Computer graphics processing and selective visual display system – Computer graphics display memory system – For storing compressed data
Reexamination Certificate
2006-10-04
2011-12-27
Wu, Xiao M. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
For storing compressed data
C345S556000, C345S547000, C382S166000
Reexamination Certificate
active
08085274
ABSTRACT:
Systems and methods for compressing data within a block of data for storage in memory and for transmission along a data path are described herein. By utilizing previously unused bits in data words, the valid data can be stored more efficiently and transmitted in fewer transfer cycles, thereby increasing the availability of the data bus to other masters. One embodiment of a system for storing and transmitting compressed data includes masters and slaves interconnected by a data bus. One of the masters is a video input interface configured to receive video data from an external video source. The video input interface is further configured to compress the video data using a compression algorithm based on the difference in color between two adjacent pixels. Another one of the masters is a video display controller configured to receive the compressed video data. Also, the video display controller is configured to decode the compressed video data to restore the video data to its original form for transmission to an external video display.
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Thomas Kayden Horstemeyer & Risley LLP
VIA Technologies Inc.
Welch David T
Wu Xiao M.
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