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81. 发明授权

US07218582B2 Optical disc drive 失效
标题翻译：光盘驱动器
公开(公告)号：US07218582B2
公开(公告)日：2007-05-15
申请号：US10735009
申请日：2003-12-12
申请人： Rie Takahashi , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune , Katsuya Watanabe
发明人： Rie Takahashi , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune , Katsuya Watanabe
IPC分类号： G11B7/00
CPC分类号： G11B7/094
摘要： An optical disc drive is used to read and/or write data from/on an optical disc having a data storage layer. The drive corrects electrical offset while reading and/or writing data. The drive updates a correction value based on an electrical offset detected at correcting operation or a value derived using electrical offset values that has been detected and stored, without detecting an electrical offset at correcting operation. Therefore, the optical disc drive can correct the electrical offset less often.
摘要翻译：光盘驱动器用于从具有数据存储层的光盘上读取数据和/或写入数据。驱动器在读取和/或写入数据时纠正电气偏移。驱动器基于在校正操作中检测到的电偏移或使用已经被检测和存储的电偏移值导出的值而更新校正值，而不检测校正操作的电偏移。因此，光盘驱动器可以更少地校正电偏移。

82. 发明授权

US06961301B2 Optical disk having synchronization region formed between pre-recorded area and recordable area 有权
标题翻译：具有在预记录区域和可记录区域之间形成的同步区域的光盘
公开(公告)号：US06961301B2
公开(公告)日：2005-11-01
申请号：US10221682
申请日：2001-03-28
申请人： Takeharu Yamamoto , Yoshihiro Kanda , Hiroyuki Yamaguchi , Shinji Inoue
发明人： Takeharu Yamamoto , Yoshihiro Kanda , Hiroyuki Yamaguchi , Shinji Inoue
IPC分类号： G11B7/24 , G11B7/0045 , G11B7/0055 , G11B7/007 , G11B7/09 , G11B20/14 , G11B27/19 , G11B27/24 , G11B27/30 , G11B27/32
CPC分类号： G11B27/3027 , G11B7/00736 , G11B7/0079 , G11B7/0906 , G11B20/1403 , G11B27/24 , G11B27/329 , G11B2220/216 , G11B2220/218 , G11B2220/2562
摘要： An optical disk of the present invention includes a pre-recorded region in which pre-recorded data is recorded; a recordable region in which a first clock synchronization mark and first address information are recorded; and a synchronization region having a prescribed length which is positioned between the pre-recorded region and the recordable region.
摘要翻译：本发明的光盘包括其中记录了预先记录的数据的预先记录的区域; 记录第一时钟同步标记和第一地址信息的可记录区域; 以及位于预记录区域和可记录区域之间的具有规定长度的同步区域。

83. 发明授权

US06356522B1 Optical disk drive 失效
标题翻译：光盘驱动器
公开(公告)号：US06356522B1
公开(公告)日：2002-03-12
申请号：US09406796
申请日：1999-09-28
申请人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Hiromichi Ishibashi , Takashi Kishimoto
发明人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Hiromichi Ishibashi , Takashi Kishimoto
IPC分类号： G11B700
CPC分类号： G11B27/24 , G11B7/0037 , G11B7/08517 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2575
摘要： In performing CLV readout, a target frequency is corrected based on current and target numbers of revolutions of a disk motor during a seek operation, thereby controlling the frequency of a read clock signal at a value approximately equal to the corrected target frequency. In performing CAV readout on the other hand, the frequency of the read clock signal is approximately equalized with a data read frequency at a seek destination. By performing these frequency control operations, data reading can be started quickly enough after the seek operation is finished. In reading out information from a recordable disk with wobbling tracks on a data portion, frequency control is performed using a wobble signal with respect to an unrecorded data portion, and phase locking control is performed using a data signal with respect to an address portion. In this manner, an address can be read out constantly.
摘要翻译：在执行CLV读出时，基于搜索操作期间的盘式电动机的转数的当前和目标数来校正目标频率，从而将读取时钟信号的频率控制在大致等于校正的目标频率的值。另一方面，在执行CAV读出时，读取时钟信号的频率近似地与搜索目的地的数据读取频率相等。通过执行这些频率控制操作，可以在搜索操作完成之后足够快地开始数据读取。在从数据部分的摆动磁迹的可记录磁盘中读出信息时，使用相对于未记录数据部分的摆动信号进行频率控制，并且使用相对于地址部分的数据信号执行相位锁定控制。以这种方式，可以不断地读出地址。

84. 发明授权

US06330213B1 Optical disk drive apparatus 失效
标题翻译：光盘驱动装置
公开(公告)号：US06330213B1
公开(公告)日：2001-12-11
申请号：US09566126
申请日：2000-05-05
申请人： Hiromichi Ishibashi , Takeharu Yamamoto
发明人： Hiromichi Ishibashi , Takeharu Yamamoto
IPC分类号： G11B509
CPC分类号： G11B7/005 , G11B7/0901 , G11B7/094 , G11B20/1403
摘要： An optical disk drive apparatus drives an optical disk at a constant angular velocity (CAV). The optical disk is formatted under constant linear velocity (CLV). The phase error changes linearly from the inner most track to the outer most track. Tack pulse counter is provided to detect the radial position of the optical head on the optical disk. Calculators are provided to correct the phase error according to the radial position of the optical head.
摘要翻译：光盘驱动装置以恒定的角速度（CAV）驱动光盘。光盘在恒定线速度（CLV）下进行格式化。相位误差从最内侧轨道线性变化到最外侧轨道。提供粘性脉冲计数器以检测光学头在光盘上的径向位置。提供计算器以根据光学头的径向位置校正相位误差。

85. 发明授权

US06181651B2 Optical recording/reproducing apparatus 有权
标题翻译：光记录/重放装置
公开(公告)号：US06181651B2
公开(公告)日：2001-01-30
申请号：US09147050
申请日：1998-09-25
申请人： Takashi Kishimoto , Katsuya Watanabe , Mitsurou Moriya , Takeharu Yamamoto , Kouichi Ikeuchi , Kazushi Andoh
发明人： Takashi Kishimoto , Katsuya Watanabe , Mitsurou Moriya , Takeharu Yamamoto , Kouichi Ikeuchi , Kazushi Andoh
IPC分类号： G11B709
CPC分类号： G11B7/08541 , G11B7/08517 , G11B7/08529
摘要： A speed profile constituting the target speed for the next drive process during searching is generated by target speed generating section 140 and tracking actuator 132 is driven using the error signal in regard to the speed of movement of the light beam calculated by movement speed detection section 141 from a pulse signal obtained by converting the TE signal to binary form. Also linear motor 139 is driven using the difference signal obtained from the target speed and the speed of movement. Tracking actuator 132 is controlled so as to suppress swinging of focusing lens 107 during searching and linear motor 139 moves, during searching, under tracking control to a target speed.
摘要翻译：由目标速度生成部140生成构成搜索期间的下一个驱动处理的目标速度的速度曲线，并且使用关于由移动速度检测部141计算的光束的移动速度的误差信号来驱动跟踪致动器132 从通过将TE信号转换为二进制形式获得的脉冲信号。还使用从目标速度和移动速度获得的差分信号来驱动线性电动机139。控制跟踪致动器132，以便在搜索期间抑制聚焦透镜107在搜索期间的移动，并且在跟踪控制期间移动到目标速度。

86. 发明授权

US6134197A Optical disk drive apparatus 失效
标题翻译：光盘驱动装置
公开(公告)号：US6134197A
公开(公告)日：2000-10-17
申请号：US58886
申请日：1998-04-13
申请人： Hiromichi Ishibashi , Takeharu Yamamoto
发明人： Hiromichi Ishibashi , Takeharu Yamamoto
IPC分类号： G11B7/005 , G11B7/09 , G11B20/14 , G11B7/00
CPC分类号： G11B7/005 , G11B7/094 , G11B20/1403 , G11B7/0901
摘要： An optical disk drive apparatus drives an optical disk at a constant angular velocity (CAV). The optical disk is formatted under constant linear velocity (CLV). The phase error changes linearly from the inner most track to the outer most track. Tack pulse counter is provided to detect the radial position of the optical head on the optical disk. Calculators are provided to correct the phase error according to the radial position of the optical head.
摘要翻译：光盘驱动装置以恒定角速度（CAV）驱动光盘。光盘在恒定线速度（CLV）下进行格式化。相位误差从最内侧轨道线性变化到最外侧轨道。提供粘性脉冲计数器以检测光学头在光盘上的径向位置。提供计算器以根据光学头的径向位置校正相位误差。

87. 发明授权

US6028826A Optical disk apparatus performing correction of phase difference tracking error signal, adjustment of focus position and process of gain adjustment 失效
标题翻译：光盘装置执行相位差跟踪误差信号的校正，调整焦点位置和增益调整处理
公开(公告)号：US6028826A
公开(公告)日：2000-02-22
申请号：US932192
申请日：1997-09-17
申请人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Takashi Kishimoto
发明人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Takashi Kishimoto
IPC分类号： G11B7/09
CPC分类号： G11B7/0906 , G11B7/094 , G11B7/0941 , G11B7/0946 , G11B7/0948 , G11B7/0901
摘要： An optical disk apparatus includes a rotating device for rotating a recording medium at a prescribed reproduction rate. A converging device converges a light beam on the recording medium. A moving device moves the converging device so as to cause the converged light beam to cross a track of the recording medium. A light detection device has four areas for receiving light reflected by the recording medium and respectively outputting first, second, third and fourth detection signals. A phase correction device outputs first and second correction signals respectively by correcting the phase of the first and second detection signals in accordance with a correction amount. A tracking error detection device detects a positional offset between the converged light beam and the track based on a phase difference between first and second addition signals and outputs a tracking error signal indicating the positional offset. The first addition signal is obtained by adding the first correction signal and the fourth detection signal. The second addition signal is obtained by adding the second correction signal and the third detection signal. A tracking control device performs feedback control of the moving device so that the light beam converged on the recording medium is positioned on the track, based on the tracking error signal. An adjustment device adjusts the correction amount for the phase correction device based on an asymmetry level based on the tracking error signal without causing the tracking control device to perform feedback control.
摘要翻译：光盘装置包括用于以规定的再现速度旋转记录介质的旋转装置。会聚装置将光束会聚在记录介质上。移动装置移动会聚装置，使会聚的光束穿过记录介质的轨迹。光检测装置具有用于接收由记录介质反射的光并分别输出第一，第二，第三和第四检测信号的四个区域。相位校正装置根据校正量分别校正第一和第二检测信号的相位，分别输出第一和第二校正信号。跟踪误差检测装置根据第一和第二相加信号之间的相位差来检测会聚光束与轨道之间的位置偏移，并输出表示位置偏移的跟踪误差信号。通过将第一校正信号和第四检测信号相加来获得第一相加信号。通过将第二校正信号和第三检测信号相加来获得第二加法信号。跟踪控制装置执行移动装置的反馈控制，使得会聚在记录介质上的光束基于跟踪误差信号位于轨道上。调整装置基于跟踪误差信号，基于不对称级别来调整相位校正装置的校正量，而不使跟踪控制装置执行反馈控制。

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