IPC Subgroup
H04N 5/919 by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels
Introduced: January 1995
Last revised: January 2006
Full Title
Details of television systems > Television signal recording > Television signal processing therefor > for bandwidth reduction > by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Additional Content
Processing of colour television signals for recording the signal in a plurality of channels, the bandwidth of each channel being less than the bandwidth of the signal
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327