logo

For the Inventor, By the Inventor

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 7840629 B1

PDFFull Text
Expired
Date of Patent:
Nov. 23, 2010

Filed:

Aug. 24, 2006

Methods and apparatus for providing a booth multiplier

Applicant:

Koji Hirairi, Tokyo, JP;

Inventor:

Koji Hirairi, Tokyo, JP;

Assignee:

Sony Computer Entertainment Inc., Tokyo, JP;

Attorneys:

Matthew B. Dernier, Esq.

Gibson & Dernier LLP

Primary Examiner:

Lewis A Bullock, Jr

Assistant Examiner:

Joseph Kelly

Int. Cl.
CPC ...
G06F 7/52 (2006.01); G06F 7/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods and apparatus for converting a radix 2 multiplier to respective groups of radix 4 encoded bits representing numbers of the group consisting of −2, −1, 0, 1, 2, wherein the set of encoded bits includes: a first bit that is true when the associated number is 2, a second bit that is true when the associated number is −2, a third bit that is true when the associated number is either negative or zero, and a fourth bit that is true when the associated number has an absolute value of 1.

Find Patent Forward Citations

Hirairi, Koji. (2010). Methods and apparatus for providing a booth multiplier (U.S. Patent No. 7840629). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7840629

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…