FR2513460B1 - Circuit et procede d'extraction d'horloge pour recepteur de modem - Google Patents

Circuit et procede d'extraction d'horloge pour recepteur de modem

Info

Publication number
FR2513460B1
FR2513460B1 FR8215794A FR8215794A FR2513460B1 FR 2513460 B1 FR2513460 B1 FR 2513460B1 FR 8215794 A FR8215794 A FR 8215794A FR 8215794 A FR8215794 A FR 8215794A FR 2513460 B1 FR2513460 B1 FR 2513460B1
Authority
FR
France
Prior art keywords
extraction circuit
clock extraction
modem receiver
modem
receiver
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
FR8215794A
Other languages
English (en)
Other versions
FR2513460A1 (fr
Inventor
Philip Frederick Kromer Iii
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.)
Racal Data Communications Inc
Original Assignee
Racal Data Communications Inc
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 Racal Data Communications Inc filed Critical Racal Data Communications Inc
Publication of FR2513460A1 publication Critical patent/FR2513460A1/fr
Application granted granted Critical
Publication of FR2513460B1 publication Critical patent/FR2513460B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • 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)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR8215794A 1981-09-21 1982-09-20 Circuit et procede d'extraction d'horloge pour recepteur de modem Expired FR2513460B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/304,044 US4455665A (en) 1981-09-21 1981-09-21 Data modem clock extraction circuit

Publications (2)

Publication Number Publication Date
FR2513460A1 FR2513460A1 (fr) 1983-03-25
FR2513460B1 true FR2513460B1 (fr) 1986-04-11

Family

ID=23174801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8215794A Expired FR2513460B1 (fr) 1981-09-21 1982-09-20 Circuit et procede d'extraction d'horloge pour recepteur de modem

Country Status (13)

Country Link
US (1) US4455665A (fr)
JP (1) JPS58501491A (fr)
KR (1) KR880001166B1 (fr)
AR (1) AR230135A1 (fr)
AU (1) AU8958482A (fr)
BE (1) BE894459A (fr)
CA (1) CA1196992A (fr)
DE (1) DE3249021T1 (fr)
FR (1) FR2513460B1 (fr)
GB (1) GB2122850B (fr)
IT (1) IT1212667B (fr)
NZ (1) NZ201807A (fr)
WO (1) WO1983001165A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701874A (en) * 1983-04-06 1987-10-20 Nec Corporation Digital signal processing apparatus
US4797898A (en) * 1986-11-21 1989-01-10 Racal Data Communications Inc. Method and apparatus for equalization of data transmission system
US4862484A (en) * 1988-01-21 1989-08-29 Harris Corporation Apparatus for clock recovery from digital data
US4853944A (en) * 1988-03-10 1989-08-01 Allied-Signal Inc. Digital AM/FM/φM demodulator
CA1311033C (fr) * 1988-03-19 1992-12-01 Shinji Ohta Circuit pour extraire un signal d'horloge precis d'un signal recu
US4943974A (en) * 1988-10-21 1990-07-24 Geostar Corporation Detection of burst signal transmissions
US5031173A (en) * 1989-08-15 1991-07-09 Unisys Corporation Decoder for added asynchronous bit sequences
US5793821A (en) * 1995-06-07 1998-08-11 3Com Corporation Timing Recovery using group delay compensation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL136056C (fr) * 1960-08-15
US3393308A (en) * 1963-07-12 1968-07-16 Bendix Corp Electronic function generator
US3524023A (en) * 1966-07-14 1970-08-11 Milgo Electronic Corp Band limited telephone line data communication system
FR1550432A (fr) * 1967-11-08 1968-12-20
JPS5117846B1 (fr) * 1970-05-23 1976-06-05
US3921075A (en) * 1973-01-29 1975-11-18 Adar Inc Radio teletype detector circuit
US4070588A (en) * 1975-11-10 1978-01-24 Northern Electric Company Limited Limiter circuit for timing recovery in a high speed digital repeater
US4203070A (en) * 1978-08-08 1980-05-13 The Charles Stark Draper Laboratory, Inc. Pseudo-random-number code detection and tracking system
US4190896A (en) * 1978-09-05 1980-02-26 Bell Telephone Laboratories, Incorporated Circuits having substantially parabolic output versus linear input characteristics
DE2854039C2 (de) * 1978-12-12 1984-07-12 Heinrich-Hertz-Institut für Nachrichtentechnik Berlin GmbH, 1000 Berlin Verfahren und Phasenregelkreis zum Synchronisieren eines Ausgangssignals mit einem Eingangssignal unregelmäßiger und/oder stark ausgedünnter Flankendichte
AU6193080A (en) * 1979-09-19 1981-03-26 Plessey Overseas Ltd. Timing recovery for modems
US4344176A (en) * 1980-04-03 1982-08-10 Codex Corporation Time recovery circuitry in a modem receiver

Also Published As

Publication number Publication date
JPS58501491A (ja) 1983-09-01
DE3249021T1 (de) 1983-11-17
GB2122850A (en) 1984-01-18
CA1196992A (fr) 1985-11-19
KR880001166B1 (ko) 1988-07-02
JPH0434856B2 (fr) 1992-06-09
WO1983001165A1 (fr) 1983-03-31
IT1212667B (it) 1989-11-30
AU8958482A (en) 1983-04-08
NZ201807A (en) 1985-12-13
AR230135A1 (es) 1984-02-29
GB8312019D0 (en) 1983-06-08
DE3249021C2 (fr) 1991-04-25
FR2513460A1 (fr) 1983-03-25
GB2122850B (en) 1985-07-31
US4455665A (en) 1984-06-19
BE894459A (fr) 1983-01-17
KR840001724A (ko) 1984-05-16
IT8268116A0 (it) 1982-09-20

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Legal Events

Date Code Title Description
ST Notification of lapse