3870320

Information

• Patent Grant
• 3870320

• References
• Source

• Patent Number

  3,870,320

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1975
  49 years ago

• CPC

  • G11B21/00 - Head arrangements not specific to the method of recording or reproducing
  • G11B3/08 - Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
  • G11B3/08522 - using mechanical detecting means
  • G11B3/0859 - driven by belt or analogous element
  • G11B3/0952 - using automatic means
  • G11B9/00 - Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00 Record carriers therefor
  • G11B19/08 - by using devices external to the driving mechanisms
  • G11B19/14 - by sensing movement or position of head

• US Classifications

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