公开(公告)号：US07764592B2

公开(公告)日：2010-07-27

申请号：US11068752

申请日：2005-03-02

申请人： Tetsuya Akiyama ,  Naoyasu Miyagawa ,  Shinya Abe ,  Takashi Ishida

发明人： Tetsuya Akiyama ,  Naoyasu Miyagawa ,  Shinya Abe ,  Takashi Ishida

IPC分类号： G11B7/24

CPC分类号： G11B7/00736 ,  G11B7/0053

摘要： An optical recording medium that allows information to be recorded and played back properly, even when a type of recording medium in which information is recorded to grooves is used along with a type of recording medium in which information is recorded to lands, as well as a method for recording and playback with this medium. Recording track information is recorded in advance, indicating whether information is to be recorded in the grooves or the lands, whichever of the grooves and lands is best suited to the recording of information is selected on the basis of the recording track information that is read out, and the recording or playback of information is performed.

摘要翻译： 即使将信息记录到凹槽中的记录介质的类型与将信息记录到地面的记录介质一起使用，也能够正确地记录和重放信息的光记录介质，以及 使用该介质进行录制和播放的方法。 基于读出的记录轨迹信息，选择记录轨迹信息，指示信息是否要记录在凹槽中或凹槽中，无论哪个凹槽和平台最适合于记录信息。 ，并且执行信息的记录或重放。

公开(公告)号：US07123570B2

公开(公告)日：2006-10-17

申请号：US11052306

申请日：2005-02-07

申请人： Tetsuya Akiyama ,  Nobuo Akahira ,  Kenichi Nishiuchi

发明人： Tetsuya Akiyama ,  Nobuo Akahira ,  Kenichi Nishiuchi

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/0908 ,  G11B7/127 ,  G11B7/1275 ,  G11B7/1369 ,  G11B7/13927 ,  G11B7/14 ,  G11B2007/0013

摘要： A plurality of optical heads each of which comprises an independent light source and optical system are provided on the same side with respect to a recording medium having a plurality of recording layers. Alternatively, with respect to at least one light source in an optical head having a single objective lens and a plurality of light sources, an optical path correction system is provided on an optical path unique to the light source, and while light emitted from one light source is focused on a specific recording layer by shifting of the objective lens, light irradiated from another light source is focused on another recording layer by the optical path correction system. Thus, information can be reproduced from or recorded in a plurality of recording layers simultaneously and an error in focusing of light onto the plurality of recording layers can be suppressed.

摘要翻译： 相对于具有多个记录层的记录介质，每个光头都包括独立的光源和光学系统。 或者，对于具有单个物镜和多个光源的光学头中的至少一个光源，光路校正系统设置在光源独有的光路上，并且在从一个光发射的光 源通过物镜的偏移聚焦在特定记录层上，由另一光源照射的光被光路校正系统聚焦在另一记录层上。 因此，可以同时从多个记录层再现信息或记录信息，并且可以抑制将光聚焦到多个记录层上的错误。

公开(公告)号：US06975571B1

公开(公告)日：2005-12-13

申请号：US09936968

申请日：2000-03-15

申请人： Kenji Narumi ,  Tetsuya Akiyama ,  Kenichi Nishiuchi ,  Shigeaki Furukawa

发明人： Kenji Narumi ,  Tetsuya Akiyama ,  Kenichi Nishiuchi ,  Shigeaki Furukawa

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B11/105 ,  G11B19/04 ,  G11B20/10 ,  G11B20/18 ,  G11B27/36 ,  G11B5/09

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B11/1053 ,  G11B11/10595 ,  G11B19/04 ,  G11B20/10 ,  G11B20/1816 ,  G11B20/182 ,  G11B27/36 ,  G11B2220/216

摘要： A method by which, in an optical disk recording and reproducing device, the time required for a test recording performed prior to an actual information recording can be reduced according to characteristics of an optical disk. A random pattern signal is transmitted from a random pattern signal generating circuit 3 and recorded on a test track on an optical disk 1, and a bit error rate of a reproduction signal is measured. Only when a value of the bit error rate is not less than a fixed value, test pattern signals are transmitted from a test pattern signal generating circuit 4 and recorded. An edge timing of a reproduction signal is measured by an edge timing detecting circuit 13. Based on a result of the measurement, edge positions of a front-end pulse and a back-end pulse are corrected.

摘要翻译： 在光盘记录和再现装置中，可以根据光盘的特性减少在实际信息记录之前执行的测试记录所需的时间的方法。 从随机模式信号发生电路3发送随机模式信号并记录在光盘1上的测试轨道上，并测量再现信号的误码率。 只有当误码率的值不小于固定值时，才从测试模式信号发生电路4发送测试模式信号并进行记录。 边缘定时检测电路13测量再现信号的边缘定时。 基于测量的结果，校正前端脉冲和后端脉冲的边缘位置。

公开(公告)号：US06487147B2

公开(公告)日：2002-11-26

申请号：US10056129

申请日：2002-01-25

申请人： Naoyasu Miyagawa ,  Yasuhiro Gotoh ,  Tetsuya Akiyama

发明人： Naoyasu Miyagawa ,  Yasuhiro Gotoh ,  Tetsuya Akiyama

IPC分类号： G11B7095

CPC分类号： G11B7/007 ,  B60H1/00264 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0904 ,  G11B7/0938 ,  G11B7/24 ,  G11B7/24085 ,  G11B11/10586

摘要： An optical information recording medium according to the present invention includes at least one groove track and at least one land track allowing information to be recorded on or reproduced from the groove track and the land track, the groove track and the land track adjoining each other. The optical information recording medium further includes: an identification signal region including a pre-pit array, the pre-pit array indicating identification information concerning the groove track and the land track; and a servo control region disposed ahead of the identification signal region along the groove track and the land track, the servo control region including wobble pits positioned so as to shift to opposite sides of a center line of either the groove track or the land track.

公开(公告)号：US06411575B1

公开(公告)日：2002-06-25

申请号：US09349969

申请日：1999-07-09

申请人： Tetsuya Akiyama ,  Kenichi Nishiuchi ,  Shigeaki Furukawa ,  Kenji Narumi ,  Hiroyuki Yamaguchi

发明人： Tetsuya Akiyama ,  Kenichi Nishiuchi ,  Shigeaki Furukawa ,  Kenji Narumi ,  Hiroyuki Yamaguchi

IPC分类号： G11B70045

CPC分类号： G11B7/126 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/006 ,  G11B7/0062 ,  G11B7/007 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/0945 ,  G11B7/1267 ,  G11B19/04 ,  G11B19/12 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10481 ,  G11B27/36

摘要： An optical recording medium has a recording/reproduction conditions recording area for recording recording/reproduction conditions and recording/reproduction apparatus information identifying the recording/reproduction apparatus using the recording/reproduction conditions. When the optical recording medium is accessed in a recording/reproduction apparatus, the recording/reproduction conditions for the recording/reproduction apparatus are used. Therefore, recording or reproduction can be performed with use of optimum recording/reproduction apparatus information appropriate for the optical recording medium and for the recording/reproduction apparatus. When the optical recording medium is used for the first time, test recording is performed by using a test recording region provided in the optical recording medium, and the obtained recording/reproduction conditions are recorded.

摘要翻译： 光记录介质具有用于记录记录/再现条件的记录/再现条件记录区域和使用记录/再现条件识别记录/再现设备的记录/再现设备信息。 当在记录/再现设备中访问光学记录介质时，使用用于记录/再现设备的记录/再现条件。 因此，可以使用适合于光学记录介质和记录/再现装置的最佳记录/再现装置信息来执行记录或再现。 当第一次使用光记录介质时，通过使用设置在光学记录介质中的测试记录区域进行测试记录，并且记录所获得的记录/再现条件。

公开(公告)号：US5681632A

公开(公告)日：1997-10-28

申请号：US598749

申请日：1996-02-08

申请人： Hideki Kitaura ,  Tetsuya Akiyama ,  Takeo Ohta ,  Ken'ichi Nagata ,  Katsumi Kawahara ,  Noboru Yamada

发明人： Hideki Kitaura ,  Tetsuya Akiyama ,  Takeo Ohta ,  Ken'ichi Nagata ,  Katsumi Kawahara ,  Noboru Yamada

IPC分类号： G11B7/005 ,  G11B7/24 ,  G11B7/257 ,  B32B3/00

CPC分类号： G11B7/2578 ,  G11B7/2403 ,  G11B7/252 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B2007/25718 ,  G11B7/0052 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： On a substrate, a recording layer which reversibly transforms between two states with different optical properties--a crystalline phase and an amorphous phase--by the irradiation of a laser beam, a first and a second dielectric layer on the bottom and the top surfaces of the recording layer, and a third dielectric layer on one surface of the first or the second dielectric layers and on the opposite side with respect to the recording layer are successively laminated, thus preparing an optical information recording medium. The third dielectric layer has a smaller coefficient of thermal expansion than the first and the second dielectric layers, so that the thermal deformation of the first and the second dielectric layers is reduced and the mass transfer of the recording layer is controlled. As a result, the overwrite cycle characteristics of the optical information recording medium are excellent.

摘要翻译： 在基板上，通过激光束的照射，在不同的光学特性的两个状态（晶体相和非晶相）之间可逆地变换的记录层，在第一和第二介电层的底部和顶表面上 在第一或第二电介质层的一个表面上和相对于记录层的相对侧上的第三介电层依次层叠，从而制备光学信息记录介质。 第三电介质层的热膨胀系数比第一和第二电介质层的热膨胀系数小，因此第一和第二电介质层的热变形减小，记录层的传质受到控制。 结果，光信息记录介质的重写周期特性优异。

公开(公告)号：US20130215731A1

公开(公告)日：2013-08-22

申请号：US13881837

申请日：2012-03-13

申请人： Tomoyasu Takaoka ,  Atsushi Nakamura ,  Tetsuya Akiyama ,  Naoyasu Miyagawa

发明人： Tomoyasu Takaoka ,  Atsushi Nakamura ,  Tetsuya Akiyama ,  Naoyasu Miyagawa

IPC分类号： G11B7/0045

CPC分类号： G11B7/00456 ,  G11B7/0062 ,  G11B7/1263 ,  G11B7/1267 ,  G11B7/24038

摘要： When the power of the write pulse is taken as the peak power and the power of the bottom pulse is taken as the bottom power, the power setting device (114) sets the power of each pulse in the recording pulse train such that the peak power PwN of the Nth information layer which is closest to the light entry surface of the optical recording medium (11), the bottom power PbN of the Nth information layer, the peak power PwM of the Mth information layer (where M is an integer such that N>M≧1), and the bottom power PbM of the Mth information layer satisfy the following formula: PbN/PwN>PbM/PwM.

摘要翻译： 当将写入脉冲的功率作为峰值功率并且将底部脉冲的功率作为底部功率时，功率设定装置（114）将记录脉冲串中的每个脉冲的功率设置为使得峰值功率 最靠近光记录介质（11）的光入射表面的第N个信息层的PwN，第N个信息层的底部功率PbN，第M个信息层的峰值功率PwM（其中M是整数，使得 N> M> = 1），第M个信息层的底部功率PbM满足下式：PbN / PwN> PbM / PwM。

公开(公告)号：US07463575B2

公开(公告)日：2008-12-09

申请号：US11463977

申请日：2006-08-11

申请人： Tetsuya Akiyama ,  Naoyasu Miyagawa ,  Kenichi Nishiuchi ,  Takashi Nishihara

发明人： Tetsuya Akiyama ,  Naoyasu Miyagawa ,  Kenichi Nishiuchi ,  Takashi Nishihara

IPC分类号： G11B7/26

CPC分类号： G11B7/1369 ,  G11B7/1275 ,  G11B7/13925 ,  G11B7/14 ,  G11B7/24038 ,  G11B7/268 ,  G11B2007/0013

摘要： An optical information recording medium includes a plurality of recording layers, a reflectance of at least one of the plurality of the recording layers in a non-initialized state with respect to a light beam for initialization being smaller than a reflectance of the same in an initialized state with respect to the light beam for initialization. The recording layers are initialized by irradiating, among the plurality of recording layers, the recording layer positioned farther from a light beam irradiation side with the light beam prior to irradiating the recording layer positioned closer to the light beam irradiation side, so that the initialized recording layers have no initialization irregularities. In initialization, at a position at a same distance in a radial direction on the optical information recording medium, the recording layer positioned farther from a light beam irradiation side is irradiated with one light beam before the recording layer positioned closer to the light beam irradiation side is irradiated with another light beam so that the plurality of recording layers are initialized at the same time by a light beam projecting operation in which the light beams are focused at different positions. This ensures the initialization without irregularities within a short time.

摘要翻译： 光学信息记录介质包括多个记录层，相对于初始化用光束，非初始化状态的多个记录层中的至少一个记录层的反射率小于初始化的光束的反射率 相对于光束进行初始化的状态。 通过在照射位于更靠近光束照射侧的记录层之前，在多个记录层之间照射位于离光束照射侧更远离光束的记录层，以便初始记录 层没有初始化不规则。 在初始化中，在光学信息记录介质上沿径向相同距离的位置，在距离光束照射侧更靠近的记录层之前，用离开光束照射侧的记录层照射一个光束 用另一光束照射，使得多个记录层通过其中光束聚焦在不同位置的光束投影操作同时被初始化。 这确保了在短时间内没有不规则的初始化。

公开(公告)号：US07292514B2

公开(公告)日：2007-11-06

申请号：US10850366

申请日：2004-05-21

申请人： Tetsuya Akiyama ,  Naoyasu Miyagawa

发明人： Tetsuya Akiyama ,  Naoyasu Miyagawa

IPC分类号： G11B7/00

CPC分类号： G11B7/00454 ,  G11B7/0045 ,  G11B7/00456 ,  G11B7/0062 ,  G11B7/126

摘要： A multi pulse section 30 is generated in the mark forming portion corresponding to a mark 21 having a length nTw (n≧=2), where Tw represents a reference clock cycle. The multi pulse section 30 consists of pulses of the number (n−1) each having the power level a, and pulses of the number (n−2) each having the power level b (b

摘要翻译： 在与具有长度nTw（n> == 2）的标记21对应的标记形成部分中生成多脉冲部分30，其中Tw表示参考时钟周期。 多脉冲部分30由数量（n-1）的每个具有功率电平a的脉冲和数量（n-2）的每个具有功率电平b（b = Tw。 通过这种布置，可以将信息精确地记录在WORM型信息记录介质中并从WORM型信息记录介质再现。

公开(公告)号：US07251202B2

公开(公告)日：2007-07-31

申请号：US10633813

申请日：2003-08-04

申请人： Kenichi Nishiuchi ,  Shigeaki Furukawa ,  Tetsuya Akiyama

发明人： Kenichi Nishiuchi ,  Shigeaki Furukawa ,  Tetsuya Akiyama

IPC分类号： G11B7/00

CPC分类号： G11B7/261 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079

摘要： A substrate for an optical recording medium includes recording tracks formed in guide grooves on a disc and an address section having an address pit sequence formed between the recording tracks in the guide grooves along an information reading direction of the recording tracks. The recording tracks in the guide grooves are divided into a prescribed number of zones. In each of the zones, the center of the address section corresponding to a recording track in the radially outermost or radially innermost guide groove is disposed so as to shift in a radial direction of the disc in relative relationship to the center of the recording track in the guide groove.

摘要翻译： 用于光学记录介质的基板包括形成在盘上的导向槽中的记录轨道和沿着记录轨道的信息读取方向形成在引导槽中的记录轨道之间的地址区序列的地址段。 引导槽中的记录轨迹被划分成规定数量的区域。 在每个区域中，与在径向最外侧或径向最内侧的导向槽中的记录轨道相对应的地址区域的中心被设置为在盘的径向方向上相对于记录轨道的中心相对移动 引导槽。