Optical signal generation in a SPAD array based on generation of a target phase value dependent upon an ambient count rate
US9995928B2 · kind B2 · utility
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3References
15Claims
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Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Aug 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4466
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit may include a first circuit configured to generate a voltage signal for generating an optical pulse, the voltage signal being generated based on a phase control signal, and an array of single photon avalanche diode (SPAD) cells configured to detect a phase of the optical pulse. The circuit may include a phase control circuit configured to generate the phase control signal based upon a target phase value and the detected phase of the optical pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.