JPH0669874A - Interface device for portable telephone - Google Patents

Abstract

PURPOSE:To enable speaking and facsimile communication in the state of connecting an interface to a portable telephone. CONSTITUTION:This interface device is provided with a speaker 6 for speaking and microphone 7 for speaking and further, a switching part 10 is provided to switch the device to a speaking enable state and a data communication enable state. Since speaking is enabled by the switching part 10 in the state of connecting the interface device to the portable telephone, speaking can be performed by using the speaker 6 and the microphone 7. On the other hand, since the device is turned to the data communication enable state by the switching part 10, the facsimile communication can be performed from a connected facsimile equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone interface device for connecting a facsimile device to a portable telephone device for data communication.

[0002]

2. Description of the Related Art As disclosed in JP-A-64-49468, JP-A-64-73968, JP-A-2-100559, etc., a facsimile apparatus is used in a portable telephone device (hereinafter referred to as a portable telephone). When connecting (hereinafter, referred to as a facsimile), it is necessary to attach an interface device (hereinafter, referred to as an interface) to the mobile phone.

Generally, a mobile phone is provided with an earphone / microphone set connecting terminal, and the interface is used by connecting this terminal to the connecting terminal of the interface.

[0004]

However, in the above conventional device, when the earphone / microphone set is connected to the earphone / microphone set connection terminal, that is, when the plug is inserted into the jack, the transmission path is the mobile phone. It is separated from the speaker and microphone and connected to the terminal side. Therefore, if you connect an interface using this terminal, you will not be able to talk while the interface is connected.

Therefore, when actually trying to send a fax, when making a call, the interface is removed from the terminal, the CED from the other party is confirmed, and the facsimile is started by connecting. Similarly for reception, if there is an incoming call, you do not know whether it is a telephone or a facsimile, so you need to disconnect the interface, connect when starting reception, start facsimile, and then talk In that case, the interface had to be removed again, and the operability was poor.

[0006] Also, there are some that connect an earphone / microphone set to the interface to enable a telephone call, but the earphone / microphone set is required to make a telephone call, and the number of components is large, so that it is not portable. There is a problem that it is inconvenient.

[0007] The present invention solves the above problems and provides a mobile phone interface suitable for being carried, which enables communication and communication while the interface is connected to the mobile phone, improves operability. With the goal.

[0008]

In order to achieve the above object, the present invention provides a mobile phone interface device which is arranged between a facsimile and a mobile phone to enable data communication by the mobile phone. A terminal connectable to a headset connection terminal, a terminal connectable to a facsimile line connection terminal, a call speaker, a call microphone, and a switching unit that switches between a call enabled state and a data communication enabled state, It is characterized in that it is provided with a two-wire to four-wire conversion circuit for connecting a transmission line between a mobile phone and a facsimile.

Further, the present invention is characterized in that direct current is detected by a direct current loop formed at the time of starting the facsimile, and the switching section is switched to enable data communication.

Further, it is characterized in that it can be closely fixed to a mobile phone.

[0011]

According to the above means, since the interface is provided with the speaker and the microphone for the call and the call and the data communication are switched by the switching unit, the call or the facsimile communication can be performed with the interface connected to the mobile phone. It will be possible.

Further, by detecting the start operation of the facsimile and operating the switching section, the state in which data communication is possible is automatically switched.

Further, by fixing the interface closely to the mobile phone, stable and easy communication can be performed even when the interface is connected.

[0014]

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

FIG. 1 is an explanatory view of the configuration of the first embodiment of the present invention, and FIG. 2 is an external perspective view showing a mounting state of the first embodiment. In FIG. 2, 1 is a mobile phone and 2 is a mobile phone. 1
This is an earphone / microphone set connection terminal (headset connection terminal) provided in the.

3 is an interface, 4 is a cable, 5
Is a socket connected to the headset connection terminal 2 via a cable 4, and the interface device 3
Is provided with a call speaker 6, a call microphone that can be arranged at an arbitrary position by a flexible cord, and a modular jack 8 for facsimile connection. The interface device 3 is fixed in close contact with the mobile phone 1 by a band 9.

In FIG. 1, 10 is a switching unit for switching the circuit connection between a call-enabled state and a data communication-enabled state, 11 is a switching transistor, and 12 is connected to the collector of the switching transistor 11 to cause the switching unit 10 to perform a switching operation. For the electromagnet, 13 is connected to the switching unit 10 2
A line-to-four-line conversion circuit, 14 is a DC supply circuit, and 15 is a DC detection circuit connected to the base of the switching transistor 11. Incidentally, C in the figure is a capacitor.

Next, the operation of the above embodiment will be described with reference to the flowchart of FIG.

As shown in FIG. 2, the interface device 3 and the mobile phone 1 are connected by fitting the cable 4 into the headset connection terminal 2 (S1), and a facsimile device (not shown) is connected to the interface device 3 as well. Connect to the modular jack 8 (S2).

In the case of a call, the call is connected by dialing from the mobile telephone 1 to call the other party, and in the case of an incoming call, the call is connected by the call from the other party (S3).

In the case of transmission (YES in S4), the original is inserted into the facsimile (S5), and after confirming the CED from the other party (S5).
6) Press the start button of the facsimile (S
7). When the facsimile is started, the facsimile side forms a DC loop, so that DC is supplied from the DC supply circuit 14 and detected by the DC detection circuit 15.

The switching transistor 11 is turned on by the detection, and the switching unit 10 is turned on by the attracting action of the electromagnet 12.
Switch the switching terminal from a to b, and connect the mobile phone 1 to the 2 wire 4
It is electrically connected to the facsimile through the line conversion circuit 13. Data communication is performed in this state (S8).

When the communication is completed (S9), the DC loop is opened in the facsimile, so that the DC detection circuit 15 cannot detect the DC current, the switching transistor 11 is turned off, and the attraction of the electromagnet 12 is released. The switching terminals of 10 are switched from b to a, and the mobile phone 1 is electrically connected to the call speaker 6 and the call microphone 7.

If a call is required after the call ends (Y in S10)
ES), a call can be made through the speaker 6 and the microphone 7 of the interface device 3, and if the call is not necessary (NO in S10), the mobile phone 1 is terminated (on-hook) (S1).
1).

If the call is not transmitted (NO in S4), if the call is made (YES in S12), the call is made by the speaker 6 and the microphone 7 as described above, and then the call is received (S13).
In YES), the above step (S7) is entered to perform data communication. If not received (NO in S13), the process goes to the step (S11) to end the mobile telephone 1.

FIG. 4 is an external perspective view showing the mounting state of the second embodiment of the present invention. The members corresponding to those described with reference to FIGS. 1 and 2 are designated by the same reference numerals for detailed description. Omit it. In the second embodiment, the headset connection terminal 2 provided on the lower portion of the side wall of the mobile phone 1 and the socket 5 of the interface device 3 are connected via the cable 4, and the side face of the interface device 3 is connected. A switching unit operating body 20 is provided so that the switching unit 10 for switching the circuit connection between a call-enabled state and a data communication-enabled state can be operated from the outside.

[0027]

As described above, according to the present invention,
The interface device has a microphone and a speaker, and can switch between a call-enabled state and a data-communication enabled state, so that you can talk or fax communication while the interface is connected to the mobile phone. Since the interface can be automatically switched to the communication enabled state and the interface can be fixed closely to the mobile phone, the operability is improved, such as making the call stable and easy, and the mobile phone interface suitable for carrying is provided. it can.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a configuration of a mobile phone interface according to a first embodiment of the present invention.

FIG. 2 is an external perspective view showing a mounting state of the first embodiment.

FIG. 3 is a flowchart of a call and a communication according to the first embodiment.

FIG. 4 is an external perspective view showing a mounted state of the second embodiment of the present invention.

[Explanation of symbols]

1 ... Mobile phone, 2 ... Headset connection terminal (earphone / microphone set connection terminal), 3 ... Interface device, 5 ... Socket (terminal), 6 ... Call speaker, 7 ... Call microphone, 8 ... Modular Jack
(Terminal), 9 ... Band, 10 ... Switching unit, 11 ... Switching transistor, 12 ... Electromagnet, 13 ... 2-wire / 4-wire conversion circuit, 14 ... DC supply circuit, 15 ... DC detection circuit.

Claims (3)

[Claims] 1. A terminal for connecting to a headset connection terminal of a mobile phone device in a mobile phone interface device, which is arranged between a facsimile device and a mobile phone device and enables data communication by the mobile phone device, A terminal connectable to the line connection terminal of the facsimile device, a speaker for communication, a microphone for communication, a switching unit for switching between a communication enabled state and a data communication enabled state, and a transmission path between the mobile phone device and the facsimile device. An interface device for a mobile phone, comprising a 2-wire to 4-wire conversion circuit for connection. 2. The interface device for a mobile phone according to claim 1, wherein direct current is detected by a direct current loop formed when the facsimile apparatus is started, and the switching unit is switched to enable data communication. 3. The mobile phone interface device according to claim 1, wherein the mobile phone device can be closely fixed to the mobile phone device.