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    WRITING DATA TO TAPE STORAGE MEDIUM
    2.
    发明申请
    WRITING DATA TO TAPE STORAGE MEDIUM 审中-公开
    将数据写入带状存储介质

    公开(公告)号：WO2012156840A1

    公开(公告)日：2012-11-22

    申请号：PCT/IB2012/052045

    申请日：2012-04-24

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM (CHINA) INVESTMENT COMPANY LTD. ,  CIDECIYAN, Roy, Daron ,  FURRER, Simeon

    Inventor： CIDECIYAN, Roy, Daron ,  FURRER, Simeon

    IPC: G11C7/00

    CPC classification number: G11B5/00813

    Abstract: A method for writing data to a tape storage medium includes: writing first user data to a first physical region (11) of the tape storage medium (1) in a first write mode, writing second user data to a second physical region (12) of the tape storage medium (1) in a second write mode, wherein the second write mode differs from the first write mode. An apparatus for writing data to a tape storage medium, a tape storage medium, a tape cartridge are also provided.

    Abstract translation: 将数据写入磁带存储介质的方法包括：以第一写入模式将第一用户数据写入磁带存储介质（1）的第一物理区域（11），将第二用户数据写入第二物理区域（12） 在第二写入模式下，磁带存储介质（1）的第二写入模式与第一写入模式不同。 还提供了一种用于将数据写入磁带存储介质，磁带存储介质，磁带盒的设备。

    REWRITE-EFFICIENT ECC/INTERLEAVING FOR MULTI-TRACK RECORDING ON MAGNETIC TAPE
    3.
    发明申请
    REWRITE-EFFICIENT ECC/INTERLEAVING FOR MULTI-TRACK RECORDING ON MAGNETIC TAPE 审中-公开
    有效的ECC /用于磁带上的多轨跟踪记录

    公开(公告)号：WO2010088977A1

    公开(公告)日：2010-08-12

    申请号：PCT/EP2009/065849

    申请日：2009-11-25

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  MITTELHOLZER, Thomas ,  CIDECIYAN, Roy, Daron ,  ELEFTHERIOU, Evangelos ,  TANAKA, Keisuke ,  MATSUO, Hisato ,  SEGER, Paul

    Inventor： MITTELHOLZER, Thomas ,  CIDECIYAN, Roy, Daron ,  ELEFTHERIOU, Evangelos ,  TANAKA, Keisuke ,  MATSUO, Hisato ,  SEGER, Paul

    IPC: G11B20/12 ,  G11B20/18 ,  H03M13/27

    CPC classification number: G11B20/1833 ,  G11B20/1201 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2020/1289 ,  G11B2020/1446 ,  G11B2020/1836 ,  G11B2220/93 ,  H03M13/27 ,  H03M13/271

    Abstract: For writing data to multi-track tape, a received data set is received and segmented into unencoded subdata sets, each comprising an array having K 2 rows and K 1 columns. For each unencoded subdata set, N 1 -K 1 C1-parity bytes are generated for each row and N 2 -K 2 C2-parity bytes are generated for each column. The C1 and C2 parity bytes are appended to the ends of the row and column, respectively, to form encoded C1 and C2 codewords, respectively. All of the C1 codewords per data set are endowed with a specific codeword header to form a plurality of partial codeword objects (PCOs). Each PCO is mapped onto a logical data track according to information within the header. On each logical data track, adjacent PCOs arc merged to form COs which are modulation encoded and mapped into synchronized COs. Then T synchronized COs are written simultaneously to the data tape where T is the number of concurrent active tracks on the data tape.

    Abstract translation: 为了将数据写入多轨磁带，接收到的数据集并被分割成未编码的子数据集，每个子​​集包括具有K2行和K1列的阵列。 对于每个未编码的子数据集，为每行生成N1-K1 C1-奇偶校验字节，并为每列生成N2-K2 C2-奇偶校验字节。 C1和C2奇偶校验字节分别附加到行和列的末端，分别形成编码的C1和C2码字。 每个数据集的所有C1码字都具有特定的码字头以形成多个部分码字对象（PCO）。 每个PCO根据标题内的信息被映射到逻辑数据轨道上。 在每个逻辑数据轨道上，相邻的PCO被合并以形成被调制编码并被映射到同步的CO中的CO。 然后将T同步的CO同时写入数据磁带，其中T是数据磁带上的并发活动磁道的数量。

    REWRITING CODEWORD OBJECTS TO MAGNETIC DATA TAPE UPON DETECTION OF AN ERROR
    5.
    发明申请
    REWRITING CODEWORD OBJECTS TO MAGNETIC DATA TAPE UPON DETECTION OF AN ERROR 审中-公开
    在检测到错误的情况下，将编码对象写入磁性数据带

    公开(公告)号：WO2010078992A1

    公开(公告)日：2010-07-15

    申请号：PCT/EP2009/065331

    申请日：2009-11-17

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  SEGER, Paul ,  CIDECIYAN, Roy, Daron ,  MITTELHOLZER, Thomas ,  TANAKA, Keisuke

    Inventor： SEGER, Paul ,  CIDECIYAN, Roy, Daron ,  MITTELHOLZER, Thomas ,  TANAKA, Keisuke

    IPC: G11B20/18

    CPC classification number: G11B20/1883 ,  G11B20/1833 ,  G11B20/1879 ,  G11B2020/183 ,  G11B2020/1836 ,  G11B2220/90

    Abstract: During a read-after-write operation on magnetic tape, a first SCO is formed which includes two encoded processed user data units and is one of T SCOs in a first SCO set. The user data units are each one of T user data units in first and second user data unit sets, respectively, within the first SCO set. The first SCO set is written to the magnetic tape and is immediately read. When an error is detected in one of the user data units, a second SCO is formed to include the first user data unit and, only if an error is not detected in a user data unit in the other user data unit set, to not include the other user data unit, the second SCO being one of T SCOs in a second SCO set. Then, the second SCO set is rewritten to a later position on the tape later.

    Abstract translation: 在磁带读写操作期间，形成第一SCO，其包括两个经编码的处理的用户数据单元，并且是第一SCO组中的T SCO之一。 用户数据单元分别在第一SCO集合内的第一和第二用户数据单元组中的T个用户数据单元中的每一个。 第一个SCO组写入磁带并立即读取。 当在用户数据单元之一中检测到错误时，形成第二SCO以包括第一用户数据单元，并且仅当在另一个用户数据单元组中的用户数据单元中没有检测到错误时，不包括 另一用户数据单元，第二SCO是第二SCO组中的T SCO之一。 然后，第二个SCO组被重新写入磁带的稍后位置。

    ERROR CORRECTION CAPABILITY FOR LONGITUDINAL POSITION DATA IN A TAPE STORAGE SYSTEM
    6.
    发明申请
    ERROR CORRECTION CAPABILITY FOR LONGITUDINAL POSITION DATA IN A TAPE STORAGE SYSTEM 审中-公开
    磁带存储系统中的纵向位置数据的错误校正能力

    公开(公告)号：WO2009103675A1

    公开(公告)日：2009-08-27

    申请号：PCT/EP2009/051770

    申请日：2009-02-16

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  CIDECIYAN, Roy, Daron ,  ELEFTHERIOU, Evangelos ,  SEGER, Paul

    Inventor： CIDECIYAN, Roy, Daron ,  ELEFTHERIOU, Evangelos ,  SEGER, Paul

    IPC: G11B20/12 ,  G11B20/18 ,  G11B5/584 ,  G11B15/46 ,  H03M13/11 ,  G11B20/14

    CPC classification number: G11B20/1201 ,  G11B5/584 ,  G11B20/14 ,  G11B20/1833 ,  G11B2020/1281 ,  G11B2020/1284 ,  G11B2020/1287 ,  G11B2020/1484 ,  G11B2220/90 ,  G11B2220/93 ,  G11B2220/95

    Abstract: A longitudinal position (LPOS) word L(n) is encoded with error correction capability. The LPOS word includes a plurality of LPOS symbols L0(n) through Lk(n) calculated as (Formula I) and representing a longitudinal position of a magnetic tape relative to a tape head in a tape storage system. A word type is determined in response to at least one of the plurality of LPOS symbols and, in response to the determined word type, at least one formatted symbol F(n) is generated from the plurality of LPOS symbols L(n). At least one parity symbol P(n) is generated from the formatted symbol F(n). The formatted and parity symbols are communicated to a servo channel of the tape storage system to be recorded onto a servo track of the magnetic tape. Adding redundancy to LPOS words provides the capability of correcting multiple bit errors without increasing the LPOS word length.

    Abstract translation: 纵向位置（LPOS）字L（n）被编码具有纠错能力。 LPOS字包括由（式I）计算的多个LPOS符号L0（n）至Lk（n），并表示磁带相对于磁带存储系统中磁头的纵向位置。 响应于多个LPOS符号中的至少一个确定字类型，并且响应于所确定的字类型，从多个LPOS符号L（n）生成至少一个格式化符号F（n）。 从格式化符号F（n）生成至少一个奇偶校验符号P（n）。 格式化和奇偶校验符号被传送到磁带存储系统的伺服通道以被记录在磁带的伺服轨道上。 为LPOS字添加冗余提供了在不增加LPOS字长的情况下校正多位错误的能力。

    ERROR CORRECTION CODING OF LONGITUDINAL POSITION INFORMATION
    8.
    发明申请
    ERROR CORRECTION CODING OF LONGITUDINAL POSITION INFORMATION 审中-公开
    长期位置信息的错误校正编码

    公开(公告)号：WO2009115386A1

    公开(公告)日：2009-09-24

    申请号：PCT/EP2009/051894

    申请日：2009-02-18

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  ELEFTHERIOU, Evangelos ,  HUTCHINS, Robert, Allen ,  CIDECIYAN, Roy, Daron ,  CHERUBINI, Giovanni

    Inventor： ELEFTHERIOU, Evangelos ,  HUTCHINS, Robert, Allen ,  CIDECIYAN, Roy, Daron ,  CHERUBINI, Giovanni

    IPC: G11B20/12 ,  G11B20/18 ,  G11B5/584 ,  G11B15/46 ,  H03M13/09

    CPC classification number: G11B20/1201 ,  G11B5/584 ,  G11B20/14 ,  G11B20/1833 ,  G11B20/1866 ,  G11B2020/1281 ,  G11B2020/1284 ,  G11B2020/1287 ,  G11B2020/1484 ,  G11B2020/1836 ,  G11B2220/90 ,  G11B2220/93 ,  G11B2220/95

    Abstract: A sequential data storage medium, comprising a sequence of plurality of servo patterns that provide lateral position information and longitudinal position information, wherein each of the plurality of servo patterns comprises a first burst comprising a first plurality of pulses, a second burst comprising a second plurality of pulses, a third burst comprising a third plurality of pulses, and a fourth burst comprising a fourth plurality of pulses. The spacings between the first plurality of pulses, in combination with the spacings between the second plurality of pulses, encode a first bit without affecting the recovery of lateral position information. The spacings between the third plurality of pulses, in combination with the spacings between the fourth plurality of pulses, encode a second bit without affecting the recovery of lateral position information. The sequence of plurality of servo patterns comprises a sequence of the first bits and a sequence of the second bits to form an error-correction codeword providing error-correction capability.

    Abstract translation: 一种顺序数据存储介质，包括提供横向位置信息和纵向位置信息的多个伺服模式的序列，其中所述多个伺服模式中的每一个包括包括第一多个脉冲的第一脉冲串，包括第二多个脉冲的第二脉冲串 的脉冲，包括第三多个脉冲的第三脉冲串，以及包括第四多个脉冲的第四脉冲串。 所述第一多个脉冲之间的间隔与所述第二多个脉冲之间的间隔相结合，对第一位进行编码，而不影响横向位置信息的恢复。 第三多个脉冲之间的间隔与第四多个脉冲之间的间隔结合，对第二位进行编码，而不影响横向位置信息的恢复。 多个伺服模式的序列包括第一比特的序列和第二比特的序列，以形成提供纠错能力的纠错码字。

    PACKET DATA TRANSMISSION IN CODE-DIVISION MULTIPLE ACCESS COMMUNICATION SYSTEMS
    10.
    发明申请
    PACKET DATA TRANSMISSION IN CODE-DIVISION MULTIPLE ACCESS COMMUNICATION SYSTEMS 审中-公开
    分组数据传输多路访问通信系统

    公开(公告)号：WO1997000568A1

    公开(公告)日：1997-01-03

    申请号：PCT/IB1995000482

    申请日：1995-06-14

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  CHEVILLAT, Pierre, René ,  CIDECIYAN, Roy, Daron ,  RUPF, Marcel ,  SCHOTT, Wolfgang, Hans

    Inventor： INTERNATIONAL BUSINESS MACHINES CORPORATION

    IPC: H04L12/28

    CPC classification number: H04L1/0065 ,  H04J13/00 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/1867 ,  H04W8/26 ,  H04W28/065 ,  H04W48/08 ,  H04W52/367 ,  H04W52/50 ,  H04W60/00 ,  H04W74/004 ,  H04W74/0825 ,  H04W74/0833

    Abstract: The present system is split into a physical layer (20), a data link layer, and a network layer (24). The data link layer is further split into three parts, namely, data link control (23), and two medium access control parts (DLC) (21 and 22). The DLC layer (23) is concerned with link establishment, release and maintenance. The lower MAC part (21) may exist in multiple instances, whereas the upper MAC part (22) is unique. Physically, the two MAC parts (21 and 22) are separated on the network side because the upper MAC part resides in a RNC while the lower part exists in each base station. The connectionless packet service (CLPS) entity (25.1) provides the packet radio service to the mobile user and the CLPS entity (25.2) on the netowrk side provides all facilities required for registration and authentication of mobile users, assigning and administrating their VCIs, and interfacing to a packet data network. The CLPS entities (25.1 and 25.2) use the logical link administrators (LLA) (26.x) to initially route messages via a regular dedicated control channel (DCCH) (27.x) to their peer entities. After the MS is attached to the PRCH, all messages exchanged between the CLPS entities (25.x) as well as user data packets are always directed via the respective PRCH (28.x). In this case, the control packets and user data packets are passed through the DLC (29.x) to the packet radio (PR) control entity (30.x). The packets are fragmented and protected with an error control code, e.g. a block code (BC), by a respective unit (31.x) for detecting transmission errors on the receiving side. Then they are convolutionally encoded, interleaved (IL) by the entity (32.x), and transmitted over the PDCH (33). On the receiving side the fragments are reconstructed from the received samples, reassembled to packets, and forwarded to the target CLPS entity (25.2). When the decoder (31.2) detects the receipt of an erroneous packet fragment, an automatic request for repetition (ARQ) scheme provided in the PR control requests its retransmission.

    Abstract translation: 本系统被分为物理层（20），数据链路层和网络层（24）。 数据链路层进一步分为三个部分，即数据链路控制（23）和两个媒体访问控制部分（DLC）（21和22）。 DLC层（23）涉及链路建立，释放和维护。 下MAC部分（21）可以存在多个实例，而上MAC部分（22）是唯一的。 在物理上，两个MAC部分（21和22）在网络侧分离，因为上MAC部分驻留在RNC中，而下部存在于每个基站中。 无连接分组服务（CLPS）实体（25.1）向移动用户提供分组无线电业务，并且内线侧的CLPS实体（25.2）提供移动用户注册和认证所需的所有设备，分配和管理其VCI，以及 连接到分组数据网络。 CLPS实体（25.1和25.2）使用逻辑链路管理员（LLA）（26.x）通过常规专用控制信道（DCCH）（27.x）将消息路由到其对等实体。 在MS附加到PRCH之后，在CLPS实体（25.x）以及用户数据分组之间交换的所有消息总是经由相应的PRCH（28.x）引导。 在这种情况下，控制分组和用户数据分组通过DLC（29.x）传递到分组无线电（PR）控制实体（30.x）。 分组被分段并用错误控制代码保护，例如， 通过用于检测接收侧的传输错误的相应单元（31.x）来生成块代码（BC）。 然后它们由实体（32.x）进行卷积编码，交织（IL），并通过PDCH（33）发送。 在接收端，从接收到的样本中重建片段，重新组合成分组，并转发到目标CLPS实体（25.2）。 当解码器（31.2）检测到错误分组片段的接收时，在PR控制中提供的自动重复请求（ARQ）方案请求其重传。

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