Patent ID: 9699397
Date: 2017-07-04
CPC Classifications: H04N

Claim:
1. An imaging device, comprising: a pixel array circuit comprising a first pixel and a second pixel; a first switch coupled to the first pixel via a first column signal line; a first capacitor coupled to the first switch; a second switch coupled to the second pixel via a second column signal line; a second capacitor coupled to the second switch; a third switch coupled to the first pixel and the second capacitor; a fourth switch coupled to the second pixel and the first capacitor; a reference signal generator configured to generate a reference signal; and a comparator configured to compare the reference signal with a first pixel signal transmitted via the first column signal line, wherein a first input terminal of the comparator is coupled to at least one of the first capacitor or the second capacitor, and wherein a second input terminal of the comparator is coupled to the reference signal generator via a third capacitor.