KR890012460A - Simultaneous 2-Way FM Transceiver - Google Patents

Simultaneous 2-Way FM Transceiver Download PDF

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Publication number
KR890012460A
KR890012460A KR1019880011716A KR880011716A KR890012460A KR 890012460 A KR890012460 A KR 890012460A KR 1019880011716 A KR1019880011716 A KR 1019880011716A KR 880011716 A KR880011716 A KR 880011716A KR 890012460 A KR890012460 A KR 890012460A
Authority
KR
South Korea
Prior art keywords
frequency
signal
modulated
transceiver
simultaneous
Prior art date
Application number
KR1019880011716A
Other languages
Korean (ko)
Other versions
KR910005652B1 (en
Inventor
아키유키 요시사토
Original Assignee
가다오까 가츠다로오
아루프스 덴기 가부시끼 가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP63013766A external-priority patent/JPH01190034A/en
Priority claimed from JP63099494A external-priority patent/JPH01270418A/en
Application filed by 가다오까 가츠다로오, 아루프스 덴기 가부시끼 가이샤 filed Critical 가다오까 가츠다로오
Publication of KR890012460A publication Critical patent/KR890012460A/en
Application granted granted Critical
Publication of KR910005652B1 publication Critical patent/KR910005652B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

내용 없음.No content.

Description

동시 쌍방향 FM 송수신기Simultaneous 2-Way FM Transceiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는, 본 발명의 1실시예의 구성을 나타낸 불럭도.1 is a block diagram showing a configuration of one embodiment of the present invention.

Claims (2)

송신해야할 저주파 신호로서 주파수변조된 제1의 피변조파를 출력하는 제1의 PLL 신서사이저(PLL2)와, 상기 저주파 신호로서 주파수 변조된 제2의 피변조파를 출력하는 제2의 PLL 신서사이저(PLL3)와, 상기 제1의 피변조파의 일부와 고주파수신 신호와를 입력하여 제1의 중간주파신호를 출력하는 제1혼합기(4)와, 상기 제1의 중간주파 신호와 상기 제2의 피변조파와를 입력하여 제2의 중간조파 신호를 출력하는 제2혼합기(6)와를 구별하여, 상기 제1의 피변조파를 송신하고, 상기 제2의 중간주파 신호로부터 저주파 수신신호를 복조하는 것을 특징으로 하는 동시 쌍방향 FM 송수신기.A first PLL synthesizer PLL 2 for outputting a first modulated wave frequency modulated as a low frequency signal to be transmitted, and a second PLL synthesizer PLL 3 for outputting a second modulated wave frequency modulated as the low frequency signal ), A first mixer 4 for inputting a part of the first modulated wave and a high frequency reception signal and outputting a first intermediate frequency signal, and the first intermediate frequency signal and the second modulated signal. Distinguishing from the second mixer 6 which inputs a wave and outputs a second intermediate frequency signal, transmitting the first modulated wave and demodulating a low frequency received signal from the second intermediate frequency signal. Simultaneous two-way FM transceiver. 제 1 항에 있어서, 상기 제1의 피변조파의 방송주파수는, 제어채널에서 대기하여 받을시에 있어서, 제어 채널에 할당된 송신주파수와는 다른 주파수로 제어되는 것을 특징으로 하는 동시 쌍방향 FM 송수신기.The simultaneous bi-directional FM transceiver of claim 1, wherein the broadcast frequency of the first modulated wave is controlled at a frequency different from a transmission frequency assigned to the control channel when waiting for the control channel. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019880011716A 1988-01-25 1988-09-10 Simultaneous bidirectional fm transmitter-receiver KR910005652B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP63-13766 1988-01-25
JP63013766A JPH01190034A (en) 1988-01-25 1988-01-25 Simultaneous two-way fm transmitter-receiver
JP63-99494 1988-04-22
JP63099494A JPH01270418A (en) 1988-04-22 1988-04-22 Simultaneous bidirectional fm transmitter-receiver

Publications (2)

Publication Number Publication Date
KR890012460A true KR890012460A (en) 1989-08-26
KR910005652B1 KR910005652B1 (en) 1991-08-01

Family

ID=26349608

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880011716A KR910005652B1 (en) 1988-01-25 1988-09-10 Simultaneous bidirectional fm transmitter-receiver

Country Status (1)

Country Link
KR (1) KR910005652B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960020194A (en) * 1994-11-21 1996-06-17 오오가 노리오 Transmitter and two way radio device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960020194A (en) * 1994-11-21 1996-06-17 오오가 노리오 Transmitter and two way radio device

Also Published As

Publication number Publication date
KR910005652B1 (en) 1991-08-01

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