公开(公告)号：US20060239162A1

公开(公告)日：2006-10-26

申请号：US11365029

申请日：2006-02-28

申请人： Tetsuya Fushimi ,  Masaaki Kurebayashi

发明人： Tetsuya Fushimi ,  Masaaki Kurebayashi

IPC分类号： G11B15/04

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B7/1267 ,  G11B2007/0013

摘要： In an optical disc apparatus, whether an unrecorded recording layer without information recorded thereon is included in the multiple recording layers of the optical disc mounted inside the apparatus is judged. then when the unrecorded recording layer is judged to be present, a signal for focus offset adjustment is recorded in a non-user data recording area of the unrecorded recording layer, and reproduction of the recorded focus offset adjusting signal is followed by its quality evaluation, which is further followed by calculation and setup of an appropriate focus offset value based on evaluation results.

摘要翻译： 在光盘装置中，判断装在内部的光盘的多个记录层中是否包含没有记录信息的未记录的记录层。 那么当未记录的记录层被判定为存在时，用于聚焦偏移调整的信号被记录在未记录的记录层的非用户数据记录区中，并且记录的聚焦偏移调整信号的再现之后是其质量评估， 此后进一步根据评估结果计算和设置适当的聚焦偏移值。

公开(公告)号：US20050088940A1

公开(公告)日：2005-04-28

申请号：US10642461

申请日：2003-08-15

申请人： Tsuyoshi Toda ,  Hiroyuki Minemura ,  Masaaki Kurebayashi

发明人： Tsuyoshi Toda ,  Hiroyuki Minemura ,  Masaaki Kurebayashi

IPC分类号： G11B20/10 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/125

CPC分类号： G11B7/1267

摘要： It is an object of the present invention to provide an information recording and reproducing technique capable of improving the reliability of information recorded on a recording medium. A recording condition comprising amplitude information and the ratio of the amplitude to the recording power is previously recorded on the recording medium. Using this previously recorded information, information is recorded and then immediately reproduced to calculate the optimum recording power from the amplitude information obtained from the reproduced signal. By adapting the recording condition accordingly, it is possible to secure reliability of information in performance.

摘要翻译： 本发明的目的是提供一种能够提高记录在记录介质上的信息的可靠性的信息记录和再现技术。 包括幅度信息和幅度与记录功率的比率的记录条件预先记录在记录介质上。 使用该先前记录的信息，记录信息，然后立即再现，以根据从再现信号获得的振幅信息计算最佳记录功率。 通过适应相应的记录条件，可以保证性能中信息的可靠性。

公开(公告)号：US06674702B2

公开(公告)日：2004-01-06

申请号：US10270448

申请日：2002-10-15

申请人： Akihiro Asada ,  Hideo Ohnuki ,  Masaaki Kurebayashi ,  Yasuhito Tanaka ,  Toshimitsu Kaku ,  Takashi Hoshino ,  Hidehiko Kando

发明人： Akihiro Asada ,  Hideo Ohnuki ,  Masaaki Kurebayashi ,  Yasuhito Tanaka ,  Toshimitsu Kaku ,  Takashi Hoshino ,  Hidehiko Kando

IPC分类号： G11B7125

CPC分类号： G11B7/126 ,  G11B7/0062 ,  G11B2007/0006

摘要： A laser drive circuit includes a first current supply unit which supplies a first drive current to a first laser diode based on a drive waveform signal generated by a drive waveform generating unit, a second current supply unit which supplies a second drive current to a second laser diode based on the drive waveform signal generated by the drive waveform generating unit, and a switching unit which selectively supplies the drive waveform signal generated by the drive waveform generating unit to one of the first current supply unit and the second current supply unit. The drive waveform generating unit may be part of the laser drive circuit, or may be separate from the laser drive circuit, and may include a drive waveform information storage unit which stores a recording strategy according to a type of disk.

摘要翻译： 激光驱动电路包括：第一电流供应单元，其基于由驱动波形发生单元产生的驱动波形信号向第一激光二极管提供第一驱动电流;第二电流供应单元，其将第二驱动电流提供给第二激光器 基于由驱动波形生成单元生成的驱动波形信号的二极管，以及切换单元，其选择性地将驱动波形生成单元生成的驱动波形信号提供给第一电流供给单元和第二电流供给单元中的一个。 驱动波形生成单元可以是激光驱动电路的一部分，也可以与激光驱动电路分离，并且可以包括驱动波形信息存储单元，其存储根据盘的类型的记录策略。

公开(公告)号：US06552987B1

公开(公告)日：2003-04-22

申请号：US09463007

申请日：2000-01-19

申请人： Akihiro Asada ,  Toshimitsu Kaku ,  Takashi Hoshino ,  Masaaki Kurebayashi

发明人： Akihiro Asada ,  Toshimitsu Kaku ,  Takashi Hoshino ,  Masaaki Kurebayashi

IPC分类号： G11B70045

CPC分类号： G11B7/0045 ,  G11B7/00456 ,  G11B7/005 ,  G11B7/00745 ,  G11B20/12

摘要： According to the present invention, in an optical disk apparatus constructed to supply signals for controlling a semiconductor laser drive circuit provided to an optical pickup from a signal processing circuit through a flexible cable, the semiconductor laser drive circuit is so constructed as to generate a drive current signal for the semiconductor laser on the basis of a binary signal and a clock signal which are supplied from the signal processing circuit through the flexible cable and the signal processing circuit is so constructed as to supply the clock signal during recording of data and stop the supply of the block signal during reproduction of data.

摘要翻译： 根据本发明，在通过柔性电缆从信号处理电路提供用于控制提供给光学拾取器的半导体激光器驱动电路的信号的光盘装置中，半导体激光器驱动电路被构造成产生驱动 基于通过柔性电缆和信号处理电路从信号处理电路提供的二进制信号和时钟信号的半导体激光器的电流信号被构造成在记录数据期间提供时钟信号并停止 在再现数据期间提供块信号。

公开(公告)号：US20120047372A1

公开(公告)日：2012-02-23

申请号：US13180619

申请日：2011-07-12

申请人： Shinji FUJITA ,  Osamu Kawamae ,  Masaaki Kurebayashi ,  Manabu Katsuki

发明人： Shinji FUJITA ,  Osamu Kawamae ,  Masaaki Kurebayashi ,  Manabu Katsuki

IPC分类号： G06F12/14

CPC分类号： G06F21/10 ,  G06F21/72 ,  G06F21/80 ,  G06F2221/2129

摘要： A storage system having a plurality of optical disc devices allows other optical disc devices inside the storage system to reproduce the optical disc recorded by a certain optical disc device but inhibits optical disc devices outside the storage system to reproduce the optical disc. A device key as a base for generating an encryption key is common to the plurality of optical disc devices. In the optical disc devices, a guest key other than the device key can be used temporarily to generate the encryption key. An authentication list containing a reproduction condition is recorded with the key information to the optical disc.

摘要翻译： 具有多个光盘装置的存储系统允许存储系统内的其他光盘装置再现由某个光盘装置记录的光盘，但是禁止存储系统外的光盘装置再现光盘。 作为用于生成加密密钥的基础的设备密钥对于多个光盘设备是公共的。 在光盘装置中，可以临时使用除设备密钥以外的客人密钥来生成加密密钥。 将包含再现条件的认证列表与密钥信息一起记录到光盘。

公开(公告)号：US08000194B2

公开(公告)日：2011-08-16

申请号：US12690789

申请日：2010-01-20

申请人： Tetsuya Fushimi ,  Masaaki Kurebayashi

发明人： Tetsuya Fushimi ,  Masaaki Kurebayashi

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B7/1267 ,  G11B2007/0013

摘要： In an optical disc apparatus, whether an unrecorded recording layer without information recorded thereon is included in the multiple recording layers of the optical disc mounted inside the apparatus is judged. then when the unrecorded recording layer is judged to be present, a signal for focus offset adjustment is recorded in a non-user data recording area of the unrecorded recording layer, and reproduction of the recorded focus offset adjusting signal is followed by its quality evaluation, which is further followed by calculation and setup of an appropriate focus offset value based on evaluation results.

摘要翻译： 在光盘装置中，判断装在内部的光盘的多个记录层中是否包含没有记录信息的未记录的记录层。 那么当未记录的记录层被判定为存在时，用于聚焦偏移调整的信号被记录在未记录的记录层的非用户数据记录区中，并且记录的聚焦偏移调整信号的再现之后是其质量评估， 此后进一步根据评估结果计算和设置适当的聚焦偏移值。

公开(公告)号：US07298681B2

公开(公告)日：2007-11-20

申请号：US11359423

申请日：2006-02-23

申请人： Akihiro Asada ,  Masaaki Kurebayashi

发明人： Akihiro Asada ,  Masaaki Kurebayashi

IPC分类号： G11B7/125

CPC分类号： G11B7/0062 ,  G11B7/00456 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/1217 ,  G11B2007/0006 ,  G11B2020/1298

摘要： An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling the first high-frequency superimposition unit to stop the superimposition of the high-frequency component for a predetermined duration prior to a timing at which to switch from the space forming semiconductor laser drive current to the mark forming semiconductor laser drive current, eliminating positional variations on the disk of the mark leading and trailing edges due to the high frequency superimposition.

摘要翻译： 光盘驱动器包括用于提供标记形成半导体激光器驱动电流的驱动电流产生单元和形成空间的半导体激光器驱动电流; 第一高频叠加单元，用于在形成空间的半导体激光器驱动电流上叠加高频分量; 以及高频叠加控制单元，用于控制第一高频叠加单元，以在从形成空间的半导体激光器驱动电流切换到标记形成的定时之前停止预定持续时间的高频分量的叠加 半导体激光器驱动电流，消除由于高频叠加引起的标记前缘和后沿的盘上的位置变化。

公开(公告)号：US20070189747A1

公开(公告)日：2007-08-16

申请号：US11563095

申请日：2006-11-24

申请人： Takanobu Ujisato ,  Hideki Hama ,  Hiromitsu Baba ,  Masaaki Kurebayashi

发明人： Takanobu Ujisato ,  Hideki Hama ,  Hiromitsu Baba ,  Masaaki Kurebayashi

IPC分类号： G03B17/00

CPC分类号： G03B37/04

摘要： A camera system includes a camera apparatus for shooting an object to output an image signal and a camera control apparatus for controlling the camera apparatus such that the camera apparatus shoots a plurality of images constructing a panorama image in a predetermined order while changing zoom magnifications based on previously-determined setting and making a panorama image by joining a plurality of images with different zoom magnifications shot by the camera apparatus together.

摘要翻译： 照相机系统包括用于拍摄物体以输出图像信号的相机装置和用于控制相机装置的照相机控制装置，使得相机装置以预定顺序拍摄构成全景图像的多个图像，同时基于 通过将由相机装置拍摄的不同变焦倍率的多个图像连接在一起来进行预先确定的设置并制作全景图像。

公开(公告)号：US20060146679A1

公开(公告)日：2006-07-06

申请号：US11359423

申请日：2006-02-23

申请人： Akihiro Asada ,  Masaaki Kurebayashi

发明人： Akihiro Asada ,  Masaaki Kurebayashi

IPC分类号： G11B7/0045 ,  G11B20/10 ,  G11B27/36 ,  G11B5/09 ,  H04N5/76

CPC分类号： G11B7/0062 ,  G11B7/00456 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/1217 ,  G11B2007/0006 ,  G11B2020/1298

摘要： An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling the first high-frequency superimposition unit to stop the superimposition of the high-frequency component for a predetermined duration prior to a timing at which to switch from the space forming semiconductor laser drive current to the mark forming semiconductor laser drive current, eliminating positional variations on the disk of the mark leading and trailing edges due to the high frequency superimposition.

公开(公告)号：US07038989B2

公开(公告)日：2006-05-02

申请号：US10281274

申请日：2002-10-28

申请人： Akihiro Asada ,  Masaaki Kurebayashi

发明人： Akihiro Asada ,  Masaaki Kurebayashi

IPC分类号： G11B7/045

CPC分类号： G11B7/0062 ,  G11B7/00456 ,  G11B7/126 ,  G11B7/1263 ,  G11B20/1217 ,  G11B2007/0006 ,  G11B2020/1298

摘要： An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling the first high-frequency superimposition unit to stop the superimposition of the high-frequency component for a predetermined duration prior to a timing at which to switch from the space forming semiconductor laser drive current to the mark forming semiconductor laser drive current, eliminating positional variations on the disk of the mark leading and trailing edges due to the high frequency superimposition.