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71. 发明授权

US08503276B2 Optical disk drive and method for determining type of a blu-ray disk 有权
标题翻译：用于确定蓝光盘类型的光盘驱动器和方法
公开(公告)号：US08503276B2
公开(公告)日：2013-08-06
申请号：US12873529
申请日：2010-09-01
申请人： Kuo-Ting Hsin , Chi-Pei Huang , Chao-Ming Huang
发明人： Kuo-Ting Hsin , Chi-Pei Huang , Chao-Ming Huang
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/00736 , G11B7/0903 , G11B7/0906 , G11B2007/0013
摘要： The invention provides a method for determining the layer type of a blu-ray disk. First, a laser beam is focused on a target layer of the blu-ray disk. Reflection of the laser beam from the target layer is the detected to obtain a reflection signal. The reflection signal is then processed to generate a first tracking error signal and a second tracking error signal. Magnitudes of the first tracking error signal and the second tracking error signal are then measured. The magnitude of the second tracking error signal is then subtracted from the magnitude of the first tracking error signal to obtain a difference value. Finally, the layer type of the target layer is determined by comparing the difference value with the first predetermined threshold.
摘要翻译：本发明提供了一种用于确定蓝光盘的层类型的方法。首先，将激光束聚焦在蓝光盘的目标层上。检测来自目标层的激光束的反射以获得反射信号。然后处理反射信号以产生第一跟踪误差信号和第二跟踪误差信号。然后测量第一跟踪误差信号和第二跟踪误差信号的幅度。然后从第一跟踪误差信号的幅度中减去第二跟踪误差信号的大小以获得差值。最后，通过将差值与第一预定阈值进行比较来确定目标层的层类型。

72. 发明授权

US08456974B2 Recording adjusting method, information recording and reproducing device, and information recording medium 有权
标题翻译：记录调整方法，信息记录再现装置和信息记录介质
公开(公告)号：US08456974B2
公开(公告)日：2013-06-04
申请号：US13334215
申请日：2011-12-22
申请人： Soichiro Eto , Takahiro Kurokawa
发明人： Soichiro Eto , Takahiro Kurokawa
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0906 , G11B7/24038 , G11B2007/0013
摘要： The present invention achieves tracking servo using a recording signal on a grooveless optical disc. Trial writing signals are written by using multiple recording conditions, and a recommended recording condition having favorable qualities of a reproduction signal and a tracking error signal is determined based on the trial writing signals. Then, recording is performed by using the recommended recording condition. In addition, by using a recording condition determined based on an optimum power control performed prior to the recording, signals are recorded adjacent to each other in at least two tracks. Signals are recorded by using the determined recording condition under which a tracking error signal quality obtained from the recording signal matches a desired value of a tracking error signal quality of the medium.
摘要翻译：本发明使用无槽光盘上的记录信号实现跟踪伺服。通过使用多个记录条件来写入试写信号，并且基于试写信号来确定具有良好的再现信号和跟踪误差信号质量的推荐记录条件。然后，使用推荐的记录条件进行记录。此外，通过使用基于在记录之前执行的最佳功率控制确定的记录条件，在至少两个轨道中彼此相邻地记录信号。通过使用确定的记录条件来记录信号，根据该记录条件，从记录信号获得的跟踪误差信号质量与介质的跟踪误差信号质量的期望值相匹配。

73. 发明授权

US08391124B2 Optical drive 有权
标题翻译：光驱
公开(公告)号：US08391124B2
公开(公告)日：2013-03-05
申请号：US13201665
申请日：2010-12-17
申请人： Hiroshi Kayama , Kazuo Momoo
发明人： Hiroshi Kayama , Kazuo Momoo
IPC分类号： G11B7/00
CPC分类号： G11B7/24085 , G11B7/0045 , G11B7/0906 , G11B7/1267
摘要： An optical drive according to the present invention can write information on an optical disc, which includes a substrate on which a number of pre-pits (2) have been formed on its tracks (t1 to t8) and a recording film that is supported on the substrate. The optical drive includes an optical pickup, and a writing control section for controlling the optical pickup so that marks (3a, 3b) are recorded on the tracks (t1 to t8) so as to overlap with some of the pre-pits (2) and for making the optical pickup irradiate the recording film with a writing light beam. The recorded marks (3a, 3b) overlap with at least ten of the pre-pits (2).
摘要翻译：根据本发明的光盘驱动器可以在光盘上写入信息，该光盘包括在其轨道（t1至t8）上已经形成有多个预凹坑（2）的基板和支撑在其上的记录膜底物。光驱包括光拾取器和用于控制光拾取器的写入控制部分，使得标记（3a，3b）被记录在轨道（t1至t8）上，以便与一些预凹坑（2）重叠，并且用于使光学拾取器用写入光束照射记录膜。记录标记（3a，3b）与至少十个预凹坑（2）重叠。

74. 发明申请

US20120300602A1 OPTICAL INFORMATION PROCESSING DEVICE AND TRACKING CONTROL METHOD THEREOF 失效
标题翻译：光信息处理装置及其跟踪控制方法
公开(公告)号：US20120300602A1
公开(公告)日：2012-11-29
申请号：US13478199
申请日：2012-05-23
申请人： Kunikazu OHNISHI
发明人： Kunikazu OHNISHI
IPC分类号： G11B7/09
CPC分类号： G11B7/0903 , G11B7/0906 , G11B7/0938 , G11B7/2405 , G11B2007/0013
摘要： An optical information device used with a grooveless multilayer disc including multiple recording layers used to record and reproduce information signals and a guide layer dedicated to detect tracking error signals (TES) can always stably detect the TESs when the distance between the recording layer and guide layer varies due to selection of a target recording layer. For example, a plurality of light spots for detecting the TESs are formed by a holographic grating on the guide layer, but are defocused with respect to each other. The TESs are detected individually from the respective light spots. The TESs are subjected to an addition operation to be a signal for tracking control, thereby extraordinary increasing the defocus dynamic range of the TESs.
摘要翻译：与包括用于记录和再现信息信号的多个记录层的无槽多层盘一起使用的光学信息装置和专用于检测跟踪误差信号（TES）的引导层可以在记录层和引导层之间的距离时始终稳定地检测TES 由于目标记录层的选择而变化。例如，用于检测TES的多个光点由引导层上的全息光栅形成，但彼此散焦。从相应的光点分别检测TES。将TES作为追加控制的信号进行加法运算，从而非常增加TES的散焦动态范围。

75. 发明授权

US08111596B2 Phase error detection apparatus 有权
标题翻译：相位误差检测装置
公开(公告)号：US08111596B2
公开(公告)日：2012-02-07
申请号：US11916401
申请日：2006-05-30
申请人： Mitsuru Sakai , Yoshihiro Kanda , Takashige Hiratsuka
发明人： Mitsuru Sakai , Yoshihiro Kanda , Takashige Hiratsuka
IPC分类号： G11B7/09
CPC分类号： G11B7/0948 , G11B7/0906 , G11B7/094
摘要： A phase error detection apparatus capable of performing offset correction of a tracking error signal accurately even when there is a defect or a non-recorded position on an optical disc. There are provided a phase difference detection circuit (107) which receives two sequences of digital signals, performs phase comparison using a distance between zerocross points of the two sequences of digital signals, and outputs a phase comparison result PCR and a phase comparison completion signal PCC, and an offset control circuit (11) which outputs an offset correction amount for each phase comparison completion signal PCC from the phase difference detection circuit (107), and the offset correction amount Δα is added to the phase comparison result PCR to avoid offset correction in a position where phase comparison is not carried out.
摘要翻译：一种相位误差检测装置，即使在光盘上存在缺陷或非记录位置，也能够精确地进行跟踪误差信号的偏移校正。提供了一个接收两个数字信号序列的相位差检测电路（107），使用两个数字信号序列的零交点之间的距离进行相位比较，并输出相位比较结果PCR和相位比较完成信号PCC 以及从相位差检测电路（107）输出每个相位比较完成信号PCC的偏移校正量的偏移控制电路（11），并将偏移校正量＆amp;αgr加到相位比较结果PCR中以避免在不执行相位比较的位置的偏移校正。

76. 发明授权

US08107329B1 Optical storage system having differential phase detector 有权
标题翻译：具有差分相位检测器的光存储系统
公开(公告)号：US08107329B1
公开(公告)日：2012-01-31
申请号：US12168594
申请日：2008-07-07
申请人： Christopher Painter , Jin Xie
发明人： Christopher Painter , Jin Xie
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/0906 , G11B20/10009 , G11B20/10037 , G11B20/10222 , G11B2220/2562
摘要： A differential phase detector for an optical storage system is set forth. The differential phase detector includes a photodetector circuit arranged to detect light deviations associated with radial errors in the optical storage system. A non-linear equalizer is in communication with the photodetector circuit. The output of the non-linear equalizer is in communication with signal processing circuitry. The signal processing circuitry uses the equalized signals to generate one or more radial error signals.
摘要翻译：提出了一种用于光学存储系统的差分相位检测器。差分相位检测器包括光检测器电路，其布置成检测与光存储系统中的径向误差相关联的光偏差。非线性均衡器与光电检测器电路连通。非线性均衡器的输出与信号处理电路通信。信号处理电路使用均衡信号来产生一个或多个径向误差信号。

77. 再颁专利

USRE43105E1 Tracking error detection method and optical disc reproduction apparatus using the same 有权
标题翻译：跟踪误差检测方法和使用其的光盘再现装置
公开(公告)号：USRE43105E1
公开(公告)日：2012-01-17
申请号：US13064303
申请日：2011-03-17
申请人： Takahiro Kurokawa , Harukazu Miyamoto
发明人： Takahiro Kurokawa , Harukazu Miyamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/0906
摘要： An object of the present invention is to improve a conventional DPD method having a problem that a tracking servo becomes unstable due to a reduction in the accuracy of detecting a phase difference between short mark signals at an edge, in a case where the amplitudes of the short mark signals are very small, or where a readout signal contains large noise. To this end, the present invention provides a method for increasing the contribution ratio of long mark signals to generate a tracking error signal by causing a phase difference pulse to include information on a phase difference, and by causing the area of the pulse to be weighted according to the length of a mark/space adjacent to a concerned edge.
摘要翻译：本发明的一个目的是改进传统的DPD方法，其中由于在检测边缘上的短标记信号之间的相位差的精度降低时跟踪伺服变得不稳定的问题，短标记信号非常小，或者读出信号包含大的噪声。为此，本发明提供了一种通过使相位差脉冲包括关于相位差的信息并且通过使得脉冲的面积被加权来增加长标记信号的贡献率以产生跟踪误差信号的方法根据与相关边缘相邻的标记/空间的长度。

78. 发明申请

US20110182159A1 OPTICAL PICKUP 失效
公开(公告)号：US20110182159A1
公开(公告)日：2011-07-28
申请号：US12956155
申请日：2010-11-30
申请人： Hiromi KITA , Tomoto Kawamura , Toshiteru Nakamura
发明人： Hiromi KITA , Tomoto Kawamura , Toshiteru Nakamura
IPC分类号： G11B7/135
CPC分类号： G11B21/106 , G11B7/0906 , G11B7/0916 , G11B7/131 , G11B7/1353 , G11B2007/0013
摘要： An optical pickup includes a light source, an objective lens, a diffraction grating that divides an optical beam reflected from a predetermined information layer, into a plurality of optical beams, and a detector having a plurality of photo-receivers to receive a plurality of optical beams. The diffraction grating has a predetermined region for dividing from a signal light beam a region including a central portion of a spot which the signal light beam will form on the diffraction grating. A distance from a central section of the detector to that of a spot center photo-receiver on the detector, the spot center photo-receiver being provided to receive the optical beams formed by division in a predetermined region of the diffraction grating, is equal to or greater than a spot radius of the unwanted light beams entering the predetermined region of the diffraction grating, on the detector.
摘要翻译：光拾取器包括光源，物镜，将从预定信息层反射的光束划分成多个光束的衍射光栅，以及具有多个光接收器的检测器，以接收多个光学梁。衍射光栅具有用于从信号光束分离包括信号光束将在衍射光栅上形成的点的中心部分的区域的预定区域。从检测器的中心部分到检测器上的光点中心光电接收器的距离，被设置成接收由衍射光栅的预定区域划分的光束的光点中心光电接收器等于或大于在检测器上进入衍射光栅的预定区域的不想要的光束的光点半径。

79. 发明申请

US20110158070A1 Optical Disk Drive and Method for Determining Type of a Blu-Ray Disk 有权
标题翻译：光盘驱动器和确定蓝光盘类型的方法
公开(公告)号：US20110158070A1
公开(公告)日：2011-06-30
申请号：US12873529
申请日：2010-09-01
申请人： Kuo-Ting Hsin , Chi-Pei Huang , Chao-Ming Huang
发明人： Kuo-Ting Hsin , Chi-Pei Huang , Chao-Ming Huang
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/00736 , G11B7/0903 , G11B7/0906 , G11B2007/0013
摘要： The invention provides a method for determining the layer type of a blu-ray disk. First, a laser beam is focused on a target layer of the blu-ray disk. Reflection of the laser beam from the target layer is the detected to obtain a reflection signal. The reflection signal is then processed to generate a first tracking error signal and a second tracking error signal. Magnitudes of the first tracking error signal and the second tracking error signal are then measured. The magnitude of the second tracking error signal is then subtracted from the magnitude of the first tracking error signal to obtain a difference value. Finally, the layer type of the target layer is determined by comparing the difference value with the first predetermined threshold.
摘要翻译：本发明提供了一种用于确定蓝光盘的层类型的方法。首先，将激光束聚焦在蓝光盘的目标层上。检测来自目标层的激光束的反射以获得反射信号。然后处理反射信号以产生第一跟踪误差信号和第二跟踪误差信号。然后测量第一跟踪误差信号和第二跟踪误差信号的幅度。然后从第一跟踪误差信号的幅度中减去第二跟踪误差信号的大小以获得差值。最后，通过将差值与第一预定阈值进行比较来确定目标层的层类型。

80. 发明申请

US20110069597A1 OPTICAL HEAD APPARATUS, HOLOGRAPHIC OPTICAL DEVICE, OPTICAL INTEGRATED DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTION METHOD 审中-公开
标题翻译：光学头装置，全息光学装置，光学集成装置，光信息处理装置和信号检测方法
公开(公告)号：US20110069597A1
公开(公告)日：2011-03-24
申请号：US12935398
申请日：2010-03-18
申请人： Hiroaki Yamamoto , Jun-iti Asada
发明人： Hiroaki Yamamoto , Jun-iti Asada
IPC分类号： G11B7/00 , G02B5/32
CPC分类号： G11B7/1353 , G11B7/0906 , G11B7/0909 , G11B7/0943
摘要： An optical head apparatus including a holographic optical device which diffracts a light beam and includes a first diffraction region and a second diffraction region facing each other across a region dividing line passing through an optical axis of a light-collection optical system and extending in a radial direction of an optical disc, the first diffraction region having a grating pattern for generating diffracted light having a first wavefront and entering a first photoreception region and a second photoreception region, the second diffraction region having a grating pattern for generating diffracted light having a second wavefront and entering a third photoreception region and a fourth photoreception region, the first and second wavefronts having first and second coma aberrations in the radial direction of the optical disc, respectively, and the first and second coma aberrations having axes located off the optical axis.
摘要翻译：一种光学头装置，包括衍射光束并包括第一衍射区域和第二衍射区域的全息光学装置，所述第一衍射区域和第二衍射区域跨越通过光收集光学系统的光轴并沿径向延伸的区域划分线所述第一衍射区域具有用于产生具有第一波前并进入第一光接收区域和第二光接收区域的衍射光的光栅图案，所述第二衍射区域具有用于产生具有第二波前的衍射光的光栅图案并且进入第三光接收区域和第四光接收区域，所述第一和第二波前分别在所述光盘的径向方向上具有第一和第二彗形像差，并且所述第一和第二彗形像差具有位于所述光轴的轴线。

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