ES454833A1 - Generador de senal de sincronizacion de frecuencia varia- ble. - Google Patents

Generador de senal de sincronizacion de frecuencia varia- ble.

Info

Publication number
ES454833A1
ES454833A1 ES454833A ES454833A ES454833A1 ES 454833 A1 ES454833 A1 ES 454833A1 ES 454833 A ES454833 A ES 454833A ES 454833 A ES454833 A ES 454833A ES 454833 A1 ES454833 A1 ES 454833A1
Authority
ES
Spain
Prior art keywords
phase detector
nonharmonic
tow mode
mode harmonic
data
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
ES454833A
Other languages
English (en)
Spanish (es)
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.)
Unisys Corp
Original Assignee
Sperry Rand 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
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of ES454833A1 publication Critical patent/ES454833A1/es
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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
ES454833A 1976-01-08 1977-01-05 Generador de senal de sincronizacion de frecuencia varia- ble. Expired ES454833A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64759476A 1976-01-08 1976-01-08

Publications (1)

Publication Number Publication Date
ES454833A1 true ES454833A1 (es) 1978-01-01

Family

ID=24597574

Family Applications (1)

Application Number Title Priority Date Filing Date
ES454833A Expired ES454833A1 (es) 1976-01-08 1977-01-05 Generador de senal de sincronizacion de frecuencia varia- ble.

Country Status (7)

Country Link
US (1) US4080576A (enExample)
JP (1) JPS5286029A (enExample)
CA (1) CA1057860A (enExample)
DE (1) DE2659468C2 (enExample)
ES (1) ES454833A1 (enExample)
FR (1) FR2337968A1 (enExample)
IT (1) IT1203054B (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195264A (en) * 1978-04-26 1980-03-25 Gte Sylvania Incorporated Noise detection circuit
US4229824A (en) * 1978-07-21 1980-10-21 Cubic Corporation Method and apparatus for synchronizing electrical signals
US4222009A (en) * 1978-11-02 1980-09-09 Sperry Corporation Phase lock loop preconditioning circuit
JPS5572225A (en) * 1978-11-27 1980-05-30 Nec Corp Improper timing detection circuit
US4200845A (en) * 1978-12-22 1980-04-29 Sperry Rand Corporation Phase comparator with dual phase detectors
FR2458181A1 (fr) * 1979-06-01 1980-12-26 Thomson Csf Dispositif de synchronisation d'un signal d'horloge et systemes de transmission de donnees synchrones comportant un tel dispositif
US4316150A (en) * 1980-01-09 1982-02-16 Tektronix, Inc. Phase locked loop including phase detector system controlled by enable pulses
US4420776A (en) * 1981-11-30 1983-12-13 International Business Machines PSK Modulation in AC bias data recording
US4475220A (en) * 1982-01-19 1984-10-02 Rca Corporation Symbol synchronizer for MPSK signals
US5004933A (en) * 1986-06-02 1991-04-02 Tektronix, Inc. Phase-selectable flip-flop
US4972161A (en) * 1989-06-28 1990-11-20 Digital Equipment Corporation Clock recovery for serial data communications system
US7588029B2 (en) * 2000-03-21 2009-09-15 Fisher & Paykel Healthcare Limited Humidified gases delivery apparatus
US7786763B1 (en) 2008-12-30 2010-08-31 Integrated Device Technology, Inc. Clock circuit with harmonic frequency detector
US8289821B1 (en) 2010-12-21 2012-10-16 Western Digital (Fremont), Llc Method and system for pulsing EAMR disk drives

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470475A (en) * 1966-09-28 1969-09-30 Nasa Automatic frequency discriminators and control for a phase-lock loop providing frequency preset capabilities
US3514698A (en) * 1967-07-17 1970-05-26 Thomas J Rey Device for generating or measuring preselected frequency signals
US3614635A (en) * 1969-12-31 1971-10-19 Ibm Variable frequency control system and data standardizer
US3755748A (en) * 1972-03-06 1973-08-28 Motorola Inc Digital phase shifter/synchronizer and method of shifting
US3870900A (en) * 1973-11-12 1975-03-11 Ibm Phase discriminator having unlimited capture range

Also Published As

Publication number Publication date
FR2337968B3 (enExample) 1979-09-07
IT1203054B (it) 1989-02-15
CA1057860A (en) 1979-07-03
US4080576A (en) 1978-03-21
DE2659468A1 (de) 1977-07-28
FR2337968A1 (fr) 1977-08-05
JPS5286029A (en) 1977-07-16
DE2659468C2 (de) 1984-05-03

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