Communication apparatus, communication method and installation method of railway vehicle-facility intra communication system
US7336156B2 · kind B2 · utility
36Cited by
2References
67Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Nov 12, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication apparatus installed in the trains and that in a complex station building, a station or a maintenance factory communication through feeders, trolley wires or third rails can communicate each other. The present invention can realize a low cost vehicle-facility intra communication system that provides various information services available in the train.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.