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57 条记录 (耗时 0.021 秒)

    Read channel for magnetic recording
    1.
    发明授权
    Read channel for magnetic recording 失效
    读取磁记录通道

    公开(公告)号：US4774601A

    公开(公告)日：1988-09-27

    申请号：US940494

    申请日：1986-12-10

    申请人： Yasuhide Ouchi ,  Hajime Aoi ,  Takashi Tamura ,  Nobumasa Nishiyama

    发明人： Yasuhide Ouchi ,  Hajime Aoi ,  Takashi Tamura ,  Nobumasa Nishiyama

    IPC分类号： G11B5/09 ,  G11B20/10

    CPC分类号： G11B20/10009 ,  G11B20/10

    摘要： In a read channel for magnetic recording used to reproduce information recorded on a magnetic recording medium, a signal reproduced from a magnetic head and a differentiated signal of the reproduction signal are ORed together to produce a gate signal. By using the gate signal, the information can be reproduced correctly.

    摘要翻译： 在用于再现记录在磁记录介质上的信息的用于磁记录的读取通道中，从磁头再现的信号和再现信号的微分信号被或者并联在一起以产生一个门信号。 通过使用门信号，可以正确地再现信息。

    Equalizer used for magnetic storage device
    3.
    发明授权
    Equalizer used for magnetic storage device 失效
    用于磁存储设备的均衡器

    公开(公告)号：US4644424A

    公开(公告)日：1987-02-17

    申请号：US685118

    申请日：1984-12-21

    申请人： Nobumasa Nishiyama ,  Hajime Aoi ,  Takashi Tamura ,  Yasuhide Ouchi ,  Makoto Saitou

    发明人： Nobumasa Nishiyama ,  Hajime Aoi ,  Takashi Tamura ,  Yasuhide Ouchi ,  Makoto Saitou

    IPC分类号： G11B5/035 ,  G11B5/09 ,  H03H15/00 ,  H03H17/00 ,  H03H21/00 ,  H04B3/04 ,  G11B5/02 ,  H03H11/06 ,  H04B3/14

    CPC分类号： G11B5/035 ,  G11B5/09

    摘要： An equalizer equalizes a reproduced waveform reproduced by a thin film magnetic head by reproducing information recorded magnetically on a medium. In the equalizer, the reproduced waveform is delayed to a position of an undershot portion, and is attenuated to an amplitude corresponding to a magnitude of the undershot portion, and the resultant waveform is superposed on the reproduced waveform, to thereby eliminate the undershot portion. Furthermore, by superposing a waveform obtained by inverting the reproduced waveform and amplifying or attenuating the inverted waveform, on the reproduced waveform at a half power position thereof, the width is narrowed.

    摘要翻译： 均衡器通过再现磁介质上记录的信息来均衡由薄膜磁头再现的再现波形。 在均衡器中，再生波形被延迟到下方的位置，并且被衰减到对应于低音部分的幅度的振幅，并且所得到的波形叠加在再现波形上，从而消除了低音部分。 此外，通过叠加通过反转再现波形而获得的波形并放大或衰减反相波形，在其半功率位置处的再现波形上，宽度变窄。

    Method and apparatus for fast transfer of data in recording and reproducing system
    7.
    发明授权
    Method and apparatus for fast transfer of data in recording and reproducing system 失效
    用于在记录和再现系统中快速传送数据的方法和装置

    公开(公告)号：US5740142A

    公开(公告)日：1998-04-14

    申请号：US691191

    申请日：1996-08-05

    申请人： Nobumasa Nishiyama ,  Hajime Aoi

    发明人： Nobumasa Nishiyama ,  Hajime Aoi

    IPC分类号： G11B20/10 ,  G11B7/00

    CPC分类号： G11B20/10194 ,  G11B20/10

    摘要： A fast data transfer system capable of eliminating the need to extremely increase the necessary transmission frequency band for the high-density recording and fast revolution rate of data recording and reproducing system has a recording and reproduced signal processor including an encoder/decoder, a disk enclosure including a parallel-to-serial converter, a record head, and a serial-to-parallel converter, and a transmission cable, and makes recording parallel data transfer from the encoder/decoder to a recording amplifier by shifting the phases of a plurality of recording signals and reproduced parallel data from the serial-to-parallel converter to the encoder/decoder by shifting the phases of a plurality of reproduced signals. The necessary transmission frequency on the transmission cable can be reduced by this parallel data transfer on the transmission cable. In addition, a record timing correction circuit can be provided on a parallel data transfer path.

    摘要翻译： 一种快速数据传输系统，其能够消除对数据记录和再现系统的高密度记录和快速转速极大增加所需传输频带的需要，具有包括编码器/解码器，磁盘盒 包括并行到串行转换器，记录头和串行到并行转换器以及传输电缆，并且通过移动多个存储器的相位使得从编码器/解码器到记录放大器的记录并行数据传送 通过移位多个再现信号的相位将串行到并行转换器的并行数据记录到编码器/解码器。 传输电缆上的这种并行数据传输可以减少传输电缆所需的传输频率。 此外，可以在并行数据传送路径上提供记录定时校正电路。

    Digital magnetic writing and reading apparatus
    9.
    发明授权
    Digital magnetic writing and reading apparatus 失效
    数字磁读写装置

    公开(公告)号：US5337198A

    公开(公告)日：1994-08-09

    申请号：US909997

    申请日：1992-07-07

    申请人： Nobumasa Nishiyama ,  Toshiaki Tsuyoshi ,  Hajime Aoi ,  Tetsuji Kameoka ,  Masaya Tanaka ,  Kazuhisa Shiraishi

    发明人： Nobumasa Nishiyama ,  Toshiaki Tsuyoshi ,  Hajime Aoi ,  Tetsuji Kameoka ,  Masaya Tanaka ,  Kazuhisa Shiraishi

    IPC分类号： G11B5/09 ,  G11B5/035

    CPC分类号： G11B5/09 ,  G11B20/10046

    摘要： A waveform equalizer for processing a signal read by a magnetic head from a magnetic written medium includes a slimming circuit which, in turn, has a first delay unit for delaying the read signal, a first attenuator connected in parallel with the first delay unit, a first differentiating circuit for receiving the output from the first delay unit and the output from the first attenuator, and a resistor connected to a first delay unit side input of the first differential circuit; and a pseudo-peak elimination circuit connected in series with the slimming circuit and including a circuit for separating the from the read signal the read signal or a signal reverse in phase to the read signal, a second delay unit for delaying the separated signal, a second attenuator for attenuating the amplitude of the separated signal, and a second differential circuit for receiving the read signal and the separated, delayed and attenuated signal.

    摘要翻译： 用于处理由磁性写入介质由磁头读取的信号的波形均衡器包括减弱电路，该减幅电路又具有用于延迟读取信号的第一延迟单元，与第一延迟单元并联连接的第一衰减器， 用于接收来自第一延迟单元的输出和来自第一衰减器的输出的第一微分电路，以及连接到第一差分电路的第一延迟单元侧输入的电阻器; 以及与所述减肥电路串联连接的伪峰值消除电路，并且包括用于将读取信号或相反相反的信号与读取信号分离的读取信号的电路，用于延迟分离的信号的第二延迟单元， 第二衰减器，用于衰减分离信号的振幅;以及第二差分电路，用于接收读取信号和分离的，延迟和衰减的信号。