Patents by Inventor R. Vaughn Langston

R. Vaughn Langston 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).

  • Method and system for a full-adder post processor for modulo arithmetic
    Patent number: 7194088
    Abstract: A full-adder post processor performs modulo arithmetic. The full-adder post processor is a hardware implementation able to calculate A mod N, (A+B) mod N and (A?B) mod N. The processor includes a full adder able to add the operands A and B while modulo reduction is accomplished in the processor by successively subtracting the largest possible multiple of the modulus N obtainable by bit shifting prior to subtraction.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: March 20, 2007
    Assignee: Corrent Corporation
    Inventors: R. Vaughn Langston, Richard J. Takahashi, Gregg D. Lahti
  • Method and system for a full-adder post processor for modulo arithmetic
    Publication number: 20030031316
    Abstract: A full-adder post processor performs modulo arithmetic. The full-adder post processor is a hardware implementation able to calculate A mod N, (A+B) mod N and (A−B) mod N. The processor includes a full adder able to add the operands A and B while modulo reduction is accomplished in the processor by successively subtracting the largest possible multiple of the modulus N obtainable by bit shifting prior to subtraction.
    Type: Application
    Filed: October 4, 2001
    Publication date: February 13, 2003
    Inventors: R. Vaughn Langston, Richard J. Takahashi, Gregg D. Lahti