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.:

US 7593977 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 22, 2009

Filed:

Dec. 23, 2002
Applicant:

Marius A. Cornea-hasegan, Beaverton, OR (US);

Inventor:

Marius A. Cornea-Hasegan, Beaverton, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/483 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and system for determining whether a result d of a floating-point operation on operands a, b, c is tiny (may underflow) is disclosed. In one embodiment, a prediction whether d is tiny is made in hardware, but this prediction may include false results. Operands a, b, c are scaled to a', b′, c′ and then result d′ from the floating-point operation on operands a′, b′, c′ is calculated. A determination whether d will actually be tiny can be determined from the value of d′. A decision may then be made to proceed with either software or hardware calculations of d.


Find Patent Forward Citations

Cornea-Hasegan, Marius. (2009). Method and system for avoiding underflow in a floating-point operation (U.S. Patent No. 7593977). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7593977

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