Patent ID: 11943553
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A sensor module configured to perform time-of-flight sensing comprising:
an array of image sensor pixels, each image sensor pixel configured to receive a modulation control signal based on which image charge for the time-of-flight sensing is modulated;
driver circuitry comprising a plurality of driver units, each driver unit providing the modulation control signal for a different set of image sensor pixels in the image sensor pixels;
a delay line configured to provide each driver unit in the plurality of driver units with a corresponding output signal; and
delay lock circuitry coupled to the delay line and configured to control the delay line to exhibit a fixed delay across the delay line, wherein the delay lock circuitry comprises:
a first delay lock loop configured to align rising edges based on first and second global bias voltages to provide the fixed delay across the delay line, and
a second delay lock loop configured to align falling edges based on a third global bias voltage to provide the fixed delay across the delay line.