Upstream bandwidth conditioning device

摘要

An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system in or proximate to a premise of a user includes a main signal path divided into a forward path and a return path, the return path being divided into supplier side portion and a user side portion. The device further includes a supplier side termination device selectively connected to the supplier side portion by a supplier side termination switch, and a user side termination device selectively connected to the user side portion by a user side termination switch. A signal amplifier is selectively connected to the supplier side portion and the user side portion by at least one amplifier switch, and a switch controller is configured to actuate each of the supplier side termination switch, the user side termination switch, and the amplifier switch from a first position to a second position.

主权项

1. An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system in or proximate to a premise of a user, said device comprising:
a main signal path divided into a forward path and a return path, the return path being divided into a supplier side portion and a user side portion; at least one amplifier switch; a signal amplifier selectively connected to the supplier side portion and the user side portion by the at least one amplifier switch, wherein the signal amplifier is configured to increase an upstream bandwidth signal strength on the return path; a switch controller configured to actuate the amplifier switch from a first position to a second position; a supplier side termination switch; a supplier side termination device selectively connected to the supplier side portion by the supplier side termination switch, wherein the supplier side termination switch selectively connects the supplier side termination device to an output of the signal amplifier and a supplier side diplex filter so as to prevent amplification of undesirable interference signals on the return path; a user side termination switch; a user side termination device selectively connected to the user side portion by the user side termination switch, wherein the user side termination switch selectively connects the user side termination device to the at least one amplifier switch and a user side diplex filter so as to further prevent the amplification of the undesirable interference signals on the return path, and wherein the switch controller is configured to actuate each of the supplier side termination switch and the user side termination switch from a first position to a second position; and an amplifier energy switch selectively connecting an energy source to the signal amplifier for selectively energizing the signal amplifier.