Television – Image signal processing circuitry specific to television – Color balance or temperature
Reexamination Certificate
2006-03-28
2006-03-28
Lee, Michael H. (Department: 2614)
Television
Image signal processing circuitry specific to television
Color balance or temperature
Reexamination Certificate
active
07019789
ABSTRACT:
An apparatus and a method for use in a color display system, for calculating a color temperature. The apparatus for calculating color temperature includes a color temperature selecting portion for selecting a left color temperature and a right color temperature that are most adjacent to a one-dimensional chroma inputted from a mapping table, the mapping table consisting of chroma and color temperature, a distance calculating portion for calculating distance between the selected left color temperature and the inputted one-dimensional chroma, and between the selected right color temperature and the inputted one-dimensional chroma, respectively, and a color temperature calculating portion for calculating a color temperature corresponding to the one-dimensional chroma inputted in accordance with a ratio of the calculated distance. Accordingly, the apparatus and method can be established using little hardware since the color temperature is calculated at a one-dimensional level.
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patent: 08-065701 (1996-03-01), None
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patent: 2000-111983 (2000-04-01), None
patent: 2000-148978 (2000-05-01), None
Jang Geun-sik
Kang Bong soon
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