GB2089099A - Playback of capacitive disc records - Google Patents

Playback of capacitive disc records Download PDF

Info

Publication number
GB2089099A
GB2089099A GB8134765A GB8134765A GB2089099A GB 2089099 A GB2089099 A GB 2089099A GB 8134765 A GB8134765 A GB 8134765A GB 8134765 A GB8134765 A GB 8134765A GB 2089099 A GB2089099 A GB 2089099A
Authority
GB
United Kingdom
Prior art keywords
stylus
record
electrode
dielectric
face
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.)
Withdrawn
Application number
GB8134765A
Other languages
English (en)
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
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB2089099A publication Critical patent/GB2089099A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
GB8134765A 1980-11-21 1981-11-18 Playback of capacitive disc records Withdrawn GB2089099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/208,983 US4371961A (en) 1980-11-21 1980-11-21 Capacitive information system

Publications (1)

Publication Number Publication Date
GB2089099A true GB2089099A (en) 1982-06-16

Family

ID=22776861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8134765A Withdrawn GB2089099A (en) 1980-11-21 1981-11-18 Playback of capacitive disc records

Country Status (5)

Country Link
US (1) US4371961A (enExample)
JP (1) JPS57113438A (enExample)
DE (1) DE3145351A1 (enExample)
FR (1) FR2494883A1 (enExample)
GB (1) GB2089099A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489278A (en) * 1982-06-03 1984-12-18 Tokyo Shibaura Denki Kabushiki Kaisha Electrostatic voltage detecting device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
US3943276A (en) * 1974-06-03 1976-03-09 Zenith Radio Corporation Record tracking pickup structure for a capacitive disc
US3930117A (en) * 1974-11-14 1975-12-30 Rca Corp Video capacitive disc playback apparatus and stylus with dielectric coating therefor
JPS5362501A (en) * 1976-11-17 1978-06-05 Victor Co Of Japan Ltd Scanning needle
US4273967A (en) * 1976-11-17 1981-06-16 Victor Company Of Japan, Limited Stylus for reproducing capacitive videodisc
US4162510A (en) * 1977-03-25 1979-07-24 Rca Corporation Keel-tipped stylus for video disc systems
US4296371A (en) * 1980-03-17 1981-10-20 Rca Corporation System for measuring stylus shoe length

Also Published As

Publication number Publication date
FR2494883A1 (fr) 1982-05-28
DE3145351A1 (de) 1982-10-14
US4371961A (en) 1983-02-01
JPS57113438A (en) 1982-07-14
FR2494883B1 (enExample) 1984-12-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)