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:
Aug. 31, 2021
Filed:
Nov. 21, 2019
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Ippei Sugae, Kariya, JP;
Atsuo Fukaya, Kariya, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya, JP;
Abstract
A vehicle guidance system includes an onboard apparatus and a ground apparatus. The onboard apparatus includes a guide controller guiding a vehicle to enter a predetermined area through an entrance, a transmission controller transmitting a first wave, and a reception controller receiving a second wave obtained in response to the first wave. The ground apparatus includes a plurality of ground receivers arranged at a first position and a second position to receive the first wave, the first position and the second position corresponding to opposed ends of the entrance, and a plurality of first ground transmitters provided corresponding to the ground receivers and transmitting the second wave in a direction opposite to an entry direction of the vehicle. The guide controller determines an entry line to the entrance based on a change of a signal level of the second wave, the signal level changing depending on a vehicle position.