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:
Apr. 21, 2015
Filed:
Jun. 09, 2011
Farshid Alizadeh-shabdiz, Wayland, MA (US);
Nicolas Brachet, Chestnut Hill, MA (US);
Gerald Cavanaugh, Providence, RI (US);
Andrei Dancus, Nashua, NH (US);
Russel K. Jones, Medfield, MA (US);
Christopher Steger, Boston, MA (US);
Farshid Alizadeh-Shabdiz, Wayland, MA (US);
Nicolas Brachet, Chestnut Hill, MA (US);
Gerald Cavanaugh, Providence, RI (US);
Andrei Dancus, Nashua, NH (US);
Russel K. Jones, Medfield, MA (US);
Christopher Steger, Boston, MA (US);
Skyhook Wireless, Inc., Boston, MA (US);
Abstract
Systems for and methods of determining likelihood of atypical transmission characteristics of reference points in a positioning system are disclosed. A method of determining a measure of likelihood that a designated wireless device exhibits signal transmission characteristics atypical of a wireless device of a type matching the designated device includes determining reference points associated with the designated device, which are a geographic position at which signals from the designated device were detected and/or another wireless device from which signals were also detected by a receiver within a selected period of time during which the signals from the designated device were detected. The method also includes determining statistical measures of a spatial distribution of the reference points and determining a measure of likelihood that the designated device exhibits signal transmission characteristics that are atypical of a wireless device of a type matching the designated device based on the statistical measures.