JPH04137925A - Radiotelephony system - Google Patents

Abstract

PURPOSE:To prevent the consumption of a battery built in a portable radio equipment by stopping power supply to at least one notice function provided on the portable radio equipment when disconnection between the portable radio equipment and an on-vehicle main body is detected. CONSTITUTION:When a voltage detection circuit 130 detects the disconnection between a portable radio equipment 100 and an on-vehicle main body 200, the result is informed to a CPU in an audio/control section 106. When the CPU recognizes the disconnection between the portable radio equipment and the on-vehicle main body 200, the CPU issues an instruction to a display control section 120 to stop the power supply to a display driver 118b and a back light unit 118c. Thus, the switches 118d, 118e are opened and the power supply to the display driver 118b and the back light unit 118c is stopped. Thus, when the portable radio equipment is used independently, the consumption of a charged battery 110 built in the portable radio equipment is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Field of Industrial Application) The present invention relates to a radio telephone device comprising a portable radio device and a vehicle-mounted unit main body.

(Prior Art) A radio telephone device consisting of a portable radio device and a vehicle-mounted body is a conventional car telephone device with a function for portable use added.

In other words, when used in a car, a portable radio that independently functions as a wireless telephone device and an in-vehicle unit that functions as at least a booster are used together; when used on a mobile phone, a mobile Use the radio as an independent radiotelephone device.

By the way, when using a portable radio and the vehicle-mounted unit as one unit, power consumption is not so much of a problem because they are supplied with power from the car's battery, but if the portable radio is used as an independent radio When used as a telephone device, the portable radio device is required to reduce power consumption because power is supplied from a very small battery built into the portable radio device.

However, these wireless telephone devices have come to be equipped with various additional functions similar to conventional car telephone devices, so when using the portable radio as an independent wireless telephone device, the portable radio The consumption of the built-in battery is often a problem.

In addition, in order to prevent the battery built into the portable radio device from being consumed, if the portable radio device is equipped with a VOX function and the portable radio device and the vehicle-mounted unit are used together, the VOX function should be turned off and the portable radio device When used as an independent radio telephone device, some devices turn on the VOX function.

However, when using a portable wireless device with the VOX function turned on, in places with low electric fields or strong fading, the quality of the call may deteriorate significantly, making it impossible to make a call.

(Problems to be Solved by the Invention) As described above, in the conventional radio telephone device consisting of a portable radio device and a vehicle-mounted unit main body, consumption of the built-in battery of the portable radio device is a problem due to various additional functions. It often happens.

In addition, in order to prevent the battery built into the portable radio device from being consumed, if the portable radio device is equipped with a VOX function and the portable radio device and the vehicle-mounted unit are used together, the VOX function should be turned off and the portable radio device When using the VOX as an independent wireless telephone device, there are some that turn on the VOX function, but the VOX
When using the OX function with the OX function turned on, in places where the electric field is low or where fading is strong, the quality of calls deteriorates markedly and calls sometimes become inoperable.

The present invention is intended to solve these problems, and it prevents the battery built into a portable radio from being exhausted, and also avoids problems that arise as a result of adding a function to prevent battery consumption. The purpose of the present invention is to provide a wireless telephone device that can perform the following functions.

[Structure of the Invention] (Means for Solving the Problem) The invention as claimed in claim 1 is characterized in that a portable radio device that independently functions as a radio telephone device and an in-vehicle unit main body that has at least a booster function are separated from each other. In an enabled radiotelephone device,
a detection means for detecting attachment and detachment of the portable radio and the vehicle-mounted part main body; and at least one notification function of the portable radio when detachment of the portable radio and the vehicle-mounted part main body is detected by the detection means. A power supply stop 1-means for stopping the supply of power to the device.

The invention according to claim 2 is the wireless telephone device according to claim 1, wherein the portable radio has a liquid crystal display, and the notification function for which the power supply is stopped by the power supply stop means is provided by the display on the liquid crystal display. It is characterized by being a display device.

The invention according to claim 3 is the wireless telephone device according to claim 1, wherein the portable radio sets a liquid crystal display with a biased backlight to indicate that the power supply is stopped by the power supply stop means. The present invention is characterized in that the function is a backlight provided in the liquid crystal display.

The invention according to claim 4 provides a radio telephone device in which a portable radio device that independently functions as a radio telephone device and a vehicle-mounted unit main body that has at least a booster function are detachable,
a detecting means for detecting attachment/detachment of the portable radio 11 and the vehicle-mounted section main body; and a detecting means for detecting the attachment/detachment of the portable radio 11 to the vehicle-mounted section main body; and amplification factor control means for reducing the amplification factor of the amplifying output amplifier.

The invention as set forth in claim 5 provides a radio telephone device in which a portable radio device that independently functions as a radio telephone device and has a VOX function and a vehicle-mounted unit main body that has at least a booster function are detachable. portable radio device and r'11. detecting means for detecting disengagement between the portable radio device and the vehicle-mounted section main body; When it is detected that the mobile radio is attached to the main body of the vehicle, the VOX function of the portable radio is turned off, and when the first stage of detection detects that the portable radio is detached from the main body of the vehicle, the 1% ':'h' A first switching means that enables the VOX function of the radio to be turned on/off, and when the first switching means enables the VOX function of the portable radio to be turned on/off. , a second switch that switches the VOX function on/off according to predetermined conditions.
It is equipped with a switching means.

According to a sixth aspect of the invention, in the wireless telephone device according to the fifth aspect, the predetermined condition for switching on/off of the VOX function by the second switching means is transmission quality;
When this transmission quality is good, the second switching means
The VOX function is turned on, and when the transmission quality is poor, the VOX function is turned off by the second switching means.

The invention according to claim 7 is the wireless telephone device according to claim 6, characterized in that the transmission quality is determined by the strength of the field strength signal of the received signal or the strength of fading of the received signal. .

The invention according to claim 8 is the wireless telephone device according to claim 5, wherein the portable radio device includes temperature detection means for detecting a temperature of a power amplifier that amplifies a transmission signal, and the second
The predetermined condition for switching on/off of the VOX function by the switching means is the temperature of the power amplifier detected by the temperature detection means, and when the temperature of the power amplifier is low, the second switching means The VOX function is turned off by the second switching means, and when the temperature of the power amplifier is high, the VOX function is turned on by the second switching means.

The invention according to claim 9 is the wireless telephone device according to claim 5, wherein the portable radio device biases the capacity detection means for detecting the capacity of the battery of the portable radio device, and the second switching means The predetermined condition for switching on/off of the VOX function is the capacity of the battery detected by the capacity detection means, and when the capacity of the battery is large,
The second switching means turns off the VOX function, and when the battery capacity is low, the second switching means turns on the VOX function.

The invention according to claim 10 is the wireless telephone device according to claim 5, wherein the base station to which the wireless telephone device currently belongs is VOX.
VOX compatibility detection means detects whether VOX compatibility is possible; and when the VOX compatibility detection means detects that the base station to which the wireless telephone device currently belongs is not VOX compliant
The apparatus includes a VOX function on prohibition means for prohibiting turning on of the OX function.

The invention according to claim 11 is the wireless telephone device according to claim 10, wherein the VOX compatible detection means detects whether VOX wick is possible based on system information sent from the base station. It is something to do.

[Claim] The invention as set forth in claim 2 provides a portable wireless device that independently functions as a radio telephone device, has a VOX function, and is removably attached to an in-vehicle unit main body that has at least a booster function. a detection means for detecting attachment and detachment from the vehicle body; when the detection means detects attachment of the vehicle body, the function of the VOX is turned off; and when detachment of the vehicle body is detected by the detection means; Said V
a first switching means for turning on/off the function of OX;
When the first switching means enables the function of the VOX to be turned on/off, a second switching means is provided for switching the function of the VOX on/off according to a predetermined condition. .

(Function) In the present invention, when it is detected that the portable radio device is separated from the main body of the vehicle-mounted unit, the supply of signals to at least one notification function of the portable radio device is stopped. It is possible to prevent the wear and tear of the built-in radio equipment.

Additionally, when it is detected that the portable radio is connected to the vehicle body, the white VOX function of the portable radio is turned off, and when separation is detected, the VOX function can be turned on/off. , when the VOX function can be turned on/off, the VOX function can be turned on/off according to predetermined conditions, so by adding a function to prevent battery consumption, that is, a VOX function. Derivative problems, that is, deterioration in call quality can be avoided.

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

FIG. 1 is a diagram showing the configuration of a wireless telephone device according to an embodiment of the present invention.

The radio telephone device shown in the figure is composed of a portable radio device 100 and a vehicle-mounted section main body 200.

The portable radio device 100 includes an antenna 101 and a changeover switch 1.
02. An audio/control unit that performs overall control of the entire device, consisting of a radio unit 103 that forms a wireless line with a base station (not shown) and transfers signals, a control unit 104, and an audio unit 105. section 106, IDROM 107 in which the system ID number of the zone corresponding to the location where this device is registered and the telephone number corresponding to the location where this device is registered is registered; power selector switch 1;
08 and controls the power supply to the portable radio 100, a rechargeable battery 110 that serves as a power source when portable, a connection section 111 connected to the vehicle-mounted section main body 200, an operation display section 112, an audible sound Speaker for input/output] 13 and microphone 114, output amplifier 11
5. The main part consists of human power amplification 'ri1 'l6.

The operation display section 112 includes a key section 117 where a predetermined key is operated manually, a display section 118 where a predetermined display is performed, a switch section 119 where various types of switching are performed, a key section]17, a display section]1
8 and a switch section] 20, a voltage detection circuit for detecting the voltage level of the power supply path 130a] 30. Based on the voltage level detected by the voltage detection circuit 30, attachment/detachment between the portable wireless device 00 and the vehicle-mounted section main body 200 is detected.

That is, when the above voltage level is at a certain value, it is assumed that the portable radio device 00 and the vehicle-mounted unit main body 200 are connected, and when the above voltage level reaches 0 level, the portable radio device 100 and the vehicle body 200 are considered to be connected. It is assumed that the in-vehicle section main body 200 has been separated.

The output amplifier 115 is the audio section 1 of the portable radio device 100.
The audible line signal (right bank t=) sent from 05 is amplified and output from speaker 113. The input amplifier 116 amplifies the audible signal (speech signal) input from the microphone 114. The amplified signal is manually input to the audio section 105 of the portable radio device 100.

The operation/display control unit 120 is the audio/control unit 106
It performs overall control on the operation display section 112 based on control signals sent from the control section 117, and also sends out control signals manually inputted from the key section 117 to the audio/control section 106. As shown in FIG. 2, the display unit 118 includes a liquid crystal display 118a, a display driver 18b, a backlight unit 118C, and switches 1, 8d, and 118e.

The display driver 118b drives the liquid crystal display 118a under the control of the operation/display control section 120 to perform a predetermined display. The backlight unit 118c is arranged on the back surface of the liquid crystal display 118a and serves as a light source for the liquid crystal display 118a. The switch 118d switches the supply of power to the display driver 1]8b based on the control of the operation/display UJ control section 120. The switch 108e switches the backlight unit 10 based on the control of the operation/display control section 120.
Switch the power supply to 8c. Ki part 117 is “0
” to “9” number keys “*”, “#”, rSNDJ
, rsTOJ, rENDJ, rRCL
JrFcNJ rcLRJ, rEMRJ
, r MU TE'', rTONEJ, and a keypad (not shown), which is recognized by the operation/display control unit 120 when the keypad is pressed.

The switch unit 119 is provided with a hook switch and an 0N10FF switch (not shown), and the on-footer or off-footer of the portable radio device 100 is detected by the hook switch. Note that the hook switch may be provided on the vehicle-mounted section main body 200. The 0N10FF switch switches the 0N10FF of the entire wireless telephone device, and the switching signal is sent from the operation/display control section 120 to the audio/control section 106.

The in-vehicle main unit 200 includes an antenna 20 attached to the vehicle.
1. A booster 20' that amplifies the signal transmitted and received by the antenna 201 to a constant power;
Audio/control unit 20 that performs overall control of the entire 00
3. A power supply control unit 204 that supplies power from the vehicle battery B to various parts, a connection unit 205 that is connected to the connection unit 111 of the portable radio 100 via the coaxial cable 300, and a speaker for inputting and outputting audible sounds. 206 and microphone 20
7. The main part is composed of an output amplifier 208 and an input amplifier 209. The booster 202 is an antenna duplexer 2
10, 211, receiving amplifier 212, transmitting amplifier 21
3. An automatic power control circuit (APC) 2]4 that controls the transmission level of the transmission amplifier 213.

Next, details of the portable radio device 100 will be explained.

FIG. 3 is a block diagram showing in detail the configuration of the above-mentioned portable radio device 100.

As shown in the figure, the radio section 103 includes a demodulator 131, a modulator 132, a power amplifier 133, a duplexer 134,
It is composed of a synthesizer 135 and a receiving electric field strength 8Pj determining section 136. The demodulator 131 is a mobile radio device 100
From a base station that is manually operated via the antenna 101, selector switch [02] and duplexer 134 on the side, or via the antenna 201, booster 202, selector switch 102, and duplexer] 34 on the vehicle-mounted part main body 200 side. Demodulates the received signal. Note that this signal includes a control signal, an audible sound signal, and the like. The modulator 132 is
The audible sound signal, control signal, etc. outputted from the audio/control unit IC16 are modulated into transmission signals. The power amplifier 133 amplifies the transmission signal output from the modulator]32. Transmitter/receiver duplexer 1' and 4 are antennas]0]
or the antenna 20], and transmits the received symbols inputted via the demodulator 13] to the demodulator 13], and transmits the transmitted signal manually input via the modulator 132 and the power amplifier 133 to the antenna]0.
1 or antenna 201. Synthesizer] 3
5 is a local oscillator for channel selection, and demodulator 131
The frequency to be modulated by the modulator 132 and the frequency to be modulated by the modulator 132 are specified. The received electric field strength 71PI determining unit 136 measures the electric field strength of the received signal received by the antenna 101 and transmits the measurement result to the CPU 161.

The audio/control unit 106 includes a CPU 161, an oscillator/
Frequency divider 162, address decoder 163, ROM 164
, RAM 165, radio section control section 166, audio section 1
67, control signal processing section 168, audio section control section 16
9, digital interface 170, interrupt controller 171, voice human power detection section] 75.

In the figure, 1(]7 is the above-mentioned IDROM, 109 is a power supply control unit, 172 is, for example, an 8-bit data bus,
173 is an address bus, and 174 is a control bus.

The CPU 161 performs overall control of the audio/control unit 106 as a whole. Further, the CPU 161 realizes the function of VOX. That is, based on the detection result of whether an audible sound signal is input to the microphone 114 transmitted from the audio input detection section 175, if an audible sound signal is input to the microphone 114, the power amplifier 133 is turned on. If transmission is enabled, and no audible signal is input to microphone 114, power amplifier 133 is turned off to disable transmission. The oscillator/frequency divider 162 is the CPU 16
], and also divides the frequency of this clock and supplies it as a timing signal to each part. Address decoder 163 outputs predetermined operation signals to each section in response to command signals from CPU 161. ROM164 is C
Various programs necessary for the operation of the PU 16 are written t5. The RAM 165 stores various data during processing by the CPU 61. The wireless unit control unit 166 is a CPU]6
The wireless unit 1.03 is controlled based on the command of No. 1. For example, the radio section control section 166 instructs the frequency to be specified by the synthesizer 135, the amplification factor to be amplified by the power amplifier 133, the modulation degree to be modulated by the modulator 132, etc.; The out-of-sync signal output from the power amplifier 133, the output detection signal output from the power amplifier 133, etc. are input to the CPU 161.
tell. The audio section 167 converts the control signal out of the received 15'' signal demodulated by the demodulator 131 into the control signal processing section 1.
68, and among the received signals, an audible sound signal is sent to the speaker]]3 via the output amplifier [15]. Also,
The audio section 167 receives the control signal output from the control signal processing section 168 and the input amplifier 11 from the microphone 1]4.
The audible sound signal outputted via 6 is sent to a modulator 132.

Note that the audio section 167 has a function of shaping the waveform of the control signal to be sent to the control signal processing section 168 and filtering the control signal to be sent to the modulator 132.

The control signal processing unit 168 performs bit synchronization and frame synchronization with the control signal output from the audio unit 67, and captures control data from the base station included in the control signal, which is a serial signal, as a parallel signal. On the other hand, control data as a parallel signal to be sent to another base station is sent to the audio section 167 as a control signal that is a serial signal. The audio unit control unit 169 is an audio unit]
67 various controls are performed. For example, the audio section control section 169 performs switching control to send the received signal from the audio section 167 to the control signal processing section 168 or the output amplifier 115, and the control signal processing section 168 or the power transmission output from the human power amplifier 116. Switching control is performed to input one of the signals into the audio section 167.

The digital interface 170 provides an interface between the audio/control unit 106 and the operation display unit]]2. The interrupt controller 171 interrupts the CPU 161 in response to interrupt commands from various parts. The audio input detection unit 175 detects the audio input from the microphone 114]
Diode 17 detects the audible sound signal received by the interrogator 67
5a, and a comparator 175b that compares the signal detected by the diode 175a with the ground level.
A converter 175c that uses the results compared by the comparator 175b as data, detects the signal level (presence or absence of a signal) of an audible sound signal input from the microphone 114 into the audio section 167, and transmits the result to the CPU 161.
tell.

Next, various operations of the radio telephone device configured as described above will be explained.

FIG. 4 is a flowchart for explaining one operation.

Voltage detection circuit] 30 detects attachment/detachment of portable radio device 100 and vehicle-mounted unit main body 200.

Then, when the separation between the portable radio device 100 and the vehicle-mounted section main body 200 is detected, the result is transmitted to the CPU 161.

The CPU 161 includes a portable radio device 1.00 and an in-vehicle unit main body 20.
0 (step 401), it issues a command to the display/control unit 120 to stop supplying power to the display driver 108b and backlight unit 108c (step 4o2).

As a result, the switches 108d and 108e are opened, and the display driver 108b and backlight unit 1 are opened.
The power supply to 08c is stopped.

Therefore, when the portable radio device is used independently, consumption of the rechargeable battery 110 built into the portable radio device can be prevented.

Note that the above-mentioned power supply stoppage is performed by the display driver]0
It goes without saying that the process may be performed only for either the backlight unit 8b or the backlight unit 108C.

Further, the same procedure can be applied to other notification functions as well.

Furthermore, instead of stopping the supply of electric power, the amplification factor of the output amplifier 115 is configured to be variable by the CPU 161, so that when the portable radio is used independently, the output from the speaker 113 is The volume of the audio may also be lowered.

FIG. 5 is a flowchart for explaining another embodiment.

When the power is turned on (step 501), the voltage detection circuit 130 detects the attachment and detachment of the portable radio device 100 and the vehicle-mounted unit main body 200 (step 502).

When the CPU 161 detects whether the mobile radio OC1 and the vehicle-mounted unit main body 200 are connected, the CPU 161 turns off the VOX function (step 503).

On the other hand, when it is detected that the portable radio device 100 is separated from the vehicle-mounted unit main body 200, it is detected whether the base station that the radio telephone device is currently stationed at is VOX-compatible i+7 capable (step 50).
4). In this way, it is possible to determine whether or not the V OX +-iJ function is available, based on, for example, system information sent from the base station. That is, the system information sent from the base station usually includes information indicating whether the base station is VOX compatible.

Then, if the base station is not capable of supporting VOX, VO
The function of X is turned off (step 503).

On the other hand, if the base station is capable of supporting VOX, it enables the VOX function to be turned on/off (step 505). Subsequently, it is determined whether the transmission quality of the signal transmitted by this portable radio device 100 is good or bad (step 506). When it is determined that the transmission quality is good, the VOX function is turned on (step 507), and when it is determined that the transmission quality is poor, the VOX function is turned off (step 503).

The quality of the transmission signal transmitted by the portable wireless device 100 described above is determined by, for example, the strength of the field strength signal of the received signal measured by the received field strength measuring section 136 or the strength of fading of the received signal. do it.

Therefore, in this case, it is possible to avoid deterioration in call quality caused by adding the VOX function to prevent battery consumption.

In the example described above, the VOX function is turned on/off based on the quality of the transmission signal transmitted by the portable wireless device 100.
Previously, VOX was switched off, but now it has a temperature detection function that detects the temperature of the power amplifier 133 that amplifies the transmitted signal, and when the temperature of the power amplifier 133 is low, the VOX
It is also possible to turn off the function of VOX and turn on the function of VOX when the temperature of the power amplifier 133 is high. In this case, damage to the power amplifier 133 due to overheating can be avoided.

Also, the rechargeable battery 110! - A capacity detection function for detecting the capacity of the battery may be provided, and when the capacity of the rechargeable battery 110 is large, the VOX function is turned off, and when the capacity of the rechargeable battery 110 is low, the VOX function is turned on. .

[Effects of the Invention] As explained above, according to the present invention, it is possible to prevent the built-in battery of a portable radio from being consumed, and to avoid problems that arise as a result of adding a function to prevent battery consumption. can do.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of a wireless telephone device according to an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of the display section shown in FIG. 1, and FIG. A block diagram showing the configuration of the radio device in detail, and FIGS. 4 and 5 are flowcharts for explaining the present invention in detail. 100...Portable radio device, 101...Antenna, 10
3... Radio section, 104... Control section, 105... Audio section, 106... Audio/control section, 109.
... Power supply control unit, 110... Rechargeable battery, 200...
Vehicle-mounted unit main body, 112... Operation display unit, 113... Speaker, 114... Microphone, 115... Output amplifier, 118... Display unit, 118a... Liquid crystal display, 1
18b...Display driver, 118c...Backlight unit, 118d, 118e...Switch, 12
0... Operation/display control unit, 130... Voltage detection circuit, 13]... Demodulator, 132... Modulator, 133...
・Power amplifier, 134... Transmitter/receiver duplexer, 135...
Synthesizer, 136... Received electric field strength measuring section, ]6
1...CPU, 167...Audio section, 175...
R re-input detection section. Applicant: Toshiba Corporation

Claims (12)

[Claims] (1) In a radio telephone device in which a portable radio that independently functions as a radio telephone device and a vehicle-mounted unit main body that has at least the function of a booster are detachable, the portable radio and the vehicle-mounted unit main body can be attached and detached. and a power supply stop means that stops supplying power to at least one notification function of the portable radio when the detection means detects that the portable radio is detached from the vehicle-mounted unit main body. A wireless telephone device comprising: (2) In the radio telephone device according to claim 1, the portable radio has a liquid crystal display, and the notification function for which the power supply is stopped by the power supply stop means is the liquid crystal display. A wireless telephone device characterized by: (3) The radio telephone device according to claim 1, wherein the portable radio has a liquid crystal display equipped with a backlight, and the notification function for which the power supply is stopped by the power supply stop means is provided on the liquid crystal display. A wireless telephone device characterized by a backlight provided in a display. (4) In a radio telephone device in which a portable radio that independently functions as a radio telephone device and a vehicle-mounted unit main body having at least a booster function are detachable, the portable radio and the vehicle-mounted unit main body can be attached and detached. and amplification factor control means for reducing the amplification factor of an output amplifier that amplifies the output audio of the portable radio device when the detection device detects separation of the portable radio device from the vehicle-mounted unit main body. A wireless telephone device comprising: (5) In a radio telephone device in which a portable radio device that independently functions as a radio telephone device and has a VOX function and a vehicle-mounted unit main body that has at least a booster function are detachable, the portable radio device and a detection means for detecting attachment/detachment to the vehicle-mounted part main body; and when the detection means detects attachment of the portable radio to the vehicle-mounted part main body, a VOX function of the portable radio is turned off; a first switching means for turning on/off a VOX function of the portable radio when separation of the portable radio from the in-vehicle main body is detected; 1. A wireless telephone device comprising: second switching means for switching the VOX function on/off according to a predetermined condition when the VOX function of the wireless telephone device is enabled to be turned on/off. (6) The radio telephone device according to claim 5, wherein the second
The predetermined condition for switching the VOX function on/off by the second switching means is the transmission quality, and when the transmission quality is good, the second switching means switches the VOX function on and off.
1. A wireless telephone device, characterized in that the VOX function is turned on, and when the transmission quality is poor, the VOX function is turned off by a second switching means. (7) The radio telephone device according to claim 6, wherein the transmission quality is determined by the strength of a field strength signal of a received signal or the strength of fading of a received signal. (8) The radio telephone device according to claim 5, wherein the portable radio device includes temperature detection means for detecting the temperature of a power amplifier that amplifies the transmission signal, and the second switching means turns on/off the VOX function. The predetermined condition for switching off is the temperature of the power amplifier detected by the temperature detection means, and when the temperature of the power amplifier is low, the second switching means turns off the VOX function, and the power amplifier 1. A wireless telephone device characterized in that when the temperature of the wireless telephone device is high, the VOX function is turned on by the second switching means. (9) The radio telephone device according to claim 5, wherein the portable radio device includes capacity detection means for detecting the capacity of a battery of the portable radio device, and the second switching means
The predetermined conditions for switching on/off of the OX function are
This is the capacity of the battery detected by the capacity detection means. When the battery capacity is large, the second switching means turns off the VOX function, and when the battery capacity is low, the second switching means turns off the VOX function. A wireless telephone device characterized in that the function is turned on. (10) The radio telephone device according to claim 5, further comprising a VOX compatibility detection means for detecting whether the base station to which the radio telephone device currently belongs is VOX compatible; The base station to which it belongs is VOX
1. A radio telephone device comprising: VOX function on prohibition means for prohibiting turning on of a VOX function when it is detected that the VOX function is not compatible. (11) The radio telephone device according to claim 10, wherein the VOX compatibility detection means detects whether VOX compatibility is possible based on system information sent from the base station. (12) Functions independently as a wireless telephone device and V
A portable wireless device having an OX function and at least a booster function and capable of being attached to and detached from a vehicle-mounted body, includes a detection means for detecting attachment and detachment from the vehicle-mounted body; When mounting is detected, the function of the VOX is turned off, and when detachment of the vehicle-mounted part main body is detected by the detection means, the function of the VOX is turned on/off.
a first switching means that enables the VOX function to be turned off; and a second switching means that switches the VOX function on and off according to predetermined conditions when the first switching means enables the VOX function to be turned on and off; 1. A portable wireless device comprising: switching means.