DE3775493D1 - Traegerrueckgewinnungsschaltung, die gegen interburst-frequenzveraenderungen unempfindlich ist. - Google Patents

Traegerrueckgewinnungsschaltung, die gegen interburst-frequenzveraenderungen unempfindlich ist.

Info

Publication number
DE3775493D1
DE3775493D1 DE8787112157T DE3775493T DE3775493D1 DE 3775493 D1 DE3775493 D1 DE 3775493D1 DE 8787112157 T DE8787112157 T DE 8787112157T DE 3775493 T DE3775493 T DE 3775493T DE 3775493 D1 DE3775493 D1 DE 3775493D1
Authority
DE
Germany
Prior art keywords
sensitive
recovery circuit
frequency changes
carrier recovery
interburst
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8787112157T
Other languages
English (en)
Inventor
Susumu C O Nec Corporati Otani
Yoshio C O Nec Corpor Tanimoto
Shousei C O Nec Corpor Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 JP61196117A external-priority patent/JPS6351751A/ja
Priority claimed from JP61196118A external-priority patent/JPS6351752A/ja
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE3775493D1 publication Critical patent/DE3775493D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2277—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using remodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE8787112157T 1986-08-21 1987-08-21 Traegerrueckgewinnungsschaltung, die gegen interburst-frequenzveraenderungen unempfindlich ist. Expired - Fee Related DE3775493D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61196117A JPS6351751A (ja) 1986-08-21 1986-08-21 搬送波再生装置
JP61196118A JPS6351752A (ja) 1986-08-21 1986-08-21 搬送波再生装置

Publications (1)

Publication Number Publication Date
DE3775493D1 true DE3775493D1 (de) 1992-02-06

Family

ID=26509551

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787112157T Expired - Fee Related DE3775493D1 (de) 1986-08-21 1987-08-21 Traegerrueckgewinnungsschaltung, die gegen interburst-frequenzveraenderungen unempfindlich ist.

Country Status (5)

Country Link
US (1) US4780887A (de)
EP (1) EP0257584B1 (de)
AU (1) AU586782B2 (de)
CA (1) CA1274003A (de)
DE (1) DE3775493D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3886107T2 (de) * 1987-06-23 1994-05-26 Nec Corp Träger/Rausch-Detektor für digitale Übertragungssysteme.
JPH0716206B2 (ja) * 1988-08-05 1995-02-22 日本電気株式会社 信号検出器
US5140278A (en) * 1991-03-11 1992-08-18 California Institute Of Technology Phase-locked loop FM demodulator
FR2727813B1 (fr) * 1994-12-02 1997-01-10 Alcatel Telspace Dispositif de detection de presence ou d'absence d'une porteuse modulee en numerique, recepteur et procede correspondants
JP3304683B2 (ja) * 1995-05-02 2002-07-22 富士通株式会社 無線装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746994A (en) * 1971-03-11 1973-07-17 Datel Corp Apparatus for determining the validity of data received by data
US4246653A (en) * 1979-01-08 1981-01-20 Northrop Corporation In-phase quadrature demodulator for CPSK signals
DE3272570D1 (en) * 1981-08-10 1986-09-18 Fujitsu Ltd Carrier recovery circuit
FR2525055A1 (fr) * 1982-04-09 1983-10-14 Trt Telecom Radio Electr Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede
US4458356A (en) * 1982-07-02 1984-07-03 Bell Telephone Laboratories, Incorporated Carrier recovery circuit
US4516079A (en) * 1983-02-09 1985-05-07 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
US4626789A (en) * 1983-08-19 1986-12-02 Hitachi, Ltd. Demodulating circuit for data signal
NL8303819A (nl) * 1983-11-07 1985-06-03 Philips Nv Gesampelde costas lus.
JPS60145755A (ja) * 1984-01-09 1985-08-01 Clarion Co Ltd Ｐｓｋ復調器
JPS60203045A (ja) * 1984-03-28 1985-10-14 Nec Corp 位相同期検波復調器
US4591795A (en) * 1984-10-01 1986-05-27 United Technologies Corporation Signal conditioning circuit for L/R VDT sensors
KR900000464B1 (ko) * 1984-10-05 1990-01-30 가부시기가이샤 히다찌세이사꾸쇼 복조 회로
US4704582A (en) * 1986-10-07 1987-11-03 Motorola, Inc. Gated demodulator for shaped BPSK signals

Also Published As

Publication number Publication date
US4780887A (en) 1988-10-25
AU586782B2 (en) 1989-07-20
EP0257584B1 (de) 1991-12-27
EP0257584A1 (de) 1988-03-02
AU7730387A (en) 1988-02-25
CA1274003A (en) 1990-09-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee