Image pickup apparatus having a CPU driving function operable in two modes
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United States of America Patent
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Sep 30, 2003
Grant Date -
N/A
app pub date -
Sep 28, 1998
filing date -
Sep 30, 1997
priority date (Note) -
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Abstract
In an image pickup apparatus comprising a CCD image pickup device made up of a plurality of pixels constituted by photodiodes which are two-dimensionally arrayed, a vertical register and a horizontal register, and a CPU for driving and controlling the CCD image pickup device, the CPU has a driving function in an all-pixel read mode for reading pixel signals from all the pixels of the CCD image pickup device, a driving function in a thinning (skipping) read mode for reading pixel signals from all the pixels in a thinned-out fashion, and a device shutter function for extracting signal electric charges from each pixel to control an exposure time. In the thinning read mode, the operation of extracting the signal electric charges from each pixel is carried out one or more times for each read period of one frame.
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