Disk DVD-ROM drive unit with a playback speed control and disk drive method
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United States of America Patent
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Oct 31, 2006
Issued Date -
N/A
app pub date -
Apr 16, 2001
filing date -
Apr 20, 2000
priority date (Note) -
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Abstract
A disk drive unit for reproducing information recorded on a digital versatile disk (DVD). The disk drive unit has a copyright management information reading unit for reading copyright management information from a predetermined location on a DVD loaded into the disk drive unit, a first determining unit for determining whether or not protection exists for contents of the loaded DVD using the copyright management information read from the loaded DVD by the copyright management information reading unit, and a playback speed control unit for controlling a playback speed of the loaded DVD when it is determined that the contents of the loaded DVD are protected using the first determining unit.
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