Patents by Inventor Jim CONYNGHAM

Jim CONYNGHAM 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).

  • Apparatus and method for high-precision compute of log1p( )
    Patent number: 10970045
    Abstract: Inventive aspects include a high-precision log 1p( ) compute logic section of a computing machine to approximate a function F(x)=log 1p(x)=ln(x+1), using an estimation function E(x), and to at least: (i) receive an input x, (ii) compute (x+1) using only native precision, (iii) compute an integer N such that: 4/32N?1?(x+1)? 4/32N, (iv) compute ƒN(x)=Sx+(S?1) where S=2?N, (v) compute E(ƒN(x)), and (vi) return a value v=E(ƒN(x))+N ln(2) as an approximation of F(x)=log 1p(x).
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 6, 2021
    Inventor: Jim Conyngham
  • APPARATUS AND METHOD FOR HIGH-PRECISION COMPUTE OF LOG1P()
    Publication number: 20200192635
    Abstract: Inventive aspects include a high-precision log 1p( ) compute logic section of a computing machine to approximate a function F(x)=log 1p(x)=ln(x+1), using an estimation function E(x), and to at least: (i) receive an input x, (ii) compute (x+1) using only native precision, (iii) compute an integer N such that: 4/32N?1?(x+1)? 4/32N, (iv) compute ƒN(x)=Sx+(S?1) where S=2?N, (v) compute E(ƒN(x)), and (vi) return a value v=E(ƒN(x))+N ln(2) as an approximation of F(x)=log 1p(x).
    Type: Application
    Filed: February 13, 2019
    Publication date: June 18, 2020
    Inventor: Jim CONYNGHAM