3881184

Information

• Patent Grant
• 3881184

• References
• Source

• Patent Number

  3,881,184

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1975
  49 years ago

• CPC

  • G11B21/106 - on disks
  • G05B19/291 - the positional error is used to control continuously the servomotor according to its magnitude
  • G05B19/4163 - Adaptive control of feed or cutting velocity
  • G11B5/596 - for track following on disks
  • G11B5/59677 - with optical servo tracking
  • G05B2219/41363 - Excess in error, error too large, follow up error
  • G11B5/59627 - Aligning for runout, eccentricity or offset compensation

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 360 - Dynamic magnetic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER