JP2003143032A - Personal wireless device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a personal wireless device capable of realizing smooth communication by eliminating 'missing of the head' of a received voice at the beginning of reception. SOLUTION: The personal wireless device, which is provided with vibration for incoming call function for information a call by means of vibration and is capable of directly making a communication with another wireless device of via a repeater, is provided with a vibration means which starts vibration simultaneously with the incoming of a voice signal transmitted from the opposite party's wireless device and stops the vibration, after the lapse of a prescribed time or by operating a prescribed key, and a receiving means which starts reception simultaneously with the incoming of the voice signal transmitted from the opposite party's device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal radio that can communicate with each other directly or via a relay. The personal wireless device in this specification is a two-way portable walkie-talkie wireless system (two-way handheld walk system).
ie-talkie system) and family radio services (FRS: Fam
Includes radios used in ily Radio Service), simple / specified low power / commercial handy transceivers, etc.

[0002]

2. Description of the Related Art A predetermined frequency band is assigned to a personal wireless device (hereinafter, simply referred to as a wireless device), and a frequency in this frequency band is used for mutual communication between a plurality of wireless institutions in a short distance. Be done. In addition, mutual communication can be performed with a wireless device at a long distance via a repeater such as a repeater. However, a repeater in a wireless device is basically different in configuration from a base station used in a cellular phone or a PHS phone.

FIG. 14 is a block diagram of a communication system using a personal radio which performs mutual communication via a repeater (repeater). In this system, the radios are grouped and each radio belongs to one of the groups. The same tone code (group code) is assigned to the wireless devices belonging to each group. By assigning different tone codes to each group, it is possible to perform communication only between wireless devices having the same tone code even if the communication uses the same frequency.

In the system shown in FIG. 14, the wireless devices belong to one of three groups (A group, B group, C group), and the wireless devices A-1 and A-2 belong to the A group. However, for group B, radio B-1,
B-2 belongs to the C group, and wireless devices C-1 and C-2 belong to the C group. The uplink frequency f _TX from each radio to the repeater is 464 MHz, and the downlink frequency f _RX from each repeater to each radio is 469 MHz. The tone code is usually set by selective call signaling. CTCSS (Continuous Tone Control Squelch Syste) is used for selective call signaling.
m), DCS (Digital Code Squelch), MSK (Minimum Shi
ft Keying), DTMF (Dual Tone Multi-Frequency), etc. are used alone or as a combination thereof, but the system of FIG. 14 uses CTCSS.

In CTCSS, a tone signal of 300 Hz or less is superimposed on a voice signal by an encoder (E), and this signal is detected by data (D) to control squelch. As a tone signal, 67 Hz is assigned to the A group, 88.5 Hz is assigned to the B group, and 100 Hz is assigned to the C group. Radio A belonging to Group A
-1, A-2 can communicate with each other at the frequency T ₁ (f _TX , f _RX ), but during that time, the radios B-1, B-2, C-1, C- belonging to the B and C groups. No. 2 cannot detect the tone signal (67 Hz), so the speaker output is muted and communication cannot be performed. B,
Since the same applies to the wireless devices belonging to the C group, communication can be performed only between wireless stations belonging to the same group.

[0006] Many of such radios have a beep sounding function so that they can recognize that they have been called by another radio. Further, recently, there is one having a vibration incoming function together with or instead of the beep sound function. The beep sound ringing function is used for the receiving side wireless device to recognize the beep sound transmitted from the transmitting side wireless device and to make a response. However, in a place such as a construction site where there is a large amount of ambient noise, the beep sound is difficult to recognize, and therefore a device having a vibration incoming call function is used.

Since the vibrator incorporated in the wireless device starts vibrating when an incoming call is received from the partner wireless device, there is an advantage that the incoming call can be easily recognized. Generally, a radio will "start a call" when it first receives a signal from another radio, or when it first makes a transmission, while receiving a signal from another radio, and It is regarded as "in a call" while it is transmitting, and "end of a call" when a signal from another wireless device cannot be received for a certain period of time.

Here, the conventional personal radio having the vibration incoming call function operates as follows when the vibration incoming call function is ON. When the tone signal is detected by the built-in signal detector, the vibrator starts to vibrate. During the vibration of the vibrator, the received audio signal is not output from the speaker. This is because the audio signal is muted. When the beep sound ringing function is provided, a different beep sound is set and sounds for each of several kinds of call tones.

The voice signal is not output from the speaker even during the beep sound. At this time, if the operator presses any key on the transceiver, such as the PTT (Press to Talk) switch, to start a call, or if the vibration duration set in the pre-lock timer elapses, the vibrator The vibration and the beeping sound of the are stopped, after which the mute is released and the received sound is output. Note that once the vibrator vibrates, it does not vibrate even if the signal is detected again unless the signal is not being transmitted and the time during which the received signal cannot be detected exceeds a certain time.

FIG. 12 is a time chart for explaining an incoming call operation of a conventional radio with a vibration incoming call function. When the transmitting voice signal (A) is transmitted from the transmitting radio device at time t ₁ , the receiving radio device detects that the tone signals arriving together with the transmitting voice signal coincide with each other. ₁ starts vibration of the vibrator (B) with (radio propagation delay of the radio engine is neglected). When the key operation for a response operation such as pressing the PTT switch on the receiving side is performed or when the preset vibration duration time has elapsed (time t ₂ ), the vibration of the vibrator stops.
When the vibration of the vibrator stops, the mute operation of the signal path from the reception circuit to the speaker is stopped, and the reception sound based on the reception sound signal (C) is output from the speaker.

As described above, once the vibrator vibrates (after the time t ₁ ), the vibration does not start even if the transmission voice signal (A) is detected again unless the signal is interrupted for a certain period of time. _The vibration does not start at ₄ and t ₆ . After time t _7, since the signal interruption has passed a predetermined time, the call is terminated at time t _8. Therefore, one call is from time t ₁ to time t ₈ . Then time t
_{When the} transmission voice signal (A) is detected at ₉ , vibration starts and the next call is made.

FIG. 13 is a time chart for explaining an incoming call operation of a radio having both a vibration incoming call function and a beep sound ringing function. First, the transmitting side operates an operation key (for example, a call key) of a wireless device to transmit a waveform (call tone) of a beep sound, and at time t ₀ , ringing of a received beep sound starts, and at time t _1, it rings. The operation similar to the case of FIG. 12 is performed except that the operation of stopping is added. The vibration of the vibrator starts at time t ₀ together with the ringing of the received beep.

[0013]

Generally, in a personal wireless device, when the transmitting side tries to start a call,
It is normal to press the PTT switch to immediately start a call. Also, in the radio with beep sound calling function,
After pressing the call key (Call Key) for sending out the beep signal, the PTT switch is pressed to immediately start the call.

However, as described with reference to FIGS. 12 and 13, in the conventional wireless device, the vibration of the vibrator does not stop until processing such as key operation on the receiving side or a certain period of time elapses, and the vibration from the transmitting side is not stopped. I couldn't hear the voice. That is, in the time T ₁ section shown in FIG. 12 or the time T ₂ section shown in FIG. 13, there occurs a state in which the audio output is not obtained from the speaker even though the audio signal is transmitted from the transmitting side. This is called a "head cut" of a call, and this "head cut" occurs at the beginning of the call for each call.

In order to prevent this "head loss", the transmitting side may transmit the audio signal after waiting for the receiving side to stop the vibration of the vibrator. I don't know if the vibration has stopped. Therefore, it was necessary to stop the transmission, wait for the response from the receiving side, and then start the call.
Therefore, there is a problem that the call cannot be started smoothly. The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a personal wireless device that can realize a smooth call without "cutting head".

[0016]

SUMMARY OF THE INVENTION The present invention provides a personal wireless device having a vibration incoming call function for notifying a call by vibration and capable of communicating with other wireless devices directly or through a relay device. A vibrating means that starts vibrating at the same time as the arrival of a voice signal transmitted from another wireless device and stops the vibrating by a predetermined time period or a predetermined key operation,
Receiving means for starting reception at the same time when the voice signal transmitted from the other radio is received.

Further, the present invention is a personal wireless device having a vibration incoming function for notifying a call by vibration and capable of mutually communicating with another wireless device directly or via a relay device. At the same time as the incoming of the beep sound signal transmitted from the start of the vibration and the vibration means for stopping the vibration by the lapse of a predetermined time or by the operation of a predetermined key, and the arrival of the voice signal transmitted from the other radio device. Receiving means for starting reception.

Further, the present invention is provided with a vibration incoming function for notifying a call by vibrating when a radio wave having a matching tone code is received, and it is possible to communicate with other wireless devices directly or mutually via a repeater. In personal radio,
Vibrating means for starting vibration at the same time when a tone signal whose tone code matches with a voice signal transmitted from the other wireless device is received and stopping the vibration after a lapse of a predetermined time or a predetermined key operation, and the other wireless device. And a receiving means for starting reception at the same time as the arrival of the tone signal having the same tone code as that transmitted from the tone signal.

Further, the present invention is provided with a vibration incoming function for notifying a call by vibrating when a radio wave having a matching tone code is received, and is a personal computer which can communicate with other wireless devices directly or through a relay device. In the wireless device, vibration is started at the same time as the arrival of the beep sound signal transmitted from the other wireless device and the tone signal having the matching tone code,
A vibrating means for stopping the vibration after a lapse of a predetermined time or a predetermined key operation, and a receiving means for starting the reception at the same time as the arrival of the tone signal whose tone code matches the voice signal transmitted from the other radio device are provided. .

Further, the present invention is characterized in that, in the personal radio set forth above, the tone code is set by selective call signaling. Furthermore, the present invention provides the above-described personal radio device, wherein the selective call signaling is CTCSS, DCS, MSK.
Alternatively, any one of DTMF or a combination thereof may be used.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a flow chart for explaining the operation of a wireless device of the present invention having at least a vibration incoming function. First, in step 100, the vibration incoming function is turned on by, for example, an operation key of a wireless device (not shown).
When set to, the start of vibration of the vibrator is permitted. Then, it is detected whether or not the PTT switch for communication is pressed (step 102). If it is pressed, the wireless device is in the transmitting state (step 108),
The vibration of the vibrator is prohibited (step 110), the timer A that sets the vibration duration of the vibrator is reset (step 112), and the process returns to the state of step 102. When the PTT switch is not pressed, the reception standby state (step 104) is set. Therefore, in this state, a voice signal from another radio is received (step 10).
6). If there is an incoming voice signal, start receiving immediately,
The voice is output to the speaker (step 114).

Next, it is checked whether or not the vibration start of the vibrator is permitted (step 118), and if it is permitted, the vibration is started (step 120). Once the vibration starts, it stops when a key operation is performed or the duration set in the timer A elapses. Further, after the vibration once, a process of prohibiting the re-vibration is performed unless the received signal is interrupted for a predetermined time or longer (step 122).

Then, the timer A is reset (step 124). If no audio signal is received in step 106, no speaker output is performed (step 116), and the process proceeds to step 126. When the time set in the timer A has elapsed (step 126), if the vibrator is vibrating, stop it (step 128),
In preparation for the next call, processing for permitting the start of vibration is performed (step 130).

FIG. 6 is a block diagram showing an example of the configuration of the receiving section of the radio device according to the present invention. The reception signal received via the antenna 10 is detected by the reception circuit 20 including the RF circuit 22, the IF circuit 24, and the AF circuit 26,
It is output to the speaker 48 via the speaker switch 46.

The received signal includes a voice signal, a carrier signal, and a tone signal such as CTCSS. Figure 6
In the circuit shown in (1), the audio signal in the received signal is detected by the signal detector. When the audio signal is detected, the CPU 40 closes the speaker switch 46 and the vibrator switch 42, and starts the vibration of the vibrator. The vibration of the vibrator once started is stopped after a certain period of time set in a timer (not shown), but is stopped even if the PTT switch 50 is pressed. As described above, in the circuit of FIG. 6, since a voice signal transmitted from another radio is detected and at the same time the voice signal is received and the vibrator vibrates, the received voice signal “breaks”. There is no such thing.

In FIG. 7, the carrier signal and the tone signal in the received signal are detected at the same time, and the speaker switch 46 and the vibrator switch 42 are controlled simultaneously. The carrier wave detector 32 detects whether there is a carrier wave at the currently used frequency and transmits it to the CPU 40. C
The TCSS / DCS detector 34 detects CTCSS in the received signal.
It is detected whether or not a tone signal such as DCS or DCS is present, or if it is present, a match with a preset tone code is detected, and the result is transmitted to the CPU 40. Therefore, in the case of the circuit of FIG. 7, the vibrator 44 vibrates and a voice output is obtained from the speaker 48 only when the voice signal and the tone signal with the matched tone code are simultaneously detected. In the above-described embodiment, the wireless device does not have the beep sound function for calling the other party, but the present invention is also applicable to the wireless device having the beep sound function.

FIG. 8 is a block diagram showing a configuration of a transmitter of a radio having a function of transmitting a beep sound (or a call tone). In order to transmit a beep sound from the transmitter of the wireless device shown in FIG. 8 to the partner wireless device, the call key 72 is pressed. Then, the CPU 70 supplies power to the transmission circuit 60, turns off the microphone switch and turns on the call tone switch, activates the call tone generation circuit 84, and generates a beep signal in the voice band. CPU70
Since the call tone switch 78 is closed, the beep signal generated by the call tone generation circuit 84 is transmitted to the transmission circuit 60 and transmitted from the antenna 10. The transmission circuit 60 includes a modulation circuit 66, a VCO 64, an RF amplifier 6
It consists of two.

Then, when the PTT switch 74 is pressed, the CPU supplies power to the transmission circuit 60, turns on the microphone switch 80 and turns off the call tone switch.
Thereby, the voice from the microphone 82 can be transmitted. At this time, in the receiving unit of the partner radio, the vibrator vibrates along with the beeping sound, and at the same time, a voice signal is output.

2 to 5 are time charts for explaining the incoming operation of the wireless device with the vibration incoming function according to the present invention.
FIG. 2 shows the operation in the case of a wireless device having only a vibration incoming call function. When the transmission voice signal (A) is transmitted from the transmission side radio device at time t ₁ , the reception side radio device detects the tone signal or the transmission voice signal and starts the vibration (B) of the vibrator at time t _1. To do. When a key operation for a response operation such as pressing the PTT switch on the receiving side is performed or when a preset vibration duration time elapses, the vibration of the vibrator stops at time t ₂ . Unlike the conventional wireless device, the reception circuit operates simultaneously with the vibration of the vibrator, and the reception voice based on the reception voice signal (c) is output from the speaker from the time point of time t ₁ . Therefore, the problem of "cutting out" does not occur. The operation after the time t ₃ is the same as the operation in the case of the conventional wireless device shown in FIG.

FIG. 3 is a time chart for explaining an incoming call operation of the wireless device of the present invention having both the vibration incoming call function and the beep sounding function. Ringing reception beep starts at time t _0, except that ringing is stopped at time t ₁ is the case similar to the operation 2 is performed. The vibration of the vibrator starts at time t ₀ together with the ringing of the reception beep sound.

FIG. 4 is a time chart for explaining the operation of the radio device of the present invention having a vibration incoming function which operates only when a radio wave having the same tone code is received. At the same time as the arrival of the tone signal (G) having the same tone code as the transmitted voice signal (A) by the other wireless device, the vibration of the vibrator is started at time t ₁ , and a predetermined time elapses or a predetermined key operation causes a time t. Stop the vibration at ₂ . At the same time as the vibration of the vibrator, the receiving circuit operates, and the received voice based on the received voice signal (C) is output from the speaker from the time t ₁ .

FIG. 5 is a time chart for explaining an incoming operation when the wireless device of FIG. 4 is further provided with a beep sounding function. At time t ₀ , the vibration of the vibrator starts simultaneously with the arrival of the beep sound signal transmitted from another wireless device and the tone signal having the same tone code. Further, at time t ₁ , when a voice signal transmitted from another wireless device and a tone signal with the same tone code arrive together, the reception voice based on the reception voice signal (C) is output from the speaker. In any of the cases shown in FIGS. 3 to 5, the problem of “cutting out” of the received voice does not occur.

The present invention uses MSK and DTM as tone signals.
It can also be applied in combination with the vibration incoming call function to a radio having an individual calling function using F. The transmitting side uses the MSK or DTMF to make an individual ID call by using an operation key (not shown) (after selecting the calling party) and sends the ID. The receiving side can listen to the received voice only when it is called (when it matches the self ID), or can listen to all the received voices. Then, only the called party's wireless device vibrates the vibrator.

FIG. 9 is a block diagram showing the structure of the transmitter of the radio having the above-mentioned functions. The same parts as those of the circuit configuration shown in FIG. 8 are designated by the same reference numerals, and detailed description thereof will be omitted. In the circuit of FIG. 9, an MSK generation circuit 76 is provided instead of the call tone generation circuit 84 in the circuit of FIG. In addition, the memory 71 in the CPU 70 stores the IDs of the radio stations A and B of the calling party together with the ID of the local station. When the PTT switch 74 is pressed, C
The PU 70 turns on the transmission circuit 60, turns off the microphone switch, and turns on the MSK switch 78 to output the ID of the partner station. When the output of MSK from the MSK generation circuit 76 is completed, the MSK switch 78 is turned off and the microphone switch 80 is turned on. Select switch 72 here
When the wireless device A is selected by, the received voice is heard and the vibrator vibrates in the wireless device A.

On the other hand, in the wireless device B which is not selected, the received voice can be heard but the vibrator does not vibrate.
The ID of the partner station stored in the memory 71 can be rewritten using an external device such as a personal computer.

FIG. 10 is a block diagram showing the configuration of the receiving unit of the radio device on the other side of the radio device of FIG. The same parts as those of the circuit shown in FIG. 7 are designated by the same reference numerals. Figure 7 DTC
An MSK detector 36 is provided instead of the SS / DCS detector 34. The MSK signal sent from the partner radio is decoded by the MSK detector 36 and sent to the CPU 40. The MSK signal is composed of a bit string of "1" or "0", and the CPU 40 of the radio A and the radio B
Is a bit string from the MSK detector and the memory 4 of the CPU 40.
Compare with the own station ID in 1.

When the received signal matches with its own code, the CPU 40 turns on the vibrator switch 42 to vibrate the vibrator 44. On the other hand, radios A and B
The speaker is controlled by the signal from the carrier detector, and the signal from the MSK detector does not affect the speaker output. In this way, the receiving side uses MSK or DT
The vibrator vibrates only when the own station is called by the MF. Since the speaker is turned on / off regardless of MSK or DTMF, it is possible to know that the own station is called while monitoring all calls. Further, when the local station is called, a sound can be output immediately without making a beep sound, so that the transmitting side can start a conversation without waiting for a response from the receiving side.

The present invention can be mixed with the conventional operation in which voice is not output until the vibrator is stopped by adding a command to the MSK signal. FIG. 11 is a flowchart for explaining such an embodiment, and FIG.
(B) shows the procedure on the receiving side. When the PTT switch is pressed on the transmitting side (wireless device A) (step 200), the command "A" and the partner station ID are transmitted (step 202). PT after sending MSK
The voice from the microphone is continuously transmitted until the T switch is released (steps 204 and 206).

On the other hand, when the call key switch is pressed (step 201), the command "B" and the partner station I
And D are transmitted (step 203). After that, steps 205 and 207 similar to steps 204 and 206 are executed. This results in steps 200, 202, 204, 2
At 06, the operation of the present invention is executed, and steps 201 and 201 are executed.
In 03, 205 and 207, the conventional operation is executed. On the receiving side, after the local station is called (step 300), the received command is judged (step 3).
02). When the command "A" is detected, the vibrator is vibrated (step 304) and the received voice is output to the speaker (step 306). As a result, the operation of the present invention is executed.

When the command "B" is detected, the vibrator is vibrated (step 301) and at the same time, a beep sound is produced (step 303). Then, the output of the reception voice is started after the vibration and the beeping are stopped (step 305). As a result, the conventional operation is executed.
By thus mixing the operation of the present invention and the conventional operation, it is possible to perform a flexible transmission process according to the situation of the receiving user. That is, it is better to execute the conventional operation when the receiving side user is at a work site where noise or the like is severe.

[0041]

As described above, in the wireless device of the present invention, the signal of the vibrator is started at the same time as the incoming call at the time of reception and the voice is output, so that the "head cut" of the received voice does not occur. Also, the sender can immediately start a conversation without waiting for the other party's response. Therefore, a smooth call can be realized.

[Brief description of drawings]

FIG. 1 is a flowchart illustrating the operation of a wireless device of the present invention having at least a vibration incoming call function.

FIG. 2 is a time chart for explaining an incoming call operation of a wireless device with a vibration incoming call function according to the present invention.

FIG. 3 is a time chart for explaining an incoming call operation of a wireless device with a vibration incoming call function according to the present invention.

FIG. 4 is a time chart for explaining an incoming call operation of a wireless device with a vibration incoming call function according to the present invention.

FIG. 5 is a time chart for explaining an incoming call operation when the wireless device with a vibration incoming call function according to the present invention is further provided with a beep sounding function.

FIG. 6 is a block diagram showing an example of a configuration of a receiving unit of a wireless device according to the present invention.

FIG. 7 is a block diagram showing an example of a configuration of a receiving unit of a wireless device according to the present invention.

FIG. 8 is a block diagram showing a configuration of a transmission unit of a wireless device according to the present invention.

FIG. 9 is a block diagram showing a configuration of a transmission unit of a wireless device according to the present invention.

FIG. 10 is a block diagram showing a configuration of a receiving unit of a radio device on the partner side of the radio device according to the present invention.

FIG. 11 is a flowchart for explaining the embodiment of the present invention, in which (A) shows a procedure on the transmitting side and (B) shows a procedure on the receiving side.

FIG. 12 is a time chart for explaining an incoming call operation of a conventional wireless device with a vibration incoming call function.

FIG. 13 is a time chart for explaining an incoming operation of a wireless device having both a conventional vibration incoming call function and a beep sound ringing function.

FIG. 14 is a configuration diagram of a communication system using a personal wireless device that performs mutual communication via a repeater (relay device).

[Explanation of symbols]

20 Receiver circuit 30 signal detector 32 carrier detector 34 CTCSS / DCS detector 40 CPU 42 vibrator switch 44 vibrator 46 speaker switch 48 speakers 70 CPU 72 Call key 74 PTT switch 76 generator circuit 78 MSK switch 80 microphone switch 82 microphone 84 Call tone generation circuit

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Dean Tan Take Bin             Republic of Singapore 569110 Ammon               Kyo Street 63 Kenwood             Technologies Singapore In-house F term (reference) 5K011 DA17 DA26 FA07 HA07 JA03                       KA12                 5K067 AA33 BB02 DD23 EE02 EE10                       FF13 FF28

Claims (6)

[Claims] 1. A personal wireless device having a vibration incoming function for notifying a call by vibration and capable of mutually communicating with another wireless device directly or via a relay device, wherein the wireless signal is transmitted from the other wireless device. Vibrating means for starting vibration at the same time as an incoming voice signal and stopping the vibration when a predetermined time elapses or a predetermined key operation, and a receiving means for starting reception at the same time as an incoming voice signal transmitted from the other wireless device. A personal radio device characterized by being provided with. 2. A personal wireless device having a vibration incoming function for notifying a call by vibration and capable of mutually communicating with another wireless device directly or via a relay device, wherein the wireless signal is transmitted from the other wireless device. Vibration is started at the same time as the reception of the beep sound signal, and the vibration means for stopping the vibration by the lapse of a predetermined time or by a predetermined key operation, and the reception is started at the same time as the reception of the voice signal transmitted from the other wireless device. A personal wireless device comprising a receiving means. 3. A personal radio device having a vibration receiving function for notifying a call by vibration when a radio wave having a matching tone code is received, and capable of communicating with other radio devices directly or through a relay device. A vibration unit that starts vibrating at the same time when a tone signal whose tone code matches with a voice signal transmitted from the other wireless device is received and stops the vibration when a predetermined time elapses or a predetermined key operation is performed; A personal radio device comprising: a reception means for starting reception at the same time when a tone signal having the same tone code as the voice signal transmitted from the device is received. 4. A personal wireless device having a vibration incoming function of notifying a call by vibration when a radio wave having a matching tone code is received, and capable of mutually communicating with other wireless devices directly or via a relay device. A vibrating means that starts vibrating at the same time when a tone signal whose tone code matches with a beep sound signal transmitted from the other wireless device is received and stops vibrating when a predetermined time elapses or a predetermined key operation is performed, A personal radio device, comprising: a receiving unit that starts reception at the same time when a tone signal whose tone code matches the voice signal transmitted from another radio device is received. 5. The personal wireless device according to claim 3, wherein the tone code is set by selective call signaling. 6. The personal radio according to claim 5, wherein the selective call signaling is CTCSS, DCS,
A personal radio device comprising one of MSK and DTMF or a combination thereof.