Direct transmission garage door opener
    1.
    发明申请
    Direct transmission garage door opener 审中-公开
    直接变频车库门开启器

    公开(公告)号:US20060090861A1

    公开(公告)日:2006-05-04

    申请号:US11247089

    申请日:2005-10-12

    Applicant: Jay Wu

    Inventor: Jay Wu

    Abstract: An Improved garage door opener wherein a motor is coupled to the drive shaft of the door at upper side with gear attached to the drive shaft thereof to operate the garage door and a clutch mechanism is provided to move the gear from engaging location to allow the door to be manually opened or closed. This invention results in a quieter environment both in garage and in the room above garage and a substantial simplification over current garage door openers which require a rail and trolley mechanism for opening and closing the door. No extra space required for this opener.

    Abstract translation: 一种改进的车库门开启器,其中电动机在上侧与门的驱动轴连接,齿轮连接到其驱动轴以操作车库门,并且提供离合器机构以使齿轮从接合位置移动以允许门 手动打开或关闭。 本发明导致在车库和车库上方的房间中更安静的环境,并且大大简化了当前的车库门开启器,其需要用于打开和关闭门的导轨和推车机构。 这个开瓶器不需要额外的空间。

    Scatter correction device for radiative tomographic scanner
    2.
    发明申请
    Scatter correction device for radiative tomographic scanner 失效
    辐射断层扫描仪的散射校正装置

    公开(公告)号:US20050072929A1

    公开(公告)日:2005-04-07

    申请号:US10681774

    申请日:2003-10-07

    CPC classification number: G01T1/1648 G01T1/2985

    Abstract: A scatter correction device for radiative tomographic scanners is disclosed. The device comprises at least one steady support component and multiple beam stoppers made of high Z materials such as lead and wolfram. Each beam stopper has two ends fixed on the steady support component respectively. Theses beam stoppers can thus be sustained at fixed locations by the steady support component. During scanning an object, the device is placed between the object and detectors. But when the scatter correction device is applied to a CT scanner, the device is placed between object and radiation source. It attenuates part of the primary radiation with very small affects on the scattered radiation.

    Abstract translation: 公开了一种用于辐射断层扫描仪的散射校正装置。 该装置包括至少一个稳定的支撑部件和由诸如铅和钨的高Z材料制成的多个光束挡块。 每个梁止动器分别固定在稳定支撑部件上的两端。 因此,这些束塞可以由稳定的支撑部件维持在固定位置。 在扫描对象期间,将设备放置在对象和检测器之间。 但是,当将分散校正装置应用于CT扫描器时,该装置被放置在物体和辐射源之间。 它会对散射辐射影响很小的一部分辐射进行衰减。

    Scatter correction device for radiative tomographic scanner

    公开(公告)号:US06921902B2

    公开(公告)日:2005-07-26

    申请号:US10681774

    申请日:2003-10-07

    CPC classification number: G01T1/1648 G01T1/2985

    Abstract: A scatter correction device for radiative tomographic scanners is disclosed. The device comprises at least one steady support component and multiple beam stoppers made of high Z materials such as lead and wolfram. Each beam stopper has two ends fixed on the steady support component respectively. Theses beam stoppers can thus be sustained at fixed locations by the steady support component. During scanning an object, the device is placed between the object and detectors. But when the scatter correction device is applied to a CT scanner, the device is placed between object and radiation source. It attenuates part of the primary radiation with very small affects on the scattered radiation.

    Tunable photonic band gap structures for microwave signals
    4.
    发明申请
    Tunable photonic band gap structures for microwave signals 有权
    微波信号的可调光子带隙结构

    公开(公告)号:US20050046523A1

    公开(公告)日:2005-03-03

    申请号:US10652460

    申请日:2003-09-02

    CPC classification number: H01P1/2039 H01P1/2005

    Abstract: Photonic Band Gap (PBG) structures are utilized in microwave components as filters to suppress unwanted signals because they have the ability to produce a bandstop effect at certain frequency range depending on the structural dimensions. The unique property of PBG structures is due to the periodic change of the dielectric permittivity so interferences are created with the traveling electromagnetic waves. Such periodic arrangement could exist either inside of the dielectric substrate or in the ground plane of a microstrip transmission line structure. This invention provides tunable or switchable planar PBG structures, which contains lattice pattern of periodic perforations inside of the ground plane. The tuning or switching of the bandstop characteristics is achieved by depositing a conducting island surrounded by a layer of controllable thin film with variable conductivities. The controllable thin film layer could be photoconductive or temperature sensitive that allows change in its conductivity to occur by means of light illumination or temperature variation. Instead of depositing the controllable thin film with variable conductivity, freestanding thin film such as MEMS structures can also be utilized as the medium between the conducting islands and the ground plane. According to this invention, bandstop characteristics of the planar PBG structure are switched off when the controllable thin film is conductive or the freestanding thin film is in contact with the conducting islands and the ground plane. Meanwhile the bandstop characteristics are switched on when the controllable thin film is resistive or the freestanding thin film is not in contact with the conducting islands. At the end, switching uniplanar-compact PBG (UC-PBG) structures with photoconductive or temperature sensitive material, which is deposited inside of the gaps located in the ground plane, is also described.

    Abstract translation: 光子带隙(PBG)结构用于微波部件作为滤波器以抑制不期望的信号,因为它们具有根据结构尺寸在特定频率范围产生带阻效应的能力。 PBG结构的独特性质是由于介电常数的周期性变化,因此随行进电磁波产生干扰。 这种周期性布置可以存在于电介质基板的内部或微带传输线结构的接地平面内。 本发明提供了可调谐或可切换的平面PBG结构,其包含接地平面内的周期性穿孔的格子图案。 通过沉积由具有可变电导率的可控薄膜层包围的导电岛来实现带阻特性的调谐或切换。 可控薄膜层可以是光导或温度敏感的,其允许通过光照或温度变化发生其导电性的变化。 代替沉积具有可变电导率的可控薄膜,也可以使用诸如MEMS结构的独立薄膜作为导电岛和接地平面之间的介质。 根据本发明,当可控薄膜导电或独立薄膜与导电岛和接地平面接触时,平面PBG结构的阻带特性被切断。 同时,当可控薄膜是电阻性的或独立的薄膜不与导电岛接触时,阻带特性被接通。 最后,还介绍了沉积在位于接地平面中的间隙内的光导或温敏材料的开关单面紧凑型PBG(UC-PBG)结构。

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