FRONT END MULTIPLEXER TOPOLOGY FOR A SET TOP BOX

An apparatus and method for processing satellite signals is provided. A switch (116) receives an input signal having a predetermined frequency range, the predetermined frequency range including at least two frequency sub-bands. A first diplexer (110) is connected to a first output of the switch (116...

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1. Verfasser: XIU, LINCHENG
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:An apparatus and method for processing satellite signals is provided. A switch (116) receives an input signal having a predetermined frequency range, the predetermined frequency range including at least two frequency sub-bands. A first diplexer (110) is connected to a first output of the switch (116) and generates a first filtered signal including a first frequency sub-band and a second frequency sub-band and a second filtered signal including a third frequency sub-band. A second diplexer (104) is connected to a second output of the switch (116) and generates a third filtered signal including the first frequency sub-band and a fourth filtered signal including the second frequency sub-band. A controller (602) activates the switch (116) to operate between a first mode and a second mode. In the first mode, the switch (116) provides the input signal to the first diplexer (110) to generate the first and second filtered signals, the first diplexer (110) provides the first filtered signal to the second diplexer (104) to generate the third and fourth filtered signals from the first filtered signal, the second filtered signal being provided to the controller (602) to derive a first type of data therefrom and the third and fourth filtered signals being provided to the controller (602) to derive a second different type of data therefrom. In the second mode, the switch (116) provides the input signal to the second diplexer (104) to generate the third and fourth filtered signals from the input signal, the second diplexer (104) provides the third and fourth input signal to the controller (602) to derive the second different type of data therefrom. La présente invention concerne un appareil et un procédé pour traiter des signaux émis par satellite. Un commutateur (116) reçoit un signal d'entrée ayant une plage de fréquences prédéterminée, la plage de fréquences prédéterminée comprenant au moins deux sous-bandes de fréquences. Un premier diplexeur (110) est connecté à une première sortie du commutateur (116) et génère un premier signal filtré comprenant une première sous-bande de fréquences et une deuxième sous-bande de fréquences et un deuxième signal filtré comprenant une troisième sous-bande de fréquences. Un second diplexeur (104) est connecté à une seconde sortie du commutateur (116) et génère un troisième signal filtré comprenant la première sous-bande de fréquences et un quatrième signal filtré comprenant la deuxième sous-bande de fréquences. Un dispositif de comma