Settop terminal controlled return path filter for minimizing noi

Details Settop terminal controlled return path filter for minimizing noi Settop terminal controlled return path filter for minimizing noi

1997-02-18

1999-08-10

Grant, Chris

Telecommunications

Interference signal transmission

348 12, H04N 7173

Patent

active

059373300

ABSTRACT:
A device which eliminates all RF ingress noise from entering the CATV network in the upstream communication path includes a shunt filter, a detector and a filter with a bandwidth equal to the bandwidth of the upstream communication path. The device monitors signals transmitted in the upstream bandwidth and detects when a valid upstream communication is being transmitted. Upon detection of this valid signal, the shunt filter is switched out of the upstream communication path to allow the valid transmission to be sent. When the end of the valid transmission is detected and a predetermined delay has lapsed, the shunt filter is switched to block all upstream transmissions in the upstream communication bandwidth.

REFERENCES:
patent: 3750022 (1973-07-01), Curry et al.
patent: 3835393 (1974-09-01), Marron
patent: 3924187 (1975-12-01), Dormans
patent: 4041531 (1977-08-01), Bingham
patent: 4520508 (1985-05-01), Reichert, Jr.
patent: 4982440 (1991-01-01), Dufresne et al.
patent: 5045816 (1991-09-01), Bramhall et al.
patent: 5142690 (1992-08-01), McMullan, Jr. et al.
patent: 5155590 (1992-10-01), Beyers, II et al.
patent: 5225902 (1993-07-01), McMullan, Jr.
patent: 5235619 (1993-08-01), Beyers, II et al.
patent: 5255086 (1993-10-01), McMullan, Jr. et al.
patent: 5390337 (1995-02-01), Jelinek et al.
patent: 5742713 (1998-04-01), Sanders et al.
patent: 5745836 (1998-04-01), Williams
patent: 5815794 (1998-09-01), Williams

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