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1. 发明授权

US06700721B2 Magnetic recording and reproducing apparatus and semiconductor integrated circuit for use in the same comprising a read/write signal processor having an interleave write data generator 失效
标题翻译：磁记录和再现装置和用于其中的半导体集成电路包括具有交错写入数据发生器的读/写信号处理器
公开(公告)号：US06700721B2
公开(公告)日：2004-03-02
申请号：US10191562
申请日：2002-07-10
申请人： Eisaku Saiki , Shintaro Suzumura , Terumi Takashi , Kazutoshi Ashikawa , Tsuguyoshi Hirooka , Shoichi Miyazawa , Masashi Mori
发明人： Eisaku Saiki , Shintaro Suzumura , Terumi Takashi , Kazutoshi Ashikawa , Tsuguyoshi Hirooka , Shoichi Miyazawa , Masashi Mori
IPC分类号： G11B509
CPC分类号： G11B5/09 , G11B5/012 , G11B5/02 , G11B20/10009 , H03F3/45089 , H03F3/45103 , H03F3/72 , H03F2203/45316
摘要： A magnetic recording and reproducing apparatus includes a R/W signal processor having a write data generator arranged to be of an interleave system and transmitting/receiving data to/from the R/W amplifier via a plurality of signal lines. In addition, the R/W amplifier has a compound circuit provided for the write data of the interleave system from the R/W signal processor and is formed as an integrated circuit, moreover, a ½ prescaler is provided at the output of the write data generator, making transmitting and receiving write data in NRZI CODE.
摘要翻译：磁记录和重放装置包括一个R / W信号处理器，其具有被布置成交错系统的写入数据发生器，并经由多个信号线向/从R / W放大器发送/接收数据。此外，R / W放大器具有为来自R / W信号处理器的交错系统的写入数据提供的复合电路，并且形成为集成电路，此外，在写入数据的输出端提供½预分频器发送器，在NRZI CODE中发送和接收写入数据。

2. 发明授权

US06452736B1 Magnetic recording and reproducing apparatus and a read/write amplifier having a signal transmission system with high speed of data write signal 失效
标题翻译：磁记录和再现装置以及具有高速数据写入信号的信号传输系统的读/写放大器
公开(公告)号：US06452736B1
公开(公告)日：2002-09-17
申请号：US08450245
申请日：1995-05-25
申请人： Eisaku Saiki , Shintaro Suzumura , Terumi Takashi , Kazutoshi Ashikawa , Tsuguyoshi Hirooka , Shoichi Miyazawa , Masashi Mori
发明人： Eisaku Saiki , Shintaro Suzumura , Terumi Takashi , Kazutoshi Ashikawa , Tsuguyoshi Hirooka , Shoichi Miyazawa , Masashi Mori
IPC分类号： G11B509
CPC分类号： G11B5/09 , G11B5/012 , G11B5/02 , G11B20/10009 , H03F3/45089 , H03F3/45103 , H03F3/72 , H03F2203/45316
摘要： A magnetic recording and reproducing apparatus includes a read/write signal processor having a write data generator arranged to be of an interleave system and transmitting/receiving data to/from the read/write amplifier via a plurality of signal lines. In addition, the read/write amplifier has a compound circuit provided for the write data of the interleave system from the read/write signal processor and is formed as an integrated circuit, moreover, a 1/2 prescaler is provided at the output of the write data generator, transmitting and receiving write data in Non-Return-To-Zero-Interleave CODE.
摘要翻译：磁记录和再现装置包括一个读/写信号处理器，该读/写信号处理器具有布置成交错系统的写数据发生器，并经由多个信号线向读/写放大器发送/接收数据。此外，读/写放大器具有为来自读/写信号处理器的交错系统的写入数据提供的复合电路，并且形成为集成电路，此外，在该输出处提供1/2预分频器写数据生成器，在非归零交错CODE中发送和接收写入数据。

3. 发明授权

US5677802A Phase locked loop circuit with adjustable offset characteristic, method for adjustment and apparatus 失效
标题翻译：具有可调偏移特性的锁相环电路，调节方法和装置
公开(公告)号：US5677802A
公开(公告)日：1997-10-14
申请号：US405895
申请日：1995-03-17
申请人： Eisaku Saiki , Masashi Mori , Shintaro Suzumura , Shoichi Miyazawa , Terumi Takashi
发明人： Eisaku Saiki , Masashi Mori , Shintaro Suzumura , Shoichi Miyazawa , Terumi Takashi
IPC分类号： G11B19/02 , G11B20/14 , G11B20/18 , H03L7/06 , H03L7/08 , H03M1/10 , H03M1/12 , H04L7/033 , G11B5/09 , G11B27/36
CPC分类号： G11B20/10055 , G11B19/02 , G11B20/1403 , G11B20/182
摘要： A phase locked loop circuit having a voltage controlled oscillator for generating a clock signal with a frequency determined by a voltage control signal supplied to the voltage controlled oscillator, an AD-conversion circuit for sampling a target signal with a timing determined by the clock signal and for converting sampled values into digital data, a phase locked loop control circuit for generating control data with values representing values of the digital data, and a DA-conversion circuit having an adjustable conversion characteristic for converting the control data into an analog signal and for outputting the analog signal to the voltage controlled oscillator as the voltage control signal. The adjustable conversion characteristic of the DA-conversion circuit is adjusted on the basis of an input signal having predetermined playback characteristics and when the phase locked loop circuit is part of a recording and reproducing apparatus, the input signal is a reproduced signal from a signal recorded on a recording medium.
摘要翻译：一种锁相环电路，具有用于产生由提供给压控振荡器的电压控制信号确定的频率的时钟信号的压控振荡器，用于由时钟信号确定的定时对目标信号进行采样的AD转换电路，以及用于将采样值转换为数字数据的锁相环控制电路，用于产生具有表示数字数据值的值的控制数据的锁相环控制电路，以及具有用于将控制数据转换成模拟信号并具有可变输出的可调转换特性的DA转换电路将压控振荡器的模拟信号作为电压控制信号。基于具有预定播放特性的输入信号调整DA转换电路的可调转换特性，并且当锁相环电路是记录和再现装置的一部分时，输入信号是从记录的信号的再现信号在记录介质上。

4. 发明授权

US5867333A Data recording and reproducing apparatus and phase locked loop circuit for use therein including D/A converters acting as charge pumps and a reference voltage source 失效
标题翻译：用于其中的数据记录和再现装置和锁相环电路，其中包括用作电荷泵的D / A转换器和参考电压源
公开(公告)号：US5867333A
公开(公告)日：1999-02-02
申请号：US513507
申请日：1995-08-10
申请人： Eisaku Saiki , Shintaro Suzumura , Kazutoshi Ashikawa , Tsuguyoshi Hirooka , Seiichi Mita
发明人： Eisaku Saiki , Shintaro Suzumura , Kazutoshi Ashikawa , Tsuguyoshi Hirooka , Seiichi Mita
IPC分类号： G11B20/10 , G11B5/02 , G11B5/09 , G11B20/14 , G11B23/00 , H03L7/089 , H03L7/093 , H03L7/099
CPC分类号： G11B20/10055 , G11B20/1403 , G11B5/02 , G11B5/09 , H03L7/0893 , H03L7/0896 , H03L7/0898 , H03L7/093 , H03L7/099 , G11B20/10009 , G11B23/0007 , H03L2207/06
摘要： A magnetic recording and reproducing apparatus such as a disk drive has a phase locked loop circuit which is less susceptible to an effect of noise of a power supply and ground and reduces a clock jitter. The magnetic recording and reproducing apparatus is compatible to a constant density recording system without increasing a circuit scale and a power consumption and with a small number of IC pins. The phase locked loop circuit of the magnetic recording and reproducing apparatus is provided with two D/A converter circuits to drive a loop filter. It is also provided with a circuit for distributing a reference potential of a voltage controlled oscillator (VCO) and a center frequency of the VCO, a gain of the VCO and a current gain of the D/A converter circuit are changed in linked relation. A reference voltage source is provided such that a center point or one end of the loop filter is connected to the reference voltage eliminating the ground connection.
摘要翻译：诸如盘驱动器之类的磁记录和再现装置具有一个较不容易受到电源和地的噪声影响的锁相环电路，并且减少了时钟抖动。磁记录和再现装置与恒定密度记录系统兼容，而不增加电路规模和功耗以及少量IC引脚。磁记录和再现装置的锁相环电路设置有驱动环路滤波器的两个D / A转换器电路。还设置有用于分配压控振荡器（VCO）的参考电位和VCO的中心频率的电路，VCO的增益和D / A转换器电路的电流增益以链接关系改变。提供参考电压源，使得环路滤波器的中心点或一端连接到消除接地连接的参考电压。

5. 发明授权

US5872666A Decoder circuitry with PRML signal processing for reproducing apparatus 失效
标题翻译：具有用于再现装置的PRML信号处理的解码器电路
公开(公告)号：US5872666A
公开(公告)日：1999-02-16
申请号：US560387
申请日：1995-11-17
申请人： Eisaku Saiki , Kazutosi Ashikawa , Seiichi Mita , Shintaro Suzumura , Shoichi Miyazawa , Tsuguyoshi Hirooka
发明人： Eisaku Saiki , Kazutosi Ashikawa , Seiichi Mita , Shintaro Suzumura , Shoichi Miyazawa , Tsuguyoshi Hirooka
IPC分类号： G11B5/012 , G11B5/09 , G11B20/10 , H03H15/00 , H03H17/00 , H03H21/00 , H03M13/23 , H04B3/04 , H04L25/497
CPC分类号： G11B20/10055 , G11B20/10009 , G11B5/012 , G11B5/09
摘要： Reproducing apparatus with an A/D (analog-to-digital) converter, which realizes high-accuracy data sampling, high-speed data transfer, low dissipation power and low cost. PR (partial response) processing is performed by receiving encoded signals, delaying the received signals on the basis of a reference clock, and adding the delayed signals and the received signals in analog signal form. The added signals are converted into digital values on the basis of the reference clock by the A/D converter, and Viterbi decoding is performed on the basis of the converted digital values. Owing to the PR processing which is performed at a stage preceding the A/D converter, a frequency band for the A/D conversion can be lowered, and hence, the high-accuracy data sampling is permitted.
摘要翻译：具有A / D（模拟 - 数字）转换器的再现装置实现了高精度数据采样，高速数据传输，低功耗和低成本。 PR（部分响应）处理通过接收编码信号，基于参考时钟延迟接收信号，并将延迟信号和接收信号相加在模拟信号形式中来执行。所附加的信号由A / D转换器基于参考时钟转换为数字值，并且基于转换的数字值执行维特比解码。由于在A / D转换器之前的阶段执行的PR处理可以降低A / D转换的频带，因此允许高精度数据采样。

6. 发明授权

US06400523B1 Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores 失效
标题翻译：用于记录和再现具有双头的盘式记录介质的方法和装置，包括具有偏移芯的读取头和写入头
公开(公告)号：US06400523B1
公开(公告)日：2002-06-04
申请号：US09838127
申请日：2001-04-20
申请人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
发明人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
IPC分类号： G11B5596
CPC分类号： G11B5/012 , G11B5/09 , G11B5/4886 , G11B19/04 , G11B20/1217 , G11B20/1833 , G11B27/3027 , G11B2020/1222 , G11B2020/1232 , G11B2020/1265 , G11B2020/1267 , G11B2020/1297 , G11B2220/20 , G11B2220/2516
摘要： A magnetic disk recording and reproducing apparatus comprising a unit for inserting an error correcting code related to control information into said control information on data; a recording control unit for recording in a plurality of sectors formed by dividing the recording area of a magnetic disk, each sector having an ID area for recording said control information and a data area, provided adjacent to and behind said ID area, for recording said data; and a error correcting unit for correcting said control information of said ID area by said error correcting code before data is read from said data area corresponding to said ID area or data is recorded in said data area corresponding to said ID area.
摘要翻译：一种磁盘记录和再现装置，包括用于将与控制信息相关的纠错码插入到关于数据的所述控制信息中的单元; 记录控制单元，用于记录在通过划分磁盘的记录区域形成的多个扇区中，每个扇区具有用于记录所述控制信息的ID区域和与所述ID区域相邻并在其后面设置的用于记录所述控制信息的数据区域的数据区域，数据; 以及纠错单元，用于在从与所述ID区域对应的所述数据区域读取数据之前通过所述纠错码校正所述ID区域的所述控制信息，或者将数据记录在与所述ID区域对应的所述数据区域中。

7. 发明授权

US6108158A Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores 失效
标题翻译：用于记录和再现具有双头的盘式记录介质的方法和装置，包括具有偏移芯的读取头和写入头
公开(公告)号：US6108158A
公开(公告)日：2000-08-22
申请号：US858460
申请日：1997-05-19
申请人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
发明人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
IPC分类号： G11B5/012 , G11B5/09 , G11B5/48 , G11B19/04 , G11B20/12 , G11B20/18 , G11B27/30 , G11B5/596
CPC分类号： G11B5/012 , G11B19/04 , G11B20/1217 , G11B20/1833 , G11B27/3027 , G11B5/09 , G11B2020/1222 , G11B2020/1232 , G11B2020/1265 , G11B2020/1267 , G11B2020/1297 , G11B2220/20 , G11B2220/2516 , G11B5/4886
摘要： A disk type recording and reproducing apparatus includes a disk type recording medium, and a dual head including a reading head and a writing head. A center of the core of the reading head is shifted in the radial direction of the disk type recording medium relative to a center of the core of the writing head. The disk type recording medium has a plurality of recording tracks each having a plurality of sectors. Each of the sectors has an ID division provided ahead of a data division disposed in the circumferential direction of the disk type recording medium. The ID division has recorded therein identification information identifying the sector. A center line of the ID division is shifted in the radial direction of the disk type recording medium relative to a center line of the data division by a distance equal to a distance by which the center of the core of the reading head is shifted in the radial direction of the disk type recording medium relative to the center of the core of the writing head. The data division has identification information identifying the sector stored in a position ahead of data to be recorded and reproduced.
摘要翻译：盘型记录和再现装置包括盘型记录介质和包括读头和写头的双头。阅读头的核心的中心相对于书写头的芯的中心在盘形记录介质的径向方向上移动。盘型记录介质具有多个记录道，每个记录道具有多个扇区。每个扇区具有设置在盘型记录介质的圆周方向上的数据分区之前的ID划分。 ID部门记录了识别扇区的识别信息。 ID划分的中心线相对于数据分割的中心线在盘型记录介质的径向上移动距离等于读取头的磁心的中心位移的距离盘型记录介质相对于书写头的芯的中心的径向方向。数据部分具有识别存储在要记录和再现的数据之前的位置处的扇区的识别信息。

8. 发明授权

US06236528B1 Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores 有权
标题翻译：用于记录和再现具有双头的盘式记录介质的方法和装置，包括具有偏移芯的读取头和写入头
公开(公告)号：US06236528B1
公开(公告)日：2001-05-22
申请号：US09641772
申请日：2000-08-21
申请人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
发明人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
IPC分类号： G11B5596
CPC分类号： G11B5/012 , G11B5/09 , G11B5/4886 , G11B19/04 , G11B20/1217 , G11B20/1833 , G11B27/3027 , G11B2020/1222 , G11B2020/1232 , G11B2020/1265 , G11B2020/1267 , G11B2020/1297 , G11B2220/20 , G11B2220/2516
摘要： A disk type recording and reproducing apparatus includes a disk type recording medium having a plurality of tracks and having stored on each of the plurality of tracks a position signal indicating positions on the tracks; a drive section for rotating the disk type recording medium; a dual head separately incorporating a reading head for reading from the disk type recording medium and a writing head for writing into the disk type recording medium; a head drive section for moving the dual head; means for controlling the head drive section by a controlled variable in compliance with a position signal read from the disk type recording medium using an object track and the reading head; and memory means for storing quantity information used to correct the controlled variable of the means for controlling the head drive section. The means for controlling the head drive section, at least in a writing operation, obtains the controlled variable of the head drive section according to the position signal read from the disk type recording medium using the object track and the reading head and the quantity information stored in the memory means.
摘要翻译：盘型记录和再现装置包括具有多个轨道的盘式记录介质，并且在多个轨道的每一个上存储指示轨道上的位置的位置信号; 用于旋转盘型记录介质的驱动部分; 分别结合用于从盘型记录介质读取的读取头和用于写入盘型记录介质的写入头的双头; 用于移动双头的头驱动部分; 用于通过受控变量控制磁头驱动部分的装置，该控制变量符合使用对象轨道和读取头从盘式记录介质读取的位置信号; 以及存储装置，用于存储用于校正用于控制头驱动部的装置的控制变量的量信息。至少在写入操作中用于控制磁头驱动部分的装置根据从盘式记录介质读取的位置信号获得磁头驱动部分的控制变量，使用对象磁道和读取头以及存储的数量信息在记忆的方式。

9. 发明授权

US5715105A Method of and apparatus for recording on and reproducing from disk-type recording medium having recording tracks with sectors each having an ID area and a data area 失效
标题翻译：具有记录磁道的磁盘式记录介质的记录方法和装置，其中扇区各自具有ID区和数据区
公开(公告)号：US5715105A
公开(公告)日：1998-02-03
申请号：US128072
申请日：1993-09-28
申请人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
发明人： Yukari Katayama , Hitoshi Ogawa , Motoyasu Tsunoda , Tsuneo Hirose , Akira Kojima , Eisaku Saiki , Yasunori Kaneda , Katsuhiro Tsuneta , Shoichi Miyazawa , Terumi Takashi
IPC分类号： G11B5/012 , G11B5/09 , G11B5/48 , G11B19/04 , G11B20/12 , G11B20/18 , G11B27/30
CPC分类号： G11B5/012 , G11B19/04 , G11B20/1217 , G11B20/1833 , G11B27/3027 , G11B5/09 , G11B2020/1222 , G11B2020/1232 , G11B2020/1265 , G11B2020/1267 , G11B2020/1297 , G11B2220/20 , G11B2220/2516 , G11B5/4886
摘要： A magnetic disk recording and reproducing apparatus including a unit for inserting an error correcting code relating to control information in the control information, the control information relating to data, a recording control unit for recording the control information and the data in a recording area of a magnetic disk, the recording area having a plurality of sectors, each of the sectors having an ID area for recording the control information and a data area for recording the data, the data area corresponding to the ID area and being provided adjacent to and behind the ID area in the same sector as the ID area, and an error correcting unit for correcting errors in the control information in the ID area using the error correcting code before the data in the data area corresponding to the ID area and provided in the same sector as the ID area is read or recorded.
摘要翻译：一种磁盘记录和再现装置，包括用于在控制信息中插入与控制信息相关的纠错码的单元，与数据有关的控制信息，用于将控制信息和数据记录在记录区中的记录控制单元磁盘，记录区域具有多个扇区，每个扇区具有用于记录控制信息的ID区域和用于记录数据的数据区域，与ID区域对应的数据区域并且设置在该区域的后面 ID区域，以及纠错单元，用于使用与ID区域相对应的数据区域中的数据之前的纠错码来校正ID区域中的控制信息中的错误，并且设置在同一扇区中因为ID区被读取或记录。

10. 发明授权

US5157354A Phase-locked loop IC having ECL buffers 失效
标题翻译：具有ECL缓冲器的锁相环IC
公开(公告)号：US5157354A
公开(公告)日：1992-10-20
申请号：US799442
申请日：1991-11-27
申请人： Eisaku Saiki , Shintaro Suzumura , Fukashi Ohi , Akira Uragami , Tsuyoshi Tateyama
发明人： Eisaku Saiki , Shintaro Suzumura , Fukashi Ohi , Akira Uragami , Tsuyoshi Tateyama
IPC分类号： G11B20/12 , G11B20/14 , H03D13/00 , H03K19/0175 , H03L7/06 , H03L7/10 , H03L7/107 , H03L7/113
CPC分类号： G11B20/1403 , H03D13/004 , H03K19/017518 , H03L7/107 , H03L7/113 , G11B20/1258
摘要： A phase locked loop IC comprising a voltage controlled oscillator which generates a clock signal in accordance with a control voltage, a first ECL input buffer which is an input buffer for a signal to be synchronized, a phase-lock capture circuit for producing a current determinative of the control voltage in accordance with the phase difference and the frequency difference between the signal to be synchronized and the clock signal, and a phase-lock follow-up circuit for producing a current determinative of the control voltage in accordance with the phase difference between the clock signal and the signal to be synchronized; wherein the supply voltage system of the first ECL input buffer is so disposed as to be isolated from any of the supply voltage systems of the voltage-controlled oscillator, the phase-lock capture circuit and the phase lock follow-up circuit, while the ground system of the first ECL input buffer is so disposed as to be insolated from any of the ground systems of the voltage-controlled oscillator, the phase-lock capture circuit and the phase-lock follow-up circuit.
摘要翻译：一种锁相环IC，包括根据控制电压产生时钟信号的压控振荡器，作为用于待同步信号的输入缓冲器的第一ECL输入缓冲器，用于产生电流确定性的锁相捕获电路根据相位差和要同步的信号与时钟信号之间的频率差的控制电压，以及相位锁定跟随电路，用于根据相位差的相位差产生控制电压的电流确定时钟信号和要同步的信号; 其中第一ECL输入缓冲器的电源电压系统被布置为与压控振荡器，锁相捕获电路和锁相跟随电路的任何一个电压系统隔离，而地第一ECL输入缓冲器的系统被布置成从压控振荡器，锁相捕获电路和锁相跟随电路的任何地面系统中被绝缘。

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