3631414

Information

• Patent Grant
• 3631414

• References
• Source

• Patent Number

  3,631,414

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1971
  53 years ago

• CPC

  • G11B20/10203 - baseline correction
  • G11B5/09 - Digital recording
  • G11B11/10 - using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier
  • G11B11/105 - using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical
  • G11B11/10582 - Record carriers characterised by the selection of the material or by the structure or form
  • G11B11/10586 - characterised by the selection of the material
  • G11B11/11 - using a beam

• US Classifications

  • 365 - Static information storage and retrieval
  • 359 - Optical: systems and elements
  • 360 - Dynamic magnetic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER