Patents by Inventor James A. Rocke

James A. Rocke 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).

  • Enhanced frame utilization for CSMA/CD communication protocol
    Patent number: 4954965
    Abstract: In a CSMA/CD communication protocol, data to be sent from one device on a communication network to another is put into frames, or predetermined sized pieces of information. One of the fields in a frame, the pad field, is used to make the total size of the frame large enough to ensure that a collision anywhere in the network with another frame is detected by the senders. The pad field is further used to identify when a data record will be continued in the next frame and also to identify when multiple data records are being sent in the same frame.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: September 4, 1990
    Assignee: International Business Machines Corporation
    Inventors: John M. Johnson, James A. Rocke, Divakara K. R. Udupa