Patent References 3906194 Solid state digital running time indicator Time counting control system Particle size distribution analyzer Particle size distribution analyzer Method and apparatus for correcting coincidence errors during counting of two types of particles Non-volatile counting circuit and method which provides for extended counter life Patent #: 4663770 InventorAssigneeApplicationNo. 07/073799 filed on 07/14/1987US Classes:702/29, Particle size determination377/26Including memoryExaminersPrimary: Lall, Parshotam S.Assistant: Ramirez, Ellis B. Attorney, Agent or FirmInternational ClassG06F 17/40 (20060101)AbstractApparatus for categorizing and accumulating a plurality of different event types wherein the characteristics of each event are detected by a detector and presented to the apparatus as an electrical signal of variable analog or digital value which may indicate the type, speed, energy level or the like of an event. The apparatus includes a table look-up storage device having a plurality of individually addressable memory locations which receives the electrical or digital value and in response thereto outputs a bin address or clock select number which identifies a particular bin. Clock distribution logic circuitry receives the bin address from the look-up table storage device and in accordance with the bin address selects a particular bin and increments the event count being accumulated therein. Counter select logic circuitry is also provided for use by a host computer or the like to select a particular bin and output the event count being accumulated in the selected bin. The event count is output in a stabilized form by an output multiplexer circuit for analysis, record keeping, monitoring or the like. | |