Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2007-09-04
2007-09-04
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C720S606000, C720S601000
Reexamination Certificate
active
10512522
ABSTRACT:
It is an object of the present invention is to provide an apparatus for discriminating an optical recording medium and a method for discriminating an optical recording medium which can reliably discriminate the kind of an optical recording medium even in the case where the optical recording medium to be discriminated is formed with periodical undulation in the circumferential direction thereof. The apparatus for discriminating an optical recording medium according to the present invention includes a first electrode11, a second electrode12, an alternate current signal generation circuit13for applying an alternate current A to the first electrode11, a detection circuit14for detecting a level of an alternate current B appearing at the second electrode12, and a control circuit15for controlling the operations of the alternate current signal generation circuit13and the detection circuit14.
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Fukunaga Kazuo
Hirata Hideki
Hosobuchi Toshikazu
Namioka Takashi
Shibuya Giichi
Nguyen Linh T.
Seed IP Law Group PLLC
TDK Corporation
Young Wayne
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