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AssigneesHitachi, Ltd., Kokusai Electric Corporation
InventorsYoshihiko Hayashi, Takashi Suga, Kouichi Uesaka, Ryouzou Yoshino, Keisuke Igarashi
Estimating the term…
A reader and/or writer apparatus having an antenna lying substantially in a plane for generating an electromagnetic field to supply power to an IC card and a conductor member to be disposed in a plane substantially parallel to the plane of the antenna, wherein the distance between the antenna and the conductor member is no greater than 20 mm. A power supplying system supplies power using electromagnetic waves from the reader and/or writer apparatus to the IC card. The IC card includes a circuit for converting the supplied power to a D.C. voltage and for supplying the D.C. voltage to an internal circuit of the IC card.
A reader and/or writer apparatus comprising an antenna lying substantially in a plane for generating an electromagnetic field to supply power to an IC card and a conductor member to be disposed in a plane substantially parallel to the plane of the antenna, a distance between the antenna and the conductor member being no greater than 20 mm.
A power supplying system for supplying power, using electromagnetic waves, from a reader and/or writer apparatus to an IC card, the IC card having a circuit for converting the supplied power to a D.C. voltage and for supplying the D.C. voltage to an internal circuit of the IC card, the reader and/or writer apparatus having an antenna lying substantially in a plane for generating an electromagnetic field to supply power to the IC card and a conductor member to be disposed in a plane substantially parallel to the antenna, a distance between the antenna and the conductor member being no greater than 20 mm.
Dependencies are inferred from the claim text.