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1. 发明申请

US20080273430A1 SINGLE PLL DEMODULATION OF PRE-FORMATTED INFORMATION EMBEDDED IN OPTICAL RECORDING MEDIUM 有权
标题翻译：在光记录介质中嵌入的预制信息的单PLL解调
公开(公告)号：US20080273430A1
公开(公告)日：2008-11-06
申请号：US12173135
申请日：2008-07-15
申请人： Louis J. Serrano , Shih-Ming Shih
发明人： Louis J. Serrano , Shih-Ming Shih
IPC分类号： G11B20/08
CPC分类号： G11B20/10222 , G11B7/0053 , G11B20/10009 , G11B20/1403
摘要： A method and apparatus demodulate pre-formatted information embedded in an optical recording medium. The demodulation includes (a) receiving a wobble signal representing data symbols frequency-modulated on a carrier frequency, (b) generating a phase delta signal representing a phase difference between the wobble signal and a corresponding locked signal having the carrier frequency, (c) first sampling the phase delta signal at a data sampling interval to produce first values, (d) second sampling the phase delta signal at each halfway of the data sampling interval to generate second values, (e) determining, based on a difference between two successive second values, if the first sampling is performed at timing corresponding to an end of each data symbol, and (e) adjusting sampling timing of the first sampling towards the timing corresponding to each end of the data symbols, if the sampling timing does not corresponds to the end of each data symbol.
摘要翻译：解调嵌入在光学记录介质中的预格式化信息的方法和装置。解调包括（a）接收表示在载波频率上进行频率调制的数据符号的摆动信号，（b）产生表示摆动信号和具有载波频率的相应锁定信号之间的相位差的相位增量信号，（c）首先以数据采样间隔对相位增量信号进行采样以产生第一值，（d）在数据采样间隔的每一半处对相位增量信号进行二次采样以产生第二值，（e）基于两个连续的第二值，如果在与每个数据符号的结尾对应的定时执行第一采样，以及（e）如果采样定时不对应，则将调整第一采样的采样定时朝向对应于数据符号的每个端的定时到每个数据符号的末尾。

2. 发明授权

US07940615B2 Single PLL demodulation of pre-formatted information embedded in optical recording medium 有权
标题翻译：预先格式化信息的单PLL解调嵌入在光学记录介质中
公开(公告)号：US07940615B2
公开(公告)日：2011-05-10
申请号：US12173135
申请日：2008-07-15
申请人： Louis J. Serrano , Shih-Ming Shih
发明人： Louis J. Serrano , Shih-Ming Shih
IPC分类号： G11B7/00
CPC分类号： G11B20/10222 , G11B7/0053 , G11B20/10009 , G11B20/1403
摘要： A method and apparatus demodulate pre-formatted information embedded in an optical recording medium. The demodulation includes (a) receiving a wobble signal representing data symbols frequency-modulated on a carrier frequency, (b) generating a phase delta signal representing a phase difference between the wobble signal and a corresponding locked signal having the carrier frequency, (c) first sampling the phase delta signal at a data sampling interval to produce first values, (d) second sampling the phase delta signal at each halfway of the data sampling interval to generate second values, (e) determining, based on a difference between two successive second values, if the first sampling is performed at timing corresponding to an end of each data symbol, and (e) adjusting sampling timing of the first sampling towards the timing corresponding to each end of the data symbols, if the sampling timing does not corresponds to the end of each data symbol.
摘要翻译：解调嵌入在光学记录介质中的预格式化信息的方法和装置。解调包括（a）接收表示在载波频率上进行频率调制的数据符号的摆动信号，（b）产生表示摆动信号和具有载波频率的相应锁定信号之间的相位差的相位增量信号，（c）首先以数据采样间隔对相位增量信号进行采样以产生第一值，（d）在数据采样间隔的每一半处对相位增量信号进行二次采样以产生第二值，（e）基于两个连续的第二值，如果在与每个数据符号的结尾对应的定时执行第一采样，以及（e）如果采样定时不对应，则将调整第一采样的采样定时朝向对应于数据符号的每个端的定时到每个数据符号的末尾。

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