Multi-layered optical disk with shifted track and layer identification and method of detecting a track

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United States of America Patent

PATENT NO 6421315
SERIAL NO

09245196

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Abstract

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A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light beam is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have An identification section storing an address of the recording layer which the identification section belongs to.

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Patent Owner(s)

  • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Azumatani, Yasushi Neyagawa, JP 63 2913
Fukushima, Yoshihisa Osaka, JP 201 8156
Hamasaka, Hiroshi Nishinomiya, JP 63 2613
Satoh, Isao Neyagawa, JP 135 4050
Takagi, Yuji Kadoma, JP 233 4111

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