Patent ID: 6072462
Filing Date: 2000-06-06
Classification: H04N

Abstract:
A method for generating a video character in an on screen display system, said character being suitable for display on a video image display screen, said system including a microprocessor having a clock input, said system further including a plurality of logic circuits in communication with said microprocessor, said plurality of logic circuits including a character generator ROM for producing display pixels representing video characters to be displayed, a plurality of data storage registers, and a video pattern generator circuit for converting video data into a format compatible for use with said video image display screen, said method comprising the steps of:(a) retrieving from the character generator ROM display pixels representing the character to be displayed, and(b) utilizing said microprocessor to control transfer of said retrieved display pixels from the character generator ROM to said pattern generator circuit, said utilizing step including the steps of storing at least a portion of said retrieved display pixels in the microprocessor, and providing said stored display pixels from the microprocessor to the pattern generator circuit to thereby enable said character to be displayed on the display screen.