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:
May. 08, 2001
Filed:
May. 07, 1998
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 is capable of realizing reliable train detection with a train detection apparatus of simple construction using a track circuit. This is attained by a transmitter,adding data of a first unique code to a train detecting signal received from wayside controller,and transmitting it to a track circuit; a receiver,adding data of a second unique code to the train detecting signal added with the first unique code data received from the track circuit and transmitting it to the wayside controller,and the wayside controller,checking whether or not the data received from the receiver,agrees with predetermined data.