Reflection-less in-home network adapter

Abstract

A system includes an input and a plurality of outputs. The system also includes an in-home network adapter configured to connect to and be positioned between the input and the plurality of outputs. The system also includes a splitter configured to connect to and be positioned between the in-home network adapter and the plurality of outputs. The input is configured to receive signals in a first bandwidth and signals in a second bandwidth. The in-home network adapter is configured to allow the signals in the second bandwidth to pass from the input to the plurality of outputs and from the plurality of outputs to the input. The in-home network adapter is configured to attenuate or prevent the signals in the first bandwidth from passing from the input to the plurality of outputs, from the plurality of outputs to the input, or both.

What is claimed is: 
     
         1 . A system configured to provide an enhanced noise reduction, comprising:
 an input;   a plurality of outputs;   a network adapter configured to connect to and be positioned between the input and the plurality of outputs;   a splitter configured to connect to and be positioned between the network adapter and the plurality of outputs;   wherein the input is configured to receive signals in a first bandwidth and signals in a second bandwidth;   wherein the network adapter is configured to allow the signals in the second bandwidth to pass from the input to the plurality of outputs and from the plurality of outputs to the input;   wherein the network adapter is configured to attenuate or prevent the signals in the first bandwidth from passing from the input to the plurality of outputs, from the plurality of outputs to the input, or both; and   wherein the network adapter is configured to cause a return loss at the input to be in a first predetermined range in the first bandwidth and in a second predetermined range in the second bandwidth without a bridge circuit, such that noise is reduced for signals in the second bandwidth passing between the input and at least one of the outputs.   
     
     
         2 . The system of  claim 1 , wherein the network adapter comprises a diplexer comprising a high-pass filter and a low-pass filter. 
     
     
         3 . The system of  claim 1 , wherein the first bandwidth is a cable television (CATV) bandwidth and the second bandwidth is a multimedia over coax alliance (MoCA) bandwidth. 
     
     
         4 . The system of  claim 2 , wherein the high-pass filter and the low-pass filter have a common input and a common output such that the high-pass filter and the low pass filter are connected in parallel. 
     
     
         5 . The system of  claim 2 , wherein the low-pass filter comprises two low-pass filter portions and an attenuator circuit that are connected in series with the attenuator circuit positioned between the two low-pass filter portions. 
     
     
         6 . The system of  claim 1 , wherein the first predetermined range is greater than 20 dB. 
     
     
         7 . The system of  claim 1 , wherein the second predetermined range is between about 5 dB and about 20 dB. 
     
     
         8 . The system of  claim 1 , wherein the network adapter is configured to cause a return loss at one of the plurality of outputs to be in a third predetermined range in the first bandwidth, and wherein the third predetermined range is between about 0 dB and about 45 dB. 
     
     
         9 . The system of  claim 1 , wherein the network adapter is configured to cause a return loss at one of the plurality of outputs to be in a third predetermined range in the second bandwidth, and wherein the third predetermined range is between about 18 dB and about 42 dB. 
     
     
         10 . The splitter of  claim 9 , wherein the network adapter is configured to cause an insertion loss between the input and the one of the plurality of outputs to be in a third predetermined range in the first bandwidth, and wherein the third predetermined range is greater than about 40 dB. 
     
     
         11 . The system of  claim 1 , wherein the network adapter is configured to cause an insertion loss between the input and the one of the plurality of outputs to be in a third predetermined range in the second bandwidth, and wherein the third predetermined range is between about 15 dB and about 25 dB. 
     
     
         12 . A splitter configured to provide an enhanced noise reduction, comprising:
 a network adapter configured to be connected to and be positioned between an input and a plurality of outputs;   wherein the network adapter is configured to attenuate or prevent signals in a first bandwidth from passing from between the input to the plurality of outputs; and   wherein the network adapter is configured to cause a return loss at the input to be in a first predetermined range in the first bandwidth and in a second predetermined range in a second bandwidth different from the first bandwidth without a bridge circuit, such that noise is reduced for signals in the second bandwidth passing between the input and at least one of the outputs.   
     
     
         13 . The splitter of  claim 12 , wherein the network adapter is configured to allow the signals in the second bandwidth to pass from the input to the plurality of outputs and from the plurality of outputs to the input. 
     
     
         14 . The splitter of  claim 12 , wherein the network adapter comprises a diplexer comprising a high-pass filter and a low-pass filter. 
     
     
         15 . The splitter of  claim 14 , wherein the high-pass filter and the low-pass filter have a common input and a common output such that the high-pass filter and the low pass filter are connected in parallel. 
     
     
         16 . The splitter of  claim 14 , wherein the low-pass filter comprises two low-pass filter portions and an attenuator circuit that are connected in series with the attenuator circuit positioned between the two low-pass filter portions. 
     
     
         17 . The splitter of  claim 12 , further comprising a splitter device configured to connect to and be positioned between the network adapter and the plurality of outputs. 
     
     
         18 . The splitter of  claim 17 , further comprising:
 a first resistor configured to connect to and be positioned between the network adapter and the splitter device; and   a plurality of second resistors, wherein one of the plurality of second resistors is configured to connect to and be positioned between the splitter device and each of the plurality of outputs.   
     
     
         19 . The splitter of  claim 12 , wherein the first predetermined range is greater than 20 dB. 
     
     
         20 . The splitter of  claim 12 , wherein the second predetermined range is between about 5 dB and about 20 dB. 
     
     
         21 . The splitter of  claim 12 , wherein the network adapter is configured to cause a return loss at one of the plurality of outputs to be in a third predetermined range in the first bandwidth, and wherein the third predetermined range is between about 0 dB and about 45 dB. 
     
     
         22 . The splitter of  claim 12 , wherein the network adapter is configured to cause a return loss at one of the plurality of outputs to be in a third predetermined range in the second bandwidth, and wherein the third predetermined range is between about 18 dB and about 42 dB. 
     
     
         23 . The splitter of  claim 22 , wherein the network adapter is configured to cause an insertion loss between the input and the one of the plurality of outputs to be in a third predetermined range in the first bandwidth, and wherein the third predetermined range is greater than about 40 dB. 
     
     
         24 . The splitter of  claim 12 , wherein the network adapter is configured to cause an insertion loss between the input and the one of the plurality of outputs to be in a third predetermined range in the second bandwidth, and wherein the third predetermined range is between about 15 dB and about 25 dB. 
     
     
         25 . A splitter configured to provide an enhanced noise reduction, comprising:
 attenuating means configured to be connected to and be positioned between an input and a plurality of outputs of the splitter, the attenuating means for attenuating or preventing signals in a first bandwidth from passing from the input to the plurality of outputs; and   return loss means for causing a return loss at the input to be in a first predetermined range in the first bandwidth and in a second predetermined range in a second bandwidth without a bridge circuit, such that noise is reduced for signals in the second bandwidth passing between the input and at least one of the outputs.   
     
     
         26 . The splitter of  claim 25 , wherein the first bandwidth is a cable television (CATV) bandwidth and the second bandwidth is a multimedia over coax alliance (MoCA) bandwidth. 
     
     
         27 . The splitter of  claim 25 , wherein the attenuating means and the return loss means comprise a network adapter. 
     
     
         28 . The splitter of  claim 27 , wherein the return loss means comprises a network adapter. 
     
     
         29 . The splitter of  claim 26 , wherein the network adapter is configured to allow the signals in the MoCA bandwidth to pass from the input to the plurality of outputs and from the plurality of outputs to the input. 
     
     
         30 . The splitter of  claim 25 , wherein the network adapter comprises a diplexer comprising a high-pass filter and a low-pass filter. 
     
     
         31 . The splitter of  claim 25 , wherein the high-pass filter and the low-pass filter have a common input and a common output such that the high-pass filter and the low pass filter are connected in parallel. 
     
     
         32 . The splitter of  claim 31 , wherein the low-pass filter comprises two low-pass filter portions and an attenuator circuit that are connected in series with the attenuator circuit positioned between the two low-pass filter portions. 
     
     
         33 . The splitter of  claim 25 , wherein the first predetermined range is greater than 20 dB. 
     
     
         34 . The splitter of  claim 25 , wherein the second predetermined range is between about 5 dB and about 20 dB. 
     
     
         35 . The splitter of  claim 26 , wherein the network adapter is configured to cause a return loss at one of the plurality of outputs to be in a third predetermined range in the CATV bandwidth, and wherein the third predetermined range is between about 0 dB and about 45 dB. 
     
     
         36 . The splitter of  claim 26 , wherein the network adapter is configured to cause a return loss at one of the plurality of outputs to be in a third predetermined range in the MoCA bandwidth without the bridge circuit, and wherein the third predetermined range is between about 18 dB and about 42 dB. 
     
     
         37 . The splitter of  claim 26 , wherein the network adapter is configured to cause an insertion loss between the input and the one of the plurality of outputs to be in a third predetermined range in the CATV bandwidth, and wherein the third predetermined range is greater than about 40 dB. 
     
     
         38 . The splitter of  claim 26 , wherein the network adapter is configured to cause an insertion loss between the input and the one of the plurality of outputs to be in a third predetermined range in the MoCA bandwidth without the bridge circuit, and wherein the third predetermined range is between about 15 dB and about 25 dB.