Time-of-flight optical measurement and decoding of fast-optical signals
US11412930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2019 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Jan 4, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0261
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An optical measurement system comprising an optical source configured for delivering sample light in an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure, an optical detector configured for detecting the physiological-encoded signal light, and a processor configured for acquiring a TOF profile derived from the physiological-encoded signal light, the initial TOF profile having an initial contrast-to-noise ratio (CNR) between a plurality of states of a physiological activity in the anatomical structure. The processor is further configured for applying one or more weighting functions to the initial TOF profile to generate a weighted TOF profile having a subsequent CNR greater than the initial CNR between the plurality of states of the physiological activity. The processor is further configured for processing the weighted TOF profile, and identifying one of the plurality of states of the physiological activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.