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Pneumatic-based communications system

  • US 20020153765A1
  • Filed: 03/25/2002
  • Published: 10/24/2002
  • Est. Priority Date: 03/23/2001
  • Status: Active Grant
First Claim
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1. An apparatus for communicating information between a plurality of serial nodes linked by a fluid-containing enclosure, said apparatus comprising:

  • a first fluid pressure transducer in fluid communication with the fluid-containing enclosure at a first one of the plurality of serial nodes;

    a second fluid pressure transducer in fluid communication with the fluid-containing enclosure at a second one of the plurality of serial nodes;

    wherein at least one of said first and said second fluid pressure transducers induces pressure variations in the fluid-containing enclosure, and wherein at least one of said first and said second fluid pressure transducers senses pressure variations in the fluid-containing enclosure; and

    wherein said pressure variations propagate through the fluid-containing enclosure to convey information between the first one of the plurality of nodes and the second one of the plurality of nodes.

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