Mediatek Corporation

Shu-Ching Chen

Kuo-Jung Lan

Shu-Hung Chou

Meng-Hsueh Lin

Chi-Pei Huang

Yu-Han Lin

Chih-Pin Chu

A proximity detecting apparatus for detecting a proximity event includes a capacitive sensing device, an auxiliary detecting device, and a controller. The capacitive sensing device is arranged for generating a capacitive sensing output. The auxiliary detecting device is arranged for detecting an operational status of an electronic device in which the capacitive sensing device is disposed and accordingly generating a status output. The controller is arranged for detecting the proximity event according to the capacitive sensing output and the status output.

Apparatus and method for performing proximity detection according to capacitive sensing output and status output

Disclosed is a system for generating an output signal indicating a specific area on an optical disc. The system includes an optical pick-up head signal generator, a detecting apparatus, and an output signal generating apparatus. The optical pick-up head signal generator is used for generating an optical pick-up head signal. The detecting apparatus is used for detecting pre-recorded address information on the optical disc to generate a detection signal. Also, a output signal generating apparatus, which is coupled to the optical pick-up head signal generator and the detecting apparatus, is used for receiving the optical pick-up head signal and the detection signal to generate the output signal according to at least one of the optical pick-up head signal and the detection signal, the output signal generating apparatus not generating the output signal according to the optical pick-up head signal after a predetermined time.

System and method for generating an output signal indicating a specific area on an optical disc utilizing an adjustable specific time

A track-jump control system and method are provided. The track-jump control system applied in an optical disc drive comprises a signal generator, a protection device, a velocity estimator, and a controller. The signal generator receives the signal from the PUH and generates a tracking signal and a position signal. The protection device receives the position signal and when the position signal represents the PUH pass a predetermined position of the optical disc, the protection device generates a protection signal. The velocity estimator estimates the velocity of the PUH according to the tracking signal, and then generates a velocity signal. The controller receives the velocity signal and the protection signal, protects the velocity signal according to the protection signal, and generates a control signal to control the track-jump according to the protected velocity signal.

Track-jump control system and method for maintaining track-jump stability

A power adjusting method for a pickup head accessing an optical disc. The method includes identifying a target data transfer rate utilized by the PUH for accessing the optical disc; calculating an appropriate laser power according to the target data transfer rate; and accessing the optical disc by the PUH at the target data transfer rate with the appropriate laser power.

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Tao-Yuan Hsien, Taiwan

Shu-Ching Chen