DIFF Subgroup
H04N 23/84 for processing colour signals
Introduced: January 2023
Full Title
Cameras or camera modules comprising electronic image sensors; Control thereof > Camera processing pipelines; Components thereof > for processing colour signals
Of 6 combined children, 4 exist in both systems.
2 codes are CPC-only extensions.
IPC defines codes here since 2023.
Child Classifications
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- H04N 23/86 for controlling the colour saturation of colour signals, e.g. automatic chroma control circuits since 2023 IPC+CPC Available in IPC and CPC
- H04N 23/87 for reinsertion of DC or slowly varying components of colour signals since 2023 IPC+CPC Available in IPC and CPC
- H04N 23/88 for colour balance, e.g. white-balance circuits or colour temperature control since 2023 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class H04,2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498