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

Claim 0:
1. A solid-state imaging element comprising:
a plurality of detection pixels each of which generates a voltage signal corresponding to a logarithmic value of a photocurrent; and
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,
the detection circuit including a selection circuit, a differentiator and a comparison circuit, wherein
the selection circuit selects any of the voltage signal of each of the plurality of detection pixels,
the differentiator obtains and outputs the change amount of the selected voltage signal,
the comparison circuit 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.