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    OPTIMUM TAPE LAYOUT SELECTION FOR IMPROVED ERROR CORRECTION CAPABILITY
    2.
    发明申请
    OPTIMUM TAPE LAYOUT SELECTION FOR IMPROVED ERROR CORRECTION CAPABILITY 有权
    用于改进错误校正能力的最佳色带布局选择

    公开(公告)号：US20150015982A1

    公开(公告)日：2015-01-15

    申请号：US13942581

    申请日：2013-07-15

    Applicant: International Business Machines Corporation

    Inventor： Roy D. Cideciyan ,  Robert A. Hutchins ,  Thomas Mittelholzer

    IPC: G11B5/008

    CPC classification number: G11B20/1205 ,  G11B5/00813 ,  G11B5/00817 ,  G11B20/1833 ,  G11C29/00 ,  H03M13/293

    Abstract: According to one embodiment, a system for selecting an optimum tape layout to store data on a tape medium may include a processor and logic integrated with and/or executable by the processor, the logic being configured to: select a family of data set layouts based on parameters associated with at least a tape drive and the tape medium, compute a set of all minimum distances for the selected family of data set layouts, calculate a first performance metric associated with each possible set of parameters, select a best first performance metric from all calculated first performance metrics and store a set of parameters associated with the best first performance metric, and select a data set layout algorithm which utilizes the set of parameters associated with the best first performance metric, wherein the data set layout algorithm and a rewrite layout algorithm combine to form an optimum tape layout.

    Abstract translation: 根据一个实施例，用于选择最佳磁带布局以在磁带介质上存储数据的系统可以包括与处理器集成和/或可执行的处理器和逻辑，该逻辑被配置为：基于数据集布局系列 在与至少一个磁带驱动器和磁带介质相关的参数上计算所选择的数据集布局系列的所有最小距离的集合，计算与每个可能参数集相关联的第一性能度量，从 所有计算的第一性能度量并存储与最佳第一性能度量相关联的一组参数，并且选择利用与最佳第一性能度量相关联的参数集合的数据集布局算法，其中所述数据集布局算法和重写布局 算法组合形成最佳磁带布局。

    Multiple partition tape cartridge detection means
    3.
    发明授权
    Multiple partition tape cartridge detection means 失效
    多分隔带盒检测手段

    公开(公告)号：US6031698A

    公开(公告)日：2000-02-29

    申请号：US950456

    申请日：1997-10-15

    Applicant: Refael Bar

    Inventor： Refael Bar

    IPC: G06F3/06 ,  G11B5/78 ,  G11B20/12

    CPC classification number: G06F3/0682 ,  G06F3/0613 ,  G06F3/0632 ,  G11B20/1205

    Abstract: A tape cartridge has a tape detection means embedded therein. The tape detection means comprises a plurality of tape identification holes, preferably in octal 06 arrangement, and a single load point hole located about 30 inches from the nearest set of beginning of tape holes. A method of detecting a tape cartridge with a tape detection means embedded therein comprises the steps of: locating a set of beginning of tape holes; locating a load point hole that is 30 inches from the nearest set of beginning of tape holes; measuring the length of tape between the load point hole and the beginning of tape holes; if the length of tape is between 28 and 32 inches determining whether tape identification holes in octal 06 arrangement are present; and identifying the tape as a valid tape cartridge if the length of tape is between 28 and 32 inches and tape identification holes in octal 06 arrangement are present. An apparatus for detecting a tape cartridge with a tape detection means embedded therein comprises a tape identification transducer for reading and scanning for the tape detection data and a microprocessor electrically connected to the tape identification transducer for responding to signals from the transducer.

    Abstract translation: 磁带盒具有嵌入其中的磁带检测装置。 磁带检测装置包括多个磁带识别孔，优选地为八进制06布置，以及位于离磁带孔最近一组开始约30英寸的单个载荷点孔。 一种用嵌入式磁带检测装置检测带盒的方法包括以下步骤：定位一组磁带孔的开头; 定位距离最近的一组开始磁带孔30英寸的载荷点孔; 测量载荷点孔和带孔开头之间的带长度; 如果磁带的长度在28到32英寸之间，则确定是否存在八进制06排列的磁带识别孔; 并且如果磁带长度在28和32英寸之间并且存在具有八进制06排列的磁带识别孔，则将磁带识别为有效的磁带盒。 用于检测具有嵌入其中的带检测装置的带盒的装置包括用于读取和扫描带检测数据的带识别换能器，以及电连接到带识别换能器的微处理器，用于响应来自换能器的信号。

    Control of record media using device only accessible control areas and directory of media control marks and error history
    6.
    发明授权
    Control of record media using device only accessible control areas and directory of media control marks and error history 失效
    使用设备的记录媒体的控制只能访问控制区域和媒体控制标记和错误历史的目录

    公开(公告)号：US5613082A

    公开(公告)日：1997-03-18

    申请号：US77478

    申请日：1993-06-14

    Applicant: Michael A. Brewer ,  Alex Chliwnyj ,  Dale A. Christiansen ,  James W. Wolf ,  Will A. Wright

    Inventor： Michael A. Brewer ,  Alex Chliwnyj ,  Dale A. Christiansen ,  James W. Wolf ,  Will A. Wright

    IPC: G06F3/06 ,  G11B5/008 ,  G11B15/02 ,  G11B20/12 ,  G11B20/18 ,  G11B23/36 ,  G11B27/00 ,  G11B27/10 ,  G11B27/11 ,  G11B27/13 ,  G11B27/28 ,  G11B27/32 ,  G11B27/36 ,  G06F9/26 ,  G06F9/34 ,  G06F12/00 ,  G06F12/02

    CPC classification number: G06F3/0601 ,  G11B15/02 ,  G11B20/1205 ,  G11B20/1883 ,  G11B23/36 ,  G11B27/107 ,  G11B27/11 ,  G11B27/13 ,  G11B27/28 ,  G11B27/328 ,  G11B27/36 ,  G11B5/00817 ,  G06F2003/0698 ,  G11B2220/41 ,  G11B2220/65 ,  G11B2220/90 ,  G11B2220/95

    Abstract: A data storage system includes a data storage medium, such as a magnetic tape, that has a first control data storing area or drive partition that is addressable only by a peripheral drive mounting the medium and a plurality of other addressable data storing partitions for storing data. A volume table of contents may be stored in one of the addressable partitions. A tachometer measures and indicates physical locations on the storage medium. Each of the partitions have an extent on the storage medium indicated by said physical locations. The control data in the drive partition includes directories of medium control blocks, such as tape marks, defect marks and the like; directory of all addressable partitions including the physical locations at the beginning of each partitions and other medium physical and logical parameter data. A so-called mount-demount medium control block in the drive partition indicates a demount status that shows all data stored in the drive partition is valid. Loading a storage medium into a drive does not mount the drive for recording and reading. First, a copy of the drive partition stored data is copied to a memory in the peripheral drive and the mount-demount medium control block is marked to indicate the storage medium is mounted. Then, the peripheral drive can indicate to an attaching unit that the storage medium is mounted for use in data processing activities.

    Abstract translation: 数据存储系统包括诸如磁带的数据存储介质，其具有只能由安装介质的外围驱动器寻址的第一控制数据存储区域或驱动器分区以及用于存储数据的多个其他可寻址数据存储分区 。 内容卷可以存储在可寻址分区之一中。 转速计测量并指示存储介质上的物理位置。 每个分区在由所述物理位置指示的存储介质上具有范围。 驱动器分区中的控制数据包括诸如磁带标记，缺陷标记等介质控制块的目录; 所有可寻址分区的目录，包括每个分区开始处的物理位置和其他中等物理和逻辑参数数据。 驱动器分区中的所谓安装拆卸介质控制块表示显示驱动器分区中存储的所有数据有效的卸载状态。 将存储介质加载到驱动器中不会安装用于记录和读取的驱动器。 首先，将驱动器分区存储的数据的副本复制到外围驱动器中的存储器，并且装载 - 拆卸介质控制块被标记以指示存储介质被安装。 然后，外围驱动器可以向附着单元指示存储介质被安装用于数据处理活动。

    Method and apparatus for determining the format of a magnetic tape and for presetting a magnetic head to a reference track thereof
    8.
    再颁专利
    Method and apparatus for determining the format of a magnetic tape and for presetting a magnetic head to a reference track thereof 失效
    用于确定磁带格式并用于将磁头预设到其参考轨道的方法和装置

    公开(公告)号：USRE35205E

    公开(公告)日：1996-04-09

    申请号：US286812

    申请日：1994-08-05

    Applicant: Refael Bar

    Inventor： Refael Bar

    IPC: G06F3/06 ,  G11B5/008 ,  G11B5/55 ,  G11B15/087 ,  G11B20/10 ,  G11B20/12 ,  G11B23/34 ,  G11B27/22 ,  G11B27/30 ,  H04N5/783

    CPC classification number: G06F3/0601 ,  G11B15/087 ,  G11B20/10 ,  G11B20/1204 ,  G11B20/1205 ,  G11B23/34 ,  G11B27/22 ,  G11B27/3027 ,  G11B5/00878 ,  G11B5/5508 ,  G06F2003/0698

    Abstract: A magnetic tape drive has firmware which has been modified so that the drive will read both standard formal tapes and non-standard format tapes. Non-standard tapes are detected by an absence of reference bursts in the load zone of the tape. The head is moved to successive tracks toward the edge of the tape until no data is read. This identifies the track near the edge of the tape. Then, the head is preset to a track which is a known distance from the edge of the tape. Reading of non-standard tapes is accomplished by disabling the index pulse generator in the intervals between data segments. The performance of a SKIP COMMAND is made possible by counting the transitions of data to no data during the intervals between data segments. The identification of different types of non-standard formats is made by determining the length of the data segments.

    Abstract translation: 磁带驱动器具有已修改的固件，以便驱动器将读取标准正式磁带和非标准格式磁带。 通过在磁带的加载区中不存在参考突发来检测非标准磁带。 头部朝向磁带边缘的连续轨道移动，直到没有读取数据。 这标识磁带边缘附近的轨道。 然后，头部被预设到与磁带边缘已知距离的轨道上。 通过在数据段之间的间隔中禁用索引脉冲发生器来实现非标准磁带的读取。 通过在数据段之间的间隔期间将数据的转换计数为无数据，可以实现SKIP COMMAND的性能。 通过确定数据段的长度来确定不同类型的非标准格式。

    Format and method for recording optimization
    9.
    发明授权
    Format and method for recording optimization 失效
    记录优化的格式和方法

    公开(公告)号：US5485321A

    公开(公告)日：1996-01-16

    申请号：US176162

    申请日：1993-12-29

    Applicant: Michael L. Leonhardt ,  Charles A. Milligan

    Inventor： Michael L. Leonhardt ,  Charles A. Milligan

    IPC: G06F3/06 ,  G11B5/008 ,  G11B15/12 ,  G11B15/60 ,  G11B20/12 ,  G11B23/18 ,  G11B27/30 ,  G11B27/32 ,  G11B5/09

    CPC classification number: G06F3/0601 ,  G11B15/12 ,  G11B15/60 ,  G11B20/1205 ,  G11B23/18 ,  G11B27/30 ,  G11B27/32 ,  G11B27/323 ,  G11B27/328 ,  G11B5/00817 ,  G06F2003/0698 ,  G11B2220/90 ,  G11B2220/95

    Abstract: A performance optimized computer data recording media format and associated control logic method is disclosed. Localized data block recording, such as by concurrent parallel or serpentine recording techniques, is used to create a series of Virtual Volumes on a single physical volume. Physical localization of data blocks records is achieved which tends to minimize access time. Using the Virtual Volume construct, other industry standard data storage systems can be emulated. Many data storage operations requesting physical motion are translated into virtual motion which in turn results in significantly less physical motion than that requested, thereby reducing access times and media and drive apparatus wear.

    Abstract translation: 公开了一种性能优化的计算机数据记录媒体格式和相关控制逻辑方法。 本地化数据块记录，例如通过并行并行或蛇形记录技术，用于在单个物理卷上创建一系列虚拟卷。 实现数据块记录的物理定位，这倾向于最小化访问时间。 使用虚拟卷构造，可以模拟其他工业标准数据存储系统。 请求物理运动的许多数据存储操作被转换为虚拟运动，这进而导致比所请求的物理运动显着更少的物理运动，从而减少访问时间和媒体以及驱动装置磨损。

    System and method for encoding and storing digital information on magnetic tape
    10.
    发明授权
    System and method for encoding and storing digital information on magnetic tape 失效
    用于在磁带上编码和存储数字信息的系统和方法

    公开(公告)号：US4796110A

    公开(公告)日：1989-01-03

    申请号：US830559

    申请日：1986-02-18

    Applicant: Edward N. Glass ,  Wayne Stark

    Inventor： Edward N. Glass ,  Wayne Stark

    IPC: G11B20/12 ,  G11B20/18 ,  G11B5/09 ,  H03M13/00

    CPC classification number: G11B20/1809 ,  G11B20/1205 ,  G11B20/1202 ,  G11B2220/90

    Abstract: The specification discloses a system and method for storing digital information on a magnetic tape wherein redundant information is generated and also stored so that subsequently unreadable portions of the tape can be regenerated based on the readable portions. The tape is formatted to include a plurality of sequentially arranged blocks, each including a plurality of generally identical data sectors and error-correction sectors. The placement of the data sectors and the associated error-correction sectors within a common block facilitates, and increases the speed of, tape writes and reads. Preferably, a Reed-Solomon code is utilized to generate the redundant information in the error-correction sectors as a preferred balance between recoverability, tape overhead, and speed of encoding.

    Abstract translation: 本说明书公开了一种用于在磁带上存储数字信息的系统和方法，其中产生冗余信息并且还被存储，使得可以基于可读部分重新生成磁带的随后的不可读部分。 磁带被格式化为包括多个顺序排列的块，每个块包括多个大致相同的数据扇区和纠错扇区。 将数据扇区和相关联的纠错扇区放置在公共块内有助于并提高磁带写入和读取的速度。 优选地，使用Reed-Solomon码来产生纠错扇区中的冗余信息，作为可恢复性，磁带开销和编码速度之间的优选平衡。

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