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:
Jun. 27, 2017

Filed:

May. 29, 2015
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Shiro Kitamura, Wako, JP;

Tomoyuki Okumura, Tokyo, JP;

Hiroshi Nanjo, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 7/485 (2006.01); G06F 7/509 (2006.01);
U.S. Cl.
CPC ...
G06F 7/485 (2013.01); G06F 7/5095 (2013.01);
Abstract

A floating-point calculation apparatus comprising: a selection part; an addition and subtraction calculation part; an output determination part; and a buffer management part configured to add, when it is determined that a buffer used to store an input value is not prepared, a buffer that corresponds to the input value, wherein when a number of significant digits of the result of performing an addition and subtraction calculation exceeds a number of significant digits of the buffer selected by the selection part, the addition and subtraction calculation part shifts right or shifts left part of the result of performing the addition and subtraction calculation and divides the result of performing the addition and subtraction calculation into values each being storable in one of a plurality of buffers.


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