Multipath mitigation circuit for home network
First Claim
1. A filter circuit having a frequency response, the filter circuit comprising:
- a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a provider bandwidth comprising a spectrum of frequencies carrying media content, and attenuate a home network bandwidth comprising an open spectrum of frequencies carrying personal data content; and
only one multipath interference mitigation leg operatively branched from only the user-side port of the signal path and terminating to a ground, the only one multipath interference mitigation leg configured to decrease multipath distortions in the home network bandwidth by improving a return loss characteristic at the user-side port;
wherein the frequency response is characterized by an insertion loss characteristic between the provider-side port and the user-side port, the insertion loss characteristic being less in the provider bandwidth than in the home network bandwidth;
wherein the frequency response is further characterized by the return loss characteristic at the user-side port being more than 10 decibels (dB) in the home network bandwidth; and
wherein the open spectrum of frequencies in the home network bandwidth is distinct from and is higher than the spectrum of frequencies in the provider bandwidth.
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Accused Products
Abstract
A filter circuit is provided having multipath interference mitigation. The filter includes a signal path extending from an input to an output. The signal path includes a conductive path and a ground. A pass band filter is disposed along the signal path between the input and the output. The pass band filter passes a first frequency spectrum in a provider bandwidth, and attenuates a second frequency spectrum in a home network bandwidth. The filter circuit further includes a multipath interference mitigation leg operatively branched from the signal path. The multipath interference mitigation leg increases a return loss of the home network bandwidth. A frequency response of the filter circuit is characterized by an insertion loss characteristic between the input and the output being less than 3 dB in the provider bandwidth, and more than 20 dB in the home network bandwidth.
174 Citations
24 Claims
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1. A filter circuit having a frequency response, the filter circuit comprising:
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a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a provider bandwidth comprising a spectrum of frequencies carrying media content, and attenuate a home network bandwidth comprising an open spectrum of frequencies carrying personal data content; and only one multipath interference mitigation leg operatively branched from only the user-side port of the signal path and terminating to a ground, the only one multipath interference mitigation leg configured to decrease multipath distortions in the home network bandwidth by improving a return loss characteristic at the user-side port; wherein the frequency response is characterized by an insertion loss characteristic between the provider-side port and the user-side port, the insertion loss characteristic being less in the provider bandwidth than in the home network bandwidth; wherein the frequency response is further characterized by the return loss characteristic at the user-side port being more than 10 decibels (dB) in the home network bandwidth; and wherein the open spectrum of frequencies in the home network bandwidth is distinct from and is higher than the spectrum of frequencies in the provider bandwidth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A filter circuit operable to have a frequency response, the filter circuit comprising:
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a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a provider bandwidth received at the provider-side port and attenuate a home network bandwidth received at the user-side port, the provider bandwidth comprising a spectrum of frequencies carrying media content, the home network bandwidth comprising an open spectrum of frequencies carrying personal data content, the open spectrum of frequencies being distinct from and higher than the spectrum of frequencies in the provider bandwidth; and a single multipath interference mitigation leg operatively coupled to the pass band filter portion, the single multipath interference mitigation leg being operatively branched from only one node on the signal path, the single multipath interference mitigation leg configured to reduce the strength of a secondary transmission path of the home network bandwidth by decreasing reflections of energy off the user-side port due to the pass band filter portion. - View Dependent Claims (15, 16, 17, 18)
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19. A filter circuit operable to have a frequency response, the filter circuit comprising:
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a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a provider bandwidth comprising a spectrum of frequencies carrying media content, and attenuate a home network bandwidth comprising an open spectrum of frequencies carrying personal data content; and a single multipath interference mitigation leg operatively branched from the user-side port of the signal path and not branched from the provider-side port, the single multipath interference mitigation leg configured to improve a return loss characteristic in the home network bandwidth at the provider-side port and the user-side port; wherein the open spectrum of frequencies in the home network bandwidth is distinct from and higher than the spectrum of frequencies in the provider bandwidth. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification