Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; 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

CUTTING to form grooves in gramophone recordsPRESSING of grooves into gramophone records during recording

7 direct subcodes

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G11B 3/02 Arrangements of heads
G11B 3/44 Styli, e.g. sapphire, diamond
G11B 3/58 Cleaning record carriers or styli, e.g. removing shavings or dust
G11B 3/6 Turntables for record carriers
G11B 3/64 Re-recording, i.e. transcribing information from one grooved record carrier on to one or more similar or dissimilar record carriers
G11B 3/66 Erasing information, e.g. for reuse of record carrier
G11B 3/68 Record carriers