04580134 is referenced by 161 patents and cites 46 patents.

A method of generating a color video display comprises the steps of dividing a color image to be displayed into a matrix of blocks, each block comprising a matrix of pixels; storing data identifying a multiplicity m of different colors, the data being stored in a color map memory having a unique address for the data identifying each different color; selecting different pairs of the m colors for different blocks of the color image to be displayed; generating a pixel data bit for each pixel in each of the different blocks, the value of each pixel data bit identifying one of the pair of colors selected for the block in which the corresponding pixel is located; generating different pairs of binary numbers representing the color map memory addresses of the different pairs of the m colors selected for different blocks; reading out of the color map memory the stored data representing the particular color selected for each pixel, in response to the data bit for that pixel and the corresponding one of said binary numbers representing the address of one of the colors selected for the block containing that pixel; and using the data read out of the color map memory to generate a video display comprised of pixels having the selected colors as identified by the data read out of the color map memory.

Title
Color video system using data compression and decompression
Application Number
6/442024
Publication Number
4580134
Application Date
November 16, 1982
Publication Date
April 1, 1986
Inventor
Thomas A DeFanti
Chicago
IL, US
Graham M Campbell
DeKalb
IL, US
Agent
Leydig Voit & Mayer
Assignee
Real Time Design
IL, US
IPC
G09G 1/28
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