Patents by Inventor Susan K. Avery

Susan K. Avery 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).

  • High speed adder
    Patent number: 4897809
    Abstract: An improved cascadable adder (11) which, through the use of merged logic, provides high speed operation in the presence of input loading and internal fan-out limitations. The invention may be implemented in gallium arsenide technology and includes a first circuit (13) for exclusive ORing first bits (A.sub.1, B.sub.1) of first and second digital words (A, B) respectively; and a second circuit (37) operatively connected to the first circuit (13) for generating, with only two gate delays, a carry (C.sub.1) associated with the summing of the first bits.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: January 30, 1990
    Assignee: Hughes Aircraft Company
    Inventors: Iradj Shahriary, George S. Des Brisay, Jr., Susan K. Avery