Patents by Inventor Mark Bagula

Mark Bagula 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: 4622630
    Abstract: In a data processing system which uses a common bus for communication of address and data information among a plurality of system components, a bus timing technique uses a clock signal having a transfer time period which comprises a plurality of subperiods which requires address transfer to take place during a first selected group of subperiods and data to be transferred during a second selected group of subperiods with idle subperiods in between. A first control signal is generated by the data receiving or data supplying unit in order to inhibit access to the bus until such transfer is completed and a second control signal can be provided to lock-in bus access by such unit if desired for more than one transfer period. Appropriate priority is arranged for bus access among selected system components whether the common bus system has a single bus for use with a single port memory or a dual bus for use with a dual port memory.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: November 11, 1986
    Assignee: Data General Corporation
    Inventors: Chandra R. Vora, Michael L. Ziegler, Mark Bagula, Steve Hamilton