JPH04132445A - Message recording and reproducing circuit for communication terminal equipment - Google Patents

Abstract

PURPOSE:To omit an exclusive microphone for message recording by supplying a drive current to a handset disconnected from a communication line via a changeover switch and using the handset so as to attain message recording. CONSTITUTION:The circuit is provided with a current supply circuit 42 outputting a drive current and a changeover switch 41 switched at the interrupt between a communication line 1 and a handset 26 and supplying the drive current outputted from the current supply circuit 42 to the handset 26 and connecting the handset 26 to a voice recording reproducing circuit 44. In this case, the handset 26 is made usable by a drive current outputted from the current supply circuit 42 outputted at the interrupt between the communication line 1 and the handset 26 and a message is recorded to the voice recording and reproducing circuit 44 by using the handset 26. Thus, an exclusive microphone for message recording is not required.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a message recording and reproducing circuit for communication terminal equipment such as a facsimile machine and an answering machine.

(Prior Art) Conventionally, a message recording/reproducing circuit is provided in a communication terminal device such as a facsimile machine or an answering machine, and a message such as an answering machine is recorded by a user in advance.
Various circuits have been proposed in which when a person is unable to answer an incoming call due to being out of the house, etc., the message recording/reproducing circuit automatically answers the other party with a message recorded in the message recording/reproducing circuit. That-
An example is shown in FIG.

FIG. 2 is a block diagram showing an example of the configuration of a facsimile machine equipped with a conventional message recording/reproducing circuit.

This facsimile device can communicate times! ! The facsimile main body 10 and an external telephone set 20 or a built-in handset 26 are switched by the switching circuit I@2.

The switching circuit 2 is composed of a changeover switch 2a and a hybrid transformer 2b.
A facsimile main body 10 is connected to the adder 3, and a message recording/reproducing circuit 1 830 yen is also connected thereto.

The facsimile main body 10 includes a reading unit 11 that includes an image sensor or the like that reads an input document Din, and a recording unit 12 that uses a thermal recording method or the like that prints received image data onto recording paper.
These are connected to a modem (modulation/demodulation device) 14 via an image processing section 13. The image processing unit 13
The modem 14 has a function of compressing/decompressing image data, and further has a function of modulating and demodulating transmission data.

The message recording and reproducing circuit 30 connected to the adder 3 is
A dedicated microphone 31 for message recording and the dedicated microphone 3
The audio recording/reproducing circuit 32 is comprised of a semiconductor memory, a magnetic tape, etc., and records the output of the message 1 and reproduces the recorded message.

An external telephone 20 and a rectifier circuit 21 are connected to the changeover switch 2a.

A hook switch 22 that turns on and off in conjunction with lifting of the built-in handset 26 is connected to the rectifier circuit 1121, and a tone pulse dial generator 1iI823 is also connected to the hook switch 22. Connected to the tone pulse dial generation diagram 123 are a keyboard 24 having a plurality of pushbuttons and a telephone call circuit 25 comprising an amplifier and the like, and a built-in handset 26 is connected to the telephone call circuit 25.

Furthermore, this facsimile device is provided with a control section 35 composed of a central processing unit (hereinafter referred to as CPU) that controls the entire device. It is configured to control the built-in handset 26 and the like.

Next, the operation will be explained.

In the case of automatic reception, the telephone number, S! Calling signal via 1 IR
When the facsimile is sent, the changeover switch 2a is switched to the facsimile main body 10 side under the control of the control section 35. Then, the sent facsimile signal is demodulated by the modem 14 in the facsimile body 10 via the hybrid transformer 2b, and the output of the modem 14 is decompressed by the image processing section 13 and printed on recording paper by the recording section 12. .

In the case of manual reception, a calling signal IR is sent from the communication line 1. Then, since the changeover switch 2a has already been switched to the external telephone 20 and built-in handset 26 sides, a ringing tone sounds. Therefore, for example, by picking up the handset of the external telephone 20, it becomes possible to talk to the other party via the communication line 1. After the end of the call, when the keyboard 24 is operated to set the facsimile reception mode, the changeover switch 2a is switched to the facsimile main body 10 side under the control of the control section 35, and the facsimile main body 10 can receive facsimile signals.

Next, the operation of the message recording/reproducing circuit 30 will be explained.

For example, if the user wants to record a message such as an answering message in advance, the user operates the keyboard 24 to set the recording mode. Then, power is supplied to the dedicated microphone 31 and the audio recording/reproducing circuit 32. When the user generates a message into the dedicated microphone 31, the output of the dedicated microphone 31 is input to the voice recording/playback circuit F#I32, and the message is recorded. If you operate the keyboard 24 to set the answering mode when you go out, etc., when there is an incoming call via the communication line 1, the control unit 3
5, the changeover switch 2a is switched to the message recording/reproducing circuit 30 side, and the message recorded in the voice recording/reproducing circuit 32 can be heard by the calling party.

(Problem to be Solved by the Invention) However, message recording/playback #r3 with the above configuration
0 had the following issues.

When recording a message on the voice recording and reproducing circuit 32, the message recording and reproducing circuit 30 is operated while being disconnected from the communication line 1 by the changeover switch 2a. Therefore, the drive current supplied from the communication circuit IJil <for example,
Since it is not possible to record and play back messages using DC48V, a dedicated microphone 31 for message recording is required.
Is required.

When attaching the dedicated microphone 31 to a facsimile machine, it must be installed in a position where voice can be easily recorded and where it does not interfere with other attached parts of the device, but there are restrictions on its installation. It was difficult to install it in the optimal position. Furthermore, when a user wants to record a message, the user must speak the message out loud into the dedicated microphone 31, which is a troublesome recording operation, making it difficult for the user to easily and easily record the message. There was a problem.

Such problems also apply to message recording and reproducing circuits provided in other communication terminal equipment such as answering machines.

The present invention provides a message recording and reproducing circuit for communication terminal equipment that solves the problems of the prior art, such as the fact that the mounting of a dedicated microphone is restricted in its position and the recording operation becomes complicated.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention is provided in a communication terminal device equipped with a handset that performs a telephone call using a drive current supplied from a communication line. In a message recording and reproducing circuit of a communication terminal device having a voice recording and reproducing circuit for recording and reproducing messages for transmission on a line, a current supply circuit that outputs the drive current and a current supply circuit that is switched when the communication line and the handset are disconnected. and a changeover switch for supplying the drive current outputted from the current supply circuit to the handset and for maintaining the handset to the voice recording and reproducing circuit.

(Function) According to the present invention, since the message recording and reproducing circuit of the communication terminal equipment is configured as described above, when recording a message using the message recording and reproducing circuit, the communication line and the handset are connected in order to avoid interference. is cut off by a switching circuit or the like, and the message recording/reproducing circuit becomes ready for recording operation. When the communication line and the handset are disconnected, the changeover switch supplies the output of the current supply circuit to the handset and connects the handset to the voice recording and reproducing circuit. As a result, the handset becomes ready for use by the drive current output from the current supply circuit, and the handset can be used to record a message to the voice recording/reproducing circuit. Therefore, there is no need for a conventional dedicated microphone for message recording, and messages can be recorded using a handset provided in the communication terminal device. Therefore, the above problem can be solved.

(Embodiment) FIG. 1 is a schematic block diagram of a facsimile machine equipped with a message recording and reproducing circuit showing an embodiment of the present invention. It is marked with the symbol.

The difference between this facsimile device and conventional devices is that
In place of the message recording and reproducing circuit 30 shown in the figure, a message recording and reproducing circuit 40 having a different circuit configuration in which the dedicated microphone 31 is omitted is provided, and this message recording and reproducing circuit 4
In order to control the entire facsimile machine including 0,
This is because a control section 45 having a configuration different from that of the control section 35 shown in FIG. 2 is provided.

The message recording and reproducing circuit 40 is connected to a changeover switch 2a, and externally connected to the telephone 20 and the rectifier circuit 21 (a changeover switch 4 that switches between the @ and message recording and reproducing circuit 40 sides).
1. An audio recording and reproducing circuit 44 is connected to this changeover switch 41 via a current supply circuit 42 and a signal detection circuit 43.

The current supply circuit 42 is a circuit that outputs the same drive current (DC48V) as the drive current supplied from the communication line 1, for example, and is constituted by a power supply circuit using a transistor or the like. The signal detection circuit 43 is a circuit that cuts off a direct current component from the voice signal from the external telephone 20 or the built-in handset 26 and supplies it to the voice recording/reproducing circuit 44, and is composed of a capacitor or the like. The voice recording/reproducing circuit 44 is a circuit for recording and reproducing a message, and is composed of a semiconductor memory, a magnetic tape, etc., and its reproduced output is supplied to the adder 3 .

Further, the control section 45 that controls the entire facsimile apparatus controls switching of the changeover switches 2 and 14', controls the operation of the facsimile main body 10, controls detection of the on and off states of the hook switch 22, and controls the tone pulse dial generation circuit 23. In addition to controlling the keyboard 24, switching control of the changeover switch 41 in the message recording/playback diagram 840 and voice recording/playback diagram ii'! It has the function of controlling the operations of 44, etc., and is composed of a CPU and the like.

Each operation of the facsimile apparatus configured as described above in (1) message recording mode, (2) manual reception mode, (3) automatic reception mode, and (4) transmission mode will be explained.

(1) Message recording mode When the user performs a message recording start operation using the keyboard 24, the voice recording/playback circuit 44 is powered on under the control of the control unit 45, and the changeover switch 41 is turned on.
is switched from the communication line 1 side to the current supply circuit 42@. Then, the drive current output from the current supply circuit 42 is supplied to the external telephone 20 and the built-in handset 26 through the changeover switch 41, and the external telephone 20 and the built-in handset 26 can be used. At the same time, the external telephone 20 and built-in handset 26 are set by the selector switch 4
1, it is separated from the communication line 1.

In this state, the built-in handset 26 or the external telephone 2
When a message is generated from 0, the built-in handset 26
The message signal is sent to the current supply circuit 42 via the speech circuit 25, tone pulse dial generation circuit 23, hook switch 22, rectification circuit 21, and changeover switch 41. Further, a message signal from the external telephone 20 is sent to the current supply circuit 42 via the changeover switch 41. The message signal sent to the current supply circuit 42 side passes through the current supply circuit 42, and the signal detection circuit 43 cuts off the DC component and extracts only the analog audio waveform. recorded in

(2) Manual reception mode In the manual reception mode, when message playback mode is set using the keyboard 24 when going out, etc., when there is an incoming call via the communication line 1, the changeover switch 2a is activated under the control of the control unit 45. is switched, and the control section 45 responds.

After the response, the control unit 45 controls the voice recording and playback diagram #1.
44 operates, and the message recorded in the voice recording and reproducing circuit 44 is reproduced and sent to the calling party via the adder 3, the hybrid transformer 2b, the changeover switch 2a, and the communication line 1.

(3) Automatic reception mode As in the conventional case, when the automatic reception mode is set by operating the keyboard 24, the changeover switch 2a is switched to the facsimile main body 10 side under the control of the control section 45. and,
Communication diagram! The facsimile signal sent from t1 is sent to the facsimile main body 10 side via the changeover switch 2a and the hybrid transformer 2b. On the side of the facsimile main body 1o, the sent facsimile signal is demodulated by the modem 14, further decompressed by the image processing section 13, and then sent to the recording section 12 and printed on recording paper.

4) Transmission mode In this transmission mode, as in the past, the keyboard 24 is used to set the transmission mode, and the input document Din is sent to the reading unit 1.
Insert into 1. The inserted input document Din is read by the reading section 11
The signal is scanned, read as a -dimensional time-series signal, and sent to the image processing section 13. In order to reduce the amount of data to be transmitted, the image processing unit 13 performs -dimensional or two-dimensional data compression, and the data is modulated by the modem 14. This modulated facsimile signal is sent to the communication line 1 via the adder 3, the hybrid transformer 2b, and the changeover switch 2a.

In this embodiment, in the message recording mode, the drive current output from the current supply 4i42 is changed to the selector switch 41.
Since the external connection is supplied to the telephone 20 and the built-in handset 26 through the external connection, the telephone 2 and the built-in handset 26 can be used for the external connection disconnected from the communication line 1. Therefore, when a message is generated using the external telephone 20 or the built-in handset 26, the message signal is recorded in the recording/reproducing circuit 44. Therefore, the dedicated microphone 31 for message recording as in the past can be omitted, and the dedicated microphone 31 can be installed without considering its position.Furthermore, instead of the dedicated microphone 31, the external telephone 2o or the built-in handset 26 can be used. You can easily and easily record messages.

It should be noted that the present invention is not limited to the above embodiment, and for example, the facsimile apparatus shown in FIG. 1 may be modified to have other circuit configurations.

Furthermore, the message recording and reproducing circuit of the present invention is applicable not only to facsimile machines but also to other communication terminals such as answering machines that require message recording.

(Effects of the Invention) As described in detail above, according to the present invention, when recording a message, the drive is output from the current supply circuit via the changeover switch to the handset disconnected from the communication line. Now that the current is supplied, the handset can be used. Therefore, by generating a message using the handset, the message signal is recorded in the voice recording and reproducing circuit. This eliminates the need for a dedicated microphone for message recording, which is required in the past.
When installing a dedicated microphone, there is no need to consider the position. moreover,
Message recording can be easily and conveniently performed using a handset. Therefore, it is applicable to various communication terminal devices such as facsimile machines and answering machines that require message recording.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram of a facsimile machine equipped with a message recording/playback circuit according to an embodiment of the present invention, and FIG. 2 is a schematic block diagram of a facsimile machine equipped with a conventional message recording/playback circuit. . 1...Communication line, 2...Switching circuit, 3...Adder, 10...Facsimile body, 2o...External telephone set, 26...Built-in handset, 4o...Message recording Regeneration circuit, 41... changeover switch, 42...
Current supply circuit, 43... Signal detection circuit, 44... Audio recording/playback circuit, 45... Control circuit.

Claims (1)

[Scope of Claims] A voice recording and reproducing circuit that is provided in a communication terminal device equipped with a handset that performs a call using a drive current supplied from a communication line, and that records and plays back a message for transmission to the communication line. A message recording and reproducing circuit for a communication terminal device, comprising: a current supply circuit that outputs the drive current; and a drive current that is switched when the communication line and the handset are disconnected and is output from the current supply circuit to the handset. A message recording/reproducing circuit for communication terminal equipment, further comprising: a changeover switch for connecting the handset to the voice recording/reproducing circuit.