AU562979B2 - Video disc player - Google Patents

Video disc player

Info

Publication number
AU562979B2
AU562979B2 AU47649/85A AU4764985A AU562979B2 AU 562979 B2 AU562979 B2 AU 562979B2 AU 47649/85 A AU47649/85 A AU 47649/85A AU 4764985 A AU4764985 A AU 4764985A AU 562979 B2 AU562979 B2 AU 562979B2
Authority
AU
Australia
Prior art keywords
video disc
disc player
player
video
disc
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
AU47649/85A
Other versions
AU4764985A (en
Inventor
Ludwig Ceshkovsky
Wayne Ray Dakin
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
Priority claimed from AU13669/83A external-priority patent/AU545092B2/en
Application filed by Discovision Associates filed Critical Discovision Associates
Priority to AU47649/85A priority Critical patent/AU562979B2/en
Publication of AU4764985A publication Critical patent/AU4764985A/en
Priority to AU71972/87A priority patent/AU573128B2/en
Priority to AU71971/87A priority patent/AU573127B2/en
Application granted granted Critical
Publication of AU562979B2 publication Critical patent/AU562979B2/en
Anticipated expiration legal-status Critical
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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
AU47649/85A 1978-03-27 1985-09-20 Video disc player Expired AU562979B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU47649/85A AU562979B2 (en) 1978-03-27 1985-09-20 Video disc player
AU71972/87A AU573128B2 (en) 1978-03-27 1987-04-24 Tracking method and tracking system
AU71971/87A AU573127B2 (en) 1978-03-27 1987-04-24 Tracking method for recorded information

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US89067078A 1978-03-27 1978-03-27
AU530869 1979-09-26
AU13669/83A AU545092B2 (en) 1979-09-26 1983-04-19 Video disc player
AU47649/85A AU562979B2 (en) 1978-03-27 1985-09-20 Video disc player

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU13669/83A Division AU545092B2 (en) 1978-03-27 1983-04-19 Video disc player

Related Child Applications (2)

Application Number Title Priority Date Filing Date
AU71972/87A Division AU573128B2 (en) 1978-03-27 1987-04-24 Tracking method and tracking system
AU71971/87A Division AU573127B2 (en) 1978-03-27 1987-04-24 Tracking method for recorded information

Publications (2)

Publication Number Publication Date
AU4764985A AU4764985A (en) 1986-01-16
AU562979B2 true AU562979B2 (en) 1987-06-25

Family

ID=27152058

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47649/85A Expired AU562979B2 (en) 1978-03-27 1985-09-20 Video disc player

Country Status (1)

Country Link
AU (1) AU562979B2 (en)

Also Published As

Publication number Publication date
AU4764985A (en) 1986-01-16

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired