Invention Application
- Patent Title: ENERGY EFFICIENT LOCATION TRACKING ON SMART PHONES
- Patent Title (中): 能量效率位置跟踪智能手机
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Application No.: US13307754Application Date: 2011-11-30
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Publication No.: US20130137450A1Publication Date: 2013-05-30
- Inventor: Jing Dai , Ming Li , Milind R. Naphade , Sambit Sahu
- Applicant: Jing Dai , Ming Li , Milind R. Naphade , Sambit Sahu
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Main IPC: H04W4/04
- IPC: H04W4/04
Abstract:
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.
Public/Granted literature
- US08588810B2 Energy efficient location tracking on smart phones Public/Granted day:2013-11-19
Information query
