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. 07, 2004
Filed:
Jul. 10, 2003
Kenji Oguma, Hitachi, JP;
Atsushi Kawabata, Hitachi, JP;
Korefumi Tashiro, Hitachi, JP;
Michio Fujiwara, Hitachinaka, JP;
Shinya Tanifuji, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A train detection system and method in which a transmitter transmits a train detecting signal, a receiver receives the train detecting signal, and a control device on the ground which is connectable to the transmitter and transmits the train detecting signal to the transmitter and receives the train detecting signal from the receiver. The transmitter adds first unique code data to the train detecting signal transmitted from control device on the ground and the receiver adds second unique code data to the train detecting signal. The control device on the ground collates whether the first unique code data and the second unique code data received from said receiver coincide with predetermined data contents.