Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1996-08-19
1999-11-02
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345132, 345131, 348 42, 382197, G09G 500, H04N 1300
Patent
active
059779470
ABSTRACT:
The present invention provides a method and apparatus for resizing a video image. In a preferred embodiment of the invention, an adapter having a bilinear filter is provided. The bilinear filter contains two first-in first-out (FIFO) memory devices for storing the video image and a vertical and horizontal filters for vertically and horizontally resizing the image. To resize the image, the video data representing the image is transferred to the graphics adapter in M.times.M arrays of pixel data. Each one of the (FIFO) memory devices has the capacity of storing one row of pixel data at a time. Adjacent rows are stored in the FIFO devices for vertical interpolation by the vertical filter. The oldest row in the FIFO devices is replaced by a new row for further interpolation. As each row is transferred to the horizontal filter, intermediate pixels are generated. In another embodiment, extra storage devices are used to hold data elements for interpolating between every two adjacent horizontal blocks.
REFERENCES:
patent: 5019903 (1991-05-01), Dougall et al.
patent: 5355328 (1994-10-01), Arbeiter et al.
patent: 5406306 (1995-04-01), Siann et al.
patent: 5410616 (1995-04-01), Kidd
patent: 5438654 (1995-08-01), Drebin et al.
patent: 5469222 (1995-11-01), Sprague
patent: 5475437 (1995-12-01), Song
patent: 5657047 (1997-08-01), Tarolli
patent: 5784047 (1998-07-01), Cahill, III et al.
Emile Volel
Hjerpe Richard A.
International Business Machines Corp.
Tran Henry N.
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