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Frequency-hopping radio communications system

  • US 4,554,668 A
  • Filed: 05/20/1983
  • Issued: 11/19/1985
  • Est. Priority Date: 05/27/1982
  • Status: Expired due to Fees
First Claim
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1. A radio communications system comprising at least one master station and a plurality of slave stations, wherein information to be transmitted between said stations is in digital form, wherein a two-way link between any of said slave stations and a master station is established over a frequency-hopping channel in which transmission takes place in bursts of predetermined duration at different frequencies with said frequency-hopping channel being determined by a frequency-hopping pattern which is associated with each slave station, each slave station having an independent frequency-hopping pattern associated therewith and all of said frequency-hopping channels using frequencies selected from a pool of frequencies common to all of said channels, and wherein useful transmission bursts are synchronized for the system as a whole with each slave station being synchronized from data received from a master station.

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