JPH0775389B2 - Data communication device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a data communication device for communicating image data, text code data, etc., and more particularly to a data communication device having a call function for making a call.

[Prior Art] For example, a facsimile machine that performs image data communication has a manual reception mode and an automatic reception mode.

[Problems to be Solved by the Invention] In the manual reception mode, when there is a call from the other party, the communication state is always established and data communication cannot be automatically performed. Also, in the case of the automatic reception mode, if the calling side had only the call function, the call could not be made even if the user wanted to make a call.

In other words, in both cases of manual and automatic reception mode, the called side could not determine whether the calling side is the data terminal.
It was extremely inconvenient to use the device for both voice communication and data communication.

[Means for Solving the Problems] The present invention solves the above-mentioned problems, and in a data communication device capable of telephone call and data communication, first detecting means for detecting a call signal, and the first detecting means. Second detecting means for detecting whether or not the calling side is the data communication terminal, and the second detecting means detects that the calling side is not the data communication terminal when the calling signal is detected by the detecting means of In this case, a configuration is adopted which has operator calling means for calling the operator and sending means for sending to the calling side a signal indicating that the operator calling means is calling.

[Operation] According to the above configuration, when the calling signal is detected and the calling side is detected not to be the data terminal, the operator is called and a signal indicating that the operator is being called is sent to the calling side. To do.

[Embodiment] The present invention will be described in detail below based on an embodiment shown in the drawings.

1 to 3 illustrate one embodiment of the present invention.
FIG. 1 shows a block diagram of the control circuit.

In FIG. 1, reference numeral 1 is a system control unit, and this unit is the central control unit.
Mainly U, it consists of a ROM that contains a program that drives the system and a RAM that stores control commands, and controls the entire system.

A recording system 2 for recording received contents, a reading system 3 and the like are connected to the unit 1.

Further, the reference numeral 4 is a tonal signal detection circuit,
It detects the procedure and the called station response signal in the II mode, and is connected between the relay 11 and the system control unit 1.

A modem / dialer 5 is connected between the A terminal of the relay 11 and the system control unit 1.

Reference numeral 6 is a circuit for detecting a calling signal from the line, reference numeral 7 is a circuit for detecting whether or not the handset 12 is in the OFF hook state, and is provided between the line 13 and the system control unit 1, respectively. It is connected.

The system control unit 1 also controls a buzzer 8 for calling an operator, an operation panel 9, a drive system 10 of the apparatus, a ringback tone generating circuit 15, and the like.

Next, the operation of the present embodiment configured as described above will be described with reference to the flow charts shown in FIG. 2 and FIG.

That is, when the power is turned on, the system control unit 1 performs initialization, switches the relay 11 to the terminal A side, and monitors the state.

Then, in step S1, it is checked whether or not to dial, and if dialing, the process proceeds to a dial routine.

If not dialed, it is detected in step S2 whether or not there is a recording sheet, and if there is no recording sheet, the process proceeds to a display routine indicating this.

If there is a recording sheet, the process proceeds to step S3 to check whether there is a ringing tone from the line.

If there is no ringing sound, the above monitoring operation is repeated,
If there is a ringing tone, the process proceeds to the automatic reception routine of step S4.

When proceeding to the automatic reception routine, in step S5 shown in FIG. 3, the CPU sets the timer to a predetermined time, for example, 5 seconds,
The tonal signal detection circuit 4 monitors whether or not a CNG (calling tone) has come until the timer times out (steps S6 and S7).

In addition, data terminals such as facsimile machines for automatic transmission
Since the CNG is output, it is possible to recognize that the calling side is the data terminal by detecting the CNG.

On the other hand, when CNG is detected in step S6, the calling side is a facsimile machine, and therefore the process proceeds to the reception routine in step S8.

On the other hand, if the timer times out in step S7, the calling side is the call terminal, and the buzzer 8 is turned on in step S9 to notify the operator.

At the same time, the ringback tone generator 15 is driven to inform the calling side that the operator is currently ringing via the line 13. Not only the ringback tone but also voice or the like may be used.

Then, in step S10, when the operator lifts the handset, the OFF hook detection circuit 7 detects the OFF hook state, connects the relay 11 to the terminal B side and connects the switching line 13 and the handset 12, and then the buzzer 8 and the ring. The back tone generator 15 is turned off (steps S11 and S12).

It should be noted that if the handset is not picked up due to the absence of the operator or some other reason, although the call is made from the call terminal,
If the calling party hangs up the line, step S1
The polarity inversion of the line is detected in 3 and the buzzer 8 and ringback tone generator 15 are turned off and the monitoring state is resumed (steps S1 to S
Return to 3).

In this way, the bell sound is not generated when the call is made from the data terminal, and the call sound is notified to the operator when the call is made from the call terminal. As described above, the annoyance that the operator has to react to the bell sound is eliminated.

In the above-described embodiment, if the called operator does not come out, the calling operator has no reaction from the other party, and the telephone charge is incurred.

In such a case, if the called operator does not answer the phone in 10 to 15 seconds, for example, use a voice synthesis IC or the like to announce the absence of the operator, or let the tape run like an answering machine, It is advisable to record the calling party's requirements.

[Effect] As is apparent from the above description, according to the present invention, when a call signal is detected, in the case of a call from the calling terminal, the operator calling means automatically calls the operator and calls the operator. It is possible to notify the caller that it is in the middle of the call, and to keep the caller waiting for a while, which is excellent in that it is possible to automatically execute the receiving operation without the intervention of the operator when calling from the data terminal. There is an effect.

[Brief description of drawings]

FIG. 1 illustrates an embodiment of the present invention. FIG. 1 is a block diagram of a control circuit, and FIGS. 2 and 3 are flow charts illustrating a control operation. 1 …… System control unit 4 …… Tonal signal detection circuit 6 …… Ring tone detection circuit 7 …… OFF hook detection circuit 8 …… Buzzer, 11 …… Relay 12 …… Handset, 13 …… Line

Claims (1)

[Claims] 1. A data communication device capable of telephone call and data communication, comprising: first detecting means for detecting a calling signal; and when the calling signal is detected by the first detecting means, the calling side is a data communication terminal. Second detecting means for detecting whether the caller is a data communication terminal or not, and an operator calling means for calling an operator when the second detecting means detects that the calling side is not a data communication terminal; And a sending means for sending a signal indicating that the call is sent to the calling side.