Patent ID: 11921237
Assignee: WAYMO LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The device of claim 4, wherein the light pulse is a first light pulse, the pulse period is a first pulse period, the background light level is a first background light level, the threshold signal level is a first threshold signal level, and the reflected light pulse is a first reflected light pulse,
wherein the light emitter is further configured to emit a second light pulse during a second pulse period, wherein the second pulse period includes a timeframe preceding the second light pulse and a timeframe following the second light pulse, and
wherein the controller is further configured to:
determine a second background light level based on an output of the light detector during the timeframe preceding the second light pulse; and
set, based on the second background light level, a second threshold signal level for detecting a second reflected light pulse during the timeframe following the second light pulse.