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Conversion method and device for multilevel variable data and blue light multilevel optical storage device
Title：	Conversion method and device for multilevel variable data and blue light multilevel optical storage device
Application Number：	200610169823	Application Date：	2006/12/29
Announcement Date：	2007/07/11	Pub. Date：
Publication Number：	1996479	Announcement Number：
Grant Date：		Granted Pub. Date：
ApplicationType：	Invention	State/Country：	11[China|beijing]
IPC：	G11B 20/14, H03M 7/46, H03M 5/20
Applicant(s)：	Tsinghua University
Inventor(s)：	Pan Longfa, Hu Heng, Ni Yi, Pei Jing, Xu Haizheng, Lu Da, Xu Duanyi, Hu Hua, Zhang Qicheng
Key Words：	multilevel variable data, conversion, blue light, optical storage
Abstract：	The reading out signal inspection method for blue light multi step storage device with the channel distance less than 0.52millimter works with adapting and demodulating procedures with run-length-limited code rate R=5/7 byte/element, 3 element (d, k) code, converting the decimal data formed 5 bytes source into 7 multi step code element formed code or vice versa, with d=2, representing the code element of two nonzero code element the least number, k equal or bigger than 9, k being the max. Number of code element of two nonzero code elements. It also relates to multi step long data converting device, and the blue light multi step photo storage device using the above mentioned method or device.
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Conversion method and device of multilevel variable data and blue light multilevel optical storage device Detection method and device for the signals read from the blue light multilevel optical storage device

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