Ingress noise inhibiting network interface device and method...

Details Ingress noise inhibiting network interface device and method... Ingress noise inhibiting network interface device and method...

H - Electricity

04

L

H04L 12/66 (2006.01) H04L 29/12 (2006.01) H04M 11/06 (2006.01) H04N 5/21 (2006.01) H04N 7/10 (2006.01) H04N 5/44 (2006.01) H04N 7/173 (2006.01)

Patent

CA 2679893

Ingress noise from subscriber equipment is mitigated or prevented from reaching a cable television (CATV) network. All upstream signals including ingress noise are initially transmitted to the CATV network whenever their instantaneous power exceeds a threshold which typically distinguishes ingress noise from a valid upstream signal. Whenever the instantaneous power is below the threshold, ingress noise is blocked from reaching the CATV network. A gas tube surge protection device is included to resist component destruction and malfunction arising from lightning strikes and other high voltage, high current surges.

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