发明名称 |
HALF STEP FREQUENCY FEATURE FOR RELIABLE MOTION CLASSIFICATION |
摘要 |
Disclosed is an apparatus and method for classifying a motion state of a mobile device. In one embodiment, accelerometer data representing acceleration components along orthogonal x, y, and z axes of the mobile device are collected. A presence or absence of a half-step frequency relationship between the accelerometer data is determined. Last, the motion state of the device is determined based at least in part on the presence or absence of the half-step frequency relationship. |
申请公布号 |
WO2015035085(A1) |
申请公布日期 |
2015.03.12 |
申请号 |
WO2014US54144 |
申请日期 |
2014.09.04 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
ZHANG, LEI;YANG, SICHAO;SADASIVAM, SHANKAR;SUBRAMANIAN, SUNDAR;WU, XINZHOU |
分类号 |
G01C22/00 |
主分类号 |
G01C22/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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