3838907

Information

• Patent Grant
• 3838907

• References
• Source

• Patent Number

  3,838,907

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1974
  50 years ago

• CPC

  • G11B11/10515 - Reproducing
  • G01T1/16 - Measuring radiation intensity
  • G02F1/09 - based on magneto-optical elements
  • G03G5/16 - Layers for recording by changing the magnetic properties
  • G11B11/10539 - using electromagnetic beams
  • G11B11/10543 - using optical beam of radiation
  • G11B11/11 - using a beam

• US Classifications

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