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公开(公告)号：US07120102B2
公开(公告)日：2006-10-10
申请号：US10675384
申请日：2003-09-30
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B7/0037 , G11B7/005
摘要： A jitter detection apparatus includes an A/D conversion section for converting an input analog signal into a plurality of discrete multiple value digital signals; a binarization section for performing binarization of the plurality of multiple value digital signals to generate a binary signal; a jitter calculation section for calculating a jitter amount based on an error between a value of a prescribed multiple value digital signal sampled at a time which is substantially the same as a time when the value of the binary signal is changed and a prescribed threshold value; a pattern detection section for detecting patterns of the binary signal before and after the time when the prescribed multiple value digital signal is sampled; and a correction section for correcting the jitter amount based on the detected pattern.
摘要翻译： 抖动检测装置包括用于将输入的模拟信号转换为多个离散多值数字信号的A / D转换部分; 二进制化部分，用于执行所述多个多值数字信号的二值化以产生二进制信号; 抖动计算部分，用于基于与二进制信号的值改变时的时间基本相同的规定的多值数字信号的值与规定的阈值之间的误差来计算抖动量; 模式检测部分，用于检测在规定的多值数字信号被采样的时间之前和之后的二进制信号的模式; 以及校正部分，用于基于检测到的图案校正抖动量。
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公开(公告)号：US20060153041A1
公开(公告)日：2006-07-13
申请号：US10532468
申请日：2003-10-20
IPC分类号： G11B20/10
CPC分类号： G11B27/3027 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10222 , G11B20/10425 , G11B2020/1288 , G11B2220/2541 , G11B2220/2562 , H03L7/091 , H03L7/107 , H04L7/033 , H04L7/041
摘要： A frequency and phase control apparatus includes an analog/digital conversion section for converting a reproduction signal into a multiple bit digital signal based on a clock signal; a maximum likelihood decoding section for converting the multiple bit digital signal into a binary signal; a pattern detection section for detecting a pattern of the binary signal; and a determination section for determining whether or not the multiple bit digital signal and the clock signal are in synchronization with each other based on the detection result. When the determination result of the determination section indicates that the multiple bit digital signal and the clock signal are in synchronization with each other, the maximum likelihood decoding section generates a binary signal based on a first state transition rule; otherwise, the maximum likelihood decoding section generates a binary signal based on a second state transition rule.
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13.发明授权Recording control apparatus, recording and reproduction apparatus, and recording control method 有权记录控制装置，记录和再现装置以及记录控制方法公开(公告)号：US07038869B2
公开(公告)日：2006-05-02
申请号：US10823264
申请日：2004-04-13
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
摘要翻译： 一种记录控制装置，包括：波形整流部分，用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号，并整流数字信号的波形; 最大似然解码部分，用于对其波形进行整流的数字信号进行最大似然解码，并生成表示最大似然解码结果的二进制信号; 可靠性计算部分，用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部，用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。
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14.发明授权Recording control apparatus, recording and reproduction apparatus, and recording control method 有权记录控制装置，记录和再现装置以及记录控制方法公开(公告)号：US08018810B2
公开(公告)日：2011-09-13
申请号：US12249978
申请日：2008-10-13
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
摘要翻译： 一种记录控制装置，包括：波形整流部分，用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号，并整流数字信号的波形; 最大似然解码部分，用于对其波形进行整流的数字信号进行最大似然解码，并生成表示最大似然解码结果的二进制信号; 可靠性计算部分，用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部，用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。
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15.发明授权公开(公告)号：US07417815B2
公开(公告)日：2008-08-26
申请号：US11283367
申请日：2005-11-17
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
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16.发明申请公开(公告)号：US20060067189A1
公开(公告)日：2006-03-30
申请号：US11283367
申请日：2005-11-17
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
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公开(公告)号：US07623586B2
公开(公告)日：2009-11-24
申请号：US10532468
申请日：2003-10-20
CPC分类号： G11B27/3027 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10222 , G11B20/10425 , G11B2020/1288 , G11B2220/2541 , G11B2220/2562 , H03L7/091 , H03L7/107 , H04L7/033 , H04L7/041
摘要： A frequency and phase control apparatus includes an analog/digital conversion section for converting a reproduction signal into a multiple bit digital signal based on a clock signal; a maximum likelihood decoding section for converting the multiple bit digital signal into a binary signal; a pattern detection section for detecting a pattern of the binary signal; and a determination section for determining whether or not the multiple bit digital signal and the clock signal are in synchronization with each other based on the detection result. When the determination result of the determination section indicates that the multiple bit digital signal and the clock signal are in synchronization with each other, the maximum likelihood decoding section generates a binary signal based on a first state transition rule; otherwise, the maximum likelihood decoding section generates a binary signal based on a second state transition rule.
摘要翻译： 频率相位控制装置包括：模拟/数字转换部分，用于基于时钟信号将再现信号转换成多位数字信号; 最大似然解码部分，用于将多位数字信号转换成二进制信号; 模式检测部分，用于检测二进制信号的模式; 以及确定部分，用于基于检测结果确定多位数字信号和时钟信号是否彼此同步。 当确定部分的确定结果指示多位数字信号和时钟信号彼此同步时，最大似然解码部分基于第一状态转换规则产生二进制信号; 否则，最大似然解码部分基于第二状态转换规则生成二进制信号。
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18.发明申请Optical disc apparatus, clock signal generation method, program, and control apparatus 审中-公开光盘装置，时钟信号生成方法，程序和控制装置公开(公告)号：US20050111318A1
公开(公告)日：2005-05-26
申请号：US10973780
申请日：2004-10-26
IPC分类号： G11B5/09 , G11B7/00 , G11B7/09 , G11B20/10 , G11B20/14 , G11B27/24 , H03L7/08 , H03L7/085 , H03L7/091
CPC分类号： G11B27/24 , G11B20/1403 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2575 , H03L7/085 , H03L7/091
摘要： An optical disc apparatus is provided, which comprises a signal detection section for detecting a wobble signal from a reproduced signal of an optical disc, and a generation section for generating a clock signal in synchronization with the wobble signal. The generation section comprises a first difference signal generation section for generating a first difference signal indicating a difference between a frequency of the wobble signal and a frequency of the clock signal, a period detection section for detecting a modulation period of the wobble signal based on the first difference signal, and an adjustment section for adjusting the frequency of the clock signal based on a predetermined signal other than the first difference signal during a modulation period, and adjusting the frequency of the clock signal based on the first difference signal during a period other than the modulation period.
摘要翻译： 提供了一种光盘装置，其包括用于从光盘的再现信号检测摆动信号的信号检测部分和用于与摆动信号同步地产生时钟信号的生成部分。 所述生成部分包括：第一差分信号生成部分，用于产生指示摆动信号的频率与时钟信号的频率之间的差异的第一差分信号;周期检测部分，用于基于所述摆动信号的调制周期检测所述摆动信号; 第一差分信号和调整部分，用于在调制周期期间基于除第一差分信号之外的预定信号调整时钟信号的频率，并且在其它时间段期间基于第一差分信号调整时钟信号的频率 比调制周期。
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19.发明授权Recording control apparatus, recording and reproduction apparatus, and recording control method 有权记录控制装置，记录和再现装置以及记录控制方法公开(公告)号：US07453658B2
公开(公告)日：2008-11-18
申请号：US12046025
申请日：2008-03-11
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
摘要翻译： 一种记录控制装置，包括：波形整流部分，用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号，并整流数字信号的波形; 最大似然解码部分，用于对其波形进行整流的数字信号进行最大似然解码，并生成表示最大似然解码结果的二进制信号; 可靠性计算部分，用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部，用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。
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20.发明申请Recording control apparatus, recording and reproduction apparatus, and recording control method 有权记录控制装置，记录和再现装置以及记录控制方法公开(公告)号：US20050078579A1
公开(公告)日：2005-04-14
申请号：US10823264
申请日：2004-04-13
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
摘要翻译： 一种记录控制装置，包括：波形整流部分，用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号，并整流数字信号的波形; 最大似然解码部分，用于对其波形进行整流的数字信号进行最大似然解码，并生成表示最大似然解码结果的二进制信号; 可靠性计算部分，用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部，用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。
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