JPH04180343A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To enable transmission by a shortened protocol at the time of next dial calling by storing the function of the facsimile equipment of a called machine in a storage part to store a telephone number inputted in a temporary mode for re-dialing. CONSTITUTION:In the case that facsimile communication is executed with an opposite party with which the facsimile communication is not so often executed usually, the facsimile communication is executed in the temporary mode. In this case, when the telephone number is inputted by the ten-key of a display operating part 4, and a start key is pushed, the facsimile equipment originates the call of the inputted telephone number, and simultaneously, stores the telephone number in a Tel buffer for re-dialing in a system memory 3. Next, after the connection of a line, if a maker code in the FIF(Facsimile Information Field) information of an NSF(non-standard function discrimination) signal sent from the facsimile equipment of the called machine coincides with the maker code of its own machine, and simultaneously, a bit to show a shortened protocol receiving function in the FIF information is in an ON state, this FIF information is stored as learning information next to of a punctuation code after the telephone number stored in the Tel buffer for re-dialing in the system memory 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine having a shortened protocol function.

[Prior Art] Generally, in a facsimile, if the function of the communication destination is known in advance, the calling side can suddenly send command information without receiving a called station identification signal or a called station function identification signal from the called side. In order to perform facsimile communication using a shortened protocol function that allows you to enter the sending procedure and omit part of the receiving procedure, the called party must also be a facsimile device that has the shortened protocol function. .

In order to utilize this shortened protocol function,
First, before making a call, it is confirmed that the facsimile machine on the called side (hereinafter referred to as called machine) has an abbreviated protocol function. Once it is confirmed that the called machine has the abbreviated protocol function, operate the display and operation section of the calling side's facsimile machine (hereinafter referred to as the calling machine) to one-touch dial or speed dial the telephone number of the called machine. (hereinafter referred to as one-touch/speed dial). Next, by pressing this one-touch/speed dial, the called machine makes a call and performs normal facsimile communication.

For example, when performing facsimile communication in G3 mode, the called device (Rx) sends a CED signal (called station identification signal) in response to a call from the calling device (Tx), as shown in Figure 5. ) in response, and then sends a DIS signal (digital identification signal) and an NSF signal (non-standard function signal) to notify the calling device of the called device's capabilities. Next, in response to the NSF signal from the called device, the calling device sends an NSS signal (non-standard function setting signal), and then transmits a TCP signal (training signal) while switching the modem's transmission speed to the high-speed modem function. signal). When the called device receives this NSS signal, it memorizes its contents and receives the TCP signal for phase adjustment/training while switching the transmission speed of the modem to the high-speed modem function according to the contents. If the reception result is good, a CFR signal (reception preparation confirmation signal) is responded. When the calling device receives this CFR signal, it then transmits prx (transmission image information).

During this process, if the called device is called using one-touch/speed dialing, the PIF of the NSF signal indicating the functions of the called device is stored in the learning area reserved in the system memory.
(Facsimile information field) Stores information.

As a result, the next time you perform facsimile communication with the same called machine using one-touch/speed dialing, the calling machine will use the abbreviated protocol function to receive the CED signal and DIS from the called machine, as shown in Figure 6. Send NSS and TCP signals without waiting for signals and NSF signals. The called device also receives the NSS signal and TCP signal from the calling device, and responds with a CFR signal if the reception results are good.

In this way, the calling device receives the CED signal from the called device, and the DIS signal from the called device.
Since the NSS signal and the TCP signal can be sent without waiting for the signal and the NSF signal, the time consumed in facsimile communication is reduced.

[Problems to be Solved by the Invention] However, one-touch/speed dialing is used to perform facsimile communication with parties with whom communication is performed relatively frequently, and with parties who do not normally use facsimile communication, it is necessary to communicate directly with the other party using the numeric keypad. Facsimile communication is performed in the temporary mode in which you input the . In this case, if facsimile communication is performed in temporary mode without knowing that the called machine has an abbreviated protocol function, an area for learning the functions of the called machine will not be secured in the system memory. Therefore, unlike the case of facsimile communication using one-touch/speed dialing, the calling device does not learn the functions of the called device during the first communication. Therefore, the next time you perform facsimile communication with the same called machine that has the abbreviated protocol function, even if you make a call by redialing, the abbreviated protocol function of the own machine will not be activated, and the above-mentioned protocol for facsimile communication will be used again. The problem was that it required a lot of time to execute.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a facsimile apparatus which is capable of transmitting calls using an abbreviated protocol even when a call is made by redialing.

[Means for Solving the Problems] The present invention provides a facsimile machine having an abbreviated protocol function and a redial function. The storage unit for storing the telephone number for redialing is provided with means for storing the functions of the facsimile machine of the called machine.

[Effect] As a result, even if you make a call in temporary mode to a destination with which communication is infrequent, the functions of the facsimile machine of the called machine are not recorded.
2, it becomes possible to transmit using the shortened protocol in the case of the next Nori-dial call.

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

FIG. 1 shows a block diagram of a facsimile machine according to an embodiment of the present invention.

In the figure, the CPU is used to control each part of the facsimile machine and perform facsimile transmission control procedures, and the ROM 2 constitutes the work area of the CPU and stores management information in files.

The system memory 3 stores the control processing program executed by the CPUI and various data necessary when executing the processing program, and is provided with a Tel buffer for telephone dialing inside. Here, the Tel buffer for double dialing is used to store telephone numbers input in a plurality of temporary modes after a call is made, and also to store FIF information of the NSF signal.

The information display/operation unit 4 is used to display operation guidance and the like and to operate the facsimile machine using various operation keys, and the scanner 5 is used to read a document image at a predetermined resolution.

The encoding/decoding unit 6 encodes and compresses image information and decodes the encoded and compressed image information, and the modem 7 is a high-speed modem that modulates and demodulates image information and transmits it, and a transmission control procedure. It consists of a low-speed modem that transmits various procedural signals.

The network control device 8 provides an analog connection between the public telephone line and the modem 7.
It has an interface function and an automatic calling function, and serves as a line for forming a DC loop between the own facsimile machine and the other party's facsimile machine, making a call, disconnecting the DC loop, etc., and as an interface between the facsimile machines.

These CPUI, ROM 2, system memory 3, display operation section 4, scanner 5, encoding/decoding section 6, modem 7, and network control device 8 are connected to a system bus 9, and data is exchanged between these elements. Exchanges are mainly performed via this system bus 9.

Next, the learning operation in the temporary mode of the facsimile machine configured as described above will be explained using the flowchart shown in FIG.

Normally, when performing facsimile communication with a party with whom facsimile communication is not often performed, facsimile communication is performed in temporary mode. In this case, after setting the original on the scanner 5, the telephone number is input using the numeric keys on the display operation section 4 (processing) O, and the start key is pressed.
The facsimile machine calls the input telephone number (process 11).

The telephone number called at this time is stored in the dialing Tel buffer in the system memory 3 (process 12).

Next, as shown in Figure 5 above, after the line is connected and the called machine's facsimile device sends out the CHD signal, when the DIS signal and the NSF signal are sent, the PIF information of this NSF signal is If the manufacturer code of the device matches the manufacturer code of the own device, and the bit indicating the shortened protocol reception function in the PIF information is on (Y in Judgment 13).
), this PIF information is stored as learning information next to the delimiter code after the telephone number stored in the dialing Tel buffer in the system memory 3 (process 14).

Next, the calling device responds to the PIF information of this NSF signal and processes to create an NSS signal representing the set contents15)
, to the called device, and also sends out the TCF signal. When the called device receives this NSS signal, it stores its contents, switches its modem function according to the contents, and receives the TCP signal.

Then, the called device receives this TCF signal, and if the reception result is good, it sends a CFR signal to the calling device to notify that reception preparation is complete.

When the calling device receives the CFR signal, it reads the image information with the scanner 5, sets it line by line in the line buffer in the system memory 3, compresses it with the encoder/decoder 6, and sends it to the modem 7 and the network controller 8. The data is sent out as compressed data over the line and sent to the called machine.

Next, the case where facsimile communication is performed using the redial function to the same destination will be explained using the flowchart shown in FIG.

In this case, place the document on the scanner 5, and press the redial key on the display/operation unit 4 to select the desired phone number from among the phone numbers of the phone numbers you previously called, which are stored in the redial Tel buffer. Press once or multiple times until is displayed on the display/operation section 4. Next, when the start key is pressed, the calling device calls this telephone number (process 20). Here, the PI of the NSF signal is stored in the redial Tel buffer.
If the F information is stored as learning information (determination 21: Y), an NSS signal for the shortened protocol with content corresponding to the learning information is created (action 22). Then, the calling device sends out the NSS signal (procedure 23) and the TC
P signal is sent out (see Figure 6).

°Also, the P of the NSF signal is added to the redial Tel buffer.
If the IF information is not stored (N in Judgment 21), it is determined that the called machine does not have the same manufacturer code as the own machine or does not have the shortened protocol reception function, and the called machine is used as a normal facsimile machine. following the protocol between DIS
The reception processing of the signal and the NSF signal is performed (processing 24). Next, process 25) to create an NSS signal or DC3 signal (digital command signal), and send this signal (process 2)
6).

In this way, even in the temporary mode, by storing the functions of the calling side facsimile machine, facsimile communication using the shortened protocol becomes possible even when the redial key is pressed.

[Effects of the Invention] As explained above, according to the present invention, even if a call is made in the temporary mode to a destination with which communication is infrequently performed, the function of the facsimile device of the called machine is memorized, so that the next call can be made. In the case of a call, transmission using the shortened protocol is possible. As a result, the time consumed for facsimile communication can be shortened, and communication costs can also be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of a facsimile machine according to an embodiment of the present invention, FIG. 2 is a flowchart of learning processing of the facsimile machine, FIG. 3 is a diagram showing an example of storing PIF information in a telephone dial buffer, and FIG. FIG. 5 is a sequence diagram showing an example of a facsimile communication procedure, and FIG. 6 is a sequence diagram showing an example of a facsimile communication procedure in the shortened protocol. l...: CPU, 2... ROM, 3... system memory, 4... display operation section, 5... scanner, 6...
- Encoding/decoding unit, 7...Modem, 8...Network control unit.

Claims (1)

[Claims] What is claimed is: 1. A facsimile device having an abbreviated protocol function and a redial function, characterized in that a storage unit for storing a telephone number for redialing includes means for storing the function of a facsimile device on a called side.