AU519799B2 - Videodisc playback system - Google Patents

Videodisc playback system

Info

Publication number
AU519799B2
AU519799B2 AU65096/80A AU6509680A AU519799B2 AU 519799 B2 AU519799 B2 AU 519799B2 AU 65096/80 A AU65096/80 A AU 65096/80A AU 6509680 A AU6509680 A AU 6509680A AU 519799 B2 AU519799 B2 AU 519799B2
Authority
AU
Australia
Prior art keywords
playback system
videodisc
videodisc playback
playback
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
AU65096/80A
Other versions
AU6509680A (en
Inventor
James E. Elliott
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.)
Discovision Associates
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Priority to AU65096/80A priority Critical patent/AU519799B2/en
Publication of AU6509680A publication Critical patent/AU6509680A/en
Application granted granted Critical
Publication of AU519799B2 publication Critical patent/AU519799B2/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
    • 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
    • G11B7/0908—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 focusing 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
AU65096/80A 1980-12-01 1980-12-01 Videodisc playback system Expired AU519799B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65096/80A AU519799B2 (en) 1980-12-01 1980-12-01 Videodisc playback system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU65096/80A AU519799B2 (en) 1980-12-01 1980-12-01 Videodisc playback system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU42648/78A Division AU514607B2 (en) 1978-12-18 1978-12-18 Videodisc player

Publications (2)

Publication Number Publication Date
AU6509680A AU6509680A (en) 1981-05-14
AU519799B2 true AU519799B2 (en) 1981-12-24

Family

ID=3749737

Family Applications (1)

Application Number Title Priority Date Filing Date
AU65096/80A Expired AU519799B2 (en) 1980-12-01 1980-12-01 Videodisc playback system

Country Status (1)

Country Link
AU (1) AU519799B2 (en)

Also Published As

Publication number Publication date
AU6509680A (en) 1981-05-14

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