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PCE
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IPC Main Group
G11B 9/00

Recording or reproducing using a method or means not covered by one of the main groups; Record carriers therefor

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
INFORMATION STORAGE
Subclass:
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER

6 direct subcodes

Child Classifications

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  • G11B 9/02 using ferroelectric record carriers; Record carriers therefor
  • G11B 9/04 using record carriers having variable electric resistance; Record carriers therefor
  • G11B 9/08 using electrostatic charge injection; Record carriers therefor
  • G11B 9/1 using electron beam; Record carriers therefor