Function-distributed control apparatus
Patent 4953074 Issued on August 28, 1990. Estimated Expiration Date: 
July 6, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 6, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesAsynchronous dual function multiprocessor machine control Numerical control system for machine tools Programmable control system for controlling at least two parameters in a predetermined sequence using both analog and digital control signals Digital controller Decentralized master-slave control apparatus Patent #: 4803613 InventorsAssigneeApplicationNo. 215805 filed on 07/06/1988US Classes:700/3Master-slaveExaminersPrimary: Ruggiero, JosephAttorney, Agent or FirmInternational ClassesG06F 015/46G06F 015/16 Foreign Application Priority Data1987-07-08 JPAbstractA function-distributed control apparatus comprises a first bus, a second bus, and at least one base processor element which includes a first main processing unit connected to at least the first bus, a second main processing unit connected to at least the second bus, and a dual-port memory with a mutual interrupt circuit connected to both these main processing units for communications between them. The first bus and the first main processing unit are chiefly for intelligent processing required for controlling a machine, while the second bus and the second main processing unit are chiefly for motion control of the machine. Those buses are also connected to various intelligent subsystems each including a processing unit and a dual-port memory with a mutual interrupt circuit for communications with the base processor element.Other References
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