JPH03226062A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To surely select facsimile reception or automatic answering telephone reception automatically by providing a control section making facsimile reception when a reply signal sent from a transmitter with respect to an initial identification signal is detected and controlling the facsimile equipment to connect the line to the automatic answering telephone set when no reply signal is detected within a prescribed time. CONSTITUTION:A sender side makes dialing to the facsimile equipment, then a ringer signal reaches to the facsimile equipment through a telephone line and the line is closed. The ringer signal is detected by a ringer detection section 4 and informed to a control section 1. Upon the notice of the detection of the ringer signal, the control section 1 commands the detection of a CNG signal (one of facsimile protocol signals) to a MODEM 2 and when the CNG signal is detected within a prescribed time, the facsimile reception is transited. When the CNG signal is not detected for a prescribed time, the control section 1 commands the transmission of a voice message to a voice reply section 3 (guide message urging facsimile communication start and guide message informing waiting of sender side in the case of using the system as a telephone set).

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine, and more particularly to a facsimile machine to which an answering machine can be connected.

[Conventional technology]

Conventionally, facsimile machines that can connect an external answering machine and have the function of automatically switching to receiving a facsimile when the other party is an automatic dialing terminal, and automatically switching to an answering machine when the other party is using a voice terminal, have been able to use a ringer signal to When a call is automatically received, if the CNG signal sent by the automatic calling terminal cannot be detected for a certain period of time, the system switches to an external answering machine, and after the answering machine starts operating, if no voice is detected within a certain period of time, the system switches to facsimile reception. By migrating to the system, it became possible to record messages sent to answering machines and receive faxes.

[Problems to be Solved by the Invention] However, as described above, in conventional facsimile machines, when a call is automatically received by a ringer signal, if the CNG signal sent from the automatic calling terminal cannot be detected for a certain period of time,
If you switch to an external answering machine, but then a silent period cannot be detected due to noise on the telephone line or noise from the other party's handset, rather than a recorded message from the other party, you will not be able to switch to facsimile reception, and the message will not be reliable. The disadvantage is that it is not possible to receive faxes or switch to an answering machine.

(Objective of the Invention) An object of the present invention is to provide a facsimile device that reliably automatically switches to facsimile reception or answering machine.

[Means to solve the problem]

At the time of reception, the facsimile apparatus of the present invention repeatedly transmits an initial identification signal for a certain period of time after the line is closed by a ringer signal, and when it detects a response signal sent from the transmitter, performs facsimile reception, and It has a control section that switches to an answering machine if the response signal is not detected within a certain period of time.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

In FIG. 1, the modem 2 modulates the encoded image signal from the encoder 10, demodulates the image signal from the telephone line, detects the facsimile procedure signal, and sends it to the telephone line according to instructions from the control unit l. conduct. The encoding unit 10 and the decoding unit 11 are M
These circuits execute R, MH encoding, decoding, etc., and are well-known circuits each controlled by the control unit 1. The voice response section 3 sends a voice message to the telephone line under the control of the control section 1. The linker detection unit 4 detects a linker signal from the telephone line and notifies the control unit 1 of the detection. The pseudo linker signal generating section 5 sends out a ringer signal to the connected external answering machine 20. The hook detection unit 6 monitors incoming calls on the answering machine 20 connected to the outside, and the switch 7 controls switching the answering machine 20 between the telephone line and the pseudo ringer generating unit 5. The control unit 1 includes a modem 2. Voice response section 3. Ringer detection section 4, pseudo ringer signal generation section 5. It controls the hook detection unit 6° and the switch 7.

Next, the operation of the facsimile machine of FIG. 1 as a GIII receiving terminal will be explained using the flowchart of FIG. 2 and FIG. 3 together.

When the transmitting side dials the device, a ringer signal arrives from the telephone line to the device and the line is closed. The ringer signal is detected by the ringer detection section 4 and notified to the control section 1.

When the control unit 1 is notified of the detection of the ringer signal, it sends a CNG signal (one of the facsimile procedure signals) to the modem 2.
If a CNG signal is detected within a certain period of time, the process will proceed to facsimile reception. This is an effective method because when the sending side performs automatic transmission, it can immediately switch to facsimile reception.

If the CNG signal cannot be detected for a certain period of time, the control unit 1 sends a voice message to the voice response unit 3 (a guidance message prompting the start of facsimile communication, and a guidance message notifying the sending side to wait when used as a telephone). instructs to send out.

After sending the message, the control unit 1 transmits the CE to the modem 2.
It instructs to send the D signal and the initial identification signal DIS, and to monitor the response from the other party using the facsimile procedure signal. When detecting a response by facsimile procedure signal from the other party, that is, a digital command signal (DO8), the control section 1 instructs the modem 2 to receive a training signal (TCP). Further, the control unit l controls the modem 2 to TCF.
When notified that the signal has been received, after confirming that there is no error, the modem 2 is instructed to receive the image signal.

On the other hand, if a response by the facsimile procedure signal DO3 from the other party to the initial identification signal DIS cannot be detected, the control unit 1 again sends the initial identification signal DI to the modem 2.
S is sent out, and this is repeated at predetermined time intervals. If the voltage at DC8 is detected after the first or second transmission of the initial identification signal, the facsimile receiving operation will begin.

Simultaneously with the start of sending the third initial identification signal DIS, the control unit 1 causes the pseudo ringer signal generator 5 to send the ringer signal to the external answering machine 20 connected to the switching device 7.
Instructs to send pressure via the hook detection unit 6.
The user instructs the answering machine 20 to monitor incoming calls. When the control unit 1 receives a notification from the false detection unit 6 that the answering machine has received an incoming call, the control unit 1 stops the ringer signal from the pseudo linker generating unit 5 and causes the switch 7 to switch the answering machine 20 to the telephone line side. This causes the recording of the other party's message to be recorded in the message storage section of the answering machine 20 (
(not shown).

In addition, the control unit 1 sends an initial identification signal DIS to the modem 2 and detects a response signal DO8 from the time the pseudo linker starts ringing until the hook detection unit 6 notifies the external answering machine 20 of an incoming call. to enable switching to facsimile reception. In other words, if answering machine 2
Response signal DO to DIS before the arrival of 0 is notified
8 is received, the control unit 1 stops generating the ringer signal to the pseudo ringer generating unit 5, and shifts to facsimile reception operation. Also, after sending out the DIS signal, there is a state in which there is no reception of DO8 and no incoming call (hook detection) on the answering machine 20.
When the ringer signal continues for 0 seconds, the ringer signal from the pseudo ringer generator 5 stops, and the process returns to the initial standby state.

〔Effect of the invention〕

As explained above, the present invention, when receiving a facsimile and recording an answering machine using a telephone line, repeats sending an initial identification signal for a certain period of time after the line is closed by a linker signal, and By detecting the incoming facsimile procedure signal (digital command signal), it is possible to reliably switch to facsimile reception, and if the sending side is not a facsimile machine, it is possible to switch to an answering machine after a certain period of time. It has the effect of being able to.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is an operation flowchart of the present invention, and FIG. 3 is a timing chart during GI[1 communication. l...control unit, 2...modem, 3...
...Voice response section, 4.....Linker detection section, 5.
. . . Pseudo ringer signal generation section, 6 . . . Hook detection section, 7 . . . Switching device.

Claims (2)

[Claims] (1) In a facsimile device that can be connected to an external answering machine, after the line is closed by a call signal from the sending side, an initial identification signal (facsimile procedure signal) is repeatedly sent for a certain period of time, and the initial identification signal is On the other hand, if a response signal sent from the transmitter is detected, the facsimile is received, and if the response signal is not detected within the certain period of time, the control unit controls the line to be connected to the answering machine. A facsimile device comprising: (2) When the control unit cannot detect the response signal within the certain period of time, the control unit controls the ringer generation unit to send a pseudo ringer signal to the answering machine, and when the answering machine receives a call by the pseudo ringer signal, the line is closed. A facsimile machine according to claim (1), which connects a facsimile machine to an answering machine.