Methods of detecting change in object and apparatuses for performing the methods
US9958483B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Sep 24, 2015 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6801
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A detecting apparatus includes a first resonator configured to generate a first resonance signal based on power output from a power supply in response to an object changing within a range of a field of the first resonator, a switch configured to connect the first resonator to the power supply in response to a control signal, and a controller configured to sample a value of an envelope of the first resonance signal to detect a change in the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.