Solid state imaging device and driving method thereof
DCFirst Claim
1. A solid state imaging device, comprising:
- a solid state imaging element including a plurality of photoelectric conversion elements arranged in a matrix, the solid state imaging element including pixels grouped into pixel mixture unit areas, each of which includes q pixels (q is a natural number equal to or greater than
2) in the first direction of the solid state imaging element and p pixels (p is a natural number equal to or greater than
2) in the second direction that crosses the first direction;
pixel addition means for performing a first-field pixel addition process of adding together electric charges of a plurality of pixels included in the plurality of pixel mixture unit areas and a second-field pixel addition process of adding together the electric charges of the plurality of pixels included in the plurality of pixel mixture unit areas based on a combination of the pixel mixture unit areas which is different from that of the first-field pixel addition process; and
output means for alternately outputting signals of the electric charges obtained in the first-field pixel addition process and second-field pixel addition process as signals for interlaced scanning.
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Abstract
A solid state imaging device of the present invention comprises a solid state imaging element which includes a plurality of photoelectric conversion elements arranged in a matrix. In the solid state imaging device of the present invention, a pixel mixture unit area includes q pixels (q is a natural number equal to or greater than 2) in the first direction of the solid state imaging element and p pixels (p is a natural number equal to or greater than 2) in the second direction that crosses the first direction. The solid state imaging device includes: means for performing a first-field pixel addition process of adding together electric charges of a plurality of pixels included in the plurality of pixel mixture unit areas and a second-field pixel addition process of adding together the electric charges of the plurality of pixels included in the plurality of pixel mixture unit areas based on a combination of the pixel mixture unit areas which is different from that of the first-field pixel addition process; and means for alternately outputting signals of the electric charges obtained in the first-field pixel addition process and second-field pixel addition process as signals for interlaced scanning.
12 Citations
20 Claims
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1. A solid state imaging device, comprising:
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a solid state imaging element including a plurality of photoelectric conversion elements arranged in a matrix, the solid state imaging element including pixels grouped into pixel mixture unit areas, each of which includes q pixels (q is a natural number equal to or greater than
2) in the first direction of the solid state imaging element and p pixels (p is a natural number equal to or greater than
2) in the second direction that crosses the first direction;pixel addition means for performing a first-field pixel addition process of adding together electric charges of a plurality of pixels included in the plurality of pixel mixture unit areas and a second-field pixel addition process of adding together the electric charges of the plurality of pixels included in the plurality of pixel mixture unit areas based on a combination of the pixel mixture unit areas which is different from that of the first-field pixel addition process; and output means for alternately outputting signals of the electric charges obtained in the first-field pixel addition process and second-field pixel addition process as signals for interlaced scanning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for driving a solid state imaging device which includes a solid state imaging element including a plurality of photoelectric conversion elements arranged in a matrix, the solid state imaging element including pixels grouped into pixel mixture unit areas, each of which includes q pixels (q is a natural number equal to or greater than 2) in the first direction of the solid state imaging element and p pixels (p is a natural number equal to or greater than 2) in the second direction that crosses the first direction, the method comprising the steps of:
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(a) adding together electric charges of pixels included in each of the pixel mixture unit areas and transferring the added electric charges in the first direction; (b) adding together electric charges of pixels from a plurality of pixel mixture unit areas while the electric charges added and transferred in the first direction at step (a) are transferred in the second direction; and (c) alternately outputting signals which relates to the electric charges added together at step (b) in first and second fields as signals for interlaced scanning. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification