System and method in a broadband receiver for efficiently receiving and processing signals
View Patent ↗A system and method in a broadband receiver (e.g., a satellite television receiver) for efficiently receiving and processing signals, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.
1. A satellite dish system for receiving satellite signals, said satellite dish system comprising:
a low noise block downconverter (LNB) operable to, at least, downconvert a received satellite signal to an IF signal; and
at least one module communicatively coupled to said LNB and housed with said LNB, wherein:
said module comprises a first full-band capture receiver operable to, at least:
receive a first IF signal from said LNB; and
digitize the received first IF signal over all frequencies of the first IF signal that are used for communicating satellite television signals to generate a first digitized signal;
said module comprises a second full-band capture receiver operable to, at least:
receive a second IF signal from said LNB; and
digitize the received second IF signal over all frequencies of the second IF signal that are used for communicating satellite television signals to generate a second digitized signal;
encapsulate at least a portion of said first digitized signal and said second digitized signal in IP packets; and
communicate said IP packets to a device external to said satellite dish system.
2. The satellite dish system of claim 1 , wherein said at least one module comprises a digital channelizer communicatively coupled to said first and second full-band capture receivers and operable to, at least:
receive said first digitized signal from said first full-band capture receiver, the first digitized signal comprising a first plurality of channels;
receive said second digitized signal from said second full-band capture receiver, the second digitized signal comprising a second plurality of channels;
select a portion of the first and second pluralities of channels; and
output one or more digital signals comprising the selected portion of the first and second pluralities of channels.
3. The satellite dish system of claim 2 , wherein said digital channelizer comprises a polyphase filter and is operable to utilize said polyphase filter to select the portion of the first and second pluralities of channels.
4. The satellite dish system of claim 2 , wherein said digital channelizer comprises an FFT engine and is operable to select the portion of the first and second pluralities of channels by, at least in part, utilizing said FFT engine to calculate a running FFT of the received first and second digitized signals received from said first and second full-band capture receivers, and selecting outputs of said FFT engine for further processing.
5. The satellite dish system of claim 2 , where said one or more digital signals comprising the selected portion of the first and second pluralities of channels is a single digital signal comprising the selected portion of the first and second pluralities of channels.
6. The satellite dish system of claim 2 , wherein said at least one module comprises a plurality of demodulators communicatively coupled to said digital channelizer and operable to, at least
receive the output one or more digital signals from said digital channelizer;
convert the output one or more digital signals received from said digital channelizer to one or more transports streams; and
output the one or more transport streams.
7. The satellite dish system of claim 6 , wherein said at least one module comprises an IP bridge communicatively coupled to said plurality of demodulators and operable to encapsulate at least a portion of the one or more transport streams in said IP packets.
8. The satellite dish system of claim 1 , wherein said first and second full-band capture receivers capture substantially identical frequency bands.
9. The satellite dish system of claim 1 , wherein said at least one module comprises an IP bridge operable to perform said encapsulation.
10. The satellite dish system of claim 9 , wherein said IP bridge is operable to perform packet identification (PID) filtering to select said portion of the first digitized signal and the second digitized signal for said encapsulation in said IP packets.
11. The satellite dish system of claim 1 , wherein said at least one module comprises a communication interface module operable to perform said communication.
12. The satellite dish system of claim 11 , wherein said communication interface module is operable to communicate the IP packets to the device external to the satellite dish system utilizing a communication protocol specifically adapted for communication with in-home devices over a television cable medium.
13. The satellite dish system of claim 1 , where the device external to the satellite dish system is an in-the-home device.
14. The satellite dish system of claim 13 , where the device external to the satellite dish system is a home gateway.
15. The satellite dish system of claim 13 , where the device external to the satellite dish system is different from a set top box.
16. The satellite dish system of claim 13 , where the device external to the satellite dish system is a network controller of an in-the-home communication network.
17. The satellite dish system of claim 1 , where the device external to the satellite dish system is a general purpose data communication device that is not specifically adapted for satellite communication.