发明申请
- 专利标题： ENERGY EFFICIENT LOCATION TRACKING ON SMART PHONES
- 专利标题（中）： 能量效率位置跟踪智能手机
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申请号： US13307754申请日： 2011-11-30
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公开(公告)号： US20130137450A1公开(公告)日： 2013-05-30
- 发明人: Jing Dai , Ming Li , Milind R. Naphade , Sambit Sahu
- 申请人： Jing Dai , Ming Li , Milind R. Naphade , Sambit Sahu
- 申请人地址： US NY Armonk
- 专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址： US NY Armonk
- 主分类号： H04W4/04
- IPC分类号： H04W4/04
摘要：
A GPS-enabled cellular electronic device is operated in an indoor mode. An increase in strength of a cellular signal is detected at the GPS-enabled cellular electronic device. Responsive at least to the increase in cellular signal strength, the GPS-enabled cellular electronic device is transitioned to an outdoor testing mode. Detecting is carried out to determine whether movement of the GPS-enabled cellular electronic device occurs during the outdoor testing mode. If so, the GPS-enabled cellular electronic device is transitioned to an outdoor mode.
公开/授权文献
- US08588810B2 Energy efficient location tracking on smart phones 公开/授权日：2013-11-19
信息查询
