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1. 发明授权

US5363252A Method and system for track skew tolerant acquistion burst sequence validation in a data storage system 失效
标题翻译：用于数据存储系统中的磁道偏斜容错采集突发序列验证的方法和系统
公开(公告)号：US5363252A
公开(公告)日：1994-11-08
申请号：US85518
申请日：1993-06-30
申请人： Steven R. Bentley , Sushama M. Paranjape , Rickey W. Murray
发明人： Steven R. Bentley , Sushama M. Paranjape , Rickey W. Murray
IPC分类号： G11B20/12 , G11B20/14 , G11B20/20 , G11B5/09
CPC分类号： G11B20/1403 , G11B20/20
摘要： A method and system for detecting and validating multibit acquisition burst sequences which precede and follow each data block in a multitrack data storage system. An acquisition sequence pattern detection circuit is utilized to provide an indication of acquisition burst sequence detection in response to an occurrence of an accurate sequence of a selected number of acquisition burst sequence bits. A latch is utilized to store the pattern criteria indication for each associated track and the latch outputs are then combined in a logic circuit to provide a composite burst pattern error indication signal. An acquisition burst sequence quality detection circuit is also utilized to provide a quality criteria indication for each track in response to an occurrence of an accurate sequence of a larger number of acquisition burst sequence bits than is normally required for acquisition which ensures that subsequent detection of the acquisition burst sequence will be successful, despite increased skew among the multiple tracks. An occurrence of an acquisition burst sequence is then validated during selected modes of operation only in response to a detection of an acquisition burst sequence and an indication of sufficient quality of the acquisition burst sequence within a predetermined number of tracks.
摘要翻译：一种在多轨数据存储系统中检测和验证在每个数据块之前和之后的多位获取突发序列的方法和系统。采集序列模式检测电路用于响应于选定数量的采集脉冲串序列位的精确序列的出现而提供采集脉冲串序列检测的指示。锁存器用于存储每个相关轨道的模式标准指示，然后将锁存器输出组合在逻辑电路中以提供复合脉冲串模式错误指示信号。还采用获取突发序列质量检测电路来响应于比采集通常需要的更大数量的采集突发序列位的精确序列的出现，为每个轨道提供质量标准指示，其确保随后检测到尽管多个轨道之间的偏斜增加，采集突发序列将成功。然后，在所选择的操作模式期间，仅在采集脉冲串序列的检测和在预定数目的磁道内的采集脉冲串序列的足够质量的指示的情况下验证采集脉冲串序列的出现。

2. 发明授权

US07965463B2 Recording multiple codeword sets during latency period 有权
标题翻译：在等待期间记录多个码字集
公开(公告)号：US07965463B2
公开(公告)日：2011-06-21
申请号：US12351713
申请日：2009-01-09
申请人： Steven R. Bentley , Paul J. Seger
发明人： Steven R. Bentley , Paul J. Seger
IPC分类号： G11B5/09
CPC分类号： G11B5/00813 , G11B20/18 , G11B2220/90
摘要： Writing data to magnetic tape is performed by receiving data from a host, establishing sub data sets, computing C1 and C2 ECC, forming Codeword Quad sets, writing a beginning Data Set Separator to a magnetic tape, writing a plurality of contiguous instances of the CQ Set to the magnetic tape and writing a closing DSS. The number of instances of each Codeword Pair is increased, thereby allowing the benefits of writing short tape records and improving reading reliability while reducing susceptibility to mis-tracking errors and large defects, and while reducing the negative impact on data reliability. Otherwise unused latency times are utilizing and therefore no performance penalty is incurred.
摘要翻译：通过从主机接收数据，建立子数据集，计算C1和C2 ECC，形成代码字四重组，将起始数据集分离器写入磁带，写入CQ的多个连续实例来执行向磁带写入数据设置磁带并写入关闭DSS。每个Codeword Pair的实例数量增加，从而允许编写简短的磁带记录和提高读取可靠性的优点，同时减少对错误跟踪错误和大缺陷的敏感性，同时减少对数据可靠性的负面影响。否则，未使用的延迟时间正在利用，因此不会产生性能损失。

3. 发明授权

US5408366A Apparatus and method for detecting and validating formatted blocks on magnetic tape 失效
标题翻译：用于检测和验证磁带上的格式化块的装置和方法
公开(公告)号：US5408366A
公开(公告)日：1995-04-18
申请号：US77162
申请日：1993-06-14
申请人： Steven R. Bentley , Rickey W. Murray , Sushama M. Paranjape , Fernando Quintana
发明人： Steven R. Bentley , Rickey W. Murray , Sushama M. Paranjape , Fernando Quintana
IPC分类号： G11B5/09 , G11B15/04 , G11B20/10 , G11B20/12 , G11B20/18 , G11B27/36
CPC分类号： G11B20/1205 , G11B15/04 , G11B20/1879 , G11B27/36 , G11B2020/183
摘要： An apparatus and method for detecting and validating formatted blocks during read/write data operations in a magnetic tape data storage system includes component functionality for reading and writing data on a magnetic tape medium in a plurality of modes, including a read-only (R) mode and a read-while-write (RWW) mode, the data being arranged in one or more tracks in a sequence of formatted blocks. In preferred embodiments, formatted block detection and validation is performed by appropriate logic circuitry configured to detect at least one formatting entity representing an inter-block gap, a block acquisition burst, a synchronization character, or any other desired formatting entity, using first and second programmable detection thresholds that are the same or substantially the same in both the R and RWW modes. In addition, a validation determination is made in the RWW mode whether detection of the formatting entity satisfies an RWW error threshold that is greater than either of the first and second programmable detection thresholds. If the RWW error threshold is not satisfied, a message is generated indicating that a write retry may be required. In this way, the detection of various formatting entities is achieved uniformly during the R and RWW modes but provision is also made for applying a more stringent threshold criteria during the RWW mode for write validation.
摘要翻译：一种用于在磁带数据存储系统中读/写数据操作期间检测和验证格式化块的装置和方法包括用于以多种模式在磁带介质上读取和写入数据的组件功能，包括只读（R）模式和读写同时（RWW）模式，数据被布置在格式化块的序列中的一个或多个轨道中。在优选实施例中，格式化块检测和验证由适当的逻辑电路执行，该逻辑电路经配置以使用第一和第二检测器来检测表示块间间隔，块获取脉冲串，同步字符或任何其它期望格式化实体的至少一个格式化实体可编程检测阈值在R和RWW模式中都相同或基本相同。此外，在RWW模式中进行有效确定，无论格式化实体的检测是否满足大于第一和第二可编程检测阈值中的任一个的RWW误差阈值。如果RWW错误阈值不满足，则生成指示可能需要写入重试的消息。以这种方式，在R和RWW模式期间均衡地实现各种格式化实体的检测，但是还提供了在用于写入验证的RWW模式期间应用更严格的阈值准则。

4. 发明授权

US5373401A Data storage system having multimodal interblock gap detection utilizing a predicted occurance time window 失效
标题翻译：数据存储系统具有利用预测发生时间窗的多模块间块间隙检测
公开(公告)号：US5373401A
公开(公告)日：1994-12-13
申请号：US79028
申请日：1993-06-18
申请人： Steven R. Bentley , Sushama M. Paranjape , Fernando Quintana , Stephen C. West
发明人： Steven R. Bentley , Sushama M. Paranjape , Fernando Quintana , Stephen C. West
IPC分类号： G11B20/10 , G11B20/12 , G11B27/30 , G11B5/09
CPC分类号： G11B20/12 , G11B27/3027 , G11B20/1201
摘要： A method and system for accurately reading and storing data as multiple data blocks on a removable data storage medium mounted within a data storage system. Each data block includes an initial acquisition data character and multiple diverse synchronization characters/bursts and adjacent data blocks are separated by a unique interblock gap character. A multimodal interblock gap character detection circuit is provided which may operate in a normal mode of operation or a stringent mode of operation, wherein an enhanced degree of certainty is required for detection of the interblock gap character. A predicted time window of occurrence for a next interblock gap character is generated in response to detection of an initial acquisition data character and at least one synchronization character within a data block. Additionally, a global clock count signal based upon multiple track outputs is generated each time a resynchronization burst is encountered. The multimodal interblock gap character detection circuit is then automatically switched from the stringent mode of operation to the normal mode of operation during the predicted time window, minimizing the possibility of erroneous interblock gap character detection during data block processing. In data blocks which are sufficiently large to utilize multiple unique end of block synchronization characters, the occurrence of each successive end of block synchronization character may be utilized to redefine the predicted time window with greater accuracy. Expiration of a predicted time window or the occurrence of a global clock count signal during an open predicted time window may then be utilized to generate a presumption of the occurrence of an interblock gap character; however, actual detection of the interblock gap character will override the prediction circuitry.
摘要翻译：一种用于在安装在数据存储系统中的可移动数据存储介质上将数据准确地读取和存储为多个数据块的方法和系统。每个数据块包括初始采集数据字符，并且多个不同的同步字符/突发和相邻的数据块由唯一的间隔间隔字符隔开。提供了一种多模式间块间隙字符检测电路，其可以在正常操作模式或严格的操作模式下操作，其中需要增强的确定性程度来检测帧间间隔字符。响应于初始获取数据字符的检测和数据块内的至少一个同步字符的检测，生成下一个块间间隔字符的预测出现时间窗口。此外，每次遇到重新同步突发时，都会产生基于多个磁道输出的全局时钟计数信号。然后，在预测时间窗口期间，多模块间间隔字符检测电路自动地从严格的操作模式切换到正常操作模式，从而最小化在数据块处理期间错误的块间间隙字符检测的可能性。在足够大以利用块同步字符的多个唯一结尾的数据块中，可以利用块同步字符的每个连续结束的出现以更高的精度来重新定义预测的时间窗。然后可以利用在开放预测时间窗口中的预测时间窗口的过期或全局时钟计数信号的出现来产生间隔间隔字符出现的推定; 然而，间隔间隙字符的实际检测将覆盖预测电路。

5. 发明授权

US4860193A System for efficiently transferring data between a high speed channel and a low speed I/O device 失效
标题翻译：用于在高速通道和低速I / O设备之间高效传输数据的系统
公开(公告)号：US4860193A
公开(公告)日：1989-08-22
申请号：US865982
申请日：1986-05-22
申请人： Steven R. Bentley , David M. Fickle , Pamela R. Nylander-Hill
发明人： Steven R. Bentley , David M. Fickle , Pamela R. Nylander-Hill
IPC分类号： G06F5/10 , G06F5/12 , G06F13/12 , G06F13/38
CPC分类号： G06F5/12 , G06F13/122 , G06F2205/108 , G06F2205/126
摘要： A buffer memory is used to store data from the input/output device arrayed corresponding to the data rate of said input/output data device. A threshold is selected for beginnig an unload cycle of the buffer memory which will permit said buffer memory contents to be completely transferred at the higher channel data rate to the channel during the remaining time additional data is being accumulated in the memory. The threshold selection is adaptive such that subsequent data block lengths are utilized to calculate a new threshold maintaining data transfer rates from the input/output device into the channel at an optimum value.
摘要翻译：缓冲存储器用于存储来自与所述输入/输出数据设备的数据速率相对应的输入/输出设备排列的数据。选择阈值以开始缓冲存储器的卸载循环，这将允许在剩余时间内将附加数据累积在存储器中的所述缓冲存储器内容以更高的信道数据速率完全传送到信道。阈值选择是自适应的，使得随后的数据块长度被用于计算维持以最佳值从输入/输出设备进入信道的数据传输速率的新阈值。

6. 发明申请

US20110176380A1 PAIRED PROGRAMMABLE FUSES 有权
标题翻译：配对可编程熔丝
公开(公告)号：US20110176380A1
公开(公告)日：2011-07-21
申请号：US12691501
申请日：2010-01-21
申请人： STEVEN R. BENTLEY , PAUL M. GRECO
发明人： STEVEN R. BENTLEY , PAUL M. GRECO
IPC分类号： G11C17/18 , H01H37/76
CPC分类号： G11C17/16 , G11C16/22 , G11C17/18
摘要： A plurality of fuses are arranged in pairs and configured such that each pair of fuses represents a data bit when one fuse of the pair is blown; represents an un-programmed bit when no fuse of the pair is blown; and represents a zero-ized bit when both fuses of the pair are blown. A fuse programming system programs the fuses of the pairs such that each pair represents a bit, comprising blowing a first fuse of a pair to represent a “1” bit, blowing a second fuse of a pair to represent a “0” bit, and blowing both fuses of a pair to represent a zero-ized pair, whereby if neither fuse of a pair is blown represents a null, un-programmed bit.
摘要翻译：成对配置多个保险丝，并且配置为使得每对保险丝表示一对保险丝熔断时的数据位; 代表一对未熔断器的未编程位; 并且当该对的两个熔丝熔断时表示零位。熔丝编程系统对这些对的熔丝进行编程，使得每一对代表一个位，包括吹出一对第一个熔丝以表示“1”位，吹出一对第二个熔丝以表示“0”位，以及吹一对熔丝以表示零对，从而如果一对熔丝没有熔断，则表示空的未编程位。

7. 发明申请

US20110102938A1 POWER MODE OPERATION OF A MAGNETIC TAPE DRIVE 失效
标题翻译：磁带驱动器的电源模式操作
公开(公告)号：US20110102938A1
公开(公告)日：2011-05-05
申请号：US12613259
申请日：2009-11-05
申请人： ALLEN K. BATES , STEVEN R. BENTLEY , RANDALL S. DOAN , KATSUHIKO HAGIWARA , FAHNMUSA C. JANGABA , CHRISTINE R. KNIBLOE , HISATO MATSUO , HIROKAZU NAKAYAMA , MITSUHIRO NISHIDA , DANIEL J. WINARSKI
发明人： ALLEN K. BATES , STEVEN R. BENTLEY , RANDALL S. DOAN , KATSUHIKO HAGIWARA , FAHNMUSA C. JANGABA , CHRISTINE R. KNIBLOE , HISATO MATSUO , HIROKAZU NAKAYAMA , MITSUHIRO NISHIDA , DANIEL J. WINARSKI
IPC分类号： G11B5/55
CPC分类号： G11B15/026
摘要： A magnetic tape drive having a tape drive system for moving magnetic tape, tape read/write and servo system, tape cartridge load/unload systems, I/O communications, memory; and a control system, operates in three modes to conserve energy consumption. A first low power mode powers the I/O communications, the memory, and the control system. If a magnetic tape cartridge is in loaded position in the magnetic tape drive, the second low power mode powers the same as the first low power mode, and additionally powers the tape drive system to apply tension to a magnetic tape of the magnetic tape cartridge. In the first and the second low power modes, the control system operates the I/O communications, the memory and the control system to respond to and execute commands received at the I/O communications if the commands are executable without magnetic tape access. The third, full power mode, is entered if a command received at the I/O communications requires magnetic tape access.
摘要翻译：一种磁带驱动器，具有用于移动磁带，磁带读/写和伺服系统的磁带驱动系统，磁带盒装载/卸载系统，I / O通信，存储器; 和控制系统，以三种模式运行，以节省能源消耗。第一个低功耗模式为I / O通信，存储器和控制系统供电。如果磁带驱动器中的磁带盒处于装载位置，则第二低功率模式与第一低功率模式相同，并且另外为磁带驱动系统供电以向磁带盒的磁带施加张力。在第一和第二低功率模式中，如果命令可执行而没有磁带存取，则控制系统操作I / O通信，存储器和控制系统来响应并执行在I / O通信中接收的命令。如果在I / O通信中接收的命令需要磁带访问，则输入第三个全功率模式。

8. 发明授权

US5475542A Method and apparatus for improving inter-block gap length tolerance and locate accuracy for write appends 失效
标题翻译：用于改善块间间隙长度公差的方法和装置，并定位写入附件的精度
公开(公告)号：US5475542A
公开(公告)日：1995-12-12
申请号：US275917
申请日：1994-07-18
申请人： Steven R. Bentley , Alex Chliwnyj , Steven D. Johnson , Sushama M. Paranjape , Ronald K. Rhodes
发明人： Steven R. Bentley , Alex Chliwnyj , Steven D. Johnson , Sushama M. Paranjape , Ronald K. Rhodes
IPC分类号： G11B5/09 , G11B15/087 , G11B15/52 , G11B15/54 , G11B15/48
CPC分类号： G11B5/09 , G11B15/087 , G11B15/52 , G11B15/54
摘要： A method and apparatus for accurately locating targeted append points in a tape drive. The effects of interlayer slip (ILS) are eliminated and smaller IBGs are possible thus providing increased data capacity for a given tape cartridge. A coarse tachometer count is used in combination with the read dataflow to accurately locate the proper append point even with a small IBG size. The appended data are assured to be written using the proper tape velocity which virtually eliminates improper write appends and read temporary errors previously caused by ILS effects. The solution also guarantees that customer data previously written to the tape are not accidentally overwritten.
摘要翻译：一种用于在磁带驱动器中精确定位目标附加点的方法和装置。消除了层间滑移（ILS）的影响，并且可以使用较小的IBG，从而为给定的带盒提供增加的数据容量。与读取的数据流结合使用粗调速计数，即使使用小的IBG尺寸来精确定位适当的附加点。使用适当的磁带速度确保附加数据的写入，实际上消除了不正确的写入附加和读取以前由ILS效应造成的临时错误。该解决方案还保证以前写入磁带的客户数据不会被意外覆盖。

9. 发明授权

US5315284A Asynchronous digital threshold detector for a digital data storage channel 失效
标题翻译：用于数字数据存储通道的异步数字阈值检测器
公开(公告)号：US5315284A
公开(公告)日：1994-05-24
申请号：US73921
申请日：1993-06-07
申请人： Steven R. Bentley , Robert A. Hutchins , Constantin M. Melas , Pantas Sutardja
发明人： Steven R. Bentley , Robert A. Hutchins , Constantin M. Melas , Pantas Sutardja
IPC分类号： G11B20/14 , G11B20/10 , H03K5/1536 , G05B1/03 , G06F7/02 , H03K5/153
CPC分类号： H03K5/1536 , G11B20/10009
摘要： A zero-crossing detector for asynchronous detection of threshold transitions in a digitally sampled signal waveform. The Asynchronous Digital Threshold Detector (ADTD) receives a digitized self-clocking data readback waveform and provides the relative location of a zero-crossing within the sample period where it occurs. The digital output, which is useful for recovering data and clock signals, is in a digital form that can be used directly by a certain class of asynchronous digital phase detector systems. The ADTD is entirely digital and can be embodied in a low power configuration using CMOS technology.
摘要翻译：用于异步检测数字采样信号波形中的阈值转换的过零检测器。异步数字阈值检测器（ADTD）接收数字化的自时钟数据回读波形，并在发生的采样周期内提供过零点的相对位置。用于恢复数据和时钟信号的数字输出是数字形式，可以由某种类型的异步数字相位检测器系统直接使用。 ADTD是完全数字化的，可以使用CMOS技术实现低功耗配置。

10. 发明授权

US5442491A Synchronizing data tracks using global force windows and track sync counters in a multitrack tape device 失效
标题翻译：使用全局强制窗口同步数据轨道，并在多轨磁带设备中跟踪同步计数器
公开(公告)号：US5442491A
公开(公告)日：1995-08-15
申请号：US274515
申请日：1994-07-13
申请人： Charles E. Bailey , Steven R. Bentley , Sushama M. Paranjape , Fernando Quintana , Stephen C. West
发明人： Charles E. Bailey , Steven R. Bentley , Sushama M. Paranjape , Fernando Quintana , Stephen C. West
IPC分类号： G11B5/008 , G11B20/12 , G11B20/18 , G11B20/20 , G11B27/10 , G11B27/30 , G11B5/00
CPC分类号： G11B27/10 , G11B20/1205 , G11B20/1866 , G11B20/20 , G11B27/3027 , G11B5/0083 , G11B2020/10592 , G11B2220/90
摘要： A method and apparatus which first calculates track to track skew in a tape device and then uses the results of that calculation to adjust the windows for detection of sync and resync characters. The system makes use of global circuitry which adjusts the sync and resync windows for all tracks based upon the skew calculation. In the case of the windows used for detecting resyncs, when skew is determined to be large, the global resync window must span a larger time period to account for the skew in detecting resync marks. Conversely, when there is little or no skew present, the windows for resync detection can be narrowed. Normally, the track logic utilizes its own local windows to detect resyncs. If a track misses a resync, however, it must use the global resync window to determine the next resync location. Once the tracks are resynchronized, control can return to local track circuitry to maintain synchronization. In the case of force windows used for detecting the syncs after a resync alignment burst, the skew calculation is used to determine the correct sync location for each particular track. Further, data alignment is maintained in the multitrack environment through the use of a deinterleaving circuit which receives misalignment indications and, in response, makes address corrections to data bytes and pointer bytes.
摘要翻译：首先计算磁带设备中跟踪偏斜的方法和装置，然后使用该计算的结果来调整用于检测同步和再同步字符的窗口。该系统利用全局电路，根据偏斜计算调整所有轨道的同步和再同步窗口。在用于检测重新同步的窗口的情况下，当确定歪斜大时，全局重新同步窗口必须跨越较大的时间段，以解决检测重新同步标记中的偏斜。相反，当存在很少或没有偏移时，可以缩小用于重新同步检测的窗口。通常，轨道逻辑利用自己的本地窗口来检测重新同步。但是，如果某个轨道未通过重新同步，则必须使用全局重新同步窗口来确定下一个重新同步位置。一旦轨道重新同步，控制可以返回到本地轨道电路以保持同步。在用于在重新同步对准突发之后检测同步的强制窗口的情况下，使用偏斜计算来确定每个特定轨道的正确的同步位置。此外，通过使用接收未对准指示的解交织电路，在多轨环境中保持数据对准，并且作为响应，对数据字节和指针字节进行地址校正。

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