JP2005102308A - Facsimile machine and control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a facsimile machine capable of smooth and high-speed data communication without providing a high-speed coder/decoder. <P>SOLUTION: In a facsimile machine control method for storing transmission image information and thereafter transmitting to an opposite terminal, at the time when a transmission function to be used with the opposite terminal is decided, a process for converting the stored transmission image information, corresponding to the decided transmission function is started. As a result, using a coder/decoder having a substantially equal processing speed to the speed provided in the conventional machine, it becomes possible to constitute the facsimile machine having a V.34 modem function. This produces an effect of restraining a cost increase of the facsimile machine capable of high-speed data communication. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method of controlling a facsimile apparatus that once stores transmission image information and transmits the information to a counterpart terminal.

In general, data transmission such as facsimile communication has a demand for further shortening the transmission time. For this reason, a high-speed modem function applied to transmission of image information has a higher transmission speed. It is becoming. For example, the latest modem recommendation ITU-T recommendation V.I. 34 (hereinafter referred to as V.34 modem), a very high data transmission rate of 33.4 Kbps can be applied.
ITU-T Recommendation V. 34

  By the way, when such a high data transmission rate is applied, it is necessary to increase the data generation rate of the data generation unit that generates transmission data such as transmission image information.

  However, the previous ITU-T recommendation In the facsimile apparatus using the modem 17, the data generating means for generating the transmission image information, that is, the encoding / decoding unit for encoding and compressing the transmission image data is used as it is. When applied to a facsimile machine using a 34 modem, it takes a long time for the encoding / decoding unit to output transmission image information, and image information transmission is not started. In a facsimile apparatus using a 34 modem, it is necessary to provide a high-speed encoding / decoding unit, resulting in a problem that the apparatus cost increases.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a facsimile apparatus that can smoothly perform high-speed data communication without a high-speed encoding / decoding unit.

  In the control method of the facsimile apparatus for transmitting the transmission image information to the counterpart terminal after the transmission image information has been temporarily stored, the transmission image information stored is determined when the transmission function to be used with the counterpart terminal is determined. The conversion processing corresponding to the transmission function is started.

  Also, the transmission image information is temporarily stored, and after the stored transmission image information is converted into an encoding method that can be used by the partner terminal, it is used with the partner terminal in the control method of the facsimile apparatus that transmits to the partner terminal. When the encoding method of the image information to be determined is determined, the process of converting the stored transmission image information into the image information of the determined encoding method is started.

  As a modem function, V.I. In a method for controlling a facsimile apparatus that has a 34-modem function, temporarily stores transmission image information, converts the stored transmission image information into an encoding method that can be used by the partner terminal, and transmits the encoded transmission information to the partner terminal. The process of converting the stored transmission image information into the image information of the determined encoding method when the encoding method of the image information to be used with the counterpart terminal is determined by the control channel protocol procedure of the 34 modem function. It ’s what I ’ve started.

  Also, the transmission function history of the partner terminal is stored, and at the time of calling, the transmission function to be used at that time is determined based on the history of the transmission function stored for the designated partner terminal, and the determination is made to the partner terminal. The transmission function used to communicate with the partner terminal is determined in the control method of the facsimile apparatus that transmits the image information to the partner terminal after the transmission image information is temporarily stored. At this point, the process of converting the stored transmission image information corresponding to the determined transmission function is started. The transmission image information is image information of a predetermined report image.

  Therefore, according to the present invention, V.I. When the 34 modem function is used, since the operation of the encoding / decoding unit is started at the earliest time, transmission image information having a sufficient amount of data is prepared at the start of transmission of image information by the group 3 facsimile modem. As a result, using an encoding / decoding unit having a processing speed equivalent to that of the conventional apparatus, A facsimile apparatus having a 34 modem function can be configured, and an increase in apparatus cost of a facsimile apparatus capable of high-speed data communication can be suppressed.

  Further, even when the AI short pro is applied, it is possible to arrange transmission image information having a sufficient amount of data at the time of transmission of image information, and it is possible to obtain an effect that image information transmission can be performed smoothly.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

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

  In the figure, a system control unit 1 performs control processing of each part of this group 3 facsimile machine and facsimile transmission control procedure processing. A system memory 2 includes a control processing program executed by the system control unit 1, In addition to storing various data necessary for executing the processing program and the like, it constitutes a work area of the system control unit 1, and the parameter memory 3 includes various information unique to the group 3 facsimile machine, For example, a history information table (not shown) of the transmission function of the counterpart terminal provided for executing so-called AI short pro is stored. The clock circuit 4 is for outputting current time information.

  The scanner 5 is for reading a document image with a predetermined resolution, the plotter 6 is for recording and outputting an image with a predetermined resolution, and the operation display unit 7 is for operating the facsimile apparatus. It consists of various operation keys and various displays.

  The encoding / decoding unit 8 encodes and compresses the image signal, and also decodes the encoded and compressed image information into the original image signal. The image storage device 9 performs encoding and compression. This is for storing a large number of image information in the selected state.

  The group 3 facsimile modem 10 is for realizing the modem function of the group 3 facsimile, and is a low-speed modem function (V.21 modem) for exchanging transmission procedure signals, and mainly for exchanging image information. A high-speed modem function (V.17 modem, V.34 modem, V.29 modem, V.27ter modem, etc.) is provided.

  The network control device 11 is for connecting the facsimile apparatus to the public telephone line network and has an automatic outgoing / incoming function.

  The system control unit 1, the system memory 2, the parameter memory 3, the clock circuit 4, the scanner 5, the plotter 6, the operation display unit 7, the encoding / decoding unit 8, the image storage device 9, the group 3 facsimile modem 10, and The network control device 11 is connected to an internal bus 12, and data exchange between these elements is mainly performed via the internal bus 12.

  Data exchange between the network control device 11 and the group 3 facsimile modem 10 is performed directly.

  Further, this group 3 facsimile apparatus basically performs a memory storage and transmission operation.

  In this memory storage / transmission operation, image data of a transmission original image read from the scanner 5 is encoded and compressed by an encoding / decoding unit 8 using an optimal encoding method, and image information formed thereby is converted into an image storage device 9. Once accumulated. Then, when a call is made to the partner terminal and the transmission function to be used at that time is determined, the encoding method of the transmission image information is converted into the encoding method included in the determined transmission function, and the transmission image after the conversion is converted. Send information to the other terminal.

  An example of a sequence for creating the transmission image information is shown in FIG.

  That is, the image information read from the image storage device 9 is decoded into the original image data by the decoding unit 8a of the encoding / decoding unit 8, and the image data is stored in the line buffer created in the system memory 2. 2a is accumulated.

  The image data stored in the line buffer 2a is encoded and compressed by the encoding unit 8b of the encoding / decoding unit 8 with an encoding method according to the transmission function of the counterpart terminal at that time, and as necessary. Accordingly, fill bits are added in units of lines and stored in a DCR (encoding / decoding) buffer 2b created in the system memory 2.

  Next, the transmission image information data read from the DCR buffer 2b is transferred to the group 3 facsimile modem 10 via the CCU (communication control unit) buffer 2c created in the system memory 2 and converted into a modem signal. And sent to the public network PSTN via the network control device 11.

  Note that when image information is transmitted in the ECM (error correction) mode, data is framed as described later, so that control of adding fill bits in units of lines is not performed. In this case, the CCU buffer 2c functions as an ECM data buffer.

  Thus, when transmitting image information, the transmission image information output from the encoding / decoding unit 8 is temporarily stored in the DCR buffer 2b. Therefore, even in high-speed data communication, the group 3 facsimile modem is actually used. If transmission image information having a sufficient amount of data is accumulated in the DCR buffer 2b before 10 starts transmitting image information, a smooth image information transmission operation can be performed.

  FIG. An example of a transmission procedure when image information is transmitted using the 34 modem function is shown.

  Here, V. When the 34 modem function is used, the above-described ECM mode is applied as the image information transmission mode. The outline of the ECM mode is as follows. The following image information transmission operation is performed.

  First, the transmission image information is divided into 256 (or 64) byte data, and each divided data is formed into frame data (with an error detection code) in a predetermined format, and 256 or less frame data are sequentially arranged. Sent in blocks.

  On the receiving side, each received frame is checked for the presence of a data error. When an error is detected in one or more frames, a transmission control signal notifying that is sent to the transmitting side, and the transmission control signal Adds information for notifying the frame number where the data error is detected. On the receiving side, if a data error is not detected in all received frames, a transmission procedure signal indicating that fact is sent to the transmitting side.

  On the other hand, when notified from the receiving side that a frame error has been detected, the transmitting side retransmits the frame data of the frame number notified at that time. When it is notified that no data error has been detected, the image information transmission operation for the next block is performed.

  By repeating this resending operation, image information for one block without error can be obtained on the receiving side.

  Note that the ECM mode is a basic transmission mode such as another data transmission mode of the group 3 facsimile apparatus that guarantees no data error, for example, a binary data transfer mode.

  In this case, V.I. A transmission procedure in the half-duplex mode of 34 modems is performed.

  That is, when the transmitting terminal TX makes a call to the receiving terminal RX and the receiving terminal RX responds to the incoming call, the transmitting terminal TX sends a call signal CNG, which is a single tone signal of a predetermined frequency. Start phase 1 to establish.

  In this phase 1, the receiving terminal RX sends a signal ANSam, which is a predetermined tone signal subjected to amplitude modulation, to notify the start of phase 1, and when receiving the signal ANSam, the transmitting terminal TX mainly receives the signal ANSam. A call menu signal CM for displaying a modulation method such as a modem type provided in the is sent out.

  When receiving the calling menu signal CM, the receiving terminal RX selects the modulation method such as the modem type used at that time from the modulation method notified by the calling menu signal CM and selects the selected modulation method. A common menu signal JM for notifying the modulation method such as the modem type is transmitted. In this case, the receiving terminal RX is V. 34 is selected as the modem function using the modem, and the transmission terminal TX is notified.

  When receiving the common menu signal JM, the transmitting terminal TX sends the CM end terminal CJ, and sets the function of the modem device so as to apply the modulation method such as the modem type notified by the common menu signal JM.

  The receiving terminal RX ends the output of the common menu signal JM after receiving the CM end terminal CJ.

  When the modem type to be used is set in this way, the transmitting terminal TX starts phase 2 for performing line probing for investigating the characteristics of the line to be used. Here, the signals indicated as A * and B * in the figure are signals obtained by inverting the signals A and B, respectively. Similarly, in the subsequent phases, a signal to which “*” is added is a signal obtained by inverting a signal having the same signal name to which no signal is added. The modem type to be used is V. In the case of other than 34 modems, when phase 1 ends, the process proceeds to a transmission procedure according to the modem type that is set to be used.

  In this phase 2, the modem characteristics of both sides are exchanged (signal INFO sequence), and the line characteristic is determined by receiving the line test tone (B, B *) transmitted by the transmitting terminal TX by the receiving terminal RX. The determination result is notified to the transmission terminal TX.

  Next, phase 3 for primary channel equalizer training is performed. Here, the transmitting terminal TX transmits a signal (S, S *, TRN) based on the result of phase 2, and the receiving terminal RX adjusts the equalizer of the primary channel that receives the image information by the received signal. To do.

  Next, phase 4 for control channel startup is performed. Here, the transmitting terminal TX and the receiving terminal RX each send a signal PPh and respond to the signal MPh sequence with respect to the received signal PPh. Among these, the transmission rate of the control channel and the transmission rate of the primary channel are exchanged by the signal MPh sequence. In addition, the transmission speed of each channel is set to the maximum possible speed among transmission speeds equal to or lower than the transmission speed indicated by both signal MPh sequences. That is, in this phase 4, the transmission speed of image information is set.

  In this way, when phase 4 is completed and the transmission rates of the control channel and the primary channel are set, in the next phase 5, facsimile pre-transmission procedure signals are exchanged using the control channel.

  That is, using the control channel, the receiving terminal RX notifies the digital identification signal DIS for notifying the standard function installed in the own terminal, and the non-standard function set in the own terminal. A non-standard function identification signal NSF and a called terminal identification signal CSI for displaying its own terminal are transmitted.

  When the transmitting terminal TX receives the non-standard function identification signal NSF, the digital identification signal DIS, and the called terminal identification signal CSI, the transmitting terminal TX sets the reception capability parameter value notified by the non-standard function identification signal NSF and the digital identification signal DIS. Based on this, the transmission function used at that time, such as the image size and the encoding method, is determined. Then, it transmits a transmission terminal identification signal TSI for displaying its own terminal and a digital command signal DCS for notifying the transmission function determined at that time.

  When receiving the digital command signal DCS, the receiving terminal RX responds with a reception preparation confirmation signal CFR indicating that fact and shifts to preparation for receiving image information.

  In the next phase 6, using the primary channel, the transmitting terminal TX transmits the image information PIX after retraining the modem by the signals S and S *. The receiving terminal RX performs the above-described error detection on the received image information PIX, and performs operations such as a retransmission request.

  In this way, basically, when receiving the reception preparation confirmation signal CFR from the reception terminal RX in the exchange of the facsimile transmission pre-procedure signal through the control channel of the phase 5, the transmission terminal TX receives the digital command signal DCS. Recognizing that the designated transmission function has been received by the receiving terminal RX, the operation of the encoding / decoding unit 8 is started at the time T1, and the generation operation of the transmission image information as shown in FIG. 2 is started.

  Here, the transmission of the image information is started from time T2 immediately after the retraining of the modem in phase 6 is completed. Therefore, if sufficient transmission image information data is not accumulated in the DCR buffer 2b at the time t1 from the time T1 to the time T2, the image information is not transmitted. In this case, the modem signal is maintained. As a result, the time for image information transmission becomes longer.

  Therefore, as shown in FIG. 4, the inventor of the present application uses the image of the transmission terminal TX based on the value of the reception capability parameter notified by the non-standard function identification signal NSF and the digital identification signal DIS received from the reception terminal RX. At the time T3 when the transmission function to be used at that time, such as the size and encoding method, is determined, the operation of the encoding / decoding unit 8 is started and the transmission image information generation operation as shown in FIG. 2 is started. It was.

  As a result, the time t2 until the time point T2 at which transmission of subsequent image information is started becomes longer than the time t1 in FIG. 3, and as a result, transmission image information having a sufficient amount of data is stored in the DCR buffer 2b. The image information can be appropriately transmitted from the start of the transmission of image information in phase 6.

  In this case, the time point T3 described above is the earliest time point when the transmission function to be used thereafter is determined. For example, even if transmission data information having a sufficient amount of data is not stored in the DCR buffer 2b at the time point T2, the shortest delay is achieved. The image information transmission in phase 6 can be started in time, and is the most effective timing as the activation timing of the encoding / decoding unit 8.

  In this case, an example of activation control of the encoding / decoding unit 8 executed by the system control unit 1 is shown in FIG.

  A call is made and V. 8. When the training procedure or the like of the V34 modem is started (processing 101), the process waits until phase 4 ends (NO loop of determination 102). When phase 4 ends and the result of determination 102 becomes YES, the receiving terminal RX Wait until a non-standard function identification signal NSF or a digital identification signal DIS is received (NO loop of decision 103).

  Then, when the non-standard function identification signal NSF or the digital identification signal DIS is received from the receiving terminal RX and the result of determination 103 is YES, and the transmission function to be used at that time is determined, the encoding / decoding unit 8 is activated. Then, the processing sequence shown in FIG. 2 is started, and generation of transmission image information is started (processing 104).

  Thus, in this embodiment, V. When the 34 modem function is used, since the operation of the encoding / decoding unit 8 is started at the earliest time, transmission image information having a sufficient amount of data is transmitted at the time of starting transmission of image information by the group 3 facsimile modem 10. As a result, the encoding / decoding unit 8 having the same processing speed as that of the conventional apparatus can be used. A facsimile apparatus having a 34 modem function can be configured, and an increase in apparatus cost of a facsimile apparatus capable of high-speed data communication can be suppressed.

  By the way, in the group 3 facsimile apparatus, a so-called AI short pro (abbreviated protocol) may be applied. An example of the AI short pro procedure is shown in FIG.

  First, the transmission terminal TX stores history information of the transmission function of the reception terminal RX in advance. When the transmitting terminal TX makes a call to the receiving terminal RX and the line is established, the receiving terminal RX detects an incoming call and sends a called station identification signal CED.

  When the transmitting terminal TX receives the called station identification signal CED from the receiving terminal RX, the transmitting terminal TX sends a predetermined tone signal TN1 (for example, a single tone signal of 800 Hz) instructing the start of the AI short pro.

  When receiving the tone signal TN1, the receiving terminal RX stops sending subsequent procedure signals, and waits until a non-standard function setting signal NSS (A) is received from the transmitting terminal TX.

  On the other hand, when the transmission terminal TX completes the transmission of the tone signal TN1, the transmission function history information stored corresponding to the reception terminal RX at that time is extracted, and the transmission function is used at that time. Determine as. Then, a non-standard function setting signal NSS (A) for notifying the determined transmission function is formed and transmitted to the receiving terminal RX.

  When receiving the non-standard function setting signal NSS (A), the receiving terminal RX sets the transmission function notified at that time to each function in the apparatus, and after receiving the reception preparation confirmation signal CFR, receives the image information. Prepare.

  When the transmission terminal TX receives the reception preparation confirmation signal CFR from the reception terminal RX, the transmission terminal TX recognizes that the transmission function specified by the non-standard function setting signal NSS (A) is accepted by the reception terminal RX, and performs coding / decoding at that time T5. The operation of the conversion unit 8 is started, and the transmission image information generation operation as shown in FIG. 2 is started.

  However, in this case, the transmission terminal TX starts retraining of the group 3 facsimile modem 10 immediately after receiving the reception preparation confirmation signal CFR, and transmits image information by the group 3 facsimile modem 10 following the retraining. However, this image information transmission start time T6 has only passed a short time t5 from the time T5 when the encoding / decoding unit 8 is started. Therefore, sufficient data of the transmission image information is stored in the DCR buffer 2b. Is not stored, image information is not transmitted, and a flag for maintaining a modem signal is transmitted, resulting in a longer time for image information transmission.

  Therefore, the inventor of the present application, as shown in FIG. 5B, terminates transmission of the tone signal TN1 by the transmitting terminal TX and stores the history information of the transmission function stored corresponding to the receiving terminal RX at that time. At the time T7 when the non-standard function setting signal NSS (A) for determining the transmission function to be used at that time and forming the non-standard function setting signal NSS (A) for notifying the determined transmission function is formed. 8 is started, and the transmission image information generation operation as shown in FIG. 2 is started.

  As a result, the time t6 until the time point T6 at which transmission of subsequent image information is started is sufficiently longer than the time t5 in FIG. 9A, and as a result, a transmission image having a sufficient data amount in the DCR buffer 2b. Information can be accumulated, and image information transmission can be performed appropriately from the start of image information transmission at time T6.

  In this case, the above-described time point T7 is the earliest time point when the transmission function to be used thereafter is determined. For example, even if transmission data information having a sufficient amount of data is not stored in the DCR buffer 2b at time point T6, the shortest delay is achieved. The image information transmission in phase 6 can be started in time, and is the most effective timing as the activation timing of the encoding / decoding unit 8.

  On the other hand, if the transmission function of the receiving terminal RX is changed or the receiving terminal RX cannot detect the tone signal TN1, the process proceeds to the relearning procedure. An example of the relearning procedure is shown in FIG.

  First, when the transmitting terminal TX makes a call to the receiving terminal RX and a line is established, the receiving terminal RX detects an incoming call and sends a called station identification signal CED.

  When the transmitting terminal TX receives the called station identification signal CED from the receiving terminal RX, the transmitting terminal TX sends a predetermined tone signal TN1 (for example, a single tone signal of 800 Hz) instructing the start of the AI short pro, and the tone signal TN1 When the transmission is completed, the history information of the transmission function stored corresponding to the receiving terminal RX at that time is taken out, and the transmission function is determined as the transmission function used at that time. Then, a non-standard function setting signal NSS (A) for notifying the determined transmission function is formed and transmitted to the receiving terminal RX.

  At this time, when receiving the tone signal TN1, the receiving terminal RX stops sending subsequent procedure signals, and waits until a non-standard function setting signal NSS (A) is received from the transmitting terminal TX. Then, the non-standard function setting signal NSS (A) is received. At this time, since the transmission function of the own terminal is changed, the non-standard function setting signal NSS (A) cannot be applied.

  Therefore, the receiving terminal RX sends a non-standard function identification signal NSF and a digital identification signal DIS for notifying the function of the own terminal to the transmitting terminal TX for the relearning procedure.

  On the other hand, when the transmission terminal TX cannot receive the reception preparation confirmation signal CFR from the reception terminal RX in response to the non-standard function setting signal NSS (A), the transmission terminal TX receives the non-standard function identification signal NSF and the digital identification signal DIS. , The non-standard function for determining the transmission function to be used at that time and notifying the determined transmission function based on the received non-standard function identification signal NSF and the digital identification signal DIS A setting signal NSS is formed and transmitted to the receiving terminal RX. At the same time, the content of the history information stored as the transmission function of the receiving terminal RX at that time is updated to the content of the transmission function determined at that time.

  When the non-standard function setting signal NSS is transmitted, the transmitting terminal TX transmits a signal TCF for modem training. When receiving the non-standard function setting signal NSS, the receiving terminal RX sets the transmission function notified by the non-standard function setting signal NSS in each part in the apparatus, receives the signal TCF, and performs a modem training operation. If the modem training result is good, a reception preparation confirmation signal CFR is returned to the transmitting terminal TX.

  When the transmission terminal TX receives the reception preparation confirmation signal CFR from the reception terminal RX, the transmission terminal TX starts retraining of the group 3 facsimile modem 10 and transmits image information by the group 3 facsimile modem 10 following the retraining.

  Further, in this case, similarly to FIG. 6B, the transmitting terminal TX, after completing the transmission of the tone signal TN1, at the time T7 determined as the transmission function to be used based on the history information, the encoding / decoding unit 8 2 is started, and the transmission image information generation operation as shown in FIG. 2 is started. In this case, the reception terminal RX confirms the reception preparation for the non-standard function setting signal NSS (A). Since the non-standard function identification signal NSF and the digital identification signal DIS are received without receiving the signal CFR, the transmission image information generation operation of FIG. 2 is temporarily stopped at the time T8.

  Then, based on the received non-standard function identification signal NSF and digital identification signal DIS, at the time T9 when the transmission function to be used at that time is determined, the encoding / decoding unit 8 is started again, and the transmission shown in FIG. The image information generation operation is started.

  As a result, transmission image information having a sufficient amount of data can be stored in the DCR buffer 2b at time T10 when image information transmission is started, and image information transmission can be appropriately performed from this time T10.

  An example of activation control of the encoding / decoding unit 8 executed by the system control unit 1 in this case is shown in FIG.

  A call is made to the designated destination (process 201), and it waits until the called station identification signal CED is received from the receiving terminal RX (NO loop of decision 202), and the called station identification signal CED is received from the receiving terminal RX. When the result of determination 202 is YES, tone signal TN1 is sent (process 203).

  Then, based on the history information stored for the destination at that time, the transmission function is determined (process 204), the encoding / decoding unit 8 is activated, and the transmission image information generation operation as described above is started. (Process 205).

  At the same time, a non-standard function setting signal NSS (A) for notifying the determined transmission function is transmitted (process 206), and a reception preparation confirmation signal CFR is received as a response signal, or a non-standard function identification signal is received. Wait until NSF and digital identification signal DIS are received (NO loop of determinations 207 and 208).

  When the reception preparation confirmation signal CFR is received as a response signal and the result of determination 207 is YES, in this state, the process proceeds to the next process, and the image information transmission operation is continued.

  When the reception of the non-standard function identification signal NSF and the digital identification signal DIS is received as a response signal and the result of determination 208 is YES, the operation of the encoding / decoding unit 8 is stopped and the transmission image The information generation process is stopped (process 209), and the transmission image information created and saved in the DCR buffer 2b at that time is deleted (process 210).

  Next, based on the received non-standard function identification signal NSF and digital identification signal DIS, the transmission function to be used at that time is determined (processing 211), and the encoding / decoding unit 8 is activated to Transmission image information generation operation is started (process 212).

  Thereafter, the transmission operation as described above is continuously executed to perform the image information transmission operation, and the content of the history information stored as the transmission function of the receiving terminal RX at that time is newly determined transmission. Update to feature content.

  In this way, in this embodiment, even when the AI short professional is applied, it is possible to arrange transmission image information having a sufficient amount of data when transmitting the image information, and to smoothly transmit the image information.

  In the above-described embodiment, the case where image information of image data obtained by reading from the scanner 5 is transmitted has been described. However, various report images are generated and image information of the report image is transmitted. The invention can be applied in the same way.

1 is a block diagram showing a configuration example of a group 3 facsimile apparatus according to an embodiment of the present invention. The block diagram which showed an example of the production | generation sequence of transmission image information. V. 34 is a timing chart showing an example of a transmission procedure when image information is transmitted using the modem function. The timing chart for demonstrating the starting timing of the encoding / decoding part concerning one Example of this invention. The flowchart which shows an example of starting control of the encoding / decoding part which a system control part performs. The time chart which showed an example of the procedure of AI short pro. The time chart which showed an example of the relearning procedure of the procedure of AI short professional. The timing chart for demonstrating the starting timing of the encoding / decoding part concerning the other Example of this invention.

Explanation of symbols

1 System control unit 10 Group 3 facsimile modem

Claims (5)

In a control method of a facsimile apparatus that transmits transmission image information once and then transmits it to a partner terminal,
A method of controlling a facsimile apparatus, comprising: starting a process of converting stored transmission image information in accordance with a determined transmission function when a transmission function to be used with a partner terminal is determined. In a control method of a facsimile apparatus that temporarily stores transmission image information, converts the stored transmission image information into an encoding method that can be used by the partner terminal, and transmits the encoded image to the partner terminal.
A process for converting a stored transmission image information into image information of the determined encoding method at the time of determining an encoding method of image information to be used with a partner terminal. Control method. As a modem function, V.I. In a method of controlling a facsimile apparatus having a modem function, temporarily storing transmission image information, converting the stored transmission image information into an encoding method usable by the counterpart terminal, and transmitting the encoded information to the counterpart terminal.
V. The process of converting the stored transmission image information into the image information of the determined encoding method when the encoding method of the image information to be used with the counterpart terminal is determined by the control channel protocol procedure of the 34 modem function. A control method of a facsimile machine, characterized by starting. The transmission function history of the partner terminal is stored, and when a call is made, the transmission function to be used at that time is determined based on the history of the transmission function stored for the designated partner terminal, and the determined transmission to the partner terminal In the control method of the facsimile apparatus that transmits the image information to the partner terminal after temporarily storing the transmission image information, while notifying the function and starting the image information transmission operation.
A method of controlling a facsimile apparatus, comprising: starting a process of converting stored transmission image information in accordance with a determined transmission function when a transmission function to be used with a partner terminal is determined.   5. The facsimile apparatus control method according to claim 1, wherein the transmission image information is image information of a predetermined report image.