Method and apparatus for displaying video data on a computer dis

Details Method and apparatus for displaying video data on a computer dis Method and apparatus for displaying video data on a computer dis

1995-05-04

1996-09-17

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345191, 345115, G09G 536

Patent

active

055573029

ABSTRACT:
A method and apparatus for displaying video data on a computer display. Video data is digitized at a video rate and displayed at a different (higher) rate. The digitized video data is provided to the computer memory along with the computer-generated display data. Thus, the video data is part of the windowing environment and can be manipulated like any other window on the display screen. The video data can be arbitrarily sized and is not limited by the input format. The video input is provided to the computer system as a video stream. Next, the video data is resampled and converted from, e.g., the NTSC standard 640.times.480 array into an N.times.M array where N is less than or equal to 640, and M is less than or equal to 480. The video data is then selectively stored in the computer memory with the computer display data by referencing a bit map in the computer memory, producing a region of pixel data that is fully compatible with other windows in the windowing environment.

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