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. 31, 2017
Filed:
May. 31, 2011
Hannu Karhuketo, Tuusula, FI;
Gregory Wright, Fair Haven, NJ (US);
Hannu Karhuketo, Tuusula, FI;
Gregory Wright, Fair Haven, NJ (US);
MARISENSE OY, Vantaa, FI;
Abstract
An arrangement for reducing interference in a wireless electronic shelf label (ESL) () having a layered structure the ESL comprising: a display layer () comprising display material, a circuit board () with a backplane material structure and an antenna (), and a circuit board arrangement with control electronics for controlling the operation of the label, such as the display and the radio communication, and a resilient layer having a space for a rigid component, such as a battery, wherein said resilient layer is arranged to provide a substantially even total thickness of said label (), wherein the radio communication control further comprises means for radio frequency communication via modulated backscatter, wherein the arrangement is ring resonator arrangement isolating the ESL from the electrically conducting shelf arranged on the antenna circuit board, the ring resonator arrangement comprising a plurality of ring resonators () that are electrically isolated from the antenna and arranged at least on the side nearest the shelf when the ESL is attached to the shelf.