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:
Dec. 13, 2022
Filed:
Aug. 03, 2020
Toyota Research Institute, Inc., Los Altos, CA (US);
Kun-Hsin Chen, Los Altos, CA (US);
Hai Jin, Los Altos, CA (US);
Shunsho Kaku, Mountain View, CA (US);
Takaaki Tagawa, Mountain View, CA (US);
Ryan W. Wolcott, Ann Arbor, MI (US);
Hiroshi Yasuda, San Francisco, CA (US);
Toyota Research Institute, Inc., Los Altos, CA (US);
Abstract
Systems and methods of traffic light detection/perception are provided for detecting traffic lights states and/or transitions for different traffic light layouts. Basic traffic light information can be obtained regarding, e.g., the existence of a traffic light(s) at an intersection being approached by a vehicle, and which bulb(s) may apply to/control a particular lane of traffic at the intersection. Based on that information, bulb-specific or bulbwise detection can be performed. Upon determining the existence of a traffic light, specific bulbs within or making up the traffic light can be detected, and their various states can be predicted or estimated relative to a corresponding bulb group. The various states can then be simplified and output as a message(s) upon which autonomous control of a vehicle can be based.