Optical recording medium and entertainment system that employs it
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 13, 2004
Grant Date -
N/A
app pub date -
Feb 17, 2000
filing date -
Feb 19, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
It is an object of the present invention to provide an optical recording medium having a new information recording part and an entertainment system employing it. According to an optical recording medium of the present invention, a new information recording part (210) is formed on parts other than the information recordable part (200O, 200D, 200I), and information can be written, read, and erased.
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