FR2401566A1 - Procede de production d'une frequence d'horloge de reception - Google Patents

Procede de production d'une frequence d'horloge de reception

Info

Publication number
FR2401566A1
FR2401566A1 FR7824745A FR7824745A FR2401566A1 FR 2401566 A1 FR2401566 A1 FR 2401566A1 FR 7824745 A FR7824745 A FR 7824745A FR 7824745 A FR7824745 A FR 7824745A FR 2401566 A1 FR2401566 A1 FR 2401566A1
Authority
FR
France
Prior art keywords
clock frequency
reception clock
producing
demodulation
carrier
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.)
Granted
Application number
FR7824745A
Other languages
English (en)
Other versions
FR2401566B1 (fr
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2401566A1 publication Critical patent/FR2401566A1/fr
Application granted granted Critical
Publication of FR2401566B1 publication Critical patent/FR2401566B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Procédé de production d'une fréquence d'horloge de réception dans des récepteurs de signaux de données modulés, avec démodulation à l'aide d'une porteuse locale et d'une porteuse déphasée de 90 degrés . Des valeurs caractéristiques de la variation temporelle de la somme des carrés des produits de démodulation servent à fixer le critère de réglage de l'horloge de réception 6.
FR7824745A 1977-08-25 1978-08-25 Procede de production d'une frequence d'horloge de reception Granted FR2401566A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2738279A DE2738279C3 (de) 1977-08-25 1977-08-25 Verfahren und Anordnung zum Ableiten eines Empfangstaktes

Publications (2)

Publication Number Publication Date
FR2401566A1 true FR2401566A1 (fr) 1979-03-23
FR2401566B1 FR2401566B1 (fr) 1983-07-22

Family

ID=6017240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824745A Granted FR2401566A1 (fr) 1977-08-25 1978-08-25 Procede de production d'une frequence d'horloge de reception

Country Status (4)

Country Link
US (1) US4249252A (fr)
DE (1) DE2738279C3 (fr)
FR (1) FR2401566A1 (fr)
GB (1) GB2004719B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344179A (en) * 1980-11-07 1982-08-10 Motorola Inc. Clock synchronizer and data detector
US4472817A (en) * 1982-08-09 1984-09-18 Communications Satellite Corporation Non-PLL concurrent carrier clock synchronization
GB2355900B (en) * 1999-10-29 2004-03-17 Ericsson Telefon Ab L M Radio receiver
US8624602B2 (en) * 2005-09-27 2014-01-07 Ronald Quan Method and apparatus to measure differential phase and frequency modulation distortions for audio equipment
CN116865725A (zh) * 2023-01-09 2023-10-10 深圳曦华科技有限公司 对解调信号的信号处理方法及相关装置和存储介质和程序

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1178539A (en) * 1966-12-14 1970-01-21 Plessey Btr Ltd Improvements in Timing Arrangements for Electrical Signalling Systems
US3993956A (en) * 1975-11-03 1976-11-23 Motorola, Inc. Digital detection system for differential phase shift keyed signals
US4015083A (en) * 1975-08-25 1977-03-29 Bell Telephone Laboratories, Incorporated Timing recovery circuit for digital data

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152264A (fr) * 1974-09-11 1976-05-08 Sharp Kk
US4109102A (en) * 1975-12-02 1978-08-22 Nippon Electric Company, Ltd. Phase synchronizing circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1178539A (en) * 1966-12-14 1970-01-21 Plessey Btr Ltd Improvements in Timing Arrangements for Electrical Signalling Systems
US4015083A (en) * 1975-08-25 1977-03-29 Bell Telephone Laboratories, Incorporated Timing recovery circuit for digital data
US3993956A (en) * 1975-11-03 1976-11-23 Motorola, Inc. Digital detection system for differential phase shift keyed signals

Also Published As

Publication number Publication date
DE2738279C3 (de) 1980-03-13
FR2401566B1 (fr) 1983-07-22
DE2738279B2 (de) 1979-06-28
US4249252A (en) 1981-02-03
DE2738279A1 (de) 1979-03-01
GB2004719A (en) 1979-04-04
GB2004719B (en) 1982-03-24

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse