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    Method and apparatus for determining optical recording power used for recording onto an optical disk
    2.
    发明授权
    Method and apparatus for determining optical recording power used for recording onto an optical disk 失效
    用于确定用于记录到光盘上的光学记录功率的方法和装置

    公开(公告)号：US06614735B2

    公开(公告)日：2003-09-02

    申请号：US09814073

    申请日：2001-03-22

    申请人： Mamoru Shoji ,  Ariaki Ito ,  Takashi Ishida ,  Yukihiro Yamasaki ,  Toshiya Akagi

    发明人： Mamoru Shoji ,  Ariaki Ito ,  Takashi Ishida ,  Yukihiro Yamasaki ,  Toshiya Akagi

    IPC分类号： G11B7125

    CPC分类号： G11B7/126 ,  G11B7/00375 ,  G11B7/00718 ,  G11B27/36 ,  G11B2220/20

    摘要： The invention provides an optical disc device and a method of determining an optimal laser power for data recording by trial recording before recording actual user data even when there are fingerprints in the test track area for the trial recording. The BER (Byte Error Rate) is detected in each recorded sector. If the BER is less than a particular threshold value, the sector is taken as OK (good). Otherwise the sector is taken as NG (no good). While the peak power level is gradually changed or decreased from the power level at which half or more of the plural reproduced sectors are OK, a boundary peak power at which half or more of the sectors become NG is found. Based on the found boundary power, an amount of the optimal peak power is determined.

    摘要翻译： 本发明提供了一种光盘装置和方法，即使在用于试验记录的测试轨迹区域中存在指纹时，也可以在记录实际用户数据之前通过试验记录确定用于数据记录的最佳激光功率。 在每个记录扇区中检测到BER（字节错误率）。 如果BER小于特定阈值，则扇区被视为OK（良好）。 否则，该部门被视为NG（不好）。 当峰值功率电平从多个再现扇区的一半以上的功率电平逐渐变化或减小时，发现半个以上的扇区变为NG的边界峰值功率。 基于找到的边界功率，确定最佳峰值功率的量。

    Optical disc device
    3.
    发明授权
    Optical disc device 有权

    公开(公告)号：US06434098B1

    公开(公告)日：2002-08-13

    申请号：US09840874

    申请日：2001-04-25

    申请人： Shinichi Konishi ,  Takeshi Nakajima ,  Harumitsu Miyashita ,  Toshihiko Takahashi ,  Toshiya Akagi ,  Yuji Hisakado ,  Yukihiro Yamasaki

    发明人： Shinichi Konishi ,  Takeshi Nakajima ,  Harumitsu Miyashita ,  Toshihiko Takahashi ,  Toshiya Akagi ,  Yuji Hisakado ,  Yukihiro Yamasaki

    IPC分类号： G11B700

    摘要： An optical disc drive usable with discs to which data is continuously recorded and discs having a sector format can quickly resume playback signal output after passing imperfection causing potential reading errors, and plays disc with few read errors. A detection signal generator detects DC level fluctuation in the playback signal read from the disc and generates a detection signal tracking the DC level fluctuation. A selector selects a detection signal or a null signal without valid polarity based on the detection signal generated by the detection signal generator and input to the selector. A clamping unit performs a clamping process to suppress DC level fluctuation in the playback signal based on the detection signal when the selection unit selects the detection signal, and does not perform the clamping process when the selection unit selects the null signal. A signal processor performs specific signal processes based on clamping unit output.

    Optical disk device
    5.
    发明授权
    Optical disk device 有权
    光盘装置

    公开(公告)号：US06236629B1

    公开(公告)日：2001-05-22

    申请号：US09694016

    申请日：2000-10-23

    申请人： Yuji Hisakado ,  Toshiya Akagi ,  Yukihiro Yamasaki

    发明人： Yuji Hisakado ,  Toshiya Akagi ,  Yukihiro Yamasaki

    IPC分类号： G11B700

    CPC分类号： G11B7/004 ,  G11B7/007 ,  G11B20/1403 ,  G11B27/19 ,  G11B27/3027 ,  G11B2220/20

    摘要： An optical disk is operated in a ZCLV system for generating a stable and precise clock and the operation proceeds with a speed change of a high-speed motor when data is stored with the motor accelerated or decelerated at a high speed to improve accessibility for data storage. The optical disk includes: a disk rotator for rotating the optical disk at an optional number of rotations; a rotation controller for controlling rotation of the optical disk; a wobble extractor for extracting wobbling on the track of the optical disk; a clock extractor for extracting a clock element from the wobbling; a speed detector for detecting a linear speed of the optical disk; and a response switch for switching a response of the clock extractor, in which the response of the clock extractor is switched depending on the linear speed of the optical disk.

    摘要翻译： 光盘在ZCLV系统中操作，用于产生稳定和精确的时钟，并且随着电机以高速加速或减速的数据存储数据时，操作将随着高速电机的速度变化而进行，以提高数据存储的可访问性 。 光盘包括：盘旋转器，用于以可选的转数旋转光盘; 旋转控制器，用于控制光盘的旋转; 用于提取光盘轨道上的摆动的摆动提取器; 时钟提取器，用于从摆动中提取时钟元件; 用于检测光盘的线速度的速度检测器; 以及用于切换时钟提取器的响应的响应开关，其中时钟提取器的响应根据光盘的线速度而切换。

    Laser power controller and optical disk device
    6.
    再颁专利
    Laser power controller and optical disk device 失效
    激光功率控制器和光盘设备

    公开(公告)号：USRE39952E1

    公开(公告)日：2007-12-25

    申请号：US11223909

    申请日：1999-08-20

    申请人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

    发明人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

    IPC分类号： G11B7/00

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/0055 ,  G11B7/0062 ,  G11B7/00718 ,  G11B7/1263

    摘要： A power control device for controlling a power of a light source of an optical beam directed to an optical medium. The power control device includes a reflected light detector for detecting reflected light from the optical medium when irradiated by an optical beam which is following a track; an arithmetic unit for calculating from the reflected light a transmissivity of light transmitted from a disk surface to a recording layer or an amount of directed light on the recording layer of the medium; and power control means for controlling the power of the light source for emission based on a calculation result produced by the arithmetic unit.

    摘要翻译： 一种用于控制指向光学介质的光束的光源的功率的功率控制装置。 功率控制装置包括反射光检测器，用于当由跟随轨道的光束照射时检测来自光学介质的反射光; 用于从反射光计算从盘表面传输到记录层的光的透射率或介质的记录层上的定向光量的运算单元; 以及功率控制装置，用于基于由运算单元产生的计算结果来控制用于发射的光源的功率。

    Laser power controller and optical disk device
    7.
    发明授权
    Laser power controller and optical disk device 有权
    激光功率控制器和光盘设备

    公开(公告)号：US06621779B1

    公开(公告)日：2003-09-16

    申请号：US09763277

    申请日：2001-05-11

    申请人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

    发明人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

    IPC分类号： B11B700

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/0055 ,  G11B7/0062 ,  G11B7/00718 ,  G11B7/1263

    摘要： A power control device for controlling a power of a light source of an optical beam directed to an optical medium. The power control device includes a reflected light detector for detecting reflected light from the optical medium when irradiated by an optical beam which is following a track; an arithmetic unit for calculating from the reflected light a transmissivity of light transmitted from a disk surface to a recording layer or an amount of directed light on the recording layer of the medium; and power control means for controlling the power of the light source for emission based on a calculation result produced by the arithmetic unit.

    摘要翻译： 一种用于控制指向光学介质的光束的光源的功率的功率控制装置。 功率控制装置包括反射光检测器，用于当由跟随轨道的光束照射时检测来自光学介质的反射光; 用于从反射光计算从盘表面传输到记录层的光的透射率或介质的记录层上的定向光量的运算单元; 以及功率控制装置，用于基于由运算单元产生的计算结果来控制用于发射的光源的功率。

    Recording/reproducing device
    8.
    发明授权
    Recording/reproducing device 有权
    记录/再现装置

    公开(公告)号：US07095696B2

    公开(公告)日：2006-08-22

    申请号：US10473307

    申请日：2002-04-05

    申请人： Takeshi Nakajima ,  Harumitsu Miyashita ,  Toshiya Akagi ,  Shinichi Konishi

    发明人： Takeshi Nakajima ,  Harumitsu Miyashita ,  Toshiya Akagi ,  Shinichi Konishi

    IPC分类号： G11B5/09

    CPC分类号： G11B7/126 ,  G11B7/00 ,  G11B7/00456 ,  G11B7/006 ,  G11B20/10009 ,  G11B20/1426

    摘要： A recording/producing device for writing data on a recording medium, or reading data from the recording medium, wherein data matching a recording pattern so specified as to include a plurality of mutually different sets of mark lengths and space lengths is written on the recording medium, and the data is then read to generate data signals. An edge shift detector uses data signals to measure the edge shift amount of a mark formed on a recording medium for each set of a mark length and a space length. A record controller sets a recording parameter for each set of a mark length and a space length based on the measured edge shift amount.

    摘要翻译： 一种用于在记录介质上写入数据或从记录介质读取数据的记录/产生装置，其中将与指定为包括多个相互不同的多个标记长度和间隔长度的记录图案匹配的数据被写入记录介质 ，然后读取数据以产生数据信号。 边缘移位检测器使用数据信号来测量形成在记录介质上的每个标记长度和间隔长度的标记的边缘移位量。 记录控制器基于所测量的边缘偏移量为每组标记长度和空间长度设置记录参数。

    Optical disk device and emission current adjusting method for the same
    9.
    发明申请
    Optical disk device and emission current adjusting method for the same 失效
    光盘装置和发射电流调节方法相同

    公开(公告)号：US20050157625A1

    公开(公告)日：2005-07-21

    申请号：US11033959

    申请日：2005-01-13

    申请人： Eisuke Ishibashi ,  Yasuhiro Wada ,  Shinya Shimizu ,  Toshiya Akagi

    发明人： Eisuke Ishibashi ,  Yasuhiro Wada ,  Shinya Shimizu ,  Toshiya Akagi

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

    CPC分类号： G11B7/1263 ,  G11B7/00456

    摘要： A ratio of an erase current and a peak current when starting recording is defined as K=iER/iPK (S1), and iER11 is set equal to K×iPK1, and an ideal value iER11 of an erase current that should be increased according to a temperature change is determined (S2). A value obtained by subtracting a current iBT at a bottom level emission intensity when starting recording from a current at an erase level emission intensity after the temperature rises is defined as iER1. By measuring this iER1, an ideal value iER11 of the erase current is subtracted from iER1, and the resultant current is defined as iBT11 (S3). This iBT11 is set as an adjustment value of the bottom current, and a value obtained by adding this adjustment value to a bottom current when starting recording is set as a bottom current after change.

    摘要翻译： 开始记录时的擦除电流和峰值电流的比率被定义为K = iER / iPK（S 1），并且将iER11设置为等于KxiPK 1，并且将擦除电流的理想值iER 11设置为相应于 确定温度变化（S 2）。 通过从温度升高后的擦除电平发射强度的电流开始记录时减去以下电平发射强度的电流iBT而获得的值被定义为iER 1。 通过测量这个iER 1，从iER 1中减去擦除电流的理想值iER 11，结果电流定义为iBT 11（S 3）。 将该iBT11设定为底部电流的调整值，将开始记录时将该调整值与底部电流相加得到的值设定为变更后的底部电流。

    Information recording/reproducing device using optical disk and method therefor and information recording system and information recording method
    10.
    再颁专利
    Information recording/reproducing device using optical disk and method therefor and information recording system and information recording method 有权
    使用光盘的信息记录/再现装置及其方法和信息记录系统和信息记录方法

    公开(公告)号：USRE40240E1

    公开(公告)日：2008-04-15

    申请号：US11493013

    申请日：2000-07-26

    申请人： Toyoji Gushima ,  Toshiya Akagi ,  Chikashi Inokuchi

    发明人： Toyoji Gushima ,  Toshiya Akagi ,  Chikashi Inokuchi

    IPC分类号： G11B7/00

    CPC分类号： G11B20/18 ,  G11B20/1883 ,  G11B20/1889 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2575

    摘要： The sector synchronism of a timing generation section for generating data recording/reproducing timing is corrected at the address-mark detection timing of an address-mark detection section. Moreover, even if only one piece of address information having no error is not reproduced in the sector concerned, when at least one piece of address information having no error is reproduced in any of a predetermined number of sectors preceding the subject sector and at least one address mark is detected in the subject sector, the data recording/reproducing is permitted, and thus, the data is recorded/reproduced at a high speed and a high reliability even if an error rate of a physical address is deteriorated.

    摘要翻译： 在地址标记检测部分的地址标记检测定时校正用于产生数据记录/再现定时的定时产生部分的扇区同步。 此外，即使只有一条没有错误的地址信息在相关的扇区中不再现，当至少一条没有错误的地址信息被再现在主题扇区之前的预定数量的扇区中的任一个中，并且至少一个 在主体扇区中检测到地址标记，允许数据记录/再现，因此，即使物理地址的错误率恶化，数据也以高速和高可靠性被记录/再现。