Patent ID: 11936996
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. An imaging device comprising:
a plurality of detection pixels each of which generates a voltage signal corresponding to a logarithmic value of a photocurrent;
a detection circuit that detects whether or not a change amount of the voltage signal of a detection pixel indicated by an input selection signal among the plurality of detection pixels exceeds a predetermined threshold value; and
a signal processor that processes a detection signal indicating a detection result of the detection circuit, wherein
the detection circuit includes:
a selection circuit that selects any of the voltage signal of each of the plurality of detection pixels;
a differentiator that obtains and outputs a change amount of the selected voltage signal; and
a comparison circuit that compares the output change amount with the threshold value, and
the differentiator retains the selected change amount and outputs the selected change amount to the comparison circuit.