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1.发明授权Optical disk drive with disk type determination and method of determining a disk type of an optical disk with an optical disk drive 有权具有磁盘类型确定的光盘驱动器和用光盘驱动器确定光盘类型的方法公开(公告)号：US07903517B2
公开(公告)日：2011-03-08
申请号：US12099300
申请日：2008-04-08
申请人： Johannes Leopoldus Bakx , Maarten Kuijper , Johannes Franciscus Petrus Claas , Petrus Antonius Verbeek
发明人： Johannes Leopoldus Bakx , Maarten Kuijper , Johannes Franciscus Petrus Claas , Petrus Antonius Verbeek
IPC分类号： G11B7/00
CPC分类号： G11B7/0053 , G11B7/0945 , G11B2007/0006
摘要： An optical disk drive and a method for determining a disk type are described. The optical disk drive may be arranged to receive a radial error signal while an incident beam is focused onto the optical disk and before tracking the track, to analyze the radial error signal for detecting whether a wobble signal is present, indicating whether the track is wobbled, and to derive a disk type from the wobble signal, if present. The optical disk drive may additionally or alternatively be arranged to receive a central aperture signal while the incident beam is focused onto the optical disk and before tracking a track including a sequence of embossed pits, to analyze the signal amplitude of the central aperture signal, and to determine the disk type from at least a first variation of the signal amplitude of the central aperture signal as a function of time.
摘要翻译： 描述了光盘驱动器和用于确定盘类型的方法。 光盘驱动器可以被布置为在入射光束聚焦到光盘上并且在跟踪光道之前接收径向误差信号，以分析用于检测摆动信号是否存在的径向误差信号，指示轨道是否摆动 并且从摆动信号导出磁盘类型（如果存在）。 光盘驱动器可以附加地或替代地布置成接收中心孔径信号，同时入射光束聚焦到光盘上，并且在跟踪包括压花凹坑序列的轨迹之前，分析中心孔径信号的信号幅度，以及 以根据时间的函数从中心孔径信号的信号幅度的至少第一变化来确定盘类型。
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2.发明申请OPTICAL DISK DRIVE WITH DISK TYPE DETERMINATION AND METHOD OF DETERMINING A DISK TYPE OF AN OPTICAL DISK WITH AN OPTICAL DISK DRIVE 有权具有盘型确定的光盘驱动器和用光盘驱动器确定光盘类型的光盘类型的方法公开(公告)号：US20090252010A1
公开(公告)日：2009-10-08
申请号：US12099300
申请日：2008-04-08
申请人： Johannes Leopoldus Bakx , Maarten Kuijper , Johannes Franciscus Claas , Petrus Antonius Verbeek
发明人： Johannes Leopoldus Bakx , Maarten Kuijper , Johannes Franciscus Claas , Petrus Antonius Verbeek
IPC分类号： G11B7/00
CPC分类号： G11B7/0053 , G11B7/0945 , G11B2007/0006
摘要： An optical disk drive and a method for determining a disk type are described. The optical disk drive may be arranged to receive a radial error signal while an incident beam is focused onto the optical disk and before tracking the track, to analyze the radial error signal for detecting whether a wobble signal is present, indicating whether the track is wobbled, and to derive a disk type from the wobble signal, if present. The optical disk drive may additionally or alternatively be arranged to receive a central aperture signal while the incident beam is focused onto the optical disk and before tracking a track including a sequence of embossed pits, to analyze the signal amplitude of the central aperture signal, and to determine the disk type from at least a first variation of the signal amplitude of the central aperture signal as a function of time.
摘要翻译： 描述了光盘驱动器和用于确定盘类型的方法。 光盘驱动器可以被布置为在入射光束聚焦到光盘上并且在跟踪光道之前接收径向误差信号，以分析用于检测摆动信号是否存在的径向误差信号，指示轨道是否摆动 并且从摆动信号导出磁盘类型（如果存在）。 光盘驱动器可以附加地或替代地布置成接收中心孔径信号，同时入射光束聚焦到光盘上，并且在跟踪包括压花凹坑序列的轨迹之前，分析中心孔径信号的信号幅度，以及 以根据时间的函数从中心孔径信号的信号幅度的至少第一变化来确定盘类型。
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3.发明申请Optical Disk Drive and Method for Use with an Optical Disk Drive for Determining the Disk Characteristic 失效光盘驱动器以及用于确定磁盘特性的光盘驱动器的方法公开(公告)号：US20100157761A1
公开(公告)日：2010-06-24
申请号：US12574905
申请日：2009-10-07
IPC分类号： G11B27/36
CPC分类号： G11B20/10009 , G11B19/12 , G11B20/10046 , G11B27/24 , G11B2220/2537
摘要： An optical disk drive for determining a disk characteristic of an optical disk comprising an information layer comprising a substantially circular track is described. The optical disk drive has an optical pickup unit arranged to generate a beam, direct the beam to the optical disk for forming an incident beam, sense a reflected beam produced by the optical disk with a sensor upon receiving the incident beam with the sensor, produce a sensor output signal from sensing the reflected beam; a disk receiving device arranged to receive the optical disk; a motor arranged to provide a transition of the disk receiving device from a first mode to a second mode in at least one transition phase; and a controller arranged to receive the sensor output signal during at least one part of the at least one transition phase and perform at least part of determining the disk characteristic from at least the sensor output signal received during the at least one part of the at least one transition phase. The transition phase can be associated with moving the optical disk into the optical disk drive with a disk load motor. The transition phase can be associated with changing a rotational speed of the optical disk with a spindle motor. Determining the disk characteristic can include a disk recognition preparation.
摘要翻译： 描述了一种用于确定包括基本圆形轨道的信息层的光盘的盘特性的光盘驱动器。 光盘驱动器具有光学拾取单元，其被配置为产生光束，将光束引导到光盘以形成入射光束，在用传感器接收入射光束时用传感器感测由光盘产生的反射光束，产生 来自感测反射光束的传感器输出信号; 盘接收装置，布置成接收光盘; 布置成在至少一个过渡阶段中提供盘接收装置从第一模式转换到第二模式的电动机; 以及控制器，布置成在所述至少一个过渡阶段的至少一个部分期间接收所述传感器输出信号，并且至少从所述至少一个部分至少接收到的所述传感器输出信号执行至少一部分来确定所述磁盘特性 一个过渡阶段。 过渡阶段可以与光盘装载电机将光盘移动到光盘驱动器中相关联。 过渡阶段可以与用主轴电动机改变光盘的转速相关联。 确定磁盘特性可以包括磁盘识别准备。
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4.发明授权Optical disk drive and method for use with an optical disk drive for determining the disk characteristic 失效光盘驱动器以及用于确定磁盘特性的光盘驱动器的方法公开(公告)号：US08059509B2
公开(公告)日：2011-11-15
申请号：US12574905
申请日：2009-10-07
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B19/12 , G11B20/10046 , G11B27/24 , G11B2220/2537
摘要： An optical disk drive for determining a disk characteristic of an optical disk comprising an information layer comprising a substantially circular track is described. The optical disk drive has an optical pickup unit arranged to generate a beam, direct the beam to the optical disk for forming an incident beam, sense a reflected beam produced by the optical disk with a sensor upon receiving the incident beam with the sensor, produce a sensor output signal from sensing the reflected beam; a disk receiving device arranged to receive the optical disk; a motor arranged to provide a transition of the disk receiving device from a first mode to a second mode in at least one transition phase; and a controller arranged to receive the sensor output signal during at least one part of the at least one transition phase and perform at least part of determining the disk characteristic from at least the sensor output signal received during the at least one part of the at least one transition phase. The transition phase can be associated with moving the optical disk into the optical disk drive with a disk load motor. The transition phase can be associated with changing a rotational speed of the optical disk with a spindle motor. Determining the disk characteristic can include a disk recognition preparation.
摘要翻译： 描述了一种用于确定包括基本圆形轨道的信息层的光盘的盘特性的光盘驱动器。 光盘驱动器具有光学拾取单元，其被配置为产生光束，将光束引导到光盘以形成入射光束，在用传感器接收入射光束时用传感器感测由光盘产生的反射光束，产生 来自感测反射光束的传感器输出信号; 盘接收装置，布置成接收光盘; 布置成在至少一个过渡阶段中提供盘接收装置从第一模式转换到第二模式的电动机; 以及控制器，布置成在所述至少一个过渡阶段的至少一个部分期间接收所述传感器输出信号，并且至少从所述至少一个部分至少接收到的所述传感器输出信号执行至少一部分来确定所述磁盘特性 一个过渡阶段。 过渡阶段可以与光盘装载电机将光盘移动到光盘驱动器中相关联。 过渡阶段可以与用主轴电动机改变光盘的转速相关联。 确定磁盘特性可以包括磁盘识别准备。
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公开(公告)号：US20090310453A1
公开(公告)日：2009-12-17
申请号：US12374401
申请日：2007-07-20
IPC分类号： G11B7/12
CPC分类号： G11B7/005 , G11B7/1267
摘要： A method of determining a maximum allowable read power for a drive-record carrier combination is described. The method finds a forward-sense setpoint value to control a light power control loop, by reading data from the record carrier at which degradation of the data occurs. This technique is useful for all optical storage devices such as CD, DVD and Blu-ray players and recorders.
摘要翻译： 描述了确定驱动记录载体组合的最大允许读取功率的方法。 该方法通过从数据发生劣化的记录载体读取数据来找到控制光功率控制回路的正向设定值。 这种技术对于诸如CD，DVD和蓝光播放器和记录器的所有光学存储设备是有用的。
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6.发明授权Optical disk drive for scanning an optical disk with a scanning velocity and method for scanning an optical disk with a scanning velocity 失效用于以扫描速度扫描光盘的光盘驱动器和用于以扫描速度扫描光盘的方法公开(公告)号：US08059501B2
公开(公告)日：2011-11-15
申请号：US12141688
申请日：2008-06-18
IPC分类号： G11B7/00
CPC分类号： G11B7/0953 , G11B7/0946 , G11B7/0956
摘要： An optical disk drive and a method for scanning an optical disk that includes a substantially circular track with a scanning velocity is provided. A servo control signal (SCS) is determined based on a servo error signal (SES). A first performance indicator (IND1) of the servo actuator is determined from at least one of the SES and SCS. IND1 is compared against a first pre-determined threshold (ITHR1), determining a first servo margin (MAR1). The scanning velocity is set in dependence on at least MAR1. In particular, scanning velocity is reduced when the first performance indicator exceeds the first pre-determined threshold. Additionally or alternatively, a bandwidth of control of the servo actuator can be adjusted in dependence on at least one of a second servo margin, determined from at least one of SES and SCS, and a third servo margin, associated with a mark quality determined from a central aperture signal.
摘要翻译： 提供了一种光盘驱动器和用于扫描包括具有扫描速度的大致圆形轨道的光盘的方法。 基于伺服误差信号（SES）来确定伺服控制信号（SCS）。 从SES和SCS中的至少一个确定伺服致动器的第一性能指示器（IND1）。 将IND1与第一预定阈值（ITHR1）进行比较，确定第一伺服余量（MAR1）。 扫描速度根据至少MAR1设定。 特别地，当第一性能指标超过第一预定阈值时，扫描速度降低。 附加地或替代地，伺服致动器的控制带宽可以根据从SES和SCS中的至少一个确定的第二伺服余量和第三伺服余量中的至少一个来调节，第三伺服余量与由 中心孔径信号。
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公开(公告)号：US20100008195A1
公开(公告)日：2010-01-14
申请号：US12499949
申请日：2009-07-09
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/0917 , G11B7/1387
摘要： An optical scanning device is adapted for scanning a record carrier having an outer face. The optical scanning device comprises a radiation source for generating a radiation beam, and an objective system having an exit face arranged for evanescent coupling of the radiation beam between the exit face and the outer face and for converging the radiation beam to a focus. A gap servo maintains a distance between the exit face and the outer face at a predetermined gap height. The optical scanning device includes a control unit for setting the predetermined gap height at at least two different values.
摘要翻译： 光学扫描装置适于扫描具有外表面的记录载体。 光学扫描装置包括用于产生辐射束的辐射源，以及具有出射面的物镜系统，该出射面被布置成用于在出射面和外面之间的辐射束的ev逝耦合，并且用于将辐射束会聚到焦点。 间隙伺服机构以预定的间隙高度保持出口面与外表面之间的距离。 光学扫描装置包括用于以至少两个不同值设定预定间隙高度的控制单元。
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公开(公告)号：US20100226224A1
公开(公告)日：2010-09-09
申请号：US12294261
申请日：2007-03-28
IPC分类号： G11B20/10
CPC分类号： G11B7/1267 , G11B7/005
摘要： The present invention relates to a method of selecting a range of gain values (2000) of a gain-bandwidth limited photo-detector circuit (45) for reading data from a record carrier (104). The method comprises: a) finding a first read power by setting a maximum allowable gain value (gmaχ), the first read power being a minimum read power value at which data is readable from the rotating record carrier at a first speed; and b) finding a second read power and a second gain value, by increasing the first read power value and decreasing the maximum allowable gain value. The second read power being the minimum read power value at which data is readable from the rotating record carrier at a second speed. The method is useful for all kinds of photo-detector circuits in optimizing gain values and achieving optimum performance with the optimum number of gain values.
摘要翻译： 本发明涉及一种选择用于从记录载体（104）读取数据的增益带宽限制光检测器电路（45）的增益值范围（2000）的方法。 该方法包括：a）通过设置最大可允许增益值（gmaχ）来找到第一读取功率，第一读取功率是以第一速度从旋转记录载体读取数据的最小读取功率值; 以及b）通过增加第一读取功率值并减小最大允许增益值来找到第二读取功率和第二增益值。 第二读取功率是数据以第二速度从旋转记录载体读取的最小读取功率值。 该方法对于所有类型的光电检测器电路在优化增益值并以最佳增益值达到最佳性能方面是有用的。
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公开(公告)号：US20090274023A1
公开(公告)日：2009-11-05
申请号：US12305038
申请日：2007-06-25
IPC分类号： G11B7/12
CPC分类号： G11B7/131 , G11B7/0045 , G11B7/0903 , G11B7/0945 , G11B2007/0006
摘要： A method of reducing power dissipation in a variable-gain photo-detector circuit is described. The variable-gain photo-detector circuit has an output to output a main spot signal and at least one side spot signal. The main spot (M) and the side spot (Si or S2) are formed by separating a light beam into a main beam and at least one side beam and focusing the main beam on the main spot (M) and the side beam on at least one side spot (Si or S2) on an optical record carrier The method processes the main spot signal with a first averaging circuit having a first cut-off frequency. The side spot signal is processed with a second averaging circuit having a second cut-off frequency. The second cut-off frequency is lower than the first cut-off frequency. The above technique reduces power dissipation in the variable-gain photo-detector circuit and is useful for all optical devices.
摘要翻译： 描述了一种降低可变增益光电检测器电路中功耗的方法。 可变增益光电检测器电路具有输出以输出主点信号和至少一个侧点信号。 主光点（M）和侧光斑（Si或S2）通过将光束分离成主光束和至少一个侧光束并将主光束聚焦在主光斑（M）和侧光束上而形成 在光学记录载体上的至少一个侧面点（Si或S2）。该方法用具有第一截止频率的第一平均电路处理主要点信号。 侧点信号用具有第二截止频率的第二平均电路进行处理。 第二截止频率低于第一截止频率。 上述技术降低了可变增益光电检测器电路中的功耗，并且对于所有光学器件都是有用的。
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公开(公告)号：US20090225638A1
公开(公告)日：2009-09-10
申请号：US11570534
申请日：2005-06-14
IPC分类号： G11B20/00
CPC分类号： G11B7/0053 , G11B7/00736
摘要： A recording device records marks in a track on a record carrier via a beam of radiation. The record carrier has a preformed track pattern such as a wobbled pregroove having prepits for encoding record carrier information. The device has a head for generating a scanning spot on the track and a front-end unit coupled to the head for generating detector signals based on radiation reflected from the track, the detector signals including a left subdetector signal and a right sub-detector signal. The device has a demodulation unit for retrieving the record carrier information from the detector signals, which includes a radial modulation signal circuit (34). The circuit generates a radial modulation signal (66) based on a difference signal of the sub-detector signals (61,62) normalized by a sum signal of the sub detector signals, and generates the sum signal by adding a correction amount. Thereby overcompensation due to normalization is reduced.
摘要翻译： 记录装置通过辐射束在记录载体上的轨道中记录标记。 记录载体具有预先形成的轨道图案，例如具有编码记录载体信息的预凹坑的摆动预槽。 该装置具有用于在轨道上产生扫描点的头部和耦合到头部的前端单元，用于基于从轨道反射的辐射产生检测器信号，检测器信号包括左副检测器信号和右副检测器信号 。 该装置具有用于从包括径向调制信号电路（34）的检测器信号中检索记录载体信息的解调单元。 该电路基于由子检测器信号的和信号归一化的子检测器信号（61,62）的差分信号，产生径向调制信号（66），并通过加上校正量来产生和信号。 由此，由于归一化而导致的过度补偿减少。
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