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US 10,948,599 B2Granted
Phasing light pulses with detectors
AssigneeGoodrich Corporation
InventorsScott W. Ramsey, Jonathan C. Jarok
Life of this patent
Estimating the term…
Abstract
A method of laser distance measurement includes issuing a command from a single controller to a laser pulse emitter to emit a laser pulse. The method includes issuing a command from the single controller to a laser pulse detector to open for detection of a return of the laser pulse. The method includes detecting a return of the laser pulse, determining total time of travel for the laser pulse, and calculating a distance measurement based on the time of travel of the laser pulse.
Claims9
A system comprising:
- a laser pulse emitter;
- a laser pulse detector;
- and
- a single controller connected to the laser pulse emitter and to the laser pulse detector to control timing of a laser pulse emitted from the laser pulse emitter and corresponding timing of opening the laser pulse detector for detection of a return of the laser pulse;
- and
- machine readable instructions configured to cause the controller to:
- issue a command to a laser pulse emitter to emit a laser pulse;
- issue a command to a laser pulse detector to open for detection of the laser pulse;
- detect the laser pulse and determine total time of travel for the laser pulse;
- and
- calculate a distance measurement based on the time of travel of the laser pulse, wherein the instructions are configured to cause the contoller to delay issuing the command to open the laser pulse detector relative to when the laser pulse is emitted from the laser pulse emitter, wherein the controller commands the laser pulse emitter to emit multiple laser pulses, and wherein the controller issues corresponding commands to open the laser pulse detector for detection of the respective pulses each with a respective window of laser pulse detection, wherein the respective window for each laser pulse varies in duration over the multiple laser pulses, wherein the controller varies duration of the respective window of laser pulse detection on a pulse by pulse basis, and wherein the controller commands the laser pulse detector to open for multiple windows for a single pulse of the laser pulse emitter for measuring multiple ranges with a single laser pulse.
8 more elements
A method of laser distance measurement comprising:
- issuing a command from a single controller to a laser pulse emitter to emit a laser pulse;
- issuing a command from the single controller to a laser pulse detector to open for detection of a return of the laser pulse;
- detecting the return of the laser pulse and determining total time of travel for the laser pulse;
- and
- calculating a distance measurement based on the time of travel of the laser pulse, wherein the controller delays issuing the command to open the laser pulse detector relative to when the laser pulse is emitted from the laser pulse emitter, wherein the controller commands the laser pulse emitter to emit multiple laser pulses, and wherein the controller issues corresponding commands to open the laser pulse detector for detection of the respective pulses each with a respective window of laser pulse detection, wherein the respective window for each laser pulse varies in duration over the multiple laser pulses, wherein the controller varies duration of the respective window of laser pulse detection on a pulse by pulse basis, and wherein the controller commands the laser pulse detector to open for multiple windows for a single pulse of the laser pulse emitter for measuring multiple ranges with a single laser pulse.
2 more elements
Dependencies are inferred from the claim text.