公开(公告)号：EP1861729A2

公开(公告)日：2007-12-05

申请号：EP06737107.0

申请日：2006-03-02

申请人： SiRF Technology, Inc.

发明人： CHANG, Steve ,  PANDE, Ashutosh ,  GARIN, Lionel Jacques ,  CHADHA, Kanwar ,  PENG, Leon ,  ZHANG, Gengsheng ,  VANTALON, Nicolas ,  TURETZKY, Gregory B.

IPC分类号： G01S1/00 ,  H04Q7/38

CPC分类号： G01S19/06 ,  G01S19/05 ,  H04L67/18 ,  H04W4/02

摘要： In a method for providing location-based information over a network, a plurality of GPS reference data sets, corresponding to a plurality of respective local areas, are acquired at intervals such that each GPS reference data set is updated on a continuous basis. A plurality of aiding data sets are generated at intervals based on the respective GPS data sets, whereby each aiding data set is updated on a continuous basis. The generated aiding data sets are stored at intervals on a data-storing network server, whereby updated aiding data sets are available on a continuous basis for access by a requesting entity via communication with the data-storing network server.

公开(公告)号：EP1969867A2

公开(公告)日：2008-09-17

申请号：EP06846630.9

申请日：2006-12-14

申请人： SiRF Technology, Inc.

发明人： CHANG, Steve

IPC分类号： H04Q7/22 ,  G01S5/14

CPC分类号： G01S19/05 ,  G01S19/07 ,  G01S19/256 ,  G01S19/258 ,  G01S19/37 ,  H04W4/00 ,  H04W64/00

摘要： A network approach for aided GPS broadcast positioning where A-GPS data is made available in the network and broadcast via cell broadcast servers to wireless devices in order to reduce the time required to determine the position of a wireless device.

摘要翻译： 一种用于辅助GPS广播定位的网络方法，其中A-GPS数据在网络中可用，并通过小区广播服务器广播到无线设备，以减少确定无线设备位置所需的时间。

公开(公告)号：EP1812805A1

公开(公告)日：2007-08-01

申请号：EP05812678.0

申请日：2005-10-18

申请人： SiRF Technology, Inc.

发明人： PANDE, Ashutosh ,  CHANG, Steve ,  GARIN, Lionel, Jacques ,  ZHANG, Qiuye, John

IPC分类号： G01S1/00

CPC分类号： G01S19/37 ,  G01S19/05 ,  G01S19/07 ,  G01S19/256 ,  G01S19/258 ,  H04B7/2693

摘要： A shuttle message that is passed between GPS enabled devices that is processed at either a bit level or word level with data that the GPS enable device has already gathered and augmenting the positioning data stored at GPS enabled devices by retrieving data contained in the shuttle message. The shuttle message is then passed with any updated information from a GPS enabled device to one or more other devices such as a mobile station.