Patent ID: 11923694
Assignee: LASERMOTIVE, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. A laser system to pass laser light from a first location to a second location that is remote from the first location, the laser system comprising:
a guard beam emitter that emits a guard beam;
a corresponding guard beam detector that receives the guard beam from the guard beam emitter;
a processor; and
a non-transitory computer-readable storage medium that stores an optical intensity profile that defines guard beam light received by the corresponding guard beam detector over time;
wherein a change in guard beam light received by the corresponding guard beam detector is detected based on a comparison of current guard beam light received by the corresponding guard beam detector and values stored in the optical intensity profile;
wherein the non-transitory computer-readable storage medium further stores a plurality of additional optical intensity profiles, a first one of the plurality of additional optical intensity profiles corresponding to guard beam light received by the guard beam detector in the presence of an object with a slower travel speed and a second one of the plurality of additional optical intensity profiles corresponding to guard beam light received by the guard beam detector in the presence of an object with a faster travel speed, wherein detecting the change in guard beam light includes determining a travel speed of an object by comparing the current guard beam light with the first and second one of the plurality of additional optical intensity profiles; and
wherein the laser light passed from the first location to the second location is disabled based on the detected change in guard beam light.