Patents by Inventor Stephen Hubbins

Stephen Hubbins 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).

  • Patent number: 4674086
    Abstract: A token ring access control protocol circuit which includes an M/T converter for converting incoming serial data in differential Manchester encoded form into transitional encoded form. Next the data is fed into a shift register and held temporarily while it is compared with preset sequences to determine if it is a starting delimiter or an ending delimiter. If a starting delimiter pulse is generated and used to synchronize subsequent circuitry if required. Data from the shift register is continuously sampled with at least a 2 baud delay by a data sample latch circuit which provides and output line for data values and another output line for code violation signals. The data values and code violation values go to a data receiving circuit which processes the data, and loads it onto a local data bus for transmission to other parts of a token ring control system.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: June 16, 1987
    Assignee: Texas Instruments Incorporated
    Inventors: Andre Szczepanek, Stephen Hubbins