| 摘要 |
This disclosure relates generally to community access or cable television (CATV) signals and to in-home entertainment signals sharing a CATV distribution network. A low-pass filter is disclosed which can be used to restrict in-home entertainment signals that are using the CATV distribution network from leaving a subscriber premise network. The low-pass filter is placed at an entry port of a CATV subscriber premise network. The low-pass filter allows both upstream and downstream CATV signal frequency bands to enter and exit the subscriber premise network. The low-pass filter blocks signals in the in-home entertainment frequency band from exiting the subscriber premise network. The low-pass filter includes at least one LC resonant circuit element, and at least one mechanical resonant circuit element. The low-pass filter is sized small enough that it can fit in existing CATV equipment.
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