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    • 31. 发明授权
    • Open view quadrature birdcage coil
    • 打开视图正交鸟笼线圈
    • US06316941B1
    • 2001-11-13
    • US09513062
    • 2000-02-24
    • Hiroyuki FujitaGordon D. DeMeesterWilliam O. Braum
    • Hiroyuki FujitaGordon D. DeMeesterWilliam O. Braum
    • G01V300
    • G01R33/34046
    • A tunable radio frequency birdcage coil (30) is oriented vertically in a bore-type magnetic resonance apparatus. The birdcage coil (30) includes a pair of end rings (60, 62) disposed in parallel planes along a coil axis which is orthogonal to the main magnetic field. A plurality of rungs (64) electrically interconnect the end rings (60, 62) to form a generally cylindrical volume. The end rings (60, 62) and rungs (64) are mounted on a hinged (68) dielectric former (66). Conductive connectors (70) releasably fasten the end rings (60, 62) so that the coil (30) may be opened and closed to receive a portion of a subject to be examined. A conductive loop (80) is inductively coupled and positioned parallel to the end rings (60, 62). The conductive loop (80) is slidably adjustable along the coil axis for matching and tuning end-ring modes of the coil. The coil is oriented to provide a subject disposed therein with an open view for fMRI applications. Means for stimulating the visual senses (100) is mounted adjacent the examination region (14) to facilitate fMRI applications.
    • 可调谐射频鸟笼线圈(30)在孔型磁共振装置中垂直取向。 鸟笼线圈(30)包括沿着与主磁场正交的线圈轴设置在平行平面中的一对端环(60,62)。 多个梯级(64)电连接端环(60,62)以形成大致圆柱形的体积。 端环(60,62)和梯级(64)安装在铰接(68)电介质成形器(66)上。 导电连接器(70)可释放地紧固端环(60,62),使得线圈(30)可以被打开和关闭以接收待检查对象的一部分。 导电回路(80)感应耦合并平行于端环(60,62)定位。 导电回路(80)可沿着线圈轴线可滑动地调节,以匹配和调谐线圈的端环模式。 线圈被定向成提供设置在其中的对象用于fMRI应用的开放视图。 用于刺激视觉感觉的装置(100)安装在检查区域(14)附近,以便于fMRI应用。
    • 35. 发明授权
    • Battery protective circuit
    • 电池保护电路
    • US5945810A
    • 1999-08-31
    • US68542
    • 1998-05-13
    • Hiroyuki FujitaKoichi Inoue
    • Hiroyuki FujitaKoichi Inoue
    • H02H7/18H02J7/00H01M10/46
    • H02J7/0031H02J7/0029H02J7/008
    • A battery protection circuit has an overcharge detection circuit that detects overcharge of a battery and a charge inhibition circuit that, when overcharge is detected, inhibits charging with a delay produced by a capacitance element. This charge inhibition circuit can detect a short circuit in the capacitance element that is used to produce a predetermined delay, and, when it detects a short circuit in the capacitance element, it inhibits charging without delay. Thus, since charging is inhibited even when the capacitance element is short-circuited, a power supply unit incorporating this battery protection circuit is safer to use.
    • PCT No.PCT / JP97 / 03375 Sec。 371日期1998年5月13日 102(e)日期1998年5月13日PCT 1997年9月22日PCT公布。 第WO98 / 13923号公报 日期:1998年4月2日电池保护电路具有过充电检测电路,其检测电池的过充电和充电抑制电路,当检测到过充电时,由电容元件产生的延迟抑制充电。 该充电禁止电路可以检测用于产生预定延迟的电容元件中的短路,并且当其检测到电容元件中的短路时,其无延迟地禁止充电。 因此,即使当电容元件短路时也禁止充电,因此使用该电池保护电路的电源单元更安全。
    • 37. 发明授权
    • File management system and file management method
    • 文件管理系统和文件管理方法
    • US09323624B2
    • 2016-04-26
    • US14130642
    • 2012-08-20
    • Osamu MiyoshiEiichiro ShiodaHiroyuki Fujita
    • Osamu MiyoshiEiichiro ShiodaHiroyuki Fujita
    • G06F17/30G06F7/00G06F11/14G06F3/06
    • G06F11/1458G06F3/0617G06F3/0664G06F3/0689G06F11/1456G06F11/1469G06F2201/815
    • [Problem] To provide a file management system and file management method that are able to perform a backup process efficiently by means of a configuration that uses a virtual file system metadatabase from a backup process side also. [Solution] The file management system is provided with a virtual drive controller (110) that controls a virtual drive (5), a metadatabase (210) that contains information for associating a virtual file and a physical file that is saved in a storage device (6), a backup controller (120) that manages the backup process of a file, and a backup status management database (220) used in backup process management. The virtual drive controller (110) registers updated file information in the backup status management database (220). The backup controller (120) references the backup status management database (220) and the metadatabase (210), and backs up the file.
    • [问题]提供能够通过使用来自备份进程侧的虚拟文件系统元数据库的配置来有效地执行备份处理的文件管理系统和文件管理方法。 [解决方案]文件管理系统配备有控制虚拟驱动器(5)的虚拟驱动器控制器(110),包含用于关联虚拟文件和存储在存储设备中的物理文件的信息的元数据库(210) (6),管理文件的备份处理的备份控制器(120)和备份过程管理中使用的备份状态管理数据库(220)。 虚拟驱动器控制器(110)将更新的文件信息注册在备份状态管理数据库(220)中。 备份控制器(120)引用备份状态管理数据库(220)和元数据库(210),并备份该文件。