JPH09312749A - Transmission control system for facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the transmission time of a facsimile equipment provided with a V.34 MODEM function by using an abbreviated protocol without using a V.8 transmission procedure function when it is registered that a V.34 MODEM function is not provided to reception capability parameter information. SOLUTION: A transmitter side makes a call to a receiver side and when the receiver side detects the arrival of an incoming call, the receiver side sends a signal ANSam being a prescribed tone signal subject to amplitude modulation at first to inform start of the V.8 transmission protocol. The receiver side the modulation system such as a type of MODEM to be used or the like and uses a common menu signal JM to inform it to the transmitter side that the MODEM function uses the V.17 MODEM in this case. When the V.8 transmission procedure is finished in this way, the transmitter side sends a start signal WPT being a prescribed tone signal used to inform it that an abbreviated protocol is started. The transmission time of the transmission procedure signal other than image information is considerably reduced and the image information transmission time is remarkably reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission control system for a facsimile machine which can effectively reduce the transmission time.

[0002]

2. Description of the Related Art The transmission procedure applied in the image information transmission in a group 3 facsimile machine is ITU-T standard T.264. No. 30 and an example thereof is shown in FIG.
The number of pages of the transmitted document in this case is "1".

That is, when the transmitting side makes a call to the receiving side and a call is established between the transmitting side and the receiving side, the receiving side gives a predetermined tone for notifying that its own terminal is a non-voice terminal. The called station identification signal CED which is a signal is transmitted, and then
It responds with a called terminal identification signal CSI for displaying its own terminal and a digital identification signal DIS for notifying a standard function equipped in the own terminal.

When the transmitting side receives the digital identification signal DIS, based on the value of the reception capability parameter notified by the digital identification signal DIS, the speed of the modem, etc.
The transmission function used at that time is determined. Then, after transmitting the transmission terminal identification signal TSI for displaying the own terminal and the digital command signal DCS for notifying the transmission function determined at that time, the training check signal TCF is transmitted at the modem speed set at that time. To do.

The receiving side receives the training check signal TCF after setting the transmission function (modem speed etc.) inside the device in response to the digital command signal DCS notified from the transmitting side, and the reception result is good. In this case, the reception preparation confirmation signal CFR is returned.

When the transmission side receives the reception preparation confirmation signal CFR, the transmission side transmits the image information PIX and also transmits the procedure end signal EOP. When the receiving side receives the image information PIX, it records and outputs the received image, and the procedure end signal EOP.
When the message is received, it is checked whether or not the image is normally received. If the image is normally received, the message confirmation signal MCF is returned.

Upon receiving the message confirmation signal MCF, the transmitting side sends a disconnection command signal DCN and then restores the line. Also, the receiving side, when receiving the disconnection command signal DCN, restores the line.

In such a standard transmission procedure (hereinafter referred to as the standard transmission procedure), the training check signal TCF and the image information PIX have a high-speed modem function (for example, V.17 modem, V.29 modem, V.29 modem, 27ter
(For example, a modem or the like), other transmission procedure signals are converted into HDLC frames, and V.V. A 21 second modem function (300 bps) is used for exchange, and a 1-second preamble is added.

Generally, in data transmission such as facsimile communication, there is a demand to further shorten the transmission time. Therefore, as a high speed modem function applied to the transmission of image information, one having a higher transmission speed is applied. Is becoming popular.

As described above, since the transmission speed of the high-speed modem function is extremely high, the data amount of the transmission procedure signal itself is not so large, but the transmission speed is very low, so it occupies the image information transmission time. The ratio of the transmission time of the transmission procedure signal has become very large.

Therefore, as one of the methods for shortening the time required for image information transmission in such a standard transmission procedure, firstly,
Attempts have been made to reduce the transmission time of transmission procedure signals.
As an example thereof, it can be considered to remove the preamble added to the transmission procedure signal. FIG. 11 shows an example of a transmission procedure (hereinafter referred to as a preamble deletion procedure) in this case.
Shown in Since almost half of the transmission time of the transmission procedure signal corresponds to the transmission time of the preamble, the transmission time can be shortened to some extent by this alone. In the transmission procedure shown in the figure, the receiving side uses the non-standard function identification signal NSF for notifying the non-standard function equipped in its own terminal, and the transmitting side supports the non-standard function identification signal NSF. The non-standard function setting signal NSS which is the setting signal of the transmission function is transmitted.

However, the effect of shortening the image information transmission time is small only by such a preamble deletion procedure.

By the way, a facsimile apparatus is normally used continuously to some extent when installed, and its model rarely changes frequently. Therefore, the transmission function applied to the same partner terminal is It is rarely changed frequently, and once changed, the changed transmission function will be used for a while thereafter.

Therefore, in order to shorten the image information transmission time,
The transmitting side stores the content of the receiving capability parameter information notified from the receiving side for each partner terminal, and at the time of the next transmission, sets the transmission function based on the stored receiving capability parameter information. A so-called shortened protocol procedure has been attempted, in which image information transmission is executed by a set transmission function before receiving a transmission procedure signal from the.

An example of this shortened protocol procedure is shown in FIG. In this shortened protocol procedure, a procedure in which the modem training procedure is omitted is applied.

In this case, the receiving side has the called station identification signal CED.
When the sending side detects the called station identification signal CED, it sends a start signal WPT, which is a predetermined tone signal for notifying that the shortened protocol procedure is started, and then receives the reception stored in its own terminal. A non-standard function setting signal NSS for notifying the transmission function set based on the content of the capability parameter is transmitted.

On the receiving side, when the activation signal WPT is detected while the called station identification signal CED is being sent, the sending of the called station identification signal CED is interrupted at that time, and the non-standard function setting signal NS is sent.
When S is received, a reception preparation confirmation signal CFR is sent out.

When the transmitting side confirms the reception preparation confirmation signal CFR, it transmits the image information PIX and at the same time sends out the procedure end signal EOP. When receiving the image information PIX, the receiving side records and outputs the received image. When receiving the procedure end signal EOP, the receiving side checks whether or not the image is normally received. If the image is normally received, the message confirmation signal MCF is received. To respond.

Upon receiving the message confirmation signal MCF, the transmission side sends the disconnection command signal DCN and then restores the line. Also, the receiving side, when receiving the disconnection command signal DCN, restores the line.

As described above, in the shortened protocol procedure, the transmission time of the transmission procedure signal other than the image information is significantly shortened,
It has become possible to significantly reduce the image information transmission time.

[0021]

By the way, in recent years, as a session initiation procedure for data transmission in the general switched telephone network (GSTN), ITU-T Recommendation V.3 has been proposed. 8 was specified. This Recommendation V. 8 states that "many DCEs (data circuit-terminating equipment) are capable of operating in accordance with some types of V-series modem recommendations, and between two DCEs connected via GSTN prior to the modem connection start-up procedure. It is a recommendation that should be applied also to the group 3 facsimile apparatus.

In particular, the latest modem recommendation, ITU-
Recommendation V.T. In a facsimile machine using a modem compliant with V.34 (hereinafter referred to as V.34 modem), the V.34 modem is used. 3
4 modems are recommended Session start procedure of 8 (hereinafter,
V. 8 transmission procedure) is applied as the start phase 1, so that the transmission procedure as shown in FIG. 13A is performed. In addition, V. Maximum speed of 34 modem is 3
It is 3.4 Kbps.

When the incoming call is detected, the receiving side first sends a signal ANSam which is a predetermined tone signal subjected to amplitude modulation, and then the V.V. 8 When the transmission side notifies the start of the transmission procedure and receives the signal ANSam, the transmitting side sends out a calling menu signal CM mainly for displaying the modulation method such as the type of the modem provided in the own terminal.

Upon receiving the calling menu signal CM, the receiving side selects the modulation method such as the modem type used at that time from the modulation methods such as the modem type notified by the calling menu signal CM, and the The common menu signal JM for notifying the modulation method such as the selected modem type is transmitted. In this case, the receiving side is No. 34 Modem is selected as the modem function to be used, and the sender is notified.

When the common menu signal JM is received, the transmitting side sends the CM terminator CJ, and the common menu signal JM is sent.
Set the function of the modem device so as to apply the modulation method such as the modem type notified in.

Further, the receiving side ends the output of the common menu signal JM after receiving the CM terminator CJ.

This signal ANSam-common menu signal J
Until the end of sending M.V. 8 transmission procedures. The calling menu signal CM, the common menu signal JM, and
The CM terminator CJ is a V. 21 Modem function (For details, refer to the document of Recommendation V.8.).

When the setting of the modem function to be used is completed in this way, the procedure for modem connection is started. In this case, V. 34 modem procedure (phase 2 and later) is started.

V. In the 34 modem procedure, first an INFO sequence for exchanging modem capability, line probing results, data mode modulation parameters is performed, then a training procedure for the equalizer of the primary channel is performed, and a modem parameter exchange procedure. After that, the procedure signal of the group 3 facsimile transmission procedure is exchanged to set the transmission function, and then the image information is transmitted (for details,
V. See 34 Modem Recommendation. ).

In addition, V. 8 transmission procedures. When it is selected to use a modem function other than the V.34 modem, for example, a V17 modem, a V29 modem, and a V27ter modem, as described above with reference to FIG. After 8 transmission procedures are performed, using the specified modem type,
The normal group 3 facsimile transmission procedure (T.30 procedure) is executed.

In this way, the V. When using a V.34 modem, the If not configured to use a V.34 modem, V.34. Since the standard group 3 facsimile transmission procedure is executed following the 8 transmission procedure, a situation occurs in which the transmission time becomes long.

The present invention has been made in view of such a situation, and is described in It is an object of the present invention to apply a transmission control method of a facsimile machine which can reduce the transmission time of a facsimile machine having a 34-modem function.

[0033]

SUMMARY OF THE INVENTION The present invention relates to a transmission control method for a facsimile apparatus having an image information transmission function according to a shortened protocol based on the Group 3 facsimile transmission control procedure standard. Eight transmission procedure functions and V.8. 34
The other terminal receiving function information storage means for storing the modem function and the receiving capacity parameter information received from the other terminal is provided, and the receiving capacity parameter information is stored in the other terminal receiving function information storage means for the designated other terminal. , V. If it is registered that the V.34 modem is not provided, V.34 8
The image information transmission by the above-mentioned shortened protocol is started without using the transmission procedure function.

Regarding the partner terminal in which the reception capability parameter information is not stored in the partner terminal reception function information storage means, the V. It is preferable to perform a predetermined image information transmission procedure starting from the 8 transmission procedure function, receive the reception capability parameter information from the partner terminal, and store the reception capability parameter information in the partner terminal reception function information storage means.

In addition, the reception capability parameter information stored in the reception function information storage means of the other terminal is set to V. With respect to the partner terminal that is registered as not having the 34 modem function, the V.34 is performed every predetermined number of times. A predetermined image information transmission procedure starting from the 8 transmission procedure function is performed.

Further, the V. In the predetermined image information transmission procedure starting from the 8 transmission procedure function, the image information transmission procedure according to the shortened protocol is performed.

Further, the transmitting side uses the V. 8 When the first start signal sent from the receiving side at the start of the transmission procedure is detected, the second start signal indicating that the shortening protocol is started is sent to start the shortening protocol, while the receiving side is started. When the second start signal is received from the transmitting side while the first start signal is being output, the output of the first start signal is interrupted and the shortening protocol is started.

[0038]

DETAILED DESCRIPTION OF THE INVENTION Referring to the accompanying drawings,
An embodiment of the present invention will be described in detail.

FIG. 1 shows a group 3 facsimile apparatus according to one embodiment of the present invention.

In the figure, the control unit 1 performs control processing of each unit of this facsimile apparatus and facsimile transmission control procedure processing (including V.8 transmission procedure processing), and the system memory 2 controls The control processing program executed by the unit 1 and various data necessary for executing the processing program are stored, and the work area of the control unit 1 is configured. It is for storing various information unique to the group 3 facsimile machine such as history information.

The scanner 4 is for reading an original image at a predetermined resolution, the plotter 5 is for recording and outputting an image at a predetermined resolution, and the operation display unit 6 is a facsimile device. For operation,
It consists of various operation keys and various indicators.

The encoding / decoding unit 7 is for encoding and compressing the image signal and for decoding the encoded and compressed image information into the original image signal. The image storage device 8 is
This is for storing a large number of image information in a coded and compressed state.

The group 3 facsimile modem 9 is for realizing the modem function of the group 3 facsimile, and has a low speed modem function (V.21 modem) for exchanging transmission procedure signals and mainly exchanging image information. High-speed modem function (V.17 modem, V.17)
34 modem, V.34. 29 modem, V.29. 27ter modem etc.).

The network control device 10 is for connecting the facsimile device to a public telephone line network, and has an automatic transmission / reception function.

These control unit 1, system memory 2,
The parameter memory 3, the scanner 4, the plotter 5, the operation display unit 6, the encoding / decoding unit 7, the image storage device 8, the group 3 facsimile modem 9, and the network control device 10
It is connected to the internal bus 11, and data exchange between these elements is mainly performed via the internal bus 11.

Data is exchanged directly between the network controller 10 and the group 3 facsimile modem 9.

FIG. 2 shows an example of the reception capability history information of the partner terminal stored in the parameter memory 3.

This receiving terminal history information of the receiving terminal stores the telephone number, presence / absence of each modem type, and predetermined receiving parameters for each receiving terminal.

With the above configuration, in the present invention, when a call is made to the other terminal, the V. 8 transmission procedures are carried out, whereby
V. When it is set to use a V.34 modem, the above-mentioned V.34 is used. Image information transmission is performed according to the transmission procedure of the 34 modem (see FIG. 13A).

Then, V. According to the transmission procedure of V.8, 34
Modem functions other than the modem, such as V.7. When it is set to use 17 modems, the transmission procedure as shown in FIG. 3 is executed.

That is, when the transmitting side makes a call to the receiving side and detects an incoming call, the receiving side first sends out a signal ANSam which is a predetermined tone signal subjected to amplitude modulation, and then the V.V. 8
When the transmission side notifies the start of the transmission procedure and receives the signal ANSam, the caller menu signal CM mainly for displaying the modulation method such as the type of the modem provided in the own terminal.
Is sent.

Upon receiving the calling menu signal CM, the receiving side selects the modulation method such as the modem type used at that time from the modulation methods such as the modem type notified by the calling menu signal CM, and the The common menu signal JM for notifying the modulation method such as the selected modem type is transmitted. In this case, the receiving side is 17 Select a modem function to use and notify the sender.

When the common menu signal JM is received, the transmitting side sends the CM terminator CJ, and the common menu signal JM is sent.
Set the function of the modem device so as to apply the modulation method such as the modem type notified in.

The receiving side ends the output of the common menu signal JM after receiving the CM terminator CJ.

In this way, the V. 8 Upon completion of the transmission procedure, the transmitting side sends the activation signal WPT, which is a predetermined tone signal for notifying that the shortened protocol procedure is started, and then the other terminal's reception capability history stored for the other terminal at that time. The transmission function used at that time is set based on the content of the information, and the non-standard function setting signal NSS for notifying the set transmission function is transmitted.

On the receiving side, V. 8 When the activation signal WPT is detected immediately after the transmission procedure, the non-standard function setting signal NSS is received, and when the reception is finished, the reception preparation confirmation signal CF
Send R.

When the transmitting side confirms the reception preparation confirmation signal CFR, it transmits the image information PIX and also sends out the procedure end signal EOP. When receiving the image information PIX, the receiving side records and outputs the received image. When receiving the procedure end signal EOP, the receiving side checks whether or not the image is normally received. If the image is normally received, the message confirmation signal MCF is received. To respond.

Upon receiving the message confirmation signal MCF, the transmitting side sends the disconnection command signal DCN and then restores the line. Also, the receiving side, when receiving the disconnection command signal DCN, restores the line.

In this way, in this embodiment, the V. V.8 transmission procedure. When it is decided to use a modem function other than the 34 modem, the shortened protocol procedure is performed, so that the transmission time of the transmission procedure signal other than the image information is significantly shortened, and the image information transmission time is reduced. It can be greatly shortened.

FIG. 4 shows an example of processing on the transmitting side in this case.

First, a call is made to a designated destination (process 10).
1) It is checked whether or not the signal ANSam is received from the partner terminal (decision 102). When the result of judgment 102 is YES, it is checked whether or not the partner terminal reception capability history information is stored for the partner terminal at that time (decision 103), and when the result of judgment 103 is YES,
V. 34 It is checked whether or not it has a modem function (decision 104). When the result of the determination 104 is YES, the predetermined V. Calling side procedure processing of 8 transmission procedures (Processing 10
5) is started, and the information based on the modulation method such as the modem type notified at that time is stored as the other terminal reception capability history information of the other terminal at that time (process 106). Further, when the partner terminal reception capability history information is not stored for the partner terminal at that time, the result of judgment 103 is N
When it becomes O, the process proceeds to step 105, the information on the modulation method such as the modem type is received from the partner terminal, and the partner terminal reception capability history information is newly formed and stored (process 106).

Then, the partner terminal at that time is V. 34 Check whether it has a modem function (decision 107),
When the result of determination 107 is YES, the predetermined V.
34. Image information transmission procedure processing of the 34 modem transmission procedure is executed (processing 108), and the image information at that time is transmitted.

Further, the other terminal is If the 8 transmission procedure is not provided, the signal ANSam is not received, and the determination 102
When the result is NO, and when the partner terminal is V. 3
When the result of judgment 104 or judgment 107 is NO in the case of not having the 4-modem function, it is checked whether or not the partner terminal reception capability history information is stored for the partner terminal at that time (decision 109), When the result of the judgment 109 is YES, a predetermined calling side shortened protocol process (process 11) is executed in order to execute the shortened protocol procedure.
0) is executed, and then a predetermined image information transmission procedure process is executed (process 111) to transmit the image information.

Further, when the partner terminal reception capability history information is not stored for the partner terminal at that time, the judgment 1
When the result of 09 is NO, the reception capability parameter received from the partner terminal is stored as the partner terminal reception capability history information of the partner terminal at that time (process 112), and then the standard group 3 facsimile transmission procedure process is performed. After executing a predetermined calling side normal protocol process (process 113), the process proceeds to process 111 to transmit the image information.

FIG. 5 shows an example of processing on the receiving side in this case.

When an incoming call is detected (the result of judgment 201 is YE
S), V. It is checked whether or not a transmission function is provided (decision 202). When the result of the determination 202 is YES, a predetermined V.V. Called side procedure processing (processing 203) of the transmission procedure of 8 is executed, and at that time, V. If the H.34 modem function is provided (the result of the judgment 204 is YES), the predetermined V.34. 34. Image information reception procedure processing (process 205) of the 34 modem transmission procedure is executed to receive image information.

Further, if the own terminal is V. 8 is not provided and the result of the determination 202 is NO, or if the own terminal or the other terminal is V.8. If the result of judgment 204 is NO in the case of not having the 34 modem function, it is next checked whether or not the activation signal WPT of the shortened protocol procedure is detected (decision 206).

When the result of the judgment 206 is YES, a predetermined called side shortening protocol process (process 207) is executed, and then a predetermined image information receiving procedure process (process 20).
8) is executed and image information is received.

Further, when the activation signal WPT is not detected and the result of the judgment 206 is NO, after executing the predetermined called side normal protocol processing which is the standard group 3 facsimile transmission procedure processing (processing 209),
The process moves to step 208 and image information is received.

By the way, in the above-mentioned embodiment, the reception capability history information of the partner terminal for each partner terminal is stored only at the time of the first call and is not updated thereafter. If the contents are changed, the contents will not be reflected.

6 and 7 show another example of processing on the transmitting side that can cope with such a function change of the partner terminal.

First, a call is made to a designated destination (process 30).
1) It is checked whether or not the signal ANSam is received from the partner terminal (decision 302). When the result of judgment 302 is YES, it is checked whether or not the partner terminal reception capability history information is stored for the partner terminal at that time (judgment 303), and when the result of judgment 303 is YES,
Increase the value of the communication counter CC by 1 (process 304),
Then, it is checked whether the value of the communication counter CC is equal to "3" (decision 305).

When the result of judgment 305 is NO,
V. It is checked whether or not it has the 34 modem function (decision 306). When the result of determination 306 is YES, the value of the communication counter CC for the partner terminal at that time is stored (process 307).

When the result of the judgment 303 is NO or when the result of the judgment 305 is YES, the value of the communication counter CC is initialized to "0" (process 308) and then the process 307 is performed. move on.

Then, after the processing 307, a predetermined V.
Calling side procedure processing (processing 309) of 8 transmission procedures is started,
Information based on the modulation method such as the modem type notified at that time is stored as the reception capability history information of the counterpart terminal at that time (process 310).

Further, when the partner terminal reception capability history information is not stored for the partner terminal at that time, the judgment 3
If the result of 03 is NO, this process 310
In, the reception capability history information of the partner terminal is newly formed and stored.

Then, the partner terminal at that time is V. 34 Check whether it has a modem function (decision 311),
When the result of the determination 311 is YES, a predetermined V.V.
The image information transmitting procedure of the 34 modem transmission procedure is executed (step 312) and the image information at that time is transmitted.

Further, if the partner terminal is V. If the 8 transmission procedure is not provided, the signal ANSam is not received, and the determination 302
When the result is NO, and when the partner terminal is V. 3
When the result of judgment 306 or judgment 311 is NO in the case of not having the 4-modem function, it is checked whether or not the partner terminal reception capability history information is stored for the partner terminal at that time (decision 313). When the result of the judgment 313 is YES, a predetermined calling side shortened protocol process (process 31) is executed to execute the shortened protocol procedure.
4) is executed, and then a predetermined image information transmission procedure process is executed (process 315) to transmit the image information.

Further, when the partner terminal reception capability history information is not stored for the partner terminal at that time, the judgment 3
When the result of 13 is NO, the reception capability parameter received from the partner terminal is stored as the partner terminal reception capability history information of the partner terminal at that time (process 316), and then the standard group 3 facsimile transmission procedure process is performed. After executing a predetermined calling side normal protocol process (process 317), the process proceeds to process 315, and the image information is transmitted.

Thus, in this case, one in three
The V.V. Since the 8 transmission procedure is executed, if the receiving capability of the partner terminal is changed, the result of the change is reflected in the receiving capability history information of the partner terminal, so that appropriate image information transmission corresponding to the model change of the partner terminal is performed. It can be performed.

It should be noted that this V. The frequency of performing the eight transmission procedure is not limited to once every three times.

By the way, this group 3 facsimile machine is 34 modem functions and V.34. When a call is made from a facsimile machine that does not have the 8-transmission function, as shown in FIG. 8, the activation signal WPT may be sent immediately after the incoming call response to shift to the shortened protocol procedure.

Also in this case, FIG. 9 shows an example of processing on the receiving side that can appropriately perform the image information receiving operation.

First, when an incoming call is detected (the result of judgment 401 is YES), the V. 8 It is checked whether or not the transmission function is provided (judgment 402), and the result of the judgment 402 is Y
When it becomes ES, while sending the signal ANSam,
Whether the activation signal WPT or the calling menu signal CM is detected is monitored (process 403, judgments 404, 405).
NO loop).

Judgment 4 when the activation signal WPT is detected
When the result of 04 is YES, after executing a predetermined called side shortening protocol process (process 406), a predetermined image information receiving procedure process (process 407) is executed to receive the image information.

Further, when the calling menu signal CM is detected and the result of the judgment 405 is YES, a predetermined V. Called side procedure processing of 8 transmission procedures (processing 4
08) is executed and, at that time, V. 3
When the 4-modem function is provided (the result of the judgment 409 is YES), a predetermined V. 34. The image information reception procedure processing (process 410) of the 34 modem transmission procedure is executed to receive the image information.

In addition, if the own terminal is V. 8 is not provided and the result of the judgment 402 is NO, or if the own terminal or the partner terminal is V.8. If the result of judgment 409 is NO when the 34 modem function is not provided, it is next checked whether or not the activation signal WPT of the shortened protocol procedure is detected (decision 411).

When the result of the judgment 411 is YES, a predetermined called side shortening protocol process (process 412) is executed, and then a predetermined image information receiving procedure process (process 41).
3) is executed and image information is received.

Further, when the activation signal WPT is not detected and the result of the judgment 411 is NO, after executing a predetermined called side normal protocol process which is a standard group 3 facsimile transmission procedure process (process 414),
The process moves to step 413 to receive the image information.

[0090]

As described above, according to the present invention,
V. V.8 transmission procedure. When it is decided to use a modem function other than the 34 modem, the shortened protocol procedure is performed, so that the transmission time of the transmission procedure signal other than the image information is significantly shortened, and the image information transmission time is reduced. The effect is that it can be significantly shortened.

Also, once every predetermined number of times, V.S. Since the 8 transmission procedure is executed, if the receiving capability of the partner terminal is changed, the result of the change is reflected in the receiving capability history information of the partner terminal, so that appropriate image information transmission corresponding to the model change of the partner terminal is performed. You get the effect that you can.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a group 3 facsimile apparatus according to one embodiment of the present invention.

FIG. 2 is a schematic diagram showing an example of reception capability history information of a partner terminal.

FIG. 3 is a time chart showing an example of a transmission procedure according to an embodiment of the present invention.

FIG. 4 is a flowchart showing an example of processing on the transmitting side according to an embodiment of the present invention.

FIG. 5 is a flowchart showing an example of processing on the receiving side according to an embodiment of the present invention.

FIG. 6 is a flowchart showing a part of another example of processing on the transmission side according to the embodiment of the present invention.

FIG. 7 is a flowchart showing the remaining part of another example of the processing on the transmission side according to the embodiment of the present invention.

FIG. 8 is a time chart showing an example of a transmission procedure according to another embodiment of the present invention.

FIG. 9 is a flowchart showing an example of processing on the receiving side according to another embodiment of the present invention.

FIG. 10 is a time chart showing an example of a standard transmission procedure of a group 3 facsimile apparatus.

FIG. 11 is a time chart showing an example of a transmission procedure of the group 3 facsimile apparatus which can reduce the transmission time.

FIG. 12 is a time chart showing an example of a shortened protocol.

FIG. Eight transmission procedures and V.8. 34 modem procedures and V.34. 8 is a time chart showing an example of a procedure when using 8 transmission procedures and other modem functions.

[Explanation of symbols]

 1 system control unit 2 system memory 3 parameter memory 9 group 3 facsimile modem

Claims (5)

[Claims] 1. A transmission control method for a facsimile apparatus having an image information transmission function according to a shortened protocol conforming to the Group 3 facsimile transmission control procedure standard, comprising: Eight transmission procedure functions and V.8. 34. A modem function and partner terminal reception function information storage means for storing reception capacity parameter information received from the partner terminal, and reception capacity parameter information is stored in the partner terminal reception function information storage means for the designated partner terminal. Cage,
The reception capability parameter information includes V. If it is registered that the V.34 modem is not provided, V.34 8 A transmission control method for a facsimile apparatus, which starts image information transmission by the above-mentioned shortened protocol without using the transmission procedure function. 2. A partner terminal for which the reception capability parameter information is not stored in the partner terminal reception function information storage means is described in 8. The predetermined image information transmission procedure starting from the 8 transmission procedure function is performed to receive the reception capability parameter information from the partner terminal and store the reception capability parameter information in the partner terminal reception function information storage means. Transmission control method for facsimile machines. 3. The reception capability parameter information stored in the counterpart terminal reception function information storage means is V.V. With respect to the partner terminal that is registered as not having the 34 modem function, the V.34 is performed every predetermined number of times. 8. A transmission control system for a facsimile apparatus according to claim 1, wherein a predetermined image information transmission procedure starting from the 8 transmission procedure function is performed. 4. The V. 4. The transmission control method for a facsimile apparatus according to claim 3, wherein the predetermined image information transmission procedure starting from the 8 transmission procedure function is performed by the image information transmission procedure according to the shortened protocol. 5. The transmission side is the V. 8 When the first start signal sent from the receiving side at the start of the transmission procedure is detected,
A second start signal indicating that the shortened protocol is to be started is sent to start the shortened protocol, while the receiving side outputs the second start signal from the transmitting side while outputting the first start signal. 5. The transmission control method for a facsimile apparatus according to claim 4, wherein the output of the first start signal is interrupted and the shortening protocol is started upon receipt of the request.