Storage and Transmission Bandwidth Reduction for High Resolution Color and Monochrome Displays
Original Publication Date: 1980-Aug-01
Included in the Prior Art Database: 2005-Feb-13
In a computer driven CRT graphic display terminal, the picture on the CRT screen is typically composed from a matrix of programmable symbol (PS) cells each consisting of M x N displayable points. A mapped code point store contains one code for each PS cell position on the screen. During refresh of the screen display, the PS codes are read sequentially from the code point store and then used to access a PS store which produces a serialized bit pattern for point to point display of picture elements (pels) on the screen. If features such as color or bright-up are to be provided, then attributes defining the feature must be associated with the corresponding locations on the screen.