Estimation device and estimation method
US10969479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2019 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Nov 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided an estimation device that estimates a living body orientation. The estimation device includes: transceivers that transmit transmission signals using M transmission antenna elements arranged to surround a predetermined range including a living body, and receive reception signals using N receiving antenna elements; and a circuit that, for each of M sets of N reception signals corresponding to transmitted M transmission signals, performs calculation of a characteristic quantity based on the N reception signals included in the set, the characteristic quantity with a greater value indicating a waveform having a larger amplitude and higher regularity, identifies a first transmission antenna element corresponding to a first characteristic quantity having a greatest value among M characteristic quantities by comparing the M characteristic quantities obtained by the calculation with each other, and estimates the living body orientation to indicate a predetermined direction based on the first transmission antenna element identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.