IPC Subgroup
H04N 5/57 Control of contrast or brightness
Introduced: January 1985
Last revised: January 2006
Full Title
Details of television systems > Receiver circuitry > Control of contrast or brightness
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Related Keywords
TELEVISION contrast or brightness control
2 direct subcodes
Child Classifications
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