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.:

US 9490977 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 08, 2016

Filed:

Nov. 06, 2008
Applicants:

Chunxuan YE, King of Prussia, PA (US);

Alexander Reznik, Titusville, NJ (US);

Yogendra C. Shah, Exton, PA (US);

Julien Closs, Grenoble, FR;

Frederic H. Truco, Gattieres, FR;

Inventors:

Chunxuan Ye, King of Prussia, PA (US);

Alexander Reznik, Titusville, NJ (US);

Yogendra C. Shah, Exton, PA (US);

Julien Closs, Grenoble, FR;

Frederic H. Truco, Gattieres, FR;

Assignee:

InterDigital Patent Holdings, Inc., Wilmington, DE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04W 24/00 (2009.01); H04B 10/00 (2013.01); H04L 9/08 (2006.01); H04W 12/02 (2009.01); H04W 12/04 (2009.01);
U.S. Cl.
CPC ...
H04L 9/0875 (2013.01); H04K 1/00 (2013.01); H04L 2209/80 (2013.01); H04W 12/02 (2013.01); H04W 12/04 (2013.01);
Abstract

A method and apparatus for generating physical layer security keys is provided. Channel impulse response (CIR) measurements are recorded. Each CIR measurement is associated with a time-stamp. Where possible, the time-stamps are paired with time-stamps that are associated with another plurality of CIR measurements. The CIR data associated with the paired time-stamps is aggregated. Each of the aggregated CIR measurements is aligned, and at least one CIR measurement is selected for use in secret key generation.


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