Digital Multiplexed Video and Synchronization for Pulse-Stretched Signals
Original Publication Date: 1987-Feb-01
Included in the Prior Art Database: 2005-Jan-31
This article describes a circuit arrangement which provides compensation for pulse-width distortion while simultaneously multiplexing digital video and synchronization signals over a fiber-optic link. Presently available display systems have parallel digital interconnections that use multiple conventional wire cables to interface a (Image Omitted) controller and a display. Fig. 1 shows a typical connection for a monochrome wire cable link interfacing between a controller and a CRT display for a specific monochrome CRT. Two separate coaxial cables and one unshielded wire are used for video, horizontal sync and vertical sync, respectively. It is desirable to electrically isolate the controller and display to reduce electromagnetic interference by using cost effective fiber-optic devices and cable.