Patent ID: 9325923
Filing Date: 2016-04-26
CPC Classification: H04N

Claim Text:
1. A sensor system comprising: a pixel array comprising a plurality of pixels arranged in a plurality of columns and a plurality of rows; a plurality of column units coupled to the plurality of columns, respectively, and including a plurality of counters, respectively, wherein the plurality of counters are configured to increment their respective count values based on pixel signals from pixels of the respective columns, and are further configured to produce a plurality of peak transient currents, respectively, at a transition between a first pre-determined count value and a second pre-determined count value for the respective counters; wherein a peak transient current for a first column unit occurs when a predetermined number of bits of a counter of the first column unit transition from a logical-0 state to a logical-1 state, or vice versa; wherein the counter of the first column unit is configured to count according to a different count sequence than other counters in the other respective column units; and wherein the counters are configured to deliver the plurality of peak transient currents at different times from one another.