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.:
Date of Patent:
Jul. 05, 2016
Filed:
Mar. 31, 2014
Applicant:
Google Inc., Mountain View, CA (US);
Inventor:
Marco Fucci, San Francisco, CA (US);
Assignee:
Google Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 17/27 (2015.01); H04N 1/00 (2006.01); G06K 15/00 (2006.01); G06F 21/00 (2013.01); G06F 21/31 (2013.01); G06F 21/32 (2013.01);
U.S. Cl.
CPC ...
H04N 1/00973 (2013.01); G06F 21/00 (2013.01); G06F 21/31 (2013.01); G06F 21/32 (2013.01); G06K 15/00 (2013.01); G06K 15/402 (2013.01); G06K 15/4095 (2013.01); H04N 1/00347 (2013.01); H04N 1/00838 (2013.01);
Abstract
A method for detecting proximity of two communicating devices is disclosed. Proximity may be determined by measuring deviation from standardized signal timing specifications. An embodiment uses inter-frame space parameters specified by the Bluetooth Low Energy protocol to do proximity detection, and presents a solution that may prevent or mitigate relay attacks. The method offers the advantage that the use of an existent frame timing protocol eliminates the need for specific hardware or firmware modifications.