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公开(公告)号：US20080316634A1
公开(公告)日：2008-12-25
申请号：US12206089
申请日：2008-09-08
IPC分类号： G11B15/04
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。
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112.发明授权Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML viterbi detector 失效使用PRML维特比检测器的路径存储器的中间位开发的磁带读取通道信号值公开(公告)号：US07430084B2
公开(公告)日：2008-09-30
申请号：US11003316
申请日：2004-12-03
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10074 , G11B20/10296 , G11B2220/90
摘要： Magnetic tape read channel signal values are developed employing intermediate bits of the path memory of a PRML Viterbi detector. Identification logic identifies a most likely path memory state of the PRML Viterbi detector from the path metrics of the PRML Viterbi detector. An intermediate bit sequence of the identified most likely path memory state is obtained, the intermediate bit sequence extending from an initiation point of the path memory which is intermediate the output and the input of the PRML Viterbi detector. A sample value is determined which corresponds to the obtained intermediate bit sequence.
摘要翻译： 使用PRML维特比检测器的路径存储器的中间位来开发磁带读取通道信号值。 识别逻辑根据PRML维特比检测器的路径度量来识别PRML维特比检测器的最可能的路径存储状态。 获得所识别的最可能的路径存储器状态的中间比特序列，从位于PRML维特比检测器的输出和输入之间的路径存储器的起始点延伸的中间比特序列。 确定对应于获得的中间位序列的采样值。
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公开(公告)号：US20080123863A1
公开(公告)日：2008-05-29
申请号：US11557776
申请日：2006-11-08
CPC分类号： G06F21/6209 , G06F2221/2107
摘要： Access to encrypted data on a removable computer media such as a computer tape is controlled via a uniquely-structured header on the medium having a symmetrical key wrapped by asymmetrical encryption plus a public key associated with the asymmetrical encryption. The data on the medium is encrypted using the symmetrical key. Prior to automated reading of the data by a reader, a challenge is issued to a host system including the public key and preferably a nonce value. The host responds by signing the nonce using a private key associated with the public key in order to prove it has rights to decrypt the data. The symmetrical key is unwrapped using the private key, and finally the unwrapped symmetrical key is used to decrypt the data on the medium, thereby allowing automated reading of the tape data without the need or risk of two administrators sharing a symmetrical key value.
摘要翻译： 在诸如计算机磁带的可移动计算机介质上的加密数据的访问通过介质上的唯一结构化的报头来控制，所述报头具有由非对称加密以及与非对称加密相关联的公钥所包围的对称密钥。 介质上的数据使用对称密钥进行加密。 在读取器自动读取数据之前，向包括公开密钥的主机系统发出挑战，并且优选地是随机数值。 主机通过使用与公钥相关联的私有密钥签名该随机数来进行响应，以证明其具有解密数据的权限。 使用私钥解密对称密钥，最后使用解开的对称密钥来解密介质上的数据，从而允许自动读取磁带数据，而无需两个管理员共享对称密钥值的风险。
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114.发明授权公开(公告)号：US07236322B2
公开(公告)日：2007-06-26
申请号：US10645754
申请日：2003-08-20
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 program for writing data in a tape medium having wraps. A layout of the tape is provided including at least one segment within a full available length of a 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 and detecting is performed as to whether the data being written is occurring in a specified write mode. If the data writing is not occurring in the specified write mode, then writing the received user data to one segment in the first set of wraps. If the data writing is occurring in the specified write mode, then writing a work copy to available full length wraps not having user data.
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，系统和程序。 提供磁带的布局，其包括用于写入用户数据的第一组包装的完整可用长度内的至少一个片段和用于写入用户工作副本的第二组包装的全长内的至少一个片段 数据。 接收用户数据以写入磁带介质，并且检测是否正在以指定的写入模式发生被写入的数据。 如果在指定的写入模式下不发生数据写入，则将接收的用户数据写入第一组包装中的一个段。 如果数据写入在指定的写入模式下发生，则将工作副本写入可用的全长包装，而不具有用户数据。
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115.发明授权Storing data to magnetic tape both to one set of tracks and in the same operation rewritten to another set of tracks 失效将数据存储到磁带两个到一组磁道，并在相同的操作中重写到另一组磁道公开(公告)号：US07119974B2
公开(公告)日：2006-10-10
申请号：US11200883
申请日：2005-08-11
申请人： Glen Alan Jaquette
发明人： Glen Alan Jaquette
IPC分类号： G11B5/09
CPC分类号： G11B15/005 , G11B5/00813 , G11B5/4893 , G11B5/584 , G11B5/86 , G11B15/04 , G11B15/125 , G11B20/10 , G11B2020/1062 , G11B2020/10962
摘要： A recording system of a magnetic tape drive is operated to cause one separate set of write heads to write data discontinuously to magnetic tape as received, and to save the data, and, during the same operation, to cause another separate set of write heads to rewrite data to magnetic tape in a continuous arrangement. The writing may be in parallel and simultaneous. Thus, during the same operation, and at the same time, the separate sets of the plurality of write heads, temporarily write the received data to magnetic tape so that the sender can erase its copy, and rewrite the saved data to the magnetic tape in a permanent arrangement, without waiting to complete first writing received data, to complete subsequently rewriting the data, and repeating.
摘要翻译： 操作磁带驱动器的记录系统以使一组单独的写入头不连续地将数据写入到磁带上，并且保存数据，并且在相同的操作期间，使另一组独立的写入头 以连续的方式将数据重写到磁带。 写作可能并行并行。 因此，在相同的操作期间，并且同时，多个写入头的单独集合暂时将接收到的数据写入磁带，使得发送者可以擦除其副本，并将保存的数据重写到磁带上 永久安排，不等待完成首次写入收到的数据，完成后续重写数据，并重复。
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公开(公告)号：US07107397B2
公开(公告)日：2006-09-12
申请号：US10447899
申请日：2003-05-29
IPC分类号： G06F12/00
CPC分类号： G06F3/0682 , G06F3/0613 , G06F3/0656 , G11B5/00813 , G11B20/10527 , G11B2020/10703
摘要： A sequential buffer for a magnetic tape data storage system comprises a plurality of segments. A buffer management system buffers data in the sequential buffer, conducting a data transfer process. Subsequently, some of the buffered data is maintained in some, but less than all, the segments of the buffer. Additionally, the maintained buffered data is indicated as VALID data. Thus, a subsequent process may be conducted directly using the data maintained in the buffer, and avoids moving the tape to reread the data.
摘要翻译： 用于磁带数据存储系统的顺序缓冲器包括多个段。 缓冲器管理系统缓冲顺序缓冲器中的数据，进行数据传输过程。 随后，一些缓冲的数据被保持在缓冲器的一些但是小于全部的段中。 另外，维护的缓冲数据被指示为VALID数据。 因此，可以使用缓冲器中保存的数据直接进行后续处理，并且避免移动磁带以重新读取数据。
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117.发明授权公开(公告)号：US07003111B2
公开(公告)日：2006-02-21
申请号：US09977161
申请日：2001-10-11
申请人： Glen Alan Jaquette
发明人： Glen Alan Jaquette
IPC分类号： G06F17/00
CPC分类号： G06F21/6209
摘要： Provided is a method, system, and program for encoding and decoding input data. A key is generated comprising a list of a plurality of binary values, wherein the key is available to a user during decoding. The input data is encoded by using the key to initialize a replacement list. A determination is made whether to replace strings in the input data with a string reference to a matching string value, wherein the input data not replaced with reference to one matching string value comprises one or more literals. Each literal is replaced with a literal reference to one entry in the replacement list matching the literal. The encoded input data is decoded by accessing the generated key in response to user input and using the accessed key to decode the literals replaced with literal references to entries in the replacement list.
摘要翻译： 提供了用于对输入数据进行编码和解码的方法，系统和程序。 产生包括多个二进制值的列表的密钥，其中密钥在解码期间对于用户是可用的。 输入数据通过使用键来初始化替换列表进行编码。 确定是否使用对匹配的字符串值的字符串引用替换输入数据中的字符串，其中不替换为参考一个匹配字符串值的输入数据包括一个或多个字面值。 每个字面值替换为与文字匹配的替换列表中的一个条目的文字引用。 通过响应于用户输入访问生成的密钥来解码编码的输入数据，并且使用所访问的密钥来解码用替代列表中的条目的文字引用替换的文字。
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118.发明授权公开(公告)号：US06985320B2
公开(公告)日：2006-01-10
申请号：US10037753
申请日：2002-01-02
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B5/00813 , G11B5/09 , G11B20/1426 , G11B2020/1434 , G11B2020/1446
摘要： Provided is a method, system, and program for storing input groups of uncoded binary data on a storage medium. A plurality of uncoded data blocks in a data stream are received. An encoded data stream is obtained from concatenating successive encoded blocks such that the encoded data stream includes a predetermined bit pattern comprising a plurality of bits. The bit pattern always occurs within a first number of bits and two occurrences of a “1” or “0” occur within a second number of bits. The encoded data blocks are stored on the storage medium.
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公开(公告)号：US06834347B2
公开(公告)日：2004-12-21
申请号：US10425967
申请日：2003-04-29
IPC分类号： G06F1130
CPC分类号： G06F21/572 , G06F21/10 , G06F21/6218
摘要： Authentication of an upgrade to computer readable program code of a target embedded device is accomplished by causing the computer processor of the embedded device to access an unique machine identifier; to access an identifier key associated with the upgrade; to process the identifier key and/or unique machine identifier, such as by decrypting the key and/or encrypting the identifier; to compare the identifier key with the unique machine identifier; and causing the computer processor, if the identifier key matches the unique machine identifier, to enable the upgrade; else, to fail the upgrade.
摘要翻译： 通过使嵌入式设备的计算机处理器访问唯一的机器标识符来实现对目标嵌入式设备的计算机可读程序代码的升级的认证; 访问与升级相关联的标识符密钥; 例如通过解密密钥和/或加密标识符来处理标识符密钥和/或唯一的机器标识符; 将标识符密钥与唯一的机器标识符进行比较; 并且如果所述标识符密钥与所述唯一机器标识符匹配，则使所述计算机处理器启用所述升级; 否则，升级失败。
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120.发明授权Adjusting a read detection equalizer filter of a magnetic tape drive employing a recording format required control pattern 有权调整采用记录格式所需控制模式的磁带驱动器的读取检测均衡器滤波器公开(公告)号：US06765741B2
公开(公告)日：2004-07-20
申请号：US10302885
申请日：2002-11-25
IPC分类号： G11B5035
CPC分类号： G11B5/035
摘要： Adjustment of a read detection equalizer filter of a magnetic tape drive is conducted utilizing a required control pattern signal which comprises a required portion of a normal recording format of the magnetic tape. An example comprises a data set separator signal. The sensed required control pattern signal is processed with respect to a target reference pattern signal to adapt the read detection equalizer filter to the target reference pattern signal.
摘要翻译： 使用包括磁带的正常记录格式的所需部分的所需控制模式信号来进行磁带驱动器的读检测均衡器滤波器的调整。 示例包括数据集分离器信号。 感测到的所需控制模式信号相对于目标参考模式信号被处理，以使读取的检测均衡器滤波器适应于目标参考模式信号。
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