Patent ID: 9635296
Date: 2017-04-25
CPC Classifications: H04N

Claim:
1. A solid-state imaging device that has a plurality of pixel circuits arranged in a matrix form in column and row directions and reads amounts of accumulated charge using a correlated double sampling method, the plurality of pixel circuits converting the amounts of accumulated charge into voltages by photoelectric conversion, and outputting the converted voltages to column signal lines, the solid-state imaging device comprising: AD converters that convert the output voltages outputted to the column signal lines into digital values, wherein each of the AD converters includes: the comparator compares the output voltage obtained after a lapse of a reset period in which a voltage of a floating diffusion portion in a pixel circuit which corresponds to one of the pixel circuits is reset, with a predetermined comparison voltage and amplifies a voltage difference between the output voltage and the comparison voltage, and the judging circuit judges whether light received by the pixel circuit is intense light, during a predetermined detection period between the reset period and a reset level sampling period in which the output voltage obtained after the reset is sampled as a reset level voltage, based on a slope of a voltage change when the output voltage changes toward the reset level voltage immediately after the reset period.