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Intrabuilding wireless communication system

  • US 4,940,990 A
  • Filed: 01/19/1989
  • Issued: 07/10/1990
  • Est. Priority Date: 01/19/1989
  • Status: Expired due to Fees
First Claim
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1. An intrabuilding wireless multi-access communication system for use within a work space, comprising an omni-directional antenna system transmitting coded signals and supplying radiation substantially only within a first zone occupying only a portion of said work space, a second zone substantially free of radiation and occupying substantially the remainder of said work space, said first zone being positioned adjacent to an upper boundary of said work space, work stations within said second zone, each of said work stations having a subscriber antenna system connected thereto, each said subscriber antenna system having a subscriber antenna positioned within said first zone and oriented relative to said omni-directional antenna to receive signals from said omni-directional antenna and transmit signals to said omni-directional antenna.

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