GB2112236B - Digital device for clock signal synchronization - Google Patents

Digital device for clock signal synchronization

Info

Publication number
GB2112236B
GB2112236B GB08230977A GB8230977A GB2112236B GB 2112236 B GB2112236 B GB 2112236B GB 08230977 A GB08230977 A GB 08230977A GB 8230977 A GB8230977 A GB 8230977A GB 2112236 B GB2112236 B GB 2112236B
Authority
GB
United Kingdom
Prior art keywords
clock signal
digital device
signal synchronization
synchronization
digital
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
Application number
GB08230977A
Other versions
GB2112236A (en
Inventor
Gerard Jacques Marie Body
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.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Publication of GB2112236A publication Critical patent/GB2112236A/en
Application granted granted Critical
Publication of GB2112236B publication Critical patent/GB2112236B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/181—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a numerical count result being used for locking the loop, the counter counting during fixed time intervals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal
    • H03L7/148—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal said digital means comprising a counter or a divider
    • 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
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB08230977A 1981-11-03 1982-10-29 Digital device for clock signal synchronization Expired GB2112236B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8120582A FR2515902B1 (en) 1981-11-03 1981-11-03 DIGITAL CLOCK SYNCHRONIZATION DEVICE AND ITS APPLICATION TO CONNECTION NETWORKS

Publications (2)

Publication Number Publication Date
GB2112236A GB2112236A (en) 1983-07-13
GB2112236B true GB2112236B (en) 1985-06-19

Family

ID=9263648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08230977A Expired GB2112236B (en) 1981-11-03 1982-10-29 Digital device for clock signal synchronization

Country Status (3)

Country Link
FR (1) FR2515902B1 (en)
GB (1) GB2112236B (en)
IT (1) IT1153336B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401486A1 (en) * 1984-01-18 1985-07-25 Bayer Ag, 5090 Leverkusen METHOD AND MEANS FOR PREVENTING OIL STOCK BLOCKING BY EMULSION FORMATION BASED ON ASPHALT DEPOSITS
US5258720A (en) * 1984-03-02 1993-11-02 Itt Corporation Digital sample and hold phase detector
GB2267617B (en) * 1985-04-15 1994-04-27 Int Standard Electric Corp A digital sample and hold phase detector
GB2199708B (en) * 1986-11-01 1991-05-01 Storno As Digital automatic frequency control
US5228057A (en) * 1989-11-15 1993-07-13 Telefonaktiebolaget L M Ericsson Method of determining sampling time points
DE69129074T2 (en) 1990-06-29 1998-07-02 Analog Devices Inc Device for detecting phase errors
ES2048681B1 (en) * 1992-10-30 1995-01-01 Alcatel Standard Electrica DIGITAL FREQUENCY SYNTHESIZER.
US5861842A (en) * 1997-08-29 1999-01-19 Space Systems/Loral, Inc. Spacecraft disciplined reference oscillator
US7194056B2 (en) 2001-06-25 2007-03-20 Rambus Inc. Determining phase relationships using digital phase values
JP4356946B2 (en) * 2006-03-31 2009-11-04 日本電波工業株式会社 PLL device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940558A (en) * 1975-01-31 1976-02-24 Digital Communications Corporation Remote master/slave station clock
US3989931A (en) * 1975-05-19 1976-11-02 Rockwell International Corporation Pulse count generator for wide range digital phase detector
JPS5821967B2 (en) * 1977-11-07 1983-05-06 日本電気株式会社 phase synchronizer
JPS594900B2 (en) * 1979-09-03 1984-02-01 日本電気株式会社 clock recovery circuit

Also Published As

Publication number Publication date
GB2112236A (en) 1983-07-13
FR2515902B1 (en) 1985-12-06
IT8224023A0 (en) 1982-11-02
IT1153336B (en) 1987-01-14
FR2515902A1 (en) 1983-05-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee