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:
Jan. 19, 2010
Filed:
Nov. 08, 2006
Applicants:
Andrew J. Adamec, Buford, GA (US);
John F. Crooks, Duluth, GA (US);
Inventors:
Andrew J. Adamec, Buford, GA (US);
John F. Crooks, Duluth, GA (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method, apparatus, and system for periodically measuring the level of ambient noise found on a radio frequency channel used by a radio frequency identification interrogator to read radio frequency identification tags. The ambient noise is measured after the radio frequency identification interrogator has transmitted a signal. The measured level of ambient noise is then used to dynamically adjust a threshold value used to predict collisions on the channel.