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:
Mar. 16, 1999
Filed:
Nov. 29, 1993
Ruby Bei-Loh Lee, Los Altos Hills, CA (US);
John Paul Beck, Tyngsborough, MA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
An apparatus that can also be used for generating the average of two integers. The apparatus can be divided into a plurality of sub-adders that operate on sub-words of the input integers in parallel. Hence, the adder can be used for adding or subtracting one set of two integers wherein each integer is of some predetermined length or a plurality of sets of two integers provided the sum of the lengths of the integers is less than or equal to this predetermined length. The apparatus can also generate the sum, or difference, of each of the sub-words divided by two. The parallel operations can be carried out in response to a single instruction. The results of the division by two are rounded in a manner that eliminates biasing of the results.