公开(公告)号：US5572506A

公开(公告)日：1996-11-05

申请号：US373643

申请日：1995-01-17

申请人： Ikuo Aoki

发明人： Ikuo Aoki

IPC分类号： G11B7/007 ,  G11B7/085 ,  G11B11/10 ,  G11B11/105 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B7/24

CPC分类号： G11B20/12 ,  G11B11/10565 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/00745 ,  G11B2020/10916 ,  G11B2220/2525 ,  G11B7/085

摘要： An optical information recording medium in the form of an magneto-optical recording disk with a sector format preformatted in accordance with a mark edge recording method, wherein two types of preformat patterns are provided for an area VFO2 for a PLL, positioned after an area ID1 or an area ID2 indicating a track number or a sector number, with one pattern being selected from the two types of preformat patterns and being preformatted, depending upon whether a prepit preformatted in the area ID1 or the area ID2 is completed within the area ID1 or the area ID2, or is discontinued in the area ID1 or the area ID2. The optical information recording medium may be in the form of a 90 mm ROM disk or a 90 mm magneto-optical recording disk including a partial ROM section, provided with a sector format which is preformatted in accordance with the mark edge recording method, wherein a specified data pattern is preformatted in an area GAP or wherein a specified data pattern is preformatted in part or all of areas GAP, FLAG, GAP, and ALPC.

摘要翻译： 一种具有根据标记边缘记录方法预格式化的扇区格式的磁光记录盘形式的光学信息记录介质，其中为区域ID1设置了用于PLL的区域VFO2的两种类型的预格式化模式 或指示轨道号或扇区号的区域ID2，其中一种模式从两种类型的预格式化模式中选择并且被预格式化，这取决于在区域ID1或区域ID1内是否完成了在区域ID1或区域ID2中预先格式化的预凹坑完成 区域ID2，或者在区域ID1或区域ID2中断。 光学信息记录介质可以是90mm ROM盘或包括部分ROM部分的90mm磁光记录盘的形式，其具有根据标记边缘记录方法被格式化的扇区格式，其中a 指定的数据模式在区域GAP中预格式化，或者其中指定的数据模式在区域GAP，FLAG，GAP和ALPC的部分或全部被预格式化。

公开(公告)号：US5195076A

公开(公告)日：1993-03-16

申请号：US721707

申请日：1991-06-26

申请人： Ikuo Aoki

发明人： Ikuo Aoki

IPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/09

CPC分类号： G11B7/00375 ,  G11B7/0938

摘要： A defect detection circuit for optical pick up device having a record medium on which a track is formed which track has a plurality of segments formed in series along the track. The circuit comprises a first detection circuit for detecting a defect of a segment sampled to be detected by comparing difference between a latest data of a refresh signal from the segment and a preceding data of a refresh signal from a preceding segment sampled before the segment to be detected with a first predetermined value. The circuit further comprises a second detection circuit for detecting a defect of the segment to be detected by comparing the latest data with a second predetermined value and a discrimination circuit for discriminating whether the segment is defective or not.

摘要翻译： 一种用于具有记录介质的光学拾取装置的缺陷检测电路，轨道形成在该记录介质上，该轨道具有沿轨道串联形成的多个段。 该电路包括：第一检测电路，用于通过比较来自该片段的刷新信号的最新数据和来自前段之前采样的前一段的刷新信号的前一数据之间的差值来检测待采样的片段的缺陷， 以第一预定值检测。 电路还包括第二检测电路，用于通过将最新数据与第二预定值进行比较来检测要检测的片段的缺陷，以及用于鉴别片段是否有缺陷的鉴别电路。

公开(公告)号：US20050250046A1

公开(公告)日：2005-11-10

申请号：US11114147

申请日：2005-04-26

申请人： Ikuo Aoki ,  Yoshitaka Takahashi

发明人： Ikuo Aoki ,  Yoshitaka Takahashi

IPC分类号： G11B7/0065 ,  G11B7/24

CPC分类号： G11B7/00781 ,  G11B7/0065

摘要： A hologram recording medium and apparatus for and method of recording data on the recording medium. The recording medium is a card shaped hologram recording medium having an auxiliary recording area at a periphery of a main or user data recording area. Address information is recorded along one or two sides of the main or user data recording area. The recording medium may also be divided into a plurality of user data areas each having associated address data on the one or two sides. A recording location is determined by reference to the address information.

摘要翻译： 一种全息图记录介质以及用于在记录介质上记录数据的方法和方法。 记录介质是在主数据记录区或用户数据记录区的周围具有辅助记录区的卡状全息图记录介质。 主要或用户数据记录区域的一侧或两侧记录地址信息。 记录介质还可以被划分成多个用户数据区域，每个用户数据区域在一侧或两侧具有相关联的地址数据。 通过参考地址信息来确定记录位置。

公开(公告)号：US20050200926A1

公开(公告)日：2005-09-15

申请号：US11064119

申请日：2005-02-17

申请人： Ikuo Aoki ,  Yoshitaka Takahashi

发明人： Ikuo Aoki ,  Yoshitaka Takahashi

IPC分类号： G02B5/32 ,  G11B7/24 ,  G11B7/24038

CPC分类号： G11B7/0065 ,  G11B7/0053 ,  G11B7/00781 ,  G11B7/0079 ,  G11B7/24038

摘要： An optical recording medium for performing a hologram recording on a first layer and a ROM reproducing layer or a thermal recording layer and easily detecting the recording location of a hologram without reducing a recording capacity. The optical recording medium includes one surface having a hologram recording layer for recording information of an object beam as interference fringes by irradiating the object beam and a reference beam and at least one other surface having a ROM layer or a thermal layer on which pits are formed to store information to easily detect the recorded location of the hologram.

摘要翻译： 一种用于在第一层上执行全息图记录的光记录介质，以及ROM再现层或热记录层，并且在不降低记录容量的情况下容易地检测全息图的记录位置。 光记录介质包括具有全息图记录层的一个表面，该全息图记录层用于通过照射物体光束和参考光束以及至少一个具有形成凹坑的ROM层或热层的另一表面来记录物体光束的信息作为干涉条纹 以存储信息以容易地检测全息图的记录位置。

公开(公告)号：US5712839A

公开(公告)日：1998-01-27

申请号：US588143

申请日：1996-01-18

申请人： Ikuo Aoki

发明人： Ikuo Aoki

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/125 ,  G11B7/12 ,  G11B7/13

CPC分类号： G11B7/126 ,  G11B7/00454 ,  G11B7/00557

摘要： A power control system controls power of light emitted from a light source to a recording medium. The light having a first power is used to erase previous information from the recording medium and the light having a second power is used to record information in the recording medium in a recording operation. The power control system includes a detecting unit for detecting reflected light from the recording medium when the light source emits the light having the first power to erase the information from the recording medium. The detecting unit outputs a reflection signal corresponding to the reflected light. The power control system further has a control unit for controlling the first power of the light emitted from the light source so that a level of the reflection signal output from the detecting means is controlled at a predetermined target level.

摘要翻译： 功率控制系统控制从光源发射到记录介质的光的功率。 具有第一功率的光用于从记录介质擦除先前的信息，并且具有第二功率的光用于在记录操作中将信息记录在记录介质中。 电源控制系统包括检测单元，用于当光源发射具有第一功率的光以从记录介质擦除信息时，检测来自记录介质的反射光。 检测单元输出与反射光对应的反射信号。 功率控制系统还具有用于控制从光源发射的光的第一功率的控制单元，使得从检测装置输出的反射信号的电平被控制在预定的目标电平。

公开(公告)号：US5648952A

公开(公告)日：1997-07-15

申请号：US536833

申请日：1995-09-26

申请人： Hiroshi Maegawa ,  Ikuo Aoki

发明人： Hiroshi Maegawa ,  Ikuo Aoki

IPC分类号： G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/125 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006

摘要： A trial writing operation is performed on a phase-change optical disc using write and erase light-emitting powers, which together are varied according to predetermined variation ratios respectively. Signals relevant to said trial writing operation are reproduced from said disc. Optimum ones of the write and erase light-emitting powers are determined using the thus-reproduced signals. The predetermined variation ratios for the write and erase light-emitting powers may be the same as each other. Alternatively, the trial writing operation may be performed on a phase-change optical disc using write and erase light-emitting powers which are individually varied according to predetermined variation ratios respectively.

摘要翻译： 使用写入和擦除发光功率在相变光盘上执行试用写入操作，它们一起根据预定的变化比变化。 与所述试写操作相关的信号从所述盘再现。 使用这样再生的信号来确定写入和擦除发光功率的最佳值。 写入和擦除发光功率的预定变化比可以彼此相同。 或者，可以在相变光盘上使用分别根据预定变化比单独变化的写入和擦除发光功率来执行试写操作。

公开(公告)号：US5574713A

公开(公告)日：1996-11-12

申请号：US232678

申请日：1994-04-25

申请人： Ikuo Aoki

发明人： Ikuo Aoki

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/125 ,  G11B11/105

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B7/0045

摘要： It is an object of the present invention to reduce a data error ratio in the mark edge recording method. In this invention, a corrected value of a record pulse is set by checking the data recording characteristics of an optically recording medium. For this reason, it is possible to adjust a length of a record mark to a specified value as well as to suppress errors such as data errors when data is regenerated.

摘要翻译： 本发明的目的是减小标记边缘记录方法中的数据错误率。 在本发明中，通过检查光学记录介质的数据记录特性来设置记录脉冲的校正值。 因此，可以将记录标记的长度调整为规定值，并且能够抑制数据再生时的数据错误等错误。

公开(公告)号：US5414692A

公开(公告)日：1995-05-09

申请号：US57104

申请日：1993-05-03

申请人： Ikuo Aoki

发明人： Ikuo Aoki

IPC分类号： G11B7/007 ,  G11B7/085 ,  G11B11/10 ,  G11B11/105 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B5/09

CPC分类号： G11B20/12 ,  G11B11/10565 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/00745 ,  G11B2020/10916 ,  G11B2220/2525 ,  G11B7/085

摘要： An optical information recording medium in the form of an magneto-optical recording disk with a sector format preformatted in accordance with a mark edge recording method, wherein two types of preformat patterns are provided for an area VFO2 for a PLL, positioned after an area ID1 or an area ID2 indicating a track number or a sector number, with one pattern being selected from the two types of preformat patterns and being preformatted, depending upon whether a prepit preformatted in the area ID1 or the area ID2 is completed within the area ID1 or the area ID2, or is discontinued in the area ID1 or the area ID2. The optical information recording medium may be in the form of a 90 mm ROM disk or a 90 mm magneto-optical recording disk including a partial ROM section, provided with a sector format which is preformatted in accordance with the mark edge recording method, wherein a specified data pattern is preformatted in an area GAP or wherein a specified data pattern is preformatted in part or all of areas GAP, FLAG, GAP, and ALPC.

摘要翻译： 一种具有根据标记边缘记录方法预格式化的扇区格式的磁光记录盘形式的光学信息记录介质，其中为区域ID1设置了用于PLL的区域VFO2的两种类型的预格式化模式 或指示轨道号或扇区号的区域ID2，其中一种模式从两种类型的预格式化模式中选择并且被预格式化，这取决于在区域ID1或区域ID1内是否完成了在区域ID1或区域ID2中预先格式化的预凹坑完成 区域ID2，或者在区域ID1或区域ID2中断。 光学信息记录介质可以是90mm ROM盘或包括部分ROM部分的90mm磁光记录盘的形式，其具有根据标记边缘记录方法被格式化的扇区格式，其中a 指定的数据模式在区域GAP中预格式化，或者其中指定的数据模式在区域GAP，FLAG，GAP和ALPC的部分或全部被预格式化。

公开(公告)号：US5218589A

公开(公告)日：1993-06-08

申请号：US510544

申请日：1990-04-18

申请人： Ikuo Aoki

发明人： Ikuo Aoki

IPC分类号： G11B7/09 ,  G11B20/18 ,  G11B27/36

CPC分类号： G11B20/18 ,  G11B27/36 ,  G11B7/0948

摘要： In a method for detecting a defect in a prepit as a sampling object formed on a recording face of an information recording medium in an optical or magnetooptic disk drive unit, an optical or magnetooptic disk is used as the information recording medium and focusing and tracking controls are performed by using a sample servo system at recording and reproducing times of information. This method has the steps of disposing a device for checking a plurality of reproducing signals provided when a light spot moves onto the prepit in the detection of the defect therein and calculating an average value in voltage with respect to these reproducing signals; setting the average value as a reference voltage level of the reproducing signals and setting a constant window width with respect to the average value; calculating the difference in voltage between the reference level and a sampling value of each of the reproducing signals corresponding to the prepit every time when each of the reproducing signals is sampled; comparing the voltage difference every sampling with the window width; and judging that the prepit is defective when the voltage difference exceeds the window width.

摘要翻译： 在用于检测形成在光学或磁光盘驱动单元中的信息记录介质的记录面上的作为采样对象的预制坑中的缺陷的方法中，使用光学或磁光盘作为信息记录介质，并且聚焦和跟踪控制 通过使用采样伺服系统在信息的记录和再现时间来执行。 该方法具有以下步骤：在检测到缺陷的光斑移动到预制坑上时，设置用于检查提供的多个再现信号的装置，并计算相对于这些再现信号的电压平均值; 将平均值设置为再现信号的参考电压电平，并相对于平均值设置恒定的窗口宽度; 每次对每个再现信号进行采样时，计算基准电平与对应于预制凹坑的每个再现信号的采样值之间的电压差; 将每个采样的电压差与窗口宽度进行比较; 并且当电压差超过窗口宽度时判断为预凹坑有缺陷。

公开(公告)号：US20050232115A1

公开(公告)日：2005-10-20

申请号：US11081721

申请日：2005-03-17

申请人： Ikuo Aoki ,  Yoshitaka Takahashi

发明人： Ikuo Aoki ,  Yoshitaka Takahashi

IPC分类号： G03H1/26 ,  G11B7/00 ,  G11B7/0033 ,  G11B7/0065 ,  G11B7/24012

CPC分类号： G11B7/007 ,  G03H1/26 ,  G03H2270/20 ,  G11B7/0033 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/24012

摘要： A method of recording/reproducing information on/from a card-shaped hologram memory medium is provided in which an information recording/reproducing optical system can be conveniently controlled to increase a recording capacity of the card-shaped hologram memory medium. In the method, pieces of information are sequentially recorded in a data recording/reproducing area of the card shaped hologram memory medium along a predetermined route, while maintaining a predetermined distance between pieces of information.

摘要翻译： 提供了一种在卡形全息图存储介质上记录/再现信息的方法，其中可以方便地控制信息记录/再现光学系统以增加卡状全息图存储介质的记录容量。 在该方法中，信息片段沿着预定路线被顺序地记录在卡状全息图存储介质的数据记录/再现区域中，同时保持信息段之间的预定距离。