H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 3/46 (2006.01) H03F 1/52 (2006.01) H03F 3/68 (2006.01) H04B 3/36 (2006.01) H04N 7/10 (2006.01) H04N 17/00 (2006.01)
Patent
CA 2251979
An intermediate amplifier device (20) with a signal amplification stage (21) in a transmission network in which signals can be transmitted from a central station (23) to a number of receivers (24) by way of a number of transmission lines, which are connected to one another in a tree structure, witha number of intermediate amplifier devices of the same type is characterized in that the intermediate amplifier device has a detection device (22) for detectinga malfunction (28) in the transmission line (27) connected to the intermediate amplifier device, a switching device (26) for coupling and uncoupling the transmission line (27) to or from the central station, as well as a delay element (25) with a delay time t i for the delayed reaction to a malfunction detected bythe detection device (22) by means of a correspondingly delayed actuation of the switching device. As a result, in the event of a malfunction, only the last intermediate amplifier device before the malfunctioning line section as well as subsequent line parts possibly connected to it are affected, but not network sections that do not receive their signals by way of the affected intermediate amplifier device. Furthermore, the localization of the malfunction is made easier.
Alcatel
Robic
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