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81. 发明授权

US08107339B2 Method of evaluating reproduce signal and optical disc drive 有权
公开(公告)号：US08107339B2
公开(公告)日：2012-01-31
申请号：US12568977
申请日：2009-09-29
申请人： Hiroyuki Minemura , Soichiro Eto , Takahiro Kurokawa , Shuichi Kusaba
发明人： Hiroyuki Minemura , Soichiro Eto , Takahiro Kurokawa , Shuichi Kusaba
IPC分类号： G11B27/36 , G11B5/09
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/1816 , G11B20/182 , G11B2220/2541 , H03M13/39 , H03M13/6343
摘要： A highly efficient and reliable reproduced signal evaluation method and an optical disc drive using that method in which assuming that the number of 2T's appearing successively in a predetermined evaluation bitstream is i, the evaluation bitstream is divided into a main bitstream (5+2i) long and sub bitstreams at the ends of the main bitstream. The check process to determine whether a predetermined evaluation bitstream is included in the binarized bitstreams is replaced with a main bitstream agreement check. This can prevent an increase in the circuit size. At the same time, by separately summing up for each main bitstream the calculated results of Euclidean distance between the reproduced signal and the target signal corresponding to the evaluation bitstream, the size of an evaluation summing circuit can be reduced.

82. 发明申请

US20120002526A1 METHOD OF EVALUATING REPRODUCE SIGNAL AND OPTICAL DISC DEVICE 有权
标题翻译：评估重现信号和光盘设备的方法
公开(公告)号：US20120002526A1
公开(公告)日：2012-01-05
申请号：US13210429
申请日：2011-08-16
申请人： Hiroyuki Minemura , Soichiro Eto , Takahiro Kurokawa , Shuichi Kusaba
发明人： Hiroyuki Minemura , Soichiro Eto , Takahiro Kurokawa , Shuichi Kusaba
IPC分类号： G11B27/36
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/1816 , G11B20/182 , G11B2220/2541 , H03M13/39 , H03M13/6343
摘要： A highly efficient and reliable reproduced signal evaluation method and an optical disc drive using that method in which assuming that the number of 2T's appearing successively in a predetermined evaluation bitstream is i, the evaluation bitstream is divided into a main bitstream (5+2i) long and sub bitstreams at the ends of the main bitstream. The check process to determine whether a predetermined evaluation bitstream is included in the binarized bitstreams is replaced with a main bitstream agreement check. This can prevent an increase in the circuit size. At the same time, by separately summing up for each main bitstream the calculated results of Euclidean distance between the reproduced signal and the target signal corresponding to the evaluation bitstream, the size of an evaluation summing circuit can be reduced.
摘要翻译：使用该方法的高效可靠的再现信号评估方法和光盘驱动器，其中假定在预定评估比特流中连续出现的2T的数量为i，则将评估比特流分成主比特流（5 + 2i）长以及在主比特流的末端的子比特流。用于确定在二进制化比特流中是否包括预定评估比特流的检查处理被主比特列协议检查替换。这可以防止电路尺寸的增加。同时，通过对每个主比特流单独地求和再现信号与对应于评估比特流的目标信号之间的欧氏距离的计算结果，可以减小评估求和电路的大小。

83. 发明授权

US08085641B2 Reproduced signal evaluation method and write adjustment method 有权
标题翻译：再现信号评估方法和写入调整方法
公开(公告)号：US08085641B2
公开(公告)日：2011-12-27
申请号：US12836743
申请日：2010-07-15
申请人： Hiroyuki Minemura , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
发明人： Hiroyuki Minemura , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B7/00456 , G11B7/00458 , G11B20/10046 , G11B20/1012 , G11B20/10481 , G11B2007/0013 , G11B2220/2541
摘要： The present invention aims to provide a reproduced signal evaluation method and a write adjustment method for offering a Blu-ray disc having a large storage capacity with excellent media compatibility. An evaluation index L-SEAT is calculated through signed addition using a Euclidean distance difference calculated from at least one of target signals in which a focused edge is shifted to the right and left, and the quality of the reproduced signal is evaluated based on the evaluation index. Write condition adjustment using the index enables write adjustment not depending on SNR and achieving high adjustment accuracy.
摘要翻译：本发明的目的在于提供一种用于提供具有良好的媒体兼容性的具有大存储容量的蓝光盘的再现信号评估方法和写入调整方法。通过使用从聚焦边缘向左右移动的目标信号中的至少一个计算出的欧几里德距离差，通过带符号相加来计算评价指标L-SEAT，并且基于评估来评估再现信号的质量指数。使用该索引的写入条件调整可以使写入调整不依赖于SNR并实现高调整精度。

84. 发明申请

US20110047975A1 HONEYCOMB STRUCTURE-TYPE CATALYST FOR PURIFYING EXHAUST GAS EXHAUSTED FROM AUTOMOBILE, METHOD FOR PRODUCING THE SAME AND METHOD FOR PURIFYING EXHAUST GAS USING THE SAME CATALYST 审中-公开
标题翻译：用于净化汽车排气的蜂窝结构型催化剂，其制造方法和使用相同催化剂净化排气的方法
公开(公告)号：US20110047975A1
公开(公告)日：2011-03-03
申请号：US12989289
申请日：2009-04-22
申请人： Hiroki Nakayama , Hiroyuki Endo , Takahiro Kurokawa
发明人： Hiroki Nakayama , Hiroyuki Endo , Takahiro Kurokawa
IPC分类号： F01N3/00 , B21D51/16 , F01N3/10
CPC分类号： B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/407 , B01D2255/9022 , B01D2255/908 , B01D2255/91 , B01D2255/9207 , B01D2258/012 , B01D2258/014 , B01J21/066 , B01J23/58 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0248 , B01J37/038 , F01N3/2803 , Y02A50/2324 , Y02T10/22 , Y10T29/49345
摘要： A catalyst for purifying exhaust gas, which is a relatively cheap three-way-catalyst containing noble metal components, and is capable of suppressing sintering of the noble metals even at high temperature, and purifying a carbon monoxide (CO), a hydrocarbon (HC) and a nitrogen oxide (NOx), and is superior, in particular, in purifying the nitrogen oxide, along with a method for purifying exhaust gas. This catalyst is provided by a honeycomb structure-type catalyst having a carrier made of a honeycomb-type structure, coated with a catalyst composition in two or more layers, for purifying a carbon monoxide, a hydrocarbon and a nitrogen oxide contained in exhaust gas, characterized in that; a catalyst layer (A) at the upper layer side comprises a palladium component supported with a heat resistant inorganic oxide, an oxygen storage release material and a barium component, and a catalyst layer (B) at the lower layer side comprises a rhodium component supported with a cerium-zirconium-type composite oxide having a cerium/zirconium ratio by weight of 0.05 to 0.2, as converted to an oxide, or the like.
摘要翻译：一种用于净化废气的催化剂，其是含有贵金属组分的相对便宜的三元催化剂，并且即使在高温下也能够抑制贵金属的烧结，并且净化一氧化碳（CO），烃（HC ）和氮氧化物（NOx），并且特别优选氮氧化物的净化以及废气净化方法。该催化剂由蜂窝结构型催化剂提供，该蜂窝结构型催化剂具有由蜂窝结构体构成的载体，涂覆有两层以上的催化剂组合物，用于净化废气中所含的一氧化碳，烃和氮氧化物，其特征在于：在上层侧的催化剂层（A）包括由耐热无机氧化物负载的钯成分，储氧释放材料和钡成分，下层侧的催化剂层（B）包含负载的铑成分与锆/锆重量比为0.05〜0.2的铈 - 锆型复合氧化物，转化为氧化物等。

85. 发明申请

US20100284257A1 ADJUSTING METHOD FOR RECORDING CONDITION AND OPTICAL DISC DEVICE 有权
标题翻译：用于记录条件和光盘设备的调整方法
公开(公告)号：US20100284257A1
公开(公告)日：2010-11-11
申请号：US12608099
申请日：2009-10-29
申请人： Yusuke NAKAMURA , Koichiro Nishimura , Hiroyuki Minemura , Takahiro Kurokawa
发明人： Yusuke NAKAMURA , Koichiro Nishimura , Hiroyuki Minemura , Takahiro Kurokawa
IPC分类号： G11B20/18
CPC分类号： G11B20/10009 , G11B7/1267 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/22 , G11B20/225 , G11B2220/2541 , H03M13/41
摘要： In a optical disc system with constraint length equal to or greater than 5, under assumption that continuous 2T count included in a predetermined evaluation bit array is denoted by i and that length of evaluation bit array of interest is given by (5+2i), judgment is passed on whether binary bit arrays include the evaluation bit array. Previously prepared are the error vectors calculated on the basis of target signals corresponding to the evaluation bit arrays and the target signals derived from the binary bit arrays, and the selection of a desired error vector is performed depending on the result of the judgment. At the same time, an equalized error vector is calculated from the target signal derived from the binary bit array and the reproduced signal, and the inner product of the equalized error vector and the selected error vector is calculated.
摘要翻译：在具有等于或大于5的约束长度的光盘系统中，假定包括在预定评估位阵列中的连续2T计数由i表示，并且感兴趣的评估位阵列的长度由（5 + 2i）给出，传递二进制位数组是否包含评估位数组的判断。先前准备的是基于对应于评估比特列的目标信号和从二进制位阵列导出的目标信号计算的误差向量，并且根据判断结果执行期望误差向量的选择。同时，根据从二进制位阵列和再现信号得到的目标信号计算均衡误差向量，并且计算均衡误差向量和所选误差向量的内积。

86. 发明授权

US07782745B2 Optical disk 有权
公开(公告)号：US07782745B2
公开(公告)日：2010-08-24
申请号：US12588836
申请日：2009-10-29
申请人： Harukazu Miyamoto , Takahiro Kurokawa
发明人： Harukazu Miyamoto , Takahiro Kurokawa
IPC分类号： G11B7/24
CPC分类号： G11B20/0021 , G11B7/005 , G11B7/007 , G11B7/24082 , G11B20/00086 , G11B20/1403 , G11B27/19 , G11B27/24 , G11B2220/20
摘要： The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.

87. 发明申请

US20100195459A1 Adjustment Method Of Optimum Write Power And Optical Write/Retrieval Device 有权
标题翻译：最佳写入功率和光学写入/检索设备的调整方法
公开(公告)号：US20100195459A1
公开(公告)日：2010-08-05
申请号：US12760935
申请日：2010-04-15
申请人： Soichiro Eto , Koichi Watanabe , Takahiro Kurokawa
发明人： Soichiro Eto , Koichi Watanabe , Takahiro Kurokawa
IPC分类号： G11B19/00
CPC分类号： G11B7/0062 , G11B7/1267
摘要： A power adjustment method in which a modulation index is calculated from reproduced signals of patterns recorded by irradiating light onto an optical information recording medium with a recording power varied and an optimum power of irradiation light is set up using the modulation index. The power adjustment method includes calculating an optimum value PcO of a predetermined correction term Pc using a relation of a value obtained by subtracting the predetermined correction term Pc from the recording power and the modulation index, finding a value Pth of the recording power at which the modulation index becomes substantially zero in the relation of the value obtained by subtracting the optimum value PcO from the recording power and the modulation index, and setting up a value obtained by multiplying the value of Pth by a predetermined constant as a recording power of each of the recording patterns.
摘要翻译：一种功率调整方法，其中根据通过将光照射到记录功率变化的光信息记录介质上记录的图案的再现信号来计算调制指数，并且使用调制指数建立照射光的最佳功率。功率调整方法包括使用通过从记录功率减去预定校正项Pc和调制指数获得的值的关系来计算预定校正项Pc的最佳值PcO，找到记录功率的记录功率的值Pth，调制指数在通过从记录功率减去最佳值PcO而获得的值与调制指数之间的关系基本上为零，并且将通过将Pth的值乘以预定常数获得的值作为每个的记录功率录音模式。

88. 发明授权

US07663985B2 Information recording and reproduction method and information recording and reproduction device 失效
标题翻译：信息记录和再现方法和信息记录和再现装置
公开(公告)号：US07663985B2
公开(公告)日：2010-02-16
申请号：US11333583
申请日：2006-01-18
申请人： Takahiro Kurokawa , Hiromi Kudo , Harukazu Miyamoto
发明人： Takahiro Kurokawa , Hiromi Kudo , Harukazu Miyamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0948 , G11B7/13925
摘要： The focus offset FE0 corresponding to minimum jitter is learned in advance. When performing spherical aberration adjustment for each disk, the spherical aberration is adjusted so that the jitter reaches a minimum, while maintaining the focus offset at FE0. The invention provides a method for performing high-precision adjustment of the focus offset and spherical aberration, even in the case of a disk which does not have data recorded on it.
摘要翻译：预先学习对应于最小抖动的对焦偏移FE0。当对每个盘执行球面像差调整时，调节球面像差，使得抖动达到最小，同时保持在FE0处的聚焦偏移。本发明提供了即使在没有记录数据的盘的情况下，也可以进行高精度调整焦点偏移和球面像差的方法。

89. 发明授权

US07639595B2 Optical disk 有权
公开(公告)号：US07639595B2
公开(公告)日：2009-12-29
申请号：US12213763
申请日：2008-06-24
申请人： Harukazu Miyamoto , Takahiro Kurokawa
发明人： Harukazu Miyamoto , Takahiro Kurokawa
IPC分类号： G11B7/24
CPC分类号： G11B20/0021 , G11B7/005 , G11B7/007 , G11B7/24082 , G11B20/00086 , G11B20/1403 , G11B27/19 , G11B27/24 , G11B2220/20
摘要： The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.

90. 发明申请

US20090316539A1 OPTICAL HEAD AND OPTICAL DISK APPARATUS 有权
标题翻译：光头和光盘设备
公开(公告)号：US20090316539A1
公开(公告)日：2009-12-24
申请号：US12419421
申请日：2009-04-07
申请人： Hideharu Mikami , Harukazu Miyamoto , Takahiro Kurokawa
发明人： Hideharu Mikami , Harukazu Miyamoto , Takahiro Kurokawa
IPC分类号： G11B7/00
CPC分类号： G11B7/005 , G11B7/0956 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1367 , G11B7/1378 , G11B2007/0013
摘要： There are provided an interference type optical head and an optical disk apparatus, which have a signal amplification effect and which can be manufactured in sizes comparable to conventional optical heads. In an optical disk apparatus that performs signal amplification by making a light, which is used as a reference light without being irradiated on an optical disk and, interfere with reflected light from the optical disk, a corner cube prism that reflects the reference light is mounted on the same actuator as an objective lens. Further, there is provided a movable portion that adjusts the optical path length of the interfering light in accordance with the kind of optical disk being read and the recording layer being read. A wedge prism may be used for the movable portion, and a spherical aberration correction lens and an optical path length adjusting component may be moved integrally. Thus, a stable amplification effect may be obtained while keeping the overall size comparable to conventional apparatuses.
摘要翻译：提供了具有信号放大效果的干涉型光学头和光盘装置，其可以制造成与传统光学头相当的尺寸。在通过制造光而进行信号放大的光盘装置中，其被用作基准光而不被照射在光盘上并且干涉来自光盘的反射光，安装反射参考光的角立方棱镜在与物镜相同的致动器上。此外，提供了可移动部分，其根据正在读取的光盘的种类和正在读取的记录层来调节干涉光的光路长度。楔形棱镜可以用于可动部分，并且球面像差校正透镜和光程长度调节部件可以一体地移动。因此，可以获得稳定的放大效果，同时保持与常规设备相当的总体尺寸。

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