DIFF Subgroup
H04N 25/671 for non-uniformity detection or correction
Introduced: January 2023
Full Title
Circuitry of solid-state image sensors [SSIS]; Control thereof > Noise processing, e.g. detecting, correcting, reducing or removing noise > applied to fixed-pattern noise, e.g. non-uniformity of response > for non-uniformity detection or correction
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 2023.
Child Classifications
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- H04N 25/672 between adjacent sensors or output registers for reading a single image since 2023 IPC+CPC Available in IPC and CPC
- H04N 25/677 for reducing the column or line fixed pattern noise since 2023 IPC+CPC Available in IPC and CPC