Cellular system for transmission of information by radio between an infrastructure and moving bodies
US5995845A · kind A · utility
10Cited by
9References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Oct 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The transmission system is designed for links between an infrastructure and moving bodies (10.sub.1, 10.sub.2) constrained to move along a determined path. The infrastructure has fixed transmitter/receiver stations distributed along the path, each having two transmitter/receivers allocated to two adjacent cells, e.g. (E'.sub.1, E.sub.2). The transmitters of two successive fixed stations allocated to the same cell are synchronized and they transmit using a coding system that is capable of tolerating or taking advantage of propagation over multiple paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.