CA1057860A - Two mode harmonic and nonharmonic phase detector - Google Patents

Two mode harmonic and nonharmonic phase detector

Info

Publication number
CA1057860A
CA1057860A CA261,762A CA261762A CA1057860A CA 1057860 A CA1057860 A CA 1057860A CA 261762 A CA261762 A CA 261762A CA 1057860 A CA1057860 A CA 1057860A
Authority
CA
Canada
Prior art keywords
signal
data
clocking
phase
frequency
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
CA261,762A
Other languages
English (en)
French (fr)
Inventor
Robert L. Cloke
W. Donald Huber
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
Application granted granted Critical
Publication of CA1057860A publication Critical patent/CA1057860A/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
    • H03L7/08—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)
CA261,762A 1976-01-08 1976-09-22 Two mode harmonic and nonharmonic phase detector Expired CA1057860A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1057860A true CA1057860A (en) 1979-07-03

Family

ID=24597574

Family Applications (1)

Application Number Title Priority Date Filing Date
CA261,762A Expired CA1057860A (en) 1976-01-08 1976-09-22 Two mode harmonic and nonharmonic phase detector

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
US4080576A (en) 1978-03-21
DE2659468A1 (de) 1977-07-28
FR2337968A1 (fr) 1977-08-05
JPS5286029A (en) 1977-07-16
ES454833A1 (es) 1978-01-01
DE2659468C2 (de) 1984-05-03

Similar Documents

Publication Publication Date Title
CA1057860A (en) Two mode harmonic and nonharmonic phase detector
US4215430A (en) Fast synchronization circuit for phase locked looped decoder
US5614861A (en) N-phase modulated signal demodulation system with carrier reproduction
EP0140042B1 (en) Digital phase lock loop circuit
EP0074793B1 (en) Phase-locked loop circuit
US5164966A (en) Nrz clock and data recovery system employing phase lock loop
US4055814A (en) Phase locked loop for synchronizing VCO with digital data pulses
US4085288A (en) Phase locked loop decoder
EP0899883B1 (en) PLL circuit with masked phase error signal
US4535306A (en) Phase-locked loop detecting circuit
CA1129990A (en) Circuit indicating phase relationship
US5159279A (en) Apparatus and method for detecting out-of-lock condition in a phase lock loop
US4112383A (en) Miller-encoded message decoder
CA1051528A (en) Data recovery system resistant to frequency deviations
JPS5941338B2 (ja) クロツクパルス再生回路
US4472686A (en) Circuit for reproducing and demodulating modulated digital signals
US4288874A (en) Timing data reproduction system
EP0158219B1 (en) Sync responsive clock generator for digital demodulators
US4686482A (en) Clock signal arrangement for regenerating a clock signal
EP0162505B1 (en) Arrangement for generating a clock signal
US5465277A (en) Device for the synchronization of digital data bursts and read apparatus comprising the device
US4141046A (en) Floppy disc data separator for use with single density encoding
JPH0213150A (ja) 復調クロック生成回路
JPH01194552A (ja) 位相誤差信号発生回路配置
CA1310756C (en) 1,7,2,3, encoding/decoding employing 3/2 frequency division