JPH0388555A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To constitute the equipment so that a dial transmission can be executed by using an automatic answering telephone set even when a power failure occurs by detecting a hook switch from a control system, connecting a telephone circuit to a speech circuit, and also, connecting a handset to this speech circuit at the time of occurring the power failure. CONSTITUTION:When a power source is stopped, muting circuits 6a, 6b and 6c, and a second changeover switch 5 are switched to a connected state, and the muting circuit 6b side, respectively, and a hook switch 4 becomes a state that it is not brought to hook-off. Also, a first changeover switch 2 becomes a state switched to a speech circuit 3 side. In this state, when a handset 7 is held up, the hook switch 4 becomes hook-off, and a telephone circuit 1 is closed. When a telephone number is inputted by using ten keys of a telephone set 16, the speech circuit 3 sends out a dial signal onto the telephone circuit through a first changeover switch 2, and executes a regular calling operation. Thereafter, the other party answers, transmission and reception by the telephone set 16 are executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a facsimile device with a built-in answering machine.

(Prior Art) Conventionally, in this type of facsimile machine, on/off control of a hook switch of a communication circuit constituting an answering machine, and connection control between a recording and playback unit that records/plays messages during an answering machine and the communication circuit are performed. etc. were performed by the control unit of the device. Therefore, if power is no longer supplied to the control unit due to a power outage, etc., this control unit becomes inoperable, making it impossible to make outside calls using an answering machine. Moreover, since the telephone circuit and the recording/playback section are electrically connected in common, the telephone circuit can be operated only by the line current, making it possible to make calls during a power outage. I couldn't even do that.

(Problem H to be solved by the invention) As mentioned above, in conventional facsimile machines with a built-in answering machine, power outages occur because the telephone circuit of the answering machine is not electrically or controllably independent from the above-mentioned device. The drawback was that sometimes it was not possible to use the answering machine to dial out calls.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a facsimile machine that can make dial calls using an answering machine even in the event of a power outage.

[Structure of the invention]

(Means for Solving the Problems) The present invention includes a first switch means for connecting and disconnecting a handset to a communication circuit operated by line current, and a second switch for connecting and disconnecting an audio signal recording and reproducing section from the communication circuit. and a control system for causing a control unit of the device to turn on and off a hook switch that is turned on and off by the handset. an interface means for inputting a control signal from the control section that performs switching control to the first and second switch means in a DC-separated form; and an interface means for inputting an audio signal between the communication circuit and the recording/reproducing section an audio input/output means that performs output in a form where both are separated in terms of direct current, and a telephone line is connected to the telephone line with the hook switch disconnected from the control system when the device is out of power; The present invention is configured to include a control means for connecting the handset to a telephone call circuit and disconnecting the recording/reproducing section from the telephone call circuit by means of the second switch means.

(Function) In the facsimile apparatus of the present invention, the interface means controls the switching of the first and second switch means by DC-separating the control signal from the control section that controls the switching of the first and second switch means. The audio input/output means inputs and outputs audio signals between the communication circuit and the recording/reproducing section in a form that separates the two in terms of direct current.The control means controls the hook switch when the device is out of power. A telephone line is connected to the telephone circuit in a state where it is disconnected from the system, and the handset is connected to the telephone circuit, and the recording and reproducing section is disconnected from the telephone circuit by the second switch means. state.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a block diagram showing an embodiment of a facsimile machine of the present invention. 1 is a telephone line; 2 is a telephone line; A first switch that switches line 1 to either the answering machine's telephone circuit 3 or the facsimile machine's telephone circuit 12; 3 is the telephone circuit of the answering machine; and 4 is a hook that closes and opens the line current. A switch 5 is a second changeover switch 6a, 6b, 6c that switches the audio signal input side of the call circuit 3 to either one of the mute circuits 6b and 6c.
are mute circuits for muting audio signals, each of which has a photocoupler that receives a control signal from the control section 13 in electrically separated form. Reference numeral 7 denotes an inverter for inverting the polarity of the control signal 70 from the control unit 13, and 9a and 9b connect the answering machine side and the recording/reproducing unit 1 side by passing only audio signals. A transformer for electrical isolation, 10 a relay circuit for driving the hook switch 4, 11 a recording/playback section for recording and reproducing messages during answering, 12 a communication circuit for the facsimile, and 13 a facsimile function and an answering machine function. 14 is a ring tone detection circuit that detects a ring tone on the telephone line 1, 15 is a switch drive circuit that drives the second changeover switch 5, and 16 is a telephone set.

Next, the operation of this embodiment will be explained. When a ring tone is sent from the other party via the telephone line 1, the ring tone detection circuit 14 detects it and transmits it to the control unit 13.
Let me know. At this time, if the facsimile machine is set to the automatic reception mode, the control unit 3 operates the first changeover switch 2 by the control signal 50, connects the telephone line 1 to the communication circuit 12, and performs the normal facsimile procedure. Start communication according to. It is assumed that the first changeover switch 2 is normally switched to the communication circuit 3 side.

At this time, if the facsimile machine is set to the answering machine mode, the control unit 3 sends a control signal 60 to the relay circuit 10 to hook off the hook switch 4, thereby closing the telephone line. to tie

Next, the control section 13 transmits the control signal 70 to the mute circuits 6a and 6.
By sending the inverted signal 7e from the inverter 8 to the mute circuit 6c, the mute circuits 6a and 6b are muted and the mute circuit 6c is connected.

Also, at this time, the switch drive circuit 15 switches the second changeover switch 5 to the mute circuit 6C side in response to the control signal 70.

At the same time, the control section 13 causes the recording and reproducing section to perform a reproducing operation using the control signal 80, and transfers the audio signal to the transformer 9b.
, is input to the telephone call circuit 3 via the mute circuit 6C.

The telephone call circuit 3 transfers the input audio signal to the first changeover switch 2.
to the telephone line 1 and transmit it to the other party's station. Next, the control section) 3 controls the recording/reproducing section 1 by the control signal 80.
1 is operated for recording, and the audio signal sent from the other station is inputted to the recording and reproducing section 11 via the changeover switch 2, the communication circuit 3, and the transformer 9a, and is recorded. Thereafter, when the line is released, the control unit 13 returns to the standby state.

Next, a transmission operation when the power supply to the facsimile machine is stopped due to a power outage or the like will be explained. When the power source is stopped, the mute circuits 6a, 6b, and 6c are connected, the second changeover switch 5 is switched to the mute circuit 6b side, and the hook switch 4 is not hooked off by relay #110. Also, the first changeover switch 2
is switched to the communication circuit 3 side. In this state,
When the handset 7 is lifted, the hook switch 4 is hooked off and the telephone line 1 is closed. As a result, line current is supplied to the telephone call circuit 3 to enable this circuit, and since the handset 7 is connected to the telephone call circuit 3 via the mute circuits 6a and 6b, the telephone 16 (not shown) When a telephone number is input using the numeric keypad, the call diagram H3 sends a dial signal onto the telephone line via the first changeover switch 2, and performs a normal call operation. Thereafter, when the other party answers, the telephone 16 transmits and receives calls.

According to this embodiment, the telephone 16 is connected to the mute circuits 6a and 6.
b, 6c photocoupler section 61 and relay circuit '1111
10 electrically separates it from the control system of the control unit 13 so that it can operate as a simple telephone in the event of a power outage,
Since it is electrically separated from the recording/reproducing section ll by transformers 9a and 9b, the telephone call circuit 3 can be constantly operated by the line current, and even in the event of a power outage, it is possible to manually make a call using the telephone call circuit 3. .

〔Effect of the invention〕

As described above, according to the facsimile apparatus of the present invention, it is possible to make a dial call using an answering machine even in the event of a power outage.

[Brief explanation of drawings]

The figure is a block diagram showing an embodiment of a facsimile apparatus of the present invention. 2...First changeover switch 3.12...Telephone circuit 4...Hook switch 5...Second changeover switch 6a, 6b, 6cm・Mute circuit 7...Handset 9a, 9b...Transformer 10... Relay circuit 11... Recording and reproducing section 13... Control section

Claims (1)

[Claims] a first switch means for connecting and disconnecting the handset to a communication circuit operated by line current; a second switch means for connecting and disconnecting a voice signal recording and reproducing section to the communication circuit; and a hook turned on and off by the handset. In a facsimile machine with a built-in answering machine, the control system includes a control system that turns a switch on and off by a control unit of the apparatus, and a control signal from the control unit that controls switching between the first and second switch means. an interface means for inputting audio signals to the first and second switch means in a DC-separated form; and input/output of audio signals between the communication circuit and the recording/reproducing section in a DC-separated form; When the audio input/output means and the device are out of power, the hook switch is disconnected from the control system, a telephone line is connected to the communication circuit, and the handset is connected to the communication circuit. A facsimile apparatus comprising: control means for disconnecting the recording/reproducing section from the communication circuit by the second switch means.