Communication system, information recording medium, and relay communication device

摘要

The disclosed communication system, information recording medium, and relay communication device allow communication via electromagnetic induction, allow the use of low-cost information recording media, improve communication stability when information recording media is misaligned or rotated, and provide high IC-chip tolerance to flexion in information recording media. An information recording medium (3-1) has: an IC chip (32-1) that is capable of communication via electromagnetic induction; and a pair of thin conductive sheets (21-1) connected to the IC chip (32-1). A relay medium (2-1) has thin conductive sheets (31-1) and a loop antenna (22-1), with one of said thin conductive sheets (31-1) connected to one end of the loop antenna (22-1) and the other thin conductive sheet (31-1) connected to the other end of the loop antenna (22-1). A read/write device (1-1) has a loop antenna (12-1).

主权项

1. A communication system comprising:
an information recording medium; an electromagnetic induction communication device; and a relay medium interposed between the information recording medium and the electromagnetic induction communication device, the system performing contactless communication between the information recording medium and the electromagnetic induction communication device through the relay medium, wherein the information recording medium comprises an IC chip configured for communication through electromagnetic induction, and a first pair of electrically conductive plates connected to the IC chip, wherein the relay medium includes a second pair of electrically conductive plates and a loop antenna, one of the second pair of electrically conductive plates being connected to a beginning end of the loop antenna, and the other of the second pair of electrically conductive plates being connected to a terminal end of the loop antenna, and wherein the electromagnetic induction communication device includes a loop antenna to perform communication with the information recording medium.