KR200309723Y1 - Wireless Ear MIC for two way radios - Google Patents

Abstract

The present invention relates to a wireless ear microphone for mounting a radio, in particular, the push button S / W connected to the radio to control the radio signal and the audible signal controlled from the Push Button S / W is compressed to a high frequency band It modulates and transmits, and the base unit demodulates and extends the compressed high frequency band signal input from the handset to the audible frequency band, and the high frequency band signal input from the base is demodulated and extended to the audible frequency band. And a handset for compressing the voice signal input through the microphone, modulating the high frequency band, and transmitting the voice signal to the base unit. This invention has the effect that the user can use both hands freely when using the radio.

Description

Wireless Ear Mic for Walkie Talkie {Wireless Ear MIC for two way radios}

The present invention relates to a wireless ear microphone for mounting a radio, and in more detail, it can be connected to an earphone jack of a radio to provide a communication environment so that a user can make a call even when the user does not use the radio directly. A radio ear microphone for mounting a radio that can be used.

When talking on the radio using the radio while working, the radio user must press the Talk button when talking to the other party. In other words, when using a radio there is a hassle that one of the hands is not free. In addition, even when using a wired ear microphone, it is easily broken when the cable is used by pulling or twisting it. In this case, too, you have to press the switch with one hand to talk. There is this.

In order to solve this problem, conventionally, a wired ear microphone was connected to a radio. Since the user and the radio are connected by wire, the appearance is not good, and there was a problem of limiting the activity of the user. In addition, instead of pressing a switch, the VOX (Voice activated Transmission) function is used when using a dedicated external ear microphone. The VOX function is a system that controls the Talk button by voice, and cannot be used in a noisy environment. When the user talks loudly, the voice is transmitted through a microphone.

The purpose of the present invention for solving the problems of the prior art as described above, the push button S / in the upper part of the base to connect the base part to the earphone jack of the walkie-talkie and wirelessly connect the base part and the handset and mounted on the waist The built-in W allows users to use both hands freely by transmitting by pressing the push button S / W built into the base with their elbows.

1 is a block diagram illustrating an internal configuration of a radio ear microphone for mounting a radio according to an embodiment of the present invention.

Explanation of symbols for main parts of the drawings

100: Push Button S / W 110: Radio 120: Base

121,133: Compression / extension 122,132: RF module

123, 137: Micro Process Unit (MPU) 124, 138: EEPROM

125, 131: Antenna 130: Handset

134: amplifier 135: speaker

136: microphone

2 is a diagram illustrating a scene of transmitting by pressing the push button S / W built in the base portion to the elbow as an example of the use of the present invention.

100: Push Button S / W 120: Base

Figure 3 is a schematic diagram of the Push Button S / W portion to the base connected to the radio.

100: Push Button S / W 120: Base

Wireless ear microphone for mounting a radio according to the present invention for achieving the above object, the push button S / W and a push button S / W for controlling the radio signal is connected to the radio to compress the audible signal input And a base unit for demodulating and transmitting the high frequency band, demodulating and extending the compressed high frequency signal inputted from the handset to an audible frequency band and transmitting the signal to the radio unit;

The demodulated signal of the high frequency band transmitted from the base unit is demodulated and amplified into an audible frequency band and output to the outside through the speaker, and the voice signal input through the microphone is compressed and modulated into a high frequency band and then sent to the base unit. And the handset.

Preferably the base portion,

A compression / extension unit for compressing an audible signal input from the radio and extending the compressed signal transmitted from the handset;

The RF module modulates an audible signal compressed by the compression / extension unit into a high frequency band, sends the signal to the handset, demodulates a signal of the compressed high frequency band input from the handset into an audible frequency band, and delivers the signal to the compression / extension unit. , And

And a micro process unit configured to receive a state signal from the compression / extension unit and the RF module and set a channel between the base unit and the handset, and output a control signal to the compression / extension unit and the RF module. It is characterized by.

More preferably the handset is

A microphone for receiving a user's voice signal,

A compression / extension unit for compressing the voice signal received from the microphone and extending the compressed audio signal transmitted from the base;

A speaker for transmitting an audible signal extended by the compression / extension unit to the outside;

The RF module modulates the voice signal compressed by the compression / decompression unit into a high frequency band, sends the signal to the base unit, demodulates the signal of the compressed frequency band inputted from the base unit into an audible frequency band, and delivers the signal to the compression / extension unit. , And

Receiving a status signal from the compression / extension unit and the RF module to set up a channel between the base unit and the handset, and including a microprocess unit for outputting a control signal to the compression / extension unit and the RF module. It features.

Hereinafter, referring to the accompanying drawings, a radio ear microphone for mounting a radio according to an embodiment of the present invention will be described in more detail.

1 is a block diagram illustrating a wireless ear microphone for mounting a radio according to an embodiment of the present invention.

This is the base unit 120 having a connection terminal inserted into the earphone jack of the radio 110 and the base unit 120 by wirelessly communicating the voice signal received by the transceiver 110 through the base unit 120 It is provided with a handset 130 that receives the transmission to the user and transmits the user's voice signal to the base unit 120 to be transmitted to the radio (110).

The base unit 120 is a compression / extension unit 121 for compressing or extending an audible signal such as a voice signal or a dialing signal transmitted from the radio 110 or the handset 130, and modulate the home signal to a high frequency band or RF module 122 for demodulating the signals of the high frequency band according to the audible frequency, and a micro process unit for receiving a status signal from the compression / extension unit 121 and the RF module 122 and outputting control signals for necessary control (Micro Process Unit, MPU: 123), the EEPROM (124) for storing the frequency information corresponding to the selected channel to the MPU (123), and the signal of the high frequency band modulated by the RF module (122) handset 130 Or an antenna 135 for receiving a signal of a high frequency band from the handset 130 and transmitting it to the RF module 122.

In addition, the handset 130 receives the signal of the high frequency band transmitted through the antenna 125 of the base unit 120 or transmits the signal of the high frequency band to the base unit 120 and the antenna ( RF module 132 for demodulating a signal of a high frequency band received through the 131 to an audible frequency band or for modulating a signal to be transmitted to the base unit 120 to a high frequency band and transmitting it to the antenna 131, and a voice signal or dialing A compression / extension unit 133 for compressing or decompressing an audible signal such as a signal, an amplification unit 134 for amplifying an audible signal extended from the compression / extension unit 133, and transmitting the amplified audible signal to the outside. Speaker 135 and the microphone 136 and the RF module 132 and the compression / expansion unit 133 to receive the user's voice and transmits to the compression / extension 133 and receives the status signal for necessary control Micro Process Unit for Outputting Control Signals t, MPU: 137, and an EEPROM 138 that stores frequency information corresponding to the selected channel and transmits the frequency information to the MPU 137.

The radio ear microphone for radio mounting according to the present invention configured as described above operates as follows.

First, when the radio 110 is received, the incoming signal is output to the connection terminal (not shown) of the wireless ear microphone base unit 120 through the earphone jack. This incoming signal is controlled by the Push Button S / W 100 and the controlled signal is input to the compression / extension 121 and compressed, and at the same time, the compression / extension 121 receives a signal on the MPU 123. Outputs an RX signal to indicate that

Then, the MPU 123 performs a channel setting process for wireless communication between the base unit 120 and the handset 130. First, the MPU 123 determines a connection channel and retrieves a frequency corresponding to the connection channel from the EEPROM 124, and then phase-fixes a loop so that the RF module 122 modulates and demodulates an audible signal at the corresponding frequency. Lock Loop) outputs a TX signal to the RF module 122 to control and receive an audible signal. In addition, the channel information is transmitted to the handset 130.

Looking at the process of transmitting this connection channel information, since the pilot channel (Pilot Channel) is initially established between the handset 130 and the base unit 120, the RF module of the handset and the base unit can transmit and receive the same frequency. To be set. Generally, channel 0 is used as a pilot channel, and channel 1 is used when channel 0 is in use.

The connection channel information transmitted from the base unit 120 is recognized by the MPU 137 of the handset 130, and the MPU 137 of the handset 130 has a frequency for each connection channel stored in the EEPROM 138. Using the information to recognize the connection frequency, the RF module 132 of the handset 130 to control the phase lock loop (Phase Lock Loop) so that it can demodulate and demodulate the audible signal at the corresponding frequency to receive the audible signal The TX signal is output to the RF module 132. When the channel is set and connected in this way, the base unit and the handset modulate and demodulate the home signal at the same radio frequency to enable communication of the audible signal.

On the other hand, when the channel is set through the above process, the incoming signal or dialing signal compressed in the compression / extension unit 121, and the voice signal of the other party's call is transmitted to the RF module 122 and modulated according to the set high frequency, The modulated signal is transmitted through the antenna 125.

The high frequency signal transmitted through the antenna 125 of the base unit 120 is input to the antenna 131 of the handset 130 and transmitted to the RF module 132. The RF module 132 demodulates a high frequency signal into an audible frequency band and transmits it to the compression / extension unit 133. The compression / extension unit 133 extends the compressed signal to a speaker through the amplification unit 134. Transmission to the 135 to be transmitted to the outside through the speaker 135.

On the other hand, the voice signal for the user's call is transmitted to the compression / extension 133 through the microphone 136 is compressed. The compression / decompression unit 133 outputs an RX signal informing the MPU 137 that the user's voice signal is input, and the MPU 137 transmits the RF module 132 to operate when the RX signal is received. Output a control signal. The voice signal compressed by the compression / decompression unit 133 is modulated to the high frequency band by the RF module 132 and then transmitted to the base unit 120 through the antenna 131.

The antenna 125 of the base unit 120 receives a signal and transmits the signal to the RF module 122. The RF module 122 demodulates the input high frequency band signal into an audible frequency band, and compresses / decompresses the signal. Forward to 121. The compression / extension 121 extends the compressed signal and transmits the compressed signal to the transceiver 110.

2 is a diagram illustrating a scene of pressing the push button S / W (100) built into the base portion 120 with the elbow as an example of the use of the present invention. When the user wants to talk, the user can freely use both hands by pressing the push button S / W 100 embedded in the base 120 with the elbow.

According to the present invention as described above, when the radio user wants to talk by pressing the push button S / W built in the base with the elbow has the effect that you can use both hands freely.

Claims (4)

A base unit connected to a radio and compressing an audible signal input from the radio and then modulating the radio signal into a high frequency band and demodulating and extending the compressed high frequency signal input from the handset into an audible frequency band and transmitting the signal to the radio Wow; The demodulated signal of the compressed high frequency band transmitted from the base unit is amplified and decompressed into an audible frequency band and sent out through the speaker, and the voice signal input through the microphone is compressed and modulated into a high frequency band and then sent to the base unit. Wireless ear microphone for mounting a radio, characterized in that provided with the handset. The method of claim 1, The base portion, A compression / extension unit for compressing an audible signal input from the radio and extending the compressed signal transmitted from the handset; The RF module modulates an audible signal compressed by the compression / extension unit into a high frequency band, sends the signal to the handset, demodulates a signal of the compressed high frequency band input from the handset into an audible frequency band, and delivers the signal to the compression / extension unit. , And Receiving a status signal from the compression / extension unit and the RF module, and setting a channel between the base unit and the handset, and including a microprocess unit for outputting a control signal to the compression / extension unit and the RF module. Wireless ear microphone for radio mounting. The method according to claim 1 or 2, The handset, A microphone for receiving a user's voice signal, A compression / extension unit for compressing the voice signal received from the microphone and extending the compressed audio signal transmitted from the base; A speaker for transmitting an audible signal extended by the compression / extension unit to the outside; An RF module which modulates the voice signal compressed by the compression / extension unit into a high frequency band and sends it to the base unit, demodulates the signal of the compressed high frequency band input from the base unit into an audible frequency band, and transmits it to the compression / extension unit; And Receiving a status signal from the compression / extension unit and the RF module, and setting a channel between the base unit and the handset, and including a microprocess unit for outputting a control signal to the compression / extension unit and the RF module. Wireless ear microphone for radio mounting. The method according to claim 1, 2 or 3, Wireless ear microphone for mounting a radio, characterized in that the user can use both hands freely by the built-in Push S / W on the base portion of the base portion.