Method, apparatus, and system for radio based sleep tracking
US11771366B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2022 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Aug 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2111
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods, apparatus and systems for radio-based sleep tracking are described. In one example, a described system comprises: a transmitter configured to transmit a first wireless signal through a wireless multipath channel in a venue; a receiver configured to receive a second wireless signal through the wireless multipath channel, wherein the second wireless signal differs from the first wireless signal due to the wireless multipath channel which is impacted by a sleeping motion of an object in the venue; and a processor. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each channel information (CI) of the TSCI comprises N1 components, wherein N1 is a positive integer larger than one, computing N1 component-wise analytics each associated with one of the N1 components of the TSCI, identifying N2 largest component-wise analytics among the N1 component-wise analytics, wherein N2 is a positive integer less than N1, computing at least one first motion statistics based on the N2 largest component-wise analytics of the TSCI, and monitoring the sleeping motion of the object ba…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.