-
1.发明授权公开(公告)号：US09087524B2
公开(公告)日：2015-07-21
申请号：US14381243
申请日：2013-01-17
申请人： Sony Corporation
发明人： Yuuichi Suzuki
IPC分类号： G11B7/09
CPC分类号： G11B7/0906 , G11B7/094 , G11B7/0943
摘要： As for a quadruple light receiving unit, in a case where divided regions of A to D as in a DPD scheme is defined, when binarization signals of light reception signals in regions A to D are set as signals A to D, exclusive OR between the signal A without delay and the signal B with delay, exclusive OR between the signal A with delay and the signal C without delay, exclusive OR between the signal B without delay and the signal D with delay, and exclusive OR between the signal B with delay and the signal D without delay are calculated, and a tracking error signal is obtained on the basis of the calculation of ( + )−( + ). Thus, the above problem can be solved.
摘要翻译： 对于四重光接收单元，在定义如DPD方案中的A至D的分割区域的情况下，当区域A至D中的光接收信号的二值化信号被设置为信号A至D时，独占 信号A与延迟之间的信号B与延迟的信号B之间的异或，信号A与延迟之间的异或，信号C无延迟，信号B之间的无延迟和信号D的延迟异或， 并且计算具有延迟的信号B与无延迟的信号D之间的异或，并且基于（<1> + 3） - （<2> + 4）的计算获得跟踪误差信号 ）。 因此，可以解决上述问题。
-
公开(公告)号：US08879372B1
公开(公告)日：2014-11-04
申请号：US14157166
申请日：2014-01-16
发明人： Christopher Painter , Jin Xie
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。
-
公开(公告)号：US08830803B2
公开(公告)日：2014-09-09
申请号：US12853523
申请日：2010-08-10
CPC分类号： G11B7/0906 , G11B7/08511 , G11B7/0903 , G11B7/0956 , G11B20/10009 , G11B20/10527 , G11B2007/0013
摘要： An optical drive apparatus that reproduces an optical disk having a land and a groove, the optical drive apparatus including a first tracking-error-signal generating unit that generates a first tracking error signal by using a DPD method, a second tracking-error-signal generating unit that generates a second tracking error signal by using a DPP method, a tracking servo unit that controls the optical system, and a determining unit that determines that an irradiation point of an optical beam is in a non-recorded area. The tracking servo unit switches over to a control based on the second tracking error signal in response to a result of determination by the determining unit during performing a control based on the first tracking error signal.
摘要翻译： 一种再现具有平台和凹槽的光盘的光驱动装置，所述光驱动装置包括通过使用DPD方法产生第一跟踪误差信号的第一跟踪误差信号产生单元，第二跟踪误差信号 生成单元，其通过使用DPP方法产生第二跟踪误差信号，控制光学系统的跟踪伺服单元以及确定光束的照射点在非记录区域中的确定单元。 响应于在执行基于第一跟踪误差信号的控制期间由确定单元确定的结果，跟踪伺服单元基于第二跟踪误差信号切换到控制。
-
公开(公告)号：US08693302B2
公开(公告)日：2014-04-08
申请号：US12449906
申请日：2008-02-18
申请人： Joachim Knittel
发明人： Joachim Knittel
CPC分类号： G11B7/24085 , G11B7/0901 , G11B7/0906 , G11B7/24 , G11B7/24079
摘要： The present invention relates to a format of a recordable optical recording medium, which is designed in such a way that it can be read by any standard player and recorder. The optical recording medium has a recording layer with a structure of lands and grooves, which generates a strong push-pull signal in an area of the recording layer without recorded marks and a small push-pull signal in an area of the recording layer with recorded marks.
摘要翻译： 本发明涉及可记录光学记录介质的格式，其被设计成可以由任何标准的播放器和记录器读取。 该光记录介质具有一记录层和一凹槽结构的记录层，该记录层在记录层的区域中产生强的推挽信号而没有记录标记，并且在记录层的区域中产生较小的推挽信号 分数。
-
公开(公告)号：US20130176840A1
公开(公告)日：2013-07-11
申请号：US13779802
申请日：2013-02-28
申请人： Hiromi Kita , Tomoto Kawamura , Toshiteru Nakamura
发明人： Hiromi Kita , Tomoto Kawamura , Toshiteru Nakamura
IPC分类号： G11B21/10
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。
-
公开(公告)号：US08427911B2
公开(公告)日：2013-04-23
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
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。
-
公开(公告)号：US08406109B2
公开(公告)日：2013-03-26
申请号：US13527345
申请日：2012-06-19
申请人： Satoru Fukumoto , Shinzoh Murakami
发明人： Satoru Fukumoto , Shinzoh Murakami
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/0906 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup apparatus is provided. Segmented regions included in a focus diffraction region includes focus segmented regions corresponding in number with different light emitted by a light source. Different focus segmented regions are arranged adjacent to each other alternately in a direction perpendicular to a parallel dividing line. Segmented regions included in a tracking diffraction region includes tracking segmented regions corresponding in number with different light emitted by the light source. Different tracking segmented regions are arranged adjacent to each other alternately in a direction perpendicular to the parallel dividing line.
摘要翻译： 提供一种光拾取装置。 包括在聚焦衍射区域中的分割区域包括与由光源发射的不同光线对应的聚焦分割区域。 不同的焦点分割区域在垂直于平行分割线的方向上交替地布置。 包括在跟踪衍射区域中的分段区域包括对应于由光源发射的不同光的数量的跟踪分割区域。 不同的跟踪分割区域在垂直于平行分割线的方向交替地布置。
-
8.发明授权公开(公告)号：US08351311B2
公开(公告)日：2013-01-08
申请号：US13094569
申请日：2011-04-26
申请人： Toshiya Matsuda , Hiroshi Ide
发明人： Toshiya Matsuda , Hiroshi Ide
IPC分类号： G11B7/00
CPC分类号： G11B7/0943 , G11B7/0053 , G11B7/0903 , G11B7/0906 , G11B20/10009 , G11B20/18 , G11B2007/0006 , G11B2020/1239 , G11B2220/2541
摘要： The present invention achieves higher precision and lower power consumption by reducing semiconductor chip occupation area. A semiconductor integrated circuit which can be mounted on an optical disk device has: a wobble signal generating circuit capable of receiving first, second, third, and fourth light reception output signals A, B, C, and D of a light receiving element in an optical pickup and detecting a wobble in a recordable disk; a differential phase detection signal (DPD) generating circuit for tracking an unrecordable disk; and two A/D converters and an arithmetic circuit. The first, second, third, and fourth light reception output signals are selectively supplied to the two A/D converters, the arithmetic circuit in a first operation mode generates a first addition output signal of A and C and a second addition output signal of B and D, the DPD generating circuit generates a digital phase comparison signal, the arithmetic circuit in a second operation mode generates a third addition output signal of A and D and a fourth addition output signal of B and C, and the wobble signal generating circuit generates a digital wobble signal.
摘要翻译： 本发明通过减少半导体芯片的占用面积来实现更高的精度和更低的功耗。 可以安装在光盘装置上的半导体集成电路具有：摆动信号发生电路，其能够接收光接收元件的第一，第二，第三和第四光接收输出信号A，B，C和D 光拾取器和检测可记录盘中的摆动; 用于跟踪不可记录盘的差分相位检测信号（DPD）产生电路; 和两个A / D转换器和一个运算电路。 第一，第二，第三和第四光接收输出信号被选择性地提供给两个A / D转换器，运算电路在第一操作模式中产生A和C的第一相加输出信号和B的第二相加输出信号 和D，DPD发生电路产生数字相位比较信号，第二运行模式中的运算电路产生A和D的第三相加输出信号和B和C的第四加法输出信号，并且摆动信号产生电路产生 数字摆频信号。
-
9.发明申请RECORDING ADJUSTING METHOD, INFORMATION RECORDING AND REPRODUCING DEVICE, AND INFORMATION RECORDING MEDIUM 有权记录调整方法，信息记录和再现装置以及信息记录介质公开(公告)号：US20120243392A1
公开(公告)日：2012-09-27
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： G11B27/36
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。
-
公开(公告)号：US08270281B2
公开(公告)日：2012-09-18
申请号：US12956135
申请日：2010-11-30
CPC分类号： G11B7/1365 , G11B7/0906 , G11B7/0912 , G11B7/0916 , G11B7/0943 , G11B7/1353 , G11B7/13925
摘要： According to the present invention, of all beams of light reflected from the optical disc, only light in a peripheral region excluding a push-pull region is used to generate a DPD signal. In this method of signal generation that optimizes internal light-receiving surface interconnections in a photodetector, the lens error signal required for the generation of a tracking error signal in the DPP scheme is amplified at a lower amplification factor. In addition, the light reflected from the multilayered optical disc will be divided into a plurality of regions and the divided beam of light will be focused at different positions on the photodetector. When the beam is focused upon a desired layer, stray light from recording layers other than those to be subjected to information reproduction will not enter the photodetector light-receiving surfaces used for servo signals.
摘要翻译： 根据本发明，从光盘反射的所有光束中，仅使用除了推挽区域以外的周边区域的光来产生DPD信号。 在这种优化光电检测器内的光接收表面互连的信号产生方法中，DPP方案中产生跟踪误差信号所需的透镜误差信号以较低的放大系数被放大。 此外，从多层光盘反射的光将被划分为多个区域，并且分割的光束将聚焦在光电检测器上的不同位置。 当光束聚焦在期望的层上时，来自记录层的杂散光不会进行信息再现，不会进入用于伺服信号的光电检测器光接收表面。
-
-
-
-
-
-
-
-
-
搜索结果
372 条记录 (耗时 0.029 秒)
