The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
Dec. 06, 2022
Aeva, Inc., Mountain View, CA (US);
Eric Bohannon, Henrietta, NY (US);
Garret Phillips, Pittsford, NY (US);
Bryce Bradford, Cupertino, CA (US);
Aeva, Inc., Mountain View, CA (US);
Abstract
A frequency modulated continuous wave (FMCW) light detection and ranging (LIDAR) system that includes an optical source to transmit an optical beam and a drive circuit configured to drive a current through the optical source to transmit the optical beam at a frequency. The system also includes an operational amplifier comprising a plurality of inputs to produce an output voltage for receipt by the drive circuit as input to determine an amplitude of the current driven by the drive circuit through the light source. The system also includes electro optical circuitry coupled to a first input of the plurality of inputs to produce a phase locked loop to maintain the light at the frequency. The system also includes ramp control circuitry coupled to a second input the plurality of inputs to cause the output voltage of the operational amplifier to modulate the optical beam at the frequency.