Video programs and technology

Certain enhancements of video signals — expansion and compression, for example — can be done by analog processing, rather than digitally. In eliminating the need for a digital processor along with its I/O printed-circuit and special software, the processor design is simplified. A circuit that logarithmically expands or compresses video signals, the video enhancement module Model 2545 is available from Optical Electronics Inc., Tucson, Ariz.