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1. 发明授权

US06862260B2 Correction method, correction circuit, and light information storage apparatus 失效
标题翻译：校正方法，校正电路和光信息存储装置
公开(公告)号：US06862260B2
公开(公告)日：2005-03-01
申请号：US10624119
申请日：2003-07-21
申请人： Nozomu Okazaki
发明人： Nozomu Okazaki
IPC分类号： G06G7/14 , G11B7/00 , G11B7/09 , G11B7/095
CPC分类号： G11B7/0941
摘要： The correction method of the present invention includes a step for respectively inputting a same-signal pair composed of two signals each having the same signal waveform to two input lines of a normalization circuit, and then adjusting the difference between the values of the two offset signals added to those two input lines to make the output of the normalization circuit fixed or coincide with a predetermined value. The correction method further includes a step for respectively inputting to the two input lines of the normalization circuit a fixed-ratio-signal pair composed of two signals in which the ratio between the amplitudes of waveforms is fixed, and then adjusting each of the two offset signals added to those two input lines while the difference between the values of the two offset signals is maintained as is, to make the output of the normalization circuit fixed or coincide with a predetermined value.
摘要翻译：本发明的校正方法包括一个步骤，用于分别将由具有相同信号波形的两个信号组成的相同信号对输入到归一化电路的两个输入线，然后调整两个偏移信号的值之间的差值添加到这两条输入线，使归一化电路的输出固定或与预定值一致。该校正方法还包括一个步骤，用于分别向归一化电路的两条输入线输入固定比率信号对，该固定比信号对由两个信号组成，其中波形幅度之间的比率是固定的，然后调整两个偏移量信号被添加到这两个输入行，同时保持两个偏移信号的值之间的差异，使归一化电路的输出固定或与预定值一致。

2. 发明申请

US20100061008A1 MAGNETIC DISK DRIVE 审中-公开
标题翻译：磁盘驱动器
公开(公告)号：US20100061008A1
公开(公告)日：2010-03-11
申请号：US12505945
申请日：2009-07-20
申请人： Masaharu Moritsugu , Nozomu Okazaki , Hiroki Matsushita , Takehiko Katoh , Tsuneki Takahashi
发明人： Masaharu Moritsugu , Nozomu Okazaki , Hiroki Matsushita , Takehiko Katoh , Tsuneki Takahashi
IPC分类号： G11B19/02
CPC分类号： G11B19/02
摘要： A magnetic disk drive includes a switching regulator configured to generate an output voltage, and a magnetic disk control unit that receives the output voltage as a power supply and performs data write and read operations on a magnetic recording medium. The switching regulator includes a voltage conversion part configured to generate a second voltage by switching a first voltage, a smoothing part configured to smooth the second voltage to thus produce an output voltage, a control part configured to control the switching on the basis of a difference between the output voltage and a reference voltage to thus stabilize the output voltage, and a reference voltage changing part configured to change the reference voltage in accordance with an operation mode of the magnetic disk control unit.
摘要翻译：磁盘驱动器包括被配置为产生输出电压的开关调节器和接收作为电源的输出电压并对磁记录介质执行数据写入和读取操作的磁盘控制单元。开关调节器包括：电压转换部，被配置为通过切换第一电压产生第二电压;平滑部，被配置为使第二电压平滑，从而产生输出电压;控制部，被配置为基于差异来控制开关在输出电压和参考电压之间，使输出电压稳定，以及参考电压变化部，其被配置为根据磁盘控制单元的操作模式改变参考电压。

3. 发明授权

US6026068A Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US6026068A
公开(公告)日：2000-02-15
申请号：US717256
申请日：1996-09-20
申请人： Kiyoshi Obata , Shuko Saito , Nozomu Okazaki , Tetsuya Tsuji
发明人： Kiyoshi Obata , Shuko Saito , Nozomu Okazaki , Tetsuya Tsuji
IPC分类号： G11B7/0037 , G11B11/105 , G11B17/04 , G11B17/041 , G11B19/02 , G11B19/12 , G11B19/247 , G11B19/26 , G11B11/00 , G11B7/00
CPC分类号： G11B17/057 , G11B19/02 , G11B19/12 , G11B19/247 , G11B19/26 , G11B11/10597 , G11B2020/183 , G11B7/0037
摘要： A constant linear velocity control (CLV control) for controlling a spindle motor so as to set a linear velocity in a track circumferential direction to be constant and a constant angular velocity control (CAV control) for controlling the spindle motor so as to set a rotation of a medium to be constant are switched and controlled for a change in position in the radial direction of the medium of a pickup in accordance with a detection result of the medium loaded. In the switching control, selection information of the CLV control and the CAV control is previously registered in accordance with the kind of medium and the CLV control or the CAV control is selected in accordance with the corresponding selection information obtained from the detection result of the medium.
摘要翻译：用于控制主轴电动机以将轨道圆周方向上的线速度设定为恒定的恒定线速度控制（CLV控制）和用于控制主轴电机的恒定角速度控制（CAV控制）以设定旋转根据介质负载的检测结果，切换和控制介质的拾取器的介质的径向位置的变化。在切换控制中，CLV控制和CAV控制的选择信息根据介质的种类预先登记，并且根据从介质的检测结果获得的相应选择信息来选择CLV控制或CAV控制。

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