Distributed antenna system
USRE35736E · kind E · reissue
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC —)General
Abstract
The present invention provides a distributed antenna system comprising a primary antenna (14A, 16A) and a plurality of secondary antennas (36, 40), a ..fibre.!. .Iadd.fiber .Iaddend.optic network (20, 22) connected between the primary antenna (14A, 16A) and the secondary antennas (36, 40), first means (..16.!. .Iadd.24.Iaddend., 44) associated with a first one of the antennas (16A, 40) which transmits signals received by that antenna (16A, 40) into the ..fibre.!. .Iadd.fiber .Iaddend.optic network (20, 22), and second means (32, 50) associated with a second one of the antennas (14A, 36) which causes that antenna (14A, 36) to transmit signals received by the second means (32, 50) from the ..fibre.!. .Iadd.fiber .Iaddend.optic network (20, 22). Preferably, the use of a heterodyne circuit is avoided and the light signals travelling within the ..fibre.!. .Iadd.fiber .Iaddend.optic networks (20, 22) are modulated at radio frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.