Rotational storage device
    1.
    发明授权
    Rotational storage device 失效
    旋转储存装置

    公开(公告)号:US06201655B1

    公开(公告)日:2001-03-13

    申请号:US09154841

    申请日:1998-09-17

    IPC分类号: G11B509

    摘要: A magnetic disk drive has magnetic disks having tracks and a number of sectors forming each track. The tracks have an ID few track format and the drive is divided into a plurality of notches. The drive also includes a memory and a defect sector list, sector replacement list, defect track list and replacement track list, each of which is stored in the memory. Defective sectors and tracks in each notch are slipped during formatting, and further defective sectors and tracks detected subsequent to the formatting are skipped. Spare sectors in the notch are provided in a spare region to accommodate the slipped and skipped sectors and tracks, respectively. The defective sector list is supervised as a two stage table to reduce the required memory size for maintaining the list and to decrease the time required for searching the list.

    摘要翻译: 磁盘驱动器具有磁道,磁盘具有轨道和形成每个轨道的多个扇区。 轨道具有ID少的轨道格式,并且驱动器被分成多个凹口。 驱动器还包括存储器和缺陷扇区列表,扇区替换列表,缺陷轨道列表和替换轨道列表,每个存储在存储器中。 在格式化期间,每个凹口中的缺陷扇区和轨迹滑动,并且跳过在格式化之后检测到的另外的缺陷扇区和轨迹。 凹口中的备用扇区分别设置在备用区域以适应滑动和跳过的扇区和轨道。 将缺陷扇区列表作为两级表进行监控,以减少维护列表所需的内存大小,并减少搜索列表所需的时间。

    Data transferring system between host and I/O using a main buffer with
sub-buffers where quantity of data in sub-buffers determine access
requests
    2.
    发明授权
    Data transferring system between host and I/O using a main buffer with sub-buffers where quantity of data in sub-buffers determine access requests 失效
    主机和I / O之间的数据传输系统使用具有子缓冲区的主缓冲区,子缓冲区中的数据量决定访问请求

    公开(公告)号:US5507005A

    公开(公告)日:1996-04-09

    申请号:US852563

    申请日:1992-03-17

    摘要: A data transfer control apparatus for communicating data between a host device and an input/output device through a main buffer memory for temporarily holding the data, wherein a sub-buffer memory is disposed at least either between the main buffer memory and the host device or between the main buffer memory and the input/output device for temporarily storing the data, the amount of data stored in the sub-buffer memory is detected, access requests to the main buffer memory on the side of the host device or the input/output device are outputted in accordance with the detected data amount, and one of the access requests to the main buffer memory is selected in accordance with the priority order to access the main buffer memory on the basis of the selected access request.

    摘要翻译: 一种用于通过用于临时保存数据的主缓冲存储器在主机设备和输入/输出设备之间传送数据的数据传输控制设备,其中副缓冲存储器至少设置在主缓冲存储器和主机设备之间,或者 在主缓冲存储器和用于临时存储数据的输入/输出装置之间,检测存储在子缓冲存储器中的数据量,主机装置侧的主缓冲存储器的访问请求或输入/输出 根据检测到的数据量输出设备,并且根据优先顺序选择对主缓冲存储器的访问请求中的一个,以便根据所选择的访问请求访问主缓冲存储器。

    Read/write controlling apparatus for adjusting the data length of a
magnetic disk
    3.
    发明授权
    Read/write controlling apparatus for adjusting the data length of a magnetic disk 失效
    用于调整磁盘的数据长度的读/写控制装置

    公开(公告)号:US5313340A

    公开(公告)日:1994-05-17

    申请号:US823299

    申请日:1992-01-21

    CPC分类号: G11B19/02 G11B20/10 G11B5/012

    摘要: The present invention relates to a magnetic disk control apparatus capable of utilizing a data region of a track. The data read/write controlling apparatus according to the present invention comprises a unit for serially reading a signal series constructed of a servo signal and data which has been recorded on a recording track; a unit for generating a first read/ write control signal in response to the servo signal of the read signal series; a unit for generating a second read/write control signal between the generation of the servo signal and a generation of a servo signal subsequent to the first-mentioned signal; a unit for writing given data into the data region of the recording track in response to the generation of the read/write control signal; and a unit for externally outputting data read out just after the read/write control signal is generated.

    摘要翻译: 本发明涉及能够利用轨道的数据区域的磁盘控制装置。 根据本发明的数据读/写控制装置包括用于串行读取由伺服信号构成的信号序列和已经记录在记录轨道上的数据的单元; 用于响应于读取信号序列的伺服信号产生第一读/写控制信号的单元; 用于在所述伺服信号的产生和所述第一提到的信号之后产生伺服信号时产生第二读/写控制信号的单元; 响应于所述读/写控制信号的产生将给定数据写入所述记录轨道的数据区的单元; 以及用于外部输出在产生读/写控制信号之后读出的数据的单元。

    Magnetic disc control apparatus with parallel data transfer between disc control unit and encoder circuit
    8.
    发明授权
    Magnetic disc control apparatus with parallel data transfer between disc control unit and encoder circuit 失效
    磁盘控制装置,具有盘控制单元与编码电路之间的并行数据传输

    公开(公告)号:US06311236B1

    公开(公告)日:2001-10-30

    申请号:US09503248

    申请日:2000-02-14

    IPC分类号: G06F1328

    摘要: A data processing method of recording data on a recording medium mounted on an information recording apparatus. The data processing method includes the steps of dividing, in a disk controller, parallel data constituted by p bits transferred from a high-rank device into data each having q bits, where p and q are numbers; transferring the data each having q bits from the disk controller to an encoder as parallel data constituted by q bits; encoding, in the encoder, the data each having q bits to generate recording signals corresponding to data to be recorded; and recording the recording signals on the recording medium, thereby recording the data to be recorded on the recording medium. The data processing method may further include the steps of reproducing, from the recording medium, the recording signals recorded on the recording medium; decoding, in a decoder, the reproduced recorded signals to generate data each having p bits; transferring the data each having p bits from the decoder to the disk controller as parallel data constituted by p bits; and converting, in the disk controller, the data each having p bits into parallel data constituted by m bits to be transferred to the high-rank device, where m is a number.

    摘要翻译: 一种在安装在信息记录装置上的记录介质上记录数据的数据处理方法。 数据处理方法包括以下步骤:在盘控制器中,将由高位装置传送的p位构成的并行数据划分成各自具有q位的数据,其中p和q是数字; 将每个具有q位的数据从盘控制器传送到编码器,作为由q位构成的并行数据; 在编码器中对每个具有q位的数据进行编码以产生对应于要记录的数据的记录信号; 并将记录信号记录在记录介质上,从而记录要记录在记录介质上的数据。 数据处理方法还可以包括以下步骤:从记录介质再现记录在记录介质上的记录信号; 在解码器中解码再现的记录信号,以产生每个具有p位的数据; 将每个具有p位的数据从解码器传送到盘控制器作为由p位构成的并行数据; 并且在磁盘控制器中将每个具有p位的数据转换成由m位组成的并行数据以传送到高位器件,其中m是数字。