Electronic shelf label tag and electronic shelf label gateway

Electronic shelf label tag and electronic shelf label gateway

The invention provides an electronic shelf label tag and an electronic shelf label gateway. The electronic shelf label tag may include a second antenna receiving a radio signal from an electronic shelf label gateway, a second wireless communications unit processing the radio signal received from the...

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Hauptverfasser: CHO HAN JIN, YOON DONG SIK, RYU JONG GI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator CHO HAN JIN
YOON DONG SIK
RYU JONG GI
description The invention provides an electronic shelf label tag and an electronic shelf label gateway. The electronic shelf label tag may include a second antenna receiving a radio signal from an electronic shelf label gateway, a second wireless communications unit processing the radio signal received from the second antenna, and a second neighboring channel removal unit connected between the second antenna and the second wireless communications unit to remove a neighboring channel signal having a frequency lower than a frequency of a communications channel signal by a preset frequency interval. A signal having a frequency lower than that of the communications channel by a preset amount among signals of wireless communications networks different from a currently used communications network may be removed, whereby reception sensitivity of the electronic shelf label tag may be improved.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Electronic shelf label tag and electronic shelf label gateway
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