JPH0537755A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent reproduction of a CNG signal recorded when an automatic answering telephone set replies an incoming call by controlling the facsimile equipment so that a DTMF signal is generated to command delete of a recording content upon the detection of the CNG signal. CONSTITUTION:A control circuit 1 detecting a CNG signal through the detection of the CNG signal by a detection circuit 9 controls a DTMF signal generating circuit 10 to generate a prescribed DTMF signal and it is fed to an automatic answering telephone set 11. The automatic answering telephone set 11 receiving the DTMF signal releases the recording mode to rewind a recording tape at the recording start position at the incoming call and to set the tape to the recording standby state at the succeeding time. Thus, when the recording is started at the succeeding call, the CNG signal recorded precedingly is deleted and when the tape recording a message of the automatic answering telephone set 11 is reproduced, a sense of displeasure resulting from reproduction of a facsimile signal is less. Furthermore, the reduction in recording items of the message due to useless recording of the CNG signal is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine to which an answering machine can be connected or incorporated.

[0002]

2. Description of the Related Art Recent facsimile machines have been developed which can be connected to or have a built-in answering machine as shown in, for example, Japanese Patent Laid-Open No. 63-63280. When an incoming call arrives, the answering machine responds, and after sending a response message, the caller's message is recorded on a tape or a memory.

On the other hand, when the recording is started, the facsimile machine monitors whether or not the CNG signal for instructing the facsimile transmission is transmitted from the transmitting side after receiving the incoming call, and when the CNG signal is detected, the telephone line is connected to the telephone. To a facsimile machine to receive a facsimile.

[0004]

By the way, when the answering machine answers the incoming call and starts recording, if the calling side is a facsimile machine, the CNG signal of the control signal for the facsimile machine is recorded. When the answering machine is replayed later, the facsimile signal is replayed, which is uncomfortable. In addition, there is a problem that the number of message recordings is substantially reduced by recording useless CNG signals.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and includes an answering machine which can be controlled by a DTMF signal of a telephone, a CNG signal detecting circuit,
It is composed of means for generating a DTMF signal for instructing the answering machine to erase recorded contents, and control means for controlling to generate a DTMF signal for instructing to erase recorded contents when a CNG signal is detected.

[0006]

Since the present invention is constructed as described above, the answering machine responds to the incoming call by the answering machine, and the calling side is the CN by the facsimile machine.
Even if the G signal is recorded, upon detection of the CNG signal, a signal for instructing the answering machine to erase the recording of the CNG signal is supplied and the CNG signal is erased.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the structure of a facsimile machine. (1) is a control device for controlling the entire facsimile machine, which is composed of a microprocessor.
Each unit is controlled according to the program in the program memory (2) in which the processing program is stored. Further, the control device (1) performs signal processing of the read transmission original data and processing of the received signal, and also generates various control signals. A reading unit (3) optically reads a transmission original, converts the read black-and-white data into an electric signal, and supplies the electric signal to the control device (1). The reading unit includes a document transfer mechanism, a lens mechanism, an illumination mechanism, and an image sensor. Has been done.
A recording unit (4) drives a recording head such as a thermal head to perform printing under the control of the control device (1) based on a received signal, and is composed of a recording paper, a recording paper transfer mechanism and a recording head.

(5) is a keyboard composed of communication keys, mode keys, ten keys, etc. The control device (1) which takes in the key signal controls according to the program of the program memory (2) according to the key signal. (6) is data input from the keyboard (5) or control device (1)
This is a display device for displaying data processed by the above, and is composed of a dot matrix type liquid crystal display device. A modem circuit (7) is connected to the telephone line (L) via the line switching circuit (8) and performs modulation processing of a signal to be transmitted and demodulation processing of a received signal. Further, the modem circuit (7) has a built-in facsimile CNG signal detection circuit (9) and outputs a detection signal to the control device (1) when a CNG signal is detected. (10) is a DTMF signal signal generation circuit, which is generated under the control of the control device (1). (8) is an answering machine (11) on the telephone line (L)
A line switching circuit for switching and connecting the modem circuit (7) to each other, which is composed of a relay circuit and is switch-controlled by the control device (1). A capacitor (12) is connected between the telephone line (L) and the modem circuit (7) in the line switching circuit (8), and a relay contact (13) is provided in the answering machine (11).
The facsimile signal arriving at the telephone line (L) can be transmitted to the modem circuit (7) even during the period of switching to the side. Further, the line switching circuit (8) is provided with an incoming call detection circuit (14) for detecting an incoming call bell signal, and outputs a detection signal to the control device (1). Reference numeral (15) is a detection circuit for detecting the operating state of the answering machine (11), which outputs a detection signal to the control device (1). Reference numeral (16) is a speaker for notifying an incoming call. Although the answering machine (11) is well known and will not be described in detail, the function of sending a response message to the caller in response to an incoming call, the function of recording the caller's message and the DTM from the outside.
It has a remote control function controlled by the F signal.

Next, the operation of the present invention having such a configuration will be described.

First, in the line switching circuit (8), the relay contact (13) is switched to the answering machine (11) side in the standby state, and when the user goes out, the answering machine (11) is sent.
When using, the answering machine (11) and the facsimile machine are set to the out-of-office mode. In the standby state, the control device (1) detects the presence or absence of an incoming call in step (S1). When the incoming call is detected by the detection output of the incoming call detection circuit (14), the process proceeds to step (S2) and the speaker ( 16) is driven to notify the incoming call. At the same time, the built-in incoming call notification means of the answering machine (11) also sounds. After driving the speaker (16), the control device (1) proceeds to step (S
It proceeds to step 3) to determine whether or not the outing mode is set, and if it is not set to the outing mode, the step proceeds to step (S9) to control the line switching circuit (8) to set the relay contact (13) to the modem circuit. Switching to the (7) side, reception is performed in steps (S10) and (S11). On the other hand, when the outing mode is set, the process proceeds from step (S3) to step (S4) to check the output of the detection circuit (15) to determine whether or not the answering machine (11) has answered. If no response is made, the process proceeds to step (S5), and if it is determined that the incoming notification of the speaker (16) has been performed a predetermined number of times and the predetermined number is not reached, the process proceeds to step (S2) and the speaker (16 ) Is driven, and when the predetermined number of times is reached, steps (S9) to (S9)
Proceed to 11) and perform reception in the same manner as described above.

On the other hand, the control device (1) which has detected the response from the answering machine (11) in step (S4) proceeds to step (S6) and enters the CNG signal detection state. At this time, the answering machine (11) has already responded to the incoming call, plays the response message, sends it to the telephone line (L), transmits the response message to the caller, and then sets the caller's message message recording mode. Has been done. If the caller is intended for a call, the caller's message is recorded on the answering machine (11). During this time, the control device (1) detects the CNG signal detection and the operation end of the answering machine (11) in steps (S6) and (S7), but when the caller has a call purpose, the CNG signal is not transmitted. Therefore, when the operation end of the answering machine (11) is detected in step (S7), it returns to the standby state.

On the other hand, when the sender is intended for facsimile communication, while the answering machine (11) responds to the incoming call and is set to the recording mode of the message,
The CNG signal is transmitted from the facsimile machine on the calling side, the CNG signal is recorded by the answering machine (11), and the CNG signal is detected by the detection circuit (9). The control device (1) which has detected the CNG signal controls the DTMF signal generation circuit (10) in step (S8) to generate a predetermined DTMF signal and supplies it to the answering machine (11). In the answering machine (11) that has received this DTMF signal, the recording mode is released, the recording tape is rewound to the recording start position for this incoming call, and the recording standby state for the next incoming call is set. Therefore, when the next incoming call is received and recording is started, the CNG signal previously recorded is erased. In the system in which the message is recorded in the memory, the recording start address may be restored by receiving the DTMF signal. Step (S
The control device (1) which has sent out the DTMF signal in 8) proceeds to steps (S9) to (S11) and starts the receiving operation in the same manner as described above, and returns to the standby state when the reception is completed.

In the above-described embodiment, the CNG signal is detected to return to the recording start position. In this case, however, since the last recorded CNG signal is reproduced, erasing is performed when returning to the recording start position. It may be started.

[0015]

As described above, in the facsimile apparatus of the present invention, when the answering machine responds to an incoming call and the message recording mode is entered and the CNG signal from the calling side is recorded, the CNG signal is transmitted.
Sends a DTMF signal to the answering machine by detecting the signal,
By canceling the recording mode, rewinding the recording tape to the recording start position, or returning to the recording start address of the memory, even if the answering machine answers the incoming call and records the CNG signal of the facsimile signal, it is erased and played. Therefore, there is no problem that the facsimile signal is reproduced when the message tape of the answering machine is reproduced, and there is no discomfort, and the number of message recordings is reduced due to unnecessary recording of the CNG signal. It is a solution, and it has a great practical effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a facsimile apparatus of the present invention.

FIG. 2 is a flowchart showing the operation of FIG.

[Explanation of symbols]

 1 Control Device 3 Reading Unit 4 Recording Unit 7 Modem Circuit 8 Line Switching Circuit 9 CNG Signal Detection Circuit 10 DTMF Signal Generation Circuit 11 Answering Machine

Claims (1)

Claims: 1. In a facsimile machine to which an answering machine which can be controlled by a DTMF signal of a telephone can be connected or incorporated, a CNG signal detecting circuit and an answering machine are instructed to erase recorded contents. And a control means for controlling to generate a DTMF signal for instructing deletion of recorded contents when a CNG signal is detected.