Frequency shift key control in video delivery systems
First Claim
1. A broadcast system for selectively delivering satellite video signals, comprising:
- an antenna for receiving the satellite video signals;
a plurality of amplifiers, coupled to the antenna, each amplifier receiving and amplifying specific satellite video signals based on an originating satellite for each of the satellite video signals;
a multiswitch, having a plurality of inputs and a plurality of outputs, wherein at least some of the inputs are coupled to the plurality of amplifiers in a respective fashion;
an interface, coupled to the multiswitch; and
at least one receiver, coupled to the interface, each receiver being coupled to the interface on a common connection to the interface, wherein each receiver requests a specific satellite video signal by sending a shift-keyed signal to the interface.
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Abstract
Broadcast systems for selectively delivering satellite video signals. A system in accordance with the present invention comprises an antenna for receiving the satellite video signals, a plurality of amplifiers, coupled to the antenna, each amplifier receiving and amplifying specific satellite video signals based on an originating satellite for each of the satellite video signals, a multiswitch, having a plurality of inputs and a plurality of outputs, wherein at least some of the inputs are coupled to the plurality of amplifiers in a respective fashion, an interface, coupled to the multiswitch, and at least one receiver, coupled to the interface, each receiver being coupled to the interface on a common connection to the interface, wherein each receiver requests a specific satellite video signal by sending a shift-keyed signal to the interface.
109 Citations
20 Claims
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1. A broadcast system for selectively delivering satellite video signals, comprising:
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an antenna for receiving the satellite video signals; a plurality of amplifiers, coupled to the antenna, each amplifier receiving and amplifying specific satellite video signals based on an originating satellite for each of the satellite video signals; a multiswitch, having a plurality of inputs and a plurality of outputs, wherein at least some of the inputs are coupled to the plurality of amplifiers in a respective fashion; an interface, coupled to the multiswitch; and at least one receiver, coupled to the interface, each receiver being coupled to the interface on a common connection to the interface, wherein each receiver requests a specific satellite video signal by sending a shift-keyed signal to the interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for selectively delivering satellite video signals to at least one Integrated Receiver Decoder (IRD), comprising:
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a multiswitch, having a plurality of inputs and a plurality of outputs, at least one input receiving a satellite video signal; and an interface, coupling the IRD to at least one output of the multiswitch through the interface on a single cable, wherein the interface selectively controls the flow of signals from the plurality of IRDs to the multiswitch on the interface and controls the flow of satellite signals to the plurality of IRDs based on shift-keyed commands from the IRDs to the interface on the single cable. - View Dependent Claims (14, 15, 16)
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17. A satellite signal delivery system, for selectively delivering satellite video signals, comprising:
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a multiswitch, having a plurality of inputs and a plurality of outputs, wherein at least some of the inputs receive satellite video signals from a plurality of satellites; an interface; and at least one receiver, coupled to the interface, each receiver being coupled to the interface on a single common connection to the interface, wherein each receiver requests a specific satellite video signal by sending a shift-keyed signal to the interface. - View Dependent Claims (18, 19, 20)
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Specification