READER/WRITER EQUIPMENT OF NON-CONTACT COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide R/W equipment of a non-contact communication system capable of housing a circuit and an antenna coil within a small area and expanding a transmittable and receivable range to a more practical distance.

SOLUTION: The reader/writer equipment of the non-contact communication system for transmitting and receiving information to/from a storage medium without contacting comprises: a circuit for performing processing for transmitting and receiving the information; an antenna coil disposed at a close position around the circuit for making it possible to transmit and receive the information between the recording medium and the circuit and supplying required power to the recording medium; and ground loop wiring in a closed loop shape extended from a part of ground wiring inside the circuit and circulated once, twice or more so as to surround an area where an electronic component to be easily affected by a magnetic field among the electronic components disposed inside the circuit is disposed at least.

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