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1. 发明申请

US20110107187A1 High Density Tape Drive Multi-Channel Low Density Parity Check Coding Control 有权
标题翻译：高密度磁带驱动多通道低密度奇偶校验编码控制
公开(公告)号：US20110107187A1
公开(公告)日：2011-05-05
申请号：US12611326
申请日：2009-11-03
申请人： Richard A. Gill , Jin Lu
发明人： Richard A. Gill , Jin Lu
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1102 , H03M13/27 , H04L1/0057 , H04L2001/0096
摘要： An LDPC coding system includes a number of LDPC encoders and a number of LDPC decoders. The number of encoders/decoders is between one and one fewer than the total number of tracks on the high density tape are provided. The LDPC encoders are operable to break data from an incoming data sector into the data blocks to be written to the high density tape. The LDPC decoders are operable to assemble the data blocks into data sectors.
摘要翻译： LDPC编码系统包括多个LDPC编码器和多个LDPC解码器。编码器/解码器的数量比提供高密度磁带的总轨道数少1到1个。 LDPC编码器可操作以将来自输入数据扇区的数据分解成要写入高密度磁带的数据块。 LDPC解码器可操作以将数据块组装成数据扇区。

2. 发明授权

US06906888B1 Method for write track placement correction 有权
标题翻译：写轨道位置校正方法
公开(公告)号：US06906888B1
公开(公告)日：2005-06-14
申请号：US10151829
申请日：2002-05-20
申请人： Steven G. Trabert , Richard A. Gill
发明人： Steven G. Trabert , Richard A. Gill
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A method for correcting data track placement in a magnetic tape drive is provided. The invention comprises writing at least one data track on a magnetic tape, wherein the data track is written in a location determined by tracking a servo track on the tape. The tape drive reads the data track(s) at a plurality of offset positions, wherein each offset position is determined by deviating the servo track a specified distance from a servo reader. An optimal offset position is then determined based on collected read error data versus offset position data. During subsequent write operations, tapes are offset according to the optimal offset position.
摘要翻译：提供了一种用于校正磁带驱动器中的数据轨道放置的方法。本发明包括在磁带上写入至少一个数据磁道，其中数据磁道被写入通过跟踪磁带上的伺服磁道所确定的位置。磁带驱动器在多个偏移位置读取数据磁道，其中每个偏移位置通过使伺服磁道偏离伺服读取器的指定距离来确定。然后，基于收集的读取错误数据与偏移位置数据确定最佳偏移位置。在随后的写入操作期间，磁带根据最佳偏移位置偏移。

3. 发明授权

US06608730B1 Appended data recording on magnetic tape 有权
标题翻译：在磁带上附加数据记录
公开(公告)号：US06608730B1
公开(公告)日：2003-08-19
申请号：US09443580
申请日：1999-11-18
申请人： Richard A. Gill
发明人： Richard A. Gill
IPC分类号： G11B1518
CPC分类号： G11B15/1875 , G11B15/087 , G11B15/125
摘要： Reducing the gap distance between existing data and appended blocks increases the information density written onto magnetic tape. A narrow gap spacing may be achieved by reading the existing block of data with a read module leading the write module in the tape direction. The end of the existing data is determined from data read by the leading read module. Delaying appending data by a gap period introduces the gap between the existing block of data and the new block of data to be appended. The new block of data is written following the gap and verified by reading with a read module following the write module in the tape direction.
摘要翻译：减少现有数据和附加块之间的间隙距离增加写入磁带的信息密度。通过读取带有方向上的写入模块的读取模块来读取现有的数据块，可以实现窄的间隙间隔。现有数据的结束由前导读取模块读取的数据确定。通过差距期延迟追加数据引入了现有的数据块和要附加的新的数据块之间的差距。新的数据块按照间隙进行写入，并通过在磁带方向上的写入模块之后读取读取模块进行读取来验证。

4. 发明授权

US06557141B1 Magnetic media certification 有权
标题翻译：磁性媒体认证
公开(公告)号：US06557141B1
公开(公告)日：2003-04-29
申请号：US09452519
申请日：1999-12-01
申请人： Richard A. Gill , Roger D. Hayes
发明人： Richard A. Gill , Roger D. Hayes
IPC分类号： G11C2900
CPC分类号： G11B20/1879 , G11B19/04 , G11B20/1816
摘要： Write on the fly certification of magnetic media includes detecting the start of a defect. A sequence of defect matrices is written over the defect with a write element in a read-after-write head. Each defect matrix in the sequence is read with a read element in the read-after-write head. A check is made to determine if an error exists in the data read from each defect matrix. The defect is determined to extend through each defect matrix if an error exists in the read data.
摘要翻译：写入磁性介质的飞行认证包括检测缺陷的开始。一个缺陷矩阵序列被写入写入头中的写入元件写入缺陷。序列中的每个缺陷矩阵都在读写头中读取一个读取元素。进行检查以确定从每个缺陷矩阵读取的数据中是否存在错误。如果读取数据中存在错误，则确定缺陷延伸通过每个缺陷矩阵。

5. 发明授权

US06288862B1 Method and mechanism to distinguish valid from outdated recording blocks in a tape drive 失效
标题翻译：在磁带驱动器中区分有效和过时的记录块的方法和机制
公开(公告)号：US06288862B1
公开(公告)日：2001-09-11
申请号：US09364496
申请日：1999-07-30
申请人： Benjamin Joseph Baron , Richard A. Gill , James Wolf
发明人： Benjamin Joseph Baron , Richard A. Gill , James Wolf
IPC分类号： G11B509
CPC分类号： G11B27/3027 , G11B27/032 , G11B27/036 , G11B27/322 , G11B2220/20 , G11B2220/90
摘要： A method and a mechanism enabling the method are described to aid in distinguishing new information from old information on a medium. A new variable called a Master Write Pass Count is created for the medium. The Master Write Pass Count is initialized once, advanced on each occasion that new information is written in the medium, and it is never reinitialized or regressed. During each write session the Master Write Pass Count is copied into a Write Pass Count variable associated with each block receiving the new information. The Write Pass Counts may be stored in the header or trailer of the associated block, or external to the block. When the blocks are read from the medium, the Write Pass Counts may be used alone, or in combination with other information associated with the blocks, such as a block identification number, to aid in distinguishing new information from old information.
摘要翻译：描述了使该方法能够实现的方法和机制，以帮助将新信息与媒体上的旧信息区分开来。为介质创建一个称为主写通过计数的新变量。主写通行证计数被初始化一次，每次高级时，新信息都写在介质中，并且它不会被重新初始化或退化。在每个写入会话期间，主写入通过计数被复制到与接收新信息的每个块相关联的写入传递计数变量中。写通过计数可以存储在相关块的头部或尾部，或者在块的外部。当从介质读取块时，可以单独使用写通过计数，或者与与块相关联的其他信息（例如块标识号）组合使用，以帮助区分新信息和旧信息。

6. 发明授权

US5764431A Media velocity detection for a capstanless tape transport 失效
标题翻译：用于无卷轴磁带传输的介质速度检测
公开(公告)号：US5764431A
公开(公告)日：1998-06-09
申请号：US243491
申请日：1994-05-16
申请人： Richard A. Gill
发明人： Richard A. Gill
IPC分类号： G11B15/52 , G11B15/46
CPC分类号： G11B15/52
摘要： An apparatus and method are disclosed for detecting the velocity of a tape in a tape transport system having a write head and a read head separated by a known distance and formatting the tape using marks. The tape transport system generates a write signal indicating when one of the marks is written to the tape by the write head and a read signal indicating when one of the marks is read from the tape by the read head. An accumulator determines the amount of time between the write signal and the read signal. A velocity detector determines the velocity of the tape based on said time determined by the accumulator and the known distance between the write head and the read head.
摘要翻译：公开了一种用于检测带传送系统中带的速度的装置和方法，所述带传送系统具有以已知距离分隔的写入头和读取头，并且使用标记格式化所述带。磁带传送系统产生一个写入信号，指示其中一个标记何时由写入头写入磁带，以及一个读取信号，指示何时通过读取磁头从磁带读取一个标记。累加器确定写入信号和读取信号之间的时间量。速度检测器基于由累加器确定的所述时间和写入头与读取头之间的已知距离来确定磁带的速度。

7. 发明授权

US08316281B2 High density tape drive multi-channel low density parity check coding control 有权
标题翻译：高密度磁带机多通道低密度奇偶校验编码控制
公开(公告)号：US08316281B2
公开(公告)日：2012-11-20
申请号：US12611326
申请日：2009-11-03
申请人： Richard A. Gill , Jin Lu
发明人： Richard A. Gill , Jin Lu
IPC分类号： G06F11/00
CPC分类号： H03M13/1102 , H03M13/27 , H04L1/0057 , H04L2001/0096
摘要： An LDPC coding system includes a number of LDPC encoders and a number of LDPC decoders. The number of encoders/decoders is between one and one fewer than the total number of tracks on the high density tape are provided. The LDPC encoders are operable to break data from an incoming data sector into the data blocks to be written to the high density tape. The LDPC decoders are operable to assemble the data blocks into data sectors.
摘要翻译： LDPC编码系统包括多个LDPC编码器和多个LDPC解码器。编码器/解码器的数量比提供高密度磁带的总轨道数少1到1个。 LDPC编码器可操作以将来自输入数据扇区的数据分解成要写入高密度磁带的数据块。 LDPC解码器可操作以将数据块组装成数据扇区。

8. 发明申请

US20070294461A1 Method and system for increasing recording format reliability for limited media space in a tape drive system 有权
标题翻译：用于增加磁带驱动系统中有限媒体空间的记录格式可靠性的方法和系统
公开(公告)号：US20070294461A1
公开(公告)日：2007-12-20
申请号：US11454497
申请日：2006-06-16
申请人： Richard A. Gill , James Wolf , Randy Allen Fout , Roger D. Hayes
发明人： Richard A. Gill , James Wolf , Randy Allen Fout , Roger D. Hayes
IPC分类号： G06F3/06
CPC分类号： G06F3/0638 , G06F3/061 , G06F3/0682 , G11B5/00813 , G11B20/1201 , G11B20/18 , G11B20/1866
摘要： A method for increasing recording format reliability in a tape drive system is disclosed. In one embodiment, the method includes identifying a default media information region (MIR) on a media, wherein the default MIR includes MIR information divided into segments, reading the MIR information, rotating the MIR information into a first rotation MIR information by rotating the segments by one segment; and writing the first rotation MIR information into a first MIR on the media. Other embodiments are also disclosed.
摘要翻译：公开了一种提高磁带驱动系统中的记录格式可靠性的方法。在一个实施例中，该方法包括在媒体上识别默认媒体信息区域（MIR），其中默认MIR包括被划分成段的MIR信息，读取MIR信息，通过旋转片段将MIR信息旋转成第一旋转MIR信息一段; 并将第一旋转MIR信息写入介质上的第一MIR。还公开了其他实施例。

9. 发明授权

US07006317B1 Dynamically allocated parallel equalization and detection of a PRML read channel in a multi-channel drive 有权
标题翻译：在多通道驱动中动态分配PRML读通道的并行均衡和检测
公开(公告)号：US07006317B1
公开(公告)日：2006-02-28
申请号：US10729646
申请日：2003-12-05
申请人： Mark Hennecken , Richard A. Gill , Keith Boyer
发明人： Mark Hennecken , Richard A. Gill , Keith Boyer
IPC分类号： G11B5/035
CPC分类号： G11B20/10009 , G11B20/10055 , G11B2220/90
摘要： A tape drive for use with magnetic tapes includes a housing for receiving a magnetic tape having multiple parallel tracks, and a tape head for reading and writing the parallel tracks of the magnetic tape. A plurality of partial response maximum likelihood (PRML) equalization/detection channels are provided for processing the data signals to determine the data stream for each data signal. The plurality of PRML equalization/detection channels includes at least one PRML equalization/detection channel pre-assigned to each track. The plurality of PRML equalization/detection channels further includes at least one floating PRML equalization/detection channel dynamically assignable on an as-needed basis. The invention also contemplates an ASIC, a generic drive, and a PRML method.
摘要翻译：用于磁带的磁带驱动器包括用于接收具有多个平行磁道的磁带的壳体和用于读取和写入磁带的平行磁道的磁带头。提供多个部分响应最大似然（PRML）均衡/检测通道用于处理数据信号以确定每个数据信号的数据流。多个PRML均衡/检测通道包括预分配给每个轨道的至少一个PRML均衡/检测通道。多个PRML均衡/检测通道进一步包括至少一个根据需要可动态分配的浮动PRML均衡/检测通道。本发明还考虑了ASIC，通用驱动器和PRML方法。

10. 发明授权

US06650495B2 Recording error history embedded rewriteable media 有权
公开(公告)号：US06650495B2
公开(公告)日：2003-11-18
申请号：US10174551
申请日：2002-06-18
申请人： Richard A. Gill , Benjamin J. Baron
发明人： Richard A. Gill , Benjamin J. Baron
IPC分类号： G11B2018
CPC分类号： G11B19/04 , G11B20/1816 , G11B27/3027 , G11B27/36 , G11B2020/10592 , G11B2020/183 , G11B2220/90
摘要： A system for recording the history associated with writing data onto rewriteable media includes an access head for writing data onto the media and reading data from the media. A drive motor moves the media past the access head. A write formatter formats data into a device block to be written onto the media. A read formatter detects errors in data read from the media. A control unit determines an error recovery procedure based on an error detected in reading the media and enables the write formatter to insert an indication of the error recovery procedure into the device block. The error recovery procedure is then attempted. The process is repeated until either a successful write occurs or the media is determined to be bad.

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