COMMODITY MANAGING ANTENNA AND CONTROL METHOD OF THE SAME
First Claim
1. A commodity managing antenna for booting up reading/writing action with respect to RFID tags attached to commodity media, comprising:
- a plurality of loop-type antenna elements which resonate with a supply of electricity; and
switches, whereinthe loop-type antenna elements are provided at positions to partition a storage space where the commodity media are stored, andthe switches control the supply of electricity to the loop-type antenna elements.
1 Assignment
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Accused Products
Abstract
To suppress a loss in the operation due to electromagnetic coupling of a plurality of antenna elements which boot up reading/writing action of RFID tags that are attached to a large number of densely placed commodity media. A commodity managing antenna for booting up reading/writing action of RFID tags attached to commodity media that are densely stored on a shelf comprises: a plurality of loop-type antenna elements arranged in parallel at a constant interval on the shelf where the commodity media are densely stored; a first switch for selectively supplying electricity to one of the antenna elements; and a plurality of second switches inserted to each loop of the antenna elements which, when one of the antenna elements to which the electricity is supplied by the first switch is resonating, electrically disconnect the loops of remaining antenna elements so that those antenna elements become non-resonant.
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Citations
6 Claims
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1. A commodity managing antenna for booting up reading/writing action with respect to RFID tags attached to commodity media, comprising:
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a plurality of loop-type antenna elements which resonate with a supply of electricity; and
switches, whereinthe loop-type antenna elements are provided at positions to partition a storage space where the commodity media are stored, and the switches control the supply of electricity to the loop-type antenna elements. - View Dependent Claims (2, 3, 4, 5)
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6. A commodity managing antenna control method for booting up reading/writing action with respect to RFID tags attached to commodity media, comprising the steps of:
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selectively supplying electricity to one of a plurality of loop-type antenna elements that are arranged in parallel at a constant interval in a storage apace where the commodity media are placed; and when electricity is supplied selectively to one of the plurality of antenna elements, loops of other antenna elements than the antenna element to which the electricity is selectively supplied are electrically disconnected so that the other antenna elements become non-resonant.
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Specification