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1. 发明申请

US20100177421A1 STORING PARTIAL DATA SETS TO MAGNETIC TAPE 有权
标题翻译：将部分数据集存储到磁带
公开(公告)号：US20100177421A1
公开(公告)日：2010-07-15
申请号：US12351725
申请日：2009-01-09
申请人： Masayuki Demura , Glen Jaquette , Hisato Matsuo , Keisuke Tanaka
发明人： Masayuki Demura , Glen Jaquette , Hisato Matsuo , Keisuke Tanaka
IPC分类号： G11B5/09 , G11B15/00
CPC分类号： G11B20/1201 , G11B20/18 , G11B20/1866 , G11B2020/1222 , G11B2220/90 , H03M13/271 , H03M13/2909
摘要： Methods, logic, apparatus and computer program product write data, comprising less than a full Data Set, to magnetic tape. Data is received from a host, a do-not-interleave command is issued and C1 and C2 ECC are computed. Codeword Quad (CQ) sets are then formed. At least one CQ set of the Data Set is written to a magnetic tape in a non-interleaved manner and a Data Set Information Table (DSIT) is written to the magnetic tape immediately following the at least one written CQ set. An address transformation may be used to cancel interleaving. Writing a CQ set may include writing a plurality of contiguous instances of the CQ set to the magnetic tape to maintain the effectiveness of ECC capability.
摘要翻译：方法，逻辑，设备和计算机程序产品写入数据，包括少于一个完整的数据集，到磁带。从主机接收数据，发出不交错命令，并计算C1和C2 ECC。然后形成Codeword Quad（CQ）集合。将数据集的至少一个CQ集以非交错方式写入磁带，并且数据集信息表（DSIT）被写入紧跟在至少一个写入的CQ集之后的磁带上。可以使用地址变换来取消交织。编写CQ集可以包括将CQ集的多个连续实例写入磁带以保持ECC能力的有效性。

2. 发明申请

US20070183079A1 METHOD, SYSTEM, AND PROGRAM FOR STORING DATA IN A STORAGE MEDIUM 失效
标题翻译：用于在存储介质中存储数据的方法，系统和程序
公开(公告)号：US20070183079A1
公开(公告)日：2007-08-09
申请号：US11734231
申请日：2007-04-11
申请人： Paul Greco , Glen Jaquette , James Karp , Hirokazu Nakayama
发明人： Paul Greco , Glen Jaquette , James Karp , Hirokazu Nakayama
IPC分类号： G11B21/02 , G11B5/09
CPC分类号： G11B5/00817 , G11B20/10527 , G11B20/1201 , G11B27/3027 , G11B2020/10675 , G11B2020/1074 , G11B2220/90 , G11B2220/95
摘要： Provided are a method, system, and article of manufacture for writing data in a tape medium having wraps. A layout of the tape is provided including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data. User data is received to write to the tape medium. Detection is made of whether data writing is occurring in a specified write mode. A work copy is written to available segments in the second set of wraps not having user data in response to the data writing occurring in the specified write mode.
摘要翻译：提供了一种用于在具有包裹的带介质中写入数据的方法，系统和制品。提供带的布局，其包括用于写入用户数据的第一组包裹的全长的至少一个片段和用于写入用户数据的工作副本的第二组包裹的全长内的至少一个片段。接收用户数据以写入磁带介质。数据写入是否以指定的写入模式进行检测。工作副本被写入第二组不具有用户数据的回卷中的可用段，以响应以指定的写入模式发生的数据写入。

3. 发明申请

US20070047121A1 Read channel apparatus for asynchronous sampling and synchronous equalization 有权
标题翻译：用于异步采样和同步均衡的通道设备
公开(公告)号：US20070047121A1
公开(公告)日：2007-03-01
申请号：US11213127
申请日：2005-08-26
申请人： Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer
发明人： Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10055
摘要： A read channel and method using that read channel are disclosed. The read channel comprises an analog to digital converter which asynchronously samples at a fixed rate an analog signal formed by reading a data track, where that data track was written to a data storage medium at a symbol rate and an interpolator interconnected with the analog to digital converter. The read channel further comprises a fractionally-spaced equalizer, where the interpolator provides an interpolated signal to the fractionally-spaced equalizer at an interpolation rate, where that interpolation rate is greater than the symbol rate. The fractionally-spaced equalizer forms a synchronous equalized signal. The read channel further comprises a gain control module interconnected with the fractionally-spaced equalizer, and a sequence detector interconnected with the gain control module.
摘要翻译：公开了使用该读通道的读通道和方法。读通道包括模数转换器，其以固定速率异步采样通过读取数据轨道形成的模拟信号，其中数据轨道以符号速率写入数据存储介质，并且与模数转换器互连的内插器转换器。读通道还包括分数间隔的均衡器，其中内插器以内插速率向分数间隔的均衡器提供内插信号，其中该内插速率大于符号率。分数间隔均衡器形成同步均衡信号。读通道还包括与分数间隔均衡器互连的增益控制模块，以及与增益控制模块互连的序列检测器。

4. 发明申请

US20060082915A1 Apparatus, system, and method for mitigating signal asymmetry 失效
公开(公告)号：US20060082915A1
公开(公告)日：2006-04-20
申请号：US10966531
申请日：2004-10-15
申请人： Evangelos Eleftheriou , Ernest Gale , Robert Hutchins , Glen Jaquette , Sedat Oelcer
发明人： Evangelos Eleftheriou , Ernest Gale , Robert Hutchins , Glen Jaquette , Sedat Oelcer
IPC分类号： G11B5/02
CPC分类号： H03M1/1042 , G11B20/10 , G11B2220/90
摘要： An apparatus, system, and method are disclosed for mitigating signal asymmetry. An analog to digital converter samples an analog signal from a read head and converts the sample to a digital input signal. The digital input signal addresses a look-up module, and the look-up module outputs a modified digital signal. The modified digital signal value is a specified function of the digital input signal value, wherein the specified function is configured to mitigate the asymmetry of the digital input signal. The modified digital signal value may be periodically recalculated to adjust for read head wear.

5. 发明申请

US20050251695A1 Tamper-resistant re-writable data storage media 失效
标题翻译：防篡改的可重写数据存储介质
公开(公告)号：US20050251695A1
公开(公告)日：2005-11-10
申请号：US10838807
申请日：2004-05-04
申请人： Glen Jaquette , Paul Greco
发明人： Glen Jaquette , Paul Greco
IPC分类号： G11B20/00 , G11B23/28 , G11B27/11 , G11B27/32
CPC分类号： G11B23/288 , G11B20/00086 , G11B20/00094 , G11B20/0021 , G11B27/11 , G11B27/328 , G11B2220/218 , G11B2220/655 , G11B2220/90
摘要： A cartridge handling system and method are provided to initialize a data storage cartridge having rewritable media and a cartridge memory for tamper resistant write once recording. During initialization of the cartridge for write once recording, selected data set information table fields of each data set are scrambled. The scrambling algorithm may employ a random number generator seeded with a unique cartridge identifier. The fields thus becomes unreadable if the unique identifier is changed, such as if the cartridge memory of the cartridge has been altered or replaced.
摘要翻译：提供盒式磁带处理系统和方法以初始化具有可重写介质的数据存储盒和用于防篡改一次记录的盒式存储器。在一次记录一次写入盒的初始化期间，每个数据集的所选数据集信息表字段被加扰。加扰算法可以采用种子具有唯一的盒标识符的随机数生成器。因此，如果改变了唯一标识符，例如如果盒的盒式存储器被更改或更换，则这些字段变得不可读。

6. 发明申请

US20080005412A1 Method, system, and apparatus for re-conveying input/output operations utilizing a sequential-access data storage device secondary communication port 有权
标题翻译：用于使用顺序存取数据存储装置辅助通信端口重新传送输入/输出操作的方法，系统和装置
公开(公告)号：US20080005412A1
公开(公告)日：2008-01-03
申请号：US11405796
申请日：2006-04-18
申请人： Paul Greco , Glen Jaquette , James Karp
发明人： Paul Greco , Glen Jaquette , James Karp
IPC分类号： G06F13/38
CPC分类号： G06F3/0647 , G06F3/061 , G06F3/0634 , G06F3/065 , G06F3/067 , G06F11/1451
摘要： A method, system, and apparatus for re-conveying input/output (I/O) operations utilizing a sequential-access data storage device secondary communication port are disclosed. In accordance with one embodiment, a method is provided which comprises receiving an input/output (I/O) operation request via a first communication port of a primary data storage device, processing the I/O operation request utilizing the primary data storage device, and re-conveying the I/O operation request to a secondary data storage device substantially simultaneously with the processing via a second communication port of the primary data storage device. In the described embodiment, the primary data storage device comprises a sequential-access data storage device.
摘要翻译：公开了一种使用顺序访问数据存储设备辅助通信端口重新传送输入/输出（I / O）操作的方法，系统和装置。根据一个实施例，提供了一种方法，其包括经由主数据存储装置的第一通信端口接收输入/输出（I / O）操作请求，使用主数据存储装置处理I / O操作请求，并且经由主数据存储装置的第二通信端口与所述处理基本同时地将I / O操作请求重新传送到辅助数据存储装置。在所描述的实施例中，主数据存储装置包括顺序访问数据存储装置。

7. 发明申请

US20060259274A1 Monitoring and reporting normalized device system performance 有权
标题翻译：监控和报告标准化的设备系统性能
公开(公告)号：US20060259274A1
公开(公告)日：2006-11-16
申请号：US11126911
申请日：2005-05-10
申请人： Paul Greco , Glen Jaquette
发明人： Paul Greco , Glen Jaquette
IPC分类号： G06F11/30
CPC分类号： G06F11/3485 , G06F11/3409 , G06F11/3452 , G06F2201/86 , G06F2201/88
摘要： Methods, apparatus and computer program products are provided to monitor and report performance data of a device such as a data storage drive. A plurality of quantitative values are obtained from feedback and measurement mechanisms in a data storage device of a first model during operation of the storage device. The plurality of quantitative values are normalized. Then, one or more qualitative values are generated from one or more normalized quantitative values and evaluated against corresponding baseline performance values established for the first model.
摘要翻译：提供了方法，装置和计算机程序产品来监视和报告诸如数据存储驱动器的设备的性能数据。在存储装置的操作期间，从第一模型的数据存储装置中的反馈和测量机构获得多个定量值。多个定量值被归一化。然后，从一个或多个归一化的定量值产生一个或多个定性值，并针对为第一模型建立的相应基线性能值进行评估。

8. 发明申请

US20060203373A1 Magnetic tape write once overwrite protection 有权
标题翻译：磁带写入一次重写保护
公开(公告)号：US20060203373A1
公开(公告)日：2006-09-14
申请号：US11076643
申请日：2005-03-10
申请人： Kirby Dahman , Paul Greco , Glen Jaquette , Steven Wallace
发明人： Kirby Dahman , Paul Greco , Glen Jaquette , Steven Wallace
IPC分类号： G11B19/02
CPC分类号： G11B23/288 , G11B15/07 , G11B23/042 , G11B23/107
摘要： A magnetic tape cartridge, a recording system, and a magnetic tape drive are configured to, for example, guard against tampering with a write once overwrite protection pointer which allows a rewritable magnetic tape to be treated as write once. In one embodiment, the magnetic tape cartridge comprises a magnetic tape and a cartridge memory. The magnetic tape is configured to provide at least one overwrite protection pointer, the overwrite protection pointer identifying data to be protected from being overwritten; and the cartridge memory is configured to provide the at least one overwrite protection pointer, the overwrite protection pointer identifying magnetic tape data to be protected from being overwritten.
摘要翻译：磁带盒，记录系统和磁带驱动器被配置为例如防止篡改写入一次重写保护指针，其允许可重写磁带被处理为一次写入。在一个实施例中，磁带盒包括磁带和盒式存储器。磁带被配置为提供至少一个覆盖保护指针，覆盖保护指针识别要被保护的数据不被覆盖; 并且盒存储器被配置为提供至少一个覆盖保护指针，所述覆盖保护指针标识要被保护的磁带数据不被重写。

9. 发明申请

US20060119969A1 Dynamically adapting a magnetic tape read channel equalizer 失效
标题翻译：动态调整磁带读通道均衡器
公开(公告)号：US20060119969A1
公开(公告)日：2006-06-08
申请号：US11003283
申请日：2004-12-03
申请人： Robert Hutchins , Glen Jaquette , Evangelos Eleftheriou , Sedat Oelcer
发明人： Robert Hutchins , Glen Jaquette , Evangelos Eleftheriou , Sedat Oelcer
IPC分类号： G11B5/035 , G11B20/10
CPC分类号： G11B20/10 , G11B5/02
摘要： A read channel equalizer of a magnetic tape drive which equalizes digitally sampled magnetic signals detected by a read head is dynamically adapted. A detector of equalizer dynamic adaptation logic compares equalizer output signals to desired values that are based on the decoding scheme (such as +2, 0 and −2 for PR4) to sense equalizer output signals that are offset from at least one desired value, and signals the fact of each offset and its polarity as amplitude independent error signals. The signaled sensed amplitude independent error signals are fed back to adjustable taps of the equalizer. The simplified error signals thus avoid complex calculations of waveform errors, such as least mean square calculations. The error signals may be weighted and may be adjusted to align synchronously provided error signals with asynchronous taps of the equalizer.
摘要翻译：磁头驱动器的读取通道均衡器，其均衡由读取头检测到的数字采样磁信号。均衡器动态适配逻辑的检测器将均衡器输出信号与基于解码方案（例如PR4的+2,0和-2）的期望值进行比较，以感测与至少一个期望值偏移的均衡器输出信号，以及将每个偏移及其极性的事实表示为与振幅无关的误差信号。信号感知的与振幅无关的误差信号反馈到均衡器的可调节抽头。因此，简化的误差信号避免了波形误差的复杂计算，例如最小均方根计算。误差信号可以被加权并且可以被调整以使同步提供的误差信号与均衡器的异步抽头对齐。

10. 发明申请

US20060085718A1 Interleaved recording of separated error correction encoded information 失效
标题翻译：分离的纠错编码信息的交错记录
公开(公告)号：US20060085718A1
公开(公告)日：2006-04-20
申请号：US10969652
申请日：2004-10-19
申请人： Glen Jaquette , Johnny Teale
发明人： Glen Jaquette , Johnny Teale
IPC分类号： H03M13/00
CPC分类号： H03M13/2903 , H03M13/27 , H03M13/2906
摘要： An error correction code system, e.g. of a magnetic tape drive, applies error correction redundancy to data, separates it, or interleaves it, and records it into separate groups. An error correction encoder applies an outer error correction code to one of the separate groups of information, forming one set of rows of information and outer ECC information. An error correction encoder applies an outer error correction code to another separate group of information, forming another set of rows of information and outer ECC information. A data organizer interleaves the one set of rows of information and outer ECC information with the another set of rows of information and outer ECC information for recording on tracks of a recording media in an interleaved pattern of one set of rows of information and outer ECC information with another set of rows of information and outer ECC information.
摘要翻译：纠错码系统，例如的磁带驱动器，对数据应用纠错冗余，将其分离或交错，并将其记录到单独的组中。纠错编码器将外部纠错码应用于单独信息组之一，形成一组信息行和外部ECC信息。纠错编码器将外部纠错码应用于另一单独的信息组，形成另一组信息行和外部ECC信息。数据管理器将一组信息行和外部ECC信息与另一组信息行和外部ECC信息进行交织，以便以一组信息行和外部ECC信息的交织模式记录在记录介质的轨道上与另一组信息行和外部ECC信息。

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