Abstract: An active sensor apparatus includes an array of sensor elements arranged in a plurality of columns and rows of sensor elements. The sensor apparatus includes a plurality of column and row thin film transistor switches for selectively activating the sensor elements, and a plurality of column and row thin film diodes for selectively accessing the sensor elements to obtain information from the sensor elements. The thin film transistor switches and thin film diodes are formed on a common substrate.
Abstract: A decoder for sequentially enabling outputs in response to clock signal inputs is described including X number of logic stages corresponding to X number of outputs of the decoder. Each of the logic stages has a plurality of inputs, wherein each logic stage includes fewer than log2X inputs for receiving the clock signal inputs.
Abstract: Apparatus for measuring a pattern in a surface of an object, comprising a plurality of pixel or sensor elements being responsive to a physical parameter of the object surface, and means for establishing an overall, segmented picture related to said pattern, and also comprising at least one diode functionally associated with each sensor element for contributing to one or more of the following functions: selectively addressing said sensor element activating said sensor element, and sensing of said physical parameter.