Solid-state image pickup device and drive method thereof

A driving method, solid-state imaging technology, applied in image communication, signal generator with a single pickup device, picture signal generator, etc., can solve problems such as increased folding noise
CN1774935AInactive Publication Date: 2006-05-17SONY GRP CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SONY GRP CORP
Publication Date
2006-05-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

If pixel reading is simply skipped while keeping the pixel information order and spatial positional relationship the same as in the read-all-pixels mode, the distance between the read-out pixels increases. Thus reducing the Nyquist frequency and increasing the folding noise. A 5×5 pixel block is used as a unit pixel block. The pixel information in the first, third and fifth rows of the first, third and fifth columns of the pixel arrangement is added as an output of the ath row and ath column of the unit pixel block and output. The pixel information of the first, third and fifth rows of the sixth, eighth and tenth columns of the pixel arrangement is added as an output of the ath row and bth column of the unit pixel block and output. Addition and output are repeated in the same manner until the last row or a row close to the last row. Afterwards, the pixel information of the sixth, eighth and tenth rows of the first, third and fifth columns are added together as the output of the bth row and ath column of the unit pixel block and output. Similar operations are repeated so that sparse addition is repeated for readout of all arbitrary pixels.
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Description

technical field

[0001] The present invention relates to a solid-state imaging device and a driving method thereof, in particular to a solid-state imaging device using an X-Y addressable solid-state imaging device and a driving method thereof. Background technique

[0002] Solid-state imaging devices are roughly classified into charge-transfer solid-state imaging devices represented by, for example, CCD (Charge Coupled Device) image sensors and X-Y addressable solid-state imaging devices represented by, for example, CMOS (Complementary Metal Oxide Semiconductor) image sensors. Such solid-state imaging devices are used in various video devices, such as video cameras for taking moving images and electronic cameras for taking still images, as imaging devices therein.

[0003] Conventionally, when a CCD image sensor is used as an imaging device in a 1CCD color camera, in so-called pixel skipping processing for skipping pixel information, for example, a method of reading out all p...

Claims

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