3839664

Information

• Patent Grant
• 3839664

• References
• Source

• Patent Number

  3,839,664

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1974
  50 years ago

• CPC

  • G11B5/596 - for track following on disks
  • G05B19/293 - with speed feedback only
  • G11B5/5521 - across disc tracks
  • G05B2219/43179 - Speed changes gradualy from constant value to zero

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 318 - Electricity: motive power systems
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER