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. 24, 2015

Filed:

Jan. 09, 2012
Applicants:

James Digby Yarlett Collier, Cambridge, GB;

Tim Newton, Cambridge, GB;

Per-ludvig Normark, Cambridge, GB;

Thomas Renstrom, Cambridge, GB;

Inventors:

James Digby Yarlett Collier, Cambridge, GB;

Tim Newton, Cambridge, GB;

Per-Ludvig Normark, Cambridge, GB;

Thomas Renstrom, Cambridge, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 19/23 (2010.01); G01S 19/24 (2010.01); G01S 19/37 (2010.01); G01S 19/29 (2010.01); G01S 19/30 (2010.01);
U.S. Cl.
CPC ...
G01S 19/235 (2013.01); G01S 19/243 (2013.01); G01S 19/246 (2013.01); G01S 19/29 (2013.01); G01S 19/30 (2013.01); G01S 19/37 (2013.01);
Abstract

A radio communications device includes a location finder for determining the device's location based on satellite signals, a crystal oscillator whose output frequency acts as a controlling reference for the location finder and a processor for intermittently correcting the crystal oscillator such that the output frequency experiences jumps. The location finder is arranged to take account of the jumps in the determination of the device's location.


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