CA1070843A - Method and apparatus for detecting a preamble in a bi-phase data recovery system - Google Patents

Method and apparatus for detecting a preamble in a bi-phase data recovery system

Info

Publication number
CA1070843A
CA1070843A CA272,010A CA272010A CA1070843A CA 1070843 A CA1070843 A CA 1070843A CA 272010 A CA272010 A CA 272010A CA 1070843 A CA1070843 A CA 1070843A
Authority
CA
Canada
Prior art keywords
counter
pulse
data
preamble
clock
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
CA272,010A
Other languages
English (en)
French (fr)
Inventor
James G. Boone
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.)
NCR Voyix Corp
Original Assignee
NCR 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 NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of CA1070843A publication Critical patent/CA1070843A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/046—Speed or phase control by synchronisation signals using special codes as synchronising signal using a dotting sequence
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CA272,010A 1976-04-29 1977-02-17 Method and apparatus for detecting a preamble in a bi-phase data recovery system Expired CA1070843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/681,674 US4054950A (en) 1976-04-29 1976-04-29 Apparatus for detecting a preamble in a bi-phase data recovery system

Publications (1)

Publication Number Publication Date
CA1070843A true CA1070843A (en) 1980-01-29

Family

ID=24736267

Family Applications (1)

Application Number Title Priority Date Filing Date
CA272,010A Expired CA1070843A (en) 1976-04-29 1977-02-17 Method and apparatus for detecting a preamble in a bi-phase data recovery system

Country Status (6)

Country Link
US (1) US4054950A (enExample)
JP (1) JPS52132815A (enExample)
CA (1) CA1070843A (enExample)
DE (1) DE2719309C3 (enExample)
FR (1) FR2350008A1 (enExample)
GB (1) GB1530107A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE1438T1 (de) * 1978-08-16 1982-08-15 Ward & Goldstone Limited Multiplexsystem zur informationsverarbeitung.
US4298956A (en) * 1979-05-14 1981-11-03 Honeywell Information Systems Inc. Digital read recovery with variable frequency compensation using read only memories
US4320465A (en) * 1979-05-14 1982-03-16 Honeywell Information Systems Inc. Digital frequency modulation and modified frequency modulation read recovery with data separation
US4339823A (en) * 1980-08-15 1982-07-13 Motorola, Inc. Phase corrected clock signal recovery circuit
JPS57203213A (en) * 1981-06-08 1982-12-13 Trio Kenwood Corp Clock signal reproducing circuit
DE3537477A1 (de) * 1985-10-22 1987-04-23 Porsche Ag Anordnung zur individuellen anpassung einer seriellen schnittstelle eines datenverarbeitenden systems an eine datenuebertragungsgeschwindigkeit eines kommunikationspartners
US7685456B1 (en) * 2003-07-30 2010-03-23 Marvell Israel (Misl) Ltd. DDR interface bus control
US7397344B2 (en) * 2005-01-06 2008-07-08 Lear Corporation Dual range vehicle remote
JP4507884B2 (ja) * 2005-01-11 2010-07-21 トヨタ自動車株式会社 遠隔制御システム及び遠隔制御装置を備える車両
JP4501719B2 (ja) * 2005-02-22 2010-07-14 トヨタ自動車株式会社 車両遠隔操作装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB863174A (enExample) * 1957-09-30
DE1257200B (de) * 1965-11-10 1967-12-28 Standard Elektrik Lorenz Ag Anordnung zum Erkennen einer Folge von n gleichen Zeichen, insbesondere in einer PCM-Impulsfolge
US3399351A (en) * 1966-04-07 1968-08-27 Teletype Corp Sequence detection circuit
US3428904A (en) * 1966-06-24 1969-02-18 Ibm Data detector for magnetic storage device
US3537013A (en) * 1967-07-31 1970-10-27 Itt Digital phase lock loop
US3550017A (en) * 1968-09-30 1970-12-22 Sylvania Electric Prod Phase locked pulse train extractor system
GB1386183A (en) * 1972-10-05 1975-03-05 Elliott Brothers London Ltd Pulse signal handling circuit arrangements
US3818358A (en) * 1972-12-29 1974-06-18 Stromberg Carlson Corp Noise rejection circuit for digital systems
US3894246A (en) * 1974-06-24 1975-07-08 Rockwell International Corp Clock recovering apparatus and method
US3922613A (en) * 1975-01-02 1975-11-25 Honeywell Inf Systems Information detection apparatus having an adaptive digital tracking oscillator
US3990049A (en) * 1975-05-12 1976-11-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Selective data segment monitoring system

Also Published As

Publication number Publication date
GB1530107A (en) 1978-10-25
US4054950A (en) 1977-10-18
DE2719309A1 (de) 1977-11-03
FR2350008B1 (enExample) 1982-07-09
JPS52132815A (en) 1977-11-07
FR2350008A1 (fr) 1977-11-25
DE2719309B2 (de) 1978-09-21
DE2719309C3 (de) 1979-05-10

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Legal Events

Date Code Title Description
MKEX Expiry