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:
Apr. 17, 2018
Filed:
Mar. 14, 2014
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Christopher J. Hansen, Los Altos, CA (US);
Stuart K. Neubarth, Mountain View, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 64/00 (2009.01); G01S 5/02 (2010.01); G01S 5/14 (2006.01); G01S 13/74 (2006.01);
U.S. Cl.
CPC ...
H04W 64/003 (2013.01); G01S 5/0205 (2013.01); G01S 5/0236 (2013.01); G01S 5/14 (2013.01); G01S 13/74 (2013.01);
Abstract
A method and apparatus for location determination by a WLAN station is disclosed. The method can include a first WLAN station receiving a packet sent by a second WLAN station, deriving a channel quality metric for a channel between the first WLAN station and the second WLAN station, comparing the channel quality metric to a threshold, and calculating a distance between the first WLAN station and the second WLAN station in an instance in which the channel quality metric satisfies the threshold.