UPSTREAM BANDWIDTH CONDITIONING DEVICE
First Claim
1. An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system on or proximate to a premise of a user, said device comprising:
- a main signal path;
a filter array comprising a plurality of discrete signal filters coupled to the main signal path, each of the signal filters being configured to reduce a signal level of at least one frequency portion of an upstream bandwidth; and
a controller configured to select between a plurality of filter operation states, in at least two of the filter operation states at least one of the signal filters is selected such that a signal level of a lower frequency portion of the upstream bandwidth and a signal level of a higher frequency portion of the upstream bandwidth are reduced by a greater amount than a signal level of an intermediate frequency portion, the intermediate frequency portion including frequencies arranged between the lower frequency portion and the higher frequency portion,wherein the intermediate frequency portion is larger in one of the filter operation states than in another of the filter operation states.
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Accused Products
Abstract
An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system on a premise of a user includes a main signal path and a filter array including a plurality of discrete signal filters coupled to the main signal path. Each of the signal filters is configured to reduce a signal level of at least one frequency portion of an upstream bandwidth. The device further includes a controller configured to select between a plurality of states. In at least two of the states at least one of the signal filters is selected such that a signal level of a lower frequency portion of the upstream bandwidth and a signal level of an higher frequency portion of the upstream bandwidth are reduced by a greater amount than a signal level of an intermediate frequency portion, which includes frequencies arranged between the lower frequency portion and the higher frequency portion.
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Citations
37 Claims
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1. An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system on or proximate to a premise of a user, said device comprising:
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a main signal path; a filter array comprising a plurality of discrete signal filters coupled to the main signal path, each of the signal filters being configured to reduce a signal level of at least one frequency portion of an upstream bandwidth; and a controller configured to select between a plurality of filter operation states, in at least two of the filter operation states at least one of the signal filters is selected such that a signal level of a lower frequency portion of the upstream bandwidth and a signal level of a higher frequency portion of the upstream bandwidth are reduced by a greater amount than a signal level of an intermediate frequency portion, the intermediate frequency portion including frequencies arranged between the lower frequency portion and the higher frequency portion, wherein the intermediate frequency portion is larger in one of the filter operation states than in another of the filter operation states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of conditioning an upstream bandwidth transmitted through a transmission line of a CATV system using a device located on a premise of a user, the method comprising:
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providing a main signal path; providing a filter array comprising a plurality of discrete signal filters coupled to the main signal path, each of the signal filters being configured to reduce a signal level of at least one frequency portion of an upstream bandwidth; selectively engaging at least one of the signal filters such that a signal level of a lower frequency portion of the upstream bandwidth and a signal level of an higher frequency portion of the upstream bandwidth are reduced by a greater amount than a signal level of an intermediate frequency portion, which includes frequencies arranged between the lower frequency portion and the higher frequency portion. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification