NL7507642A - Informatiedrager en werkwijze voor het uitlezen daarvan. - Google Patents

Informatiedrager en werkwijze voor het uitlezen daarvan.

Info

Publication number
NL7507642A
NL7507642A NL7507642A NL7507642A NL7507642A NL 7507642 A NL7507642 A NL 7507642A NL 7507642 A NL7507642 A NL 7507642A NL 7507642 A NL7507642 A NL 7507642A NL 7507642 A NL7507642 A NL 7507642A
Authority
NL
Netherlands
Prior art keywords
reading
information carrier
carrier
information
Prior art date
Application number
NL7507642A
Other languages
English (en)
Dutch (nl)
Original Assignee
Battelle Development 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 Battelle Development Corp filed Critical Battelle Development Corp
Publication of NL7507642A publication Critical patent/NL7507642A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/015—Aligning or centering of the sensing device with respect to the record carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
NL7507642A 1974-06-26 1975-06-26 Informatiedrager en werkwijze voor het uitlezen daarvan. NL7507642A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US483131A US3919697A (en) 1974-06-26 1974-06-26 Data record tracking using track identifying information in the gaps between recorded data groups

Publications (1)

Publication Number Publication Date
NL7507642A true NL7507642A (nl) 1975-12-30

Family

ID=23918796

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7507642A NL7507642A (nl) 1974-06-26 1975-06-26 Informatiedrager en werkwijze voor het uitlezen daarvan.

Country Status (6)

Country Link
US (1) US3919697A (fr)
JP (1) JPS5118501A (fr)
CA (1) CA1033834A (fr)
DE (1) DE2528336A1 (fr)
GB (1) GB1506229A (fr)
NL (1) NL7507642A (fr)

Families Citing this family (103)

* Cited by examiner, † Cited by third party
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US4084201A (en) * 1975-12-02 1978-04-11 Basf Aktiengesellschaft Magnetic disc, especially a flexible magnetic disc, for track adjustment and amplitude control
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US4052741A (en) * 1975-12-23 1977-10-04 International Business Machines Corporation Track seeking and following
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Also Published As

Publication number Publication date
US3919697A (en) 1975-11-11
JPS5118501A (en) 1976-02-14
CA1033834A (fr) 1978-06-27
GB1506229A (en) 1978-04-05
DE2528336A1 (de) 1976-01-08

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