Dual amplitude modulation and polarization frequency modulation as well as compensation for noninvasive glucose monitoring
US10702197B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jan 14, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0238
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An embodiment relates generally to an improved method and apparatus for modulating the amplitude and rotation of the plane of polarization of linearly polarized light for multiple uses but primarily as part of a noninvasive glucose monitoring system. As compared to previous monitoring systems, an embodiment provides faster monitoring while maintaining or even reducing noise and minimizing system complexity. Embodiments described herein address these concerns with a modulation and compensation approach that both uses a single high speed device and also modulation of the lasers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.