Monitoring apparatus
US7428468B2 · kind B2 · utility
59Cited by
1References
48Claims
0Family size
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Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Feb 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/88
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To provide a monitoring device which can detect conditions of a sleeping person reliably and which is simple. A monitoring device comprising: multiple independent distance sensors 11 installed facing different positions in a monitored target area 50 to be monitored for measuring a distance to a monitored target 2, a calculating unit 22 for calculating changes over time in the outputs of the distance sensors 11, and a detection processor 23 for detecting changes in shape of the monitored target 2 based on the calculated changes over time in one or multiple distance sensor 11 among the multiple distance sensors 11.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.