Control of operating function, e.g. switching from recording to reproducing

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

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

CPC:

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 (driving or guiding heads G11B3/00 - G11B7/00, G11B21/00) > Control of operating function, e.g. switching from recording to reproducing

Of 8 combined children, 6 exist in both systems.

2 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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G11B 15/023 CPC only CPC only
G11B 15/026 CPC only CPC only
G11B 15/03 by using counters since 1985 IPC+CPC Available in IPC and CPC
G11B 15/04 Preventing, inhibiting, or warning against accidental erasing or double recording (G11B15/05 takes precedence) IPC+CPC Available in IPC and CPC
G11B 15/05 by sensing features present on or derived from record carrier or container (G11B15/16 takes precedence) since 1985 IPC+CPC Available in IPC and CPC
G11B 15/10 Manually-operated control; Solenoid-operated control +2 CPC IPC+CPC Available in IPC and CPC
G11B 15/12 Masking of heads; Selecting or switching of heads between operative and inoperative functions ; Masking of beams, e.g. of light beams +1 CPC IPC+CPC Available in IPC and CPC
G11B 15/16 by sensing presence, absence or position of record carrier or container IPC+CPC Available in IPC and CPC