Electric signal processing circuit employing capacitively scanned phototransistor array

摘要: A signal processing circuit employing an array of photodetector elements, with each element including a phototransistor having capacitor coupled to the base region. The base-collector junction integrates incident light flux in response electromagnetic input, while emitter-base diode serves as switch when is sampled, provide electric output representative integrated light. provides charge storage during period between integration and sampling.