An optical storage apparatus for reproducing data from an optical medium and related method thereof
An optical storage and media technology, which is applied in the fields of optical recording/reproduction, data recording, electrical digital data processing, etc. It can solve the problems of affecting the quality of video and audio playback, increasing the time spent, and consuming excess power.
Inactive Publication Date: 2009-11-11
MEDIATEK INC
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[0003] At present, most of the CD-ROM drives complete audio-visual playback (playback) and data copying through a specific speed. If the speed of the specific speed is relatively low, the time spent in data copying will be relatively increased. On the contrary, if the speed of the specific speed is relatively low If the speed is relatively high, it will consume excess power and the noise generated by the excessive rotation of the optical drive shaft may also affect the quality of video playback. Therefore, how to properly set a specific speed to optimize the quality and data of video playback Replication efficiency has become a very important topic at present
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[0024] Please refer to figure 1 , figure 1 It is a schematic diagram of an embodiment of the optical storage device 100 of the present invention. In this embodiment, the optical storage device 100 is an optical drive, and is used for accessing the optical disc 12; the optical storage device 100 uses a rotating unit 40 to rotate the optical disc 12 with a variable speed, wherein the rotating unit 40 includes a motor 14 and a rotation control function block (rotation control block) 32, wherein the rotation control function block 32 is used to drive the motor 14 to adjust the rotating speed of the optical disc 12; The data access unit 50 will access the data on the optical disc 12, and demodulate the data to be sent to the buffer memory 22, and the data access unit 50 includes a device for emitting laser light onto the optical disc 12 and detecting the data from the optical disc 12. The optical pick-up head 16 of the reflected laser light, the servo control function square (ser...
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The invention provides an optical storage device and method for reproducing data on an optical storage medium. The optical storage device includes a rotation unit, a buffer memory, a data access unit and a buffer control function block. The rotation unit is used to rotate the optical storage medium at a rotational speed; the buffer memory is used to buffer data to be transmitted to a host; the data access unit is coupled to the buffer memory and used to access the optical storage data on the medium and store the data read from the optical storage medium into the buffer memory; and the buffer control function block is coupled to the buffer memory and is used to monitor a storage state of the buffer memory to control the rotation unit to Adjust the rotational speed of the optical storage medium. The optical storage device and related method of the present invention can properly adjust the rotation speed of the optical storage medium according to the actual access situation, without spending more time, redundant power and generating noise during data copying.
Description
technical field [0001] The invention provides an optical storage device and method for reproducing data on an optical storage medium, especially an optical storage device and method for reproducing data on an optical storage medium driven by a variable speed. Background technique [0002] At present, many products of optical storage technology have come out, such as CD player and DVD player. Compared with traditional audio-visual devices, optical storage products can provide better audio-visual quality, which has led to its rapid development in the field of audio-visual playback. [0003] At present, most of the CD-ROM drives complete audio-visual playback (playback) and data copying through a specific speed. If the speed of the specific speed is relatively low, the time spent in data copying will be relatively increased. On the contrary, if the speed of the specific speed is relatively low If the speed is relatively high, it will consume excess power and the noise generate...
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IPC IPC(8): G11B20/10G11B7/00G06F12/00
CPCG11B19/26G11B19/28G11B20/10
Inventor 林正杰林晏丞
Owner MEDIATEK INC