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US 2009/0080296 A1Published application
Optical disc
AssigneeMurata Manufacturing Co., Ltd.
InventorsYuya DOKAI, Noboru KATO, Ikuhei KIMURA
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Abstract
An optical disc includes an electromagnetic coupling module mounted therein. The electromagnetic coupling module includes a wireless IC chip and a feeder circuit substrate in which a feeder circuit including a resonant circuit having a predetermined resonant frequency is disposed. The electromagnetic coupling module is electromagnetically coupled to a reflective film defining a metal thin film of the optical disc, and the reflective film defines an antenna or radiation pattern of the electromagnetic coupling module.
Claims6
An optical disc comprising:
- an electromagnetic coupling module disposed in the optical disc;
- wherein
- the electromagnetic coupling module includes a wireless IC chip and a feeder circuit substrate;
- the feeder circuit substrate includes a feeder circuit including a resonant circuit having a predetermined resonant frequency disposed therein;
- and
- the electromagnetic coupling module is electromagnetically coupled to a reflective film defining a metal thin film of the optical disc, and the reflective film defines an antenna or radiation pattern of the electromagnetic coupling module.
3 more elements
Dependencies are inferred from the claim text.