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.

Date of Patent:
May. 24, 2016

Filed:

Sep. 19, 2013
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Klaus M. Kroener, Boeblingen, DE;

Christophe J. Layer, Grenoble, FR;

Silvia M. Mueller, Boeblingen, DE;

Kerstin Schelm, Boeblingen, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/38 (2006.01); G06F 17/10 (2006.01); G06F 7/535 (2006.01); G06F 7/537 (2006.01);
U.S. Cl.
CPC ...
G06F 17/10 (2013.01); G06F 7/535 (2013.01); G06F 7/5375 (2013.01);
Abstract

An arithmetic operation in a data processing unit, preferably by iterative digit accumulations, is proposed. An approximate result of the arithmetic operation is computed iteratively. Concurrently at least two supplementary values of the approximate result of the arithmetic operation are computed, and the final result selected from one of the values of the approximate result and the at least two supplementary values of the arithmetic operation depending on the results of the last iteration step.


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