Filter circuit receiving upstream signals for use in a CATV netw

Details Filter circuit receiving upstream signals for use in a CATV netw Filter circuit receiving upstream signals for use in a CATV netw

1990-10-25

1992-06-30

Eisenzopf, Reinhard J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

455 41, 455 51, 455 671, H04H 100

Patent

active

051268400

ABSTRACT:
A two-way CATV network which in the preferred embodiment uses gating upstream narrowband filters in the distribution lines and/or trunks to substantially reduce upstream noise gathering. The filters sense the upstream signal energy and open in the event the energy exceeds a predetermined threshold.

REFERENCES:
patent: 3750022 (1973-07-01), Curry et al.

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