The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1998
Filed:
Dec. 30, 1996
James Frederick Bradley, Middletown, NJ (US);
Paul W Cooper, Red Bank, NJ (US);
AT&T Corp, Middletown, NJ (US);
Abstract
A proximity detector detects objects which may interfere with a wireless antenna beam. The proximity detector includes infrared sensors, sonar detectors, motion detectors and optical devices to determine a range and bearing of objects that may interfere with the antenna beam. When an object may be harmed or interfere with the antenna beam, an alarm may be activated to warn the user and/or the object of potential harm from the electro-magnetic energy transmitted by the directed antenna. Also, based on the proximity detector's outputs, an antenna beam pattern may be changed to reduce the power at the object or the transmitted power may be reduced to prevent harm to the object.