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:
Sep. 10, 1996
Filed:
Jan. 04, 1995
Sumeet Agrawal, Portland, OR (US);
Narayan Hegde, Beaverton, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A carry-skip incrementor mitigating propagation delay experienced by conventional ripple carry incrementors without employing a substantially greater device count, includes a plurality of circuit blocks operating in combination with a plurality of logic gates. Each circuit block receives as input a varying number of data bits of an input operand and a carry signal and thereafter, generates a product signal and real bit sums corresponding to these data bits. The plurality of logic gates are arranged such that each logic gate receives as input the product signal from a first adjacent circuit block and the carry signal and outputs the carry signal for a second adjacent circuit block. The carry signal is active if the product signal and the carry signal are active. Thus, the delay associated with the first adjacent circuit block is bypassed in favor of the delay associated with the logic gate.