Communication controller using multiported random access memory
Patent 4604683 Issued on August 5, 1986. Estimated Expiration Date: 
December 10, 2004. 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.
December 10, 2004. 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 Data communications subsystem Data distribution interface Dynamic disk buffer control unit Apparatus using a decision table for routing data among terminals and a host system Communication multiplexer having dual microprocessors Patent #: 4488231 InventorsAssigneeApplicationNo. 06/679809 filed on 12/10/1984US Classes:710/100INTRASYSTEM CONNECTION (E.G., BUS AND BUS TRANSACTION PROCESSING)ExaminersPrimary: Heckler, Thomas M.Attorney, Agent or FirmInternational ClassesG06F 13/36 (20060101)G06F 15/16 (20060101) G06F 13/16 (20060101) G06F 13/40 (20060101) G06F 13/12 (20060101) G06F 13/18 (20060101) G06F 15/173 (20060101) AbstractA communication controller for facilitating bidirectional digital data transfers between a host processor and various types of networks. The controller architecture is characterized by multiple independent data transfer buses coupled to a central multiple port random access memory. The architecture avoids microprocessor bus contention in favor of RAM contention and thus enhances aggregate system throughput. Moreover, the buses are capable of performing operations concurrently to thereby further enhance system throughput. | |
