JPH02213271A - Transmission control method for facsimile equipment - Google Patents

Abstract

PURPOSE:To obtain picture information to be transmitted with a transmitter by a receiver without necessiating an operator's operation by constituting this facsimile equipment so that when the cause of unreceivability is released, the receiver executes a polling transmission request operation in which a telephone number received from the transmitter is a destination. CONSTITUTION:A DTMF signal detector 11 is provided in order to detect a DTMG signal inputted from an opposite terminal through a circuit. A control part 1, a system memory 2, a parameter memory 3, a scanner 4, a plotter 5, an operation display part 6, an encoding/decoding part 7, an image memory 8, a MODEM 9, a network controller 10 and the DTMF signal detector 11 are connected to a system bus 12, and the exchange of various information between each element of them is executed through this system bus 12. In the case of being unreceivable, the DC circuit of the circuit is closed, four DTMF signals for showing the unreceivability are sent out, and it is supervised that the DTMF signal is sent out of a transmitter before a prescribed time elapses after its sending-out is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transmission control method for a facsimile machine suitable for when a receiving side is in a state where reception is disabled.

[Prior Art] In most cases, a facsimile machine is always in an automatic receiving state, and when a call is made from one of the facsimile machines, it performs a predetermined receiving operation in response to the call. I have to.

[Problem to be Solved by the Invention] However, in such a conventional device, when an incoming call is detected and some abnormality occurs on the receiving side and the receiving side cannot perform the receiving operation, the receiving side does not accept the incoming call. This has caused the inconvenience of not being able to properly transmit image information.

The present invention eliminates such inconveniences, and provides a facsimile device that can receive image information from the sender when the cause of the inability to receive is removed when the receiver is unable to receive data. The purpose is to provide a control method.

[Means for Solving the Problems] In the present invention, the receiving device responds to the transmitting device with a signal indicating unreceivable when reception is not possible upon detecting an incoming call, and the transmitting device responds to the transmitting device when the receiving device responds with the unreceivable signal. Then, it sends a selection signal indicating the phone number of its own terminal to the receiving device and shifts to a polling transmission standby state, and when the cause of unreceivable reception is removed, the receiving device starts polling with the phone number received from the transmitting device as the destination. It is designed to perform a transmission request operation.

[Operation] Therefore, when the receiving device is in a state in which reception is not possible, when the cause is removed, the receiving device issues a polling transmission request to the transmitting device, so that the image information that the transmitting device was trying to transmit is It can be obtained by the receiving device.

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

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

In the figure, a control unit 1 controls the operation of each element of the facsimile machine and also performs predetermined facsimile transmission procedure processing, and a system memory 2 stores processing programs executed by the control unit 1 and their processing. The parameter memory 3 stores various information necessary for executing programs and constitutes the work area of the control section 1. The parameter memory 3 stores various information specific to this facsimile machine. .

The scanner 4 is for reading the original image at a predetermined resolution, the plotter 5 is for recording and outputting the image at a predetermined resolution, and the operation display section 6 is for operating the functions of this facsimile machine. It consists of various operation keys necessary to perform operations, and a display device such as a liquid crystal display that displays guidance messages to the operator.

The encoding/decoding unit 7 encodes and compresses the image signal obtained by reading with the scanner 4, and also decodes the encoded and compressed image information into the original image signal. 8 is for storing a large amount of encoded and compressed image information.

The modem 9 is for performing modulation and demodulation processing for data transmission using the public telephone line network, which is an analog line network, and the network control device 10 is for connecting this facsimile device to the public telephone line network. belongs to. This network control device 10 has an automatic call origination/reception function, and in this case, sends out a DTMF signal as a selection signal.

The DTMF signal detector 11 is for detecting a DTMG signal input from a partner terminal via a line.

These control section 1, system memory 2, parameter memory 3, scanner 4, plotter 5, operation display section 6, encoding/decoding section 71, image memory 8. Modem 9, network control device 10
, and the DTNF signal detector 11 is connected to the system bus 1
The system bus 12 is connected to the system bus 12, and various types of information are exchanged between these elements.

An example of the transmission process when image information is transmitted between the facsimile machines with the above configuration is shown in FIG.
An example of reception processing is shown in FIG. In the following description, the processing steps in FIG. 2 are numbered in the 100s, and the processing steps in FIG. 3 are numbered in the 200s.

When the operator inputs various necessary information and inputs a command to start transmitting image information, the transmitter closes one DC circuit (process 101).

A call is made to the destination (process 102).

As a result, the transmitting device monitors whether the called station identification signal CED or DTMF signal is sent from the receiving device during a predetermined period of time after the call is made (determinations 103 and 104). , 105 NO loop).

On the other hand, when the receiving device detects an incoming call (process 201).

Check whether reception is possible at that time (processing 2
02), if reception is possible (result of judgment 203 is YES), normal reception processing is started (process 204).

A called station identification signal CED is sent to notify that the own terminal is a non-voice terminal.

Also, if reception is not possible (result of judgment 203 is No)
Process 205) to close the DC circuit of the line, process 206) to send out four DTMF signals r#IF*IJ indicating unreceivable, and send them within a predetermined period of time after completion of the sending process 206) The transmission of the DTMF signal from the device is monitored (determinations 207 and 208). Note that the transmission of this DTMF signal can be performed by the network control device 10.

If the receiving device responds with the called station identification signal CED (YES in decision 103), the transmitting device executes normal transmission processing (processing 106).

When a DTMF signal is received from the receiving device, it is checked whether the content is rH1*IJ (determination 107).
When the result of judgment 107 is YES, the receiving device has notified that reception is not possible, so a DTMF signal representing the telephone number of the own terminal is sent to the receiving device (processing 108).

When transmitting this telephone number, one or more DTFM signals representing the number of digits of the telephone number and the number of DTFM signals corresponding to the number of digits of the telephone number representing the contents of the telephone number are separated by a delimiter such as "#". Send consecutively separated by codes.

Then, reception of a DTMF signal from the receiving device is monitored until a predetermined period of time has elapsed since the telephone number was sent (NO loop of judgments 109 and 110).

Now, when the receiving device receives the DTMF signal from the transmitting device and the result of judgment 207 is YES, it checks whether or not it has received a proper telephone number from the received contents (decision 20
9) When the result of the judgment 209 is YES, the telephone number received at that time is stored as the polling transmission request destination (210), the process of sending r##02J indicating that the telephone number has been received successfully (211); The DC circuit of the line is opened (processing 212), and the state shifts to a polling transmission request standby state in which a polling transmission request is executed when the cause of unreceivable reception occurring at that time is removed (processing 21).
3).

When the transmitting device receives the F signal from the receiving device to the DT and the result of judgment 109 becomes YES, the received content is “##”.
*2" (Judgment 111), and Judgment 11
When the result of step 1 becomes YES, the DC circuit of the line is opened (process 112), and the process shifts to a polling transmission standby state (process 113).

Further, the transmitting device cannot perform appropriate image information transmission in any case when the result of judgment 105 is YES, when the result of judgment 107 is NO, and when the result of judgment 111 is NO. Therefore, the DC circuit of the line is opened (process 114), and the process shifts to a re-call standby state (process 115).

Further, the receiving device determines that the result of determination 208 is YIl! When s is reached, and when the result of judgment 209 is No, the incoming call at that time is ignored and the DC circuit of the line is opened (process 214).

In this way, if the receiving device is unable to receive data, the transmitting device is notified of this fact, and the transmitting device notifies the receiving device of its own terminal's telephone number, and then shifts to a polling transmission standby state. Also.

The receiving device memorizes the telephone number notified by the transmitting device, and when the cause of unreceivable reception occurring in its own terminal is resolved, it issues a polling transmission request with the memorized telephone number as the destination. , the image information that the transmitting device attempts to transmit can be obtained by the receiving device.

FIG. 4 shows a facsimile machine according to another embodiment of the invention. In this figure, the same parts as in FIG. 1 are given the same reference numerals.

In the figure, the voice response device 13 sends, for example, an unreceivable voice message that says "Cannot receive because there is no paper" and a phone number input guidance voice message that says "Please enter your phone number. I will call you." The output audio signal is applied to one switching input terminal of the switching device 14.

The output signal of the modem 9 is applied to the other switching input terminal of the switching device 14, and the output signal of the switching device 14 is applied to the transmission signal input terminal of the network control device 10.

The control unit 1 normally switches the switch 14 to the modem 9 side, and switches the switch 14 to the voice response device 13 side when transmitting the voice signal output from the voice response bag W113 to the line. .

FIG. 5 shows an example of the operation of an operator of another facsimile machine when the other facsimile machine calls this facsimile machine, and FIG. 6 shows an example of the reception processing performed by this facsimile machine.

In the following explanation, the processing steps in FIG. 5 are numbered in the 300s, and the processing steps in FIG.
They are numbered in the 00s.

First, when the operator of the transmitting device performs a predetermined transmission operation and then performs a calling operation to the destination (process 301),
The transmitting device calls the receiving device.

As a result, when the receiving device detects an incoming call (process 401
), it is checked whether reception is possible at that time (process 402), and if reception is possible (result of judgment 403 is YES!S), normal reception processing is started (process 40).
4) Sends a called station identification signal CED notifying that the own terminal is a non-voice terminal.

Also, if reception is not possible (result of judgment 403 is No)
) Closing the DC circuit of the line 405), switching device 14
With voice response device 13 selected in
3, sequentially output the unreceivable voice message and the telephone number input guidance voice message (processing 406);
It is monitored that a DTMF signal is sent from the transmitting device until a predetermined time has elapsed after the completion of sending the voice message (judgments 407 and 408).

On the other hand, the transmitting device receives the called station identification signal CE from the receiving device.
When D is responded, normal transmission processing is executed.

Further, when an unreceivable voice message and a telephone number input guidance voice message are sent from the receiving device, the operator of the transmitting device inputs the telephone number of the own terminal (process 302).

Thereby, the transmitting device sequentially transmits the DTMF signals of the telephone numbers input by the operation to the receiving device in the order of the operation.

Furthermore, when the operator of the transmitting device finishes inputting the first episode number, he inputs the stop key (process 303), and then turns on the polling transmission standby key to set the transmitting device to the polling transmission standby state. (Processing 304)
.

Therefore, the transmitting device opens the direct current circuit of the line when the stop key is operated in step 303, and
When step 04 is executed, the state shifts to a polling transmission standby state.

In the receiving device, each time the transmitting device operator receives a DTMF signal corresponding to the telephone number inputted one digit at a time (result of judgment 407 is YES), the receiving device stores the number corresponding to the received DTPM signal (409). It monitors that the transmitting device opens the line's DC circuit and determines the polarity of the line's DC circuit (hereinafter referred to as polarity).
Judgment 410) When the result of judgment 410 is No, the process returns to judgment 407 to prepare for reception of the next digit DTFM signal.

When the input of the operator's telephone number of the transmitting device is completed and the transmitting device opens the direct current circuit of the line, thereby detecting a polar reversal and the result of judgment 410 becomes YES, the received telephone number is polled and a transmission request is made. Remember it as the destination (process 411), open the DC circuit of the line (process 412)
), the device shifts to a polling transmission request standby state in which a polling transmission request is executed when the cause of unreceivable reception occurring at that time is removed (processing 413).

Further, in the receiving device, when the result of the first judgment 408 is YES, since an appropriate telephone number has not been input, the DC circuit of the line is opened (processing 414).

In this manner, in this embodiment, the receiving device notifies the operator of the transmitting device that reception is not possible by responding with voice guidance, and also prompts the operator of the transmitting device to input the telephone number.

[Effects of the Invention] As described above, according to the present invention, the receiving device responds to the transmitting device with a signal indicating that reception is not possible when receiving an incoming call is detected, and the transmitting device responds to the transmitting device with a signal indicating that reception is not possible. When the signal is answered, a selection signal indicating the telephone number of the own terminal is sent to the receiving device and the device enters a polling transmission standby state. When the cause of unreceivable reception is removed, the receiving device receives the telephone number received from the transmitting device. Since the polling transmission request operation for the destination is performed, when the cause of the receiving device's inability to receive data is resolved, the receiving device issues a polling transmission request to the transmitting device, so the sending device The effect is that the receiving device can obtain the image information that the person was trying to transmit.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a facsimile machine according to an embodiment of the present invention, FIG. 2 is a flowchart showing an example of processing performed by the device in FIG. 1 at the time of transmission, and FIG. FIG. 4 is a block diagram showing a facsimile machine according to another embodiment of the present invention, and FIG. 5 shows an operator of the transmitting device when making a call to the device shown in FIG. 4. FIG. 6 is a flowchart showing an example of the processing performed by the device shown in FIG. 4 at the time of reception. 1... Control unit, 2... System memory, 11...
DTMF signal detector, 13... voice response device, 14.
...Switcher. Figure Figure Figure Figure

Claims (1)

[Claims] The receiving device responds to the transmitting device with a signal indicating that reception is not possible when the receiving device cannot perform the receiving operation upon detecting an incoming call, and the transmitting device
When the reception device responds with a reception failure signal, it sends a selection signal indicating the telephone number of its own terminal to the reception device and shifts to a polling transmission standby state, and when the reception failure cause is removed, the reception device receives a selection signal from the transmission device. A transmission control method for a facsimile machine, comprising performing a polling transmission request operation with a received telephone number as a destination.