Digitally-controlled TV camera - uses digital signals converted into analog signals and logic system for scanning secondary electron vidicon

摘要

The image coder for a secondary electron vidicon for a digitally controlled camera uses two d.a. converters between the camera tube and a memory and control unit. An a-d converter is included in a return path. The control unit receives signals from a set of control switches. - The logic system of the memory is connected to a word counter and also an X and Y register and a fault register. The converters are used to enable digital control signals in pairs which include two Cartesian coordinates to be converted to analog control signals to control the side deflection.