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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H04N 3/12

by switched stationary formation of lamps, photocells or light relays

Introduced: September 1968

Title

Titles differ between systems:

IPC: by switched stationary formation of lamps, photocells, or light relays

CPC: by switched stationary formation of lamps, photocells or light relays

Full Title

Full titles differ between systems:

IPC:

Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical > by switched stationary formation of lamps, photocells, or light relays

CPC:

Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical (H04N3/36 takes precedence) > by switched stationary formation of lamps, photocells or light relays

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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