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:
Oct. 20, 2009
Filed:
Jun. 05, 2006
Applicant:
Thorkild Hansen, Brighton, MA (US);
Inventor:
Thorkild Hansen, Brighton, MA (US);
Assignee:
Seknion, Inc., Brighton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01); G08G 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The disclosed inventions relate to a method and apparatus for creating one-sided interrogation zones. The disclosed inventions further relate to a method and apparatus for determining the direction of movement of tagged items that pass by an RFID reader. The disclosed inventions also relate to a method and apparatus for combining one-sided interrogation zones of two or more antenna arrays to create an interrogation zone that maintains its width over a large range of distances.