The correlated double sampling of the direct current offset and the gain correction null image vessel

摘要

(57) Abstract The picture system (100) the circuit in the CDS circuit line of the picture vessel the correlation double sampler (150) the picture system and the method of correcting the difference between. The plural profit correction factors which possess initial value and the plural direct current offset correction factors which possess initial value are remembered. Standard direct current offset value and standard profit value are decided and (303), direct current offset value and the profit value for each CDS circuit, are respectively compared with standard direct current offset value and standard profit value, plural profit correction factors and plural direct current offset correction factors are renewed according to this comparison.