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1. 发明申请

US20160284376A1 OPTICAL DISC APPARATUS AND CONTROL METHOD THEREOF 有权
标题翻译：光盘设备及其控制方法
公开(公告)号：US20160284376A1
公开(公告)日：2016-09-29
申请号：US15078285
申请日：2016-03-23
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Jae Hyun KIM
IPC分类号： G11B7/1392 , G11B21/02 , G11B19/20
CPC分类号： G11B7/13927 , G11B7/0941 , G11B7/0948 , G11B7/0956 , G11B19/2009 , G11B21/02
摘要： An optical disc apparatus is disclosed. The optical disc apparatus includes: a driver configured to rotate an optical disc having a recording surface for data; an optical pick-up configured to emit a light beam to the optical disc rotated by the driver; and at least one processor configured to operate the optical pick-up to focus the light beam emitted from the pick-up unit to perform one of recording and reproducing the data on the recording surface and track curvature of the recording surface within a preset allowable range, and to process the light beam reflected from the recording surface, the at least one the processor further configured to increase the allowable range if it is determined that the focus of the light beam cannot track the curvature of the recording surface in a section of the recording surface.
摘要翻译：公开了一种光盘装置。光盘装置包括：驱动器，被配置为旋转具有用于数据的记录表面的光盘; 光拾取器，被配置为向由所述驾驶员旋转的所述光盘发射光束; 以及至少一个处理器，其被配置为操作所述光学拾取器以聚焦从所述拾取单元发射的光束，以执行在记录表面上记录和再现数据之一以及在预设允许范围内记录所述记录表面的曲率并且处理从记录表面反射的光束，所述至少一个处理器还被配置为如果确定光束的焦点不能跟踪记录表面的一部分中的记录表面的曲率，则增加允许范围记录表面。

2. 发明申请

US20160210996A1 Systems and Methods for Multi-Track Media Defect Detection 有权
标题翻译：多轨道介质缺陷检测系统与方法
公开(公告)号：US20160210996A1
公开(公告)日：2016-07-21
申请号：US14602087
申请日：2015-01-21
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Weijun Tan , Shaohua Yang
IPC分类号： G11B20/18 , G11B20/10 , G11B20/12
CPC分类号： G11B20/1816 , G11B5/012 , G11B7/0037 , G11B7/0948 , G11B7/131 , G11B19/048 , G11B20/10046 , G11B20/1252 , G11B20/1889 , G11B2020/1826
摘要： Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for data processing to identify a defect on a medium.
摘要翻译：用于数据处理的系统，方法，设备，电路，更具体地涉及用于识别介质上的缺陷的数据处理的系统和方法。

3. 发明授权

US09245571B2 Optical disc device, control method thereof, program, and information storage medium 有权
标题翻译：光盘装置，其控制方法，程序和信息存储介质
公开(公告)号：US09245571B2
公开(公告)日：2016-01-26
申请号：US14525567
申请日：2014-10-28
申请人： Sony Computer Entertainment Inc.
发明人： Naoyuki Nishigata
IPC分类号： G11B7/00 , G11B7/085 , G11B7/0045 , G11B7/1392 , G11B7/09
CPC分类号： G11B7/13927 , G11B7/0925 , G11B7/094 , G11B7/0941 , G11B7/0945 , G11B7/0948 , G11B7/1376 , G11B7/1392 , G11B7/13925 , G11B2007/0006
摘要： An optical disc device that reads information recorded in an optical disc medium includes an objective lens that focuses light on the optical disc medium, a spherical aberration correction mechanism that changes an amount of spherical aberration of the objective lens according to a setting value of a predetermined parameter, and an evaluation value measurement section that measures an evaluation value indicating the accuracy of reading of information from the optical disc medium. The optical disc device further includes a control section that executes adjustment processing in which the control section carries out plural times of measurement of the evaluation value by the evaluation value measurement section concurrently with changing the amount of spherical aberration of the objective lens by the spherical aberration correction mechanism and calculates an optimum setting value of the parameter based on plural evaluation values obtained by the plural times of measurement.
摘要翻译：读取记录在光盘介质中的信息的光盘装置包括：将光聚焦到光盘介质上的物镜;球面像差校正机构，用于根据预定的光盘介质的设定值改变物镜的球面像差量; 参数和评估值测量部分，其测量指示从光盘介质读取信息的准确度的评估值。光盘装置还包括执行调整处理的控制部分，其中控制部分通过评估值测量部分同时进行多次测量评估值，同时改变物镜的球面像差量的球面像差校正机构，并且基于通过多次测量获得的多个评估值来计算参数的最佳设定值。

4. 发明申请

US20160019923A1 RESISTIVE TEMPERATURE SENSORS FOR IMPROVED ASPERITY, HEAD-MEDIA SPACING, AND/OR HEAD-MEDIA CONTACT DETECTION 审中-公开
公开(公告)号：US20160019923A1
公开(公告)日：2016-01-21
申请号：US14827603
申请日：2015-08-17
申请人： Seagate Technology LLC
发明人： Manuel Charles Anaya-Dufresne , Brian William Karr , Gary Joseph Kunkel , Zhen Wei
IPC分类号： G11B5/60 , G11B5/024 , G01K13/00
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.

5. 发明授权

US08902722B2 Method and apparatus for determining a location of a feature on a storage medium 有权
标题翻译：用于确定存储介质上的特征的位置的方法和装置
公开(公告)号：US08902722B2
公开(公告)日：2014-12-02
申请号：US14094710
申请日：2013-12-02
申请人： Marvell World Trade Ltd.
发明人： Mats Oberg
IPC分类号： G11B20/18 , G11B7/09
CPC分类号： G11B7/0948 , G11B20/1883 , G11B2220/20
摘要： A counter is configured to generate counts associated with different locations, within a smallest addressable unit of data, on a storage medium of a disk drive. A detector is configured to detect a change in a property of a signal sensed from the storage medium. A controller is configured to: determine a count of the counter corresponding to a location, within a smallest addressable data unit on the storage medium, at which the change in the property of the signal sensed from the storage medium is detected, and change a response of at least one of the detector, a read channel controller of the disk drive, or a servo controller of the disk drive based on (i) the count and (ii) the counter.
摘要翻译：计数器被配置为在磁盘驱动器的存储介质上的数据的最小可寻址单元内生成与不同位置相关联的计数。检测器被配置为检测从存储介质感测的信号的属性的变化。控制器被配置为：在所述存储介质上的最小可寻址数据单元内确定与所述位置对应的计数器的计数，在所述最小可寻址数据单元中检测到从所述存储介质检测到的信号的属性的变化，并且改变响应基于（i）计数器和（ii）计数器，检测器，磁盘驱动器的读通道控制器或磁盘驱动器的伺服控制器中的至少一个。

6. 发明申请

US20140268410A1 RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIA AND ASPERITY DETECTION 审中-公开
标题翻译：电阻温度传感器和平台检测
公开(公告)号：US20140268410A1
公开(公告)日：2014-09-18
申请号：US14287419
申请日：2014-05-27
申请人： Seagate Technology LLC
发明人： Gary Joseph Kunkel , Huazhou Lou , Declan Macken , Timothy William Stoebe
IPC分类号： G11B20/10
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities.
摘要翻译：头传感器的温度传感器测量靠近或接近的温度。测量的温度响应于头部换能器和磁记录介质之间的间隔的变化而变化。检测器耦合到温度传感器并且被配置为检测指示头部换能器和介质之间的接触开始的测量温度的DC分量的变化。另一个头部传感器配置包括传感器，该传感器具有具有高温度系数的传感元件，以与介质的粗糙度相互作用。导电引线连接到感测元件并且具有相对于感测元件的电阻的低温度系数，引线中的这种热感应电阻变化对感测元件与凹凸接触的响应具有可忽略的影响。

7. 发明授权

US08810952B2 Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection 有权
标题翻译：头传感器，具有多个电阻温度传感器，用于头中间距和接触检测
公开(公告)号：US08810952B2
公开(公告)日：2014-08-19
申请号：US13299139
申请日：2011-11-17
申请人： Michael T. Johnson , Dongming Liu , Huazhou Lou , Declan Macken , Timothy W. Stoebe , James G. Wessel , Xuan Zheng
发明人： Michael T. Johnson , Dongming Liu , Huazhou Lou , Declan Macken , Timothy W. Stoebe , James G. Wessel , Xuan Zheng
IPC分类号： G11B21/02
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.
摘要翻译：被配置为与磁记录介质相互作用的头传感器包括具有温度系数电阻（TCR）并被配置为产生第一传感器信号的第一传感器，以及具有TCR并被配置为产生第二传感器信号的第二传感器。第一传感器和第二传感器中的一个位于头部换能器相对于磁记录介质的接近点附近，并且第一传感器和第二传感器中的另一个与近端点间隔开。电路被配置为组合第一和第二传感器信号并产生指示头 - 介质间隔和头 - 介质接触的变化中的一个或两个的组合的传感器信号。每个传感器可以具有相同符号（正或负）的TCR，或者每个传感器可以具有不同符号的TCR。

8. 发明授权

US08619534B2 Apparatus for reading from and/or writing to a near-field optical recording medium 失效
标题翻译：用于从近场光记录介质读取和/或写入的装置
公开(公告)号：US08619534B2
公开(公告)日：2013-12-31
申请号：US13518076
申请日：2010-12-07
申请人： Stephan Knappmann , Frank Przygodda
发明人： Stephan Knappmann , Frank Przygodda
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/0948 , G11B7/1353 , G11B7/1369 , G11B7/1387 , G11B7/13925
摘要： An apparatus for reading from or writing to a near-field optical recording medium capable of detecting tilt and spherical aberration is described. The apparatus comprises a light source for generating a reading light beam, a near-field lens, an aberration compensation element, and a diffractive optical element. The diffractive optical element is switchable between a far-field mode and a near-field mode and is adapted to generate a main light beam and four or more sub-beams from the reading light beam for determining at least a cover layer thickness error signal. For this purpose it has an outer region with a first grating period and an inner region having a diameter smaller than an effective numerical aperture of the near-field lens, which in the near-field mode has a second grating period and which has a switchable inner area having a diameter smaller than a far-field numerical aperture of the near-field lens, which in the far-field mode has the first grating period. The aberration compensation element is adapted to be adjusted based on the thickness error signal when the diffractive optical element is in the near-field mode.
摘要翻译：描述了一种用于读取或写入能够检测倾斜和球面像差的近场光学记录介质的装置。该装置包括用于产生读取光束的光源，近场透镜，像差补偿元件和衍射光学元件。衍射光学元件可以在远场模式和近场模式之间切换，并且适于从读取光束产生主光束和四个或更多个子光束，用于至少确定覆盖层厚度误差信号。为此，它具有具有第一光栅周期的外部区域和具有小于近场透镜的有效数值孔径的直径的内部区域，其在近场模式中具有第二光栅周期并且具有可切换的内部区域的直径小于近场透镜的远场数值孔径，其在远场模式中具有第一光栅周期。当衍射光学元件处于近场模式时，像差补偿元件适于基于厚度误差信号进行调整。

9. 发明申请

US20130003515A1 APPARATUS FOR READING FROM AND/OR WRITING TO A NEAR-FIELD OPTICAL RECORDING MEDIUM 失效
标题翻译：用于从和/或写入近场光记录介质的装置
公开(公告)号：US20130003515A1
公开(公告)日：2013-01-03
申请号：US13518076
申请日：2010-12-07
申请人： Stephan Knappmann , Frank Przygodda
发明人： Stephan Knappmann , Frank Przygodda
IPC分类号： G11B7/1353
CPC分类号： G11B7/0956 , G11B7/0948 , G11B7/1353 , G11B7/1369 , G11B7/1387 , G11B7/13925
摘要： An apparatus for reading from or writing to a near-field optical recording medium capable of detecting tilt and spherical aberration is described. The apparatus comprises a light source for generating a reading light beam, a near-field lens, an aberration compensation element, and a diffractive optical element. The diffractive optical element is switchable between a far-field mode and a near-field mode and is adapted to generate a main light beam and four or more sub-beams from the reading light beam for determining at least a cover layer thickness error signal. For this purpose it has an outer region with a first grating period and an inner region having a diameter smaller than an effective numerical aperture of the near-field lens, which in the near-field mode has a second grating period and which has a switchable inner area having a diameter smaller than a far-field numerical aperture of the near-field lens, which in the far-field mode has the first grating period. The aberration compensation element is adapted to be adjusted based on the thickness error signal when the diffractive optical element is in the near-field mode.
摘要翻译：描述了一种用于读取或写入能够检测倾斜和球面像差的近场光学记录介质的装置。该装置包括用于产生读取光束的光源，近场透镜，像差补偿元件和衍射光学元件。衍射光学元件可以在远场模式和近场模式之间切换，并且适于从读取光束产生主光束和四个或更多个子光束，用于至少确定覆盖层厚度误差信号。为此，它具有具有第一光栅周期的外部区域和具有小于近场透镜的有效数值孔径的直径的内部区域，其在近场模式中具有第二光栅周期并且具有可切换的内部区域的直径小于近场透镜的远场数值孔径，其在远场模式中具有第一光栅周期。当衍射光学元件处于近场模式时，像差补偿元件适于基于厚度误差信号进行调整。

10. 发明授权

US08305703B2 Method and apparatus for determining a location of a defect on a storage medium 有权
标题翻译：用于确定存储介质上的缺陷的位置的方法和装置
公开(公告)号：US08305703B2
公开(公告)日：2012-11-06
申请号：US13189111
申请日：2011-07-22
申请人： Mats Oberg
发明人： Mats Oberg
IPC分类号： G11B5/09
CPC分类号： G11B7/0948 , G11B20/1883 , G11B2220/20
摘要： A defect is detected on a storage medium of a disk drive. A location of the defect is determined, within a smallest addressable unit of data stored on the storage medium. An indication of the location is stored in a memory. A location of a sensor of the disk drive relative to the data stored on the storage medium is monitored. A response of at least one of a defect detector of the disk drive, a read channel controller of the disk drive, and a servo controller of the disk drive is changed based on the location of the sensor relative to the data stored on the storage medium and the stored indication of the location of the defect.
摘要翻译：在磁盘驱动器的存储介质上检测到缺陷。在存储在存储介质上的数据的最小可寻址单元内确定缺陷的位置。位置的指示存储在存储器中。监视磁盘驱动器的传感器相对于存储在存储介质上的数据的位置。基于传感器相对于存储在存储介质上的数据的位置来改变盘驱动器的缺陷检测器，盘驱动器的读通道控制器和盘驱动器的伺服控制器中的至少一个的响应以及存储的缺陷位置的指示。

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