Patent ID: 11877077
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method for black level correction of image signals, the method comprising:
controlling a first set of active image sensor pixels to generate a first set of image signals with a first characteristic;
controlling a second set of active image sensor pixels to generate a second set of image signals with a second characteristic;
controlling a first set of dark image sensor pixels to generate a first set of black level signals with the first characteristic by mimicking the generation of the first set of image signals;
controlling a second set of dark image sensor pixels to generate a second set of black level signals with the second characteristic by mimicking the generation of the second set of image signals, wherein the first and second characteristics have differing dynamic ranges or resolutions;
performing black level correction operations for the first set of image signals using the first set of black level signal; and
performing additional black level correction operations for the second set of image signals using the second set of black level signals.