Subscriber frequency control system and method in point-to-multipoint RF
communication system
    1.
    发明授权
    Subscriber frequency control system and method in point-to-multipoint RF communication system 失效
    点对多点射频通信系统中的用户频率控制系统和方法

    公开(公告)号:US5794119A

    公开(公告)日:1998-08-11

    申请号:US599406

    申请日:1995-11-21

    摘要: A frequency control system and method for minimizing frequency drifts in subscriber terminals in a point-to-multipoint system is described enabling the use of low cost oscillators in the Subscriber terminals by measuring the frequency offset of the subscriber terminal's receiver to estimate its oscillator frequency drift which is then used to correct the subscriber terminal's transmitter frequency and also by feedback of a frequency correction from the base station to the subscriber.

    摘要翻译: 描述了用于使点对多点系统中的用户终端中的频率漂移最小化的频率控制系统和方法,其使得能够在订户终端中使用低成本振荡器,通过测量用户终端的接收机的频率偏移来估计其振荡器频率漂移 其然后用于校正用户终端的发射机频率,并且还通过从基站向用户的频率校正的反馈。

    Subscriber frequency control system and method in point-to-multipoint RF communication system
    2.
    发明授权
    Subscriber frequency control system and method in point-to-multipoint RF communication system 失效
    点对多点射频通信系统中的用户频率控制系统和方法

    公开(公告)号:US06240556B1

    公开(公告)日:2001-05-29

    申请号:US09089969

    申请日:1998-06-03

    IPC分类号: H04B140

    摘要: A point-to-multipoint star configured terrestrial radio communication system having at least one base station transmitting to and receiving RF communication signals from a plurality of associated subscriber stations in the 0.3-300 GigaHertz (GHz) range. The system includes means for reducing frequency uncertainty, drift or error of the RF transmissions from each of the subscriber stations to the base station. Each subscriber station has a low cost local reference oscillator, and the system incorporates a reference broadcast signal of high frequency precision from the base station and at each subscriber station there is means for measuring frequency error and compensating for frequency drift/error in the low-cost oscillator at the subscriber station. Moreover, the system can provide an estimate obtained from measuring each subscriber frequency drift or error in the base station and relaying the measured error to the corresponding subscriber station to compensate for that subscriber's transmitter's local oscillator be out of frequency.

    摘要翻译: 一种点对多点星形配置的地面无线电通信系统,其具有至少一个基站向0.3-300千兆赫兹(GHz)范围内的多个相关用户站发射和接收RF通信信号。 该系统包括用于减少从每个用户站到基站的RF传输的频率不确定性,漂移或错误的装置。 每个用户站具有低成本的本地参考振荡器,并且该系统包含来自基站的高频精度的参考广播信号,并且在每个用户站处具有用于测量频率误差并补偿低频精度的频率漂移/误差的装置, 用户站的成本振荡器。 此外,系统可以提供从测量基站中的每个用户频率漂移或误差获得的估计,并将测量的误差中继到相应的用户站,以补偿该用户的发射机的本地振荡器超出频率。

    Angular dependent pixels for trick view
    4.
    发明授权
    Angular dependent pixels for trick view 有权
    用于特技视图的角度依赖像素

    公开(公告)号:US08368727B2

    公开(公告)日:2013-02-05

    申请号:US12689059

    申请日:2010-01-18

    IPC分类号: G09G5/10

    摘要: A display device having a display panel for displaying an image by spatial light modulation includes a plurality of pixel groups, each pixel group including a first pixel having a first type of luminance against viewing angle response, and a second pixel having a second type of luminance against viewing angle response, wherein the first and second luminance against viewing angle responses are different from one another. The display device further includes a controller operatively coupled to each of the plurality of pixel groups, wherein the controller is configured to drive each of the plurality of pixel groups such that on average the plurality of pixel groups simultaneously provide a predetermined on-axis luminance and an predetermined off-axis luminance for a region of the image corresponding to each pixel group.

    摘要翻译: 具有用于通过空间光调制显示图像的显示面板的显示装置包括多个像素组,每个像素组包括具有针对视角响应的第一类型的亮度的第一像素和具有第二类型亮度的第二像素 相对于视角响应,其中第一和第二亮度对视角响应彼此不同。 所述显示装置还包括可操作地耦合到所述多个像素组中的每一个的控制器,其中所述控制器被配置为驱动所述多个像素组中的每一个,使得所述多个像素组平均同时提供预定的轴上亮度, 对应于每个像素组的图像的区域的预定离轴亮度。

    Dual drug delivery device
    5.
    发明授权
    Dual drug delivery device 有权
    双药输送装置

    公开(公告)号:US08323246B2

    公开(公告)日:2012-12-04

    申请号:US12810286

    申请日:2008-12-08

    IPC分类号: A61M37/00

    摘要: A liquid delivery apparatus for the intrathecal delivery of one or more medications to a patient is disclosed. The liquid delivery apparatus generally includes a liquid reservoir, a liquid metering unit fluidly connected to the liquid reservoir, and a catheter delivery tube fluidly connected to the liquid metering unit. Preferably, the liquid delivery apparatus includes two or more liquid reservoirs. In various embodiments, the liquid reservoir includes a deformable balloon and a compressive sleeve spring as a pressure source, the liquid metering unit is a piezoelectrically actuated microvalve, and/or diagnostic sensors are included in the apparatus. The disclosed apparatus are compact, volume-efficient, energy-efficient, capable of delivering accurate fluid volumes, and address problems associated with multi-medication therapies. Methods of operating the liquid delivery apparatus are also disclosed.

    摘要翻译: 公开了一种用于将鞘内递送一种或多种药物给患者的液体输送装置。 液体输送装置通常包括液体储存器,流体连接到液体储存器的液体计量单元和流体地连接到液体计量单元的导管输送管。 优选地,液体输送装置包括两个或更多个液体储存器。 在各种实施例中,液体储存器包括可变形气囊和作为压力源的压缩套筒弹簧,液体计量单元是压电致动的微型阀,和/或诊断传感器包括在该装置中。 所公开的装置是紧凑的,体积有效的,能量高效的,能够提供精确的流体体积,并解决与多药物疗法相关的问题。 还公开了操作液体输送装置的方法。

    Display including backlight operable in 2D and 3D modes
    7.
    发明授权
    Display including backlight operable in 2D and 3D modes 有权
    显示器包括可在2D和3D模式下操作的背光

    公开(公告)号:US07903183B2

    公开(公告)日:2011-03-08

    申请号:US10597088

    申请日:2005-01-14

    IPC分类号: G02F1/13357

    摘要: A display comprises a backlight (30, 45-48) and a spatial light modulator (1) such as a liquid crystal device for modulating light from the backlight (30, 45-48). The backlight has a light-output surface (45) with a first set of regions in the form of parallel evenly spaced strips (48). In a multiple-view mode of the display, these strips (48) emit light whereas the remainder of the output surface (45) is dark. In a single-view mode of operation of the display, the whole of the output surface (45) emits light substantially evenly across the display area of the modulator (1).

    摘要翻译: 显示器包括背光(30,45-48)和空间光调制器(1),例如用于调制来自背光(30,45-48)的光的液晶装置。 背光具有光输出表面(45),其具有平行均匀间隔的条带(48)形式的第一组区域。 在显示器的多视图模式中,这些条带(48)发光,而输出表面(45)的其余部分是黑色的。 在显示器的单视图操作模式中,整个输出表面(45)基本均匀地在调制器(1)的显示区域上发光。

    Light source system and an image projection system
    8.
    发明申请
    Light source system and an image projection system 审中-公开
    光源系统和图像投影系统

    公开(公告)号:US20070165186A1

    公开(公告)日:2007-07-19

    申请号:US11331592

    申请日:2006-01-13

    IPC分类号: G03B21/26

    CPC分类号: G03B21/26 H04N9/3117

    摘要: A light source system comprises a light source disposed within a non-imaging optical element. The non-imaging optical element does not produce a direct image of the light source, and the output light field at the output surface of the non-imaging optical element has an intensity that is substantially uniform over the area of the output surface. A light source system of the invention is therefore smaller and lighter than a prior art system of the same output power, since there is no need to provide further components, such as an integrator, to homogenise the output light field.

    摘要翻译: 光源系统包括设置在非成像光学元件内的光源。 非成像光学元件不产生光源的直接图像,并且非成像光学元件的输出表面处的输出光场具有在输出表面的区域上基本均匀的强度。 因此,本发明的光源系统比相同输出功率的现有技术系统更小和更轻,因为不需要提供诸如积分器的其它部件来均匀化输出光场。

    Feedback and coupling structures and methods
    9.
    发明申请
    Feedback and coupling structures and methods 审中-公开
    反馈和耦合结构和方法

    公开(公告)号:US20050104075A1

    公开(公告)日:2005-05-19

    申请号:US10918463

    申请日:2004-08-16

    申请人: Allan Evans Gene Koch

    发明人: Allan Evans Gene Koch

    摘要: A light emitting device may include a light emitting layer including an organic semiconductor material with a liquid crystalline structure, one or more feedback structures, and a coupling structure. The one or more feedback structures may cause light emitted by the light emitting layer to be fed back through it along an axis in the plane of the device, thereby promoting the stimulated emission of light in the light emitting layer. The coupling structure couples some fraction of the feedback light out of the device. The coupled light may be emitted along an axis substantially normal to the plane of the device or at predetermined angles. The coupling and feedback structures may have a corrugated structure, a continuous variation of refractive index along an axis in the device plane, a period refractive index, or any combination thereof. The coupling and feedback structures may be separate, share common portion or combined together.

    摘要翻译: 发光器件可以包括包括具有液晶结构的有机半导体材料,一个或多个反馈结构和耦合结构的发光层。 一个或多个反馈结构可以使得发光层发出的光沿着装置的平面中的轴线被反馈通过,由此促进受激发光的发光层中的光。 耦合结构将反馈光的一部分耦合到器件外。 耦合的光可以沿着基本上垂直于装置的平面的轴或者以预定角度发射。 耦合和反馈结构可以具有波纹结构,沿着器件平面中的轴的折射率的连续变化,周期折射率或其任何组合。 耦合和反馈结构可以是分开的,共享公共部分或组合在一起。

    Direct view LC display
    10.
    发明申请
    Direct view LC display 有权
    直接查看LC显示

    公开(公告)号:US20050063029A1

    公开(公告)日:2005-03-24

    申请号:US10913893

    申请日:2004-08-06

    CPC分类号: G02B27/2214 G02B5/32

    摘要: A display is provided having first and second direct view modes of operation. The display comprises a liquid crystal display panel and a backlight which is illuminated during the first mode so that the displayed image is visible throughout an extended viewing region in front of the device. The display also comprises a holographic element and a front light source, which is switched on for the second direct view mode. The holographic element redirects light from the front light source into part of the extended viewing region so that an image displayed by the device is visible in only a restricted portion of the viewing region.

    摘要翻译: 提供具有第一和第二直接操作模式的显示器。 显示器包括液晶显示面板和在第一模式期间被照亮的背光源,使得显示的图像在设备前面的整个观看区域可见。 该显示器还包括一个全息元件和一个前光源,它被接通用于第二直视模式。 全息元件将来自前光源的光重定向到扩展观看区域的一部分,使得由设备显示的图像仅在观看区域的受限部分中可见。