Information recording/reproducing apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6714498
APP PUB NO 20030169663A1
SERIAL NO

10402469

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An information recording/reproducing apparatus determines whether ejection of an optical disk stored in an optical disk drive or in a changer is allowed when receiving a command for ejecting the optical disk to the outside. The information recording/reproducing apparatus allows the optical disk to be ejected only when judging that the ejection is allowed. When judging that the ejection is not allowed, the information recording/reproducing apparatus rejects the ejection. Prohibition of ejection of an optical disk on which information whose copyright is to be protected has been recorded enables the use of the information for private hobby and at the same time prevents pirated versions or the like from being produced, thus realizing copyright protection.

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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
Komma, Yoshiaki Hirakata, JP 199 1269
Saimi, Tetsuo Hirakata, JP 46 673
Tanaka, Shin-ichi Kyotanabe, JP 52 706

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