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Frequency hopping communication system

  • US 4,193,030 A
  • Filed: 08/01/1968
  • Issued: 03/11/1980
  • Est. Priority Date: 08/01/1968
  • Status: Expired due to Term
First Claim
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1. A communication system comprising:

  • first means to generate a selected code signal;

    second means coupled to said first means to produce a first signal having a phase selected according to the code condition of said selected code signal;

    third means coupled to said first means to produce a second signal having a frequency that hops to different ones of a plurality of discrete frequencies as determined by said selected code signal; and

    a first intelligence signal coupled to one of said second and third means to modulate one of said first and second signals;

    said second and third means being interconnected to provide a first propagation signal modulated by said first intelligence signal having a frequency hopping characteristic and a selected phase in each frequency hop interval.

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