Injecting an RF local oscillator signal into an avalanche photo diode using photons emitted from a light emitting diode
US11181626B2 · kind B2 · utility
1Cited by
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3Claims
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Key dates
| Filing date | Sep 20, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Jan 8, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4918
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure generally relates to laser range finders. In one embodiment, a shallow-trench isolation diode operates in a reverse-biased mode. In another embodiment, a poly-defined diode operates in a forward-biased mode. In both embodiments, the diode emits photons in response to a radio frequency current, and the photons are received by an avalanche photo diode during a calibration process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.