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
  • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
• • 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
• • 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
  • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously

Landscapes

• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Optical Recording Or Reproduction (AREA)
• Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)
• Holo Graphy (AREA)
• Optical Head (AREA)
• Moving Of Head For Track Selection And Changing (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=8179947

Family Applications (1)

Country Status (9)

Families Citing this family (4)

Family Cites Families (7)

• 2001
  • 2001-10-25 TW TW090126402A patent/TW588336B/zh not_active IP Right Cessation
• 2002
  • 2002-01-25 WO PCT/IB2002/000215 patent/WO2002069334A1/en not_active Ceased
  • 2002-01-25 KR KR1020027014552A patent/KR20040016370A/ko not_active Ceased
  • 2002-01-25 DE DE60226929T patent/DE60226929D1/de not_active Expired - Fee Related
  • 2002-01-25 CN CNB028004493A patent/CN1327424C/zh not_active Expired - Fee Related
  • 2002-01-25 JP JP2002568369A patent/JP2004519802A/ja active Pending
  • 2002-01-25 EP EP02715633A patent/EP1277204B1/de not_active Expired - Lifetime
  • 2002-01-25 AT AT02715633T patent/ATE397778T1/de not_active IP Right Cessation
  • 2002-01-31 US US10/066,446 patent/US6813224B2/en not_active Expired - Fee Related

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