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IPC Subgroup
H04N 9/86

the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system

Introduced: January 1985

Last revised: January 2006

Full Title

Details of colour television systems > Processing of colour television signals in connection with recording > Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback > the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
PICTORIAL COMMUNICATION, e.g. TELEVISION

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 97,396
  2. HUAWEI TECHNOLOGIES COMPANY CN 96,502
  3. SAMSUNG ELECTRONICS COMPANY KR 86,981
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
  5. HUAWEI TECHNOLOGIES COMPANY 55,349
  6. LG ELECTRONICS KR 53,649
  7. CANON 33,341
  8. SONY CORPORATION JP 32,761
  9. ZTE CORPORATION CN 32,274
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327