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:
Feb. 03, 2009
Filed:
May. 30, 2007
David J Clark, Warwick, GB;
Michael F Cowlishaw, Coventry, GB;
David J Clark, Warwick, GB;
Michael F Cowlishaw, Coventry, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A data processing apparatus uses numeric processing. A corrective mechanism enables a method for performing accurate integer divisions to be derived from an approximate division method which does not, of itself, always produce an accurate result but for which the range of errors is known. By applying the corrective mechanism to a suitable approximate division method, a numeric processing mechanism performs the integer division operation efficiently. An approximate division method that uses rapid operations for fast integer division, and thus has a small possible range of errors, is used to enable the correction method to be completed rapidly.