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1. 发明授权

US06324138B1 Digital disk recording and reproduction apparatus 有权
标题翻译：数字盘记录和再现装置
公开(公告)号：US06324138B1
公开(公告)日：2001-11-27
申请号：US09599532
申请日：2000-06-23
申请人： Yoshihiro Hori , Hisashi Matsuyama , Akiomi Kunisa , Nobuo Itoh , Seiichiro Takahashi , Toshiaki Hioki , Kenji Asano , Noboru Mamiya , Yoshiharu Uchihara , Kenji Nakao , Satoshi Sumi , Kenji Torazawa
发明人： Yoshihiro Hori , Hisashi Matsuyama , Akiomi Kunisa , Nobuo Itoh , Seiichiro Takahashi , Toshiaki Hioki , Kenji Asano , Noboru Mamiya , Yoshiharu Uchihara , Kenji Nakao , Satoshi Sumi , Kenji Torazawa
IPC分类号： G11B1552
CPC分类号： G11B7/0045 , G11B7/004 , G11B7/00718 , G11B7/00745 , G11B7/24082 , G11B11/10502 , G11B11/10504 , G11B11/10515 , G11B11/10595 , G11B20/1426 , G11B27/24 , G11B2020/1457 , G11B2220/216 , G11B2220/2562
摘要： A meandering groove is formed in a digital disk (10) with a wobble signal that is wobbled to reproduce a clock signal. The wobble signal is read out by an optical head (26). An address detection circuit (40) detects an address signal that is multiplexed with the wobble signal. A PLL oscillation circuit (24) provides a clock signal in synchronization with the wobble signal. Data is modulated by a modulation circuit (16) according to the clock signal and a timing signal based on the address signal, and recorded on the digital disk (10). In reproduction, a RF signal in the wobble signal is converted into a digital signal by an A/D converter (42). The signal is demodulated by a demodulation circuit (44) for data output.
摘要翻译：在摆动摆动信号的数字盘（10）中形成曲折的凹槽以再现时钟信号。摆动信号由光学头（26）读出。地址检测电路（40）检测与摆动信号多路复用的地址信号。 PLL振荡电路（24）提供与摆动信号同步的时钟信号。数据由调制电路（16）根据时钟信号和基于地址信号的定时信号进行调制并记录在数字盘（10）上。在再现中，摆动信号中的RF信号由A / D转换器（42）转换成数字信号。该信号由用于数据输出的解调电路（44）解调。

2. 发明授权

US06621772B2 Record medium and reproducing apparatus of the same for detecting an offset correction 有权
标题翻译：记录其用于检测偏移校正的介质和再现装置
公开(公告)号：US06621772B2
公开(公告)日：2003-09-16
申请号：US09750067
申请日：2000-12-29
申请人： Kenji Asano , Noboru Mamiya , Yoshiharu Uchihara , Satoshi Sumi , Kenji Nakao , Hiroshi Watanabe , Toshiaki Hioki , Yoshihiro Hori , Hisashi Matsuyama , Kenji Torazawa , Kenji Tanase , Sayoko Tanaka , Yoshihisa Suzuki , Shigeki Hori
发明人： Kenji Asano , Noboru Mamiya , Yoshiharu Uchihara , Satoshi Sumi , Kenji Nakao , Hiroshi Watanabe , Toshiaki Hioki , Yoshihiro Hori , Hisashi Matsuyama , Kenji Torazawa , Kenji Tanase , Sayoko Tanaka , Yoshihisa Suzuki , Shigeki Hori
IPC分类号： G11B700
CPC分类号： G11B7/00745 , G11B7/005 , G11B7/00718 , G11B11/10563
摘要： A magneto-optical record medium and a reproducing apparatus for the same allow data reproduction having good characteristics by a simple structure. The magneto-optical record medium includes a plurality of first grooves (3) each having sidewalls, at least one of which is wobbled in accordance with address information; an address mark (21) formed by changing a width of a land located between second grooves connected to the first grooves; and third grooves wobbled cyclically, formed in a data portion magnetically storing data and connected to the second grooves. The reproducing apparatus reproduces the data from the magneto-optical record medium.
摘要翻译：磁光记录介质及其再现装置通过简单的结构允许具有良好特性的数据再现。磁光记录介质包括多个第一凹槽（3），每个第一凹槽（3）具有侧壁，其中至少一个凹槽根据地址信息而摆动; 通过改变位于连接到第一槽的第二槽之间的焊盘的宽度而形成的地址标记（21）以及周期性摆动的第三槽，形成在磁性存储数据的数据部分中，并连接到第二槽。再现装置再现来自磁光记录介质的数据。

3. 发明授权

US06400653B1 Information recording/reproducing apparatus to record/reproduce information on a recording medium recorded with an address mark 有权
标题翻译：用于在记录有地址标记的记录介质上记录/再现信息的信息记录/再现装置
公开(公告)号：US06400653B1
公开(公告)日：2002-06-04
申请号：US09355831
申请日：1999-08-05
申请人： Kenji Torazawa , Kenji Asano , Satoshi Sumi , Yoshiharu Uchihara , Noboru Mamiya , Toshiaki Hioki
发明人： Kenji Torazawa , Kenji Asano , Satoshi Sumi , Yoshiharu Uchihara , Noboru Mamiya , Toshiaki Hioki
IPC分类号： G11B1100
CPC分类号： G11B11/10584 , G11B7/0045 , G11B7/005 , G11B7/00718 , G11B7/00745 , G11B11/10513 , G11B11/10515 , G11B11/10565 , G11B11/10578 , G11B11/10595 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2220/2525
摘要： An magneto-optical disc recording/reproducing apparatus includes an optical head (36) to detect a wobble (46) and an address mark (81 to 84) in an magneto-optical disc (31) and output a wobble signal (WB1, WB2) and an address mark signal (AML, AMG), a PLL circuit (47) to generate a clock signal (CK) in response to wobble signal (WB1), an address mark synchronous signal generation circuit (46) to generate an address mark synchronous signal (AM) in response to address mark signal (AML, AMG), a synchronizing circuit (48) to synchronize clock signal (CK) with address mark synchronous signal (AM) and generate a synchronized clock signal (SCK), and a timing setting circuit (49) to generate a timing pulse signal (TG1) to control a magnetic head driving circuit (34) and a timing pulse signal (TG2) to control a laser driving circuit (35). The recording/reproducing apparatus can detect a address mark (81 to 84), record la data signal on magneto-optical disc (31) in synchronization with the detected address mark, and reproduce a data signal from magneto-optical disc (31) in synchronization with the detected address mark, so that the data signal can be surely recorded/reproduced.
摘要翻译：磁光盘记录/重放装置包括一个用于检测磁光盘（31）中的摆动（46）和地址标记（81至84）的光头（36），并输出摆动信号（WB1，WB2 ）和地址标记信号（AML，AMG），PLL电路（47），用于响应于摆动信号（WB1）产生时钟信号（CK），地址标记同步信号产生电路（46）产生地址标记响应于地址标记信号（AML，AMG）的同步信号（AM），同步电路（48），用于将时钟信号（CK）与地址标记同步信号（AM）同步并产生同步时钟信号（SCK），以及定时设定电路（49），生成用于控制磁头驱动电路（34）的定时脉冲信号（TG1）和定时脉冲信号（TG2），以控制激光驱动电路（35）。记录/再现装置可以检测地址标记（81至84），与检测到的地址标记同步地在磁光盘（31）上记录数据信号，并且从磁光盘（31）再现数据信号与检测到的地址标记进行同步，从而可以可靠地记录/再现数据信号。

4. 发明授权

US06198710B1 Digital recording method, digital disk, digital disk recording device, and digital disk reproducing device 失效
标题翻译：数字记录方法，数字盘，数字盘记录装置和数字盘重放装置
公开(公告)号：US06198710B1
公开(公告)日：2001-03-06
申请号：US09091163
申请日：1998-06-09
申请人： Yoshihiro Hori , Hisashi Matsuyama , Akiomi Kunisa , Nobuo Itoh , Seiichiro Takahashi , Toshiaki Hioki , Kenji Asano , Noboru Mamiya , Yoshiharu Uchihara , Kenji Nakao , Satoshi Sumi , Kenji Torazawa
发明人： Yoshihiro Hori , Hisashi Matsuyama , Akiomi Kunisa , Nobuo Itoh , Seiichiro Takahashi , Toshiaki Hioki , Kenji Asano , Noboru Mamiya , Yoshiharu Uchihara , Kenji Nakao , Satoshi Sumi , Kenji Torazawa
IPC分类号： G11B576
CPC分类号： G11B7/0045 , G11B7/004 , G11B7/00718 , G11B7/00745 , G11B7/24082 , G11B11/10502 , G11B11/10504 , G11B11/10515 , G11B11/10595 , G11B20/1426 , G11B27/24 , G11B2020/1457 , G11B2220/216 , G11B2220/2562
摘要： A meandering groove is formed in a digital disk (10) with a wobble signal that is wobbled to reproduce a clock signal. The wobble signal is read out by an optical head (26). An address detection circuit (40) detects an address signal that is multiplexed with the wobble signal. A PLL oscillation circuit (24) provides a clock signal in synchronization with the wobble signal. Data is modulated by a modulation circuit (16) according to the clock signal and a timing signal based on the address signal, and recorded on the digital disk (10). In reproduction, a RF signal in the wobble signal is converted into a digital signal by an A/D converter (42). The signal is demodulated by a demodulation circuit (44) for data output.
摘要翻译：在摆动摆动信号的数字盘（10）中形成曲折的凹槽以再现时钟信号。摆动信号由光学头（26）读出。地址检测电路（40）检测与摆动信号多路复用的地址信号。 PLL振荡电路（24）提供与摆动信号同步的时钟信号。数据由调制电路（16）根据时钟信号和基于地址信号的定时信号进行调制并记录在数字盘（10）上。在再现中，摆动信号中的RF信号由A / D转换器（42）转换成数字信号。该信号由用于数据输出的解调电路（44）解调。

5. 发明授权

US06243326B1 Recording and reproduction device for a magneto-optic recording medium capable of recording information according to optical super-resolution 失效
标题翻译：能够根据光学超分辨率记录信息的磁光记录介质的记录和再现装置
公开(公告)号：US06243326B1
公开(公告)日：2001-06-05
申请号：US09101800
申请日：1998-10-19
申请人： Satoshi Sumi , Yoshihisa Suzuki , Atsushi Yamaguchi , Kenji Tanase , Yoshiharu Uchihara , Kenji Torazawa , Seiji Murata
发明人： Satoshi Sumi , Yoshihisa Suzuki , Atsushi Yamaguchi , Kenji Tanase , Yoshiharu Uchihara , Kenji Torazawa , Seiji Murata
IPC分类号： G11B1100
CPC分类号： G11B11/1051 , G11B11/10508 , G11B11/10515 , G11B11/10543 , G11B11/10586
摘要： A magneto-optic disk and a recording/reproduction device therefor adopt optical super-resolution to increase recording capacity. More specifically, the magneto-optic disk has an heat emitting layer (6) on a recording layer (4) and still preferably has an intermediate layer (8) between a reproduction layer (3) and the recording layer (4). The recording/reproduction device includes a circuit (33) for pulsing a laser beam to be radiated to the magneto-optic disk and still preferably includes a polarization rotating unit (50) and a polarizing filter (51) for blocking only the center of the laser beam in reproduction. The heat emitting layer (6) diffusing any heat generated by the laser beam, and the discontinuously radiated laser beam allow small recording domain. The laser beam having its center blocked forms smaller main lobe due to diffraction effect.
摘要翻译：磁光盘及其记录/再现装置采用光学超分辨率来增加记录容量。更具体地，磁光盘在记录层（4）上具有发热层（6），并且还优选地在再现层（3）和记录层（4）之间具有中间层（8）。记录/再现装置包括用于脉冲激光束以辐射到磁光盘的电路（33），并且还优选地包括偏振旋转单元（50）和偏振滤光器（51），用于仅阻挡激光束在再现。发热层（6）扩散由激光束产生的热量，不连续辐射的激光束允许小的记录域。具有中心阻挡的激光束由于衍射效应而形成较小的主瓣。

6. 发明授权

US5968678A Magneto-optical recording medium and manufacturing method thereof 失效
标题翻译：磁光记录介质及其制造方法
公开(公告)号：US5968678A
公开(公告)日：1999-10-19
申请号：US689149
申请日：1996-07-30
申请人： Kenji Tanase , Atsushi Yamaguchi , Yoshihisa Suzuki , Satoshi Sumi , Yoshiharu Uchihara , Seiji Murata , Kenji Torasawa
发明人： Kenji Tanase , Atsushi Yamaguchi , Yoshihisa Suzuki , Satoshi Sumi , Yoshiharu Uchihara , Seiji Murata , Kenji Torasawa
IPC分类号： G11B11/105 , G11B5/66
CPC分类号： G11B11/1051 , G11B11/10506 , G11B11/10515 , G11B11/10586 , G11B11/10595 , Y10S428/90
摘要： In magneto-optical recording medium, on a transparent substrate of polycarbonate resin, an SiN film having the thickness of 600 to 800 .ANG. and surface roughness Rmax of at most 10 nm is formed. On the SiN film, a GdFeCo reading layer having the thickness of 800 to 1200 .ANG. with Gd content of 30 to 36 at. % and Co content of 12 to 50 at. % is formed. On the reading layer, a TbFeCo recording layer of which Co content is 10 to 16 at. % is formed. The recording layer is a perpendicular magnetization film, and the reading layer is an in-plane magnetization film. At the time of reading, the reading and recording layers are heated, and the direction of magnetization of the recording layer is transferred to the reading layer only in the prescribed heated area. Information can be read only from the transferred portion, and thus a super resolution effect is obtained. When Kerr rotation angle .theta..sub.K is measured for the light reflected from the reading layer while the temperatures of the reading and recording layers are elevated, .theta..sub.K is approximately in proportion to Cth power of the elevated temperature t, wherein C is at least 8.0.
摘要翻译：在磁光记录介质中，在聚碳酸酯树脂的透明基板上形成厚度为600〜800的SiN膜，表面粗糙度Rmax为10nm以下。在SiN膜上，具有800〜1200厚度的GdFeCo读取层，Gd含量为30〜36at。％，Co含量为12〜50。％形成了。在读取层上，Co含量为10〜16at的TbFeCo记录层。％形成了。记录层是垂直磁化膜，读取层是面内磁化膜。在读取时，读取和记录层被加热，并且仅在规定的加热区域中记录层的磁化方向被转移到读取层。信息只能从传送部分读取，从而获得超分辨率效果。当读取层和记录层的温度升高时，对于从读取层反射的光测量克尔旋转角θK时，θK与升高温度t的Cth功率大致成比例，其中C至少为8.0。

7. 发明授权

US06847590B2 Magneto-optical recording medium including a calibration magnetic domain recorded in a predetermined pattern in a recording layer 失效
标题翻译：磁光记录介质包括以记录层中的预定图案记录的校准磁畴
公开(公告)号：US06847590B2
公开(公告)日：2005-01-25
申请号：US09931080
申请日：2001-08-17
申请人： Atsushi Yamaguchi , Naoyuki Takagi , Yoshiharu Uchihara , Satoshi Sumi , Hiroyuki Awano , Hiroshi Shirai , Hitoshi Watanabe , Norio Ohta
发明人： Atsushi Yamaguchi , Naoyuki Takagi , Yoshiharu Uchihara , Satoshi Sumi , Hiroyuki Awano , Hiroshi Shirai , Hitoshi Watanabe , Norio Ohta
IPC分类号： G11B7/007 , G11B7/013 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10595 , G11B7/00736 , G11B7/24085 , G11B11/10515 , G11B11/10584
摘要： A magneto-optical recording medium which includes a reproducing layer. When a laser beam is irradiated to the magneto-optical recording medium, a magnetic domain in a recording layer is transferred, through enlargement, to a reproducing layer increased in temperature. The magneto-optical recording medium further includes a calibration area that has a calibration magnetic domain recorded in a predetermined pattern in the recording layer. In a reproducing apparatus, a laser beam of an optical head is adjusted in output depending upon a reproduced signal obtained by reproducing the calibration magnetic domain.
摘要翻译：一种磁光记录介质，包括再现层。当激光束照射到磁光记录介质时，记录层中的磁畴通过放大转移到温度升高的再生层。磁光记录介质还包括具有以记录层中的预定图案记录的校准磁畴的校准区域。在再现装置中，根据通过再现校准磁畴获得的再现信号，调节光学头的激光束的输出。

8. 发明授权

US06301199B1 Magneto-optical recording medium and recording/reproducing apparatus therefor in which recorded magnetic domains are transferred from the recording layer to the reproducing layer 失效
标题翻译：磁光记录介质及其记录/再现装置，其中记录的磁畴从记录层转移到再现层
公开(公告)号：US06301199B1
公开(公告)日：2001-10-09
申请号：US09108317
申请日：1998-07-01
申请人： Atsushi Yamaguchi , Naoyuki Takagi , Yoshiharu Uchihara , Satoshi Sumi , Hiroyuki Awano , Hiroshi Shirai , Hitoshi Watanabe , Norio Ohta
发明人： Atsushi Yamaguchi , Naoyuki Takagi , Yoshiharu Uchihara , Satoshi Sumi , Hiroyuki Awano , Hiroshi Shirai , Hitoshi Watanabe , Norio Ohta
IPC分类号： G11B1100
CPC分类号： G11B11/10584 , G11B7/00736 , G11B7/24085 , G11B11/10515 , G11B11/10595
摘要： A magneto-optical recording medium which includes a reproducing layer. When a laser beam is irradiated to the magneto-optical recording medium, a magnetic domain in a recording layer is transferred, through enlargement, to a reproducing layer increased in temperature. The magneto-optical recording medium further includes a calibration area that has a calibration magnetic domain recorded in a predetermined pattern in the recording layer. In a reproducing apparatus, a laser beam of an optical head is adjusted in output depending upon a reproduced signal obtained by reproducing the calibration magnetic domain.
摘要翻译：一种磁光记录介质，包括再现层。当激光束照射到磁光记录介质时，记录层中的磁畴通过放大转移到温度升高的再生层。磁光记录介质还包括具有以记录层中的预定图案记录的校准磁畴的校准区域。在再现装置中，根据通过再现校准磁畴获得的再现信号，调节光学头的激光束的输出。

9. 发明授权

US4993011A Optical recording apparatus with simultaneous erasing and recording 失效
标题翻译：具有同时擦除和记录的光记录装置
公开(公告)号：US4993011A
公开(公告)日：1991-02-12
申请号：US425503
申请日：1989-10-20
申请人： Kenji Torazawa , Satoshi Sumi , Seiji Murata , Shigekazu Minechika
发明人： Kenji Torazawa , Satoshi Sumi , Seiji Murata , Shigekazu Minechika
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/08 , G11B7/09 , G11B7/125 , G11B7/13 , G11B11/105
CPC分类号： G11B11/10597 , G11B11/10519 , G11B11/10532 , G11B11/10576 , G11B7/0045 , G11B7/08 , G11B7/125 , G11B7/131 , G11B7/0901 , G11B7/0903 , G11B7/0909
摘要： An erasing beam B1 and a recording beam B2 emitted from a laser diode array 20 are focused on different tracks of a optical magnetic disk D, the erasing beam B1 being focused on a track located ahead of a track on which the recording beam B2 is focused. The reflected beams of the erasing beam B1 and the recording beam B2 are separated respectively into two polarized components by means of a polarized beam splitter 17 and the polarized components are received by photo sensor means 23 and 24. Based on outputs of the photo sensor means 23 and 24, an address signal, a focus error signal and a tracking error signal are obtained. At the time of reproduction, the laser diode array 20 emits a reproducing beam so that the photo sensor means provide a reproducing signal.
摘要翻译：从激光二极管阵列20发射的擦除光束B1和记录光束B2聚焦在光盘D的不同轨道上，擦除光束B1被聚焦在位于记录光束B2聚焦的光道前方的光道上。擦除光束B1和记录光束B2的反射光束通过偏振光束分离器17分别分离成两个偏振分量，并且偏振分量被光传感器装置23和24接收。基于光传感器装置 23和24，获得地址信号，聚焦误差信号和跟踪误差信号。在再现时，激光二极管阵列20发射再现光束，使得光传感器装置提供再现信号。

10. 发明授权

US06538968B1 Information recording/reproducing apparatus 失效
标题翻译：信息记录/重放装置
公开(公告)号：US06538968B1
公开(公告)日：2003-03-25
申请号：US09284080
申请日：1999-04-07
申请人： Atsushi Yamaguchi , Kenji Torazawa , Satoshi Sumi , Kenji Tanase , Yoshihisa Suzuki
发明人： Atsushi Yamaguchi , Kenji Torazawa , Satoshi Sumi , Kenji Tanase , Yoshihisa Suzuki
IPC分类号： G11B708
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/125 , G11B7/1365 , G11B11/10595
摘要： The present invention provides a recording medium and an information recording/reproducing apparatus which permit recording and/or reproducing by a laser beam of optimized power for each recording medium. The recording medium is provided with a calibration region in addition to an information recording region. The calibration region has wobbles formed such that the amplitude of the waveform of a reproduced signal therefrom can change. Prior to recording to the information recording region, a signal is recorded in the calibration region by changing the laser power, and the recorded signal is immediately reproduced. The waveform of the reproduced signal is evaluated to determine optimum laser power for recording. At the time of reproducing, a signal previously recorded in the calibration region is reproduced while changing the laser power, and laser power optimum for reproducing is determined.
摘要翻译：本发明提供一种记录介质和信息记录/再现装置，其允许通过每个记录介质的优化功率的激光束进行记录和/或再现。记录介质除了信息记录区域之外还设置有校准区域。校准区域具有形成的摆动，使得其再现信号的波形的幅度可以改变。在记录到信息记录区之前，通过改变激光功率将信号记录在校准区域中，并立即再现所记录的信号。评估再现信号的波形以确定用于记录的最佳激光功率。在再现时，在改变激光功率的同时再现先前记录在校准区域中的信号，并且确定用于再现的最佳激光功率。

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