Samsung Electronics Co., Ltd.

Kyung-pil Kang

Min-seok Kim

Yong-Jin Ahn

Jong-kyu Kim

An optical recording/reproducing apparatus includes an optical pickup unit configured to scan an optical disk with an optical signal to record and reproduce data. A power tuning unit is configured to scan a first track with the optical signal to record a first test data to the first track, while changing a power level of the optical signal within a predetermined range in sequence. A scanning time tuning unit is configured to scan a second track with an optical signal to record a second test data to the second track, while changing a scanning time within a predetermined range in sequence. A state detection unit is configured to detect a reproduction state of the first test data and second test data. A controller is configured to check the reproductions state of the first test data and second test data and determine an optimal power level and optimal scanning time. Accordingly, a write strategy is rapidly and optically tuned.

Optical disk having divided write strategy tuning areas, optical recording/reproducing apparatus and method using the same

An optical disc player for recording/reproducing data on an optical disc, including an optical pickup unit emitting a laser beam to the surface of the optical disc and extracting an RF signal corresponding to the recorded data, a signal size computing unit computing an envelope size of the RF signal, a tilt adjuster adjusting a tilt of the optical disc, and a controller for designating the tilt at a maximum envelope size as an optimal tilt, and controlling the tilt adjuster to change a present tilt based on the optimal tilt. Similarly, it is also possible to designate an optimal skew based on the skew at a maximum envelope size. Accordingly, embodiments of the present invention make it possible to obtain the optimal tilt/skew using the RF envelope.

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Seoul, South Korea

Kyung-pil Kang