Patents by Inventor Douglas J. Gorny

Douglas J. Gorny 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: 5642061
    Abstract: An apparatus and method for providing short circuit current free dynamic logic building blocks comprising P-logic and N-logic dynamic domino building blocks having separate clocks for driving the P-logic and N-logic evaluate and pre-charge stages. The P-logic building gates are pre-charged to a zero volt output and upon the transition from high to low on the input line, will provide a high output during the evaluation cycle. Conversely, the N-logic building blocks are pre-charged with a high output level and upon the transition of a low to high input to the building block device, will provide a low output signal during the evaluation period. Both building block types are pre-charged again at the end of the evaluation period to provide an inherently glitch-free dynamic logic device. Separate evaluate and charge clock signals are provided to each of the P-logic and N-logic building blocks which are configured to provide a non-overlapping charge and evaluation cycle.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: June 24, 1997
    Assignee: Hitachi America, Ltd.
    Inventor: Douglas J. Gorny
  • Patent number: 5381360
    Abstract: A modulo addition circuit generates a sequence of values within a specified range having a lower bound value and an upper bound value. The modulo addition circuit generates a first value by adding a displacement value to a previously defined starting value, and generates a second value by adding to or subtracting from the first generated value a modulo value. Both the first and second values are generated in a single computational cycle using a single address circuit. When the first generated value is in the range defined the lower bound and upper bound values, the modulo addition circuit outputs the first value; otherwise the modulo addition circuit outputs the second generated value. The value output by the modulo addition circuit is stored in a register so as to be available as the starting value in a next computational cycle.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: January 10, 1995
    Assignee: Hitachi America, Ltd.
    Inventors: Avadhani Shridhar, Douglas J. Gorny