公开(公告)号：US06587407B1

公开(公告)日：2003-07-01

申请号：US09457813

申请日：1999-12-09

申请人： Tadashi Nakamura ,  Yasumori Hino ,  Norio Miyatake

发明人： Tadashi Nakamura ,  Yasumori Hino ,  Norio Miyatake

IPC分类号： G11B509

CPC分类号： G11B20/10046 ,  G11B20/10009 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027

摘要： An information reproducing device for reproducing digital signals with an optical head from an optical disk includes a first equalizer for waveform-equalizing a reproduction signal, an adaptive learning device for renewing the equalization properties of the first waveform equalizer with an adaptation algorithm, a memory for storing a reproduction signal, a second waveform equalizer that reads signals from the memory and performs waveform equalization after an adaptive learning operation for the first waveform equalizer has been terminated, and a demodulator for demodulating the output of the second waveform equalizer. Thus, adaptive equalization processing can be performed with constantly superior equalization properties and without sacrificing data capacity.

公开(公告)号：US06252845B1

公开(公告)日：2001-06-26

申请号：US09128121

申请日：1998-08-03

申请人： Yasumori Hino ,  Norio Miyatake ,  Tadashi Nakamura

发明人： Yasumori Hino ,  Norio Miyatake ,  Tadashi Nakamura

IPC分类号： G11B724

CPC分类号： G11B27/3027 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/261 ,  G11B27/19 ,  Y10S430/146

摘要： An optical disk includes at least one region along a radial direction, and a plurality of tracks provided in the at least one region. The at least one region contains address regions radially positioned on the plurality of tracks. In the address regions, data which is common between two adjacent tracks of the plurality of tracks is recorded at positions aligned along the same radial direction on the two adjacent tracks, and data which is not common between the two adjacent tracks is recorded at positions along different radial directions on the two adjacent tracks.

摘要翻译： 光盘包括沿着径向方向的至少一个区域和设置在该至少一个区域中的多个轨道。 所述至少一个区域包含位于多个轨道上的径向定位的地址区。 在地址区域中，在两个相邻轨道上沿着相同的径向方向对准的位置处记录在多个轨道的两个相邻轨道之间共同的数据，并且在两个相邻轨道之间的位置记录不相同的数据 两个相邻轨道上的不同径向方向。

公开(公告)号：US06178151B1

公开(公告)日：2001-01-23

申请号：US09057887

申请日：1998-04-09

申请人： Yasumori Hino ,  Norio Miyatake ,  Masahiro Birukawa ,  Tadashi Nakamura

发明人： Yasumori Hino ,  Norio Miyatake ,  Masahiro Birukawa ,  Tadashi Nakamura

IPC分类号： G11B700

CPC分类号： G11B7/1381 ,  G11B7/22 ,  G11B11/10543

摘要： An optical head includes: a light source; a photodetector for generating a prescribed signal based on light which the photodetector receives; a converging optical system for converging a light beam emitted from the light source to be incident upon a prescribed reflective member; and a reproducing optical system for guiding reflected light from the prescribed reflective member to the photodetector. The reproducing optical system is configured for converging light on a prescribed converging point, and a filter having a light transmissive region for allowing light in the vicinity of a center of the converged light to selectively pass therethrough is provided in the vicinity of the converging point. The light transmissive region of the filter is formed by light which has passed through at least a part of the reproducing optical system and has been converged.

摘要翻译： 光头包括：光源; 用于根据光电检测器接收的光产生规定信号的光电检测器; 会聚光学系统，用于会聚从光源发射的光束入射到规定的反射构件上; 以及用于将来自规定反射构件的反射光引导到光电检测器的再现光学系统。 再现光学系统被配置为将光聚焦在规定的会聚点上，并且在会聚点附近设置具有用于允许会聚光中心附近的光选择性地通过的透光区域的滤光器。 滤光器的透光区域由已经通过再现光学系统的至少一部分并且已经会聚的光形成。

公开(公告)号：US5748592A

公开(公告)日：1998-05-05

申请号：US794816

申请日：1997-02-04

申请人： Yasumori Hino ,  Norio Miyatake ,  Masahiro Birukawa ,  Tadashi Nakamura

发明人： Yasumori Hino ,  Norio Miyatake ,  Masahiro Birukawa ,  Tadashi Nakamura

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/14 ,  G11B20/10 ,  G11B7/00

CPC分类号： G11B7/005 ,  G11B20/10009 ,  G11B7/0045 ,  G11B7/14

摘要： A disk drive apparatus is provided that can reproduce data at low bit error rate even if a crosstalk is large. This apparatus comprises means for writing three or more different states of record marks in a read track and adjacent tracks thereof on a disk storage medium, means for detecting read levels of the record marks in the read track, means for calculating every possible read level regarding every possible combination of the record marks in the read track and adjacent tracks thereof according to the detected read levels, and means for performing most-liklihood decoding of written data in accordance with the possible read levels as reference levels.

摘要翻译： 提供了一种磁盘驱动装置，即使串扰较大，也可以以低误码率再现数据。 该装置包括用于在磁盘存储介质上的读磁道和其相邻轨道中写入三个或更多个不同状态的记录标记的装置，用于检测读磁道中的记录标记的读取电平的装置，用于计算关于 根据检测到的读取电平，读取磁道和相邻轨道中的记录标记的每个可能的组合，以及用于根据可能的读取电平作为参考电平执行写入数据的最可能解码的装置。

公开(公告)号：US5377172A

公开(公告)日：1994-12-27

申请号：US69155

申请日：1993-05-28

申请人： Yasumori Hino ,  Norio Miyatake

发明人： Yasumori Hino ,  Norio Miyatake

IPC分类号： G11B5/02 ,  G11B11/10 ,  G11B11/105 ,  H03K17/00 ,  H03K17/687

CPC分类号： G11B11/10508 ,  H03K17/6871 ,  H03K2217/0036

摘要： A modulated magnetic field generation circuit is used in a disk recording apparatus which can overwrite data on a magneto-optical disk. The modulated magnetic field generation circuit includes a first coil for applying the magnetic field modulated for recording to the magneto-optical disk, a second coil for storing the energy used to reverse the direction of the current flowing to the first coil, a current limiter for limiting the current flowing to the second coil, and switching elements for changing the direction of the current flowing to the second coil to the first coil. Thus, a high frequency modulated magnetic field is generated with low power consumption and low voltage.

摘要翻译： 调制磁场产生电路用于可以覆盖磁光盘上的数据的盘记录装置中。 调制磁场产生电路包括用于将用于记录调制的磁场施加到磁光盘的第一线圈，用于存储用于反转流向第一线圈的电流的方向的能量的第二线圈，用于 限制流向第二线圈的电流，以及用于将流过第二线圈的电流的方向改变为第一线圈的开关元件。 因此，以低功耗和低电压产生高频调制磁场。

公开(公告)号：USRE45695E1

公开(公告)日：2015-09-29

申请号：US13462117

申请日：2012-05-02

申请人： Mitsuaki Oshima ,  Yasumori Hino

发明人： Mitsuaki Oshima ,  Yasumori Hino

IPC分类号： G08B13/14 ,  G06K7/00

CPC分类号： G06K7/0008 ,  G11B7/24038 ,  G11B23/0042 ,  G11B27/105 ,  G11B27/11 ,  G11B27/24

摘要： An optical disc according to the present invention includes a plurality of recording layers; a receiving section for receiving, from outside an optical disc, a switching instruction for switching a target layer to be targeted for recording or reproducing information among the plurality of the recording layers; and a switching section for switching the target layer among the plurality of recording layers, based on the switching instruction received.

摘要翻译： 根据本发明的光盘包括多个记录层; 接收部分，用于从光盘外部接收用于切换要在多个记录层中记录或再现信息的目标层的目标层的切换指令; 以及切换部，用于根据接收到的切换指令来切换多个记录层中的目标层。

公开(公告)号：US20130173993A1

公开(公告)日：2013-07-04

申请号：US13824152

申请日：2012-08-01

申请人： Keisuke Fujimoto ,  Yasumori Hino

发明人： Keisuke Fujimoto ,  Yasumori Hino

IPC分类号： G06F11/10

CPC分类号： G06F11/10 ,  G11B20/1833 ,  G11B2020/185 ,  G11B2220/2537 ,  H03M13/1111 ,  H03M13/1128 ,  H03M13/41

摘要： A control device (211) inputs reliability information on the same data block a plurality of times into a reliability storage memory (202). A reliability generating device (201) generates anew reliability information by performing computation processing based on a stochastic computation by using reliability information generated in the previous cycle that has been saved in the reliability storage memory (202) and reliability information generated in the present cycle, and saves the reliability information generated anew in the reliability storage memory (202) when the decoding is performed by using reliability information on the data block same as that in the previous cycle. A column processing computation device (204) computes a column processing output value by using the reliability information generated anew and saved in the reliability storage memory (202) and a row processing output value.

摘要翻译： 控制装置（211）将相同数据块上的可靠性信息多次输入到可靠性存储存储器（202）中。 可靠性生成装置（201）通过使用保存在可靠性存储存储器（202）中的上一个循环中生成的可靠性信息和在本周期中生成的可靠性信息，通过进行基于随机计算的计算处理，生成新的可靠性信息， 并且通过使用与前一周期相同的数据块的可靠性信息来执行解码时，将可靠性信息重新保存在可靠性存储存储器（202）中。 列处理计算装置（204）通过使用重新生成并保存在可靠性存储存储器（202）中的可靠性信息和行处理输出值来计算列处理输出值。

公开(公告)号：US08395980B2

公开(公告)日：2013-03-12

申请号：US13391483

申请日：2010-07-30

申请人： Yoshiaki Komma ,  Joji Anzai ,  Yasumori Hino ,  Kousei Sano ,  Hideki Nakata ,  Keisuke Fujimoto ,  Takeharu Yamamoto ,  Takeshi Shimamoto

发明人： Yoshiaki Komma ,  Joji Anzai ,  Yasumori Hino ,  Kousei Sano ,  Hideki Nakata ,  Keisuke Fujimoto ,  Takeharu Yamamoto ,  Takeshi Shimamoto

IPC分类号： G11B7/00

CPC分类号： G11B7/1381 ,  G11B7/1275 ,  G11B2007/0006 ,  G11B2007/0013

摘要： When information is recorded or reproduced on or from an optical information medium having three or more recording layers using blue light, interference by another layer light is reduced and, when information is reproduced from an optical information medium using red light, an S/N ratio is held excellently high.An optical head device includes a first laser light source (1) which emits blue light, a second laser light source (2) which emits red light, an objective lens (11) which focuses the blue light onto a recording layer of a first optical disc (12) or focuses the red light onto a recording layer of a second optical disc (13), a photodetector (9) which receives the blue light reflected by the recording layer of the first optical disc (12) or the red light reflected by the recording layer of the second optical disc (13) and outputs an electric signal in accordance with an amount of the received blue light or red light, and a wavelength selective light blocking region (7x) which blocks a predetermined range of the blue light including an optical axis thereof to prevent the predetermined range from reaching the photodetector (9), and transmits the red light.

摘要翻译： 当使用蓝光在具有三个或更多个记录层的光信息介质上记录或再现信息时，减少了另一层光的干扰，并且当使用红光从光信息介质再现信息时，S / N比 举办得非常高。 光头装置包括发射蓝光的第一激光光源（1），发出红光的第二激光光源（2），将蓝光聚焦到第一光学记录层上的物镜（11） 盘（12）或将红光聚焦到第二光盘（13）的记录层上，接收由第一光盘（12）的记录层反射的蓝光的光电检测器（9）或反射的红光 通过第二光盘（13）的记录层，并根据所接收的蓝光或红光的量输出电信号，以及阻挡蓝光的预定范围的波长选择性遮光区域（7x） 包括其光轴以防止预定范围到达光电检测器（9），并发送红光。

公开(公告)号：US08369200B2

公开(公告)日：2013-02-05

申请号：US13238060

申请日：2011-09-21

申请人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

发明人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

IPC分类号： G11B7/00

CPC分类号： G11B7/24038 ,  G11B7/005 ,  G11B7/09 ,  G11B7/13925 ,  G11B2007/0013

摘要： An optical recording medium and an optical information device that improve the quality of a servo signal and a reproduction signal. In the optical recording medium, when shape-wise thicknesses tr1, tr2, tr3, and tr4 of a cover layer (42), a first intermediate layer (43), a second intermediate layer (44), and a third intermediate layer (45) are respectively converted into thicknesses t1, t2, t3, and t4 of the respective corresponding layers each having a predetermined refractive index “no”, a defocus amount with respect to a layer having a refractive index nrα and a thickness trα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)), and a defocus amount with respect to a layer having the refractive index “no” and a thickness tα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)) are equal to each other. Further, the thicknesses t1, t2, t3, and t4 satisfy |t1−(t2+t3+t4)|≧1 μm, a difference between any two values of the thicknesses t1, t2, t3, and t4 is set to 1 μm or more, and |(t1+t2)−(t3+t4)|≧1 μm.

摘要翻译： 一种提高伺服信号的质量和再现信号的光学记录介质和光学信息设备。 在光记录介质中，当覆盖层（42），第一中间层（43），第二中间层（44）和第三中间层（45）的形状厚度tr1，tr2，tr3和tr4 ）分别转换成各自具有预定折射率no的相应层的厚度t1，t2，t3和t4，相对于具有折射率nrα和厚度trα的层的散焦量（满足：1＆nlE;α＆nlE ; n（其中α是正整数，n是4以上的整数））和相对于具有折射率no和厚度tα的层的散焦量（满足1＆nlE;α＆nlE; n（其中α 是正整数，n是4以上的整数））彼此相等。 另外，厚度t1，t2，t3，t4满足| t1〜t2（t3 + t4）|≥1μm，将厚度t1，t2，t3，t4的任意两个值之差设定为1μm 以上|（t1 + t2） - （t3 + t4）|≥1μm。

公开(公告)号：US08290348B2

公开(公告)日：2012-10-16

申请号：US11904356

申请日：2007-09-27

申请人： Masanori Ito ,  Masafumi Shimotashiro ,  Makoto Mitsuda ,  Tadashi Nakamura ,  Yasumori Hino

发明人： Masanori Ito ,  Masafumi Shimotashiro ,  Makoto Mitsuda ,  Tadashi Nakamura ,  Yasumori Hino

IPC分类号： H04N5/92

CPC分类号： H04N9/8042 ,  G11B27/034 ,  G11B27/036 ,  G11B27/3027 ,  G11B27/329 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H04N5/85 ,  H04N9/8063

摘要： The present invention provides an AV data recording apparatus and method that facilitate various processes concerning a recorded video, including continuous reproduction, digital transmission, file operation, partial deletion, and post-recording. The AV data recording apparatus divides an audio signal and a video signal into transport packets having a predetermined unit length, assembles a plurality of transport packets as one transport stream and executes recording. Accordingly, this invention enables managing whether a logical block is used or not, detecting a continuous data area comprising plural logical blocks that ensure realtime continuous reproduction, and determining logical block numbers of continuous data areas to be recorded. As a result, the transport stream is recorded continuously on a plurality of detected continuous data areas.

摘要翻译： 本发明提供了一种AV数据记录装置和方法，其有助于关于记录视频的各种处理，包括连续再现，数字传输，文件操作，部分删除和后记录。 AV数据记录装置将音频信号和视频信号分成具有预定单位长度的传输分组，将多个传输分组组合为一个传输流，并执行记录。 因此，本发明能够管理是否使用逻辑块，检测包括确保实时连续再现的多个逻辑块的连续数据区，以及确定要记录的连续数据区的逻辑块号。 结果，传输流被连续地记录在多个检测到的连续数据区域上。