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:
Sep. 12, 2017

Filed:

Jun. 30, 2016
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Charles Augustine, Portland, OR (US);

Suriya Ashok Kumar, Portland, OR (US);

Carlos Tokunaga, Hillsboro, OR (US);

James W. Tschanz, Portland, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H03K 19/003 (2006.01); H03K 19/177 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H03K 19/00315 (2013.01); H03K 19/1776 (2013.01); H04L 9/3278 (2013.01);
Abstract

Some embodiments include apparatus and methods using a first ring oscillator, a second ring oscillator, and circuit coupled to the first and second ring oscillators. The first ring oscillator includes a first memory cell and a first plurality of stages coupled to the first memory cell. The second ring oscillator includes a second memory cell and a second plurality of stages coupled to the second memory cell. The circuit includes a first input node coupled to an output node of the first ring oscillator and a second input node coupled to an output node of the second ring oscillator. In one of such embodiments, the circuit can operate to generate identification information to authenticate the apparatus.


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