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1. 发明申请

US20120212849A1 Systems and Methods for Data Pre-Coding Calibration 有权
标题翻译：数据预编码校准系统与方法
公开(公告)号：US20120212849A1
公开(公告)日：2012-08-23
申请号：US13031818
申请日：2011-02-22
申请人： Changyou Xu , Shaohua Yang , Haitao Xia , Kapil Gaba
发明人： Changyou Xu , Shaohua Yang , Haitao Xia , Kapil Gaba
IPC分类号： G11B5/00 , H04L27/01
CPC分类号： G11B20/10083 , G11B20/10296 , G11B20/1833 , G11B2020/185 , G11B2220/2516 , G11B2220/415
摘要： Various embodiments of the present invention provide systems and methods for selecting between pre-coding and non-pre-coding. As an example, a data processing circuit is disclosed that includes: a first data detector circuit, a second data detector circuit, a first comparator circuit, a second comparator circuit, and a pre-code selection circuit. The first data detector circuit is selectably configurable to operate in a pre-coded state, and operable to apply a data detection algorithm on a data input to yield a first detected output. The second data detector circuit operable to apply the data detection algorithm to the data input to yield a second detected output without compensating for pre-coding. The first comparator circuit operable to compare the first detected output against a known input to yield a first comparison value, and the second comparator circuit operable to compare the second detected output against the known input to yield a second comparison value. The pre-code selection circuit is operable to determine a selectable configuration of the first data detector circuit based at least in part on the first comparison value and the second comparison value.
摘要翻译：本发明的各种实施例提供了用于在预编码和非预编码之间进行选择的系统和方法。作为示例，公开了一种数据处理电路，其包括：第一数据检测器电路，第二数据检测器电路，第一比较器电路，第二比较器电路和预代码选择电路。第一数据检测器电路可选择地被配置为以预编码状态操作，并且可操作以将数据检测算法应用于数据输入以产生第一检测输出。第二数据检测器电路可操作以将数据检测算法应用于数据输入以产生第二检测输出而不补偿预编码。第一比较器电路可操作以将第一检测输出与已知输入进行比较以产生第一比较值，并且第二比较器电路可操作以将第二检测输出与已知输入进行比较以产生第二比较值。预编码选择电路可操作以至少部分地基于第一比较值和第二比较值来确定第一数据检测器电路的可选配置。

2. 发明授权

US08059017B2 Code sequence generation method, modulation apparatus, modulation method, modulation program, demodulation apparatus, demodulation method, demodulation program and storage medium 失效
标题翻译：码序生成方法，调制装置，调制方式，调制程序，解调装置，解调方式，解调程序和存储介质
公开(公告)号：US08059017B2
公开(公告)日：2011-11-15
申请号：US11605583
申请日：2006-11-29
申请人： Satoru Higashino
发明人： Satoru Higashino
IPC分类号： H03M7/00
CPC分类号： H03M5/145 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/1426
摘要： A modulation apparatus includes: a modulation section that modulates, in accordance with a correlation table where a data sequence with a predetermined number of bits is associated with a code sequence with a predetermined number of bits, the data sequence into the code sequence to allow a predetermined demodulation section to demodulate the code sequence into the data sequence in accordance with the correlation table, wherein the code sequence is, on NRZI method, a MSN code sequence where a null point of a frequency spectrum on a recording channel or communication channel of the code sequence is matched with a null point of a frequency spectrum of a PR equalized signal including the code sequence and a minimum run length is limited to be greater or equal to one.
摘要翻译：一种调制装置，包括：调制部，其根据相关表，其中具有预定位数的数据序列与预定位数的码序列相关联，将数据序列调制成码序列，以允许预定解调部分，用于根据相关表将码序列解调成数据序列，其中码序列是以NRZI方法的MSN码序列，其中在记录信道或通信信道上的频谱的零点代码序列与包括代码序列的PR均衡信号的频谱的零点匹配，并且最小游程长度被限制为大于或等于1。

3. 发明授权

US07852728B2 Digital signal reproducing apparatus 有权
标题翻译：数字信号再现装置
公开(公告)号：US07852728B2
公开(公告)日：2010-12-14
申请号：US11995634
申请日：2006-07-20
申请人： Youichi Ogura , Tatsushi Hiraki , Yorikazu Takao
发明人： Youichi Ogura , Tatsushi Hiraki , Yorikazu Takao
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10222 , G11B20/1403 , G11B2020/1287 , G11B2220/2562 , G11B2220/2575
摘要： A digital signal reproducing apparatus includes an analog to digital converter for sampling and quantizing a signal read from an optical recording medium in accordance with a reproduced clock having a frequency which is one-half of a channel bit frequency and outputting an obtained digital RF signal, an offset compensation circuit for reducing an offset component in an amplitude direction from the digital RF signal, and a simplified interpolation filter for reconstructing a signal indicating a predetermined pattern recorded in the optical recording medium from the output signal of the offset compensation circuit and outputting the reconstructed signal. A control operation is performed to reduce the magnitudes of respective values shown by first phase error information on a section with the predetermined pattern and by second phase error information on a section other than the section with the predetermined pattern.
摘要翻译：一种数字信号再生装置，具有模拟数字转换器，用于根据具有频率为通道位频率的二分之一的频率的再生时钟对从光记录介质读取的信号进行采样和量化，并输出所获得的数字RF信号，偏移补偿电路，用于减少来自数字RF信号的振幅方向上的偏移分量;以及简化内插滤波器，用于根据偏移补偿电路的输出信号重建指示记录在光学记录介质中的预定模式的信号，并输出重建信号。执行控制操作以减小具有预定模式的部分上的第一相位误差信息所示的各个值的大小以及除了具有预定模式的部分之外的部分的第二相位误差信息。

4. 发明授权

US07634714B2 Decoding system for eight-to-fourteen modulation or eight-to-sixteen modulation 失效
标题翻译：用于8到14调制或8到16调制的解码系统
公开(公告)号：US07634714B2
公开(公告)日：2009-12-15
申请号：US11390205
申请日：2006-03-28
申请人： Wen-Chang Lin
发明人： Wen-Chang Lin
IPC分类号： H03M13/00
CPC分类号： H04L27/0014 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10296 , G11B2020/1461 , G11B2020/1465 , G11B2020/1859 , H04L25/03203 , H04L2027/0053 , H04L2027/0065 , H04L2027/0067
摘要： A decoding system for eight-to-fourteen modulation or eight-to-sixteen modulation (EFM/ESM), which has an analog to digital converter (ADC), an adaptive equalizer and a Viterbi decoder. The ADC receives an analog signal with an EFM or ESM feature, and converts the analog signal into a digital signal with the EFM or ESM feature. The adaptive equalizer converts the EFM or ESM digital signal into a first signal with a minimum phase feature. The Viterbi decoder receives the first signal and generates a decoding signal in accordance with a Viterbi algorithm and a channel model, and the Viterbi decoder discards nonexistent paths in accordance with the EFM or ESM feature when computing branch metric of a branch or a node.
摘要翻译：一种用于八到十四调制或八到十六调制（EFM / ESM）的解码系统，其具有模数转换器（ADC），自适应均衡器和维特比解码器。 ADC接收具有EFM或ESM功能的模拟信号，并将模拟信号转换为具有EFM或ESM功能的数字信号。自适应均衡器将EFM或ESM数字信号转换为具有最小相位特征的第一信号。维特比解码器接收第一信号并根据维特比算法和信道模型产生解码信号，并且当计算分支或节点的分支度量时，维特比解码器根据EFM或ESM特征丢弃不存在的路径。

5. 发明授权

US07558177B2 Optical disc playback apparatus 失效
标题翻译：光盘播放装置
公开(公告)号：US07558177B2
公开(公告)日：2009-07-07
申请号：US11344184
申请日：2006-02-01
申请人： Youichi Ogura , Shinichi Konishi
发明人： Youichi Ogura , Shinichi Konishi
IPC分类号： G11B7/00
CPC分类号： G11B20/10055 , G11B20/10037 , G11B20/10046 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10166 , G11B20/10203 , G11B20/10212 , G11B20/10222 , G11B20/1876 , G11B2220/2537
摘要： After a playback RF signal 3 detected from an optical disc medium 1 is waveform-shaped, it is converted into a digital RF signal 6 with a sampling clock 8 having a cycle twice as long as a channel clock. Thereafter, a first offset correction circuit 9 corrects an offset fluctuation in a high frequency band, and a digital adaptive equalizer 23 performs adaptive equalization, and then a second offset correction circuit 27 corrects an offset component that remains after the offset correction by the first offset correction circuit 9, thereby demodulating a digital binary signal 37. Therefore, even when high-speed playback is carried out and an asymmetry depending on the recording quality is large, a reduction in power consumption can be realized while maintaining high-performance playback. Consequently, it is possible to provide an optical disc playback apparatus which can realize sufficient playback performance at low power consumption.
摘要翻译：在从光盘介质1检测到的重放RF信号3是波形的之后，它被转换成具有采样时钟8的数字RF信号6，采样时钟8的周期是通道时钟的两倍。此后，第一偏移校正电路9校正高频带中的偏移波动，并且数字自适应均衡器23执行自适应均衡，然后第二偏移校正电路27将偏移校正之后剩余的偏移分量校正为第一偏移校正电路9，从而解调数字二进制信号37.因此，即使执行高速重放，并且取决于记录质量的不对称性大，可以在保持高性能回放的同时实现功耗的降低。因此，可以提供能够以低功耗实现充分的播放性能的光盘播放装置。

6. 发明授权

US07336581B2 Optical disk, optical disk recording method and optical disk apparatus 失效
公开(公告)号：US07336581B2
公开(公告)日：2008-02-26
申请号：US11328132
申请日：2006-01-10
申请人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
发明人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
IPC分类号： G11B5/09 , G11B7/24
CPC分类号： G11B27/3027 , G11B7/005 , G11B7/006 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10296 , G11B20/1217 , G11B20/14 , G11B20/1403 , G11B20/1426 , G11B20/18 , G11B27/19 , G11B27/24 , G11B2020/1239 , G11B2020/1245 , G11B2020/1267 , G11B2020/1274 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1292 , G11B2020/1294 , G11B2020/1295 , G11B2020/1298 , G11B2020/1465 , G11B2220/216 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A signal can be detected based on a level slice system and detection delay time can be reduced by setting the recording density of a header field in a linear direction lower (coarse) than that of a user data recording field. Further, a signal can be detected based on the level slice system and detection delay time can be reduced by using a mark position form having a large detection margin as an information recording system of the header field. A readout error of a sector number due to a detection error is compensated for by recording address marks AM for attaining byte synchronization of the header field in both of a head portion and tail portion of information recorded in the header field.

7. 发明授权

US07321545B2 Optical disk, optical disk recording method and optical disk apparatus 失效
公开(公告)号：US07321545B2
公开(公告)日：2008-01-22
申请号：US11562046
申请日：2006-11-21
申请人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
发明人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
IPC分类号： G11B7/24 , G11B5/09
CPC分类号： G11B27/3027 , G11B7/005 , G11B7/006 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10296 , G11B20/1217 , G11B20/14 , G11B20/1403 , G11B20/1426 , G11B20/18 , G11B27/19 , G11B27/24 , G11B2020/1239 , G11B2020/1245 , G11B2020/1267 , G11B2020/1274 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1292 , G11B2020/1294 , G11B2020/1295 , G11B2020/1298 , G11B2020/1465 , G11B2220/216 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A signal can be detected based on a level slice system and detection delay time can be reduced by setting the recording density of a header field in a linear direction lower (coarse) than that of a user data recording field. Further, a signal can be detected based on the level slice system and detection delay time can be reduced by using a mark position form having a large detection margin as an information recording system of the header field. A readout error of a sector number due to a detection error is compensated for by recording address marks AM for attaining byte synchronization of the header field in both of a head portion and tail portion of information recorded in the header field.

8. 发明授权

US07319654B2 Optical disk, optical disk recording method and optical disk apparatus 失效
公开(公告)号：US07319654B2
公开(公告)日：2008-01-15
申请号：US11562260
申请日：2006-11-21
申请人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
发明人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
IPC分类号： G11B5/09 , G11B7/24
CPC分类号： G11B27/3027 , G11B7/005 , G11B7/006 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10296 , G11B20/1217 , G11B20/14 , G11B20/1403 , G11B20/1426 , G11B20/18 , G11B27/19 , G11B27/24 , G11B2020/1239 , G11B2020/1245 , G11B2020/1267 , G11B2020/1274 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1292 , G11B2020/1294 , G11B2020/1295 , G11B2020/1298 , G11B2020/1465 , G11B2220/216 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A signal can be detected based on a level slice system and detection delay time can be reduced by setting the recording density of a header field in a linear direction lower (coarse) than that of a user data recording field. Further, a signal can be detected based on the level slice system and detection delay time can be reduced by using a mark position form having a large detection margin as an information recording system of the header field. A readout error of a sector number due to a detection error is compensated for by recording address marks AM for attaining byte synchronization of the header field in both of a head portion and tail portion of information recorded in the header field.

9. 发明申请

US20070091762A1 OPTICAL DISK, OPTICAL DISK RECORDING METHOD AND OPTICAL DISK APPARATUS 失效
公开(公告)号：US20070091762A1
公开(公告)日：2007-04-26
申请号：US11562040
申请日：2006-11-21
申请人： YUTAKA OKAMOTO , Hideo Ando , Chosaku Noda , Yutaka Kashihara
发明人： YUTAKA OKAMOTO , Hideo Ando , Chosaku Noda , Yutaka Kashihara
IPC分类号： G11B20/10
CPC分类号： G11B27/3027 , G11B7/005 , G11B7/006 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10296 , G11B20/1217 , G11B20/14 , G11B20/1403 , G11B20/1426 , G11B20/18 , G11B27/19 , G11B27/24 , G11B2020/1239 , G11B2020/1245 , G11B2020/1267 , G11B2020/1274 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1292 , G11B2020/1294 , G11B2020/1295 , G11B2020/1298 , G11B2020/1465 , G11B2220/216 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A signal can be detected based on a level slice system and detection delay time can be reduced by setting the recording density of a header field in a linear direction lower (coarse) than that of a user data recording field. Further, a signal can be detected based on the level slice system and detection delay time can be reduced by using a mark position form having a large detection margin as an information recording system of the header field. A readout error of a sector number due to a detection error is compensated for by recording address marks AM for attaining byte synchronization of the header field in both of a head portion and tail portion of information recorded in the header field.

10. 发明申请

US20070091761A1 OPTICAL DISK, OPTICAL DISK RECORDING METHOD AND OPTICAL DISK APPARATUS 失效
标题翻译：光盘，光盘记录方法和光盘设备
公开(公告)号：US20070091761A1
公开(公告)日：2007-04-26
申请号：US11562024
申请日：2006-11-21
申请人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
发明人： Yutaka Okamoto , Hideo Ando , Chosaku Noda , Yutaka Kashihara
IPC分类号： G11B20/10
CPC分类号： G11B27/3027 , G11B7/005 , G11B7/006 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/10296 , G11B20/1217 , G11B20/14 , G11B20/1403 , G11B20/1426 , G11B20/18 , G11B27/19 , G11B27/24 , G11B2020/1239 , G11B2020/1245 , G11B2020/1267 , G11B2020/1274 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1292 , G11B2020/1294 , G11B2020/1295 , G11B2020/1298 , G11B2020/1465 , G11B2220/216 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A signal can be detected based on a level slice system and detection delay time can be reduced by setting the recording density of a header field in a linear direction lower (coarse) than that of a user data recording field. Further, a signal can be detected based on the level slice system and detection delay time can be reduced by using a mark position form having a large detection margin as an information recording system of the header field. A readout error of a sector number due to a detection error is compensated for by recording address marks AM for attaining byte synchronization of the header field in both of a head portion and tail portion of information recorded in the header field.
摘要翻译：可以基于电平切片系统检测信号，并且可以通过将报头字段的记录密度设置为比用户数据记录区域低的（粗略）的线性方向来减小检测延迟时间。此外，可以基于电平切片系统检测信号，并且可以通过使用具有较大检测余量的标记位置形式作为标题字段的信息记录系统来减少检测延迟时间。通过记录地址标记AM来补偿由于检测错误引起的扇区号的读出错误，以便在标题字段中记录的信息的头部和尾部中的头部字段的两个字段同步中获得字节同步。

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