Patent ID: 8743248
Filing Date: 2014-06-03
Classification: H03M,H04N

Abstract:
1. A solid-state imaging device, comprising: a plurality of pixels that are arranged in a matrix form and output output signals; a plurality of first A/D converters that receive the output signals of respective columns of the plurality of pixels, convert the output signals into first digital signals, and output the first digital signals; a second A/D converter that receives a correction signal, converts the correction signal into a second digital signal, and outputs the second digital signal; a first correction calculation unit that produces a first correction formula for correcting linearity of the first digital signals; a second correction calculation unit that produces a second correction formula for correcting linearity of the second digital signal based on the second digital signal; a determination unit that compares a coefficient of the second correction formula produced by the second correction calculation unit and a coefficient of a second correction formula produced before the second correction formula, and determines whether or not to produce the first correction formula based on the comparison result; and a signal output unit that outputs an update signal for causing the first correction calculation unit to produce the first correction formula to the first correction calculation unit when it is determined to produce the first correction formula.