Patent ID: 9191600
Filing Date: 2015-11-17
Classification: H01L,H04N

Abstract:
1. A solid-state imaging apparatus comprising: a plurality of pixels arranged in a matrix configured to generate a signal by a photoelectric conversion; a plurality of column amplifier units arranged each correspondingly to one of columns of the plurality of pixels, configured to output first signals generated by amplifying at a first gain the signals from the plurality of pixels, and second signals generated by amplifying at a second gain the signals from the plurality of pixels, the second gain being greater than the first gain; a selecting unit configured to output a signal selected from the first and second signals each corresponding to an identical one of the plurality of pixels; an analog to digital converting unit configured to convert the signal output from the selecting unit to a digital signal; a comparing unit inputting a digital signal from the analog to digital converting unit configured to detect a gain error between a ratio of the first gain and the second gain, and a predetermined ratio of the first gain and the second gain; and a correcting unit configured to correct the digital signal based on the gain error.