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1. (WO2017156492) METHODS, APPARATUS, SERVERS, AND SYSTEMS FOR VITAL SIGNS DETECTION AND MONITORING

Pub. No.:    WO/2017/156492    International Application No.:    PCT/US2017/021963
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 11 00:59:59 CET 2017
IPC: A61B 5/0205
A61B 5/04
A61B 5/08
G01S 3/74
Applicants: ORIGIN WIRELESS, INC.
Inventors: CHEN, Chen
WANG, Beibei
HAN, Yi
ZHANG, Feng
LAI, Hung-Quoc, Duc
CHEN, Yan
LIU, K.J., Ray
Title: METHODS, APPARATUS, SERVERS, AND SYSTEMS FOR VITAL SIGNS DETECTION AND MONITORING
Abstract:
The present teaching relates to vital sign detection and monitoring based on channel state information (CSI). In one example, an apparatus for vital sign detection is disclosed. The apparatus comprises a receiver, a processor and a memory communicatively coupled with the processor. The receiver is configured for receiving at least one wireless signal from a multipath channel that can be impacted by a vital sign of at least one living being. The processor is configured for: extracting a time series of channel state information (CSI) for the multipath channel from the at least one wireless signal, obtaining one or more periodic fluctuations based on a spectral analysis of the time series of CSI, and determining whether the vital sign is present based on the one or more periodic fluctuations.