Patent ID: 8310581

Claim:
A solid state imaging device comprising: a pixel array unit where unit pixels each including a photoelectric conversion element are two-dimensionally arrayed in a matrix shape; a row scanner for selecting an arbitrary row in the pixel array unit; a plurality of column-by-column AD converters for separately converting voltage signals respectively outputted from the unit pixels in the selected arbitrary row into digital signals; a column scanner for sequentially column-scanning the digital signals outputted by the plurality of column-by-column AD converters and outputting the digital signals; a controller for timing-controlling the row scanner, the column-by-column AD converters and the column scanner; and an AD conversion result adjuster for judging whether or not a status indicating that reference voltage reaches a reference voltage judgment value is generated, and converting the digital signals into digital pixel values set in accordance with the reference voltage judgment value when a result of the judgment is positive.