NON-CONTACT IC CARD AND ELECTRONIC APPARATUS MOUNTED WITH NON-CONTACT IC CARD
PROBLEM TO BE SOLVED: To improve tuning performance when a use environment and antenna characteristics are different between an RFID card and an RFID reader/writer.SOLUTION: An RFID card (2) that is tuned to a radio wave emitted from an RFID reader/writer to establish communication with the RFID rea...
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Main Author | |
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Format | Patent |
Language | English |
Published |
02.10.2014
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To improve tuning performance when a use environment and antenna characteristics are different between an RFID card and an RFID reader/writer.SOLUTION: An RFID card (2) that is tuned to a radio wave emitted from an RFID reader/writer to establish communication with the RFID reader/writer comprises a resonant circuit part (20) that switches a resonant frequency when an elapsed time from the start of a trial of tuning at a current resonant frequency exceeds a preset predetermined time. |
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Bibliography: | Application Number: JP20130061030 |