Browse Prior Art Database

Locating and Isolating Ingress Noise Sources in the Cable Network Upstream Channels

IP.com Disclosure Number: IPCOM000119133D
Original Publication Date: 1997-Dec-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 20K

Publishing Venue

IBM

Related People

Chan, S: AUTHOR [+6]

Abstract

Disclosed is a system which locates the components which are injecting ingress noise to the upstream channel and isolates such components to make the rest of the cable network usable.

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This is the abbreviated version, containing approximately 100% of the total text.

Locating and Isolating Ingress Noise Sources in the Cable Network
Upstream Channels

      Disclosed is a system which locates the components which are
injecting ingress noise to the upstream channel and isolates such
components to make the rest of the cable network usable.

      Cable operators today are upgrading their cable network to
provide services which require a return path (upstream)
communication, such as internet access.  Injection of some ingress
noise into a cable network will corrupt all signals transmitted to
the headend due to the merging of signals toward the headend.
Therefore, it  is critical to locate the ingress noise source and
isolate the problem  component as quickly as possible so that the
rest of the cable network  could be made available.