Patent ID: 7351946

Claim:
A semiconductor integrated circuit comprising: an amplifying circuit for amplifying an analog color video signal output from an imaging element; an analog to digital conversion circuit for converting the analog color video signal output from the amplifying circuit to a digital signal comprising codes; a differential circuit for obtaining a difference between codes of adjacent pixels in regards to same colors; and a code conversion circuit for executing a conversion operation to output codes from the differential circuit; wherein the codes are of adjacent pixels in regards to an order in which the analog, color video signal is outputted, wherein change bits between a second output code from the code conversion circuit and a next to the second output code are less in number than change bits between a first output code and a next to the first output code by the conversion operation when the first output code changes from positive to negative, wherein change bits between the second output code and the next to the second output code are less in number than change bits between the first output code and the next to the first output code by the conversion operation when the first output code changes from negative to positive.