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. 07, 2009
Filed:
Aug. 04, 2004
Sapumal Wijeratne, Portland, OR (US);
Sapumal Wijeratne, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A multi-bit adder includes a carry chain, a carry-skip network, sum cells, and a carry-sum cell. The carry chain propagates, generates, or kills carry-in bits. The carry-skip network is coupled to the carry chain to selectively skip the carry-in bits over at least one portion of the carry chain. The sum cells are coupled along the carry chain to sum the carry-in bits with corresponding bits of two operands to generate a multi-bit resultant. The carry-sum cell is coupled to receive one of the carry-in bits to a single intermediate bit position on the carry chain and to generate one bit of the multi-bit resultant having a more significant bit position than the single intermediate bit position.