Patents by Inventor Son T. Dao

Son T. Dao 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).

  • UNDERFLOW/OVERFLOW DETECTION PRIOR TO NORMALIZATION
    Publication number: 20150378679
    Abstract: Methods and apparatuses for generating a condition code for a floating point number operation prior to normalization. A processor receives an intermediate result for an operation, wherein the intermediate result comprises an intermediate significand and an intermediate exponent. A processor determines a mask based on the value of the intermediate exponent. A processor generates a masked significand by applying the mask to the intermediate significand. A processor generates a condition code based on the masked significand having a predetermined value.
    Type: Application
    Filed: December 17, 2014
    Publication date: December 31, 2015
    Inventors: Son T. Dao, Silvia Melitta Mueller
  • Residue calculation with built-in correction in a floating point unit positioned at different levels using correction values provided by multiplexer
    Patent number: 8352530
    Abstract: A residue generator for calculation and correction of a residue value. The residue generator includes a residue-generation tree connected with an operand register at an input of the residue generator including a plurality of register-bits receiving and carrying bits of numerical data.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: January 8, 2013
    Assignee: International Business Machines Corporation
    Inventors: Son T. Dao, Juergen G. Haess, Michael Klein, Michael K. Kroener
  • RESIDUE CALCULATION WITH BUILT-IN CORRECTION IN A FLOATING POINT UNIT
    Publication number: 20100146027
    Abstract: A residue generator for calculation and correction of a residue value. The residue generator includes a residue-generation tree connected with an operand register at an input of the residue generator including a plurality of register-bits receiving and carrying bits of numerical data.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 10, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Son T. Dao, Juergen G. Haess, Michael Klein, Michael K. Kroener