JPS60227567A - Facsimile equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a facsimile machine, and more specifically, it has a function that can record a calling telephone number and automatically re-calls after a predetermined period of time if the other party does not respond. The present invention relates to facsimile machines.

[Prior art]

In the past, a facsimile machine was used to call the other party, and if the other party was busy or absent, the user would call the other party again after an appropriate amount of time had elapsed.

If the other party does not respond, as the number of facsimile machines increases, it naturally takes longer to acquire the facsimile line, so the possibility that the other party does not respond increases, and the number of cases where the caller calls back is increasing.

Therefore, a facsimile machine has been proposed that includes an automatic re-transmission device that can automatically make a call again after waiting a predetermined period of time if the other party does not respond.

However, even with facsimile machines equipped with such an automatic redial function, the following inconveniences may occur if the models are of the same model and the time required for automatic redialing is the same, as shown in Figure 1. .

That is, in FIG. 1, symbols A- and F indicate facsimile machines, and symbol G indicates a telephone line.

If we consider a case where C is currently absent and A sends a call to B and B sends a call to C almost simultaneously, as shown in Figure 2, B does not connect to C and B is making a call, so A It is also connected to B.

Therefore, the A'+H facsimile machine having an automatic retransmission device automatically retransmits after a certain period of time has elapsed.

However, since the waiting time before re-calling is set to be the same for models of the same model, the relative relationship between the call times of A and B at the time of re-calling is the same as in the first case, and once again both AB and B are connected to the other party. The other side becomes unresponsive.

That is, unless C responds and B stops retransmitting, AB
Communication between them will no longer be possible.

Unfortunately, the technical standards of Nippon Telegraph and Telephone Public Corporation stipulate that the time required for automatic redialing to occur is no more than two times within 910 minutes. The call must be made manually, and the automatic re-call function cannot be utilized.

As mentioned above, the inconvenience can occur not only between facsimile machines of the same model but also if the waiting time until automatic retransmission is the same, and as the number of facsimile machines increases, this inconvenient phenomenon occurs more frequently.

〔the purpose〕

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional facsimile machine, and is configured to significantly increase the possibility of communicating with the other party by automatic redialing in a facsimile machine having an automatic redialing function. The purpose is to provide facsimile equipment.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the embodiment shown in the drawings.
A block diagram of the control circuit is shown in the figure.

In FIG. 3, the reference numeral 1 indicates a clock that informs the control device 2 of the time, and the reference numeral 3 indicates a dialer that sends a dial tone or dial pulse to the line.

Connected to the control device 2 are an operation panel 4 for inputting a telephone number and operating a facsimile machine, an image reading/storage device 5, an image signal modulation/demodulation device 6, a network control device 7 for controlling lines, and the like.

Moreover, what is indicated by the reference numeral 8 is a nonvolatile memory.

Based on the circuit configuration described above, first, before using the facsimile machine, the operator freely inputs the waiting time until automatic retransmission within a predetermined time range via the operation panel 4. , is stored in the control device 2.

This waiting time is stored in the non-volatile memory within the control device 2, so it only needs to be input once.

j Next, with reference to the flowchart of FIG. 5 and the explanatory diagram of FIG. 4 regarding the operation of the facsimile machine according to the present invention,
The details will be explained below.

First, when the device is started, it is determined in step S1 whether or not a dial input has been made from the operation panel 4. If there is a dial input, this is memorized in step S2, and in step S3, the telephone line , and in accordance with the dial input, the dialer 6 sends a dial signal to the telephone line via the network control device 7 in step S4.

On the other hand, when the line is connected to the other party, the polarity of the calling side line is reversed, so the control device detects this in step S, and if the polarity of the calling side line is reversed, the process proceeds to step S. Image transmission begins.

On the other hand, if it is determined in step S that the polarity is not reversed, the process proceeds to step S6, where it is determined whether or not the polarity of the line is not reversed even after 50 seconds have elapsed.

If there is no reversal of polarity, proceed to step S and release the telephone line, proceed to step S8 and wait for a preset waiting time to elapse, and if the waiting time has been reached, step S
, and automatic re-transmission is performed.

In other words, the stored dial number is sent to the line and the call is made again.

The monitoring time for polarity reversal, and the line hold time, is set at 50 seconds or less according to the technical standards of Nippon Telegraph and Telephone Public Corporation.

Since we have adopted a structure in which the operator can freely set the waiting time within a predetermined time range, there is a small possibility that the waiting time will be the same as in the past, and it is unlikely that the waiting time will be the same as in the past. The possibility of a connection is extremely high.

〔effect〕

As is clear from the above description, according to the present invention, a facsimile machine having an automatic redial function employs a structure in which the waiting time for automatic redialing can be arbitrarily set within a predetermined time range. Therefore, it is extremely unlikely that the waiting time until automatic redialing will be the same as in the past, and the possibility of being connected to the other party due to automatic redialing increases significantly, making facsimile transmission more efficient. It will be done.

[Brief explanation of drawings]

Figures 1 and 2 are for explaining a conventional example, with Figure 1 being an explanatory diagram showing the communication status between facsimile machines, Figure 2 being an explanatory diagram showing the response status between facsimile machines, and Figures 3 and below. 3 is a block diagram of a control circuit, FIG. 4 is an explanatory diagram showing a response state between facsimile machines, and FIG. 5 is a flow chart diagram explaining a control operation. be. 1...Clock 2...Control device 3...Dialer 4...Operation panel 5...Reading storage device 6...Modulation/demodulation circuit 7...Network control device 8
...Non-volatile memory patent applicant Canon Inc.'') Agent Patent attorney Takashi Kato ・1] (-, -2,
,1':4 Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 1

Claims (1)

[Claims] 1. A facsimile device having an automatic re-transmission function, characterized in that the facsimile device is configured such that a waiting time until automatic re-transmission can be arbitrarily set within a predetermined time range.