US Patent 6965548 Method of unbalanced disc detection
Patent 6965548 was granted and assigned to AOpen on November, 2005 by the United States Patent and Trademark Office.
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Patent abstract
A method of unbalanced disc detection in a slim type optical drive. In the method of the present invention, the slim type optical drive obtains a first tracking count per round of the disc at a first rotation speed to obtain a first runout. Then, the optical drive obtains a second tracking count per round of the disc at a second rotation speed to obtain a second runout. Finally, deviation of the disc is assessed according to the first runout and the second runout, so that the disc can be determined to be a gravitationally eccentric disc or not.
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Patent Inventor Names
Yung-Chien Chen0
Date of Patent
November 15, 2005
0Patent Application Number
101961500
Date Filed
July 15, 2002
0Patent Primary Examiner
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US Patent 6965548 Method of unbalanced disc detection
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