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A Modified Composite Video Signal Generator for the Gamma 11 Computing System

SUNY Upstate Medical Center, Syracuse, New York

Correspondence: For reprints contact: Dr. Robert L. Richardson, Division of Nuclear Medicine, Upstate Medical Center, 750 E. Adams St., Syracuse, NY 13210.

ABSTRACT

Many nuclear medicine departments use the Gamma 11 computing system for image processing. In many cases, clinicians would like to display or record these images on equipment that has been designed for use with standard closed-circuit television or broadcast-type composite video signals. Unfortunately, the signals provided by the Gamma 11 differ from these standard signals in a number of important ways. The circuitry presented here converts the computer's output signals into a composite waveform that will properly drive virtually all equipment designed for closed-circuit television or standard broadcast-type applications.