Computer graphics processing and selective visual display system – Computer graphic processing system – Integrated circuit
Patent
1995-12-12
1999-10-26
Brier, Jeffery
Computer graphics processing and selective visual display system
Computer graphic processing system
Integrated circuit
348420, 358445, G09G 500, H04N 566, H04N 140
Patent
active
059737077
ABSTRACT:
A scan converting method of converting image data from a raster sequence scan to a block sequence scan to divide the image data into blocks each having predetermined vertical width and lateral width and converting the image data from the block sequence scan to the raster sequence scan. One block buffer having a size in which a vertical width is set to the vertical width of the block and a lateral width is set to the horizontal width of the raster is used. Raster data by the raster sequence scan is written into the block buffer. The block data by the block sequence scan is read out. The block data is written and the raster data is read out. Upon conversion from the raster sequence scan to the block sequence scan, the block buffer is read out by the block sequence scan, the raster data is written into empty addresses which are caused by the reading, and the read address by the next block sequence scan is obtained by a predetermined arithmetic operation on the basis of the order of writing. Upon conversion from the block sequence scan to the raster sequence scan, the block buffer is read out by the raster sequence scan, the block data is written into empty addresses which are caused by the reading, and the read address by the next raster sequence scan is obtained by a predetermined arithmetic operation on the basis of the order of writing.
REFERENCES:
patent: 4933763 (1990-06-01), Chantelou
patent: 5226093 (1993-07-01), Iwase
patent: 5337049 (1994-08-01), Shimoda
patent: 5359694 (1994-10-01), Concordel
patent: 5446560 (1995-08-01), Schwartz
patent: 5504842 (1996-04-01), Gentile
patent: 5563662 (1996-10-01), Kishi
Bell Paul A.
Brier Jeffery
Canon Kabushiki Kaisha
LandOfFree
Scan converting method and apparatus for raster to block and blo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scan converting method and apparatus for raster to block and blo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scan converting method and apparatus for raster to block and blo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-769988