Patents by Inventor Evelyn M. Fields

Evelyn M. Fields 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).

  • Most significant digit location
    Patent number: 4758974
    Abstract: After performing a floating point addition, it is desired to normalize the sum; that is, shift the most significant digit of the mantissa into the left-most digit location, and adjust the exponent accordingly. Prior art techniques required performing the addition before calculating the number of shifts required. The present technique determines an approximate shift from the addends during addition, resulting in a significant time saving.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: July 19, 1988
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Evelyn M. Fields, Ronald L. Freyman, Yehuda Rotblum