JP2732680B2 - Facsimile machine - Google Patents

Description

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

2. Description of the Related Art Conventionally, in a facsimile apparatus of this type, on / off control of a hook switch of a call circuit constituting an answering machine, and connection control between a recording / reproducing unit for recording / playing a message at the time of answering machine and the call circuit. Etc. were performed by the control unit of the apparatus. Therefore, when power is not supplied to the control unit due to a power failure or the like, the control unit becomes inoperable, and there is a disadvantage that it is impossible to make an outgoing call using an answering machine. In addition, since the communication circuit and the recording / reproducing unit are electrically connected in common, it was not possible to operate the communication circuit only by the line current to perform the transmission at the time of the power failure.

(Problems to be Solved by the Invention) As described above, in a conventional facsimile apparatus with a built-in answering machine, the call circuit of the answering machine is neither electrically nor controllable to the apparatus, so that at the time of a power failure, There is a disadvantage that dialing cannot be performed using an answering machine.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a facsimile apparatus capable of making a dial call using an answering machine even during a power failure.

[Configuration of the invention]

(Means for Solving the Problems) According to the present invention, first switch means for connecting / disconnecting a handset to / from a communication circuit operated by line current, and second switch for connecting / disconnecting a voice signal recording / reproducing unit to / from the communication circuit. Means, and a control system for turning on and off a hook switch turned on and off by the handset by a control unit of the apparatus, so that the first and second switch means are provided in a facsimile apparatus having a built-in answering machine. Interface means for inputting a control signal from the control section for performing switching control to the first and second switch means in a form separated in a DC manner, and inputting of an audio signal between the communication circuit and the recording / reproducing section. Voice input / output means for performing output in a form in which both are separated by direct current, and the hook switch is disconnected from the control system at the time of power failure of the device As a state, a telephone line is connected to the communication circuit, and the handset is connected to the communication circuit, and the recording / reproducing unit is disconnected from the communication circuit by the second switch means. And a control unit.

(Operation) In the facsimile apparatus according to the present invention, the interface means includes a first switch and a second switch which are separated from each other in a DC manner by a control signal from the control unit for performing switching control of the first and second switch means. Enter in the means. The voice input / output means performs input / output of a voice signal between the communication circuit and the recording / reproducing section in a form in which both are separated in direct current. The control means disconnects the hook switch from the control system to connect the telephone line to the communication circuit when the device is out of power, and connects the handset to the communication circuit to perform the recording and reproduction. The unit is separated from the communication circuit by the second switch means.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of the facsimile apparatus of the present invention. 1 is a telephone line, 2 is a first changeover switch for switching the telephone line 1 to either the telephone circuit 3 on the answering machine side or the telephone circuit 12 on the facsimile machine side, 3 is the telephone circuit on the answering machine side, and 4 is the line current. A hook switch for closing and opening the switch, 5 a second switch for switching the input side of the audio signal of the passage circuit 3 to one of the mute circuits 6b and 6c, 6a, 6b and 6c a mute for muting the audio signal Each circuit has a photocoupler that receives a control signal from the control unit 13 in an electrically separated form. 7 is a handset on the answering machine side for transmitting and receiving, 8 is an inverter for inverting the polarity of the control signal 70 from the control section 13, and 9a and 9b pass only the voice signal to the answering machine side and the recording / reproducing section 11 side. A transformer for electrically insulating, 10 is a relay circuit for driving the hook switch 4, 11 is a recording / reproducing unit for recording and reproducing a message at the time of answering machine, 12 is a communication circuit on the facsimile side, 13 is a facsimile function and an answering machine function. Control unit for controlling the 14
Is a ring tone detection circuit for detecting a ring tone on the telephone line 1, 15 is a switch drive circuit for driving the second changeover switch 5, and 16 is a telephone part.

Next, the operation of this embodiment will be described. When a ring tone is sent from the partner station via the telephone line 1, the ring tone detection circuit 14 detects this and notifies the control unit 13 of this. At this time, if the facsimile apparatus is set to the automatic reception mode, the control unit 13 operates the first changeover switch 2 by the control signal 50 to switch the telephone line 1 to the communication circuit 12.
And starts communication according to a normal facsimile normal procedure. It is assumed that the first switch 2 is normally switched to the communication circuit 3 side.

At this time, if the facsimile apparatus is set to the answering mode by answering machine, the control unit 13 sends the control signal
The telephone line 1 is closed by sending 60 to the relay circuit 10 to hook off the hook switch 4.

Next, the control unit 13 sends the control signal 70 to the mute circuits 6a and 6b, and sends the inversion signal 71 from the inverter 8 to the mute circuit 6c, so that the mute circuits 6a and 6b are in the mute state and the mute circuit 6c is in the connected state. I do. At this time, the switch drive circuit 15 switches the second changeover switch 5 to the mute circuit 6c side by the control signal 70. At the same time, the control unit 13 causes the recording / reproducing unit 11 to perform a reproducing operation according to the control signal 80, and causes the audio signal to be input to the communication circuit 3 via the transformer 9b and the mute circuit 6c. The communication circuit 3 transmits the input voice signal to the telephone line 1 via the first changeover switch 2 and transmits the signal to the partner station. Next, the control unit 13 causes the recording / reproducing unit 11 to perform a recording operation according to the control signal 80, and transmits the audio signal transmitted from the partner station to the recording / reproducing unit 11 via the first switch 2, the communication circuit 3, and the transformer 9a. Enter and record this. Thereafter, when the line is released, the control unit 13 returns to the standby state.

Next, a transmission operation when the power supply of the facsimile machine is stopped due to a power failure or the like will be described. When the power supply is stopped, the mute circuits 6a, 6b, and 6c are connected, the second switch 5 is switched to the mute circuit 6b, and the hook switch 4 is not hooked off by the relay circuit 10. Further, the first changeover switch 2 is in a state of being switched to the communication circuit 3 side. When the handset 7 is lifted in this state, the hook switch 4 is hooked off and the telephone line 1 is closed. As a result, the line current is supplied to the communication circuit 3 to make the circuit operable, and the handset 7 is connected to the communication circuit 3 via the mute circuits 6a and 6b. When a telephone number is input using the numeric keypad, the communication circuit 3 sends a dial signal to the telephone line via the first switch 2 to perform a normal calling operation. Thereafter, when the other party answers, transmission and reception by the telephone set 16 is performed.

According to the present embodiment, the telephone 16 is connected to the mute circuits 6a, 6b,
Control unit by 6c photocoupler unit 61 and relay circuit 10
13 and is electrically separated from the recording / reproducing unit 11 by the transformers 9a and 9b, so that the communication circuit 3 is always operated by the line current. The communication circuit 3 can be operated and a call can be manually transmitted even during a power failure.

〔The invention's effect〕

As described above, according to the facsimile apparatus of the present invention,
Dial outgoing calls can be made using an answering machine during a power outage.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the facsimile apparatus of the present invention. 2 First switch 3, 12 Talking circuit 4 Hook switch 5 Second switch 6a, 6b, 6c Mute circuit 7 Handset 9a, 9b Transformer 10 Relay circuit 11 Recording / reproducing unit 13 Control unit 15 Switch drive circuit 16 Telephone

Claims (1)

(57) [Claims] 1. A first switch means for connecting / disconnecting a handset to / from a communication circuit operated by line current, a second switch means for connecting / disconnecting a recording / reproducing unit for an audio signal to / from the communication circuit, and turned on by the handset. A control system for turning on and off a hook switch to be turned off by a control unit of the apparatus, so as to control the switching of the first and second switch means in a facsimile apparatus having a built-in answering machine. Interface means for inputting control signals from the unit to the first and second switch means in a form separated by direct current, and input / output of audio signals between the communication circuit and the recording / reproducing unit. Voice input / output means to be performed in a separated form, and in a case of a power outage of the device, the hook switch is disconnected from the control system to the communication circuit. And a state of being connected to the telephone line, and,
A facsimile apparatus, further comprising control means for connecting the handset to the communication circuit and setting the recording / reproducing unit to be disconnected from the communication circuit by the second switch means.