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High efficiency signaling with minimum spacecraft hardware

  • US 6,049,566 A
  • Filed: 07/24/1997
  • Issued: 04/11/2000
  • Est. Priority Date: 07/24/1997
  • Status: Expired due to Term
First Claim
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1. A method for communicating input data channels through a satellite, the method comprising:

  • (a) block encoding input data channels to produce a block encoded uplink data stream;

    (b) modulating said block encoded uplink data stream to produce a modulated uplink data stream;

    (c) transmitting said modulated uplink data stream to a satellite;

    (d) demodulating said modulated uplink data stream in said satellite to produce a recovered block encoded uplink data stream;

    (e) convolutionally encoding in said satellite said recovered block encoded uplink data stream without decoding the recovered block encoded uplink data stream to produce a concatenated coded downlink data stream;

    (f) modulating said concatenated coded downlink data stream to produce a modulated downlink data stream;

    (g) transmitting said modulated downlink data stream to a receiver.

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