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US 11,877,068 B2Granted
Advanced computational pixel imagers with multiple in-pixel counters
AssigneeAnduril Industries, Inc.
InventorsMichael W. Kelly, Curtis Colonero, Christopher David, Justin Baker
Life of this patent
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Abstract
A computational pixel imaging device can include multiple digitizing counters per pixel that can be used to execute simultaneous signal-processing threads on acquired image data. The imaging device can also include infinite dynamic range sensing and perform signal down-sampling.
Claims15
A pixel integrated circuit comprising:
- a b-bit counter;
- a data line arranged to transmit a value of a most significant bit of the b-bit counter;
- and
- read-out circuitry configured to:
- read the most significant bit at a higher read-out rate than a read-out rate for other bits of the b-bit counter;
- determine a count rate from a first count accumulated by the b-bit counter for a first time period;
- and
- determine one or more times at which to read-out the MSB of the b-bit counter for a second count accumulated by the b-bit counter for a second time period that is longer than the first time period.
5 more elements
A method of accumulating counts with a b-bit counter, the method comprising:
- accumulating counts on the b-bit counter;
- and
- reading, by read-out circuitry, data from a most significant bit of the b-bit counter at a higher read-out rate than a read-out rate for other bits of the b-bit counter;
- determining a count rate from a first count accumulated by the b-bit counter for a first time period;
- and
- determining, from the first count and time period, one or more times at which to read-out the MSB of the b-bit counter for a second count accumulated by the b-bit counter for a second time period that is longer than the first time period.
3 more elements
Dependencies are inferred from the claim text.