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Low-Cost Analog Drive Circuit for Monochrome Analog Cathode Ray Tube Displays

IP.com Disclosure Number: IPCOM000035096D
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Baldwin, DM DeMoor, MK [+details]

Abstract

There have been developed Analog Cathode Ray Tube (CRT) Controllers for controlling video CRT output. These controllers consist mainly of gate arrays, memory, and a Video Digital-to-Analog Converter (DAC). The controllers will drive both color and monochrome CRT's. In one color application, the Video DAC provides extensive control of display colors, allowing the use of 256 colors similtaneously. In the monochrome application, the Video DAC allows the use of 64 shades of gray.