Invention Grant
- Patent Title: GPS and MEMS hybrid location-detection architecture
- Patent Title (中): GPS和MEMS混合定位检测架构
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Application No.: US13169711Application Date: 2011-06-27
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Publication No.: US08362949B2Publication Date: 2013-01-29
- Inventor: Qingxuan Yang , Edward Chang , Guanfeng Li
- Applicant: Qingxuan Yang , Edward Chang , Guanfeng Li
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Sterne, Kessler, Goldstein & Fox PLLC
- Main IPC: G01S19/48
- IPC: G01S19/48

Abstract:
The present application describes a computer-implemented method and system for obtaining position information for a moving mobile device with increased accuracy and reduced power consumption. The subject of the present application combines information from a GPS location sensor with information from MEMS devices such as an acceleration detector and a gyroscope using statistical analysis techniques such as a Kalman filter to estimate the location of the device with greater accuracy while using numerical methods such as the Newton-Raphson Method to minimize power consumption. Minimizing power consumption is possible because GPS signals sampled at a lower rate can conserve power, while GPS sampled at a lower rate and working together with MEMS devices can achieve the same level of location prediction accuracy as a GPS alone sampled at a higher rate.
Public/Granted literature
- US20120326922A1 GPS AND MEMS HYBRID LOCATION-DETECTION ARCHITECTURE Public/Granted day:2012-12-27
Information query
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