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:
Aug. 18, 2009
Filed:
Jul. 18, 2007
Applicant:
Robert John Weedon, Chandlers Ford, GB;
Inventor:
Robert John Weedon, Chandlers Ford, GB;
Assignee:
Roke Manor Research Limited, Romsey, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method is provided for controlling a clock for use in a frequency source. In the method a time bias is determined by determining the Accumulated Doppler Range of a signal source at different time intervals. The drift of a local clock is determined by determining the difference between the different time intervals and the clock may then be corrected. Apparatus is also provided and the invention has particular application to a multilateration system.