摘要 |
A method of providing a relevant subset of information to a client device is based in part on scanning for Wi-Fi access points within range of the client device, using a Wi-Fi database that covers a large target region to retrieve information about these access points, using this information to estimate the position of the mobile client device, selecting a limited region in the vicinity of the estimated location of the client device, and providing information about Wi-Fi access points within this limited region to the client. For efficient transfer and maintenance of data, the target region may be divided into a hierarchy of fixed geographical tiles. |
申请人 |
SKYHOOK WIRELESS, INC.;BRACHET, NICOLAS;ALIZADEH-SHABDIZ, FARSHID;NELSON, JOEL, N.;JONES, RUSSEL, K. |
发明人 |
BRACHET, NICOLAS;ALIZADEH-SHABDIZ, FARSHID;NELSON, JOEL, N.;JONES, RUSSEL, K. |