Mediatek Corporation

Ping-Tsai Tsai

Chih-Ching Yu

Sung-Yang Wu

Hung-Hsiang Chang

Pin-Chou Liu

Ya-Fang Nien

Ying-Feng Huang

Kun-Yi Chan

Ming-Tsang Wu

The invention relates to recording on a medium, and in particular, to laser control during recording data on an optical medium. A laser control method for dynamically adjusting laser power during recording data onto an optical disc comprises: recording normal data onto the optical disc according to an initial laser power; stopping recording when a trigger is generated; reading back the recorded normal data and generating a first recording quality index; recording a test pattern at a test pattern starting point according to a selected laser power; reading back the test pattern and generating a second recording quality index; and determining an adaptive laser power to continually record the normal data according to the first recording quality index and the second recording quality index.

Method and apparatus for laser control during recording

A method of identifying physical characteristic information of an optical disc includes: deriving a reading result by reading at least a first region of the optical disc, where a location of the first region is specified in a Blu-ray disc specification for recording information associated with recording management of a BD recordable disc; and identifying a first physical characteristic of the optical disc according to the reading result.

Method of identifying physical characteristic information of optical disc and related controller thereof

A method for determining a disc format is disclosed. Data from at least one address of the disc is retrieved, wherein the at least one address is selected from a plurality of predetermined addresses related to the disc format. The disc format is determined according to the retrieved data.

Method and system for determining disc format for recovery of data recording

A data recording device. A random data generator randomly generates substitute data. A recording data generator receives original data and a recording address from a host, receives the substitute data, compares the recording address with a reference address, and outputs the substitute data according to the comparison result. An encoder generates a first data block according to the substitute data. A modulator modulates the first data block. An optical pickup records the modulated first data block on the optical recording medium according to the recording address.

Data recording devices and methods thereof

A method for storing data in a first buffer and a second buffer is disclosed. The method includes: sequentially storing an incoming data into the first buffer and the second buffer according to a first threshold; transferring data stored in the second buffer to the first buffer when an amount of data stored in the second buffer reaches a second threshold; and driving the first buffer to output data stored therein when an amount of data stored in the first buffer exceeds the first threshold after transferred data is received from the second buffer.

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Kaohsiung, Taiwan

Ping-Tsai Tsai