Optical disc
First Claim
Patent Images
1. An optical disc comprising:
- a reflective film defined by a metal thin film;
a wireless IC chip; and
a feeder circuit including a conductor pattern connected to the wireless IC chip;
whereinthe conductor pattern is arranged to overlap a portion of the reflective film such that the conductor pattern is electromagnetically coupled with the reflective film; and
the reflective film defines an antenna or a radiation pattern.
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Accused Products
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.
134 Citations
6 Claims
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1. An optical disc comprising:
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a reflective film defined by a metal thin film; a wireless IC chip; and a feeder circuit including a conductor pattern connected to the wireless IC chip;
whereinthe conductor pattern is arranged to overlap a portion of the reflective film such that the conductor pattern is electromagnetically coupled with the reflective film; and the reflective film defines an antenna or a radiation pattern. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification