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.

Date of Patent:
Mar. 07, 2017

Filed:

Dec. 11, 2014
Applicant:

Capital Microelectronics Co., Ltd., Beijing, CN;

Inventors:

Ping Fan, Beijing, CN;

Jia Geng, Beijing, CN;

Yuanpeng Wang, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/38 (2006.01); H03K 19/173 (2006.01); G06F 7/501 (2006.01);
U.S. Cl.
CPC ...
H03K 19/1737 (2013.01); G06F 7/501 (2013.01);
Abstract

A carry-skip one-bit full adder and a field programmable gate array device, the full adder includes: a first multiplexer, a second multiplexer, and an adder, the first multiplexer includes a first addend input end and a first constant input end configured to input a first constant to the first multiplexer; the second multiplexer includes a second addend input end and a second constant input end configured to input a second constant to the second multiplexer; when the first addend input end is not used for input of a first addend, and/or when the second addend input end is not used for input of a second addend, the first multiplexer selects to output the first constant input, and the second multiplexer selects to output the second constant input.


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