Optical disk inspecting apparatus and method
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United States of America Patent
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Sep 10, 2013
Grant Date -
Apr 15, 2010
app pub date -
Oct 9, 2009
filing date -
Oct 10, 2008
priority date (Note) -
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Abstract
An optical disk inspecting apparatus 10 plays an optical disk at a high speed and determines, based on error information provided during the high-speed reproduction, whether or not errors of a number exceeding a first threshold value have occurred. Then, when it is determined that errors of a number exceeding a first threshold value have occurred, the optical disk inspecting apparatus 10 performs high-speed principal determination of executing high-speed reproduction in this segment and determining presence or absence of errors of a number exceeding a second threshold value and also performs low-speed principal determination of executing low-speed reproduction in this segment and determining presence or absence of errors of a number exceeding the second threshold value. When errors of a number exceeding the second threshold value are detected, it is determined that there is a defect, and NG is outputted.
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