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. 23, 2021
Filed:
Jul. 13, 2018
Kyosan Electric Mfg. Co., Ltd., Yokohama, JP;
Social System Development Laboratory Co., Ltd., Tokyo, JP;
Akira Asano, Yokohama, JP;
Yuichirou Shimizu, Yokohama, JP;
Tomonori Itagaki, Kawasaki, JP;
Tetsuya Takata, Kanagawa, JP;
Hideo Nakamura, Tokyo, JP;
KYOSAN ELECTRIC MFG. CO., LTD., Yokohama, JP;
Social System Development Laboratory Co., Ltd., Tokyo, JP;
Abstract
An information transmission system includes a ground system provided to a track and an onboard system installed in a train. The ground system includes two (M=2) track antennae selected from N types of track antennae with different resonance frequencies. The two track antennae are arranged side by side in a left and right direction relative to a traveling direction of the train. When the train passes through a position where the ground system is provided, the onboard system detects the two track antennae at once and can determine the resonance frequencies of the track antennae.