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PCE
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CPC Subgroup
H04N 23/84

for processing colour signals

Full Title

Cameras or camera modules comprising electronic image sensors; Control thereof > Camera processing pipelines; Components thereof > for processing colour signals

6 direct subcodes

Child Classifications

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  • H04N 23/841
  • H04N 23/843
  • H04N 23/85 for matrixing
  • H04N 23/86 for controlling the colour saturation of colour signals, e.g. automatic chroma control circuits
  • H04N 23/87 for reinsertion of DC or slowly varying components of colour signals
  • H04N 23/88 for colour balance, e.g. white-balance circuits or colour temperature control

Top Applicants

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

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498