An incoming call detecting means for detecting whether or not a call is received;
After the call detection means detects that the call has been received,
If there is an instruction to start communication by the operation means,
The operation mode is determined by the mode determination means.
As a result of the operation mode discrimination by the
If it is determined that the time is
The second receiving means without starting the time measurement.
To perform reception operation other than polling reception.
Facsimile machine 4. A facsimile according to claim 1, wherein
The transmission from the other party facsimile machine
An incoming call detector that detects whether a call has been received via a line
A stage is provided to detect that a call is received by the call detection means.
After the communication, an instruction to start communication is
The operation mode is determined by the mode determination means.
The operation mode is determined by the mode determination means.
As a result, if it is determined that the reception mode is set,
Without starting time measurement by the
Reception operation other than polling reception by the second receiving means
Facsimile machine. 5. The facsimile apparatus according to claim 2,
There are, off-hook lower subsidiary by the off-hook detecting means
Is detected by the operating means, the communication start finger is detected.
When indicated, the off-hook detection means
When the off-hook is detected, the time measuring means
Measurement of the time by
From the start of measurement to the predetermined time
The communication means is not instructed by the operating means,
If there is an instruction to start communication after the time has elapsed,
The operation mode is determined by the mode determination means.
As a result of the operation mode discrimination by the
If the second receiving means is determined to be
It features receiving operation other than polling reception.
Facsimile machine.