公开(公告)号：US20050117483A1

公开(公告)日：2005-06-02

申请号：US10995542

申请日：2004-11-24

申请人： Emi Maruyama ,  Kazuto Kuroda ,  Toshihiko Kaneshige

发明人： Emi Maruyama ,  Kazuto Kuroda ,  Toshihiko Kaneshige

IPC分类号： G11B20/10 ,  G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B27/10

CPC分类号： G11B7/00736 ,  G11B2007/0013

摘要： An information storage medium has a system lead-in area and a data lead-in area, and an area identifying circuit identifies whether a light beam irradiation area of an optical pickup head is at the system lead-in area or at the data lead-in area based on a reproduction signal provided from the optical pickup head. The area identifying circuit identifies the respective areas by using the number of zero crossings obtained from a signal, for example, into which the reproduction signal is binarized. An information reproducing circuit reproduces information from the reproduction signal based on the identified result by the area identifying circuit.

摘要翻译： 信息存储介质具有系统导入区和数据导入区，区域识别电路识别光学拾取头的光束照射区域是否在系统导入区或数据导入区， 基于从光学拾取头提供的再现信号。 区域识别电路通过使用从例如再现信号二值化的信号获得的过零点数来识别各个区域。 信息再现电路根据区域识别电路的识别结果从再现信号再现信息。

公开(公告)号：US07949071B2

公开(公告)日：2011-05-24

申请号：US12626338

申请日：2009-11-25

申请人： Yuji Nagai ,  Chosaku Noda ,  Kazuo Watabe ,  Akihito Ogawa ,  Kazuto Kuroda ,  Nobuhisa Yoshida ,  Nobumasa Naito ,  Naoki Morishita ,  Naomasa Nakamura ,  Hideaki Ohsawa ,  Hiroharu Sato ,  Hisashi Yamada ,  Toshihiko Kaneshige

发明人： Yuji Nagai ,  Chosaku Noda ,  Kazuo Watabe ,  Akihito Ogawa ,  Kazuto Kuroda ,  Nobuhisa Yoshida ,  Nobumasa Naito ,  Naoki Morishita ,  Naomasa Nakamura ,  Hideaki Ohsawa ,  Hiroharu Sato ,  Hisashi Yamada ,  Toshihiko Kaneshige

IPC分类号： H03C1/52 ,  G06K9/00

CPC分类号： G11B20/14 ,  G11B20/0021 ,  G11B20/00579 ,  G11B20/00884 ,  G11B20/1426 ,  G11B2020/1457

摘要： According to one embodiment, a first encoder encodes main information, a second encoder encodes sub-information, a first modulator modulates a carrier based on an output of the first encoder, a duplicating module duplicates an output of the second encoder to generate encoded sub-information units, and a second modulator amplitude-modulates an output of the first modulator based on the encoded sub-information units. The second modulator amplitude-modulates with σ/(μ×(2N)1/2) being 0.4 or less, wherein a noise power of a transmission path or a storage medium is σ2, a number of the encoded sub-information units is N, signal levels after amplitude modulation, which correspond to bit 1 and bit 0 of the encoded sub-information units, are A and B, and a level difference A−B is μ.

摘要翻译： 根据一个实施例，第一编码器对主信息进行编码，第二编码器对子信息进行编码，第一调制器基于第一编码器的输出调制载波，复制模块复制第二编码器的输出， 信息单元和第二调制器基于编码的子信息单元对第一调制器的输出进行幅度调制。 第二调制器以＆sgr; /（μ×（2N）1/2）振幅调制为0.4或更小，其中传输路径或存储介质的噪声功率为2，编码子信息的数量 单位为N，对应于编码子信息单元的位1和位0的幅度调制后的信号电平为A和B，电平差A-B为μ。

公开(公告)号：US20100135436A1

公开(公告)日：2010-06-03

申请号：US12626338

申请日：2009-11-25

申请人： Yuji NAGAI ,  Chosaku Noda ,  Kazuo Watabe ,  Akihito Ogawa ,  Kazuto Kuroda ,  Nobuhisa Yoshida ,  Nobumasa Naito ,  Naoki Morishita ,  Naomasa Nakamura ,  Hideaki Ohsawa ,  Hiroharu Sato ,  Hisashi Yamada ,  Toshihiko Kaneshige

发明人： Yuji NAGAI ,  Chosaku Noda ,  Kazuo Watabe ,  Akihito Ogawa ,  Kazuto Kuroda ,  Nobuhisa Yoshida ,  Nobumasa Naito ,  Naoki Morishita ,  Naomasa Nakamura ,  Hideaki Ohsawa ,  Hiroharu Sato ,  Hisashi Yamada ,  Toshihiko Kaneshige

IPC分类号： H04L27/04

CPC分类号： G11B20/14 ,  G11B20/0021 ,  G11B20/00579 ,  G11B20/00884 ,  G11B20/1426 ,  G11B2020/1457

摘要： According to one embodiment, a first encoder encodes main information, a second encoder encodes sub-information, a first modulator modulates a carrier based on an output of the first encoder, a duplicating module duplicates an output of the second encoder to generate encoded sub-information units, and a second modulator amplitude-modulates an output of the first modulator based on the encoded sub-information units. The second modulator amplitude-modulates with σ/(μ×(2N)1/2) being 0.4 or less, wherein a noise power of a transmission path or a storage medium is σ2, a number of the encoded sub-information units is N, signal levels after amplitude modulation, which correspond to bit 1 and bit 0 of the encoded sub-information units, are A and B, and a level difference A−B is μ.

摘要翻译： 根据一个实施例，第一编码器对主信息进行编码，第二编码器对子信息进行编码，第一调制器基于第一编码器的输出调制载波，复制模块复制第二编码器的输出， 信息单元和第二调制器基于编码的子信息单元对第一调制器的输出进行幅度调制。 第二调制器以＆sgr; /（μ×（2N）1/2）振幅调制为0.4或更小，其中传输路径或存储介质的噪声功率为2，编码子信息的数量 单位为N，对应于编码子信息单元的位1和位0的幅度调制后的信号电平为A和B，电平差A-B为μ。

公开(公告)号：US20070030777A1

公开(公告)日：2007-02-08

申请号：US11498072

申请日：2006-08-03

申请人： Hideyuki Yamakawa ,  Koichi Otake ,  Yukiyasu Tatsuzawa ,  Hiroyuki Moro ,  Toshihiko Kaneshige ,  Hiroaki Morino

发明人： Hideyuki Yamakawa ,  Koichi Otake ,  Yukiyasu Tatsuzawa ,  Hiroyuki Moro ,  Toshihiko Kaneshige ,  Hiroaki Morino

IPC分类号： G11B20/10

CPC分类号： G11B20/10 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/14

摘要： An optical disk device which decodes data recorded on an optical disk, comprises a first measuring unit which measure a cycle of a plurality of first synchronous signal regions VFO contained in a reproduction signal from an optical pickup, a cycle comparing unit which compares the measurement result of the first measuring unit with a first predetermined cycle, a second measuring unit which measures a cycle of a plurality of second synchronous signal regions SYNC which are contained in the reproduction signal from the optical pickup and have the cycle shorter than that of the plurality of first synchronous signal regions VFO, a cycle comparing unit which compares the measurement result of the second measuring unit with a second predetermined cycle, and an oscillator which generates a clock signal CKS for sampling the reproduction signal on the basis of the comparison results of the first and second cycle comparing units.

摘要翻译： 一种对记录在光盘上的数据进行解码的光盘装置，包括测量来自光学拾取器的再现信号中包含的多个第一同步信号区域VFO的周期的第一测量单元，比较测量结果 具有第一预定周期的第一测量单元，第二测量单元，其测量来自光学拾取器的再现信号中包含的多个第二同步信号区域SYNC的周期，并且具有比多个 第一同步信号区域VFO，将第二测量单元的测量结果与第二预定周期进行比较的周期比较单元，以及基于第一预定周期的比较结果生成用于对再现信号进行采样的时钟信号CKS的振荡器 和第二循环比较单位。

公开(公告)号：US20070025212A1

公开(公告)日：2007-02-01

申请号：US11493514

申请日：2006-07-27

申请人： Yukiyasu Tatsuzawa ,  Takahiro Nango ,  Hideyuki Yamakawa ,  Koichi Otake ,  Toshihiko Kaneshige ,  Hiroaki Morino

发明人： Yukiyasu Tatsuzawa ,  Takahiro Nango ,  Hideyuki Yamakawa ,  Koichi Otake ,  Toshihiko Kaneshige ,  Hiroaki Morino

IPC分类号： G11B15/52

CPC分类号： G11B20/1833 ,  G11B7/0053 ,  G11B20/1217 ,  G11B20/18 ,  G11B2020/122 ,  G11B2020/1287 ,  G11B2220/2537 ,  G11B2220/2579

摘要： According to one embodiment, there is provided an optical disk apparatus including a detecting unit which reads a reflective light from an optical disk and outputs a read signal, a decoder which decodes the read signal from the detecting unit, an extracting unit which extracts from the read signal the first and second specification information of the same content recorded in first and second areas on the optical disk, a processor which compares the first specification information with the second specification information and processes the specification information based on the comparison result, and a controller which controls the detecting unit or the decoder, based on the specification information processed by the processor.

摘要翻译： 根据一个实施例，提供了一种光盘装置，包括：检测单元，其从光盘读取反射光并输出读取信号;解码器，其对来自检测单元的读取信号进行解码;提取单元，其从 读取信号记录在光盘上的第一和第二区域中记录的相同内容的第一和第二规格信息;处理器，其将第一规格信息与第二规格信息进行比较，并根据比较结果处理规格信息;以及控制器 其基于由处理器处理的规格信息来控制检测单元或解码器。

公开(公告)号：US07166551B2

公开(公告)日：2007-01-23

申请号：US10483070

申请日：2002-05-08

申请人： Toshihiko Kaneshige ,  Hisaharu Sasaki ,  Yukiharu Tabuchi

发明人： Toshihiko Kaneshige ,  Hisaharu Sasaki ,  Yukiharu Tabuchi

IPC分类号： C04B35/443 ,  C04B35/66

CPC分类号： C04B35/443 ,  C04B35/624 ,  C04B35/6263 ,  C04B35/62665 ,  C04B35/63 ,  C04B35/6303 ,  C04B35/66 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3418 ,  C04B2235/5212 ,  C04B2235/5418 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5463 ,  C04B2235/61 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2235/9676

摘要： A subject for the invention is to provide an unshaped refractory composition having not only high thermal resistance but also improved corrosion resistance and improved unsusceptibility to slag infiltration.The invention is “an unshaped refractory composition comprising: (1) 20 to 70% by weight raw spinel material comprising an MgO—Al2O3 spinel phase and containing 2 to 20% by weight magnesia and/or raw spinel/corundum material comprising an MgO—Al2O3 spinel phase and a corundum phase and containing 2 to 20% by weight magnesia; (2) 3 to 12% by weight raw magnesia material having a particle diameter of 0.3 mm or smaller, containing particle sizes of 75 μm or smaller in an amount of 55 to 85% by weight, and having a magnesia purity of 90% by weight or higher; (3) 3 to 10% by weight alumina cement having a calcia content lower than 20% by weight; (4) 0.3 to 1.5% by weight ultrafine powder consisting mainly of silica; and (5) a raw alumina material as the remainder”.

摘要翻译： 本发明的主题是提供一种不均匀的耐火材料组合物，其具有不仅耐热性高，而且具有改善的耐腐蚀性，并且改善了对熔渣渗透的不合格性。 本发明是“不定形耐火材料组合物，其包含：（1）20至70重量％的包含MgO-Al 2 O 3 3尖晶石相的原始尖晶石材料，并含有2至 20重量％的氧化镁和/或包含MgO-Al 2 O 3 N 3尖晶石相和刚玉相的原始尖晶石/刚玉材料，并含有2〜20重量％的氧化镁 ;（2）3〜12重量％的粒径为0.3mm以下的原料氧化镁材料，其粒径为75μm以下，粒径为55〜85wt％，氧化镁纯度为90％ （3）氧化钙含量低于20重量％的3〜10重量％的氧化铝水泥;（4）0.3〜1.5重量％的主要由二氧化硅组成的超微粉末;（5）原料氧化铝 材料作为剩余部分“。

公开(公告)号：US20060023604A1

公开(公告)日：2006-02-02

申请号：US11190072

申请日：2005-07-27

申请人： Hideyuki Yamakawa ,  Koichi Otake ,  Yukiyasu Tatsuzawa ,  Hiroyuki Moro ,  Toshihiko Kaneshige

发明人： Hideyuki Yamakawa ,  Koichi Otake ,  Yukiyasu Tatsuzawa ,  Hiroyuki Moro ,  Toshihiko Kaneshige

IPC分类号： G11B20/10 ,  G11B5/09

CPC分类号： G11B20/10009 ,  G11B7/00736 ,  G11B20/10083 ,  G11B20/1012 ,  G11B20/10166 ,  G11B20/10296

摘要： There is provided an apparatus which can flexibly cope with both of a signal reproduction process for a region with high recording density and a signal reproduction process for a region with low recording density. The apparatus includes a waveform equalizing circuit which subjects data read out from an optical disk to a waveform equalizing process, a plurality of PRML processors of different classes supplied with an output signal of the waveform equalizing circuit, a switch which selects one of output signals of the plurality of PRML processors and supplies the selected output signal to a decoder, and a controller which controls the switch according to high-density and low-density regions with different recording densities of the optical disk to set a selection state in which a corresponding one of the output signals of the plurality of PRML processors is selected.

摘要翻译： 提供了一种能够灵活地处理具有高记录密度的区域的信号再现处理和具有低记录密度的区域的信号再现处理两者的装置。 该装置包括波形均衡电路，其对从光盘读出的数据进行波形均衡处理，多个提供有波形均衡电路的输出信号的不同类别的PRML处理器，选择一个输出信号的开关 多个PRML处理器并将所选择的输出信号提供给解码器，以及控制器，其根据具有不同光盘记录密度的高密度和低密度区域来控制开关，以设置选择状态，其中相应的一个 选择多个PRML处理器的输出信号。

公开(公告)号：US20050185559A1

公开(公告)日：2005-08-25

申请号：US11046686

申请日：2005-02-01

申请人： Hiroyuki Moro ,  Toshihiko Kaneshige ,  Hideyuki Yamakawa ,  Koichi Otake ,  Yukiyasu Tatsuzawa

发明人： Hiroyuki Moro ,  Toshihiko Kaneshige ,  Hideyuki Yamakawa ,  Koichi Otake ,  Yukiyasu Tatsuzawa

IPC分类号： G11B7/005 ,  G11B20/10 ,  G11B20/18

CPC分类号： G11B20/10009 ,  G11B20/10037 ,  G11B20/10055 ,  G11B20/10222 ,  G11B20/10296 ,  G11B2020/1287

摘要： A digital RF signal resulting from A/D conversion of an RF signal reproduced from an optical disk is compared with a plurality of set values, so that a predetermined waveform is detected from the digital RF signal. The wavelength of the detected waveform is measured, and the A/D conversion is controlled based on this wavelength. Comparing the digital RF signal with the plural set values enables high-accuracy waveform detection.

摘要翻译： 将从光盘再现的RF信号的A / D转换产生的数字RF信号与多个设定值进行比较，从而从数字RF信号检测预定波形。 测量检测波形的波长，并根据该波长控制A / D转换。 将数字RF信号与多个设定值进行比较可实现高精度波形检测。

公开(公告)号：US20050105440A1

公开(公告)日：2005-05-19

申请号：US10990522

申请日：2004-11-18

申请人： Koichi Otake ,  Hideyuki Yamakawa ,  Yukiyasu Tatsuzawa ,  Hiroyuki Moro ,  Toshihiko Kaneshige

发明人： Koichi Otake ,  Hideyuki Yamakawa ,  Yukiyasu Tatsuzawa ,  Hiroyuki Moro ,  Toshihiko Kaneshige

IPC分类号： G11B20/14 ,  G11B5/09 ,  G11B20/10 ,  G11B20/18 ,  H04N5/91

CPC分类号： G11B20/1403 ,  G11B2020/1287

摘要： A disk apparatus has a reading portion which reads out a plurality of frames stored in a disk and outputs a read signal, a detecting portion which determines that part of the read signal is identical to a frame synchronization code signal or determines that a deviation between a symbol of part of the read signal and a symbol of the frame synchronization code signal is within a certain time range to detect the frame synchronization code signals from the read signal, and a reproducing portion which reproduces the read signal in synchronization with the detected frame synchronization code signals.

摘要翻译： 磁盘装置具有：读出存储在磁盘中的多个帧的读出部，输出读取信号;检测部，其判定读取信号的一部分与帧同步码信号相同，或者判定为 读取信号的一部分的符号和帧同步码信号的符号在一定时间范围内，以检测来自读取信号的帧同步码信号，再现部分与检测到的帧同步同步地再现读取信号 代码信号。

公开(公告)号：US06757863B2

公开(公告)日：2004-06-29

申请号：US09953869

申请日：2001-09-18

申请人： Toshihiko Kaneshige ,  Tamotsu Ishigaki

发明人： Toshihiko Kaneshige ,  Tamotsu Ishigaki

IPC分类号： H03M1300

CPC分类号： G11B20/10 ,  G11B20/18 ,  H03M13/47

摘要： A decoding technique is disclosed for proving inexpensively a read channel circuit which has an error correction function and is applicable to high channel frequencies. In this read channel circuit, generating a reference slice level signal and a plurality of slice level signals which are different from the reference slice level signal, converting the playback signal into a plurality of binary signals synchronized with a channel clock according to each of the slice level signals, selecting two binary signals, measuring the phase distance between the two binary signals, judging the polarity of an inverted edge of a reference binary signal, and generating an error correction signal on the basis of the phase distance and the polarity of the inverted edge of the reference binary signal, whereby any error in the playback signal can be eliminated.

摘要翻译： 公开了一种解码技术，用于廉价地证明具有纠错功能并且适用于高信道频率的读通道电路。 在该读通道电路中，产生与参考限幅电平信号不同的参考限幅电平信号和多个限幅电平信号，根据每个切片将重放信号转换成与信道时钟同步的多个二进制信号 电平信号，选择两个二进制信号，测量两个二进制信号之间的相位距离，判断参考二进制信号的反相边沿的极性，并根据反相的相位距离和极性产生纠错信号 参考二进制信号的边沿，由此可以消除重放信号中的任何错误。