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:
Aug. 15, 2017

Filed:

Feb. 15, 2013
Applicant:

Nokia Technologies Oy, Espoo, FI;

Inventors:

Jarmo Ilkka Saari, Turku, FI;

Kanji Kerai, London, GB;

Timo Juhani Toivanen, Mäntsälä, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/02 (2009.01); H04W 52/28 (2009.01); H04W 52/24 (2009.01); H04W 52/22 (2009.01); H04W 52/02 (2009.01); H04W 4/00 (2009.01); H04B 17/27 (2015.01); H04B 17/318 (2015.01); G01S 5/14 (2006.01); H04W 84/18 (2009.01); G01S 13/74 (2006.01);
U.S. Cl.
CPC ...
H04W 4/023 (2013.01); G01S 5/14 (2013.01); H04B 17/27 (2015.01); H04B 17/318 (2015.01); H04W 4/008 (2013.01); H04W 4/02 (2013.01); H04W 4/021 (2013.01); H04W 52/0245 (2013.01); H04W 52/225 (2013.01); H04W 52/245 (2013.01); H04W 52/283 (2013.01); G01S 13/74 (2013.01); H04W 84/18 (2013.01); Y02B 60/50 (2013.01);
Abstract

A second device () comprises: a transmitter configured to transmit a first signal to a first device (); a receiver configured to receive a second signal that has been transmitted by the first device (); a demodulator configured to demodulate a second message from the second signal, the second message including an indication of signal strength of the first signal as measured by the first device (); a signal strength measuring module configured to measure signal strength of the received second signal; and a calculator configured to use the indication of the measured signal strength included in the second message and the signal strength of the second signal as measured by the second device () to calculate a measure of the distance between the first and second devices ().


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