IPC Subgroup
G11B 21/02 Driving or moving of heads
Introduced: September 1968
Last revised: January 2006
Full Title
Head arrangements not specific to the method of recording or reproducing > Driving or moving of heads
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5 direct subcodes
Child Classifications
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- G11B 21/03 for correcting time base error
- G11B 21/04 Automatic feed mechanism producing a transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan
- G11B 21/08 Track changing or selecting
- G11B 21/1 Track finding or aligning by moving the head
- G11B 21/12 Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position