Intrusion detection radio appliance
    1.
    发明授权
    Intrusion detection radio appliance 失效
    入侵检测无线电设备

    公开(公告)号:US06833788B1

    公开(公告)日:2004-12-21

    申请号:US10071808

    申请日:2002-02-06

    IPC分类号: G08B2100

    CPC分类号: G08B13/19

    摘要: A remote intrusion detection radio appliance includes a housing having a passive motion detector and related circuitry to monitor and warn of unwanted intrusions, by operating an external radio unit or cellular telephone plugged into the appliance. The appliance, when activated, broadcasts an audio output and then monitors an area in which it is located by audio and/or video for an intruder.

    摘要翻译: 远程入侵检测无线电设备包括具有被动运动检测器和相关电路的壳体,通过操作插入到设备中的外部无线电单元或蜂窝电话来监视和警告不想要的入侵。 设备在被激活时广播音频输出,然后通过用于入侵者的音频和/或视频监视其所在的区域。

    Electrical resistance cooker and automatic circuit controller
    2.
    发明授权
    Electrical resistance cooker and automatic circuit controller 失效
    电阻电磁炉和自动电路控制器

    公开(公告)号:US5928546A

    公开(公告)日:1999-07-27

    申请号:US920655

    申请日:1997-08-29

    IPC分类号: A47J37/06 H05B3/00 H05B1/02

    CPC分类号: H05B3/0023 A47J37/0611

    摘要: An automatic circuit controller for cooking food interposed between electrodes connected with a source of AC by electrical resistance in which the resistance increases until the food is cooked and rapidly declines is formed by a current switching element in series in one wire of the AC source and a current sensing element in series in another wire of the AC source. The sensed current is rectified, reduced in voltage, converted from analog to digital and applied to a microprocessor connected with the switching element for controlling the current applied to the food by delaying the time into every half cycle in response to current measuring circuitry and a zero crossing detector for triggering the switching element on. The microprocessor detects the current peak of electrical resistance of the food and stops the cooking action when the current declines to a predetermined percent of the peak.

    摘要翻译: 一种用于烹饪食物的自动电路控制器,其通过电阻连接到电极之间的电极进行烹饪,所述电阻通过电阻增加直到食物被烹饪并迅速下降,由AC电源的一根线中的电流开关元件形成,并且 电流感测元件串联在交流电源的另一根线中。 感测到的电流被整流,电压降低,从模拟转换成数字,并且应用于与开关元件连接的微处理器,用于通过将时间延迟到每半个周期以响应于当前测量电路而控制施加到食物的电流,零 用于触发开关元件的交叉检测器。 当电流下降到峰值的预定百分比时,微处理器检测食物的电阻的当前峰值并停止烹饪动作。

    Dual beam laser device for linear and planar alignment

    公开(公告)号:US5838430A

    公开(公告)日:1998-11-17

    申请号:US675655

    申请日:1996-07-03

    IPC分类号: G01B11/26 G01B11/27 G01C15/00

    摘要: A high precision alignment apparatus is provided that utilizes a semiconductor laser device, such as a laser diode, to provide a source laser beam. The alignment apparatus permits the division of a pair of beam components from the source laser beam useful for either linear or planar alignment. A centroid measurement between the beam components provides a corrected reference point that accounts for the inherent instability of the source laser beam to yield a high level of alignment accuracy. For linear alignment purposes, the beam components are collinearly directed. In the alternative, for planar alignment purposes, the beam components may be either collinear or directed in opposite directions, and rotated to sweep respective planar regions. The laser alignment apparatus is capable of providing a level of accuracy heretofore achievable only with gas lasers, while maintaining the economical attributes of commercial semiconductor laser diodes.

    Multiple channel fiber optic continuity test system
    4.
    发明授权
    Multiple channel fiber optic continuity test system 失效
    多通道光纤连续性测试系统

    公开(公告)号:US4899045A

    公开(公告)日:1990-02-06

    申请号:US197931

    申请日:1988-05-24

    申请人: David M. Kramer

    发明人: David M. Kramer

    IPC分类号: G01M11/00

    CPC分类号: G01M11/31

    摘要: An optical system for individually testing each one of a plurality of fibers for continuity. Each fiber having a proximal end and a distal end with a dichroic reflector at each distal end reflective of wavelengths respective to a source of testing light and transmissive to other wavelengths. The selection of which fiber is to be tested is only a matter of manipulating a rotator element which has the capacity to rotate the angle of polarization by 90 degrees. The polarization of the light determines the respective fiber to be tested.

    摘要翻译: 一种用于单独测试多个光纤中的每一个以获得连续性的光学系统。 每个光纤具有近端和远端,每个远端具有二向色反射器,反射出与测试光源相对应的波长,并且可透射到其它波长。 要测试哪种纤维的选择只是操纵具有将偏振角旋转90度的能力的旋转元件的问题。 光的偏振决定了要测试的各个光纤。

    FAST SPIN ECHO MRI METHOD COMPATIBLE WITH CPMG VIOLATION
    5.
    发明申请
    FAST SPIN ECHO MRI METHOD COMPATIBLE WITH CPMG VIOLATION 有权
    快速旋转ECHO MRI方法兼容CPMG暴露

    公开(公告)号:US20080009701A1

    公开(公告)日:2008-01-10

    申请号:US11420224

    申请日:2006-05-25

    IPC分类号: A61B5/05

    摘要: In preferred embodiments, a fast spin echo imaging technique is provided that is insensitive to violations of the Carr Purcell Meiboom Gill (CPMG) condition. Diffusion gradients disrupt the CPMG condition, and, hence, the present fast spin echo method is compatible with diffusion measurements and diffusion weighted imaging. The preferred embodiments of the present technique involve splitting of spin echoes into echo pairs. Spin echoes are split by adjustment (in magnitude or duration) of an initial readout gradient pulse. A train of echo pairs is captured. A first image is constructed using the first echoes of each pair. Also, a second image is constructed using the second echoes of each pair. Hybrid radial Cartesian methods are used for constructing the first and second images. The first and second images are constructed independently of one another. Independent image construction renders the method insensitive to violation of the CPMG condition. Finally, the two images are combined to form a final image.

    摘要翻译: 在优选实施例中,提供了对违反Carr Purcell Meiboom Gill(CPMG)条件不敏感的快速自旋回波成像技术。 扩散梯度破坏CPMG条件,因此,本发明的快速自旋回波方法与扩散测量和扩散加权成像兼容。 本技术的优选实施例涉及将自旋回波分解为回波对。 旋转回波通过初始读数梯度脉冲的调整(幅度或持续时间)分割。 一串回波对被捕获。 使用每对的第一个回波构建第一个图像。 此外,使用每对的第二回波来构建第二图像。 混合径向笛卡尔方法用于构建第一和第二图像。 第一和第二图像彼此独立构建。 独立的图像构造使得方法对违反CPMG条件不敏感。 最后,将两张图像合并形成最终图像。

    Correction for field variation in steady-state MRI by repeated
acquisition of zero k-space line
    9.
    发明授权
    Correction for field variation in steady-state MRI by repeated acquisition of zero k-space line 失效
    通过重复采集零k空间线来校正稳态MRI中的场变化

    公开(公告)号:US5652514A

    公开(公告)日:1997-07-29

    申请号:US621240

    申请日:1996-03-25

    CPC分类号: G01R33/56563

    摘要: Methods and apparatus for correcting image artefacts caused by variations in the main magnetic field of an MRI system are disclosed, particularly for MRI with steady-state spin precession. For field correction in MRI with steady-state spin precession, the effects of the field changes can be corrected by quantifying the time course of the field drifts by repeated acquisition of the zero k-space lines. The change in the phase between consecutive zero k-space lines is used as an indicator of field variation and for correction of associated image artifacts. By using for field correction the zero k-space lines acquired using the imaging sequence itself, the steady-states of spin precession are undisturbed throughout the MRI data acquisition.

    摘要翻译: 公开了用于校正由MRI系统的主磁场的变化引起的图像伪像的方法和装置,特别是对于具有稳态旋转进动的MRI。 对于具有稳态自旋进动的MRI中的场校正,可以通过重复采集零k空间线来量化场漂移的时间过程来校正场变化的影响。 使用连续零k空间线之间的相位变化作为场变化的指示符和用于校正相关联的图像伪像。 通过使用场校正,使用成像序列本身获取的零k空间线,自旋进动的稳态在整个MRI数据采集期间不受干扰。

    Sealing apparatus
    10.
    发明授权
    Sealing apparatus 失效
    密封装置

    公开(公告)号:US5277741A

    公开(公告)日:1994-01-11

    申请号:US926239

    申请日:1992-08-06

    申请人: David M. Kramer

    发明人: David M. Kramer

    IPC分类号: B31B1/84 B65D77/22 B65C9/36

    摘要: A sealing apparatus for applying seals, such as valves, over a pressure relief passage of a container. Displaceable retention members, positioned next to a platen having an applicator surface, releasably secure one or more seals adjacent the applicator surface prior to attachment to the container. A seal attachment element moves the applicator surface toward and into a seal attachment position adjacent the container. As the applicator surface moves, the displaceable retention members release to, in turn, effectuate attachment of the seals over the pressure relief passage. A retraction element operatively attached to the platen causes return movement of the applicator surface and, in turn, return of the displaceable retention members back into a seal retaining position.

    摘要翻译: 一种用于在容器的压力释放通道上施加诸如阀之类的密封件的密封装置。 位于具有施用器表面的压板旁边的可移动保持构件在附接到容器之前可释放地固定邻近施用器表面的一个或多个密封件。 密封附接元件将施加器表面朝向和邻近容器的密封件附接位置移动。 当施加器表面移动时,可移动的保持构件释放,从而实现密封件在压力释放通道上的附接。 可操作地附接到压盘的回缩元件引起涂抹器表面的返回运动,并且使可移动的保持构件返回到密封保持位置。