US Patent Application 18321614. MULTI-ANTENNA WIFI BASED BREATHING RATE ESTIMATION simplified abstract
Contents
MULTI-ANTENNA WIFI BASED BREATHING RATE ESTIMATION
Organization Name
SAMSUNG ELECTRONICS CO., LTD.==Inventor(s)==
[[Category:Vishnu Vardhan Ratnam of Plano TX (US)]]
[[Category:Hao Chen of Allen TX (US)]]
[[Category:Abhishek Sehgal of Plano TX (US)]]
[[Category:Hao-Hsuan Chang of Plano TX (US)]]
MULTI-ANTENNA WIFI BASED BREATHING RATE ESTIMATION - A simplified explanation of the abstract
This abstract first appeared for US patent application 18321614 titled 'MULTI-ANTENNA WIFI BASED BREATHING RATE ESTIMATION
Simplified Explanation
- The patent application describes a method for estimating and compensating for errors in amplitude and phase of Channel State Information (CSI) frames received from another electronic device. - The method involves estimating the CSI from each received frame and identifying an impairment model that accounts for errors in amplitude and phase. - The errors in amplitude and phase of the CSI estimates are then compensated for using various techniques such as approximating missing CSI estimates, determining an AGC gain value, or computing errors in phase using a weighted least-squares solution. - The compensated CSI estimates are used to estimate the breathing rate of a subject based on different spatial dimensions. - The innovation aims to improve the accuracy of CSI estimation and compensate for errors, allowing for more reliable estimation of the subject's breathing rate.
Original Abstract Submitted
A method includes receiving CSI frames among P CSI frames transmitted from another electronic device. The method includes estimating a CSI from each of the received CSI frames as an available CSI estimate. The method includes identifying an impairment model accounting for inclusion of amplitude or phase errors of an estimated CSI corresponding to a p-th CSI frame among the P CSI frames. The method includes compensating, via the impairment model, for the errors in amplitude and phase of P CSI estimates. Compensating for the errors in amplitude and phase of the P CSI estimates can be based on: approximating a missing CSI estimate based on the available CSI estimates; determining an AGC gain value; or computing the errors in the phase based on a weighted least-squares solution. The method includes estimating a breathing rate of a subject based on different spatial dimensions of the P compensated CSI estimates.
