Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2006-09-12
2006-09-12
Tung, Kee M. (Department: 2676)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S428000, C345S581000, C345S606000, C345S555000, C382S254000, C382S260000, C382S300000
Reexamination Certificate
active
07106352
ABSTRACT:
A filtering engine may read samples from a sample buffer and spatially filter (e.g., convolve) the samples to generate pixels. The pixels may have a high dynamic range of luminance. Thus, the filtering engine may apply automatic gain control and/or dynamic range compression on pixel luminance or pixel color. A rendering engine may generate the samples in response to received graphics data and store the samples in the sample buffer. A sample may include one or more data fields which represent color (or intensity) information. The data field may include exponent information (e.g., an amplification control bit) and a mantissa. The exponent information may determine an extent to which the mantissa is amplified (e.g., left shifted) in the filtering engine.
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Brightwell Mark K.
Hood Jeffrey C.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Sajous Wesner
Sun Microsystems Inc.
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