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:
Jul. 21, 2009
Filed:
Jan. 25, 2005
Paul R. Simons, Redhill, GB;
Martin S. Wilcox, Redhill, GB;
Paul R. Simons, Redhill, GB;
Martin S. Wilcox, Redhill, GB;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention provides a method for installing a positioning system, the positioning system comprising two or more base stations (BSto BS), and comprises the steps of; collocating the base stations (BSto BS); quantifying any lack of synchronization between the clocks of the base stations; relocating one or more of the base stations (BS' to BS′) to their fixed, operational positions and measuring the time of flight of a signal from each of the relocated base stations; determining from the time of flight and quantified lack of synchronization data the relative separation of the base stations (BS, BS′ to BS′) and hence the configuration of the installed positioning system, and recording the configuration of the installed positioning system. Data defining the configuration of the system can be relayed to a mobile transceiver in the vicinity of the installed positioning system and, along with time of flight measurements of signals emitted by the individual base stations, and data quantifying any real time lack of synchronization of the clocks of the base stations, can be used by the transceiver to position itself within the geographical area defined by the positioning system.