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:
Feb. 28, 2023
Filed:
Apr. 09, 2020
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Paul Donald Schmalenberg, Ann Arbor, MI (US);
Yasuo Uehara, Gotemba, JP;
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A frequency-modulated continuous wave (FMCW) LIDAR can be configured to reduce re-reflection and cross-coupling in the FMCW LIDAR. A first laser can be configured to generate a ranging signal, and a second laser can be configured to generate a local oscillator signal. A feedback control can be configured to maintain an offset between the ranging signal and the local oscillator signal. The offset can be a non-zero value. A transmit portion configured to emit a reference laser signal based on the ranging signal into an environment. A receiver portion can be configured to receive a return laser signal from the environment. The return laser signal can be a reflected version of the reference laser signal. A receiver photodetector can be configured to combine the return laser signal and the local oscillator signal.