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1.发明申请Recording/reproduction apparatus, recording/reproduction method, program, and recording power adjustment apparatus 有权记录/再现装置，记录/再现方法，程序和记录功率调节装置公开(公告)号：US20050128911A1
公开(公告)日：2005-06-16
申请号：US10981869
申请日：2004-11-05
CPC分类号： G11B7/1267 , G11B7/0053 , G11B7/0062 , G11B7/00736
摘要： A recording/reproduction apparatus, comprising a first recording section for recording test information onto a medium using at least one recording power, a reproduction section for reproducing at least one test signal indicating the test information from the medium, and a second recording section for recording information onto the medium using one of the at least one recording power. The reproduction section comprises a decoding section for performing maximum likelihood decoding of the at least one test signal and generating at least one binary signal indicating a result of the maximum likelihood decoding, a calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the at least one test signal and the at least one binary signal, and an adjustment section for adjusting a recording power for recording the information onto the medium to the one recording power based on the reliability.
摘要翻译： 一种记录/再现装置，包括用于使用至少一个记录功率将测试信息记录在介质上的第一记录部分，用于从介质再现指示测试信息的至少一个测试信号的再现部分和用于记录的第二记录部分 使用所述至少一个记录功率之一将信息传送到介质上。 再现部分包括：解码部分，用于对所述至少一个测试信号执行最大似然解码，并产生指示最大似然解码结果的至少一个二进制信号;计算部分，用于计算最大似然解码结果的可靠性 基于所述至少一个测试信号和所述至少一个二进制信号，以及调整部分，用于基于所述可靠性调整用于将所述信息记录到所述介质上的记录功率与所述一个记录功率。
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2.发明授权Recording/reproduction apparatus which adjusts recording power based on a partial response maximum likelihood (PRML) technique 有权基于部分响应最大似然（PRML）技术调节记录功率的记录/再现装置公开(公告)号：US07646686B2
公开(公告)日：2010-01-12
申请号：US10981869
申请日：2004-11-05
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0053 , G11B7/0062 , G11B7/00736
摘要： A recording/reproduction apparatus, comprising a first recording section for recording test information onto a medium using at least one recording power, a reproduction section for reproducing at least one test signal indicating the test information from the medium, and a second recording section for recording information onto the medium using one of the at least one recording power. The reproduction section comprises a decoding section for performing maximum likelihood decoding of the at least one test signal and generating at least one binary signal indicating a result of the maximum likelihood decoding, a calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the at least one test signal and the at least one binary signal, and an adjustment section for adjusting a recording power for recording the information onto the medium to the one recording power based on the reliability.
摘要翻译： 一种记录/再现装置，包括用于使用至少一个记录功率将测试信息记录在介质上的第一记录部分，用于从介质再现指示测试信息的至少一个测试信号的再现部分和用于记录的第二记录部分 使用所述至少一个记录功率之一将信息传送到介质上。 再现部分包括：解码部分，用于对所述至少一个测试信号执行最大似然解码，并产生指示最大似然解码结果的至少一个二进制信号;计算部分，用于计算最大似然解码结果的可靠性 基于所述至少一个测试信号和所述至少一个二进制信号，以及调整部分，用于基于所述可靠性调整用于将所述信息记录到所述介质上的记录功率与所述一个记录功率。
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3.发明授权Recording/reproduction apparatus, recording/reproduction method, program, and recording power adjustment apparatus 有权记录/再现装置，记录/再现方法，程序和记录功率调节装置公开(公告)号：US07907487B2
公开(公告)日：2011-03-15
申请号：US12613833
申请日：2009-11-06
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0053 , G11B7/0062 , G11B7/00736
摘要： A recording/reproduction apparatus, comprising a first recording section for recording test information onto a medium using at least one recording power, a reproduction section for reproducing at least one test signal indicating the test information from the medium, and a second recording section for recording information onto the medium using one of the at least one recording power. The reproduction section comprises a decoding section for performing maximum likelihood decoding of the at least one test signal and generating at least one binary signal indicating a result of the maximum likelihood decoding, a calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the at least one test signal and the at least one binary signal, and an adjustment section for adjusting a recording power for recording the information onto the medium to the one recording power based on the reliability.
摘要翻译： 一种记录/再现装置，包括用于使用至少一个记录功率将测试信息记录在介质上的第一记录部分，用于从介质再现指示测试信息的至少一个测试信号的再现部分和用于记录的第二记录部分 使用所述至少一个记录功率之一将信息传送到介质上。 再现部分包括：解码部分，用于对所述至少一个测试信号执行最大似然解码，并产生指示最大似然解码结果的至少一个二进制信号;计算部分，用于计算最大似然解码结果的可靠性 基于所述至少一个测试信号和所述至少一个二进制信号，以及调整部分，用于基于所述可靠性调整用于将所述信息记录到所述介质上的记录功率与所述一个记录功率。
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4.发明申请RECORDING/REPRODUCTION APPARATUS, RECORDING/REPRODUCTION METHOD, PROGRAM, AND RECORDING POWER ADJUSTMENT APPARATUS 有权记录/复制装置，记录/再现方法，程序和记录功率调节装置公开(公告)号：US20100054097A1
公开(公告)日：2010-03-04
申请号：US12613833
申请日：2009-11-06
IPC分类号： G11B7/12
CPC分类号： G11B7/1267 , G11B7/0053 , G11B7/0062 , G11B7/00736
摘要： A recording/reproduction apparatus, comprising a first recording section for recording test information onto a medium using at least one recording power, a reproduction section for reproducing at least one test signal indicating the test information from the medium, and a second recording section for recording information onto the medium using one of the at least one recording power. The reproduction section comprises a decoding section for performing maximum likelihood decoding of the at least one test signal and generating at least one binary signal indicating a result of the maximum likelihood decoding, a calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the at least one test signal and the at least one binary signal, and an adjustment section for adjusting a recording power for recording the information onto the medium to the one recording power based on the reliability.
摘要翻译： 一种记录/再现装置，包括用于使用至少一个记录功率将测试信息记录在介质上的第一记录部分，用于从介质再现指示测试信息的至少一个测试信号的再现部分和用于记录的第二记录部分 使用所述至少一个记录功率之一将信息传送到介质上。 再现部分包括：解码部分，用于对所述至少一个测试信号执行最大似然解码，并产生指示最大似然解码结果的至少一个二进制信号;计算部分，用于计算最大似然解码结果的可靠性 基于所述至少一个测试信号和所述至少一个二进制信号，以及调整部分，用于基于所述可靠性调整用于将所述信息记录到所述介质上的记录功率与所述一个记录功率。
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5.发明授权Information processing device, access device, recording medium, information processing method, and information processing program 有权信息处理装置，存取装置，记录介质，信息处理方法和信息处理程序公开(公告)号：US07936653B2
公开(公告)日：2011-05-03
申请号：US12163583
申请日：2008-06-27
IPC分类号： G11B7/00
CPC分类号： G11B7/00736 , G11B7/004 , G11B7/005 , G11B7/0053 , G11B19/12
摘要： An information processing device is a device for processing specific information recorded to a recording medium, and has a characteristic identification unit and a processing unit. The characteristic identification unit identifies the reflection characteristic of the recording medium. The processing unit processes the specific information recorded to the recording medium according to the identified reflection characteristic. The reflection characteristic is either a first characteristic such that the reflectance of light reflected by a recorded region of the recording medium (referred to as first reflectance) is greater than the reflectance of light reflected by an unrecorded region of the recording medium (referred to as second reflectance), or a second characteristic such that the first reflectance is less than the second reflectance.
摘要翻译： 信息处理装置是用于处理记录在记录媒体上的特定信息的装置，具有特征识别部和处理部。 特征识别单元识别记录介质的反射特性。 处理单元根据所识别的反射特性来处理记录在记录介质上的特定信息。 反射特性是由记录介质的记录区域反射的光的反射率（被称为第一反射率）大于由记录介质的未记录区域反射的光的反射率的第一特性（称为第一反射率 第二反射率）或第二特性使得第一反射率小于第二反射率。
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公开(公告)号：US20100149940A1
公开(公告)日：2010-06-17
申请号：US12067902
申请日：2006-09-27
IPC分类号： G11B20/18
CPC分类号： H03L7/087 , G11B20/10009 , G11B20/10027 , G11B20/10037 , G11B20/10046 , G11B20/10212 , G11B20/10222 , G11B20/1217 , G11B20/14 , G11B2020/1232 , G11B2020/1238 , G11B2020/1239 , G11B2020/1268 , G11B2020/1274 , G11B2020/1287 , H03L7/07 , H03L7/091
摘要： A clock signal generator according to the present invention includes: a wobble phase error detecting section for detecting a wobble phase error that is a difference in phase between a wobble signal, representing a wobbled shape of a track on an optical disk medium, and a clock signal; a data phase error detecting section for detecting a data phase error that is a difference in phase between a data signal, representing data that has been written on the optical disk medium, and the clock signal; a frequency control section for generating a frequency control signal to control the frequency of the clock signal based on the wobble phase error and the data phase error; and a clock oscillation section for generating the clock signal with its frequency controlled in accordance with the frequency control signal.
摘要翻译： 根据本发明的时钟信号发生器包括：摆动相位误差检测部分，用于检测作为表示光盘介质上的轨道的摆动形状的摆动信号与时钟之间的相位差的摆动相位误差 信号; 数据相位误差检测部分，用于检测表示已经写在光盘介质上的数据的数据信号与时钟信号之间的相位差的数据相位误差; 频率控制部分，用于基于摆动相位误差和数据相位误差产生频率控制信号以控制时钟信号的频率; 以及时钟振荡部分，用于产生其频率根据频率控制信号而被控制的时钟信号。
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7.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：US20080165651A1
公开(公告)日：2008-07-10
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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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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9.发明授权Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium 有权用于通过再现记录在记录介质上的标记和非标记而获得的再现信号的波形均衡器公开(公告)号：US06678230B2
公开(公告)日：2004-01-13
申请号：US09984351
申请日：2001-10-29
申请人： Harumitsu Miyashita , Shinichi Konishi , Atsushi Nakamura , Takeshi Nakajima , Junichi Minamino
发明人： Harumitsu Miyashita , Shinichi Konishi , Atsushi Nakamura , Takeshi Nakajima , Junichi Minamino
IPC分类号： G11B7005
CPC分类号： G11B20/10009 , G11B7/005 , G11B20/10046 , G11B20/10055 , G11B20/10166 , G11B20/10296 , G11B2020/1484
摘要： Even with an asymmetric reproduction waveform, or under the noisy environment, an accurate equalizing error is found and temporary judgment value for adaptively controlling the coefficient of FIR filter is accurately outputted. A waveform equalizer for equalizing a waveform of a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium is provided. The equalizer includes: a detector which detects asymmetry of the reproduction signal arising from physical profiles of the marks and non-marks and outputs a detection signal representing asymmetric amount; a discriminator which discriminates the marks and non-marks based on the reproduction signal to output a discriminated signal; and a selector which calculates a first and second coefficient multiplied by the reproduction signal of the marks and non-marks based on the detection signal, which are different. The selector selects one of the first and second coefficients based on the discriminating signal.
摘要翻译： 即使具有不对称再现波形，或者在嘈杂的环境下，发现精确的均衡误差，并且准确地输出用于自适应地控制FIR滤波器的系数的临时判断值。 提供了用于均衡通过再现记录在记录介质上的标记和非标记而获得的再现信号的波形的波形均衡器。 均衡器包括：检测器，其检测由标记和非标记的物理特征引起的再现信号的不对称性，并输出表示不对称量的检测信号; 鉴别器，其基于再现信号鉴别标记和非标记，以输出鉴别信号; 以及选择器，其基于检测信号计算与所述标记和非标记的再现信号相乘的第一和第二系数，所述检测信号不同。 选择器基于鉴别信号选择第一和第二系数之一。
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公开(公告)号：US06434098B1
公开(公告)日：2002-08-13
申请号：US09840874
申请日：2001-04-25
申请人： Shinichi Konishi , Takeshi Nakajima , Harumitsu Miyashita , Toshihiko Takahashi , Toshiya Akagi , Yuji Hisakado , Yukihiro Yamasaki
发明人： Shinichi Konishi , Takeshi Nakajima , Harumitsu Miyashita , Toshihiko Takahashi , Toshiya Akagi , Yuji Hisakado , Yukihiro Yamasaki
IPC分类号： G11B700
摘要： An optical disc drive usable with discs to which data is continuously recorded and discs having a sector format can quickly resume playback signal output after passing imperfection causing potential reading errors, and plays disc with few read errors. A detection signal generator detects DC level fluctuation in the playback signal read from the disc and generates a detection signal tracking the DC level fluctuation. A selector selects a detection signal or a null signal without valid polarity based on the detection signal generated by the detection signal generator and input to the selector. A clamping unit performs a clamping process to suppress DC level fluctuation in the playback signal based on the detection signal when the selection unit selects the detection signal, and does not perform the clamping process when the selection unit selects the null signal. A signal processor performs specific signal processes based on clamping unit output.
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