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71. 发明申请

US20070097803A1 INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS, INFORMATION REPRODUCING METHOD AND INFORMATION RECORDING METHOD 审中-公开
公开(公告)号：US20070097803A1
公开(公告)日：2007-05-03
申请号：US11564612
申请日：2006-11-29
申请人： Hideo Ando , Yutaka Kashihara , Akihito Ogawa , Hideki Takahashi
发明人： Hideo Ando , Yutaka Kashihara , Akihito Ogawa , Hideki Takahashi
IPC分类号： G11B21/08
CPC分类号： G11B7/00458 , G11B7/0053 , G11B7/00736 , G11B7/00745 , G11B7/261 , G11B20/10009 , G11B20/10055 , G11B20/1012 , G11B20/1217 , G11B20/1426 , G11B20/1833 , G11B2007/0013 , G11B2020/122 , G11B2020/1222 , G11B2020/1239 , G11B2020/1244 , G11B2020/1245 , G11B2020/1275 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1457 , G11B2220/21 , G11B2220/216 , G11B2220/237 , G11B2220/2537
摘要： An information recording medium includes a user information storage area which stores user information, a test write area which is extendable and for test write of information, a spare area which is extendable and capable of alternatively storing user information, and a recording position management information area including recordable range information expressing recordable ranges in the aforesaid test write area and the aforesaid spare area. The information recording medium, an information reproducing apparatus, an information reproducing method and an information recording method which make it easy to record and reproduce information properly are provided.

72. 发明申请

US20070081446A1 INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS, INFORMATION REPRODUCING METHOD AND INFORMATION RECORDING METHOD 审中-公开
公开(公告)号：US20070081446A1
公开(公告)日：2007-04-12
申请号：US11564701
申请日：2006-11-29
申请人： Hideo Ando , Yutaka Kashihara , Akihito Ogawa , Hideki Takahashi
发明人： Hideo Ando , Yutaka Kashihara , Akihito Ogawa , Hideki Takahashi
IPC分类号： G11B7/24
CPC分类号： G11B7/00458 , G11B7/0053 , G11B7/00736 , G11B7/00745 , G11B7/261 , G11B20/10009 , G11B20/10055 , G11B20/1012 , G11B20/1217 , G11B20/1426 , G11B20/1833 , G11B2007/0013 , G11B2020/122 , G11B2020/1222 , G11B2020/1239 , G11B2020/1244 , G11B2020/1245 , G11B2020/1275 , G11B2020/1277 , G11B2020/1278 , G11B2020/1287 , G11B2020/1457 , G11B2220/21 , G11B2220/216 , G11B2220/237 , G11B2220/2537
摘要： An information recording medium includes a user information storage area which stores user information, a test write area which is extendable and for test write of information, a spare area which is extendable and capable of alternatively storing user information, and a recording position management information area including recordable range information expressing recordable ranges in the aforesaid test write area and the aforesaid spare area. The information recording medium, an information reproducing apparatus, an information reproducing method and an information recording method which make it easy to record and reproduce information properly are provided.

73. 发明授权

US07082566B2 Signal quality evaluation method, information recording/reproducing system, and recording compensation method 失效
公开(公告)号：US07082566B2
公开(公告)日：2006-07-25
申请号：US10290474
申请日：2002-11-08
申请人： Yutaka Kashihara , Yuji Nagai , Akihito Ogawa
发明人： Yutaka Kashihara , Yuji Nagai , Akihito Ogawa
IPC分类号： H03M13/02 , H03D1/00 , G11B20/18
CPC分类号： G11B20/10009 , G11B7/0062 , G11B7/00736 , G11B20/10055 , G11B20/10481
摘要： Signal quality evaluation is performed using a predetermined reproduction signal, a first pattern corresponding to a signal waveform pattern of the reproduction signal, and a given pattern corresponding to the signal waveform pattern of the reproduction signal and being different from the first pattern.

74. 发明申请

US20050276213A1 Information recording medium, reproduction method, reproduction apparatus and manufacturing apparatus thereof 审中-公开
标题翻译：信息记录介质，再现方法，再现装置及其制造装置
公开(公告)号：US20050276213A1
公开(公告)日：2005-12-15
申请号：US11150341
申请日：2005-06-13
申请人： Akihito Ogawa , Chosaku Noda , Yutaka Kashihara , Yuji Nagai
发明人： Akihito Ogawa , Chosaku Noda , Yutaka Kashihara , Yuji Nagai
IPC分类号： G11B7/005 , G11B7/007 , G11B7/26 , G11B27/19 , G11B27/24 , G11B7/24
CPC分类号： G11B7/00745 , G11B7/0053 , G11B7/24082 , G11B7/261 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2575
摘要： The numbers of times by which plural types of segments are consecutively arranged are limited, an address reading performance is enhanced and address information is correctly read out based on determination of the number of consecutive segments. A track is divided into physical segments, N (=17) wobble data units of constant length are formed in each physical segment, the wobble data unit (WDU) is defined to include a first unit (P) having a wobble modulation portion in a first half portion, a second unit (S) having a wobble modulation portion in a latter half portion and a third unit (U) having no wobble modulation portion, and the physical segment is defined to have segment types (TYPE 1, 2, 3) which each include the third unit (U) in a certain area thereof without fail and respectively include the first, second and a combination of the first and second units in the remaining areas. In the arrangement on the track, a lower-limit number of times M1 by which the first and second types (TYPE1, TYPE2) are consecutively arranged and an upper-limit number of times M2 by which the second types (TYPE2) are consecutively arranged are limited and the first type (TYPE1) and the second type (TYPE2) are respectively arranged immediately before and after the third type (TYPE3).
摘要翻译：多个段连续排列的次数被限制，地址读取性能得到提高，并且基于确定连续段的数量来正确地读出地址信息。轨道被分成物理段，在每个物理段中形成N（= 17）个恒定长度的摆动数据单元，摆动数据单元（WDU）被定义为包括具有摆动调制部分的第一单元（P）前半部分，在后半部分具有摆动调制部分的第二单元（S）和没有摆动调制部分的第三单元（U），物理段被定义为具有段类型（类型1,2,3 ），其每一个都包括在其某一区域中的第三单元（U），并且分别包括其余区域中的第一单元，第二单元和第一单元和第二单元的组合。在轨道上的布置中，连续布置第一和第二类型（TYPE1，TYPE2）的下限次数M1和第二类型（TYPE2）连续布置的上限次数M2 是第一类型（TYPE1）和第二类型（TYPE2）分别紧靠在第三类型（TYPE3）之前和之后。

75. 发明授权

US06812868B2 Run length limited code generation method, run length limited code recording/reproducing apparatus, and run length limited code recording/reproduction method 失效
标题翻译：游程长度限制代码生成方法，游程长度限制代码记录/再现装置和游程长度限制代码记录/再现方法
公开(公告)号：US06812868B2
公开(公告)日：2004-11-02
申请号：US10615804
申请日：2003-07-10
申请人： Hideyuki Yamakawa , Akihito Ogawa , Yutaka Kashihara
发明人： Hideyuki Yamakawa , Akihito Ogawa , Yutaka Kashihara
IPC分类号： H03M700
CPC分类号： G11B20/10425 , G11B7/005 , G11B7/0053 , G11B20/10046 , G11B20/10055 , G11B20/10296 , G11B20/14 , G11B20/182 , G11B2020/1461 , H03M7/46 , H03M7/48
摘要： A run length limited code recording/reproduction apparatus according to an aspect of this invention includes a generation unit for generating a plurality of different code sequences which have recording densities that gradually become higher, and a recording unit for recording the plurality of different code sequences generated by the generation unit on a plurality of successive subfields in a test data field of an information storage medium.
摘要翻译：根据本发明的一个方面的行程长度有限的代码记录/再现装置包括：生成单元，用于生成具有逐渐变高的记录密度的多个不同的代码序列;以及记录单元，用于记录生成的多个不同的代码序列通过生成单元在信息存储介质的测试数据字段中的多个连续子场上。

76. 发明申请

US20120051201A1 DATA REPRODUCING APPARATUS 失效
标题翻译：数据再现设备
公开(公告)号：US20120051201A1
公开(公告)日：2012-03-01
申请号：US13071592
申请日：2011-03-25
申请人： Kazuo Watabe , Akihito Ogawa , Hideaki Okano , Takashi Usui
发明人： Kazuo Watabe , Akihito Ogawa , Hideaki Okano , Takashi Usui
IPC分类号： G11B27/22
CPC分类号： G11B7/00781 , G11B7/0065 , G11B7/083
摘要： According to one embodiment, a data reproducing apparatus includes a data recording medium, light source unit, light application unit, photodetector unit and control unit. An address mark string including address marks is formed on the data recording medium. The address marks are spaced from each other by a distance depending on address data. The light application unit is configured to split the light beam into a first branch light beam and a second branch light beam and apply the first and second branch light beams to the address mark string at different angles. The photodetector unit is configured to detect first reflected light beams and second reflected light beams from the address mark string to generate image data. The first and second reflected light beams result from the first and second branch light beams, respectively. The control unit is configured to reproduce address data based on the image data.
摘要翻译：根据一个实施例，数据再现装置包括数据记录介质，光源单元，光应用单元，光电检测器单元和控制单元。包括地址标记的地址标记串形成在数据记录介质上。地址标记根据地址数据彼此间隔一定距离。光施加单元被配置为将光束分成第一分支光束和第二分支光束，并且以不同的角度将第一和第二分支光束施加到地址标记串。光检测器单元被配置为从地址标记串检测第一反射光束和第二反射光束以产生图像数据。第一和第二反射光束分别由第一和第二分支光束产生。控制单元被配置为基于图像数据再现地址数据。

77. 发明申请

US20100135436A1 SIGNAL PROCESSING SYSTEM AND INFORMATION STORAGE MEDIUM 有权
标题翻译：信号处理系统和信息存储介质
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。

78. 发明授权

US07668064B2 Optical pickup unit and information recording/reproduction apparatus 失效
标题翻译：光学拾取单元和信息记录/再现装置
公开(公告)号：US07668064B2
公开(公告)日：2010-02-23
申请号：US11344956
申请日：2006-01-31
申请人： Nobuaki Kaji , Sumitaka Maruyama , Akihito Ogawa , Kazuo Watabe
发明人： Nobuaki Kaji , Sumitaka Maruyama , Akihito Ogawa , Kazuo Watabe
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/131 , G11B2007/0006
摘要： According to one embodiment, an optical pickup unit which can record, reproduction and erase information in/from an information recording medium has tracks with different pitches, the dividing means has at least a part of a dividing boundary line placing between an end of a 1st order diffraction light with the largest diffraction angle and an end of a 1st order diffraction light with the smallest diffraction angle of the reflected laser beam.
摘要翻译：根据一个实施例，可以在信息记录介质中记录，再现和擦除信息的光学拾取单元具有不同间距的轨道，该分割装置具有至少一部分分割边界线，其位于第一具有最大衍射角的次级衍射光和具有反射激光束的最小衍射角的1级衍射光的末端。

79. 发明申请

US20060002277A1 Optical disc apparatus 审中-公开
标题翻译：光盘装置
公开(公告)号：US20060002277A1
公开(公告)日：2006-01-05
申请号：US11169659
申请日：2005-06-30
申请人： Kazuo Watabe , Sumitaka Maruyama , Katsuo Iwata , Akihito Ogawa
发明人： Kazuo Watabe , Sumitaka Maruyama , Katsuo Iwata , Akihito Ogawa
IPC分类号： G11B7/00
CPC分类号： G11B7/13 , G11B7/1374 , G11B7/1376 , G11B2007/0013
摘要： An optical disc apparatus of the present invention in its broader aspects is configured to have a predetermined range of A/M2, which is determined by an area A of a light-receiving surface of a photodetector to receive a reflected laser beam reflected on first and second recording layers of an optical disc, and a lateral magnification M (ratio of a condenser lens focal length fc to an objective lens focal length fo) of a light-receiving system to pass a reflected laser beam.
摘要翻译：本发明的光盘装置在其更广泛的方面被配置为具有由接收光电检测器的光接收表面的面积A确定的A / M 2的预定范围在光盘的第一和第二记录层上反射的反射激光束，以及光接收系统的横向放大率M（聚光透镜焦距fc与物镜焦距fo的比率），以使反射激光束。

80. 发明授权

US08582413B2 Optical pickup and optical disk apparatus 失效
标题翻译：光学拾取和光盘设备
公开(公告)号：US08582413B2
公开(公告)日：2013-11-12
申请号：US13709787
申请日：2012-12-10
申请人： Chikara Tanioka , Kazuo Watabe , Hideaki Okano , Akihito Ogawa , Takashi Usui , Kazuaki Doi
发明人： Chikara Tanioka , Kazuo Watabe , Hideaki Okano , Akihito Ogawa , Takashi Usui , Kazuaki Doi
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G11B7/1275 , G11B7/1376 , G11B7/13927 , G11B2007/0006 , G11B2007/0013
摘要： According to one embodiment, an optical pickup configured to record and to reproduce on a layer of a disk, including, a light source configured to emit a laser beam, an objective lens including a variable use magnification and configured to focus the laser beam on the layer, a collimator lens configured to change the magnification of the objective lens by moving along an optical axis direction, and a liquid crystal module configured to generate spherical aberration to cancel a coma aberration which may occur because an object point and an image point of the objective lens at the use magnification do not exist on an optical axis of the objective lens.
摘要翻译：根据一个实施例，一种光学拾取器，被配置为在盘的层上记录和再现，包括被配置为发射激光束的光源，包括可变放大倍率的物镜，并且被配置为将激光束聚焦在层，准直透镜，被配置为通过沿着光轴方向移动来改变物镜的放大倍数;以及液晶模块，被配置为产生球面像差以消除可能由于对象点和图像点的像点而可能发生的彗形像差在物镜的光轴上不存在使用放大率的物镜。

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