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    • 71. 发明授权
    • Disk apparatus with guide mechanism
    • 带导向机构的磁盘设备
    • US07308691B2
    • 2007-12-11
    • US10854644
    • 2004-05-27
    • Tetsuya Tamura
    • Tetsuya Tamura
    • G11B17/03
    • G11B17/056
    • An opposed interval between a pair of fore position regulating pieces forming a guide mechanism of the disk tray is made wider than the mutual interval between guide ways. The projecting width of the fore position regulating pieces is longer, its opposed interval being closer to the mutual interval between the guide ways. A front end portion of guide way is formed as an run-off guide way, the run-off guide way and the guide way being continuous on a nominal guide way. The open angle of the nominal guide way is decided in a range from 110° to 135°.
    • 形成盘托架的引导机构的一对前位置调节片之间的相对间隔被制成比引导路之间相互间隔更宽。 前置位置调节片的突出宽度较长,其相对间隔更接近于导向路之间的相互间隔。 引导方式的前端部形成为径向引导方式,径向引导方式和引导方式在标称引导方式上连续。 标称引导方式的开启角在110°〜135°的范围内决定。
    • 72. 发明申请
    • Recording apparatus
    • 记录装置
    • US20060250721A1
    • 2006-11-09
    • US11401711
    • 2006-04-11
    • Kazuya SuzukiHajime NishimuraTetsuya TamuraTakeshi Sasa
    • Kazuya SuzukiHajime NishimuraTetsuya TamuraTakeshi Sasa
    • G11B5/09
    • G11B20/1258G11B20/10G11B27/329G11B2020/1221G11B2020/1267G11B2220/2516
    • There is provided a recording apparatus which includes a recording medium having a data area with an address assigned to each cluster of a predetermined size; an interface for connection to a host apparatus; writing means for writing data in the data area; access order deciding means for dividing the data area of the recording medium into a plurality of areas each having an optional data capacity, and deciding an order of accessing the divided areas from the writing means; timing deciding means for deciding a timing when file information on written data is to be updated; control means for controlling the writing means to access a plurality of divided areas in accordance with the decided access order, search an empty cluster in the accessed area, and write data in the searched empty cluster and file information updating means for updating the file information on already written data.
    • 提供了一种记录装置,其包括具有分配给预定大小的每个簇的地址的数据区的记录介质; 用于连接到主机设备的接口; 用于在数据区中写入数据的写入装置; 存取顺序决定装置,用于将记录介质的数据区划分为多个具有可选数据容量的区,并且从写装置确定访问划分区的顺序; 定时决定装置,用于决定要更新关于写入数据的文件信息时的定时; 控制装置,用于根据所确定的访问顺序控制写入装置访问多个分割区域,搜索所访问区域中的空集群,以及在所搜索的空集群中写入数据,以及文件信息更新装置,用于更新关于 已经写了数据。
    • 76. 发明授权
    • Multiple level (ML), integrated sector format (ISF), error correction code (ECC) encoding and decoding processes for data storage or communication devices and systems
    • 用于数据存储或通信设备和系统的多级(ML),集成扇区格式(ISF),纠错码(ECC)编码和解码过程
    • US06903887B2
    • 2005-06-07
    • US10040115
    • 2002-01-03
    • Hideo AsanoMartin Aureliano HassnerNyles Norbert HeiseTetsuya Tamura
    • Hideo AsanoMartin Aureliano HassnerNyles Norbert HeiseTetsuya Tamura
    • G11B5/012G11B5/09G11B20/18G11B27/36
    • G11B20/1866G11B5/012G11B5/09
    • A method and an apparatus encodes and decodes blocks having a predetermined number of sectors of data bytes to detect and correct data bytes in error in each sector of a block. The method and the apparatus generates sector level check bytes for each sector in the block responsive to the data bytes in each sector according to a first level of an error correction code, and generates block level check bytes for a predetermined sector in the block responsive to the sector level check bytes of various sectors, including the predetermined sector, according to at least a second level of the error correction code. The method and apparatus processes the block to detect and correct data bytes in error in each sector within the capability of the sector level check bytes, to detect and correct data bytes in error in the at least two sectors that exceed the correction capability of the sector level check bytes but within the correction capability of the block level check bytes, or to indicate that the data bytes in error in the at least two sectors exceed the correction capability of each of the sector level check bytes and the block level check bytes. The method and apparatus improves signal quality for long streams of information having multiple sequential physical blocks of data bytes, such as audio visual information, with a low check byte overhead while being compatible with conventional 512 data byte sized sectors and conventional single sector error correction code processes.
    • 一种方法和装置对具有预定数量的数据字节扇区的块进行编码和解码以检测和校正块的每个扇区中的错误数据字节。 该方法和装置响应于每个扇区中的数据字节根据纠错码的第一级产生块中的每个扇区的扇区级检查字节,并响应于该块中的预定扇区生成块级校验字节 根据纠错码的至少第二级别,包括预定扇区的各个扇区的扇区级检查字节。 所述方法和装置处理该块以在扇区级检查字节的能力内检测和校正每个扇区中的错误数据字节,以检测并校正超过扇区校正能力的至少两个扇区中的错误数据字节 级别检查字节,但在块级检查字节的校正能力内,或指示至少两个扇区中的错误数据字节超过扇区级检查字节和块级校验字节中的每一级的校正能力。 该方法和装置改善具有数据字节的多个连续物理块的长信息流的信号质量,例如视听信息,具有低检查字节开销,同时与传统的512个数据字节大小的扇区兼容,并且传统的单扇区纠错码 过程。