会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Data storage method and data storage device
    • 数据存储方法和数据存储设备
    • US07530009B2
    • 2009-05-05
    • US11530195
    • 2006-09-08
    • Katsuhiko KatohTakashi KurodaHiroshi UchiikeYasuhiro Takase
    • Katsuhiko KatohTakashi KurodaHiroshi UchiikeYasuhiro Takase
    • H03M13/00
    • G11B20/1833G11B2220/2516
    • A data storage device comprising a disk storage medium containing user data in a plurality of sectors wherein each of the plurality of sectors comprises a subdivision of a track, a head for writing or reading the user data and error correcting means for correcting an error that occurs in the user data during the reading process. The error correcting means comprises a syndrome generator for generating syndromes on the basis of the user data, a Euclid circuit, a chien search circuit and a verification circuit, and makes the error correction using a first error correcting code appended to each of a plurality of sectors and a second error correcting code appended to said sector for every block composed of a predetermined number of sectors.
    • 一种数据存储装置,包括:磁盘存储介质,其包含多个扇区中的用户数据,其中所述多个扇区中的每一个包括磁道的细分,写入或读取用户数据的磁头以及用于校正发生的错误的纠错装置 在读取过程中的用户数据。 误差校正装置包括用于基于用户数据产生校正子的校正子发生器,欧几里德电路,检索电路和验证电路,并且使用附加到多个 扇区和由预定数量的扇区组成的每个块附加到所述扇区的第二纠错码。
    • 8. 发明授权
    • Servo mark detection device
    • 伺服标记检测装置
    • US6014276A
    • 2000-01-11
    • US995939
    • 1997-12-22
    • Yasuhiro Takase
    • Yasuhiro Takase
    • G11B21/10G11B5/596G11B27/30G11B5/09
    • G11B5/59688G11B27/3027
    • A servo mark detection device includes a synchronizing circuit, first and second shift registers, a frame pattern detection circuit, a control circuit, and a servo mark comparator. The synchronizing circuit detects a peak of the signal amplitude of a data pattern and outputs a synchronization data signal synchronized with a clock. The first shift register sequentially stores the synchronization data signal and outputs a latch data signal. The detection circuit determines the frame pattern of the latch data signal, outputs a determination data signal, determines a phase shift of the latch data signal with respect to the clock, and outputs a phase correction signal. The control circuit outputs a frame pulse signal at a predetermined clock period, outputs a frame pulse signal at a timing corrected with respect to the predetermined clock period on the basis of the phase correction signal, and outputs a check window signal when a predetermined number of frame pulse signals are output. The second shift register sequentially latches the determination data signal in synchronism with the frame pulse signal, and outputs a servo mark data signal. The comparator compares the servo mark signal with a predetermined reference pattern when the check window signal is active, and outputs a servo mark detection signal.
    • 伺服标记检测装置包括同步电路,第一和第二移位寄存器,帧图案检测电路,控制电路和伺服标记比较器。 同步电路检测数据模式的信号幅度的峰值,并输出与时钟同步的同步数据信号。 第一移位寄存器顺序地存储同步数据信号并输出​​锁存数据信号。 检测电路确定锁存数据信号的帧模式,输出确定数据信号,确定锁存数据信号相对于时钟的相移,并输出相位校正信号。 控制电路以预定的时钟周期输出帧脉冲信号,根据相位校正信号在相对于预定时钟周期校正的定时输出帧脉冲信号,并且当预定数量的 输出帧脉冲信号。 第二移位寄存器顺序地与帧脉冲信号锁存确定数据信号,并输出伺服标记数据信号。 当检查窗信号有效时,比较器将伺服标记信号与预定参考图案进行比较,并输出伺服标记检测信号。
    • 9. 发明授权
    • Sector pulse generating apparatus for multiple zone recording of a disk
memory
    • 扇区脉冲发生装置,用于磁盘存储器的多区记录
    • US5539795A
    • 1996-07-23
    • US497893
    • 1995-07-03
    • Yasuhiro Takase
    • Yasuhiro Takase
    • G11B20/12G11B21/08G11B27/10G11B5/596H03K21/10
    • G11B21/085
    • A sector pulse generating apparatus for multiple zone recording includes only first and second counters. The first counter counts reference clock pulses and outputs a present position signal. The second counter is incremented in response to a increment signal and outputs a next sector number signal. A first register stores the sector length of a zone in which a head is located. A multiplier outputs a next sector position signal representative of a multiplication of the next sector number and the sector length. A first comparator compares the magnitude of the present position and the next sector position. When the present position and the next sector position match, a sector pulse generating device generates a sector pulse and a first increment device outputs the increment signal.
    • 用于多区记录的扇区脉冲产生装置仅包括第一和第二计数器。 第一计数器对参考时钟脉冲进行计数并输出当前位置信号。 第二计数器响应于增量信号递增,并输出下一个扇区号信号。 第一个寄存器存储头部所在区域的扇区长度。 乘法器输出表示下一扇区号与扇区长度相乘的下一个扇区位置信号。 第一比较器比较当前位置的大小和下一个扇区位置。 当当前位置和下一扇区位置匹配时,扇区脉冲产生装置产生扇区脉冲,第一增量装置输出增量信号。