发明授权
- 专利标题： Energy efficient location tracking on smart phones
- 专利标题（中）： 智能手机节能位置跟踪
-
申请号： US13307754申请日： 2011-11-30
-
公开(公告)号： US08588810B2公开(公告)日： 2013-11-19
- 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
- 代理机构： Otterstedt, Ellenbogen & Kammer, LLP
- 代理商 Louis J. Percello
- 主分类号： H04W24/00
- IPC分类号： H04W24/00
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
- US20130137450A1 ENERGY EFFICIENT LOCATION TRACKING ON SMART PHONES 公开/授权日：2013-05-30
信息查询
