US 11,789,121 B2
Determining an angle of an incident beam of coherent light
Paul Donald Schmalenberg, Ann Arbor, MI (US)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on May 28, 2020, as Appl. No. 16/885,564.
Prior Publication US 2021/0373130 A1, Dec. 2, 2021
Int. Cl. G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 17/10 (2020.01); G01S 17/89 (2020.01)
CPC G01S 7/4808 (2013.01) [G01S 7/4816 (2013.01); G01S 17/10 (2013.01); G01S 17/89 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for determining a first angle of an incident beam of a coherent light, the system comprising:
an optical antenna;
first waveguides communicably coupled to the optical antenna;
a manifold communicably coupled to the first waveguides;
second waveguides communicably coupled to the manifold;
pixels communicably coupled to the second waveguides; and
a processor,
wherein:
the pixels are arranged in an array and are configured to measure a power of the coherent light that emerges from the second waveguides, and
the processor is configured to operate a neural network trained to determine the first angle of the incident beam from an analysis of a distribution of the power across the array, wherein the pixels are inputs for the neural network and the neural network is configured to be trained by causing the incident beam of the coherent light to impinge the optical antenna at a known angle.