Patent ID: 11863876
Assignee: ANDURIL INDUSTRIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. A computational pixel imaging apparatus for event-based imaging, comprising:
a plurality of pixels, each pixel comprising:
a signal converter configured to convert a received analog signal representative of received radiation to a sequence of pulses, wherein the signal converter comprises:
a first capacitance of a first value;
a second capacitance larger than the first capacitance; and
a switch configured to select one of the first capacitance and the second capacitance for charging in response to the received analog signal; and

a first counter configured to, in response to the sequence of pulses, increment a digital number for a first portion of the exposure period and decrement the digital number for a second portion of the exposure period to accumulate a resulting first digital number; and
logic circuitry configured to identify one or more pixels of the plurality of pixels that have detected changes in the received radiation based, at least in part, on one or more resulting first digital numbers on one or more of the first counters.