A pipelined, parallel architecture for processing time-coincident data

A pipelined parallel architecture for processing time-coincident data is described. The data to be processed are from a ring of positron emission detectors and are used for tomography. The architecture consists of an array of identical modules to determine if opposing detectors have detected a positron event. This requires a large number of internal connections and is practical only in VLSI. By implementing this architecture in VLSI, the size and cost of existing circuitry is reduced, along with the length requirements for an expensive high-speed cable