Invention Grant
- Patent Title: Railway-train communication apparatus
- Patent Title (中): 铁路列车通讯设备
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Application No.: US12531891Application Date: 2008-03-17
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Publication No.: US08488617B2Publication Date: 2013-07-16
- Inventor: Masayuki Takeyama , Shogo Tatsumi , Minoru Yoshida
- Applicant: Masayuki Takeyama , Shogo Tatsumi , Minoru Yoshida
- Applicant Address: JP Chiyoda-Ku, Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2007-073365 20070320
- International Application: PCT/JP2008/054898 WO 20080317
- International Announcement: WO2008/114777 WO 20080925
- Main IPC: H04L12/28
- IPC: H04L12/28
Abstract:
A railway-train communication apparatus transmits a first transmission signal flowing through an inter-car network between cars of a railway train and a second transmission signal flowing through an in-car network in each of the cars. A node device includes a first signal converter and a second signal converter that perform a signal conversion between the first transmission signal and the second transmission signal and a layer 2 switch arranged between the first signal converter and the second signal converter for connecting the first signal converter and the second signal converter. A first controller is connected to the layer 2 switch.
Public/Granted literature
- US20100091663A1 RAILWAY-TRAIN COMMUNICATION APPARATUS Public/Granted day:2010-04-15
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