Photon-based detection using single-channel time-to-digital conversion

Example aspects are directed to operating a SPAD receiver such as may be used in a light detection and ranging (Lidar) system. In one example, the SPAD receiver has SPAD circuitry for multiple photon detections using a single-channel TDC (time-to-digital converter), and such photon detection is quen...

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Bibliographische Detailangaben
Hauptverfasser:	Bolatkale, Muhammed, Kulesh, Maxim, Son, Dongjin
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SEMICONDUCTOR DEVICES TESTING
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Beschreibung
Zusammenfassung:	Example aspects are directed to operating a SPAD receiver such as may be used in a light detection and ranging (Lidar) system. In one example, the SPAD receiver has SPAD circuitry for multiple photon detections using a single-channel TDC (time-to-digital converter), and such photon detection is quenched after detection so as to establish an effective pre-defined OFF period. In response, the SPAD circuitry is recharged for a subsequent ON period during which the SPAD circuitry is unquenched (or armed) for further photon detection and processing.