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US Patent 7903520 Optical disc recording apparatus

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Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
79035201
Patent Inventor Names
Yuji Ishihara1
Date of Patent
March 8, 2011
1
Patent Application Number
120789171
Date Filed
April 8, 2008
1
Patent Primary Examiner
‌
Thang V. Tran
1
Patent abstract

An optical disc recorder that records information on an optical disc by means of a laser diode that forms pits in the optical disc through the application of a write pulse of a previously set type, the recorder having a reference power setter that sets a reference power that is the reference value of a drive power of the write pulse, a pulse type checker that checks whether the type of write pulse set consists of a plurality of pulses, which allows the drive power to be set for each pulse of a plurality of pulses, a power corrector for correcting the drive power of at least one pulse of the write pulse by adding a previously set correction power to the reference power, and a drive controller that applies the write pulse, which consists of the pulse with the reference power and the at least one pulse with the drive power corrected.

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