H04N 25/00 Circuitry of solid-state image sensors [SSIS]; Control thereof
Introduced: January 2023
Additional Content IPC
image sensor image sensors sensor that detects and conveys the information that constitutes an image. An image sensor may do so by producing a signal that represents location-dependent attenuation of light (as the light passes through or reflects off a medium). The signal is an electric signal such as an electric voltage or current. The light an image sensor may detect is not limited to visible light but can be electromagnetic radiation in other wavelengths (e.g. infrared, ultraviolet, X-rays, gamma rays).
IPC and CPC are identically structured here. All 9 subcodes exist in both systems.
IPC defines codes here since 2023.
Child Classifications
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- H04N 25/10 for transforming different wavelengths into image signals since 2023 IPC+CPC Available in IPC and CPC
- H04N 25/20 for transforming only infrared radiation into image signals since 2023 IPC+CPC Available in IPC and CPC
- H04N 25/40 Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled since 2023 +1 CPC IPC+CPC Available in IPC and CPC
- H04N 25/47 Image sensors with pixel address output; Event-driven image sensors; Selection of pixels to be read out based on image data since 2023 IPC+CPC Available in IPC and CPC
- H04N 25/48 Increasing resolution by shifting the sensor relative to the scene since 2023 IPC+CPC Available in IPC and CPC
- H04N 25/60 Noise processing, e.g. detecting, correcting, reducing or removing noise since 2023 IPC+CPC Available in IPC and CPC
- H04N 25/70 SSIS architectures; Circuits associated therewith 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