Packet data communication system with ring type transmission line
Patent 4809267 Issued on February 28, 1989. Estimated Expiration Date: 
June 29, 2007. 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.
June 29, 2007. 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 ReferencesInterface arrangement for a telephone system or the like Write token regeneration in a timed token ring Prioritized data packet communication Patent #: 4623886 InventorsApplicationNo. 07/067231 filed on 06/29/1987US Classes:370/460, On ring or loop network370/463Details of circuit or interface for connecting user to the networkExaminersPrimary: Griffin, Robert L.Assistant: Chin, Wellington Attorney, Agent or FirmInternational ClassesH04L 12/427 (20060101)H04L 12/43 (20060101) Foreign Application Priority Data1986-06-27 JPAbstractA packet data communication system with a ring-type transmission line circulates a predetermined number of slots in which packets to be transmitted are loaded. The system includes interface nodes, provided on the ring-type transmission line, for loading packets on slots and receiving packets from slots for terminals connected thereto. In each interface node, there are a predetermined number of sub-transmission lines, for passing each of slots in parallel through the interface node, terminal interfaces each having a plurality of sending buffers for storing packets and a plurality of receiving buffers for storing packets, and a switch for connecting each of the sending buffers and receiving buffers to any one of the sub-transmission lines. | |
