JP3015063B2 - Transmission control method for facsimile machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission control method for a facsimile apparatus having a shortening procedure function and a redial function.

[Related Art] In recent years, the number of functions provided in a facsimile apparatus has become extremely large, and in a pre-transmission procedure, the amount of data set in a field of a procedure signal exchanged with a partner apparatus has also become very large. As a result, the time required for the pre-transmission procedure processing becomes very long, and as a result, the time required for image information transmission is lost.

In order to solve such a situation, a facsimile apparatus having a so-called shortening procedure function has been put to practical use.

In this shortened procedure function, the transmitting apparatus stores available transmission function information such as field information of the non-standard function setting signal NSF for each destination, for example,
The procedure shown in FIG. 6A is executed.

That is, when the destination telephone number and transmission conditions are specified by the operator, the transmitting device TX calls the receiving device RX (dial).

Thus, when the receiving device RX detects an incoming call, the receiving device RX
The RX goes off-hook and transmits a called station identification signal CED composed of a predetermined tone signal for a predetermined time Ta.

Upon receiving the called station identification signal CED, the transmitting device TX immediately generates a predetermined tone signal TN1 for a predetermined short period of time, and stops outputting the tone signal TN1 at a point in time when a predetermined time has elapsed, A non-standard function setting signal NSS whose content is determined based on the stored transmission function information corresponding to the receiving device RX at the time is transmitted. Then, in order to perform modem training at the modem speed set at that time, a training check signal TCF is transmitted with the modem speed of the group 3 facsimile modem 90 set to the set speed.

On the other hand, when the receiving device RX detects the tone signal TN1 while transmitting the called station identification signal CED, it terminates the transmission of the called station identification signal CED at that point and outputs the non-standard function setting signal NSS. Move on to preparation for receiving.

As a result, the receiver RX receives the non-standard function setting signal NSS
Is received, a training check signal TCF is received at the transmission rate designated by the received signal. If the reception state is good, the reception preparation acknowledgment signal CFR is replied to shift to image information reception preparation.

Upon receiving the reception preparation confirmation signal CFR, the transmission device TX
The image information PIX of the transmission original is transmitted, and a procedure end signal EOP indicating that there is no subsequent page is transmitted.

The receiving device RX decodes the received image information PIX into the original image signal by the encoding / decoding unit 7, sequentially transfers the obtained image signals to the plotter 5, and records and outputs the received image. When the reception of the image information PIX is completed, the encoding / decoding unit 7 determines that the code error has become equal to or less than the predetermined number, and
Is normally received, a message confirmation signal MCF is returned.

Upon receiving the message confirmation signal MCF, the transmitting device TX sends out a disconnection command signal DCN, restores the line, and ends a series of image information transmitting operations.

Further, when receiving the disconnection command signal DCN, the receiving device RX restores the line and ends a series of image information receiving operations.

In this way, by storing the transmission function of the reception device RX in the transmission device TX, the transmission device TX sets the transmission function to be used by transmitting the non-standard function setting signal NSS.
The time required for the pre-transmission procedure can be reduced as compared with the standard procedure for setting the transmission function after receiving the notification of the transmission function from the receiving device RX.

If the receiving device RX does not have the shortening procedure function, a procedure as shown in FIG. 6B is executed.

That is, in this case, the transmitting device TX transmits the tone signal TN
Even if 1 is transmitted, the receiving device RX does not have a function of detecting it, so the receiving device RX transmits the digital identification signal DIS in accordance with the normal procedure.

As described above, the transmitting device TX transmits the non-standard function setting signal NS
Since the training check signal TCF is transmitted following S, the identification signal NSF of the non-standard device cannot be received, and at this time, a correct response signal to the training check signal TCF is received from the receiving device RX. I can't, so I'm waiting in that state.

The receiving device RX waits for the non-standard function setting signal NSS based on the transmitted digital identification signal DIS, but if it cannot receive the signal even after a certain period of time, transmits the digital identification signal DIS again.

When receiving the second digital identification signal DIS, the transmitting device TX sets a transmission function to be used based on the content, and sends out a digital command signal DCS corresponding to the set content.

Thereafter, the same transmission procedure as described above is performed, and the image information PIX is transmitted from the transmitting device TX to the receiving device RX.

On the other hand, a facsimile apparatus having a one-touch dial function that allows a destination telephone number to be input with a few key operations and a redial function that allows a destination called immediately before to be called again with a single key operation have also been put into practical use. I have.

As described above, functions for facilitating the use of the facsimile apparatus have been enhanced, and the usability of the facsimile apparatus has been extremely improved.

[Problems to be Solved by the Invention] However, such a conventional apparatus has the following disadvantages.

That is, for example, when transmission function information for the abbreviated procedure is stored corresponding to the abbreviated dial function, the telephone number operated and input using the abbreviated dial function is stored in a redial buffer for the redial function. However, since the transmission function for the shortening procedure function is not stored, there is a problem that the shortening procedure is not executed when the redial function is used.

The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a transmission control method for a facsimile apparatus that can effectively use a shortening procedure function.

Means for Solving the Problems According to the present invention, transmission function information acquired from a registration destination registered in each speed dial is stored in addition to the speed dial function, while at the time of using the speed dial function,
Before receiving the procedure signal from the destination, a short procedure function for directly transmitting a function setting signal based on the registered transmission function information and designating a transmission function to be used is provided,
In a transmission control method for a facsimile apparatus having a redial function capable of re-designating a destination number input immediately before by one key operation, index information for specifying registered transmission function information when abbreviated dial function is used Is also stored as redial information along with the destination number. When the redial function is used, the transmission function information is extracted by referring to the index information stored as the redial information, and based on the extracted transmission function information. The function setting signal is directly transmitted to specify the transmission function to be used.

[Operation] Therefore, even when the redial function is used, the shortening procedure function can be used, so that the usability of the facsimile apparatus is remarkably improved.

Hereinafter, an embodiment 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 one embodiment of the present invention.

In FIG. 1, a control unit 1 performs a control process of each unit of the facsimile apparatus and a facsimile transmission control procedure process. A system memory 2 stores a control processing program and a processing program executed by the control unit 1. In addition to storing various data necessary for executing the program, a work area of the control unit 1 is configured.

The parameter memory 3 is for storing various information unique to the group 3 facsimile apparatus such as, for example, shortened dial information, and is composed of, for example, a nonvolatile semiconductor device such as a battery-backed SRAM.

The scanner 4 is for reading a document 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 for operating this facsimile machine. It consists of various operation keys and various indicators.

The encoding / decoding unit 7 encodes and compresses the image signal and decodes the encoded and compressed image information into the original image signal. This is for storing a large number of image information in the state of being closed.

The group 3 facsimile modem 9 is for realizing a group 3 facsimile modem function, and is a low-speed modem function (V.21) for exchanging transmission procedure signals.
Modem) and a high-speed modem function (V.29 modem, V.27ter modem) for mainly exchanging image information.

The network control device 10 is for connecting the facsimile device to a public telephone line network and has an automatic transmission / reception function. Further, in this embodiment, FIG.
The network control device 10 has a function of generating a tone signal TN1 and a function of detecting the tone signal TN1.

These are a control unit 1, a system memory 2, a parameter memory 3, a scanner 4, a plotter 5, an operation display unit 6, an encoding / decoding unit 7, an image storage device 8, a group 3 facsimile modem 9, and a network control device 10. Is the system bus
The data is exchanged between these elements mainly through the system bus 11.

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

 FIG. 2 shows an example of the operation display unit 6.

In the figure, a start key 6a is for inputting a command to start the transmission / reception operation of the facsimile apparatus, and a stop key 6b is for inputting a command to stop the operation of the facsimile apparatus. 6c is
It is for inputting numerical (numerical) information such as a telephone number.

The redial key 6d is for executing a redial function that allows the telephone number of the destination called immediately before to be input with one key operation.
This is to realize a one-touch dial function in which one destination telephone number can be input by one key operation. Also,
The operation display unit 6 also has a speed dial function that can designate one destination telephone number by inputting a one-digit number following “#” of the numeric keypad 6c, for example.

The liquid crystal display 6f is for displaying various messages from the facsimile machine to the operator,
The YES key 6g is for inputting a positive response to the guidance message and the like, and the NO key 6h
Is used to input a negative response to the guidance message.

In the parameter memory 3, a key code table TBK as shown in FIG. 3A, a telephone number table TBT as shown in FIG. 3B, and learning information as shown in FIG. The table TBF is stored.

Key code table TBK is a one-touch dial key 6
e, a key code assigned to each key and each dial of the speed dial, and an index for referring to the stored contents of the telephone number table TBT and the learning information table TBF corresponding to the destination. Are arranged.

Phone number table TBT, one touch dial key 6e
This is for storing the registered telephone number corresponding to each key and each dial of the speed dial.

The learning information table TBF is a one-touch dial key 6e
This is for storing the field of the non-standard function identification signal NSF received in the pre-transmission procedure at the time of actual image information transmission, corresponding to each key and each dial of the speed dial.

In the work area of the system memory 2, as shown in FIG. 3D, a telephone number buffer for storing the telephone number of the call destination, and the destination is operated by the one-touch dial key 6e or the speed dial. In this case, a redial buffer BFR including an index buffer in which the corresponding index is stored is formed.

FIGS. 4A and 4B show an example of processing at the time of transmission. Note that, in this processing example, details other than the part of the pre-transmission procedure directly related to the present invention are omitted.

First, when the operator performs an operation for transmission preparation, a process for a transmission operation is performed until a start key (not shown) or the like of the operation display unit 6 is operated to input a command to start transmission (process 101, determination 102 NO loop).

When transmission is instructed and the result of determination 102 is YES, the destination operation is performed at that time by the one-touch dial key 6e.
It is checked whether the operation was performed using the short dial function or the redial function (decisions 103, 104, 105).

When the one-touch dial key 6e or the speed dial function is used, the result of the judgment 103 or the judgment 104 is YE
When it becomes S, the key code corresponding to the function operated at that time is referred to, the corresponding index is obtained from the key code table TBK, and the index is stored in the index buffer of the redial buffer BFR (processing 106). The telephone number is obtained from the telephone number table TBT by referring to the index, and the telephone number is stored in the telephone number buffer of the redial buffer BFR (process 107).

Further, the ten key 6c is used, and the result of the determination 105 is NO.
, H'FF (H 'represents a hexadecimal number; the same applies hereinafter) is set in the index buffer of the redial buffer BFR (process 108), and the telephone number operated and input at that time is stored in the redial buffer BFR. It is stored in the telephone number buffer (process 109).

When the redial key 6d is used and the result of the determination 105 becomes YES, the value of the redial buffer BFR at that time is held.

In this way, the destination telephone number can be
When stored in the BFR, it is checked whether or not the value of the index buffer of the redial buffer BFR is equal to H'FF (decision 110).

If the result of the determination 110 is NO, the contents of the telephone number buffer of the redial buffer BFR are taken out, the destination is called (process 111), and the process waits until the called station identification signal CED is answered from the destination (the determination 112). NO loop).

The destination responds and the called station identification signal CED is answered,
If this is detected and the result of determination 112 is YES, the network controller 10 sends a tone signal TN1 for a predetermined short time (process 113), waits for time (process 114), and waits for the redial buffer.
The field information of the non-standard function identification signal NSF is read from the learning information table TBF with reference to the index stored in the index buffer of the BFR (process 115).

Then, based on the field information of the read non-standard function identification signal NSF, the transmission function of the destination is identified, the transmission function to be used is set, and the non-standard function setting signal NSS for notifying the setting contents is generated. Form and send (Process 1
16) The modem training procedure is executed at the modem speed set at that time (process 117), and it is checked whether or not an appropriate response signal has been received in this modem training procedure (decision 118).

When the result of the determination 118 is YES, the shortening procedure can be executed, so that the transmission original set at that time is read by the scanner 4 to form an image signal, and the image signal is decoded by the encoding / decoding unit 7. The transmission image information is formed by encoding and compression, and the transmission image information is transmitted to the destination (process 119).

When image information transmission is completed, the post-transmission procedure is executed (processing
120), the line is restored (process 121), and a series of transmission operations ends.

When an appropriate response signal cannot be received in the modem training procedure and the result of the determination 118 is NO, the process proceeds to the normal procedure, and first, the digital identification signal DIS and the non-standard function identification signal NSF sent from the destination are transmitted. Is received (process 122), a transmission function is set based on the content of the received signal, and a non-standard function setting signal NSS for notifying the content is formed and transmitted (process 123). A modem training procedure is executed at the set modem speed (process 124).

Then, the transmission image information is formed in the same manner as described above, and the transmission image information is transmitted to the destination (processing 125). When the transmission of the image information is completed, the post-transmission procedure is executed (processing 126), and the line is restored. Then (process 127), a series of transmission operations ends.

Also, the field information of the non-standard function identification signal NSF received at this time is stored in the item of the learning information table TBF corresponding to the index stored in the index buffer of the redial buffer BFR, and the transmission function related to the destination is stored. Do the learning.

On the other hand, when the content of the index buffer of the redial buffer BFR is H'FF and the result of the determination 110 is YES, the normal procedure is executed.

That is, the contents of the telephone number buffer of the redial buffer BFR are taken out and the destination is called (process 129).
Receiving the digital identification signal DIS and the non-standard function identification signal NSF sent from the destination (process 130), setting the transmission function based on the content of the received signal, and setting the non-standard function for notifying the content A signal NSS is formed and transmitted (process 131), and a modem training procedure is executed at the modem speed set at that time (process 132).

Then, the transmission image information is formed in the same manner as described above, and the transmission image information is transmitted to the destination (processing 133). When the transmission of the image information is completed, the post-transmission procedure is executed (processing 134), and the line is restored. Then (process 135), a series of transmission operations ends.

In this way, in addition to the telephone number, the index for referring to the learning information is stored in the redial buffer BFR. Therefore, even when the redial key 6d is used in the destination input operation, the shortening procedure is executed. can do.

Also, in this case, if the speed reduction procedure cannot be executed for the destination registered in the one-touch dial function or the speed dial function, the normal procedure is executed and the non-standard function identification signal received at that time is executed. Since the registered contents of the learning information table TBF are updated in the NSF field, it is possible to appropriately cope with a case where the destination model is changed.

 FIG. 5 shows a process at the time of reception.

When an incoming call is detected (the result of decision 201 is YES), the called station identification signal CED is transmitted (process 202), and it is monitored whether or not the tone signal TN1 is received before the transmission time Ta elapses (decision). 203,204 NO loop).

When the tone signal TN1 is received and the result of the determination 204 is YES, the procedure shifts to the shortening procedure and receives the non-standard function setting signal NSS (Process 205).

Then, the contents of the information field of the received non-standard function setting signal NSS are analyzed, and it is checked whether the set transmission function matches the function of the terminal itself (decision 207).
When the result of step 07 is YES, a predetermined modem training procedure is performed (step 208).

In this way, when the reception preparation is completed, a predetermined image information receiving process is performed to receive the image information (process 209), and when the image information reception is completed, the post-transmission procedure is executed (process 210) to restore the line. Then (process 211), the series of image information receiving operations ends.

If the content of the information field of the received non-standard function setting signal NSS does not match the function of the terminal itself,
When the result of step 7 is NO, the procedure proceeds to the normal procedure.

That is, at this time, the digital identification signal DIS and the non-standard function identification signal NSF are transmitted (processing 212), and the non-standard function setting signal NSS transmitted from the transmitting side is received (processing 21).
3) After that, the processing shifts to processing 208 to receive image information.

On the other hand, when the tone signal TN1 is not received during transmission of the called station identification signal CED and the result of the determination 203 is YES, the process proceeds to the process 212 to execute the normal procedure, and the subsequent processes are performed. Execute.

In this way, when the tone signal TN1 instructing the start of the shortening procedure is received and the designated transmission function matches the function of the terminal itself, the shortening procedure is executed to receive the image information.

Otherwise, the normal procedure is executed to receive the image information.

In the above-described embodiment, an index buffer is provided in the redial buffer, and the learning information is searched using the contents of the index buffer.
This search method is not limited to this. It can be set appropriately according to the data structure for storing the learning information.

Further, in the above-described embodiment, at the time of calling, data is always stored in the redial buffer, and the calling operation is performed based on the contents of the redial buffer, but the calling method and the redial method are not described here. Other methods can be used.

Further, the present invention can be similarly applied to a facsimile apparatus having a shortening procedure function of a method different from that described above.

[Effects of the Invention] As described above, according to the present invention, the transmission function information obtained from the registered destination registered in each speed dial is stored while the speed dial function is used, while the speed dial function is used. Sometimes, before a procedure signal is received from a destination, a shortened procedure function for directly transmitting a function setting signal based on the registered transmission function information and designating a transmission function to be used is provided, and operation input is performed immediately before. In a transmission control method for a facsimile apparatus having a redial function capable of re-designating a destination number by one key operation, when abbreviated dialing function is used, index information for specifying registered transmission function information is also attached to the destination number. The redial information, and when the redial function is used, the index stored as the redial information. The transmission function information is extracted by referring to the transmission function information, and a function setting signal based on the extracted transmission function information is directly transmitted to specify the transmission function to be used.
Even when the redial function is used, the shortening procedure function can be used, and as a result, there is an effect that the communication time of the overall facsimile apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a group 3 facsimile apparatus according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing an example of an operation display unit, and FIG. 3 (a) is a schematic diagram showing an example of a key code table. FIG. 2B is a schematic diagram showing an example of a telephone number table, FIG. 2C is a schematic diagram showing an example of a learning information table, and FIG. 2D is a schematic diagram showing an example of a redial buffer. 4 (a) and 4 (b) are flowcharts showing an example of processing at the time of transmission, FIG. 5 is a flowchart showing an example of processing at the time of reception, and FIG. 6 (a) is a time chart showing an example of a shortening procedure. (B) is a time chart showing an example of shifting from the shortened procedure to the normal procedure. 1 ... Control unit, 2 ... System memory, 3 ... Parameter memory, 10 ... Network control device.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/32-1/34

Claims (1)

(57) [Claims] A transmission function information acquired from a registration destination registered in each speed dial is stored along with the speed dial function.
Before receiving the procedure signal from the destination, a short procedure function for directly transmitting a function setting signal based on the registered transmission function information and designating a transmission function to be used is provided,
In a transmission control method for a facsimile apparatus having a redial function capable of re-specifying a destination number input immediately before by one key operation, when abbreviated dial function is used, index information for specifying registered transmission function information Is stored as redial information accompanying the destination number, and when the redial function is used, the transmission function information is extracted by referring to the index information stored as the redial information,
A transmission control method for a facsimile apparatus characterized by directly transmitting a function setting signal based on the extracted transmission function information and designating a transmission function to be used.