Video capture computer system using local memory for texture map

Details Video capture computer system using local memory for texture map Video capture computer system using local memory for texture map

1995-10-26

1998-06-30

Kim, Matthew M.

Computer graphics processing and selective visual display system

Computer graphic processing system

Plural graphics processors

345507, 345509, 345512, 345430, 345425, G06F 1516

Patent

active

057741328

ABSTRACT:
A graphic apparatus is connected between a host computer and a monitor for admitting video data from a video source to display a picture on the monitor according to commands from the host computer. The graphic apparatus is constructed by a local memory, an admitting unit, a driver unit and a drawing tool. The local memory is provided separately from the host computer, and is functionally divided into a video memory area for storing video data including those representing a graphic pattern and a frame memory area for storing video data representing a picture to be displayed. The admitting unit operates in response to an admission command from the host computer for admitting video data from the video source and reserving the admitted video data in the video memory area. The driver unit operates in response to a drive command from the host computer for transferring the video data from the frame memory area to the monitor so as to display the picture. The drawing tool responds to a drawing command from the host computer for setting a first region within the video memory area to cut out a desired graphic pattern, for setting a second region within the frame memory area to define a desired space in the picture, and for transferring the video data from the first region to the second region to fill the space of the picture by the graphic pattern.

REFERENCES:
patent: 4970666 (1990-11-01), Welsh et al.
patent: 5335321 (1994-08-01), Harney et al.
patent: 5432900 (1995-07-01), Rhodes et al.
patent: 5511153 (1996-04-01), Azaebayejani et al.

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