Patent ID: 11885871
Assignee: MAGIC LEAP, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The augmented reality device of claim 1, wherein the radar system includes:
at least a first radar device having:
a first radar transmitter secured to the frame and transmitting a radio wave at first and second times in the slow domain;
a first radar receiver secured to the frame and detecting the radio waves after the radio waves are reflected from a surface;
a radar tracking module connected to the first radar receiver and determining first and second time intervals in a fast domain between the transmission and the detection of the radio waves, respectively;
a radar mapping module connected to the radar tracking module and generating first and second radar maps of locations of real-world objects relative to the user based at least on the respective times in the fast domain; and
an image processing module connected to the radar mapping module and calculating a first and second sets of radar fingerprints based on the locations of the real-world objects in the first and second radar maps, respectively.