ES485997A1 - Video disc player - has track skipping device comprising electromagnet moving stylus radially across disc - Google Patents

Video disc player - has track skipping device comprising electromagnet moving stylus radially across disc

Info

Publication number
ES485997A1
ES485997A1 ES485997A ES485997A ES485997A1 ES 485997 A1 ES485997 A1 ES 485997A1 ES 485997 A ES485997 A ES 485997A ES 485997 A ES485997 A ES 485997A ES 485997 A1 ES485997 A1 ES 485997A1
Authority
ES
Spain
Prior art keywords
stylus
carriage
disc
arm
electromagnet
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
ES485997A
Other languages
Spanish (es)
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.)
RCA Corp
Original Assignee
RCA 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
Priority claimed from US06/039,359 external-priority patent/US4262174A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES485997A1 publication Critical patent/ES485997A1/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
    • G11B3/125—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using electric or magnetic means
    • G11B3/127—Providing horizontal force, e.g. anti-skating force

Landscapes

  • Moving Of Heads (AREA)
  • Feeding And Guiding Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

The video disc player has a carriage executing a translational movement in a manner according to the radial movement of the track-following stylus during replay. One end of the stylus arm is flexibly linked to the carriage in such a way that the stylus projects through a hole in the carriage when the arm is lowered for replay. The stylus arm has a magnetic element in the region of its stylus carrying end. An electromagnet produces a controllable magnetic field of given polarity when excited and is fixed to the carriage near the magnetic element. The electromagnet is excited selectively in order to displace the stylus radially.
ES485997A 1978-11-16 1979-11-15 Video disc player - has track skipping device comprising electromagnet moving stylus radially across disc Expired ES485997A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7844739 1978-11-16
US06/039,359 US4262174A (en) 1979-05-15 1979-05-15 Track skipper for video disc player

Publications (1)

Publication Number Publication Date
ES485997A1 true ES485997A1 (en) 1980-09-01

Family

ID=26269598

Family Applications (1)

Application Number Title Priority Date Filing Date
ES485997A Expired ES485997A1 (en) 1978-11-16 1979-11-15 Video disc player - has track skipping device comprising electromagnet moving stylus radially across disc

Country Status (11)

Country Link
AU (1) AU525918B2 (en)
CA (1) CA1131775A (en)
DE (1) DE2946015A1 (en)
DK (1) DK485279A (en)
ES (1) ES485997A1 (en)
FR (1) FR2441900A1 (en)
HK (1) HK49883A (en)
IT (1) IT1193335B (en)
PL (1) PL123280B1 (en)
SE (1) SE7909299L (en)
SG (1) SG30183G (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064252B (en) * 1979-11-19 1983-11-30 Rca Corp Didirectional pulse generator
US4375094A (en) * 1980-11-10 1983-02-22 Rca Corporation Apparatus for advancing a video disc pickup transducer beyond a disc record defect
JPS57150173A (en) * 1981-03-12 1982-09-16 Victor Co Of Japan Ltd Reproducer for disc shape information recording medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5048820A (en) * 1973-04-11 1975-05-01
JPS53113505A (en) * 1977-03-15 1978-10-04 Victor Co Of Japan Ltd Pickup device for rotary recording medium reproducing signal
JPS594782B2 (en) * 1977-03-14 1984-01-31 日本ビクター株式会社 Signal pickup device for rotating recording media playback device
US4170783A (en) * 1977-03-14 1979-10-09 Victor Company Of Japan, Ltd. Signal pickup device for reproducing an information signal recorded on a track of a rotary recording medium
AU530389B2 (en) * 1978-05-22 1983-07-14 Rca Corp. Recording/playback apparatus facilitating track skipping
CA1133633A (en) * 1978-11-16 1982-10-12 Elvin D. Simshauser Track skipper apparatus for video disc player

Also Published As

Publication number Publication date
DK485279A (en) 1980-05-17
FR2441900A1 (en) 1980-06-13
IT1193335B (en) 1988-06-15
HK49883A (en) 1983-11-11
IT7927256A0 (en) 1979-11-13
CA1131775A (en) 1982-09-14
AU5269379A (en) 1980-05-22
SG30183G (en) 1984-04-19
DE2946015A1 (en) 1980-05-29
PL219641A1 (en) 1980-08-11
SE7909299L (en) 1980-05-17
AU525918B2 (en) 1982-12-09
PL123280B1 (en) 1982-10-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001009