Device, system, and method of discriminately handling a wideband transmission in a communication network
Embodiments of the invention provide a method, device and system of discriminately handling a wideband transmission including a legacy frequency signal of a legacy frequency band and an extended frequency signal of an extended frequency band. In some demonstrative embodiments a signal discrimination device includes a signal adjustment module to generate an adjusted signal corresponding to the legacy frequency signal; a first multiplexer to selectively route the legacy frequency signal from a first terminal of the signal discrimination device to the signal adjustment module; and a second multiplexer to selectively route the adjusted signal to a second terminal of the signal discrimination device, wherein the first multiplexer is able to selectively route an extended frequency signal of the extended frequency band from the first terminal to the second multiplexer, and wherein the second multiplexer is able to selectively route the extended signal to the second terminal. Other embodiments are described and claimed.
1 . A signal discrimination device for discriminately handling a wideband transmission including a legacy frequency signal of a legacy frequency band and an extended frequency signal of an extended frequency band, the signal discrimination device comprising:
first and second terminals;
a signal adjustment module to generate an adjusted signal corresponding to said legacy frequency signal;
a first multiplexer to route said legacy frequency signal from said first terminal to said signal adjustment module; and
a second multiplexer to route said adjusted signal to said second terminal, wherein said first multiplexer is able to route said extended frequency signal of said extended frequency band from said first terminal to said second multiplexer, and wherein said second multiplexer is able to route said extended frequency signal to said second terminal.
2 . The signal discrimination device of claim 1 , wherein said first multiplexer is able to route an AC power signal from said first terminal to said signal adjustment module, wherein said signal adjustment module comprises one or more RF chokes to selectively route said AC power signal to said second multiplexer, and wherein said second multiplexer is able to route said AC power signal from said signal adjustment module to said second terminal.
3 . The signal discrimination device of claim 1 , wherein at least one of said first and second multiplexers comprises:
a low-pass filter to selectively transfer said legacy frequency signal; and
a high-pass filter to selectively transfer said extended frequency signal.
4 . The signal discrimination device of claim 3 , wherein said low-pass filter is able to transfer a signal of a frequency of 860 MHz or less, and wherein said high-pass filter is able to transfer a signal of a frequency of at least 1250 MHz.
5 . The signal discrimination device of claim 1 , wherein said signal adjustment module comprises a compensator to compensate a power of said legacy frequency signal.
6 . The signal discrimination device of claim 5 , wherein said compensator comprises:
an equalizer to generate an equalized downstream signal corresponding to a legacy downstream signal of said legacy frequency band;
an attenuator to generate an attenuated upstream signal corresponding to a legacy upstream signal of said legacy frequency band;
a third multiplexer to route said legacy downstream signal from said first multiplexer to said equalizer, and to route said attenuated upstream signal from said attenuator to said first multiplexer; and
a fourth multiplexer to route said equalized downstream signal from said equalizer to said second multiplexer, and to route said legacy upstream signal from said second multiplexer to said attenuator.
7 . The signal discrimination device of claim 6 , wherein at least one of said third and fourth multiplexers comprises:
a low-pass filter to selectively transfer said legacy upstream signal; and
a high-pass filter to selectively transfer said legacy downstream signal.
8 . The signal discrimination device of claim 7 , wherein said low-pass filter is able to transfer a signal of a frequency of between about 5 and 42 MHz; and wherein said high-pass filter is able to transfer a signal of a frequency of between about 52 and 860 MHz.
9 . The signal discrimination device of claim 5 , wherein said compensator comprises:
an equalizer to generate an equalized downstream signal corresponding to a legacy downstream signal of said legacy frequency band;
a third multiplexer to route said legacy downstream signal from said first multiplexer to said equalizer; and
a fourth multiplexer to route said equalized downstream signal from said equalizer to said second multiplexer.
10 . The signal discrimination device of claim 5 , wherein said compensator comprises:
an attenuator to generate an attenuated upstream signal corresponding to a legacy upstream signal of said legacy frequency band;
a third multiplexer to route said attenuated upstream signal from said attenuator to said first multiplexer; and
a fourth multiplexer to route said legacy upstream signal from said second multiplexer to said attenuator.
11 . The signal discrimination device of claim 1 , wherein said signal adjustment module comprises a filter to filter said legacy frequency signal.
12 . A wideband cable television network supporting a legacy frequency band and an extended frequency band, the network comprising:
a signal discrimination device including:
a signal adjustment module to generate an adjusted signal corresponding to a legacy frequency signal of said legacy frequency band;
a first multiplexer to route said legacy frequency signal from a first terminal of said signal discrimination device to said signal adjustment module; and
a second multiplexer to route said adjusted signal to a second terminal of said signal discrimination device,
wherein said first multiplexer is able to route an extended frequency signal of said extended frequency band from said first terminal to said second multiplexer, and wherein said second multiplexer is able to route said extended frequency signal to said second terminal; and
at least one transmission cable to transfer said legacy frequency signal to said signal discrimination device.
13 . The wideband cable television network of claim 12 , wherein at least one of said first and second multiplexers comprises:
a low-pass filter to selectively transfer said legacy frequency signal; and
a high-pass filter to selectively transfer said extended frequency signal.
14 . The wideband cable television network of claim 12 , wherein said signal adjustment module comprises a compensator to compensate a power of said legacy frequency signal.
15 . The wideband cable television network of claim 14 , wherein said compensator comprises:
an equalizer to generate an equalized downstream signal corresponding to a legacy downstream signal of said legacy frequency band;
an attenuator to generate an attenuated upstream signal corresponding to a legacy upstream signal of said legacy frequency band;
a third multiplexer to route said legacy downstream signal from said first multiplexer to said equalizer, and to route said attenuated upstream signal from said attenuator to said first multiplexer; and
a fourth multiplexer to route said equalized downstream signal from said equalizer to said second multiplexer, and to route said legacy upstream signal from said second multiplexer to said attenuator.
16 . The wideband cable television network of claim 12 , wherein at least one of said third and fourth multiplexers comprises:
a low-pass filter to selectively transfer said legacy upstream signal; and
a high-pass filter to selectively transfer said legacy downstream signal.
17 . A method of discriminately handling a wideband transmission of a cable communication network, the transmission including a legacy frequency signal of a legacy frequency band and an extended frequency signal of an extended frequency band, the method comprising:
receiving said wideband transmission;
selectively adjusting said legacy frequency signal to generate an adjusted legacy frequency signal; and
routing said adjusted legacy frequency signal and said extended frequency signal to said network.
18 . The method of claim 17 , wherein selectively adjusting said legacy frequency signal comprises selectively routing said legacy frequency signal to a signal adjustment module.
19 . The method of claim 17 , comprising:
selectively transferring said legacy frequency signal through a low-pass filter; and
selectively transferring said extended frequency signal through a high-pass filter.
20 . The method of claim 17 , wherein selectively adjusting said legacy frequency signal comprises:
equalizing a legacy downstream signal of said legacy frequency band to generate an equalized downstream signal; and
attenuating a legacy upstream signal of said legacy frequency band to generate an attenuated upstream signal.
21 . The method of claim 20 , comprising:
selectively transferring said legacy upstream signal through a low-pass filter; and
selectively transferring said legacy downstream signal through a high-pass filter.