Power saving techniques for image sensors

Abstract

Power saving techniques are provided for processing circuitry on image sensors. Processing circuitry may include one or more processing blocks. The processing blocks may receive pixel data in the form of lines separated by blanking time. To reduce power consumption, each processing block may have a clock that is enabled when processing data and disabled during blanking time. The processing blocks may have respective clocks that are enabled and disabled at different times. Timing control circuitry may provide a clock enable signal to a first processing block. Each processing block may receive a clock enable signal and output a time-shifted clock enable signal for a subsequent processing block.