US Patent 7978240 Enhancing image quality imaging unit and image sensor

There is provided an imaging unit: including an image sensor with a number of pixels arranged in a matrix, the pixels having color pixels where color filters are disposed, and white pixels where the color filters are not disposed; a sampling circuit section for sampling pixel signals generated in the image sensor; and a main controller for controlling the image sensor and/or the sampling circuit section to sample the pixel signals generated in the white pixels or the pixel signals generated in the color pixels sequentially in a time-series manner.