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:
Dec. 02, 2008
Filed:
Aug. 07, 2007
Chih-chin Hsu, Taipei County, TW;
Chih-yuan Chen, Changhua County, TW;
Ying-che Hung, Taipei Hsien, TW;
Chih-Chin Hsu, Taipei County, TW;
Chih-Yuan Chen, Changhua County, TW;
Ying-Che Hung, Taipei Hsien, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
An optical storage system includes an optical pickup unit movable across an optical medium. The optical pickup unit has a light detector, a laser diode, and a laser driver signal processor circuit. The laser driver signal processor circuit includes a detected signal processing block for outputting read signals corresponding to light received at the light detector, and a read signal processing block for processing the read signals and generating control signals or synthesis signals according to the read signals. A control unit is coupled to the optical pickup unit for controlling the optical pickup unit and decoding data recovered from the optical medium. The optical storage system further includes encryption and decryption modules or error detection modules for securing commands and information sent between the control unit and the laser driver signal processor circuit against reverse engineering.