Patents by Inventor Thomas C. Ralya

Thomas C. Ralya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for generating a time reference value in the MAC layer of an ISO/OSI communications model among a plurality of nodes
    Patent number: 5386542
    Abstract: A Time Reference Manager for providing a time reference value to the nodes of a ring topology local area network. A time reference is implemented on a distributed system data bus at a low level interface to provide highly accurate time reference values at each node of the LAN with no settling time required. One node on the network is designated as the Time Reference Manager and broadcasts the Time Reference Protocol data around the ring of the LAN network. Time delay correction is provided by an algorithm performed in a time reference software process. Clock accuracy is selectable by the number of bits used in the clock-counter.
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: January 31, 1995
    Assignee: International Business Machines Corporation
    Inventors: J. Joseph Brann, Thomas C. Ralya