Invention Grant
- Patent Title: Two stage mobile device geographic location determination
- Patent Title (中): 两级移动设备的地理位置确定
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Application No.: US12446453Application Date: 2007-10-22
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Publication No.: US08369266B2Publication Date: 2013-02-05
- Inventor: Zhengyi Jin , Magesh Annamalai
- Applicant: Zhengyi Jin , Magesh Annamalai
- Applicant Address: US WA Bellevue
- Assignee: T-Mobile USA, Inc.
- Current Assignee: T-Mobile USA, Inc.
- Current Assignee Address: US WA Bellevue
- International Application: PCT/US2007/082133 WO 20071022
- International Announcement: WO2008/049131 WO 20080424
- Main IPC: H04L12/66
- IPC: H04L12/66 ; H04W74/00

Abstract:
A system and method for mitigating the delay associated with using GPS technologies to determine the location of a mobile device. The system utilizes a two-stage location determination process. During the first stage, an estimated position of the mobile device is immediately provided based on the most accurate stored location information that is available to the system. If greater accuracy is still required, during the second stage a more accurate position of the mobile device is provided using GPS-based technologies.
Public/Granted literature
- US20110051658A1 TWO STAGE MOBILE DEVICE GEOGRAPHIC LOCATION DETERMINATION Public/Granted day:2011-03-03
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