Masking of heads; Selecting or switching of heads between operative and inoperative functions; Masking of beams, e.g. of light beams

Introduced: September 1968

Last revised: January 2006

Full Title

Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function > Control of operating function, e.g. switching from recording to reproducing > Masking of heads; Selecting or switching of heads between operative and inoperative functions; Masking of beams, e.g. of light beams

Classification Context

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

1 direct subcode

Child Classifications

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G11B 15/14 Masking or switching periodically, e.g. of rotating heads