Signal processing apparatus
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United States of America Patent
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Feb 5, 2008
Grant Date -
Mar 24, 2005
app pub date -
Sep 15, 2004
filing date -
Sep 24, 2003
priority date (Note) -
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Abstract
A signal processing apparatus including a clamp pulse generation circuit for generating a clamp pulse in synchronization with an image signal, a clamp circuit for clamping a signal of a black reference value in response to the clamp pulse, and a defect detection circuit for detecting a defective pixel included in an optical black area, wherein the clamp pulse generation circuit cancels a rise of the clamp pulse when a position of the defective pixel detected by the defect detecting circuit and a position of a rise state of the clamp pulse overlap with each other.
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