Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2007-08-07
2008-12-02
Hindi, Nabil (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
Reexamination Certificate
active
07460461
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.
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Chen Chih-Yuan
Hsu Chih-Chin
Hung Ying-Che
Hindi Nabil
Hsu Winston
Mediatek Inc.
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