Computer graphics processing and selective visual display system – Computer graphic processing system – Integrated circuit
Patent
1997-04-22
2000-01-04
Mengistu, Amare
Computer graphics processing and selective visual display system
Computer graphic processing system
Integrated circuit
345203, G09G 500
Patent
active
060115661
ABSTRACT:
The present invention is directed to a general purpose raster image system. The present invention performs transformations on an original raster image, and optimizes the raster image decoding and display techniques, to dramatically increase the display performance capabilities by a factor of up to fifteen times the performance provided by previous raster devices. The present invention employs two primary enhanced display features to produce fast raster image decode and display results: (1) data reduction and transformations and (2) optimized algorithmic implementations. Data reduction and transformations operate as follows: a raster image is divided into strips, which are processed individually. A feature of the optimized algorithmic implementation is to increase processing thruput of the display process by optimizing the use of available resources required to decode and display the raster images. In one embodiment, scaling operations are converted from calculation based algorithms, to data lookup tables indexed by the position of the raster image data in the original scan line. Raster image decoding algorithms are changed from iterative conditional loops to redundant code segments individually tailored for specific occurrences of raster image data. Additionally implementation of assembly language in time critical sections of display procedures allocates CPU register resources more efficiently and significantly increases performance.
REFERENCES:
patent: 4612540 (1986-09-01), Pratt
patent: 4616217 (1986-10-01), Nesbitt et al.
patent: 4783834 (1988-11-01), Anderson et al.
patent: 4897795 (1990-01-01), Yoda et al.
patent: 5091721 (1992-02-01), Hamori
patent: 5263136 (1993-11-01), DeAguiar et al.
patent: 5363119 (1994-11-01), Snyder et al.
patent: 5440346 (1995-08-01), Alattar et al.
patent: 5452235 (1995-09-01), Isani
patent: 5457776 (1995-10-01), Wong et al.
patent: 5485600 (1996-01-01), Joseph et al.
patent: 5490237 (1996-02-01), Zimmerman et al.
patent: 5502576 (1996-03-01), Ramsay et al.
Mengistu Amare
Samuels Steven B.
Sowell John B.
Starr Mark T.
Unisys Corporation
LandOfFree
System and method to display raster images with negligible delay does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method to display raster images with negligible delay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method to display raster images with negligible delay will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1076591