Strobe window dependent illumination for flash LIDAR
OwnerRobert Henderson, Tarek Al Abbas +2inventors
InventorsRobert Henderson, Tarek Al Abbas, Neil Calder, Hod Finkelstein
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Abstract
A Light Detection And Ranging (LIDAR) system includes one or more emitter elements configured to emit optical signals responsive to respective emitter control signals, one or more detector elements configured to detect incident photons for respective strobe windows of operation between pulses of the optical signals and at respective delays that differ with respect to the pulses, and at least one control circuit. The at least one control circuit is configured to generate the respective emitter control signals to differently operate the one or more emitter elements based on the respective strobe windows of operation of the one or more detector elements.
Claims20
A Light Detection And Ranging (LIDAR) system, comprising:
- one or more emitter elements operable to emit optical signals responsive to respective emitter control signals;
- one or more detector elements operable to detect incident photons for respective strobe windows of operation, wherein the respective strobe windows of operation are between pulses of the optical signals and are at respective delays that differ with respect to the pulses;
- and
- at least one control circuit configured to generate the respective emitter control signals to differently operate the one or more emitter elements based on the respective delays of the respective strobe windows of operation of the one or more detector elements.
A Light Detection And Ranging (LIDAR) system, comprising:
- at least one control circuit configured to output respective emitter control signals to operate one or more emitter elements to emit first optical signals at a first power level for a first strobe window of operation of one or more detector elements, and to emit second optical signals at a second power level, different than the first power level, for a second strobe window of operation of the one or more detector elements, based on respective delays of the first and second strobe windows with respect to pulses of the first and second optical signals, respectively,
- wherein the respective delays of the first and second strobe windows correspond to respective sub-ranges of a distance range that is based on a time between the pulses of the first or second optical signals.
A Light Detection And Ranging (LIDAR) system, comprising:
- at least one control circuit configured to output respective emitter control signals to operate a first subset of emitter elements of an emitter array to emit first optical signals for a first strobe window of operation of one or more detector elements, and to operate a second subset of the emitter elements, different than the first subset, to emit second optical signals for a second strobe window of operation of the one or more detector elements, based on respective delays of the first and second strobe windows with respect to pulses of the first and second optical signals, respectively,
- wherein the respective delays of the first and second strobe windows correspond to respective sub-ranges of a distance range that is based on a time between the pulses of the first or second optical signals.
Dependencies are inferred from the claim text.