Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
  • G11B17/02—Details
  • G11B17/022—Positioning or locking of single discs
• • 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
• • 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
  • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
  • G11B7/0953—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

Applications Claiming Priority (1)

Publications (2)

Family

ID=19820865

Family Applications (1)

Country Status (15)

Families Citing this family (6)

Family Cites Families (2)

• 1974
  • 1974-02-28 NL NLAANVRAGE7402767,A patent/NL177780C/xx not_active IP Right Cessation
  • 1974-06-10 US US05/477,904 patent/US3934080A/en not_active Expired - Lifetime
• 1975
  • 1975-02-15 DE DE2506452A patent/DE2506452C2/de not_active Expired
  • 1975-02-20 CA CA220,671A patent/CA1059620A/en not_active Expired
  • 1975-02-25 SE SE7502097A patent/SE409150B/sv unknown
  • 1975-02-25 DK DK72775AA patent/DK140160B/da unknown
  • 1975-02-25 CH CH234475A patent/CH592351A5/xx not_active IP Right Cessation
  • 1975-02-25 GB GB7797/75A patent/GB1504208A/en not_active Expired
  • 1975-02-25 IT IT20636/75A patent/IT1033176B/it active
  • 1975-02-26 AU AU78566/75A patent/AU497549B2/en not_active Expired
  • 1975-02-26 AT AT148375A patent/AT355819B/de not_active IP Right Cessation
  • 1975-02-26 ES ES435084A patent/ES435084A1/es not_active Expired
  • 1975-02-26 BE BE153784A patent/BE826027A/xx unknown
  • 1975-02-27 JP JP50024485A patent/JPS5838852B2/ja not_active Expired
  • 1975-02-28 FR FR7506358A patent/FR2262848B3/fr not_active Expired

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