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1. 发明公开

US20230206953A1 Reader Bias Based Locking Technique Enabling High Read Concurrency For Read-Mostly Workloads 审中-公开
公开(公告)号：US20230206953A1
公开(公告)日：2023-06-29
申请号：US18174520
申请日：2023-02-24
申请人： Oracle International Corporation
发明人： David Dice , Alex Kogan
IPC分类号： G11B20/10 , G11C16/26 , G06F16/23 , G06F9/52
CPC分类号： G11B20/10268 , G11B20/105 , G11C16/26 , G06F16/2343 , G06F16/2365 , G06F9/526
摘要： A data object has a lock and a condition indicator associated with it. Based at least partly on detecting a first setting of the condition indicator, a reader stores an indication that the reader has obtained read access to the data object in an element of a readers structure and reads the data object without acquiring the lock. A writer detects the first setting and replaces it with a second setting, indicating that the lock is to be acquired by readers before reading the data object. Prior to performing a write on the data object, the writer verifies that one or more elements of the readers structure have been cleared.

2. 发明申请

US20170024274A1 Systems and Methods for Correlation Based Data Alignment 有权
标题翻译：基于相关数据对齐的系统与方法
公开(公告)号：US20170024274A1
公开(公告)日：2017-01-26
申请号：US14803202
申请日：2015-07-20
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Yuqing Yang , Shaohua Yang , Xuebin Wu , Qi Zuo
IPC分类号： G06F11/10
CPC分类号： G06F11/1004 , G06F11/1076 , G11B20/10268 , G11B20/10527 , G11B2020/185
摘要： Embodiments of the present inventions are related to systems and methods for data processing, and more particularly to systems and methods for recovering data where synchronization information is not detected.
摘要翻译：本发明的实施例涉及用于数据处理的系统和方法，更具体地涉及用于在未检测到同步信息的情况下恢复数据的系统和方法。

3. 发明授权

US09286934B2 Data duplication in tape drives 有权
标题翻译：磁带机中的数据复制
公开(公告)号：US09286934B2
公开(公告)日：2016-03-15
申请号：US14364486
申请日：2012-02-06
申请人： Andrew Hana , Gregory Trezise
发明人： Andrew Hana , Gregory Trezise
IPC分类号： G06F3/06 , G11B20/12 , G11B20/10 , G06F17/30
CPC分类号： G11B20/1201 , G06F3/0641 , G06F3/0682 , G06F17/3015 , G11B20/10268 , G11B20/12 , G11B2020/1292 , G11B2220/956
摘要： A method and apparatus for data de-duplication is disclosed. Use de-duplication engine (DDE) divides data into regions. The DDE processes the regions in a serial fashion. The DDE clears its hash table before processing the first region. Each region is divided into a number of chunks. A hash is generated for each chunk in a region. When a hash for a chunk is not in a hash table, the hash is stored in the hash table and the chunk is stored on media. When the hash is a duplicate of a hash already in the table, the hash and chunk are discarded and a reference to the previously stored chunk is stored to the media. The DDE does not retain all the hashes from all the regions in the hash table at the same time. The DDE only retains the hashes for the current region being processed and N previous regions where N is a positive integer greater than zero.
摘要翻译：公开了一种用于重复数据删除的方法和装置。使用重复数据删除引擎（DDE）将数据分割成多个区域。 DDE以串行方式处理区域。 DDE在处理第一个区域之前清除其哈希表。每个区域分为多个块。为区域中的每个块生成散列。当一个块的哈希不在散列表中时，哈希存储在哈希表中，并且该块被存储在媒体上。当哈希与表中已经存在的哈希重复时，哈希和块被丢弃，并且对先前存储的块的引用被存储到介质中。 DDE不会同时保留散列表中所有区域的所有散列。 DDE仅保留正在处理的当前区域的哈希值和N个以上大于零的正整数的N个先前区域。

4. 发明申请

US20160004221A1 METHODS AND APPARATUS FOR COHERENT HOLOGRAPHIC DATA CHANNELS 有权
标题翻译：相关的全息数据通道的方法和设备
公开(公告)号：US20160004221A1
公开(公告)日：2016-01-07
申请号：US14831291
申请日：2015-08-20
申请人： Akonia Holographics, LLC
发明人： Mark R. AYRES , Kenneth E. ANDERSON , David C. PRUETT , Will A. LOECHEL
IPC分类号： G03H1/26 , G03H1/22 , G11B7/0065
CPC分类号： G03H1/2645 , G03H1/2202 , G03H1/2286 , G03H2001/2244 , G03H2001/2675 , G11B7/0065 , G11B7/1362 , G11B7/1369 , G11B20/10268
摘要： Methods and devices for coherent holographic data channel techniques are presented. Coherent techniques for data detection generally include homodyne and heterodyne detection. Techniques for quadrature homodyne detection, resampling quadrature homodyne detection, n-rature homodyne detection, and spatial wavefront demodulation are presented. Coherent detection techniques in turn enable coherent channel modulation techniques such as phase modulation (including binary phase shift keying, or BPSK; phase quadrature holographic multiplexing, or QPSK; and quadrature amplitude modulation, or QAM). Coherent detection may also enable or improve the performance of other channel techniques such as partial response maximum likelihood (PRML), the various classes of extended PRML, and of noise-predictive maximum likelihood (NPML) detection.
摘要翻译：提出了相干全息数据通道技术的方法和装置。数据检测的相干技术通常包括零差和外差检测。提出了正交零差检测技术，重采样正交零差检测，n-rature零差检测和空间波前解调。相干检测技术依次实现相位调制技术，例如相位调制（包括二进制相移键控或BPSK;相位正交全息复用或QPSK;以及正交幅度调制或QAM）。相干检测还可以实现或改善其他信道技术的性能，例如部分响应最大似然（PRML），扩展PRML的各种类型以及噪声预测最大似然（NPML）检测。

5. 发明申请

US20150380049A1 METHOD FOR DETERMINING BIT RATE AND APPARATUS THEREFOR 有权
标题翻译：用于确定位速率的方法及其装置
公开(公告)号：US20150380049A1
公开(公告)日：2015-12-31
申请号：US14764527
申请日：2014-01-29
申请人： CENTER FOR INTEGRATED SMART SENSORS FOUNDATION
发明人： Giwon Kim , Chong-Min Kyung
IPC分类号： G11B20/10 , G11B20/00 , H04N7/18 , G06K9/00 , H04N5/232
CPC分类号： G11B20/10268 , G06K9/00711 , G06K2009/00738 , G11B20/00007 , G11B20/10287 , G11B2020/00072 , H04N5/23241 , H04N7/18 , H04N19/146 , H04N19/147 , H04N19/15
摘要： The present invention relates to a method for controlling a bit rate and an apparatus therefor, and more specifically to an apparatus for storing a bit rate changed according to a significant level in a memory and a method for determining the bit rate, which meets the requirements for the distortion according to the memory space limitation and the significant level of the image information so as to minimize the energy consumption.
摘要翻译：本发明涉及一种用于控制比特率的方法及其装置，更具体地涉及一种用于存储根据存储器中的显着级别而改变的比特率的装置和用于确定比特率的方法，其满足要求用于根据存储器空间限制和图像信息的显着级别的失真，以便最小化能量消耗。

6. 发明授权

US09218846B2 Demodulation method of magnetic data and demodulation device of magnetic data 有权
标题翻译：磁数据解调方法及磁数据解调装置
公开(公告)号：US09218846B2
公开(公告)日：2015-12-22
申请号：US14669409
申请日：2015-03-26
申请人： NIDEC SANKYO CORPORATION
发明人： Shigeo Nakajima , Katsuhisa Higashi , Yoichi Isono
IPC分类号： G11B5/02 , G11B20/10 , G11B20/12 , G11B5/09
CPC分类号： G11B20/10287 , G11B5/00808 , G11B5/09 , G11B20/10268 , G11B20/1252 , G11B20/14 , G11B20/1403
摘要： A demodulation method of magnetic data may include a first data creating step which creates a preliminary data string for creating the demodulation data on a basis of an interval that is a time interval between peaks of a read signal of an analog-shaped magnetic data, and a second data creating step which creates a demodulation data creating data for creating the demodulation data on a basis of the preliminary data string created in the first data creating step. When a peak of the read signal is not detected for a predetermined time, a pseudo-peak is generated and a pseudo-interval is stored in a data storage section, and steps similar to the first data creating step and the second data creating step are executed, and the pseudo-peak is generated until the demodulation data creating data corresponding to a final interval is created.
摘要翻译：磁数据的解调方法可以包括第一数据创建步骤，该步骤基于作为模拟磁数据的读取信号的峰值之间的时间间隔的间隔和与模拟形状磁数据的读取信号的峰值之间的时间间隔创建用于创建解调数据的初步数据串;以及第二数据创建步骤，基于在第一数据创建步骤中创建的初步数据串，创建用于创建解调数据的解调数据创建数据。当在预定时间内没有检测到读取信号的峰值时，产生伪峰值，并将伪间隔存储在数据存储部分中，并且类似于第一数据创建步骤和第二数据创建步骤的步骤是并且产生伪峰值，直到创建与最后间隔相对应的解调数据创建数据。

7. 发明授权

US09130507B1 Gain smoothing for burst demodulation in servo channel 有权
标题翻译：伺服通道中的脉冲串解调增益平滑
公开(公告)号：US09130507B1
公开(公告)日：2015-09-08
申请号：US14104458
申请日：2013-12-12
申请人： LSI Corporation
发明人： Yu Liao
IPC分类号： G11B20/10 , H03D7/14
CPC分类号： G11B20/10268 , G11B20/10009
摘要： A digital gain estimation loop and a gain smoothing method for burst demodulation in a servo channel are disclosed. The gain estimation is performed on digital samples obtained from a digital finite impulse response (DFIR) filter, wherein the digital samples include at least a portion of a servo address mark (SAM) and gray data in the servo sector. The gain estimation method includes the steps of: generating a reference signal based on the digital samples obtained from the DFIR filter; generating a comparison signal by delaying the digital samples obtained from the DFIR filter; determining a gain error gradient by comparing the reference signal and the comparison signal; and calculating the second gain adjustment based on the gain error gradient.
摘要翻译：公开了一种用于伺服信道中的突发解调的数字增益估计环路和增益平滑方法。对从数字有限脉冲响应（DFIR）滤波器获得的数字样本进行增益估计，其中数字采样包括伺服扇区中的伺服地址标记（SAM）和灰度数据的至少一部分。增益估计方法包括以下步骤：基于从DFIR滤波器获得的数字样本产生参考信号; 通过延迟从DFIR滤波器获得的数字样本产生比较信号; 通过比较参考信号和比较信号来确定增益误差梯度; 以及基于所述增益误差梯度来计算所述第二增益调整。

8. 发明授权

US09129650B2 Array-reader based magnetic recording systems with frequency division multiplexing 有权
标题翻译：基于阵列读取器的磁记录系统，具有频分复用
公开(公告)号：US09129650B2
公开(公告)日：2015-09-08
申请号：US14021811
申请日：2013-09-09
申请人： LSI Corporation
发明人： George Mathew , Bruce Wilson , Suharli Tedja , Eui Seok Hwang
IPC分类号： G11B20/06 , G11B5/09 , G11B5/035 , G11B5/02 , G11B20/10
CPC分类号： G11B20/10268 , G11B20/10009 , G11B20/10046
摘要： A magnetic recording system includes an array of analog inputs operable to receive analog signals retrieved from a magnetic storage medium, a modulator operable to combine the analog signals to yield a frequency division multiplexed signal, a demodulator operable to yield a plurality of demodulated signals from the frequency division multiplexed signal corresponding to each channel of the array, and a joint equalizer operable to filter the plurality of demodulated signals to yield an equalized output.
摘要翻译：磁记录系统包括可操作以接收从磁存储介质检索的模拟信号的模拟输入阵列，可操作以组合模拟信号以产生频分多路复用信号的调制器，解调器，可操作以产生来自对应于阵列的每个通道的频分多路复用信号，以及联合均衡器，可操作以对多个解调信号进行滤波以产生均衡的输出。

9. 发明申请

US20150170705A1 DATA DEMODULATION DEVICE, DATA DEMODULATION METHOD, REPRODUCTION DEVICE FOR MAGNETICALLY RECORDED DATA, AND PROGRAM 有权
标题翻译：数据解调设备，数据解调方法，用于磁记录数据的生成设备和程序
公开(公告)号：US20150170705A1
公开(公告)日：2015-06-18
申请号：US14389607
申请日：2013-08-26
申请人： NIDEC SANKYO CORPORATION
发明人： Shigeo Nakajima , Yoichi Isono , Katsuhisa Higashi
IPC分类号： G11B20/10 , G11B5/008
CPC分类号： G11B20/10037 , G11B5/00808 , G11B20/10 , G11B20/10009 , G11B20/10268 , G11B20/14 , G11B2220/17
摘要： A data demodulation method may include converting an analog signal into a digital signal; detecting a peak point of a reproduced signal; creating a plurality of preliminary data rows for creating demodulated data; and creating demodulated data. The preliminary data rows may include the first individual data to be identified on the basis of the interval, and are formed of the first individual data of plural bits. Creating a plurality of preliminary data rows may use a template listing part of, or all of, a plurality of bit patterns being formed of second individual data.
摘要翻译：数据解调方法可以包括将模拟信号转换为数字信号; 检测再现信号的峰值点; 创建用于创建解调数据的多个初步数据行; 并产生解调数据。初步数据行可以包括基于间隔来识别的第一单独数据，并且由多位的第一单独数据形成。创建多个初步数据行可以使用模板列出由第二单独数据形成的多个位模式的一部分或全部。

10. 发明授权

US09058842B2 Systems and methods for gate aware iterative data processing 有权
标题翻译：门感知迭代数据处理的系统和方法
公开(公告)号：US09058842B2
公开(公告)日：2015-06-16
申请号：US13552403
申请日：2012-07-18
申请人： Fan Zhang , Yang Han , Ming Jin , Chung-Li Wang
发明人： Fan Zhang , Yang Han , Ming Jin , Chung-Li Wang
IPC分类号： G11C27/00 , G11B20/10
CPC分类号： G11B20/10268 , G11B20/10509
摘要： The present inventions are related to systems and methods for iterative data processing scheduling. In one case a data processing system is disclosed that includes a data detector circuit and a data decoder circuit. The data detector circuit is operable to apply a data detection algorithm to a data set to yield a detected output. The data decoder circuit is operable to repeatedly apply a data decoding algorithm to the detected output to yield a decoded output over a number of passes, where the number of passes is within an allowable number of local iterations selected based at least in part on a read gate signal.
摘要翻译：本发明涉及用于迭代数据处理调度的系统和方法。在一种情况下，公开了一种包括数据检测器电路和数据解码器电路的数据处理系统。数据检测器电路可操作以将数据检测算法应用于数据集以产生检测到的输出。数据解码器电路可操作以重复地将数据解码算法应用于检测到的输出，以产生经过多次通过的解码输出，其中通过次数在至少部分基于读取的选择的局部迭代的允许数量之内门信号。

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