Image reading unit with black level control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 6, 1990
Grant Date -
N/A
app pub date -
Aug 29, 1988
filing date -
Aug 28, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image scanner for reading images from an original document or the like less susceptible to induced noise. An image output signal from a CCD sensor is sampled and held and the black level of the resulting signal is adjusted to a desired value. The black-level-adjusted signal is converted to digital form and transmitted to an external utilization unit after its timing has been properly adjusted.
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Cited Art Landscape
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