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:
Apr. 08, 2003
Filed:
Dec. 03, 1999
Applicant:
Inventor:
Shanker Singh, Morgan Hill, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/50 ;
U.S. Cl.
CPC ...
G06F 7/50 ;
Abstract
The present invention provides an improved method and apparatus for performing decimal arithmetic using conventional parallel binary adders. In a first aspect of the present invention, a method for implementing decimal arithmetic using a radix (base) and a method for implementing radix numbering system are disclosed. The first aspect of the present invention implements decimal arithmetic utilizing radix , where one-hundred decimal numbers, through , are represented using seven BCD bits. In a second aspect of the present invention, a specialized high-speed radix parallel adder is disclosed.