KR0162239B1 - Trs device with double protocol - Google Patents

Abstract

The present invention relates to a frequency common communication terminal capable of operating a dual protocol as one terminal, and in particular, to handle a dual protocol that allows one terminal to be used in a frequency common communication system operated by different protocols. A frequency common communication terminal, comprising: an antenna (31) for transmitting and receiving an RF signal, an RF unit (32) for frequency modulation and demodulation of the received RF signal, and a demodulated reception signal connected to the RF unit (32) An audio unit and amplifiers 33 and 34 for filtering and amplifying the audio signal into a voice signal, a speaker 35 for outputting the voice signal amplified by the amplifier 34, and a display 37 for displaying status information of the terminal. ), A microphone 40 for inputting a voice signal, and a first or second protocol processor 4 for allowing the TRS terminal to be operated by the first or second protocol. 1, 42, a keypad 38 with a plurality of function keys, numeric keys, and a mode selection key 39 for selecting a first or second protocol, and according to the selection of the mode selection key 39 The microcomputer 36 controls the first or second protocol processors 41 and 42 and controls the operation of the peripheral devices 33, 36, 37, and 38.

Description

Frequency common communication (TRS) terminal capable of operating dual protocol

The present invention relates to a frequency common communication terminal capable of operating as a single terminal in a dual protocol, and in particular, to handle a dual protocol, which enables one terminal to be used in a frequency common communication system operated by different protocols. The present invention relates to a frequency common communication terminal.

Conventional TRS terminals had to use different terminals when the protocols were different.

For example, as shown in FIG. 1, the antenna 11, the RF (Radio FREQUENC) unit 12, the audio unit 13, the amplifier 14, the speaker and the microphone 15, 16), the terminal operated by the GOLDCOM protocol of LG Information Communication Co., Ltd. composed of the microcomputer 19, the LCD 18, the keypad 10, and the RCC (Radio Communication Chip, 17) is called first. When the RF signal received from the antenna 11 is frequency converted and demodulated in the RF unit 12, and filtered and amplified by an appropriate signal in the audio unit 13, the RCC 17 and the microcomputer 19 Is converted into data and voice signals under the control of the audio signal, and is amplified by the audio unit 13 through the amplifier 14, and the voice signal of the caller is output to the speaker 15, and the LCD (Liquid Crystal Display, 18) is provided to the caller. Data and status information of the TRS terminal are displayed. On the contrary, when calling the other party, the audio signal input through the microphone 16 in the reverse order as described above is controlled by the RCC 17 and the microcomputer 19 through the RF unit 12 through the audio unit 13 through the antenna ( 11).

In addition, the terminal of the EF Johnson company by the LTR logic shown in Figure 2 also operates like the terminal of the LG information communication shown in Figure 1, the difference between the RCC 17 of Figure 1 and the LTR logic of Figure 2 ( 27), the protocols of the two systems are different, so they are almost the same except that the data formats of the relay and the data are exchanged and the control of the communication programs and peripheral hardware handled within the microcomputers 19 and 29 are different. Consists of.

Since each TRS as described above can be used only in its own system and cannot be used in other systems, it is necessary to develop a terminal separately for each system system, and if two users want to use both TRS systems, they must carry two terminals. There is a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide a frequency common communication terminal capable of processing a dual protocol, which can be operated in two different TRS systems with one (1) terminal by improving the conventional problem as described above.

1 is a block diagram of a conventional GOLDCOM protocol TRS terminal,

2 is a block diagram of a conventional LTR protocol TRS terminal,

3 is a block diagram of a TRS terminal capable of operating a dual protocol according to the present invention.

* Explanation of symbols for the main parts of the drawings

10, 20, 38: keypad 11, 21, 31: antenna

12, 22, 32: RF unit 13, 23, 33: audio unit

14, 24, 34: amplifier 15, 25, 35: speaker

16, 26, 40: microphone 17: RCC

18, 28, 37: LCD 19, 29, 36: Micom

39: mode selection key 41: first protocol processor

42: second protocol handler

In order to achieve the above object, the present invention provides an antenna having a function of transmitting and receiving an RF signal, an RF unit having a modulation and demodulation function connected to the antenna, and a received signal under the control of a microcomputer connected to the RF unit. An audio unit having a function of filtering and separating a voice signal into a voice signal, mixing the input data and the voice signal, and applying the RF unit to the RF unit; and an amplifier for amplifying a demodulated and separated received voice signal connected to the audio unit And, a peripheral device of the TRS terminal, a speaker, a display, a microphone, and a function of processing TRS data connected to and transmitted from the audio unit under control of the microcomputer so that the TRS terminal can be operated by the first or second protocol. The first and second protocol processors, a plurality of function keys and numeric keys, and all selection keys for selecting the first or second protocol are added. The first and second protocol processors are selected according to the selection of the keypad and the mode selection key, and the audio unit is controlled to control the connection with each protocol processor for data processing, and an amplifier and a microphone for voice signal processing. The present invention provides a frequency common communication terminal capable of operating a dual protocol, characterized in that it comprises a microcomputer of a function of controlling a connection and controlling the operation of a peripheral device.

Hereinafter, a frequency common communication terminal capable of operating a dual protocol according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 3, the present invention relates to an antenna 31 having a function of transmitting and receiving an RF signal, and an RF having a function of modulating and demodulating data and voice signals connected to the antenna 31 and the audio unit 33. The data and voice signals of the signal received from the RF unit 32 under the control of the microcomputer 36 connected to the unit 32 and the RF unit 32 and separated, and the data is a protocol processor 41 or 42) and the voice signal is output to the amplifier 34, the data input from the protocol processor 41 or 42 and the voice signal input from the microphone 40 through the microcomputer 36 to mix the RF An audio unit 33 having a function applied to the unit 32, an amplifier 34 having a function of amplifying a demodulated and separated received voice signal connected to the audio unit 33 and outputting the received audio signal to the speaker 35; When outputting the audio signal amplified by the amplifier 34 at an audible frequency Is a speaker 35 of the function, the LCD 37 of the function to display the status information of the TRS terminal by receiving the control signal of the microcomputer 36, the microphone 40 of the function to input the voice, and the microcomputer ( A second protocol processor 42, which is an MSK modem, which processes and transmits and receives a GOLDCOM protocol as a control of 36), and a first protocol processor 41, which is LTR logic having a function of processing and transmitting and receiving an LTR protocol, as a control of a microcomputer 36. And selectively controlling the second protocol processor 42, which is the MSK modem, and the first protocol processor 41, which is the LTR logic, to connect the audio unit 33 to enable the dual protocol (GOLDCOM, LTR) processing. A keypad with a microcomputer 36 having a function of controlling operation of another peripheral device, a plurality of function keys and numeric keys, and a first protocol or second protocol mode selection key 39 for selecting the GOLDCOM and LTR protocols. Consists of 38 The.

The present invention configured as described above operates as follows.

When calling the other party using the TRS terminal according to the present invention, when power is supplied, the microcomputer 36 determines whether the mode selector 39 is set to the GOLDCOM protocol mode or the LTR protocol mode, and the micom ( 36) selects and operates the corresponding protocol processor, that is, the first protocol processor 41 or the second protocol processor 42 to process the data, receives the TRS data, and is connected to the audio unit 33 so as to connect with the counterpart. Performs communication. Then, when the user changes the protocol mode using the protocol mode selection key 39, the microcomputer 36 recognizes the changed mode and is the first protocol processor 41 or the second protocol processor corresponding to the same process as described above. The protocol processor 42 is operated to communicate with the other party as the selected protocol mode. The audio unit 33 amplifies a voice signal applied to the microphone 40 under the control of the microcomputer 36, and then applies the RF signal to the RF unit 32 to transmit the received signal. Is filtered and separated from the data and voice signals, and the data is processed by the protocol processor 41 or 42 which is selected and operated by the control of the microcomputer 36 and then applied to the microcomputer 36 again. 36) makes the entire TRS terminal operate normally, and the audio signal is applied to the amplifier 34, amplified, and then converted into a home frequency through the speaker 35. The display unit 37 functions to display the operation state and necessary information of the TRS terminal under the control of the microcomputer 36.

On the contrary, when called from the other party, the signal received through the antenna 31 is detected through the RF unit 32 and the audio unit 33, and the separated data is transferred to the microcomputer 36 as a protocol already designated by the keypad 39. The protocol processor 41 or 42 is selected for this selection, and the protocol processor processes data if it corresponds to the magnetic mode and notifies the microcomputer 36 when it is not in the magnetic mode. If the user changes the protocol mode using the mode selection key 39, the microcomputer 36 senses that the other mode selects and operates the protocol processor. For example, when currently operating in the LTR mode, when the other party calls the GOLDCOM protocol, the first protocol processor 41, which is the LTR modem, informs the microcomputer 36 that a signal other than the LTRF protocol, that is, the GOLDCOM protocol, is detected. The micom 36 displays a message on the display 37 indicating that it is not the currently selected protocol mode, the user uses the mode selection key 39 to switch the protocol mode, and the micom 36 select key 39. The TRS terminal operates in the GOLDCOM protocol mode and enables communication with the other party by selectively operating the second protocol processor 42, which is an MSK modem, by recognizing the protocol mode conversion command.

The present invention operating as described above can be used in two TRS systems operating in different protocols as one TRS terminal, so it is not necessary to carry two terminals and provides an effect that can be used in various service areas. .

Claims (2)

In the frequency common communication terminal, the audio unit 33, which is connected to the RF unit 32 and the microcomputer 36 and under the control of the microcomputer 36, filters, separates and outputs the received data and voice signals, 36 is connected to the status display unit 37 to display the operation state and necessary information of the terminal, the mode connected to the microcomputer 36 and a plurality of function keys and numeric keys and the first and second protocols can be selected A keypad 38 having a selection key 39, the status display unit 37 and a keypad 38 connected to control the operation, and selectively control the first and second protocol processors 41 and 42, A common frequency communication terminal capable of operating a dual protocol, characterized in that composed of a microcomputer (36) for controlling the operation connected to the audio unit 33 and other peripheral devices. The dual protocol operation of claim 1, further comprising first and second protocol processors connected to the microcomputer and the audio unit and controlled by the microcomputer to allow the terminal to be operated by different protocols. Frequency common communication terminal.