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:
Apr. 04, 2000
Filed:
Sep. 29, 1997
Terry L Zimmerman, Lawrenceville, GA (US);
Andrew J Adamec, Duluth, GA (US);
NCR Corporation, Dayton, OH (US);
Abstract
An electronic price label (EPL) including a noisemaker to assist in locating the EPL. Besides a noisemaker, the EPL includes processing circuitry which activates the noisemaker upon receipt of a command from a computer. A method for locating an EPL includes the steps of providing a noisemaker within the EPL, and transmitting a first signal to the EPL including a command to activate the noisemaker from a computer. The method may additionally include the steps of providing a plurality of receiving antennae, determining locations of the receiving antennae, transmitting a second message to the EPL by a computer coupled to the receiving antennae, listening for a third message from the EPL in response to the second message by the computer, determining signal strengths of the third message at each of the receiving antennae, and determining an estimate of the location of the EPL from the signal strengths by the computer.