公开(公告)号：US06510116B1

公开(公告)日：2003-01-21

申请号：US09493102

申请日：2000-01-28

申请人： Naoyasu Miyagawa ,  Takashi Ishida ,  Junichi Minamino ,  Kenji Koishi ,  Shigeru Furumiya

发明人： Naoyasu Miyagawa ,  Takashi Ishida ,  Junichi Minamino ,  Kenji Koishi ,  Shigeru Furumiya

IPC分类号： G11B509

CPC分类号： G11B7/00456 ,  G11B7/00736 ,  G11B7/24085 ,  G11B20/10009 ,  G11B20/10481 ,  G11B2020/1275 ,  G11B2220/2537

摘要： When data is reproduced by an apparatus which is different from an apparatus used for recording the data, the fluctuation of edge positions of the reproducing data increases, making reproduction incompatible, and the present invention solves this problem. The present invention comprises reproducing learning means 13 and 24 for switching a frequency characteristic of the reproducing system, which detects the changes of the local optical constant, to a predetermined frequency characteristic, and recording learning means 20 for correcting the start edge or end edge position of the recording pulse for each combination of length of a mark block and length of the preceding or subsequent space, so that the edge position of the binarized reproducing data comes to a desired position, and since the frequency characteristic of the reproducing system is unified before learning the edge shift amount caused by the thermal interference between marks, the length of the recorded marks and spaces can always be constant, which improves the reproducing compatibility among reproducing apparatuses.

摘要翻译： 当通过与用于记录数据的装置不同的装置再现数据时，再现数据的边缘位置的波动增加，使得再现不兼容，并且本发明解决了这个问题。 本发明包括用于将检测局部光学常数的变化的再现系统的频率特性切换到预定频率特性的再现学习装置13和24，以及用于校正起始边缘或结束边缘位置的记录学习装置20 对于标记块的长度和前一或后续空格的长度的每个组合的记录脉冲，使得二值化再现数据的边缘位置到达期望位置，并且由于再现系统的频率特性在 学习由标记之间的热干扰引起的边缘偏移量，记录的标记和间隔的长度总是恒定的，这提高了再现装置之间的再现兼容性。

公开(公告)号：US06480449B1

公开(公告)日：2002-11-12

申请号：US09370288

申请日：1999-08-09

申请人： Kenji Narumi ,  Naoyasu Miyagawa

发明人： Kenji Narumi ,  Naoyasu Miyagawa

IPC分类号： G11B700

CPC分类号： G11B7/0045 ,  G11B7/0062 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/1267

摘要： An optical information recording apparatus, an optical information recording method, and an optical information recording medium that enable information signals to be recorded precisely by determining recording conditions such as recording power, edge positions of recording pulses, and the like suitably before recording information signals. An edge test signal generation circuit supplies a test signal for optimizing edge positions of recording pulses. In order to suppress the variation in intervals between edges due to mark distortion caused by overwriting, test recording is carried out using this test signal in a plurality of sectors on the optical information recording medium with a test recording start point being shifted at random in each sector by a recording start point shifting circuit. A system control circuit calculates an average of intervals between edges in test signals reproduced from the plurality of sectors and determines the difference between the average and an original interval between edges in the test signal, thus determining a compensation volume for edge positions.

摘要翻译： 一种光信息记录装置，光信息记录方法和光信息记录介质，通过在记录信息信号之前适当地确定诸如记录功率，记录脉冲的边缘位置等的记录条件，能够精确地记录信息信号。 边缘测试信号产生电路提供用于优化记录脉冲的边缘位置的测试信号。 为了抑制由重写导致的标记失真导致的边缘之间的间隔的变化，在光信息记录介质上的多个扇区中使用该测试信号进行测试记录，其中每个测试记录开始点随机移位 通过记录开始点移位电路。 系统控制电路计算从多个扇区再现的测试信号中的边缘之间的间隔的平均值，并且确定测试信号中的平均值和边缘之间的原始间隔之间的差异，从而确定边缘位置的补偿量。

公开(公告)号：US6044051A

公开(公告)日：2000-03-28

申请号：US827748

申请日：1997-04-09

申请人： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

发明人： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B20/10 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B27/3027 ,  G11B20/10009 ,  G11B20/1252 ,  G11B27/19 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/013 ,  G11B2220/20

摘要： There is provided an optical information recording/reproducing device for recording, reproducing, or erasing information on an optical information recording medium including information tracks formed on a disk substrate including alternating groove tracks and land tracks each including: a header region for recording identification data representing location information in pre-pits; and a data region for recording user data, the pre-pits being grouped into blocks, the blocks wobbling alternately toward an inner periphery or an outer periphery of the disk substrate along a radius direction from a center line of each information track by a distance which is substantially 1/2 of the information track pitch. The pre-pits are provided along the radius direction at a pitch twice as large as the track pitch. The device includes: an optical system for radiating a light beam as a converged beam spot on an information track; an optical detector including two light receiving portions divided in parallel to the track direction for receiving the light beam reflected from the recording medium; a signal generator for generating a differential signal and an addition signal of output signals respectively output from the light receiving portions; a header region detection circuit for determining whether the converged beam spot is tracing the header region or the data region using the differential signal; and at least one reading circuit for reading the identification data from the differential signal and for reading information recorded in the data region from the addition signal.

摘要翻译： 提供了一种光学信息记录/再现装置，用于在包括形成在包括交替的凹槽轨道和脊迹道的盘基底上的信息轨迹的光信息记录介质上记录，再现或擦除信息，所述光盘信息记录介质包括：标题区，用于记录表示 预坑中的位置信息; 以及用于记录用户数据的数据区域，将预定凹坑分组成块，块沿着每个信息轨道的中心线沿半径方向交替地向盘基板的内周或外周摆动一距离 基本上为信号轨道间距的+ E，fra 1/2 + EE。 预制坑沿着半径方向以轨道间距的两倍大的间距设置。 该装置包括：用于在信息轨道上辐射作为会聚束斑的光束的光学系统; 光检测器，其包括与轨道方向平行分割的两个光接收部分，用于接收从记录介质反射的光束; 信号发生器，用于产生分别从光接收部分输出的差分信号和输出信号的相加信号; 标题区域检测电路，用于使用所述差分信号来确定所述会聚波束点是跟踪所述头部区域还是所述数据区域; 以及至少一个读取电路，用于从差分信号读取识别数据，并用于从加法信号读取记录在数据区中的信息。

公开(公告)号：US20110107134A1

公开(公告)日：2011-05-05

申请号：US13000178

申请日：2010-03-05

申请人： Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino ,  Atsushi Nakamura ,  Naoyasu Miyagawa ,  Motoshi Ito

发明人： Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino ,  Atsushi Nakamura ,  Naoyasu Miyagawa ,  Motoshi Ito

IPC分类号： G06F1/04

CPC分类号： G11B7/00736 ,  G11B7/00456 ,  G11B7/0062

摘要： The present invention provides a measure for getting read/write control information stored within a space of a predetermined size in a format that ensures compatibility with media of a lower order or an older generation even if the size of the read/write control information increases significantly as the storage densities of information storage media rise in the near future. On an information storage medium, a data sequence is writable as a combination of marks and spaces. The medium has at least one information storage layer, which has an information storage area to store information and a control information area for use to perform a read/write operation on the at least one information storage layer. The control information area stores at least one set of control information, which includes a first kind of write pulse information including information to be used as a reference value and a second kind of write pulse information including information to be used as an offset value. If the pulse width or pulse position of a write pulse is definable with a precision of 1T/n (where T is a channel clock pulse width and n is a positive integer), the size of the offset value is large enough to define at least an n/2 range.

摘要翻译： 本发明提供一种用于获得存储在预定大小的空间内的读/写控制信息的措施，即使读/写控制信息的大小显着增加，也可以确保与较低级别或较老版本的媒体兼容的格式 随着信息存储媒体的存储密度在不久的将来上升。 在信息存储介质上，作为标记和空格的组合可写入数据序列。 介质具有至少一个信息存储层，其具有用于存储信息的信息存储区域和用于对至少一个信息存储层执行读/写操作的控制信息区域。 控制信息区域存储至少一组控制信息，该组控制信息包括包括要用作参考值的信息的第一种写入脉冲信息和包括要用作偏移值的信息的第二种写入脉冲信息。 如果写入脉冲的脉冲宽度或脉冲位置以1T / n的精度定义（其中T是通道时钟脉冲宽度，n是正整数），则偏移值的大小足够大以至少定义 一个n / 2范围。

公开(公告)号：US20110063963A1

公开(公告)日：2011-03-17

申请号：US12915307

申请日：2010-10-29

申请人： Atsushi NAKAMURA ,  Naoyasu Miyagawa

发明人： Atsushi NAKAMURA ,  Naoyasu Miyagawa

IPC分类号： G11B20/10

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

摘要： There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser light into plural power levels. The method includes: coding to-be-recorded data into coded data consisting of the combination of marks and spaces; classifying said marks within said coded data on the basis of the mark length and the preceding or succeeding space lengths of the marks; shifting the position of the second pulse edge counted from the end portion of the recording pulse train for forming said marks, depending on the result of said classification, to adjust said recording pulse train; and directing said recording pulse train to the optical disc medium to form said marks thereon.

摘要翻译： 提供了一种用于将记录脉冲序列引导到光盘介质以在其上形成标记并用于记录信息作为关于所述标记的边缘位置和标记之间的空间的信息的光学记录方法，记录脉冲串是通过调制产生的 激光成多个功率级。 该方法包括：将要记录的数据编码成由标记和空格的组合组成的编码数据; 基于标记长度和标记的前一或后续间隔长度，对所述编码数据内的所述标记进行分类; 根据所述分类的结果，从用于形成所述标记的记录脉冲序列的端部计数的第二脉冲边缘的位置移位，以调整所述记录脉冲串; 并将所述记录脉冲序列引导到光盘介质上以在其上形成所述标记。

公开(公告)号：US20110051592A1

公开(公告)日：2011-03-03

申请号：US12920193

申请日：2010-03-01

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa ,  Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa ,  Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino

IPC分类号： G11B7/26

CPC分类号： G11B7/00736 ,  G11B7/00454 ,  G11B7/00456 ,  G11B7/261 ,  G11B7/263 ,  G11B20/10009 ,  G11B20/10453 ,  G11B20/1217 ,  G11B2007/0006 ,  G11B2020/1279 ,  G11B2020/1298 ,  G11B2220/2541

摘要： An optical information storage medium according to the present invention has at least one information storage layer. The optical information storage medium has a management area that stores at least one unit containing control information about the optical information storage medium. The control information includes a format number, which provides information about at least a write strategy type and a write pre-compensation type, and a write strategy parameter, which provides information about the magnitude of shift in an edge position, or variation in the pulse width, of a write pulse train to form a recording mark. And the value of the format number changes according to a combination of the write strategy type and the write pre-compensation type.

摘要翻译： 根据本发明的光学信息存储介质具有至少一个信息存储层。 光信息存储介质具有存储包含关于光信息存储介质的控制信息的至少一个单元的管理区域。 控制信息包括提供关于至少写入策略类型和写入预补偿类型的信息的格式编号，以及写入策略参数，其提供关于边缘位置的移位幅度或脉冲变化的信息 写入脉冲串的宽度以形成记录标记。 并且格式编号的值根据写策略类型和写预补偿类型的组合而改变。

公开(公告)号：USRE39447E1

公开(公告)日：2006-12-26

申请号：US09609699

申请日：1999-11-22

申请人： Naoyasu Miyagawa ,  Yasuhiro Gotoh

发明人： Naoyasu Miyagawa ,  Yasuhiro Gotoh

IPC分类号： G11B7/00

CPC分类号： G11B7/085 ,  G11B7/0037 ,  G11B7/08505 ,  G11B7/12 ,  G11B7/124 ,  G11B7/1245 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/13925 ,  G11B19/12 ,  G11B23/0302 ,  G11B23/30 ,  G11B2007/0006

摘要： An optical disc apparatus for recording, reproducing or erasing an information signal by converging a light flux onto a recording layer through a transparent substrate. The apparatus includes one or a plurality of optical heads having a plurality of objective lenses whose aberrations have respectively been corrected for a plurality of disc substrates of different thicknesses, a cartridge for enclosing the optical disc, a discrimination hole which is formed on the cartridge, and a sensor for detecting the opening/closing state of the discrimination hole and for generating a discrimination signal. In accordance with the result of the discrimination as to the thickness of the loaded optical disc, the objective lens, in which the occurrence of the aberration is smallest, is used, so that the information signal can preferably be recorded, reproduced or erased onto/from the optical discs having different substrate thicknesses. Instead of an optical head having objective lenses, an optical head having a waveguide and a plurality of converging grating couplers whose aberrations have respectively been corrected for a plurality of disc substrates of different thicknesses is provided to achieve the same object. An optical recording/reproducing apparatus for recording, reproducing or erasing an information signal onto/from an optical disc having at least a transparent substrate and an information layer by converging a light flux on the information layer through the transparent substrate. The apparatus includes optical converging devices, with different numerical apertures, focal distances or working distances, such as objective lenses or grating lenses, for performing aberration correction over a plurality of transparent substrates of different thicknesses of optical discs and a device for discriminating the type of optical disc based on the thicknesses of the transparent substrates. One of the optical converging devices that generates the least aberration is used according to a result of the discrimination of the thickness of the optical disk loaded in the apparatus to cause the information signal to be suitably recorded, reproduced or erased onto/from the optical discs having the different substrate thicknesses.

公开(公告)号：US20060044968A1

公开(公告)日：2006-03-02

申请号：US10532946

申请日：2003-10-28

申请人： Kenji Narumi ,  Naoyasu Miyagawa ,  Kenichi Nishiuchi

发明人： Kenji Narumi ,  Naoyasu Miyagawa ,  Kenichi Nishiuchi

IPC分类号： G11B5/09

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

摘要： An optical information recording device includes a linear velocity setting circuit for setting a first linear velocity v1 and a second linear velocity v2 higher than the first linear velocity v1 for a optical information recording medium, a recording pulse generation circuit for generating a recording pulse signal, depending on the setting by the linear velocity setting circuit, and a laser drive circuit for irradiating the medium with the laser light based on the recording pulse signal generated by the recording pulse generation circuit. The laser drive circuit controls a power level of the laser light so that Pbt1≦Pe1 and Pe2

摘要翻译： 一种光学信息记录装置，包括用于设置光学信息记录介质的第一线速度v 1和高于第一线速度v 1的第二线速度v 2的线速度设定电路，用于产生记录的记录脉冲发生电路 脉冲信号，取决于线速度设定电路的设定，以及激光驱动电路，用于根据由记录脉冲发生电路产生的记录脉冲信号用激光照射介质。 激光驱动电路控制激光的功率电平，使得Pbt 1 <= Pe 1和Pe 2

公开(公告)号：US06532209B2

公开(公告)日：2003-03-11

申请号：US10108283

申请日：2002-03-26

申请人： Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Eiji Ohno ,  Nobuo Akahira

发明人： Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Eiji Ohno ,  Nobuo Akahira

IPC分类号： G11B724

CPC分类号： G11B11/10595 ,  G11B7/0045 ,  G11B7/00456 ,  G11B7/005 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00736 ,  G11B7/08505 ,  G11B7/08511 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/094 ,  G11B7/126 ,  G11B7/1267

摘要： An optical information recording and reproducing apparatus for recording and reproducing an information signal on/from both concave portions and convex portions of guide grooves formed on a recording medium is disclosed. The optical information recording and reproducing apparatus includes: an optical portion for focusing a light beam emitted from a light source on the recording medium; a focusing control portion for controlling a focal point of the light beam; a tracking control portion for controlling the position of the light beam; a selection portion for selecting which of the concave portions and the convex portions of the guide grooves are used for recording or reproducing; a polarity inverting portion for inverting the polarity of an output signal from the tracking control portion depending on a result selected by the selection portion; a waveform setting portion for setting a modulation pattern for the light; and a signal reproduction portion for demodulating the information signal from a light reflected or transmitted by recorded marks recorded on the recording medium; wherein at least one of the focusing control portion, the tracking control portion, the waveform setting portion and the signal reproduction portion has at least two kinds of operation conditions for recording and reproducing the information signal on/from the concave portions and the convex portions of the guide grooves, and wherein the operation conditions are selected depending on the result selected by the selection portion.

公开(公告)号：US06529457B1

公开(公告)日：2003-03-04

申请号：US09559554

申请日：2000-04-27

申请人： Kenji Narumi ,  Naoyasu Miyagawa

发明人： Kenji Narumi ,  Naoyasu Miyagawa

IPC分类号： G11B700

CPC分类号： G11B7/0045 ,  G11B7/0062 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/1267

摘要： An optical information recording apparatus, an optical information recording method, and an optical information recording medium that enable information signals to be recorded precisely by determining recording conditions such as recording power, edge positions of recording pulses, and the like suitably before recording information signals. An edge test signal generation circuit supplies a test signal for optimizing edge positions of recording pulses. In order to suppress the variation in intervals between edges due to mark distortion caused by overwriting, test recording is carried out using this test signal in a plurality of sectors on the optical information recording medium with a test recording start point being shifted at random in each sector by a recording start point shifting circuit. A system control circuit calculates an average of intervals between edges in test signals reproduced from the plurality of sectors and determines the difference between the average and an original interval between edges in the test signal, thus determining a compensation volume for edge positions.