IPC Subgroup
H04N 5/93 Regeneration of the television signal or of selected parts thereof
Introduced: January 1980
Last revised: January 2006
Full Title
Details of television systems > Television signal recording > Television signal processing therefor > Regeneration of the television signal or of selected parts thereof
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Additional Content
Regeneration of colour television signals
Related Keywords
REGENERATION of TV signals for recording
6 direct subcodes
Child Classifications
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- H04N 5/931 for restoring the level of the reproduced signal
- H04N 5/932 Regeneration of analogue synchronisation signals
- H04N 5/935 Regeneration of digital synchronisation signals
- H04N 5/937 by assembling picture element blocks in an intermediate store
- H04N 5/94 Signal drop-out compensation
- H04N 5/95 Time-base error compensation
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