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:
Sep. 06, 2011
Filed:
Aug. 31, 2006
Peter James Duffett-smith, Cambridge, GB;
Anthony Richard Pratt, Cambridge, GB;
Peter James Duffett-Smith, Cambridge, GB;
Anthony Richard Pratt, Cambridge, GB;
Cambridge Positioning Systems Limited, Cambridge, GB;
Abstract
A method is described, for use with an SPS mobile terminal receiver, of providing a compact assistance vector to initialize and constrain the computation of the terminal's location within a region of validity. The compact assistance vector is provided to a computing nodeable also to obtain measurements from a mobile terminal satellite positioning system receiver within said region. For a known reference pointwithin the region, the range or ranges from the reference point to one or more satellitesof the satellite positioning system are obtained. The range or ranges are represented by a number or numbers of ranging code repeat intervals in a limited resolution format. The compact assistance vector is created from the representation or representations of ranging code repeat intervals and transferred to the computing node. The compact assistance vector can then be used to initialize a location computation for the SPS mobile terminal receiver