ARRANGEMENT FOR REDUCING INTERFERENCE IN AN ELECTRONIC SHELF LABEL
First Claim
1. An arrangement for reducing interference in a wireless electronic shelf label (ESL) (100) having a layered structure the ESL comprising:
- a display layer (101) comprising display material, a circuit board (203) with a backplane material structure and an antenna (202), and a circuit board arrangement with control electronics for controlling the operation of the label, such as the display and the radio communication, anda 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 (100),wherein the radio communication control further comprises means for radio frequency communication via modulated backscatter, characterized in thatthe 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 (204) 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.
1 Assignment
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Accused Products
Abstract
An arrangement for reducing interference in a wireless electronic shelf label (ESL) (100) having a layered structure the ESL comprising: a display layer (101) comprising display material, a circuit board (203) with a backplane material structure and an antenna (202), 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 (100), 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 (204) 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.
19 Citations
12 Claims
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1. An arrangement for reducing interference in a wireless electronic shelf label (ESL) (100) having a layered structure the ESL comprising:
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a display layer (101) comprising display material, a circuit board (203) with a backplane material structure and an antenna (202), 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 (100), wherein the radio communication control further comprises means for radio frequency communication via modulated backscatter, characterized in that 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 (204) 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification