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:
Dec. 16, 2014

Filed:

Aug. 22, 2011
Applicant:

Chetan C. Kamdar, Austin, TX (US);

Inventor:

Chetan C. Kamdar, Austin, TX (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H03K 5/24 (2013.01);
Abstract

A fast masked summing comparator apparatus includes a comparator unit configured to compare a masked first number to a masked sum of a second number and a third number to determine whether the masked sum is equivalent to the masked first number without performing a summation portion of an addition operation between the second number and the third number. The comparator unit may concurrently mask both the sum and the first number using the same mask value.


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