A Slide Scanner Input for Paramatrix

摘要

A special purpose flying-spot slide scanner was designed to provide an efficient and flexible means for transmitting an input pattern to Paramatrix, a pattern processing computer. The light spot of a CRT is positioned by the 'horizontal' and 'vertical' outputs of the Paramatrix Transformer opposite a test point on the input slide. The presence or absence of light behind the slide is detected by a photomultiplier, and an appropriate logic signal is generated which is used to either light or not light a bulb in the output matrix. Variable horizontal and vertical sensitivity controls have been incorporated into the scanner system. In this manner test points that are 'near' line segments of the input pattern are considered to be part of the input pattern. This feature allows for thinning and thickening the lines of the output pattern. (Author)