IPC Subgroup
H04N 21/8358 involving watermark
Introduced: January 2011
Full Title
Selective content distribution, e.g. interactive television or video on demand [VOD] > Generation or processing of content or additional data by content creator independently of the distribution process; Content > Generation or processing of protective or descriptive data associated with content; Content structuring > Generation of protective data, e.g. certificates > involving watermark
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION