JPH0490251A - Picture communication equipment - Google Patents

Abstract

PURPOSE:To record a talking voice signal regardless of the configuration of a manual voice communication means by providing a control means extracting an input output analog signal of a manual voice communication means, inputting the signal to an automatic voice communication means and recording the signal therein and detecting a line loop state to a line input output section. CONSTITUTION:When the operator uses a handset 14 for talking at its house and desires recording of the talking with an operation section 41, a control section 40 sets an ICM talking recording reproducing section 26 into the operating state recording an analog signal output of a DC loop polarity inversion detection section 1 and records the signal onto a magnetic tape 28. A change in a DC loop current on a line is separated and sent to an automatic answering recording section RC for talking recording, then it is not required for the talking section to be integrated with the equipment main body and an optional talking section is connected.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an image communication device, in particular, an image communication device that has an image communication means and an automatic voice communication means, and performs image communication or automatic voice communication using a common line. The present invention also relates to an image communication device that performs manual voice communication using manual voice communication means independent of automatic voice communication means.

[Prior Art] Conventionally, facsimile devices have been known that are connected to a telephone line, have a line control section, an image reading section, an image recording section, and an image signal modulation/demodulation section (modem), and transmit and receive image information.

On the other hand, the OGM sending unit is also connected to the telephone line and automatically receives a call when the caller is absent and sends out a response message (OGM + out going message) to prompt the caller to record the message. There is also an answering machine consisting of an ICM recording and playback unit that records an incoming message (ICM) issued by the caller in accordance with this OGM and later plays it back for listening. It is widely popular.

Such telephone answering machines are generally capable of recording and reproducing ordinary telephone calls made by the operator at home by using the ICM recording and reproducing means through the communication circuit.

On the other hand, in recent years, facsimile machines with an answering machine that integrate these facsimile functions, an answering machine function, a telephone communication mechanism, and a line control unit that controls the connection of these two and the line have come to be seen.

FIG. 3 shows a block diagram of such a device, which includes a line control section NG and a communication section (primary circuit) CC.
The answering machine section RC and the facsimile section (secondary circuit) FC are separated by a transformer, and in the case of call recording in which calls are recorded by the calling section CC, the call voice in the calling section CC is separated by the transformer to the answering section RC. , and the call is recorded by the recording means of the answering machine RC.

[Problem to be solved by the invention] However, in the above-mentioned example, since the call is recorded using the voice of the call in the call section, a transformer is required just for call recording, and the call section is integrated. Call recording is not possible if the device is not compliant.

[Means for Solving the Problems] According to the present invention, it has an image communication means and an automatic voice communication means, performs image communication or automatic voice communication using a common line, and is independent of the automatic voice communication means. In an image communication device that performs manual voice communication using a manual voice communication means, an input/output analog signal of the manual voice communication means is extracted and inputted to the automatic voice communication means for recording, and a loop state of the line is detected. A configuration was adopted in which a control means for controlling was provided in the line input/output section.

[Function] According to the above configuration, the human output analog signal of the manual voice communication means is extracted and inputted to the automatic voice communication means for recording, and the control means for detecting the loop state of the line is installed in the line input/output section. Because of this, voice input to the automatic voice communication means can be performed at the same time as detecting the state of the line, and it is possible to record call voice signals regardless of the configuration of the manual voice communication means.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

FIG. 1 shows the structure of an image communication device adopting the present invention.

The illustrated device is a facsimile device that integrates an answering machine consisting of a line control section NC5, a talking section CC1, an answering machine recording section RC, and a facsimile section FC.

First, the line control unit NC will be explained. In Fig. 1, reference numeral 1 indicates a DC loop current detecting device that captures the central office line and detects a DC loop current when a DC loop is formed, or detects polarity reversal when the polarity of the DC loop current reverses depending on the call status. This is a loop and polarity reversal detection section. Reference numeral 2 indicates an incoming office detection unit that detects a call from the office line, 4 indicates a call mode,
A relay 6 is used to switch between a facsimile transmission/reception mode or an answering machine mode, and a dial section 6 is used to make a dial call when transmitting a facsimile.

The communication section CC consists of the following circuit. The symbol 1O is a dial part for the operator to make a dial call when making a call;
Reference numeral 12 denotes a telephone call circuit that controls the received voice from the office line and the transmitted voice emitted by the operator during a telephone call, and 14 is a handset incorporating a microphone and a receiver for telephone calls.

In this embodiment, the connection section 46 between the line control section NC and the communication section CC is constructed of a connector, etc., and is configured to be detachable.

The line control unit NC is a transformer unit that separates the line side and the secondary circuit, and the transformer 8 has a network unit.

16 are connected. The network section 16 is a circuit for performing 2-wire to 4-wire conversion and maintaining balance between the office line section (2-wire circuit) and the transmission signal and reception signal circuit (4-wire circuit).

Transmission and reception signals from the answering machine section RC1 to the facsimile section FC are input to and output from the network section 16.

Switches 18 and 20 select which signals from the answering machine section RC1 to the facsimile section FC are to be input and output. In addition, the received signal outputted from the network section 16 is transmitted to a voice detection section 21 in order to detect a signal arriving from a central office line or a central line signal for detecting voice in the answering machine mode or facsimile mode. is also entered.

The answering machine RC consists of the following members.

First, reference numeral 22 is an OG that is pre-recorded by the operator and prompts the caller to record ICM when the answering machine mode is activated.
In the present invention, the OGM recording section for reproducing and transmitting M is assumed to use an audio IC that converts analog audio signals into digital data and stores the same in the OGM recording and reproducing section. Reference numeral 24 is an audio memory that stores the audio signal converted into digital data.

Reference numeral 26 is used to record ICMs received from a caller according to OGM when in answering machine mode, and to record the contents of a call when a call is made by the telephone section during call recording, and to play these later. In the present invention, the ICM call recording and playback section employs a tape method using magnetic tape for recording and playing back ICM calls.

The reference numeral 28 is a magnetic tape such as a microcassette for recording ICM, phone calls, etc., the reference numeral 30 is a speaker amplifier section for amplifying the reproduced signal from each of the recording and reproducing sections, and the reference numeral 32 is a speaker for listening to the same signal.

The facsimile section is composed of the following known members.

Reference numeral 34 designates a modem unit for modulating and demodulating the office line analog signal and digital image signal during facsimile transmission and reception, and reference numeral 36 represents a reading unit for facsimile reception.

Reference numeral 40 denotes a control unit that controls each unit described above, and reference numeral 42
Reference numeral 44 represents a ROM storing a control program for the control unit 40, and an operation unit for the operator to perform various operations.

Here, the code 101 is connected to the DC loop of the line,
The coil 101 is a coil that generates changes in the magnetic field due to changes in the DC loop current, and a ball element 102 is placed near the coil 101 to detect changes in the magnetic field of the coil.

The output of the Hall element 102 is amplified by an amplifying amplifier 103 and output as an analog signal. Amplifier 1
The output of 03 is a value corresponding to the current value of the DC loop. Further, the polarity of the output signal corresponds to the polarity of the loop.

Further, reference numerals 104 and 105 are comparators that compare the analog outputs of 3 with a reference voltage and output a digital H level or L level.

The polarity of the output signal corresponds to the polarity of the loop, so
Depending on the direction of the current in the coil 101, either the control output 1 or the control output 2 will change.

According to the configuration shown in FIG. 2, the existence or non-existence of a DC loop current, and the change in its direction are used as control outputs l and 2, and
Analog changes in the DC loop current can be obtained from the analog signal output.

Next, the operation of the above configuration will be explained.

First, relay 4 is usually set on the T side, and the operator uses handset 14 to make a call (call mode) when a call is received or when a dial call is made using the dial unit of IO.

At this time, if the facsimile unit FC is set to manual reception mode and the operator notices that there is an incoming facsimile call after taking the handset 14 off-hook due to the incoming call, (receive the CNG signal from the calling party) (If you hear this), immediately proceed to facsimile reception by operating the operation section 44. That is, the control section 40 sets the relay 4 to the F/A side, and at the same time sets the switch 18.20 to the F side, sends the transmission/reception signal to the facsimile document section, receives the image signal, and records the received image by the recording section 36. (Facsimile reception mode) Next, when the operator sends a facsimile document, the operator first sets the document on the reading section 38 and presses the operation section 44.
The control section 40 is operated according to the dial operation.
Set relay 4 to the F/A side,
Switches 18 and 20 are set to the F side, dialing is performed using the dial unit 6, polarity reversal is detected by the DC loop 1 and the polarity reversal detection unit, and when the call setting is confirmed, the reading unit 38 The image information read in is transmitted as image information via the modem unit 34 (facsimile transmission mode).

Next, in the case of operation in the answering machine mode, the operator first records OGM in the audio memory 24 via the OGM recording/playback section 22 by operating the operation section 44 while at home.

When the operator sets the answering machine mode by operating the operating section 44 when going out, the switches 18 and 20 are set to the A side.

When the office line incoming call detection section 2 detects an incoming call, first, the relay 4 is set to the F/A side and the dial section 6 captures the DC loop.

Next, the OGM recording and reproducing section 22 and voice memory 24 are driven to send the OGM to the calling party (to the central office line side). At this point, the facsimile unit is set to automatic reception, and when the office line signal audio detection unit 21 detects a CNG signal from the calling party, immediately set the switch 18.20 to the F side and 6. On the other hand, C
If no NG signal is detected, and if the facsimile unit is set to manual reception, the absent mode operation continues.

That is, when the OGM has been sent out, the ICMJ conversation recording/playback section 28 is put into a state of recording from the central office line side, and the ICM from the caller (from the central office line side) is recorded on the magnetic tape. When the central office line signal voice detection unit 21 detects that there is no voice due to the end of the caller's call, the ICM call recording and playback unit 26
Stops the CM U sound and ends one ICM recording (answering mode).

Each mode 1 of the above call mode, facsimile reception mode, facsimile transmission mode, and answering machine detects this state. Based on this detection, the control unit 40 controls the operation unit 4
4 is lit to notify the operator that the line has been captured.

In the above devices, when the operator is at home, the handset 1
4 and if you wish to record the call using the operation section 44, the control section 40
The call recording/reproducing section 26 is set to an operating state for recording the analog signal output of the DC loop polarity reversal detection section 1, and the recording is continued on the magnetic tape 28.

That is, during a call using the communication unit CC, the transmitting voice emitted from the operator and the receiving voice arriving from the other party are changed as changes in the DC loop current via the communication unit CC.
The DC loop polarity reversal detection element 102 converts the output into an electric signal again, and this output is sent as an analog signal output to the ICM call recording and playback section 26 shown in FIG. recorded.

When the operator performs a predetermined operation on the operation unit 44 and wishes to play back the ICM recorded during the answering machine mode and the contents of the call recorded in the call recording mode, the operator performs a predetermined operation on the operation unit 44.
0 puts the ICM call recording and reproducing section 26 into a reproducing state and reproduces the contents of the magnetic tape 28.

According to the above embodiment, changes in the DC loop current on the line are separated and transmitted to the answering machine RC to record the call, so there is no need for the talking part to be integrated into the main body of the device. Also, any communication section may be connected.

That is, the device can be provided as a telephone, handset, etc. separate from the facsimile device, or a regular telephone of another manufacturer can be connected as the communication section CC.

In addition, the detection unit 1 has the function of outputting the above-mentioned analog change in the DC loop current to the answering machine RC, and the function of digitally detecting and outputting the presence or absence of current and the current direction by comparing this with a comparator. Because it has a structured structure,
It becomes possible to detect the presence or absence of line capture and the reversal of magnetism at the time of line capture using the same circuit, reducing costs and space compared to when these detection units were configured separately.

In this example, a voice IC is used in the recording and playback section of OGM, and a magnetic tape is used for recording and playback of ICM, and a method of recording calls on the magnetic tape for ICM is shown.
The recording means for call recording may be separate or integrated. Also, as a recording medium, audio IC1
A suitable combination of magnetic tapes and the like may be used.

[Effect of the Invention J As is clear from the above, the present invention has an image communication means and an automatic voice communication means, performs image communication or automatic voice communication using a common line, and also has an automatic voice communication means. In an image communication device that performs manual voice communication using a manual voice communication means independent of the automatic voice communication means, the input/output analog signal of the manual voice communication means is extracted, inputted to the automatic voice communication means for recording, and the loop of the line is Since a configuration is adopted in which a control means for detecting the state is provided in the line input/output section, the input/output analog signal of the manual voice communication means is extracted, inputted to the automatic voice communication means for recording, and the loop state of the line is detected. Since the line input/output section is equipped with a control means for detecting
Voice input to the automatic voice communication means can be performed, and call voice signals can be recorded regardless of the configuration of the manual voice communication means. Therefore, the manual voice communication means does not need to be integrated, and any communication part can be connected, increasing the degree of freedom of the system.The control circuit described above can perform both voice signal extraction and loop detection. Because it can be used for
It has excellent effects such as cost reduction and space reduction.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a facsimile device of the present invention, FIG. 2 is a block diagram showing details of the DC loop/polarity reversal detection section in FIG. 1, and FIG. 3 is a block diagram showing the configuration of a conventional facsimile device. FIG. l---DC loop polarity reversal detection section 2--Local line incoming detection section 4.18.20--Relay 6--Dial section 8--Transformer 10--
-Dial section 12--Telephone circuit 14--Handset 16--Network circuit 21--Station line signal audio detection section 22--OGM recording/playback section 24--Voice memory 26--ICM recording Reproducing section 28...Magnetic tape 30...Amplifier 32...
-Speaker 33--Transformer 34--Modem section 36--Recording section 38--Reading section
40...Control unit 42...ROM 44-
...Operation unit 2nd wA

Claims (1)

[Scope of Claims] 1) It has an image communication means and an automatic voice communication means, performs image communication or automatic voice communication using a common line, and uses a manual voice communication means independent of the automatic voice communication means. In an image communication device that performs manual voice communication, an input/output analog signal of the manual voice communication means is extracted and inputted to the automatic voice communication means for recording, and a control means for detecting a loop state of the line is connected to the line input/output. An image communication device characterized in that it is provided in a department.