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:
Aug. 31, 2004
Filed:
May. 15, 2000
Applicant:
Inventors:
Raymond Catherall Atkins, Pretoria, ZA;
Mario Alphonso Marais, Pretoria, ZA;
Hendrik Van Zyl Smit, Pretoria, ZA;
Assignee:
BTG International Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 5/22 ;
U.S. Cl.
CPC ...
H04Q 5/22 ;
Abstract
A method and system for identifying a plurality of transponders in an interrogation involves transmitting an interrogation signal to the transponders and receiving, at a reader, response signals from the transponders. Each transponder period, and alters the maximum length of the waiting period during the interrogation process.