公开(公告)号：US06324139B1

公开(公告)日：2001-11-27

申请号：US09220831

申请日：1998-12-24

申请人： Kazuhiko Nakane

发明人： Kazuhiko Nakane

IPC分类号： G11B509

CPC分类号： B82Y10/00 ,  G11B7/005 ,  G11B7/128 ,  G11B7/1381 ,  G11B7/139 ,  G11B11/10532 ,  G11B2007/13727

摘要： A method of retrieving recorded information from an optical recording medium and writing information in an optical recording medium. The method is applicable to optical recording media having different track pitches. Before reading information or recording information, a laser beam is employed to read from a control track area of an optical recording medium track pitch information including the track pitch of the medium. Then, based upon the track pitch read, the shape of the spot of the laser beam incident on the optical recording medium is adjusted so that it conforms to the track pitch determined by reading the information from the control track area.

摘要翻译： 一种从光学记录介质中检索记录的信息并在光学记录介质中写入信息的方法。 该方法适用于具有不同轨道间距的光记录介质。 在读取信息或记录信息之前，使用激光束从光记录介质的控制轨道区域读取包括介质的轨道间距的轨道间距信息。 然后，基于轨道间距读出，调整入射在光记录介质上的激光束的光点的形状，使其符合通过从控制轨迹区域读取信息而确定的轨道间距。

公开(公告)号：US5974011A

公开(公告)日：1999-10-26

申请号：US395922

申请日：1995-02-28

申请人： Kazuhiko Nakane

发明人： Kazuhiko Nakane

IPC分类号： G11B7/005 ,  G11B7/125 ,  G11B7/135 ,  G11B11/105 ,  G11B5/09 ,  G11B7/00

CPC分类号： B82Y10/00 ,  G11B7/128 ,  G11B7/1381 ,  G11B7/139 ,  G11B11/10532 ,  G11B2007/13727 ,  G11B7/005

摘要： A light beam condensing apparatus is provided to introduce a condensing spot of a laser beam onto an optical recording medium such as optical disks, and a method of driving the optical recording medium by applying the apparatus is disclosed.There is provided modulation means 111 provided between a collimate lens 102 and an objective lens 105, for externally controlling and varying an amplitude or a phase of a collimate beam 104. The modulation means 111 is mechanically or electrically driven. Further, the modulation means 111 can be switched according to an operation mode of a drive unit or a kind of a recording medium 106 so as to provide a desired condensing spot shape.

摘要翻译： 提供一种光束聚光装置，用于将激光束的聚光点引入诸如光盘的光学记录介质上，并且公开了通过应用该装置来驱动光学记录介质的方法。 提供了设置在准直透镜102和物镜105之间的调制装置111，用于外部控制和改变准直光束104的幅度或相位。调制装置111被机械或电驱动。 此外，可以根据驱动单元的操作模式或记录介质106的种类来切换调制装置111，以便提供所需的聚光点形状。

公开(公告)号：US5923640A

公开(公告)日：1999-07-13

申请号：US883445

申请日：1997-06-26

申请人： Yoshinari Takemura ,  Shunji Ohara ,  Takashi Ishida ,  Isao Satoh ,  Kazuhiko Nakane ,  Masato Nagasawa ,  Yoshinobu Ishida

发明人： Yoshinari Takemura ,  Shunji Ohara ,  Takashi Ishida ,  Isao Satoh ,  Kazuhiko Nakane ,  Masato Nagasawa ,  Yoshinobu Ishida

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/007 ,  G11B7/30 ,  G11B7/24

CPC分类号： G11B7/00745 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00736 ,  G11B7/0079

摘要： An optical disc having both rewritable area and read-only area is disclosed. The rewritable area has a single spiral pattern of start track land at a leading edge, and a single spiral pattern of end track land at a trailing edge, whereby portions of the physical address area PID deviated approximately Pa/2 from the track of the rewritable area are being intruded into the start track land and the end track land.

公开(公告)号：US5644420A

公开(公告)日：1997-07-01

申请号：US683112

申请日：1996-07-16

申请人： Kazuhiko Nakane

发明人： Kazuhiko Nakane

IPC分类号： G11B7/005 ,  G11B7/125 ,  G11B7/135 ,  G11B11/105 ,  G02F1/07

CPC分类号： B82Y10/00 ,  G11B7/128 ,  G11B7/1381 ,  G11B7/139 ,  G11B11/10532 ,  G11B2007/13727 ,  G11B7/005

摘要： A light beam condensing apparatus is provided for introducing a condensing spot of a laser beam onto an optical recording medium such as optical disks, and a method of driving the optical recording medium by applying the apparatus. The apparatus can include a modulator disposed between a collimate lens and an objective lens. The modulator can be mechanically or electrically driven to control and vary the amplitude or phase of a collimate beam. Further, the modulator can be switched according to an operational mode of a drive unit or a type of a recording medium so as to provide a desired condensing spot shape.

摘要翻译： 提供了一种光束聚光装置，用于将激光束的聚光点引入诸如光盘的光记录介质上，以及通过应用该装置来驱动光记录介质的方法。 该装置可以包括设置在准直透镜和物镜之间的调制器。 调制器可以被机械或电驱动以控制和改变准直光束的幅度或相位。 此外，可以根据驱动单元的操作模式或记录介质的类型来切换调制器，以便提供期望的聚光点形状。

公开(公告)号：US5532987A

公开(公告)日：1996-07-02

申请号：US427811

申请日：1995-04-26

申请人： Teruo Fujita ,  Morihiro Karaki ,  Mitsuru Irie ,  Kazuhiko Nakane

发明人： Teruo Fujita ,  Morihiro Karaki ,  Mitsuru Irie ,  Kazuhiko Nakane

IPC分类号： G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B7/22

CPC分类号： G11B7/133 ,  G11B7/00718 ,  G11B7/0908 ,  G11B7/0916 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/094 ,  G11B7/0948 ,  G11B7/0956 ,  G11B7/1353 ,  G11B7/1381 ,  G11B7/14 ,  G11B7/22 ,  G11B7/0909

摘要： A focus error detecting device includes a reflected beam obscurer and a two-division photodetector. The observer obscures a part of the reflected beam. The two-division photodetector includes first and second light receiving sections separated from each other by a division band region which receive the reflected light beam not obscured by the obscurer. A focus error signal is produced based on the output of each light receiving section. Each light receiving section has an array of tapered projections along its edge in the division band region. Alteratively, the light receiving sections have a main part with an edge coincident with an edge of the division band region, and groups of light receiving stripes extending in a direction parallel with the edges of the main part.

摘要翻译： 聚焦误差检测装置包括反射光束遮蔽物和二分光电检测器。 观察者遮挡了反射光束的一部分。 二分光电检测器包括通过接收不被遮挡物遮挡的反射光束的分割带区彼此分离的第一和第二光接收部分。 基于每个光接收部分的输出产生聚焦误差信号。 每个光接收部分沿其分割带区域的边缘具有锥形突起的阵列。 换句话说，光接收部具有与分带区域的边缘重合的边缘的主要部分和沿与主要部分的边缘平行的方向延伸的光接收条纹组。

公开(公告)号：US5309415A

公开(公告)日：1994-05-03

申请号：US734963

申请日：1991-07-24

申请人： Koichi Takeuchi ,  Osamu Ito ,  Kyosuke Yoshimoto ,  Kunimaro Tanaka ,  Isao Watanabe ,  Kazuhiko Tsutsumi ,  Ryuichirou Arai ,  Yoshihiro Kiyose ,  Kazuhiko Nakane ,  Teruo Furukawa ,  Masayoshi Shimamoto ,  Yoshiyuki Nakai

发明人： Koichi Takeuchi ,  Osamu Ito ,  Kyosuke Yoshimoto ,  Kunimaro Tanaka ,  Isao Watanabe ,  Kazuhiko Tsutsumi ,  Ryuichirou Arai ,  Yoshihiro Kiyose ,  Kazuhiko Nakane ,  Teruo Furukawa ,  Masayoshi Shimamoto ,  Yoshiyuki Nakai

IPC分类号： G11B7/09 ,  G11B11/105 ,  G11B13/04 ,  G11B11/10 ,  G11B11/12

CPC分类号： G11B11/10517 ,  G11B11/10586 ,  G11B7/0901

摘要： Methods and apparatuses are disclosed for improving accuracy of recording and reproducing information onto and from a magneto-optic recording information medium. In the first method, a width of a mark formed by a relatively low intensity light beam between two kinds of light beam intensities used for recording information is made larger than a sum of a track land width and the maximum track offset of the light beam, thereby the mark formed by the relatively low intensity light beam covers the track land portion in its full width. In the first apparatus, a reflected light beam from the magneto-optic recording information medium is split into a reflected beam for information reproducing and a reflected beam for tracking and focusing servos at the reproducing, thereby the apparatus can remove part being affected by the track groove portion from the reflected light beam for information reproducing. In the second method and apparatus, an intensity ratio of the two kinds of intensities of light beams used for information recording is controlled in such a manner that a mark width formed by the relative low intensity light beam is wider than a mark width formed by the relative high intensity light beam.

摘要翻译： 公开了用于提高在磁光记录信息介质上记录和再现信息的精度的方法和装置。 在第一种方法中，使用用于记录信息的两种光束强度之间由相对低强度的光束形成的标记的宽度大于光束的轨迹平面宽度和最大光轨偏移之和， 由此由相对低强度的光束形成的标记以其宽度覆盖轨迹陆部。 在第一装置中，来自磁光记录信息介质的反射光束被分成用于信息再现的反射光束和用于在再现时跟踪和聚焦伺服的反射光束，从而该装置可以去除受轨迹影响的部分 沟槽部分，用于信息再现。 在第二方法和装置中，用于信息记录的光束的两种强度的强度比被控制为使得由相对低强度光束形成的标记宽度比由 相对高强度光束。

公开(公告)号：US5272684A

公开(公告)日：1993-12-21

申请号：US558673

申请日：1990-07-26

申请人： Koichi Takeuchi ,  Osamu Ito ,  Kyosuke Yoshimoto ,  Kunimaro Tanaka ,  Isao Watanabe ,  Kazuhiko Tsutsumi ,  Ryuichirou Aria ,  Yoshihiro Kiyose ,  Kazuhiko Nakane ,  Teruo Furukawa ,  Masayoshi Shimamoto ,  Yoshiyuki Nakaki

发明人： Koichi Takeuchi ,  Osamu Ito ,  Kyosuke Yoshimoto ,  Kunimaro Tanaka ,  Isao Watanabe ,  Kazuhiko Tsutsumi ,  Ryuichirou Aria ,  Yoshihiro Kiyose ,  Kazuhiko Nakane ,  Teruo Furukawa ,  Masayoshi Shimamoto ,  Yoshiyuki Nakaki

IPC分类号： G11B7/09 ,  G11B11/105 ,  G11B11/00 ,  G11B3/70

CPC分类号： G11B11/10517 ,  G11B11/10586 ,  G11B7/0901

摘要： Methods and apparatuses are disclosed for improving accuracy of recording and reproducing information onto and from a magneto-optic recording information medium. In the first method, a width of a mark formed by a relatively low intensity light beam between two kinds of light beam intensities used for recording information is made larger than a sum of a track land width and the maximum track offset of the light beam, thereby the mark formed by the relatively low intensity light beam covers the track land portion in its full width. In the first apparatus, a reflected light beam from the magneto-optic recording information medium is split into a reflected beam for information reproducing and a reflected beam for tracking and focusing servos at the reproducing, thereby the apparatus can remove part being affected by the track groove portion from the reflected light beam for information reproducing. In the second method and apparatus, an intensity ratio of the two kinds of intensities of light beams used for information recording is controlled in such a manner that a mark width formed by the relative low intensity light beam is wider than a mark width formed by the relative high intensity light beam.

摘要翻译： 公开了用于提高在磁光记录信息介质上记录和再现信息的精度的方法和装置。 在第一种方法中，使用用于记录信息的两种光束强度之间由相对低强度的光束形成的标记的宽度大于光束的轨迹平面宽度和最大光轨偏移之和， 由此由相对低强度的光束形成的标记以其宽度覆盖轨迹陆部。 在第一装置中，来自磁光记录信息介质的反射光束被分割成用于信息再现的反射光束和用于在再现时跟踪和聚焦伺服的反射光束，从而该装置可以去除受轨迹影响的部分 沟槽部分，用于信息再现。 在第二方法和装置中，用于信息记录的光束的两种强度的强度比被控制为使得由相对低强度光束形成的标记宽度比由 相对高强度光束。

公开(公告)号：US5264911A

公开(公告)日：1993-11-23

申请号：US810209

申请日：1991-12-19

申请人： Kazuhiko Nakane ,  Masayoshi Shimamoto ,  Yoshihiro Kiyose ,  Keiji Nakatsu ,  Isao Watanabe ,  Masami Horita ,  Kenichi Sato ,  Kenji Shimozawa ,  Hiroshi Konuma ,  Masaharu Yoshimura

发明人： Kazuhiko Nakane ,  Masayoshi Shimamoto ,  Yoshihiro Kiyose ,  Keiji Nakatsu ,  Isao Watanabe ,  Masami Horita ,  Kenichi Sato ,  Kenji Shimozawa ,  Hiroshi Konuma ,  Masaharu Yoshimura

IPC分类号： G11B33/10 ,  G01J1/42 ,  G11B3/90

CPC分类号： G11B33/10

摘要： A laser power measuring jig is adapted for use in measuring a laser power of a laser beam which is emitted from an optical head of an optical disk unit which records and/or reproduces information on and/or from a medium. The laser power measuring jig supplies power information related to the laser power of the laser beam to a power meter which measures the laser power. The laser power measuring jig includes a main jig body which has a size and a shape which are approximately the same as those of the medium, and this main jig body is loaded into the optical disk unit. The laser power measuring jig also includes a mechanism for outputting the power information outside the optical disk unit and supplying the laser power information to the power meter when the main jig body is loaded into the optical disk unit.

摘要翻译： 激光功率测量夹具适用于测量从光盘单元的光头发射的激光束的激光功率，其在介质上记录和/或再现信息。 激光功率测量夹具将与激光束的激光功率有关的功率信息提供给测量激光功率的功率计。 激光功率测量夹具包括具有与介质大致相同的尺寸和形状的主夹具本体，并且该主夹具本体被装载到光盘单元中。 激光功率测量夹具还包括一个机构，用于当主夹具体被装载到光盘单元中时，输出光盘单元外部的功率信息并将激光功率信息提供给功率计。

公开(公告)号：US08526281B2

公开(公告)日：2013-09-03

申请号：US12677724

申请日：2008-04-21

申请人： Kazuhiko Nakane

发明人： Kazuhiko Nakane

IPC分类号： G11B11/00

CPC分类号： H04N5/913 ,  G06F21/10 ,  G11B20/00086 ,  G11B20/00449 ,  G11B20/00492 ,  G11B20/00869 ,  G11B20/1217 ,  G11B2020/1288 ,  G11B2220/215 ,  G11B2220/2562 ,  H04N5/765 ,  H04N5/85 ,  H04N2005/91364

摘要： Content information (CI) is recorded, and then control information including an encryption key is recorded. The area in which the content information (CI) is written is shifted with respect to the user area (UIA) in a playback-only disc. The control information (SI) is written with an identical shift. As a result of the shift, content information (CI) or dummy data (DD) is written in the area (SIA) in which control information is recorded in a playback-only disc. Information indicating the value of the shift is selected randomly and deleted when the disc is removed from the recording apparatus. When encrypted content is downloaded and recorded on a recordable optical disc, the complete content can be recorded on the disc correctly just once.

摘要翻译： 记录内容信息（CI），然后记录包括加密密钥的控制信息。 写入内容信息（CI）的区域相对于仅在回放盘中的用户区域（UIA）移动。 控制信息（SI）以相同的移位写入。 作为移位的结果，将内容信息（CI）或虚拟数据（DD）写入其中控制信息被记录在只播放盘中的区域（SIA）中。 随机选择指示移位值的信息，并且当从记录装置中取出盘时被删除。 当加密的内容被下载并记录在可记录光盘上时，完整的内容可以被正确记录在光盘上一次。

公开(公告)号：US08210948B2

公开(公告)日：2012-07-03

申请号：US11661942

申请日：2005-07-15

申请人： Masaaki Shimada ,  Tomoaki Ryu ,  Kazuhiko Nakane

发明人： Masaaki Shimada ,  Tomoaki Ryu ,  Kazuhiko Nakane

IPC分类号： A63F13/00

CPC分类号： G11B27/34 ,  G11B19/025 ,  G11B2220/2562 ,  H04N5/783 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205 ,  H04N9/8227 ,  H04N21/4126 ,  H04N21/47 ,  H04N21/4856

摘要： A portable recording medium (100) stores video contents and icon information relating to an icon picture associated with the video contents and indicative of an operation mode corresponding to user operation of the recording medium reproducing apparatus (1). The recording medium reproducing apparatus (1) includes an image display plane (8) which is a frame memory area used for displaying video data of the video contents stored in the portable recording medium (100); a memory (15, 16) which stores the icon information stored in the portable recording medium (100); an OSD plane (18) which is a frame memory area used for displaying the icon picture on the basis of the icon information stored in the memory (15, 16); and a synthesizing device (10) which synthesizes the data held in the video display plane (8) and the data held in the information display plane (18), thereby outputting a superimposed video signal.

摘要翻译： 便携式记录介质（100）存储与与视频内容相关联的图标图像相关的视频内容和图标信息，并且指示对应于记录介质再现装置（1）的用户操作的操作模式。 记录介质再现装置（1）包括作为用于显示存储在便携式记录介质（100）中的视频内容的视频数据的帧存储区域的图像显示平面（8）。 存储器（15,16），其存储存储在便携式记录介质（100）中的图标信息; OSD平面（18），其是用于基于存储在存储器（15,16）中的图标信息显示图标图像的帧存储区域; 以及合成装置（10），其将保持在视频显示平面（8）中的数据和保存在信息显示平面（18）中的数据合成，从而输出叠加的视频信号。