JP3290044B2 - Wireless communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication device, and more particularly, to a radio communication device having enhanced usability.

[0002]

2. Description of the Related Art When using an external speaker connected to a wireless communication device, a device having a function of controlling the operation of the wireless communication device itself by operating a remote control switch for remote control provided on the external speaker has been put into practical use. Have been.

FIG. 4 shows a configuration of a main part of a conventional apparatus of this type on an external speaker side, and FIG. 5 shows a configuration of a main part of a wireless communication device main body. Referring to FIG. 4, the terminal of the speaker plug 10 on the external speaker 14 side is composed of three terminals 11, 12 and 13 which are electrically insulated. The terminal 11 and the terminal 13 as a ground terminal are connected to each other. A plurality (three in this example) of remote control switches 15 connected to the external speaker 14 and provided between the terminal sections 12 and 13 in accordance with the number of types to be remotely controlled.
A, 15B and 15C are resistors R11 and R12, respectively.
And R13 are connected in parallel.

On the other hand, as shown in FIG. 5, a jack 1 into which a plug 10 is inserted is provided on the wireless communication device side, and terminal portions 11 and 12 of the plug 10 inserted into the jack 1 are provided.
Are provided with terminal portions 3 and 2, respectively. The ground terminal 13 of the plug 10 contacts the ground of the jack 1 when inserted. An AF signal demodulated on the wireless communication device main body side is supplied to the terminal unit 3, and supplied to the external speaker 14 via the terminal unit 11 of the plug 10.

The terminal 12 of the plug 10 is connected to the microcomputer 6 via the terminal 2 of the jack 1, and this connection point is connected to the power supply (VDD) 5 via the resistor R1. The microcomputer 6 detects the voltage level of the signal transmitted from the terminal unit 2 and thereby controls the remote control switch 15A.
-15C, which remote control switch has been operated and executes the corresponding operation.

For example, when the remote control switch 15A of FIG. 4 is operated, only the resistor R11 is inserted between the terminal 2 and the ground, and the microcomputer 6 detects the divided voltage by the resistors R1 and R11 of the power supply VDD. An operation corresponding to the operation of the remote controller 15A is executed. Similarly, the remote control switch 15
When B or 15C is operated, the resistor R12 or R1
3 are inserted between the terminal section 2 and the ground, respectively, the divided voltage by the resistors R1 and R12 or R13 of the power supply VDD is detected by the microcomputer 6, and the corresponding remote control operation is executed.

The above operation is the same when an external microphone is connected and used instead of an external speaker.

[0008]

As described above, in a conventional wireless communication device for connecting an external speaker / microphone, dedicated terminals for remote control are provided as plug and jack terminals.

As described above, the remote control terminal is exclusively used for remote control, no consideration is given to its use for other purposes, and it cannot be said that the terminal is effectively used.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wireless communication device having an extended usability by enabling the original remote control terminal to be used for other purposes when the wireless communication device body is not operating. It is in.

[0011]

In order to solve the above-mentioned problems, a wireless communication device according to the present invention is provided in a wireless communication device.
And a jack with a first remote terminal and an external device
And a plug having a second remote terminal.
A second remote terminal is inserted into the first remote terminal.
The wireless communication device transmits operation information of a remote switch provided in the external device to the wireless communication device via the second and first remote terminals at the time of insertion, and performs a predetermined remote control operation. A mode selection switch for selecting a remote mode for performing control and a squelch mode for performing squelch operation;
When the squelch mode is selected, the wireless communication
When the transceiver receives the carrier signal, it is configured to apply a predetermined voltage to the first remote terminal.

Here, when a predetermined operation such as controlling the lighting of a light emitting element provided in an external device is performed by a voltage applied to the remote terminal, or when the squelch circuit of the wireless communication device is opened, the light emission is performed. The element can be turned on to indicate whether a carrier signal has been received.

[0013]

According to the present invention, a remote mode for performing remote control is provided.
Mode to select the squelch mode for performing the squelch operation.
When a plug of an external device inserted into the first remote terminal of the jack of the wireless communication device is inserted, remote operation information by a remote switch provided on the external device is transmitted to the second remote terminal. A predetermined voltage is applied to the first remote terminal when the wireless communication device receives a carrier signal and sends the signal to the first communication terminal. Operation is performed.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a main part of a wireless communication device main body showing an embodiment of a wireless communication device according to the present invention. FIG.
In FIG. 5, components denoted by the same reference numerals as those in FIG. 5 indicate components having similar functions.

In the present embodiment, a protection diode D1 for preventing backflow is provided between the microcomputer 6 and the terminal unit 2, and a switching circuit (transistor switch in this embodiment) 9 is connected between the terminal unit 2 and the ground. The operation of the switching circuit 9 is controlled by a control signal output from a control port 8 of the microcomputer 6. Microcomputer 6
In addition, the remote control mode (RE
A mode changeover switch 4 for switching between an M mode) and a squelch mode (SQ mode) in which the wireless communication device is substantially inactive is provided. Mode switch 4
When the a is selected, the remote control mode is designated, and when the b side is selected, the squelch mode is designated.

FIG. 2 shows an operation flowchart of this embodiment. When the operation of the present embodiment starts, first,
It is determined whether the mode switch 4 has selected the remote mode or the squelch mode (step S
1). Here, if it is determined that the remote mode is selected, a normal remote mode operation is executed (step S2), and remote control from an external speaker (or microphone) becomes possible. If it is determined that the squelch mode is selected, the squelch mode is entered (step S3), and then the open / close state of the squelch is determined (step S4).

When the wireless communication device receives the carrier signal and squelch opens, or when the squelch opens due to noise level adjustment, microcomputer 6 is busy (B
(U.S.A.), and sends a predetermined control signal from the control port 8 to the switching circuit 9 to control the voltage applied to the terminal unit 2. In step S4, for example, when it is determined that the squelch is closed, a control signal for turning on the switching circuit 9 is transmitted from the control port 8, the terminal unit 2 is grounded, and the terminal unit 2 as a remote terminal is connected, for example. , "Low" level (GND voltage). On the other hand, if it is determined that the squelch is open, the control port 8
A control signal for turning off the switching circuit 9 is sent from the terminal 2, and for example, a “High” level (VDD voltage) of the power supply VDD is supplied to the terminal unit 2.

Therefore, in this embodiment, the voltage level applied to the terminal portion 2 changes between the open state and the closed state of the squelch, and any operation can be performed by this voltage level.

FIG. 3 is a block diagram showing an essential part of an example for performing this arbitrary operation. Figure 3 shows Jack 1
Via a plug 10 inserted into illustrates an application example to FIG. 4 a similar external speaker 14 connected to the wireless communication device, the light emitting element between ground and terminal 12 of the remote terminal of the plug 10 (LED or the like ) 16 is connected and jack 1
When the terminal section 2 is at the “High” level, the light emitting element 16 is turned on to visually notify the user of the reception of the reception signal.

[0020]

As described above, according to the radio communication device of the present invention, when the radio communication device main body is not operated, the original remote control terminal can be used for other purposes.
Usability is improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a main part of a wireless communication device main body showing an embodiment of a wireless communication device according to the present invention.

FIG. 2 is an operation flowchart according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating an example of application to an external speaker connected to a wireless communication device according to an embodiment of the present invention.

FIG. 4 is a diagram showing a main part configuration of an external speaker side in a conventional wireless communication device.

FIG. 5 is a diagram showing a configuration of a main part of a conventional wireless communication device main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jack 2 Remote terminal 3 Speaker terminal 4 Mode switch 5 Power supply 6 Microcomputer 8 Control port 9 Switching circuit 10 Plug 11 Speaker terminal 12 Remote terminal 13 Ground terminal 14 External speaker 15A-15C Remote switch 16 Light emitting element

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q 9/00-9/16

Claims (4)

(57) [Claims] (1)A first remote terminal provided in the wireless communication device;
And a second remote control provided on an external device.
A plug having a first terminal.
The second remote terminal is inserted into theOutside
The operation information of the remote switch provided in the device is
2 to the wireless communication device via the first remote terminal,
A wireless communication device that performs a specified remote control operation
Remote mode for remote control and squelch operation.
Mode selection switch to select squelch mode to be performedBe prepared
e, Select the squelch mode with the mode selection switch
The wireless communication device receives a carrier signal when
Then Applying a predetermined voltage to the first remote terminal
A wireless communication device characterized by the above-mentioned. 2. The wireless communication device according to claim 1, wherein a predetermined operation is performed by a voltage applied to said remote terminal. 3. The voltage applied to the remote terminal is:
The wireless communication device according to claim 1, wherein lighting of a light emitting element provided in the external device is controlled. 4. When the squelch circuit of the wireless communication device opens,
4. The wireless communication device according to claim 3, wherein the light emitting element is turned on to indicate whether or not a carrier signal has been received.