Low power laser sensing
US9869756B2 · kind B2 · utility
0Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Jan 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/493
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The presently disclosed subject matter includes a laser system and a respective method of detecting a signal reflected from a target illuminated by a modulated CW light source configured to generate a modulated laser signal at a predefined modulation frequency. A signal comprising true laser signal portions reflected from said target, and noise is received; the signal is filtered for selecting laser signal portions at a modulation frequency band; and the true signal portions in the signal are detected, if the energy at the modulation frequency band is greater than a given threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.