The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2005
Filed:
Mar. 26, 2002
Applicant:
David W. Matula, Dallas, TX (US);
Inventor:
David W. Matula, Dallas, TX (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F007/38 ;
U.S. Cl.
CPC ...
Abstract
An apparatus and method are disclosed for minimizing accumulated rounding errors in coefficient values in a lookup table for interpolating polynomials. Unlike prior art methods that individually round each polynomial coefficient of a function, the method of the present invention use a 'ripple carry' rounding method to round each coefficient using information from the previously rounded coefficient. The 'ripple carry' method generates rounded coefficients that significantly improve the total rounding error for the function.