Video Resolution Enhancer
Original Publication Date: 1984-Aug-01
Included in the Prior Art Database: 2005-Feb-04
A video resolution enhancer converts a grey level picture of given resolution to an approximate binary picture of 16 times the spatial distribution, the conversion being done on a pixel (picture element) to pixel basis in realtime. The video resolution enhancer takes a field of nine pixels from the video system and expands the center pixel into a four-by-four matrix. The heart of the enhancer is a resistor matrix in which the sum voltage of all the nodes is constant. This is achieved through an arrangement of current injectors that convert the surrounding pixel's relative voltage into a distributed network of active current source.