Patent ID: 9509932
Filing Date: 2016-11-29
CPC Classification: H04N

Claim Text:
1. An image sensor comprising: a comparator comprising a first input terminal configured to receive a reset signal, a second input terminal configured to receive an image signal, a third input terminal configured to receive a ramp signal configured to ramp in one direction, and an output terminal; and a switch circuit comprising a plurality of switches, wherein the comparator is configured to compare the reset signal with the ramp signal and output a first comparison signal through the output terminal according to a first arrangement of the switches in a reset phase and the comparator is configured to compare the image signal with the ramp signal and output a second comparison signal through the output terminal according to a second arrangement of the switches in an image phase, and wherein the comparator is configured to compare the reset signal and the ramp signal and simultaneously compare the image signal and the ramp signal according to a third arrangement of the switches in an initialization phase.