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:
Nov. 01, 2016

Filed:

Feb. 06, 2015
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Andries Hekstra, Eindhoven, NL;

Arie Koppelaar, Giessen, NL;

Stefan Drude, Waalre, NL;

Frank Leong, Veldhoven, NL;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); B60R 25/24 (2013.01); H04L 9/32 (2006.01); G07C 9/00 (2006.01); H04W 12/08 (2009.01); G01S 13/82 (2006.01); H04W 12/06 (2009.01); H04L 7/027 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
H04W 4/008 (2013.01); B60R 25/246 (2013.01); G01S 13/82 (2013.01); G07C 9/00309 (2013.01); H04L 9/32 (2013.01); H04L 9/3223 (2013.01); H04L 9/3271 (2013.01); H04W 12/08 (2013.01); G07C 2009/00317 (2013.01); H04L 7/027 (2013.01); H04L 9/005 (2013.01); H04W 12/06 (2013.01);
Abstract

Using a clock circuit, a clock signal is generated at a base frequency. A frequency adjustment circuit selects, based upon a frequency offset value, a particular frequency adjustment value from a plurality of frequency adjustment values. An adjusted clock signal is provided that has a frequency corresponding to the base frequency as modified by the particular frequency adjustment value. Wireless communication signals are received at a wireless communication circuit. From the communication signals, a set of received wireless communication pulses are identified that have a pulse repetition frequency that corresponds to the adjusted clock signal. A distance ranging protocol is applied, using a processing circuit, to the identified set of received communication pulses.


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