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:
Oct. 18, 2016

Filed:

Sep. 25, 2014
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Suvam Nandi, Bangalore, IN;

Badarish Mohan Subbannavar, Bangalore, IN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/501 (2006.01); G06F 7/50 (2006.01); H03K 19/20 (2006.01); H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
G06F 7/50 (2013.01); H03K 19/0013 (2013.01); H03K 19/20 (2013.01);
Abstract

A full adder is disclosed that utilizes low area. The full adder includes an exclusive NOR logic circuit. The exclusive NOR logic circuit receives a first input and a second input. A first inverter receives an output of the exclusive NOR logic circuit and generates an exclusive OR output. A carry generation circuit receives the output of the exclusive NOR logic circuit, the exclusive OR output and a third input. The carry generation circuit generates an inverted carry. A second inverter is coupled to the carry generation circuit and generates a carry on receiving the inverted carry. A sum generation circuit receives the output of the exclusive NOR logic circuit, the exclusive OR output and the third input. The sum generation circuit generates an inverted sum. A third inverter is coupled to the sum generation circuit and generates a sum on receiving the inverted sum.


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