JPS60154727A - Personal radio equipment - Google Patents

Abstract

PURPOSE:To attain identification of a group number incoming at a location apart from a radio equipment by providing a high frequency transmission signal generating means and a switching means irradiating the signal to a personal radio equipment so as to irradiate a signal in response to a voice signal relating to the group number. CONSTITUTION:The 1st or the 2nd group number is coincident in a control channel, an idle talking channel is acquired. Then the talking is conducted by using the said talking channel. In depressing an automatic answering button 39, when the received group number and the 1st standby group number are coincident, a contact 40b of a voice signal switch 40 is closed and when the 2nd group number is coincident, a contact 40'b is closed. Thus, the 1st voice signal or the 2nd voice signal is transmitted and received by a slave side radio equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a personal radio device, and more particularly to a personal radio device that generates a high frequency transmission signal in response to a received audio signal.

As shown in FIG. 1, the personal wireless device has a CPU 1
, RAM 2, ROM 3, Buisjirei 7
and a PLL circuit 16. The internal radio has a control channel (hereinafter referred to as C channel, frequency: 903.0125 MHz) and a communication channel (hereinafter referred to as C channel).
Hereinafter, it will be referred to as S channel. The frequency is 903.0125M
It communicates over 79 channels in a frequency range of 25 kHz to 25 kHz.

To communicate, press the number buttons on the number board from 0 to 7. Data button 9
is operated to encode and store a 2- to 5-digit group number in the RAM 2 in advance. (Hereinafter, the encoded group number will be referred to as a group code, and the group number includes the group code.)
The calling party selects one group number. The called party can set two group numbers. The calling and called sides are set to the C channel using the power source. This state is called standby, and the standby operation program is executed from the start address of the standby operation program shown in FIG. 2 via two connectors. When a group number is selected on the calling side personal wireless device and 8 is pressed on the call button, a call request is detected by the standby operation program and a call operation program (not shown) is executed via the B connector. When an empty S channel is determined by executing the calling operation program, the acquisition operation program is started via the A connector. , when the PTT button 14 is pressed, a telephone call operation program (not shown) is executed via the D connector. By executing the call operation program, the channel code related to the S channel set via the data bus 4, the I10 buffer 6, the code generator 36, the modulator 23, and the selected group code shown in FIG. A control signal is radiated from the antenna 23. In addition, the transmission switch 32
is closed, and the microphone 30, audio circuit 31. Modulator 3
The audio signal circuit No. 3 is completed and audio signals can be transmitted.

The personal wireless device on the called side is in a standby state and set to the C channel. The control signal sent from the calling personal radio device via the C channel includes the channel code of the empty S channel and the specified group code, so if the standby group code and the receiving group code match, A. A capture operation program is executed via the connector. By executing the capture operation program, reception becomes possible on the S channel corresponding to the received channel code, and the incoming audio signal can be monitored by the speaker 29. If no audio signal is received for 30 seconds or more, the program returns to the standby operation program via the Z connector. After returning, it goes back to standby mode and waits for other incoming calls. In FIG. 1, reference numeral 5 indicates an address bus, an IOU address button, 11j, l, l call buttons, 12 a monitor button, 15 a reset button, 17 a programmable counter, and 18 a reference signal generator.

19 is a phase comparator, and 20 is a low/pass filter.

21 is a VCo, 22 is a transmission/reception switch, 24 is an RF unit, 25.34 is a mixer, and 27 is a detector.

28 is an audio circuit, 23 is a modulator, 35 is a high frequency amplifier, 37 is a code receiver, and 38 is an analog-to-digital converter.

・Gsonal wireless equipment may be installed and operated on a moving object such as a car. If the callee handler leaves the mobile unit in the standby state, he or she may not be able to hear the audio signal from the speaker 29. It also has the disadvantage that the group number cannot be identified.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a communication radio device that can generate and radiate a high-frequency transmission signal according to a received audio signal.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a personal wireless device according to the present invention will be described below with reference to the drawings.

FIG. 3 is a block diagram showing an embodiment of a personal wireless device according to the present invention.

Components that are the same in FIG. 3 and FIG. 1 are designated by the same reference numerals, so their explanation will be omitted.

In FIG. 3, 41 and 41' are first and second audio signal generators. The output sides of the first and second audio signal generators are connected to normally open contacts 40b and 40'b of the audio signal switch 40, and depending on the operation of the movable contact 40c, either one of the normally open contacts 40b or 40'b is connected. is closed, and the first audio signal or the second audio signal is output to the high frequency transmission signal amplifier 43 of the slave radio device. In the standby state, the standby operation program shown in FIG. 2 is executed from the first address and sets the reception channel to the 'C channel. When the control signal is received, the group code matching subroutine shown in FIG. 4, which is provided as an alternative between the standby group code and the receiving group code subroutine, is executed. If the group code m' is not received, it returns to the first address via the 2 connector. Receive group code m', leave details 39
When is pressed down, it is determined whether the group code m1 associated with the first standby group number and the received group code m' match, and if they match, the normally open contact 40b is closed. Received group code m
When it is determined that the group code m2 associated with the second standby group number matches the group code m2 associated with the second standby group number, the normally open contact 40'b is closed. After a match is determined, the channel code included in the transmitted signal is stored and execution is taken over to the capture operation program shown in FIG. 2 via the A connector. In the capture operation program, the S channel of the received channel code is set. The audio signal via the S channel is transmitted to the antenna 23. Mixer 25. Intermediate frequency circuit 26 detector 27. When the signal is input to the data bus 4 via the analog/digital converter 38, the audio signal switch 40 operates while the dead state is less than 30 seconds. Slave radio (
The operator, who is away from the observation local radio device while carrying a device (not shown), receives the first audio signal or the second audio signal through the speaker (not shown) of the slave radio device, and All numbers can be identified. Observation/Return to Gusonal radio equipment, 9
When the PTT button 14 is operated, it is possible to respond to an incoming call while the audio signal switch 40 is operating. Audio signal switch 4
When 0 is restored, the device returns to the standby state and cannot respond to incoming calls. In this case, the user designates the first or second standby group number corresponding to the first or second audio signal as the calling group number and presses the call button 8. If the standby group number of the other party's Zonal wireless device matches the group number that made the call earlier, communication is possible between the two parties.

In the above embodiment, the first. The first standby group number corresponds to the second standby group number.
．． Although the second audio signal (including a musical tone) is formed to be transmitted, the present invention is not limited thereto, and codes consisting of buzzer sounds having different frequencies and periods may be transmitted. Also,
Transmit the received audio signal directly - as in 1. But that's fine. In this case, observation is the first step. Using the second carrier wave, the first signal is sensed by the slave radio. The second carrier wave is identified and an identification rung etc. is ignited. By lighting the identification lamp, it becomes possible to determine which standby group number the received audio signal belongs to.

If the transmission/reception power between the observation/gusonal radio device and slave radio device is a weak radio wave of 15 μv 7'm or less at 100 m, and is not subject to the regulations of the Radio Law, the application procedure etc. can be omitted.

The personal wireless device according to the present invention has a configuration including a high-frequency transmission signal generation means for generating a high-frequency transmission signal in response to a voice signal received via a communication channel captured by a communication channel capture means. Therefore, the feature is that it generates a high frequency transmission signal corresponding to the received audio signal. Therefore, there is an effect that the incoming group number can be identified at a location remote from the Q personal radio device, which can emit musical tones, codes, etc. corresponding to the received group number to the slave radio device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional iR-sonal wireless device, FIG. 2 is a flowchart of the standby operation program and acquisition operation program of FIG. 1, and FIG.
A block diagram of a Sonal radio device. FIG. 4 is a flowchart of the group code matching no routine of FIG. In the figure, 1 is CFIU +' 2 is RO
M, 3 is RAM, 4 is data bus, 5 is address bus, 6 is I10, F, 7 is display,
8 is the number board, 9 is the data button, and 10 is the address button. 11 is a recall button, 12 is a monitor button, 14 is a PTT button,
15 is a reset button, 16 is a PLL circuit, 17 is a programmable pull counter, and 18 is a reference signal generator. 19 is a phase comparator, and 20 is a low-pass filter. 21 is a VCo, 22 is a transmitting/receiving switch, 23.44 is an antenna, 24 is an RF unit, 25, 34°42 is a mixer, 26 is an intermediate frequency circuit, 27 is a detector, 28.31
is an audio circuit, and 30 is a microphone. 32 is a transmission switch, 33 is a modulator, 35 is a high frequency amplifier, 36 is a code generator, and 37 is a code receiver. 38 is an analog-to-digital converter, and 39 is an absence notice. 40 is an audio signal switcher, 41 is a first audio signal generator, 4
1' is a second audio signal generator, 43 is a high frequency transmission signal amplifier for the slave radio device, Ko- is a numeric button, and Ks is a call button. Patent applicant Yaesu Musen Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 4th F! 1

Claims (1)

[Claims] 1. A standby means for waiting for a desired radio wave on a control channel;
An i4-Sonal radio device comprising: a communication channel capturing means for capturing a communication channel when a first or second group number for standby and a received group number match,
a high frequency transmission signal generation means for generating a high frequency transmission signal in response to the voice signal received via the telephone communication channel captured by the telephone communication channel capturing means; ◎ A personal wireless device characterized in that it is equipped with a switching means provided to radiate, and is configured to radiate a high frequency transmission signal corresponding to an audio signal related to a first or second group number.