Operating radiation sensors to avoid transfer loss
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United States of America Patent
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Jun 28, 1988
Grant Date -
N/A
app pub date -
Mar 4, 1987
filing date -
Mar 13, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of operating a radiation sensor, such as a charged coupled device array, having a number of radiation sensitive devices and associated transfer buffers. The method comprises (1) illuminating the radiation sensor for a predetermined duration whereby the radiation devices each store a charge relating to the total radiation incident thereon; (2) after the illumination step, transferring the stored charges to the transfer buffers; (3) reading out the charges in the transfer buffers; and, (4) repeating steps 1 to 3 until the transferred charge is substantially constant. Image scanning apparatus incorporating apparatus for performing this method is also described.
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