专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20130279039A1 SERVO PATTERN BY MICROWAVE ASSISTED MAGNETIC RECORDING, PERPENDICULAR MAGNETIC RECORDING MEDIUM, MAGNETIC STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：伺服图案通过微波辅助磁记录，全息磁记录介质，磁存储装置及其制造方法
公开(公告)号：US20130279039A1
公开(公告)日：2013-10-24
申请号：US13867362
申请日：2013-04-22
申请人： HITACHI , LTD.
发明人： Yoshihiro SHIROISHI
IPC分类号： G11B20/12
CPC分类号： G11B20/1217 , G11B5/012 , G11B5/59633 , G11B5/59638 , G11B5/59655 , G11B5/59661 , G11B5/6011 , G11B5/607 , G11B21/21 , G11B2005/0024 , G11B2020/1281 , G11B2020/1284 , G11B2220/2516
摘要： Disclosed is a technique of providing a perpendicular magnetic recording medium in which high-quality servo information enabling high-density recording of 500 kTPI or more is recorded, and a magnetic storage device of an adaptive track formatting type having large capacity, high reliability and high performance with high device manufacturing yield. At a servo area of the perpendicular magnetic recording medium, a servo sequence such as a burst pattern for positioning in a servo track is recorded in a seamless manner without big recording footprint (several times longer than the servo bit) and in a magnetization pattern such that a total amount of the recording magnetization is substantially zero.
摘要翻译：公开了一种提供垂直磁记录介质的技术，其中记录了能够进行500kTPI以上的高密度记录的高质量伺服信息，以及具有大容量，高可靠性和高的自适应轨道格式化的磁存储装置性能高，器件制造成品率高。在垂直磁记录介质的伺服区域，无缝地记录诸如用于定位在伺服磁道中的脉冲串模式的伺服序列，而没有大的记录占位（比伺服位数倍）记录磁化的总量基本为零。

2. 发明授权

US08363347B2 Storage device and information correction method 有权
标题翻译：存储设备和信息校正方法
公开(公告)号：US08363347B2
公开(公告)日：2013-01-29
申请号：US13224689
申请日：2011-09-02
申请人： Yoshinari Higashino , Hideo Sado
发明人： Yoshinari Higashino , Hideo Sado
IPC分类号： G11B21/02 , G11B7/00
CPC分类号： G11B20/1217 , G11B5/59661 , G11B2020/1238 , G11B2020/1284 , G11B2220/2516
摘要： An information correcting method includes: detecting a first pattern in a radial direction and a second pattern formed obliquely to the radial direction on a track traversing the first and second patterns; counting number of the first pattern until the count value reaches number of the first pattern in one round of the track; generating a value incremented up number of the second pattern in the one round every time an interrupt associated with detection of the second pattern is generated as number of the second pattern; calculating an ideal number from a value obtained by multiplying the number of the second pattern until the number is counted by the counted number of the detected first pattern and a number set to the second pattern with reference to the second pattern formed at a present initial position; and correcting the generated number with the ideal number.
摘要翻译：一种信息校正方法，包括：检测在径向上的第一图案和沿着径向方向倾斜形成的第二图案，该轨迹穿过第一和第二图案; 计数第一图案的数量，直到计数值达到一轮轨迹中第一图案的数量; 每当与第二图案的检测相关联的中断被生成作为第二图案的数量时，在一轮中产生第二图案的递增数值; 从通过将第二图案的数量乘以通过相对于在当前初始位置形成的第二图案而设置为第二图案的所计数的所检测到的第一图案的数量而计数所获得的值的值来计算理想数值 ; 并用理想数字校正生成的数字。

3. 发明申请

US20120155238A1 STORAGE DEVICE AND INFORMATION CORRECTION METHOD 有权
标题翻译：存储设备和信息校正方法
公开(公告)号：US20120155238A1
公开(公告)日：2012-06-21
申请号：US13224689
申请日：2011-09-02
申请人： Yoshinari Higashino , Hideo Sado
发明人： Yoshinari Higashino , Hideo Sado
IPC分类号： G11B20/18
CPC分类号： G11B20/1217 , G11B5/59661 , G11B2020/1238 , G11B2020/1284 , G11B2220/2516
摘要： An information correcting method includes: detecting a first pattern in a radial direction and a second pattern formed obliquely to the radial direction on a track traversing the first and second patterns; counting number of the first pattern until the count value reaches number of the first pattern in one round of the track; generating a value incremented up number of the second pattern in the one round every time an interrupt associated with detection of the second pattern is generated as number of the second pattern; calculating an ideal number from a value obtained by multiplying the number of the second pattern until the number is counted by the counted number of the detected first pattern and a number set to the second pattern with reference to the second pattern formed at a present initial position; and correcting the generated number with the ideal number.
摘要翻译：一种信息校正方法，包括：检测在径向上的第一图案和沿着径向方向倾斜形成的第二图案，该轨迹穿过第一和第二图案; 计数第一图案的数量，直到计数值达到一轮轨迹中第一图案的数量; 每当与第二图案的检测相关联的中断被生成作为第二图案的数量时，在一轮中产生第二图案的递增数值; 从通过将第二图案的数量乘以通过相对于在当前初始位置形成的第二图案而设置为第二图案的所计数的所检测到的第一图案的数量而计数所获得的值的值来计算理想数值 ; 并用理想数字校正生成的数字。

4. 发明授权

US08161351B2 Systems and methods for efficient data storage 有权
公开(公告)号：US08161351B2
公开(公告)日：2012-04-17
申请号：US12750654
申请日：2010-03-30
申请人： Ming Jin , Shaohua Yang
发明人： Ming Jin , Shaohua Yang
IPC分类号： H03M13/00
CPC分类号： G11B20/1217 , G11B5/59655 , G11B2020/1222 , G11B2020/1232 , G11B2020/1284 , G11B2020/1289 , G11B2020/1292 , G11B2020/185 , G11B2220/2516
摘要： Various embodiments of the present invention provide systems and methods for preparing and accessing super sector data sets. As an example, a data storage system including a storage medium is disclosed. The storage medium includes a first servo data region and a second servo data region separated by a user data region. The user data region includes at least a portion of a first codeword and a portion of a second codeword that are together associated with a common header data.

5. 发明申请

US20110002061A1 CIRCUIT AND METHOD FOR DETECTING THE PHASE OF A SERVO SIGNAL 有权
标题翻译：用于检测伺服信号相位的电路和方法
公开(公告)号：US20110002061A1
公开(公告)日：2011-01-06
申请号：US12882917
申请日：2010-09-15
申请人： Hakan OZDEMIR
发明人： Hakan OZDEMIR
IPC分类号： G11B27/36
CPC分类号： H03M7/16 , G11B20/10009 , G11B20/10055 , G11B20/10175 , G11B20/10222 , G11B20/10296 , G11B20/1403 , G11B20/18 , G11B2020/1282 , G11B2020/1284 , G11B2020/1484 , G11B2020/1859 , G11B2020/1863 , H03M13/41 , H03M13/6343
摘要： A detector recovers servo data from a servo signal generated by a read-write head, and determines the head-connection polarity from the recovered servo data. Such a detector allows a servo circuit to compensate for a reversed-connected read-write head, and thus allows a manufacturer to forego time-consuming and costly testing to determine whether the head is correctly connected to the servo circuit.
摘要翻译：检测器从由读写头产生的伺服信号中恢复伺服数据，并根据恢复的伺服数据确定磁头连接极性。这种检测器允许伺服电路补偿反连接的读写头，并且因此允许制造商放弃耗时和昂贵的测试来确定磁头是否正确地连接到伺服电路。

6. 发明授权

US07672071B2 Servo field preamble detector and methods for use therewith 失效
标题翻译：伺服场前同步码检测器及其使用方法
公开(公告)号：US07672071B2
公开(公告)日：2010-03-02
申请号：US11513686
申请日：2006-08-30
申请人： King Wai Thomas Lau
发明人： King Wai Thomas Lau
IPC分类号： G11B5/09 , G11B20/10 , G11B5/02 , G11B21/02
CPC分类号： G11B20/14 , G11B5/59688 , G11B20/10 , G11B20/10037 , G11B20/10074 , G11B20/10175 , G11B20/10314 , G11B20/1217 , G11B2020/10916 , G11B2020/1281 , G11B2020/1284 , G11B2020/1484 , G11B2220/2516
摘要： A servo field preamble detector includes an upsampling module that generates a plurality of upsampled read samples by upsampling a read signal by an upsampling factor. An interpolation filter module generates a plurality of interpolated read samples from the plurality of upsampled read samples. A peak detection module identifies a plurality of peak samples from the plurality of interpolated read samples. A magnitude estimation module generates a magnitude estimation signal from the plurality of peak samples. A comparison module compares the magnitude estimation signal to a magnitude threshold and asserts a servo preamble detection signal when the magnitude estimation signal compares favorably to the magnitude threshold.
摘要翻译：伺服场前同步码检测器包括上采样模块，该上采样模块通过上采样因子对读信号进行上采样来产生多个上采样读取采样。内插滤波器模块从多个上采样的读取样本生成多个内插读取样本。峰值检测模块识别来自多个内插读取采样的多个峰值采样。幅度估计模块从多个峰值样本生成幅度估计信号。比较模块将幅度估计信号与幅度阈值进行比较，并且当幅度估计信号与幅度阈值相比较时，确定伺服前导码检测信号。

7. 发明申请

US20090244751A1 TRACK ERROR MEASUREMENT AND RECOVERY 失效
标题翻译：跟踪误差测量和恢复
公开(公告)号：US20090244751A1
公开(公告)日：2009-10-01
申请号：US12059709
申请日：2008-03-31
申请人： Anton Gerasimov
发明人： Anton Gerasimov
IPC分类号： G11B27/36
CPC分类号： G11B5/59688 , G11B5/59655 , G11B5/59666 , G11B20/1816 , G11B2020/1284 , G11B2220/2516
摘要： A method of measuring a track value is shown. The track value is related to track mis-registration, and is compared to a track value limit to assess a condition of the track. In example embodiments, the track value is determined as a function of multiple position error signals from previous wedges in the track. During a self servo writing operation, the track value and the track value limit are used to selectively perform a recovery action. In example embodiments, the track value limit is dynamically adjusted.
摘要翻译：示出了测量轨迹值的方法。轨迹值与跟踪误注册相关，并与轨迹值限制进行比较，以评估轨迹的状况。在示例实施例中，轨道值被确定为来自轨道中的先前楔块的多个位置误差信号的函数。在自伺服写入操作期间，使用轨迹值和轨迹值限制来选择性地执行恢复动作。在示例实施例中，动态调整轨迹值限制。

8. 发明申请

US20080256423A1 Apparatus for Providing Error Correction Capability to Longitudinal Position Data 有权
标题翻译：提供纵向位置数据的纠错能力的装置
公开(公告)号：US20080256423A1
公开(公告)日：2008-10-16
申请号：US12141962
申请日：2008-06-19
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Glen A. Jaquette , Paul J. Seger
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Glen A. Jaquette , Paul J. Seger
IPC分类号： H03M13/13 , G06F11/10
CPC分类号： G11B20/1201 , G11B20/18 , G11B20/1866 , G11B20/20 , G11B2020/1282 , G11B2020/1284 , G11B2220/90
摘要： A method and apparatus for providing error correction capability to longitudinal position data are disclosed. Initially, data are encoded via a set of even LPOS words and a set of odd LPOS words. The encoded data are then decoded by generating a set of syndrome bits for each of the LPOS words. A determination is then made as to whether or not there is an error within one of the LPOS words based on its corresponding syndrome bits.
摘要翻译：公开了一种向纵向位置数据提供纠错能力的方法和装置。最初，通过一组偶数LPOS字和一组奇数LPOS字对数据进行编码。然后通过为每个LPOS字生成一组校正子位来解码编码数据。然后，基于其对应的校正子位确定是否存在LPOS字之一内的错误。

9. 发明授权

US07298578B2 Magnetic recording medium and magnetic recording/reproducing apparatus 失效
公开(公告)号：US07298578B2
公开(公告)日：2007-11-20
申请号：US11759556
申请日：2007-06-07
申请人： Makoto Asakura , Hideo Sado
发明人： Makoto Asakura , Hideo Sado
IPC分类号： G11B5/596
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/59605 , G11B5/59616 , G11B5/59633 , G11B5/59655 , G11B5/743 , G11B20/1217 , G11B20/1403 , G11B2020/1232 , G11B2020/1248 , G11B2020/1267 , G11B2020/1284 , G11B2220/2516
摘要： A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written by the magnetic head. The servo area includes a preamble area where a preamble recording pattern that represents data used for providing a clock synchronization of the servo data is formed by a plurality of magnetic sections; and a burst area where data used for detecting a relative position of the magnetic head with respect to a track center position of the servo data is recorded and on which a single burst recording pattern which is a layout pattern that tilts to the preamble recording pattern with a predetermined tilt angle is formed by a plurality of magnetic sections.

10. 发明授权

US07262932B2 Magnetic recording medium and magnetic recording/reproducing apparatus 失效
公开(公告)号：US07262932B2
公开(公告)日：2007-08-28
申请号：US11329599
申请日：2006-01-11
申请人： Makoto Asakura , Hideo Sado
发明人： Makoto Asakura , Hideo Sado
IPC分类号： G11B5/596
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/59605 , G11B5/59616 , G11B5/59633 , G11B5/59655 , G11B5/743 , G11B20/1217 , G11B20/1403 , G11B2020/1232 , G11B2020/1248 , G11B2020/1267 , G11B2020/1284 , G11B2220/2516
摘要： A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written by the magnetic head. The servo area includes a preamble area where a preamble recording pattern that represents data used for providing a clock synchronization of the servo data is formed by a plurality of magnetic sections; and a burst area where data used for detecting a relative position of the magnetic head with respect to a track center position of the servo data is recorded and on which a single burst recording pattern which is a layout pattern that tilts to the preamble recording pattern with a predetermined tilt angle is formed by a plurality of magnetic sections.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式