Radio frequency switch and method for controlling the same, and radio frequency identification smart shelf system

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United States of America Patent

PATENT NO 9117127
APP PUB NO 20130154804A1
SERIAL NO

13605510

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Abstract

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A radio frequency identification (RFID) smart shelf system manages a product through communication with an RFID tag that is attached to the product on a shelf, and includes an RFID reader, a plurality of reader antennas, and an RF switch that is connected between the RFID reader and the plurality of reader antennas. The RF switch periodically varies a phase difference between RF signals of a portion of a plurality of output connection ports that set a connection to each of the plurality of reader antennas.

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Patent Owner(s)

  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chae, Jong-Suk Daejeon, KR 123 2085
Choi, Won Kyu Daejeon, KR 54 489
Han, Kyu Won Seoul, KR 35 46
Jung, Jae-young Daejeon, KR 36 461
Park, Chan-Won Daejeon, KR 34 232
Pyo, Cheol Sig Daejeon, KR 166 1535

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