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High bit rate infrared communication system for overcoming multipath

  • US 5,371,623 A
  • Filed: 07/01/1992
  • Issued: 12/06/1994
  • Est. Priority Date: 07/01/1992
  • Status: Expired due to Fees
First Claim
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1. For use in a infrared (IR) communication system having a first terminal and a second terminal for communicating data there between by means of a light signal communication path, such communication being subject to substantial multipath interference caused by the reception of multiple signals having differential path delays exceeding a substantial fraction of the data symbol duration, at least a first terminal, comprising:

  • a plurality of IR device arrays for receiving IR signals in relatively narrow IR field of view sectors; and

    selection means, coupled to said plurality of IR device arrays, for selecting one of said plurality of IR device arrays, based at least partly on received IR signal quality, so as to overcome reception errors caused by multipath interference.

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