US 12,135,373 B2
Systems and methods for LIDAR sensing
Masayuki Okano, Santa Clara, CA (US); and Changho Chong, Los Altos, CA (US)
Assigned to SANTEC HOLDINGS CORPORATION, Komaki (JP)
Filed by Santec Holdings Corporation, Aichi (JP)
Filed on Apr. 16, 2021, as Appl. No. 17/233,080.
Prior Publication US 2022/0334260 A1, Oct. 20, 2022
Int. Cl. G01S 17/89 (2020.01); G01S 7/486 (2020.01); G01S 17/894 (2020.01); G01S 17/931 (2020.01)
CPC G01S 17/894 (2020.01) [G01S 7/486 (2013.01); G01S 17/931 (2020.01)] 19 Claims
OG exemplary drawing
 
1. A light detecting and ranging (LIDAR) system, the system comprising:
a light source configured to generate a beam that is tunable over a range of frequencies;
an optical beam steering device positioned to receive at least a portion of the beam and configured to sweep the beam over a range of angles in a field of view (FOV), wherein each discrete frequency of the beam corresponds to a different angle in the FOV;
a detector positioned to receive portions of the beam that are reflected from an object within the FOV and configured to generate an interference signal based on the received portions of the beam; and
a processor communicably coupled to the detector, the processor configured to:
cause the light source to tune the beam from a first frequency to a second frequency; and
calculate a range of an object corresponding to either the first frequency or the second frequency within the FOV, wherein, to calculate the range of the object, the processor is configured to segment the interference signal using a window function, wherein the window function corresponds to a particular segment of the FOV.