Communications controller central processing unit board
Patent 5475818 Issued on December 12, 1995. Estimated Expiration Date: 
May 26, 2014. 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.
May 26, 2014. 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 ReferencesCommunication control unit Adapter cluster module for data communications subsystem Collection of messages from data terminals using different protocols and formats Modem diagnostic and control system Global serial channel for microcontroller Apparatus and method for extending a parallel synchronous data and message bus Patent #: 4961140 InventorsAssigneeApplicationNo. 250866 filed on 05/26/1994US Classes:709/208, MASTER/SLAVE COMPUTER CONTROLLING701/20, Railway vehicle speed control709/253, BUSED COMPUTER NETWORKING710/315Different protocol (e.g., PCI to ISA)ExaminersPrimary: Eng, David Y.Attorney, Agent or FirmInternational ClassG06F 015/17AbstractA microprocessor based data communications controller board includes at least one microprocessor and is for controlling communications over a plurality of busses having different electrical specifications and using different communications procedures. The board includes a first interface for interfacing the microprocessor based data communications controller board with a first communications bus providing a multidrop serial master-slave synchronous data link controlled communications system. The board also includes a second interface for interfacing the microprocessor based data communications controller board with at least one second communications bus providing a Manchester encoded multidrop master-slave high-level data link controlled communications system. And the board also includes a third interface for interfacing the microprocessor based data communications controller board with a third communications bus providing a parallel processor-to-processor message passing communications system.Other References
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