JPH03230662A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To facilitate the removal of a facsimile equipment from an automobile telephone set by only connecting a connector provided to a handset and the facsimile equipment so as to mount the facsimile equipment to the automobile telephone set. CONSTITUTION:A facsimile equipment 3 applies facsimile communication through an automobile telephone set by sending/receiving a facsimile signal via a headphone jack 18 of a handset 1. The connection state of the facsimile equipment 3 and the handset 1 is discriminated depending on the plugging-in of a plug 41 to a handset jack 301 or not and invalidates the operation of the start button when not connected, then talking the same as a conventional equipment is attained by using a headphone 2 with a microphone when no facsimile communication is executed. Thus, the mount/removal of connecting the facsimile equipment 3 to/from the automobile telephone set is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device that is used by being connected to a car telephone device.

[Prior Art] In recent years, facsimile devices have been connected to car telephone devices.
Facsimile communications using car phones are common.

A car telephone device is composed of a wireless device and a handset, but when connecting a facsimile device, conventionally, as seen in Japanese Patent Laid-Open No. 64-49468, there is no connection between the wireless device and the handset. An interface device was installed and a facsimile machine was connected to the interface device.

In this case, the connector of the connection cable connecting the wireless device and the handset is disconnected, and another connection cable is added or replaced to establish a predetermined connection between the interface device and the facsimile device.

By the way, the handset is generally placed near the front seat in the car, and the wireless device is placed in a remote location such as in the trunk.

[Problems to be Solved by the Invention] Therefore, when attaching or detaching a facsimile device to a car telephone device, it is necessary to open and close the trunk and replace or add cable wiring inside the car, which requires time and effort. There was a problem that it took a while.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a facsimile device that can be easily attached to and detached from a car telephone device.

[Means for Solving the Problems] For this purpose, the present invention utilizes a connector for connecting headphones with a microphone provided in a handset, and connects a signal line for transmitting and receiving signals of a car phone device through the connector. is connected to the facsimile machine side, and headphones with a microphone are connected, and facsimile signals are transmitted and received via the signal line to execute facsimile communication, and audio signals of the headphones with a microphone are transmitted and received via the signal line. It is characterized by being able to switch between the call state and the call state.

[Function] The facsimile device can be attached to the car telephone device simply by connecting the facsimile device to the connector provided in the hand sent, so that the task of attaching and detaching the facsimile device is facilitated. Further, when facsimile communication is not being performed, the signal line is switched and connected to the microphone-equipped headphone side, so that it is possible to make a call using the headphones as before.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a device configuration diagram of an in-vehicle communication system according to an embodiment of the present invention. In the figure, a handset 1 is used for making and receiving calls and making calls, and is connected to a car phone radio device (not shown). This handset 1 has a receiver 11 and a transmitter 12 formed on the negative side, and a display 1 that displays the operating status on the back side.
3. A dial key 14, a start key 15 to be operated when starting a call, and an end key 16 to be operated to end a call are provided.

Further, a cable 17 connected to a car phone wireless device is pulled out from the side surface of the end, and a headphone jack 18 is provided on that surface.

Headphones 2 are used for talking without holding handset 1 in hand, and are equipped with a microphone 21 and a speaker z2, and a plug 24 is attached to the tip of a connecting cord 23.

The facsimile machine 3 has a handset jack 301
and a headphone jack 302 are provided. The connection cord 4 has plugs 41 attached to both ends and is used to connect the handset 1 and the facsimile device 3.

FIG. 2 shows a circuit diagram of the facsimile machine 3. As shown in FIG. In the figure, a scanner 303 is for reading original images, and a plotter 304 is for recording images. The encoding/decoding unit 305 encodes image information to be transmitted and decodes received image information.

The modem 306 transmits and receives facsimile signals, and the operation display section 307 displays the operating status of the device.
The operator performs various operations. A system control section 308 controls each section within this device.

A terminal 301a of the handset jack 301 is a ground terminal and is connected to the ground line of this device.

The terminal 301b is a terminal from which an audio signal from the handset 1 side is taken out, and is the common terminal c1 of the relay 309.
It is connected to the. Further, the terminal 301c is a terminal for sending an audio signal to the handset 1 side, and the relay 309
is connected to the common terminal c2 of. Furthermore, the terminal 30
1d is a terminal that is electrically connected to the terminal 301a when the plug 41 is inserted, and is connected to the system control unit 308.

A break contact a of the relay 309 is connected to a terminal 302a of the headphone jack 302, and a break contact a2 is connected to a terminal 302b. When the plug 24 is inserted into the headphone jack 302, the terminal 302a
The terminal 302b is a terminal connected to the speaker 22, and the terminal 302b is a terminal connected to the microphone 21. In addition, the terminal 302
c is a ground terminal, which is connected to the ground line of the device.

A make contact of the relay 309 is connected to one end of one winding of a transformer 310 for impedance matching, and the other end is connected to a ground line.

One end of the other winding of transformer 310 is grounded.

The other end is connected to the input of the amplifier circuit 311. The output signal of the amplifier circuit 311 is input to the modem 306.

The transmission signal of modem 306 is input to attenuator 312,
Its output terminal is a transformer 313 for impedance matching.
is connected to one end of one of the windings, and the other end is connected to the ground line. One end of the other winding is relay 309
The other end is connected to the make contact b2, and the other end is connected to the ground line.

One end of the winding of the relay 309 is connected to the power supply +V, and the other end is connected to the system control unit 308.

With the above configuration, in the in-vehicle communication system of this embodiment, the facsimile device 3 is connected arbitrarily when necessary.

If the facsimile device 3 is not needed, the facsimile device 3 is not connected and the car telephone device is used as usual. That is, when making a call, the operator first presses the start key 15, and then presses the dial key 1 when making a call.
4, and when the other party answers, pick up the handset 1 and start talking. When receiving a call, the user presses the start key 15, immediately picks up the handset 1, and starts talking.

Furthermore, when using the headphones 2, the plug 24 of the headphones 2 is inserted into the headphone jack 18 of the handset 1 in advance, and the headphones 2 are worn on the head. This allows the user to talk on the phone without picking up the handset 1.

Next, when using the facsimile device 3, insert the plugs 41 at both ends of the connection cord 4 into the headphone jack 18 of the handset 1 and the handset jack 301 of the facsimile device 3 to connect both, while Connect the headphones 2 by inserting the plug 24 into the .

When the facsimile machine 3 is not operating, the movable contact of the relay 309 is connected to the break contact a and taZ side. Therefore, the audio signal from the handset 1 is output to the speaker 22, and the audio signal from the microphone 21 is input to the handset 1. As a result, headphones 2
A mobile phone device can be used in the same way as in the previous case where the mobile phone is connected directly to the handset I.

Next, when performing facsimile communication, the operator should:
While talking with the other party, a start button (not shown) provided on the operation display section 307 is pressed.

As shown in FIG. 3, the facsimile machine 3 constantly monitors the operation of the start button (N loop of process 1001). Then, when the start button is pressed (Y in process 1001), it is determined whether the handset 1 is connected. That is, when the handset 1 is connected to the facsimile machine 3, the plug 41 is inserted into the handset jack 301, so the line of the terminal 301d is at ground potential. The facsimile machine determines whether the handset 1 is connected based on the line status of the terminal 301d (process 1002).
.

Then, if handset 1 is connected (processing 1
002 Y), the movable contact of the relay 309 is switched to the b side (processing 1003). In addition, here, handset 1
If it is not connected (proceed to process 1002), it is disabled (proceed to process 1001).

As a result, the transmission signal from the modem 306 is transmitted to the attenuator 3.
12. Trans 313. Relay 3o9. The signal is output to the handset 1 side via the handset jack 301 and the connection cord 4, and the received signal from the handset 1 side is input to the modem 306 through the reverse route.

The facsimile machine executes predetermined facsimile communication in this state (process 1004).

Then, when the facsimile communication is finished, the relay 309
The movable contact is switched to the a side (process 1005), and the operation ends.

As described above, in this embodiment, the facsimile machine 3
By transmitting and receiving facsimile signals through the headphone jack I8 of the handset 1, facsimile communication is performed using the car telephone device. This results in
The work of connecting and disconnecting the facsimile device 3 to and from the car telephone device becomes very easy.

Further, the connection state between the handset 1 and the facsimile device 3 is determined based on whether the plug 41 is inserted into the handset jack 301, and if the connection is not made, the operation of the start button is disabled. Thereby, when the connection is made, the facsimile machine will not operate even if the operator mistakenly performs a start-up operation, so that unnecessary operations can be prevented.

Note that in the above embodiment, the facsimile machine 3 has
Furthermore, an interface unit for connecting to another line such as a normal telephone line may be provided. In that case, it becomes more necessary to attach and detach the facsimile device 3 from the car telephone device, so by applying the present invention, the facsimile device can be used more conveniently.

Further, although an example has been shown in which the handset 1 and the headphones 2 are connected using a jack and a plug, it goes without saying that other connectors such as terminals and connectors may be used.

[Effects of the Invention] As described above, according to the present invention, the signal line for transmitting and receiving signals of the car telephone device is connected to the facsimile device side via the connector for connecting headphones with a microphone provided in the hand center. It is possible to switch between a state in which headphones with a microphone are connected and facsimile communications are executed by transmitting and receiving facsimile signals through the signal line, and a call state in which audio signals from the headphones with a microphone are transmitted and received through the signal line. Therefore, it becomes easy to attach and detach the facsimile device to the car telephone device, and when facsimile communication is not being performed, it becomes possible to make calls as before using headphones with a microphone.

[Brief explanation of drawings]

FIG. 1 is a device configuration diagram of an in-vehicle communication system according to an embodiment of the present invention, FIG. 2 is a circuit configuration diagram of a facsimile device, and FIG. 3 is an operation flowchart of the facsimile device. ■...Handset, 2...Headphones, 3...
facsimile device, 4... connection cord, 11... receiver, 12... transmitter, 13... display, 14...
Dial key, 15...Start key, 16...End key, 18,302...Headphone jack, 21...
・Microphone, 22... Speaker, 24, 41... Plug, 301... Handset jack, 303...
- Scanner, 304... Plotter, 305... Encoding/decoding unit, 306... Modem, 307... Operation display unit, 308... System control unit, 309... Relay, 310, 313 ...Transformer, 311...Amplification circuit, 312...Attenuator.

Claims (2)

[Claims] (1) In a facsimile device that connects to a car telephone device whose handset is equipped with a connector for connecting headphones with a microphone, a signal that connects the signal line for transmitting and receiving signals of the car phone device to the facsimile device via the connector. a connecting means, a facsimile communication means for transmitting and receiving facsimile signals via the signal line to execute facsimile communication, a connecting means for connecting headphones with a microphone, and an audio signal of the headphones with a microphone via the signal line. 1. A facsimile apparatus comprising: a communication means for transmitting and receiving data to establish a telephone conversation state; and a communication switching means for switching between the facsimile communication state and the telephone conversation state. (2) The above signal connection means connects the signal line using a removable connection cord, and also includes a means for determining the connection status of the signal line, and starts communication with the facsimile machine only when the signal line is connected. 2. The facsimile apparatus according to claim 1, further comprising means for enabling operation.