Patent ID: 11937916
Assignee: AEVA, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. A system for monitoring an individual, the system comprising:
a first coherent laser radar section including:
a laser source that generates a first laser beam,
an interferometer that splits the first laser beam into a first target beam that is directed toward a target location on the individual and a first local oscillator beam, and that generates a first combined target beam from a first reflected portion of the first target beam returning from the target location on the individual and the first local oscillator beam;

a second coherent laser radar section including:
a laser source that generates a second laser beam,
an interferometer that splits the second laser beam into a second target beam that is directed toward the target location on the individual coincident with the first target beam and a second local oscillator beam, and that generates a second combined target beam from a second reflected portion of the second target beam returning from the target location on the individual and the second local oscillator beam;

a processor that determines a range and an instantaneous velocity for each of one or more points on the skin or the clothing of the individual over a period of time from the first combined target beam and the second combined target beam and that determines vibrations of the skin or the clothing of the individual using the range and the instantaneous velocity for each of the one or more points on the skin or the clothing of the individual.