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    • 1. 发明授权
    • Magnetic disc storage apparatus
    • 磁盘存储装置
    • US06903894B2
    • 2005-06-07
    • US10012401
    • 2001-12-12
    • Yasuhiko KokamiKenji NishimuraTatsuya Negishi
    • Yasuhiko KokamiKenji NishimuraTatsuya Negishi
    • G11B21/08G11B5/012G11B5/55G11B5/596G11B21/10G11B23/00H02P25/06
    • G11B5/5547G11B5/012G11B23/0007
    • A magnetic disc storage apparatus including a magnetic head for reading information from a storage track on a magnetic storage disc driven to spin, a voice coil motor for moving the magnetic head above the disc, and a magnetic head drive system for executing a position control of the magnetic head by controlling driving current of the voice coil motor by a feedback control while monitoring a state of reading the magnetic head in which the magnetic head drive system includes multi-mode driving means for executing a linear drive mode for controlling, as an analog amount, the driving current of the voice coil motor when an amount of driving to move the magnetic head is small and executing a pulse drive mode for controlling, as a digital amount, the driving current of the voice coil motor when the amount of driving to move the magnetic head is large.By the invention, both of high accuracy formation of position control of the magnetic head in tracking and high speed formation of access by shortening seek time are enabled while effectively reducing heating or EMI inducing read/write error.
    • 一种磁盘存储装置,包括用于从驱动旋转的磁盘上的存储轨道读取信息的磁头,用于使磁头移动到盘上方的音圈电机,以及用于执行位置控制的磁头驱动系统 通过控制音圈电动机的驱动电流,同时监视读取磁头的状态,其中磁头驱动系统包括多模驱动装置,用于执行用于控制的线性驱动模式,作为模拟 当驱动磁头的驱动量小时,音圈电动机的驱动电流很小,并且执行脉冲驱动模式,用于当驾驶到驾驶员的数量为数字量时控制音圈电动机的驱动电流 移动磁头大。 通过本发明,可以实现高精度地形成磁头在跟踪中的位置控制和通过缩短查找时间的高速形成访问,同时有效地减少加热或EMI引起的读/写错误。
    • 2. 发明授权
    • Magnetic disc storage apparatus
    • 磁盘存储装置
    • US06975479B2
    • 2005-12-13
    • US10144035
    • 2002-05-14
    • Yasuhiko KokamiKenji NishimuraTatsuya Negishi
    • Yasuhiko KokamiKenji NishimuraTatsuya Negishi
    • G11B21/08G11B5/55G11B5/596G11B21/10H02P25/06
    • G11B5/5547G11B5/022G11B5/59605
    • There is provided a technique for controlling drive of a voice coil motor which can select, with priority for effective reduction, any one of heat generation and EMI noise which are presumed to induce a read/write error and for simultaneously realizing the positioning control of magnetic head with higher accuracy during the tracking operation and the high speed access with shortening of the seek operation period. The magnetic disc storage apparatus introducing this technique is provided with a mode to drive with linear control a coil of the voice coil motor from both terminals and a mode to drive one terminal of coil with linear control and the other terminal with pulse width control. Thereby, the coil is driven in the drive mode of linear control during the tracking operation, while one terminal of coil is driven with linear control and the other terminal with pulse width control during the seek operation.
    • 提供了一种用于控制音圈电动机的驱动技术,其可以优先选择被认为引起读/写错误的任何一种发热和EMI噪声,同时实现磁性定位控制 在跟踪操作期间具有较高精度的头部,并且通过缩短搜索操作周期进行高速访问。 引入该技术的磁盘存储装置具有通过线性控制来驱动来自两端的音圈电动机的线圈和通过线性控制来驱动线圈的一个端子的模式以及具有脉冲宽度控制的另一个端子的模式。 由此,在跟踪操作期间,线圈被驱动为线性控制的驱动模式,而线圈的一个端子被线性控制驱动,另一个端子在寻道操作期间具有脉冲宽度控制。
    • 3. 发明申请
    • IMAGE DISPLAY DEVICE
    • 图像显示设备
    • US20130321688A1
    • 2013-12-05
    • US13985833
    • 2012-03-08
    • Kenji NishimuraAzusa Gojyo
    • Kenji NishimuraAzusa Gojyo
    • H04N5/232
    • H04N5/23293G01C21/3647G06T11/00
    • Disclosed is a technique for providing an image display device enabling a user to understand the entire correspondence relationship between a three-dimensional photographed image and a two-dimensional map image. According to the technique, when a photographed image and a map image in the imaging position are separately displayed on the screen of an image display unit 33, a map drawing unit 24 reads the position information (x, y) of the camera and the azimuth angle φ of the camera, reads a view angle θ of the camera, and reads map data around the imaging range of the camera using the position information (x, y) of the camera to process and draw the map image so that the view angle θ and the azimuth angle φ match the view angle θ and the azimuth angle φ of the photographed image taken by the camera.
    • 公开了一种用于提供能够使用户了解三维拍摄图像和二维地图图像之间的整体对应关系的图像显示装置的技术。 根据该技术,当拍摄图像和成像位置中的地图图像被分别显示在图像显示单元33的屏幕上时,地图绘制单元24读取相机的位置信息(x,y)和方位角 摄像机的角度角度读取摄像机的视角θ,并且使用摄像机的位置信息(x,y)来读取摄像机的摄像范围周围的地图数据,以处理并绘制地图图像,使得视角 θ和方位角phi与摄像机拍摄的拍摄图像的视角θ和方位角φi相匹配。