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:
Nov. 11, 2025
Filed:
Jun. 10, 2022
GM Global Technology Operations Llc, Detroit, MI (US);
Qijun Zhang, Canton, MI (US);
Mark A. Stebbins, Bloomfield Township, MI (US);
Srinivasa Rao Molleti, Troy, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A LiDAR resonator with dynamic force equilibrium that includes a spring fork mechanism having a first tine and a second tine with the same stiffness as the first tine, wherein the spring fork mechanism is configured to resonate at a resonant frequency, an optical module, mounted to the first tine, for transmitting a light pulse and receiving a reflection of the light pulse, a voice coil, also mounted to the first tine, for generating an alternating magnetic field at the resonant frequency, a counterweight, mounted to the second tine, having a mass and CG equal to a mass and CG of the combined optical module and the voice coil, and a signal source for coupling an alternating current signal at the resonant frequency to the voice coil such that the voice coil is operative to generate an alternating magnetic force at the resonant frequency between the voice coil and the counterweight.