知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

196 records (took 0.028 seconds)

    ERASING RECORDED DATA BY UTILIZING READ HEAD AND WRITE HEAD
    2.
    发明申请
    ERASING RECORDED DATA BY UTILIZING READ HEAD AND WRITE HEAD 有权
    通过使用读取头和写头来擦除记录的数据

    公开(公告)号：US20150371674A1

    公开(公告)日：2015-12-24

    申请号：US14719361

    申请日：2015-05-22

    Applicant: International Business Machines Corporation

    Inventor： Masayuki Iwanaga ,  Yumiko Ohta ,  Yutaka Oishi

    IPC: G11B15/04 ,  G11B5/008 ,  G11B20/18

    CPC classification number: G11B20/10 ,  G11B5/00813 ,  G11B5/00821 ,  G11B5/024 ,  G11B5/5508 ,  G11B5/584 ,  G11B15/04 ,  G11B20/1879 ,  G11B27/36 ,  G11B2020/10851 ,  G11B2020/10898 ,  G11B2020/1267

    Abstract: Techniques for reducing the time required for erasing specific data recorded on a tape medium. A specific group of records is erased without preliminarily locating the erasure end position. This is carried out by simultaneously utilizing three heads, that is, two read heads and one write head, to detect the erasure end position during data erasure. Various embodiments are applicable to tape media as well as other storage media. Various embodiments are not only applicable as a file system cooperating as a combination of hardware (H/W) and software (S/W), but also applicable in systems, such as databases, that directly use storage without an intermediary file system.

    Abstract translation: 用于减少擦除记录在磁带介质上的特定数据所需的时间的技术。 在没有初步定位擦除结束位置的情况下，擦除特定的记录组。 这通过同时使用三个头，即两个读取头和一个写入头来执行，以在数据擦除期间检测擦除结束位置。 各种实施例可应用于磁带介质以及其它存储介质。 各种实施例不仅适用于作为硬件（H / W）和软件（S / W）的组合协作的文件系统，而且可应用于直接使用没有中间文件系统的存储的系统，例如数据库。

    OVERWRITE CONTROL FOR DATA IN TAPE RECORDING APPARATUS
    3.
    发明申请
    OVERWRITE CONTROL FOR DATA IN TAPE RECORDING APPARATUS 有权
    磁带记录装置中数据的过度控制

    公开(公告)号：US20130163397A1

    公开(公告)日：2013-06-27

    申请号：US13772231

    申请日：2013-02-20

    Applicant: International Business Machines Corporation

    Inventor： Takashi Katagiri

    IPC: G11B20/00

    CPC classification number: G11B20/18 ,  G11B15/04 ,  G11B20/10 ,  G11B2020/10898 ,  G11B2020/183 ,  G11B2220/90

    Abstract: A tape recording apparatus in communication with a tape medium, and includes a head and a controlling unit to control the head to read and write data to the tape medium, wherein the controlling unit performs operations, comprising: determining an overwrite starting position by skipping data units whose beginning position cannot be determined until a data unit is reached having a beginning position that can be determined; and performing an overwrite operation at the overwrite starting position at the data unit whose beginning position can be determined.

    Abstract translation: 一种与磁带介质通信的磁带记录装置，包括磁头和控制单元，用于控制磁头读取和写入磁带介质的数据，其中控制单元执行操作，包括：通过跳过数据来确定重写起始位置 在达到可以确定起始位置的数据单元之前，不能确定起始位置的单元; 以及在可以确定开始位置的数据单元处的覆盖开始位置处执行重写操作。

    EXTENDED LOGICAL WORM DATA INTEGRITY PROTECTION
    4.
    发明申请
    EXTENDED LOGICAL WORM DATA INTEGRITY PROTECTION 有权
    扩展的逻辑数据完整性保护

    公开(公告)号：US20110107024A1

    公开(公告)日：2011-05-05

    申请号：US12612435

    申请日：2009-11-04

    Applicant: THOMAS W. BISH ,  Jonathan W. Peake ,  Mark A. Reid ,  Joseph M. Swingler

    Inventor： THOMAS W. BISH ,  Jonathan W. Peake ,  Mark A. Reid ,  Joseph M. Swingler

    IPC: G06F12/00

    CPC classification number: G11B5/00813 ,  G06F2221/2129 ,  G11B15/04 ,  G11B27/3027 ,  G11B2220/218 ,  G11B2220/2516 ,  G11B2220/415 ,  G11B2220/417 ,  G11B2220/90 ,  H04L63/12

    Abstract: A data storage system stores logical data object(s), each identified by a logical identifier. A control is configured to assign a unique WORM (Write Once Read Many) identifier to the logical data object, and stores the unique WORM identifier as associated with the logical identifier, in a database maintained by the control so as to be persistent. Data storage is configured to write the logical data object with a header with the unique WORM identifier. The control, in order to allow the logical data object to be accessed externally to the control, requires matching the unique WORM identifier in the header of a logical data object to the unique WORM identifier of the persistent database for the logical object. The unique WORM identifier is formed of a checksum hash value related to nonce fields comprising at least the logical identifier of the logical data object, an incrementing token, and a time stamp.

    Abstract translation: 数据存储系统存储逻辑数据对象，每个逻辑数据对象由逻辑标识符标识。 控制被配置为向逻辑数据对象分配唯一的WORM（一次读取多个）标识符，并且将与逻辑标识符相关联的唯一WORM标识符存储在由控制器维护的数据库中以便被持久化。 数据存储被配置为使用具有唯一WORM标识符的报头来写入逻辑数据对象。 为了允许将逻辑数据对象从控制外部访问，控制需要将逻辑数据对象的头部中的唯一WORM标识符与逻辑对象的持久性数据库的唯一WORM标识匹配。 独特的WORM标识符由与至少包括逻辑数据对象的逻辑标识符，递增令牌和时间戳的至少包括的nonce字段相关的校验和散列值形成。

    Information recorder and its control method
    5.
    发明授权
    Information recorder and its control method 有权
    信息记录仪及其控制方法

    公开(公告)号：US07191365B2

    公开(公告)日：2007-03-13

    申请号：US10440261

    申请日：2003-05-19

    Applicant: Yoshiyuki Ishii ,  Yoshiaki Mori

    Inventor： Yoshiyuki Ishii ,  Yoshiaki Mori

    IPC: G06F11/00

    CPC classification number: G11B15/026 ,  G11B15/04

    Abstract: There is provided a high-availability duplexing or multiplexing information recorder where a process is not interrupted by a trouble of a drive or a medium. The information recorder is directed to write data instructed to be written from a host system in recording media of at least two drives. The recorder is configured to: detect an abnormality of each drive itself and an abnormality of the recording medium of each drive; cancel the writing of the data in the recording medium of the drive where an abnormality is detected or the drive having the recording medium where an abnormality is detected; and continue the writing of the data in the recording medium of the following drive without notifying any abnormality to the host system, as long as there is at least one drive where any abnormality is not detected and which has the recording medium where any abnormality is not detected.

    Abstract translation: 提供了一种高可用性双工或复用信息记录器，其中处理不被驱动器或介质的故障中断。 该信息记录器被指示写入至少两个驱动器的记录媒体中指示从主机系统写入的数据。 记录器被配置为：检测每个驱动器本身的异常和每个驱动器的记录介质的异常; 取消在检测到异常的驱动器的记录介质中的数据的写入或具有检测到异常的记录介质的驱动器; 并且在没有向主机系统发出任何异常的情况下继续写入以下驱动器的记录介质中的数据，只要存在至少一个驱动器，其中没有检测到任何异常，并且具有任何异常不是的记录介质 检测到。

    Storing data to magnetic tape both to one set of tracks and in the same operation rewritten to another set of tracks
    7.
    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

    Applicant: Glen Alan Jaquette

    Inventor： Glen Alan Jaquette

    IPC: G11B5/09

    CPC classification number: G11B15/005 ,  G11B5/00813 ,  G11B5/4893 ,  G11B5/584 ,  G11B5/86 ,  G11B15/04 ,  G11B15/125 ,  G11B20/10 ,  G11B2020/1062 ,  G11B2020/10962

    Abstract: 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.

    Abstract translation: 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。

    Tape drive apparatus, recording and/or reproducing method, and recording medium
    8.
    发明授权
    Tape drive apparatus, recording and/or reproducing method, and recording medium 有权
    磁带驱动装置，记录和/或再现方法以及记录介质

    公开(公告)号：US07100010B2

    公开(公告)日：2006-08-29

    申请号：US10748288

    申请日：2003-12-31

    Applicant: Tatsuya Kato ,  Masaki Yoshida ,  Katsumi Ikeda ,  Yoshihisa Takayama

    Inventor： Tatsuya Kato ,  Masaki Yoshida ,  Katsumi Ikeda ,  Yoshihisa Takayama

    IPC: G06F12/14

    CPC classification number: G11B15/06 ,  G11B15/04 ,  G11B20/00086 ,  G11B23/042 ,  G11B23/08714 ,  G11B23/283 ,  G11B27/107 ,  G11B27/11 ,  G11B27/328 ,  G11B2220/655 ,  G11B2220/90

    Abstract: A tape cassette of this invention is equipped with a memory capable of accommodating management information. Where the tape cassette is used, a MIC mode switch is written to a predetermined area on the magnetic tape held in the cassette. That item of information specifies whether or not the use of the management information held in the memory is mandatory upon write or read operations to or from the magnetic tape. A check is made on the consistency between the MIC mode switch read from the magnetic tape on the one hand and a result of access to the memory on the other hand. If an inconsistency is detected, that is interpreted as something fraudulent having been committed on the tape cassette. In such a case, read and write operations on the illegitimate cassette are restricted. This improves security of a tape drive system running the tape cassette.

    Abstract translation: 本发明的磁带盒配备有能够容纳管理信息的存储器。 在使用盒式磁带的情况下，将MIC模式开关写入保持在盒式磁带中的磁带上的预定区域。 该信息项指定在从磁带写入或读取操作时是否强制使用保存在存储器中的管理信息。 一方面检查从磁带读取的MIC模式开关与另一方面访问存储器的结果之间的一致性。 如果检测到不一致，那就被解释为已经在磁带盒上犯有欺诈行为。 在这种情况下，对非法盒式磁带的读写操作受到限制。 这提高了运行磁带盒的磁带机系统的安全性。

Patent Agency Ranking