KR910021060A - 통신 방식 - Google Patents

통신 방식 Download PDF

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Publication number
KR910021060A
KR910021060A KR1019910007817A KR910007817A KR910021060A KR 910021060 A KR910021060 A KR 910021060A KR 1019910007817 A KR1019910007817 A KR 1019910007817A KR 910007817 A KR910007817 A KR 910007817A KR 910021060 A KR910021060 A KR 910021060A
Authority
KR
South Korea
Prior art keywords
frequency
transmission
carrier frequency
signal
reception
Prior art date
Application number
KR1019910007817A
Other languages
English (en)
Other versions
KR100210537B1 (ko
Inventor
미쯔히로 스즈끼
다꾸시 구니히로
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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
Application filed by 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Publication of KR910021060A publication Critical patent/KR910021060A/ko
Application granted granted Critical
Publication of KR100210537B1 publication Critical patent/KR100210537B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits

Abstract

내용 없음

Description

통신 방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예를 나타내는 블록도.
제2도는 변조 회로를 나타내는 블록선도.
제3도는 그 변조 회로의 코우드화의 설명도.

Claims (1)

  1. 기준 수신 반송 주파수 및 기준 송신 반송 주파수를 달리하는 통신 방식에 있어서, 수신 신호의 현수신 반송 주파수의 상기 기준 수신 반송 주파수에 대한 오프세트 주파수를 검출하여, 그 검출된 오프세트 주파수의 주파수 신호를 상기 기준 송신 반송 주파수의 송신 신호에 곱셈하여, 현송신 반송 주파수의 송신 신호를 얻어 그 현송신 방송 주파수의 송신 신호를 송신하는 것을 특징으로 하는 통신 방식.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910007817A 1990-05-17 1991-05-15 통신방식 KR100210537B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP127585 1990-05-17
JP2127585A JPH0422225A (ja) 1990-05-17 1990-05-17 通信方式

Publications (2)

Publication Number Publication Date
KR910021060A true KR910021060A (ko) 1991-12-20
KR100210537B1 KR100210537B1 (ko) 1999-07-15

Family

ID=14963708

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910007817A KR100210537B1 (ko) 1990-05-17 1991-05-15 통신방식

Country Status (8)

Country Link
US (1) US5261120A (ko)
EP (1) EP0457542B1 (ko)
JP (1) JPH0422225A (ko)
KR (1) KR100210537B1 (ko)
AU (1) AU644649B2 (ko)
CA (1) CA2042563C (ko)
DE (1) DE69127654T2 (ko)
MY (1) MY107588A (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697700B1 (fr) * 1992-11-03 1994-12-16 Alcatel Radiotelephone Dispositif de correction d'un décalage de fréquence dû à l'effet Doppler dans un système de transmission.
KR100207594B1 (ko) * 1993-03-30 1999-07-15 윤종용 자동부호화 4분 위상천이 변조방법 및 장치
FR2757339B1 (fr) * 1996-12-12 1999-01-08 Alsthom Cge Alcatel Procede de correction de l'effet doppler dans un reseau de radiocommunications avec les mobiles
JPH11136180A (ja) 1997-10-31 1999-05-21 Sony Corp データ通信方法、送信装置及びセルラー無線通信システム
US6470005B1 (en) * 1998-12-29 2002-10-22 Thomson Licensing Sa Transceiver prerotation based on carrier offset
EP1356248B1 (en) 2000-12-28 2009-02-11 Showa Denko K.K. Layered heat exchangers
US6920916B2 (en) 2000-12-28 2005-07-26 Showa Denko K.K. Layered heat exchangers

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB830021A (en) * 1957-04-02 1960-03-09 Standard Telephones Cables Ltd Improvements in or relating to radio communication systems
US3940695A (en) * 1974-11-18 1976-02-24 Rca Corporation Doppler correction of transmission frequencies
JPS5197316A (en) * 1975-02-24 1976-08-26 Eiseitsushinniokeru shuhasudokihoshiki
US4430756A (en) * 1982-02-22 1984-02-07 General Electric Company Oscillator control circuit
US4489413A (en) * 1982-07-19 1984-12-18 M/A-Com Dcc, Inc. Apparatus for controlling the receive and transmit frequency of a transceiver
AU571302B2 (en) * 1983-12-22 1988-04-14 Griffith University A phase shift keying and phase modulation transmission system
US4901368A (en) * 1987-10-19 1990-02-13 American Telephone And Telegraph Company Frequency translation correction scheme for satellite communication system
EP0322766B1 (en) * 1987-12-24 1994-09-07 Nec Corporation Carrier recovery circuit for offset QPSK demodulators
CA1288878C (en) * 1988-08-15 1991-09-10 John D. Mcnicol Timing and carrier recovery in tdma without preamable sequence
GB2232852B (en) * 1989-05-31 1993-10-27 Technophone Ltd Offset correction
JPH07105822B2 (ja) * 1989-08-10 1995-11-13 三菱電機株式会社 自動周波数制御装置
WO1991005410A1 (en) * 1989-09-27 1991-04-18 Motorola, Inc. Method and apparatus for adjusting the frequency of a two-way radio
US5113416A (en) * 1990-10-26 1992-05-12 Ericsson Ge Mobile Communications Holding, Inc. Digital radio frequency compensation

Also Published As

Publication number Publication date
AU7647391A (en) 1991-11-21
EP0457542B1 (en) 1997-09-17
KR100210537B1 (ko) 1999-07-15
AU644649B2 (en) 1993-12-16
DE69127654D1 (de) 1997-10-23
DE69127654T2 (de) 1998-02-12
CA2042563C (en) 2002-07-23
EP0457542A3 (en) 1993-03-03
US5261120A (en) 1993-11-09
CA2042563A1 (en) 1991-11-18
MY107588A (en) 1996-04-30
EP0457542A2 (en) 1991-11-21
JPH0422225A (ja) 1992-01-27

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