Inter-car optical coupling
US5450226A · kind A · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Jan 29, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1143
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus enabling electrically-isolated transfer of signal data between rail cars connected in tandem in the direction of intended travel. Cable-free space is established between optical transmitter and optical receiver means enabling automatic optical coupling and decoupling. Means are provided to maintain signal intensity and accuracy of signal data transfer notwithstanding changes in alignment and spacing between transmitters and receivers during rail guided travel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.