JPH03173231A - Automobile telephone controller - Google Patents

Abstract

PURPOSE:To prevent a sense of displeasure given to an operator and the acquisition of an undersired line by restoring forcibly the line when a fault takes place in a power supply of a facsimile equipment during facsimile reception. CONSTITUTION:When a power failure such as interruption of power supply of a facsimile equipment 40 or a power output decrease to a level at which the equipment 40 is not normally operated takes place, the abnormality in a power unit is detected by a power supply output detector 34 via a FAX interface 33 and the result is informed to control section 32. The control section 32 uses a signal generator 35 to generate a hook-on signal, a signal transmission means 32a sends a hook-on signal to the radio equipment 10 via an automobile telephone interface 31 to interrupt the line forcibly. Thus, the flowing of the facsimile signal from an opposite party to a handset 20 or the like is avoided and the sense of displeasure is not given to the operator and the acquisition of the undersired line is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applied to a car telephone control device for performing communication such as facsimile using a car phone radio device.

〔overview〕

The present invention is directed to a car phone control device that switches the line of a car phone radio device from a handset to a facsimile device to perform facsimile communication, and is designed to prevent the facsimile IJ device from turning off the power or making the device inoperable. Detects a power supply abnormality in which the power output drops to
By sending a hook-on signal to the car telephone radio device to forcibly disconnect the line, and also transmitting a dial tone if the handset is hook-off at that time, it is possible to prevent facsimile signals from the other party in the event of a power failure of the facsimile machine. This prevents operators from feeling uncomfortable and from unnecessary line capture.

[Conventional technology]

FIG. 4 is a block diagram showing an example of a conventional car telephone control device.

The car phone control device 30 is connected to a car phone radio device (hereinafter referred to as a radio device) 10 and a handset 20 via a car phone interface 31, and is connected to a FAX iffintaface 33 and a facsimile device 40, Furthermore, a control section 32 is provided.

After detecting the hook-off signal from the wireless device 10, the control unit 32 switches the line from the handset 20 to the facsimile device 40 by pressing the communication button of the facsimile device 40, thereby executing facsimile communication.

Furthermore, when the facsimile communication is finished, the control unit 32
detects a communication end signal from the facsimile device 40 and, when in the hook-on state, immediately notifies the wireless device 10 of the end of facsimile IJ communication.
0 restores the line. In addition, when in the hook-off state, the line is connected to the facsimile device 4 without notifying the wireless device 10.
0 to the handset 20 side, the line is not restored.

[Problem that the invention seeks to solve]

In the above-mentioned conventional car phone control device 30, when controlling the line at the end of facsimile communication to the car phone, the handset 20 is hooked off, that is, the handset 20 is kept in the up position to receive a facsimile or to send a facsimile using a hands-free car phone. If the facsimile device 40 is powered off during facsimile reception or the power output drops to a level where facsimile communication cannot operate stably, the line connected to the facsimile device 40 is switched to the handset 20 side. Just by switching, the line is not disconnected, and the facsimile signal from the other party flows to the handset or handfree beaker and continues until the other party's facsimile device 40 finishes transmitting, causing discomfort to the operator or unnecessary line capture. There were drawbacks.

It is an object of the present invention to eliminate the above-mentioned drawbacks, and to forcibly restore the line when the power of the facsimile machine is cut off or the output decreases while receiving a facsimile, thereby causing discomfort to the operator due to the facsimile signal from the other party. It is an object of the present invention to provide a car telephone control device which does not give any problems or perform unnecessary line seizing.

[Means for solving problems]

The present invention switches and connects a car telephone radio device, a handset, and a facsimile device, detects a hook-off signal of the handset, makes the facsimile device ready for facsimile communication, and when the facsimile communication ends, the facsimile device In a car telephone control device equipped with a line control means for detecting a facsimile communication end signal from and performing line restoration processing, a power source whose power output has decreased to such a level that the facsimile device is powered off or the device becomes inoperable. The line control means includes power output detection means for detecting an abnormality and signal generation means for generating a hook-on signal, and the line control means generates the signal when the power output detection means detects the power supply abnormality during facsimile reception. The present invention is characterized in that it includes signal sending means for generating a hook-on signal and sending the hook-on signal to the car telephone radio device to forcibly disconnect the line.

Further, in the present invention, when the hook-on signal sending means sends a hook-on signal for causing the car radio device to disconnect the line, the line control means transmits a call from the car telephone radio device when the handset is in a hook-off state. An instruction means for sending out a sound can be added.

Further, in the present invention, the line control means further includes a timer means for causing the hook-on signal sending means to transmit the hook-on signal after a predetermined period of time has elapsed from the time when the power supply abnormality was detected by the power output detection means. can do.

[Effect]

If a power failure occurs in the facsimile device during facsimile reception, the power output detection means detects this, the signal generation means generates a hook-on signal, and the signal transmission means sends the hook-on signal to the wireless device, forcing it to to disconnect the line. If the handset is in the hook-off state at this time, the instruction means instructs the wireless device to generate a dial tone. Further, the hook-on signal can be transmitted by a timer means after a predetermined period of time has elapsed since the abnormal state of the power supply was detected.

Therefore, if an abnormality occurs in the power supply of the facsimile machine, the circuit will be forcibly cut off immediately or after a certain period of time after the system has stabilized, so the operator will not feel uncomfortable during facsimile communication and the line will be disconnected. will not be captured unnecessarily. Furthermore, even if the handset is picked up, the condition can be notified to the operator by a dial tone.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention.

In the present embodiment, a wireless device 10, a handset 20, and a facsimile device 40 are switched and connected, a hook-off signal of the handset 20 is detected, the facsimile device 40 is enabled for facsimile communication, and when the facsimile communication is completed, , a control unit 32 as a line control means that detects a facsimile communication end signal from the facsimile device 40 and performs line restoration processing, and a car phone interface 31.
In the car telephone control device 30 equipped with the IFFINTAFACE 33 for FAX, the feature of the present invention is that the power supply abnormality in which the power output of the facsimile device is cut off or the power output is reduced to a level where the device becomes inoperable can be detected. A power output detector 34 as a power output detection means for detection, and a signal generator 3 as a signal generation means for generating a hook-on signal.
5, when the control unit 32 detects the power supply abnormality by the power supply output detector 34 during facsimile reception,
It includes a signal sending means 32a that generates a hook-on signal by a signal generator 35 and sends it to the wireless device 10 to forcibly disconnect the line.

Next, the operation of the present embodiment will be explained.

The wireless device 10 and the handset 20 transmit and receive signals to and from a control unit 32 via a car phone interface 31. On the other hand, the facsimile device 40 is a FAX
It is connected to the interface 33 and sends and receives signals to and from the control unit 32 via the FAX interface 33 .

Further, the power output detector 34 is connected to the IFFINTAFACE 33 for FAX, and notifies the control unit 32 of power output information of the facsimile machine 40 .

Now, there is an incoming call to the wireless device 10, and when the handset 20 is picked up and hooked off, the line is connected to the other party.

Next, when the communication button of the facsimile device 40 is pressed, the control unit 32 disconnects the wireless device 10 and the handset 20, switches the connection between the wireless device 10 and the FAX IFFINTAF ACE 33, and ace 33
and start receiving faxes.

At this time, if the power to the facsimile machine 40 is cut off or a power supply abnormality occurs in which the power output drops to a level that prevents the facsimile machine 40 from operating normally, the IFFINTAFACE for FAX 33 detects whether the power is cut off or by the power output detector 34. A decrease in power output is detected and notified to the control unit 32. Thereby, the control unit 32 causes the signal generator 35 to generate a hook-on signal, causes the signal sending means 32a to send the generated hook-on signal to the wireless device 10 via the car phone interface 31, and then the wireless device 10 forcibly disconnects the line. Therefore, the facsimile signal from the other party will not be transmitted to the handset 20 or a hand free beaker (not shown).

FIG. 2 is a block diagram showing a second embodiment of the present invention.

The second embodiment has the configuration of the first embodiment shown in FIG.
Further, as a feature of the present invention, when the signal sending means 32a sends out a hook-on signal for causing the wireless device 10 to disconnect the line, the control unit 32 can cause the wireless device 10 to emit a tone when the handset 20 is in the hook-off state. It includes an instructing means 32b as an instructing means for sending out a tone.

In the first embodiment shown in FIG. 1, when the wireless device 10 forcibly disconnects the line, the handset 20 remains disconnected.
That is, if the hook-off state remains, no sound will be emitted from the handset 20 and the operator will not notice the hook-off state. The second embodiment eliminates this problem and makes the operator aware of the hook-off of the handset 20.

According to the second embodiment, when the control unit 32 detects a power abnormality and sends a hook-on signal to the radio device 10 to disconnect the line, if the handset is in the hook-off state, the control unit 32 In response, the instruction means 32b sends out a hook-off signal for generating a dial tone. This causes the wireless device 10 to send a dial tone to the handset 20, informing the operator that the handset 20 is on the line, and placing the handset 20 in a hook-on state.

FIG. 3 is a block diagram showing a third embodiment of the present invention.

The third embodiment differs from the second embodiment in FIG. 2 in that the control section 32 controls the signal sending means 32a to send out the hook-on signal and the power output detector 34 to detect a power abnormality. A timer 36 is included as a timer means for causing the operation to be performed after a predetermined period of time has elapsed from the detected time.

In this third embodiment, if the system is not stabilized after the power is turned off,
This is a measure against the possibility that the wireless device 10 may not be able to receive the hook-on signal from the control unit 32.

That is, according to the third embodiment, the control unit 32 sets the timer 36 for a certain period of time sufficient for the system to stabilize after the power output detector 34 detects a power abnormality, and the signal generator Since the timing of generation of the hook-on signal by .35 is delayed, recovery processing can be performed reliably.

〔Effect of the invention〕

As explained above, the present invention enables the facsimile signal from the other party to be transmitted to the handset or handfree beaker by forcibly restoring the line when the power of the facsimile device is cut off or the power output decreases during facsimile reception. This has the effect of not causing discomfort to the operator or unnecessary line capture. In addition, even if the handset is off, generating a dial tone has the effect of letting you know that the handset is off.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a first embodiment of the present invention. FIG. 2 is a block diagram showing a second embodiment of the present invention. FIG. 3 is a block diagram showing a third embodiment of the present invention. FIG. 4 is a block diagram showing a conventional example. 10... Wireless device, 20... Handset, 30...
Car telephone control device, 31...Car phone interface, 32...Control unit, 32a...Signal sending means, 32b...Instruction means, 33...IFFINTAFACE 4 for FAX... Power output detector, 35... signal generator, 36... timer, 40... facsimile device.

Claims (1)

[Scope of Claims] 1. When a car telephone radio device, a handset, and a facsimile device are switched and connected, a hook-off signal of the handset is detected, the facsimile device is enabled for facsimile communication, and the facsimile communication is terminated. , a car telephone control device comprising line control means for detecting a facsimile communication end signal from the facsimile machine and performing line recovery processing, wherein the power output is increased to a level at which the facsimile machine is powered off or becomes inoperable. and a signal generating means that generates a hook-on signal. A car telephone control device characterized in that it includes signal sending means for generating a hook-on signal by the signal generating means and transmitting the hook-on signal to the car telephone radio device to forcibly disconnect the line. 2. The line control means causes the car telephone radio device to send out a dial tone when the handset is in a hook-off state when the hook-on signal sending unit sends a hook-on signal to the car radio device to disconnect the line. 2. A car telephone control device according to claim 1, further comprising indicating means. 3. The line control means includes timer means for causing the hook-on signal sending means to send out the hook-on signal after a predetermined period of time has elapsed from the time when the power supply abnormality was detected by the power output detection means. The automatic telephone control device according to item 2.