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Spread spectrum communications method and apparatus

  • US 4,291,409 A
  • Filed: 07/18/1978
  • Issued: 09/22/1981
  • Est. Priority Date: 06/20/1978
  • Status: Expired due to Term
First Claim
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1. A spread spectrum communications system for use with a communications network having a wide bandwidth linear repeater channel comprisinga transmitting element havingmeans for repetitively generating a plural binary digit message signal for a sequence of binary input data, different input data resulting in different message signals andmodulation means for generating from said message signal a spread spectrum transmission signal, said transmission signal being adapted to be transmitted as a pseudo-noise signal simultaneously with a plurality of nonspread spectrum communications signals over said wide bandwidth repeater channel, said channel being dedicated to receiving and retransmitting said plurality of nonspread spectrum communication signals unrelated to said spread spectrum signal, anda receiver station for receiving said spread spectrum transmission signal, as retransmitted by said repeater channel, and for reconstructing said input data from said received retransmitted transmission signal.

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