3840890

Information

• Patent Grant
• 3840890

• References
• Source

• Patent Number

  3,840,890

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • G11B20/08 - Pulse-modulation recording or reproducing
  • G11B23/0007 - Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information

• US Classifications

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