公开(公告)号：US20070217054A1

公开(公告)日：2007-09-20

申请号：US11505509

申请日：2006-08-17

申请人： Atsuo Iida

发明人： Atsuo Iida

IPC分类号： G11B21/02 ,  G11B27/36 ,  G11B15/04

CPC分类号： G11B5/59633

摘要： A recording density of a recording medium is set by establishing a predetermined relationship between guaranteed write/erase endurance values and recording density values for the recording medium, and then selecting a required guaranteed write/erase endurance. A recording density value corresponding to the required guaranteed write/erase endurance is determined from the predetermined relationship, and the recording density of the recording medium set based on the determined recording density value.

摘要翻译： 记录介质的记录密度通过建立记录介质的保证写入/擦除耐久值和记录密度值之间的预定关系，然后选择所需的保证写入/擦除耐久性来设置。 根据所确定的记录密度值，从预定关系和记录介质的记录密度确定与所需的保证写入/擦除耐久性对应的记录密度值。

公开(公告)号：US5353797A

公开(公告)日：1994-10-11

申请号：US88057

申请日：1993-07-08

申请人： Tetsuya Matsushima ,  Atsuo Iida ,  Keiichi Murakami ,  Takuya Noda

发明人： Tetsuya Matsushima ,  Atsuo Iida ,  Keiichi Murakami ,  Takuya Noda

IPC分类号： G01S15/89 ,  G10K11/34 ,  A61B8/00

CPC分类号： G01S15/8918 ,  G10K11/346

摘要： An ultrasonic diagnostic apparatus including ultrasonic transducers. The ultrasonic diagnostic apparatus performs calculations for respective ultrasonic transducers to determine at which focal position a signal having just been received by the transducers is reflected in accordance with a lapse of time from a time when ultrasonic waves are transmitted. A delay time of respective received signals obtained from the transducers are determined in accordance with the results of the calculations. According to the present invention, control data which determines the delay time is stored in a first stored apparatus, compensation data which compensates the control data is stored in a second storage apparatus. The control data and compensation data read out respectively from these first and second storage apparatuses are added to one another, and the delay time for transmission and reception is determined according to the sum of the control data and compensation data.

摘要翻译： 一种超声波诊断装置，包括超声波换能器。 超声波诊断装置对各个超声波换能器进行计算，以根据从超声波发送的时刻起经过的时间来确定刚刚被换能器接收到的信号的哪个焦点位置。 根据计算结果确定从换能器获得的各个接收信号的延迟时间。 根据本发明，将确定延迟时间的控制数据存储在第一存储装置中，补偿控制数据的补偿数据被存储在第二存储装置中。 分别从这些第一和第二存储装置读出的控制数据和补偿数据彼此相加，并且根据控制数据和补偿数据的和来确定发送和接收的延迟时间。

公开(公告)号：US07599143B2

公开(公告)日：2009-10-06

申请号：US11504589

申请日：2006-08-16

申请人： Atsuo Iida

发明人： Atsuo Iida

IPC分类号： G11B21/02

CPC分类号： G11B5/6029 ,  G11B5/6005 ,  G11B7/122 ,  G11B21/21

摘要： There is provided an information recording/reproduction apparatus, a head levitation height control method, and a head levitation control circuit capable of adequately controlling a head levitation height.An information recording/reproduction apparatus having a head 41 that performs recording or reproduction of information on/from a recording medium, comprises: a drive section 43a that changes the levitation height of the head 41 relative to the recording medium based on a first drive method; a drive section 43b that changes the levitation height of the head 41 relative to the recording medium based on a second drive method different from the first drive method; a levitation height measurement section that measures the levitation height of the head 41; and a controller that controls the drive sections 43a and 43b based on the head levitation height measured by the levitation height measurement section.

摘要翻译： 提供了一种信息记录/再现装置，头部悬浮高度控制方法和能够适当地控制头部悬浮高度的头部悬浮控制电路。 一种信息记录/再现装置，具有在记录介质上执行信息的记录或再现的头部41，包括：基于第一驱动方法改变头部41相对于记录介质的悬浮高度的驱动部分43a ; 基于与第一驱动方法不同的第二驱动方法来改变头部41相对于记录介质的悬浮高度的驱动部分43b; 用于测量头部41的悬浮高度的悬浮高度测量部分; 以及基于由悬浮高度测量部测量的头悬浮高度来控制驱动部43a和43b的控制器。

公开(公告)号：US07369341B2

公开(公告)日：2008-05-06

申请号：US11476584

申请日：2006-06-29

申请人： Toru Yokohata ,  Takahiro Imamura ,  Atsuo Iida

发明人： Toru Yokohata ,  Takahiro Imamura ,  Atsuo Iida

IPC分类号： G11B27/36 ,  G11B21/02

CPC分类号： G11B5/6029 ,  G11B5/6005 ,  G11B2220/2516

摘要： Firstly, in order to check the noise level of a device, DC erasure is applied to a magnetic recording medium and the magnetic recording medium is read. Then, a test signal including a first order component and a third order harmonic frequency is written into the magnetic recording medium. The written test signal is read and Fourier transform is applied to the read signal to obtain the respective amplitude of the first order and third order harmonic components. Then, it is determined whether the amplitude of the third order harmonic component is sufficiently large compared with the obtained noise level. If the amplitude is sufficiently large, the flying height of the head is estimated using both the first order and third order harmonic components. If the amplitude is not sufficiently large, the flying height of the head is estimated using only the first order component.

摘要翻译： 首先，为了检查设备的噪声水平，将DC擦除应用于磁记录介质，并读取磁记录介质。 然后，将包括一阶分量和三阶谐波频率的测试信号写入磁记录介质。 写入的测试信号被读取并且对读取信号进行傅里叶变换，以获得一阶和三阶谐波分量的相应振幅。 然后，与获得的噪声电平相比，确定三阶谐波分量的幅度是否足够大。 如果振幅足够大，则使用一阶和三阶谐波分量来估计磁头的飞行高度。 如果振幅不够大，则仅使用一阶分量来估计头的飞行高度。

公开(公告)号：US20070230013A1

公开(公告)日：2007-10-04

申请号：US11476584

申请日：2006-06-29

申请人： Toru Yokohata ,  Takahiro Imamura ,  Atsuo Iida

发明人： Toru Yokohata ,  Takahiro Imamura ,  Atsuo Iida

IPC分类号： G11B21/02 ,  G11B27/36

CPC分类号： G11B5/6029 ,  G11B5/6005 ,  G11B2220/2516

摘要： Firstly, in order to check the noise level of a device, DC erasure is applied to a magnetic recording medium and the magnetic recording medium is read. Then, a test signal including a first order component and a third order harmonic frequency is written into the magnetic recording medium. The written test signal is read and Fourier transform is applied to the read signal to obtain the respective amplitude of the first order and third order harmonic components. Then, it is determined whether the amplitude of the third order harmonic component is sufficiently large compared with the obtained noise level. If the amplitude is sufficiently large, the flying height of the head is estimated using both the first order and third order harmonic components. If the amplitude is not sufficiently large, the flying height of the head is estimated using only the first order component.

摘要翻译： 首先，为了检查设备的噪声水平，将DC擦除应用于磁记录介质，并读取磁记录介质。 然后，将包括一阶分量和三阶谐波频率的测试信号写入磁记录介质。 写入的测试信号被读取并且对读取信号进行傅里叶变换，以获得一阶和三阶谐波分量的相应振幅。 然后，与获得的噪声电平相比，确定三阶谐波分量的幅度是否足够大。 如果振幅足够大，则使用一阶和三阶谐波分量来估计磁头的飞行高度。 如果振幅不够大，则仅使用一阶分量来估计头的飞行高度。

公开(公告)号：US20050283653A1

公开(公告)日：2005-12-22

申请号：US11205041

申请日：2005-08-17

申请人： Yasuo Noguchi ,  Riichiro Take ,  Katsuhiko Nishikawa ,  Atsuo Iida ,  Toru Yokohata

发明人： Yasuo Noguchi ,  Riichiro Take ,  Katsuhiko Nishikawa ,  Atsuo Iida ,  Toru Yokohata

IPC分类号： G06F11/00 ,  G06F11/10 ,  G11B5/012 ,  G11B5/48 ,  G11B20/10 ,  G11B20/12

CPC分类号： G06F11/1076 ,  G06F11/2069 ,  G06F11/2082 ,  G06F2211/1092 ,  G11B5/012 ,  G11B5/4886 ,  G11B5/4976 ,  G11B20/10 ,  G11B2005/0002 ,  G11B2220/2516

摘要： The present invention aims at offering a magnetic disk device for configuring RAID in a single disk device. The device can configure RAID using one disk and furthermore only one surface (referred to as a single-surface RAID method) neither requiring a plurality of actuators nor performing a data writing processing, etc. more than once. For that purpose, a plurality of data access heads is provided for each arm and the heads are positioned so as to access different tracks on a same surface on a disk.

摘要翻译： 本发明旨在提供一种用于在单个盘装置中配置RAID的磁盘装置。 该设备可以使用一个磁盘，而且只需要一个表面（称为单面RAID方法），不需要多个致动器，也不执行数据写入处理等。 为此，为每个臂提供多个数据访问头，并且头被定位成访问盘上相同表面上的不同轨道。

公开(公告)号：US06492633B2

公开(公告)日：2002-12-10

申请号：US09761752

申请日：2001-01-18

申请人： Fumihiko Nakazawa ,  Satoshi Sano ,  Atsuo Iida ,  Nobuyasu Yamaguchi ,  Yasuhide Iwamoto

发明人： Fumihiko Nakazawa ,  Satoshi Sano ,  Atsuo Iida ,  Nobuyasu Yamaguchi ,  Yasuhide Iwamoto

IPC分类号： G06M700

CPC分类号： G06F3/0423

摘要： In order to measure a scanning light cut-off region, an output of a light receiving element and a threshold value set by an MPU are compared by a comparator and a region where the former is smaller than the latter is measured as the scanning light cut-off region. During one cycle of optical scanning, this threshold value is switched in a plurality of stages according to the scanning angle. By accurately measuring the scanning light cut-off region, the correct position and size of an indicator such as a finger or pen are calculated.

摘要翻译： 为了测量扫描光截止区域，通过比较器比较光接收元件的输出和由MPU设置的阈值，并且测量前者比后者小的区域作为扫描光切断 区域。 在光扫描的一个周期期间，该阈值根据扫描角度被切换成多个级。 通过精确地测量扫描光截止区域，计算诸如手指或笔的指示器的正确位置和大小。

公开(公告)号：US06268868B1

公开(公告)日：2001-07-31

申请号：US09031190

申请日：1998-02-26

申请人： Nobuyasu Yamaguchi ,  Satoshi Sano ,  Fumihiko Nakazawa ,  Atsuo Iida ,  Fumitaka Abe

发明人： Nobuyasu Yamaguchi ,  Satoshi Sano ,  Fumihiko Nakazawa ,  Atsuo Iida ,  Fumitaka Abe

IPC分类号： G06F1500

CPC分类号： G06F3/0488 ,  G06F3/0423

摘要： An information displaying apparatus having a display unit for displaying information on a display screen 10, an indicator detector provided in the vicinity of the display screen 10 for detecting a position in a predetermined area on the display screen 10 indicated by an indicator and a size of the indicator, and an image control unit 52 for displaying an image on the screen 10 of the display unit according to the detected result by the indicator detector, wherein the image control unit 52 displays images on the display screen 10 of the display unit in different manners according to the position and/or size of the indicator detected by the indicator detector. According to this apparatus, for example, a thickness of one line can be changed and can be changed in steps during the drawing without specifying a size of a point and a thickness of a line to be drawn before the drawing operation. Moreover, subtle blur, etc. obtained in such a manner that an image is drawn by a writing brush dripped in the ink can be expressed.

摘要翻译： 一种信息显示装置，具有用于在显示屏幕10上显示信息的显示单元，设置在显示屏10附近的指示器检测器，用于检测由指示器指示的显示屏幕10上的预定区域中的位置和尺寸 指示器，以及图像控制单元52，用于根据指示器检测器的检测结果在显示单元的屏幕10上显示图像，其中图像控制单元52在不同的显示单元的显示屏幕10上显示图像 根据由指示器检测器检测到的指示器的位置和/或尺寸的方式。 根据该装置，例如，可以改变一行的厚度，并且可以在绘制期间以步骤改变，而不需要在绘制操作之前指定要绘制的线的点的大小和厚度。 此外，可以表达以这样的方式获得的微妙的模糊，即通过在墨水中滴落的书写刷子来绘制图像。

公开(公告)号：US5640959A

公开(公告)日：1997-06-24

申请号：US354165

申请日：1994-12-08

申请人： Yasushi Hara ,  Kazuhiro Watanabe ,  Atsuo Iida

发明人： Yasushi Hara ,  Kazuhiro Watanabe ,  Atsuo Iida

IPC分类号： A61B8/14 ,  G01N29/26 ,  G01S7/52 ,  G01S15/89 ,  G10K11/34 ,  A61B8/00

CPC分类号： G01S15/8927 ,  G01N29/262 ,  G01S15/8918 ,  G01S7/52063 ,  G10K11/34 ,  G01N2291/106 ,  G01S7/52046

摘要： There is provided an ultrasonic diagnostic apparatus in which a plurality of piezoelectric transducers are arranged in a predetermined direction so as to transmit and receive ultrasonic waves to obtain a tomographic image on the inside of the subject. The ultrasonic diagnostic apparatus adopts such a scheme that a sector scan is electronically performed, and is capable of preventing deterioration of an image by reducing an influence of reflection of the ultrasonic waves from the ribs, and forming a good image improved in resolution. An intersection of scan lines at at least receiving end is set up between rib-to-rib which are located at the position deeper than the body surface of the subject. An aperture for transmitting and receiving of ultrasonic waves along the scan line of the central part of the sector configuration is wider than that along the scan line of the edge portion of the sector configuration.

摘要翻译： 提供了一种超声波诊断装置，其中多个压电换能器沿预定方向布置以便发送和接收超声波，以在被检体内部获得断层图像。 超声波诊断装置采用电子地执行扇区扫描的方案，并且能够通过减少来自肋的超声波的反射的影响来防止图像的劣化，并且形成分辨率提高的良好的图像。 至少在接收端的扫描线的交叉点被设置在位于比被摄体的身体表面更深的位置处的肋对肋之间。 沿着扇形结构的中心部分的扫描线发送和接收超声波的孔比沿着扇形配置的边缘部分的扫描线的孔更宽。

公开(公告)号：US5375470A

公开(公告)日：1994-12-27

申请号：US811364

申请日：1991-12-20

申请人： Tetsuya Matsushima ,  Yuichi Sugiyama ,  Atsuo Iida

发明人： Tetsuya Matsushima ,  Yuichi Sugiyama ,  Atsuo Iida

IPC分类号： G01S15/89 ,  G10K11/34 ,  G01N29/06 ,  A61B8/08

CPC分类号： G01S15/8909 ,  G10K11/346

摘要： An acoustic imaging system includes pairs of variable gain amplifiers for deriving essentially pairs of signals from respective signals generated in respective ultrasonic vibrators and the pairs of signals are superimposed on each other in a time difference corresponding to a phase angle of .pi./2 in frequency of ultrasonic waves. Amplification factors of the variable gain amplifiers are controlled so that the desired phase shift of the superimposed signals is obtained to attain dynamic focusing. Another acoustic imaging system includes a switch circuit having a two stage matrix switches construction that performs matrix switch functions in a smaller number of switch elements. Still another acoustic imaging system includes constituents for the aforementioned phase control for fine adjustment of delay time, the aforementioned switch circuit for rough adjustment of delay time, and variable gain amplifiers that perform smooth switching of the delay time.

摘要翻译： 声学成像系统包括成对的可变增益放大器，用于从相应的超声波振动器中产生的相应信号中获取基本上的信号对，并且这些信号对以与pi / 2的相位角对应的时间相互叠加 超声波。 控制可变增益放大器的放大系数，使得获得叠加信号的期望相移以获得动态聚焦。 另一种声学成像系统包括具有在较少数量的开关元件中执行矩阵切换功能的两级矩阵开关结构的开关电路。 另一种声学成像系统包括用于上述相位控制的微调延迟时间的组成部分，用于延迟时间粗略调节的上述开关电路以及执行延迟时间的平滑切换的可变增益放大器。