The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2010
Filed:
Oct. 21, 2005
Yuan-chin Liu, Hsinchu, TW;
Wen-yi Wu, Jhubei, TW;
Yuan-Chin Liu, Hsinchu, TW;
Wen-Yi Wu, Jhubei, TW;
Mediatek Incorporation, Hsin-Chu, TW;
Abstract
An apparatus for writing data to an optical storage media and a servo control unit and a laser diode driver unit thereof. The apparatus making a laser diode emit light includes a servo control unit and a laser diode driver unit. The servo control unit includes a control unit for controlling a burning procedure and a modulation unit for outputting an encoded signal. The laser diode driver unit receives the encoded signal and includes a PLL unit, a write strategy generation unit and a lock/unlock detection unit. The PLL unit outputs at least one of a second clock signal and a second data signal according to the encoded signal. The write strategy generation unit outputs a control signal to control the laser diode according to the second clock signal and the second data signal. The lock/unlock detection unit outputs a lock indicator or an unlock indicator to the control unit.