Patent ID: 9661253
Date: 2017-05-23
CPC Classifications: G06K,H01L,H04N

Claim:
1. An imaging device comprising: a pixel section having a first pixel unit and a second pixel unit, each of the first and second pixel units being configured to perform photoelectric conversion; a first column signal line extended in a first direction and configured to transmit a first pixel signal output from the first pixel unit; a second column signal line extended in the first direction and configured to transmit a second pixel signal output from the second pixel unit, the second column signal line being arranged adjacent to the first column signal line; a reference signal generator configured to generate a reference signal; a first comparator configured to convert the first pixel signal transmitted via the first column signal line into a first digital signal based on a comparison of the reference signal with the first pixel signal; switching circuitry coupled to the first pixel unit via the first column signal line and to the second pixel unit via the second column signal line, wherein the first comparator is coupled to the pixel section via a first capacitor, wherein the first comparator is coupled to the reference signal generator via a second capacitor, wherein the first comparator has a first transistor and a second transistor, wherein a gate of the first transistor is coupled to the first capacitor, wherein a gate of the second transistor is coupled to the second capacitor; wherein at least one of a source and a drain of the first transistor is coupled to at least one of a source and a drain of the second transistor, wherein a first terminal of the switching circuitry is coupled to the first pixel unit which includes a first photodiode configured to receive light through a first color filter, wherein a second terminal of the switching circuitry is coupled to the second pixel unit which includes a second photodiode configured to receive light through a second color filter, wherein the first color filter and the second color filter are configured to transmit a same colored light, wherein the switching circuitry has a third transistor, and wherein a source of the third transistor is one of the first terminal and the second terminal of the switching circuitry, and a drain of the third transistor is another of the first terminal and the second terminal of the switching circuitry.