Color image signal generator and storage medium
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United States of America Patent
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Jun 26, 2001
Grant Date -
N/A
app pub date -
Feb 26, 1999
filing date -
Jul 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A color image signal generator is provided for generating red, green and blue analog image signals based on first red, green and blue image data and on first brightness data. Each of the first red, green and blue image data has a predetermined first bit number, while the first brightness data has a predetermined second bit number. The color image signal generator includes a brightness data modifier for providing second brightness data based on the first brightness data, so that the second brightness data has a predetermined third bit number which is greater than the second bit number. The color image signal generator also includes a data multiplier arranged to multiply the second brightness data with the first red, green and blue image data. As a result of multiplication, second red, green and blue image data are output, so that each of the second image data has a fourth bit number which is greater than the first and the third bit numbers. The color image signal generator further includes a digital-to-analog converter for converting predetermined top bits of each of the second image data into analog signals.
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