Radio receiver
    21.
    发明申请
    Radio receiver 有权
    无线电接收机

    公开(公告)号:US20060058001A1

    公开(公告)日:2006-03-16

    申请号:US11219575

    申请日:2005-09-02

    CPC classification number: H04B1/406 H04B1/30

    Abstract: A radio receiver is configurable to operate in both low-IF and zero-IF modes with maximum re-use of of analogue and digital circuitry between modes. The receiver comprises a quadrature down-converter (108,110,112,114) for generating in-phase (I) and quadrature (Q) signals at an intermediate frequency and a complex filter (516) for performing image rejection filtering. In the low-IF mode, one of the outputs (Q) of the filter (516) is terminated, the other (I) is digitised by a non-complex ADC (520), then the digital signal is filtered and decimated. Quadrature-related IF signals are then re-generated before down-conversion and demodulation. In the zero-IF mode, both outputs of the filter (516) are digitised and processed in parallel before demodulation. By enabling analogue-to-digital conversion and channel filtering to be performed at low-IF on non-complex signals, use of just two non-complex ADCs (120,1620) is possible, thereby avoiding duplication of circuitry and providing significant power savings.

    Abstract translation: 无线电接收器可配置为在低中频和零中频两种模式下工作,最多可在模式之间重复使用模拟和数字电路。 接收机包括用于产生中频的同相(I)和正交(Q)信号的正交下变频器(108,110,112,114)和用于执行镜像抑制滤波的复数滤波器(516)。

    Methods and compositions for treating and preventing infection using human interferon regulatory factor 3
    24.
    发明申请
    Methods and compositions for treating and preventing infection using human interferon regulatory factor 3 审中-公开
    使用人类干扰素调节因子3治疗和预防感染的方法和组合物

    公开(公告)号:US20050054033A9

    公开(公告)日:2005-03-10

    申请号:US09975253

    申请日:2001-10-12

    CPC classification number: C07K14/4702 A61K38/00 C07K14/47 C12N2799/027

    Abstract: The present invention relates to IRF3 polypeptides. In particular, isolated nucleic acid molecules are provided encoding human IRF3 protein. IRF3 polypeptides are also provided as are vectors, host cells and recombinant methods for producing the same. The invention further relates to screening methods of gene therapy using polynucleotides encoding IRF3 polypeptides, fragments or variants to treat, prevent or ameliorate infectious diseases.

    Abstract translation: 本发明涉及IRF3多肽。 特别地,提供编码人IRF3蛋白的分离的核酸分子。 还提供了IRF3多肽,载体,宿主细胞和用于制备它们的重组方法。 本发明还涉及使用编码IRF3多肽,片段或变体的多核苷酸来治疗,预防或改善感染性疾病的基因治疗的筛选方法。

    System and method for improving input return loss in RF amplifiers
    26.
    发明授权
    System and method for improving input return loss in RF amplifiers 有权
    改善射频放大器输入回波损耗的系统和方法

    公开(公告)号:US06522196B1

    公开(公告)日:2003-02-18

    申请号:US09931734

    申请日:2001-08-20

    CPC classification number: H03F3/602 H03F3/60 H03F2200/198

    Abstract: A system and method for improving the input return loss in RF amplifiers is disclosed. One embodiment of the present invention amplifies only one of the two output quadrature signals of 3 dB coupler in an amplifier module while substantially maintaining a constant impedance at the input to the 3 dB coupler. This removes one of the design constraints for designing the input network for an amplifier module thereby allowing for more flexible amplifier designs and ease of cascading amplifier modules. One embodiment of the present invention improves the input return loss of an RF amplifier pallet in a cascaded-stage power amplifier circuit for a television transmitter including a 3 dB coupler by replacing one of the two amplifiers connected to the output of the 3 dB coupler with an electrical circuit of substantially equivalent impedance to the input impedance of the non-replaced amplifier.

    Abstract translation: 公开了一种改善RF放大器输入回波损耗的系统和方法。 本发明的一个实施例在放大器模块中仅放大3dB耦合器的两个输出正交信号中的一个,同时在3dB耦合器的输入处基本保持恒定的阻抗。 这消除了设计用于放大器模块的输入网络的设计约束之一,从而允许更灵活的放大器设计和容易的级联放大器模块。 本发明的一个实施例通过将连接到3dB耦合器的输出的两个放大器中的一个放置在具有3dB耦合器的电视发射机的级联功率放大器电路中来改善RF放大器托盘的输入回波损耗, 与未替换的放大器的输入阻抗基本上相等的阻抗的电路。

    Apparatus for enhancing visual perception of selected objects in
recreational and sporting activities
    27.
    发明授权
    Apparatus for enhancing visual perception of selected objects in recreational and sporting activities 失效
    用于在娱乐和体育活动中增强所选对象的视觉感知的装置

    公开(公告)号:US5592245A

    公开(公告)日:1997-01-07

    申请号:US288449

    申请日:1994-08-10

    CPC classification number: G02B5/20 G02C7/104 A63B43/008

    Abstract: To enhance perception of a yellow tennis ball while playing or watching a tennis game, the game is viewed through an optical filter mounted between the participant or spectator and the ball. The optical filter has predetermined transmittance having a pronounced peak centered substantially around 500 to 600 nanometers that passes a high percentage of incident light reflected and fluoresced by the tennis ball, but passes a substantially lower percentage of light in the remaining portion of the visible spectrum.

    Abstract translation: 为了在玩或观看网球比赛时增强对黄色网球的感知,通过安装在参与者或观众与球之间的滤光器观看游戏。 光学滤光器具有预定的透射率,其具有以500至600纳米为中心的显着峰值,其通过网球反射和发射的高百分比的入射光,但在可见光谱的剩余部分中通过基本上较低百分比的光。

    Elastic warp knit fabric
    28.
    发明授权
    Elastic warp knit fabric 失效
    弹力针织面料

    公开(公告)号:UST962002I4

    公开(公告)日:1977-09-06

    申请号:US784455

    申请日:1977-04-04

    CPC classification number: D04B21/18

    Abstract: A Raschel warp knit structure of elastic (12) and non-elastic (10) yarns which produce a two-way stretch fabric. The new and unique feature of this invention is the stitch used to produce the fabric. The stitch consists of two groups of three chain stitches of non-elastic yarn into which is interlaced an elastic yarn. The elastic yarn traverses laterally in its path through the fabric to connect three adjacent wales.

    Chisel plow mount
    29.
    发明授权
    Chisel plow mount 失效
    凿子犁

    公开(公告)号:US4011916A

    公开(公告)日:1977-03-15

    申请号:US595020

    申请日:1975-07-11

    CPC classification number: A01B61/046

    Abstract: A spring tooth chisel plow has its upper shank secured within a channel retainer pivotally mounted adjacent the rear edge of the retainer to a mounting bracket secured to a tool bar. The shank of the chisel plow is held within the channel retainer by a transverse clamping bar positioned radially from the main pivot, the forward end of the shank being fixed to the channel retainer. The upper surface of the retainer normally abuts a complementary surface on the mounting bracket, which supports an upwardly extending compression spring assembly. A tension bolt pivotally connects the forward end of the retainer to the upper end of the compression spring assembly, whereby force exerted on the chisel point of the plow is resisted by the compression spring assembly.

    Abstract translation: 弹簧凿子犁将其上柄固定在通道保持器内,该保持器邻近保持器的后边缘枢转地安装到固定到工具杆上的安装支架。 凿子犁的柄通过从主枢轴径向定位的横向夹持杆保持在通道保持器内,柄的前端固定到通道保持器。 保持架的上表面通常邻接安装支架上的互补表面,支撑着向上延伸的压缩弹簧组件。 张紧螺栓将保持器的前端枢转地连接到压缩弹簧组件的上端,由此施加在犁刀的凿点上的力被压缩弹簧组件抵抗。

    Adjustable height soil conditioner with frame extending rearwardly from
cultivating implement
    30.
    发明授权
    Adjustable height soil conditioner with frame extending rearwardly from cultivating implement 失效
    可调节高度土壤调理器,框架从栽培工具向后延伸

    公开(公告)号:US3935906A

    公开(公告)日:1976-02-03

    申请号:US507749

    申请日:1974-09-20

    CPC classification number: A01B35/18 A01B35/28 A01B49/027

    Abstract: A soil conditioner for use in combination with a cultivating implement drawn behind a tractor to break up the soil and leave a prepared seedbed in a single operation. The conditioner is mounted to a framework extending rearwardly behind the cultivator. It comprises a set of reels each mounted to the framework for free rotation about a transverse axis. Two sets of axial blade members are provided about each reel. The blades are equiangularly spaced about the axis and are arranged so that each blade of one set is angularly spaced midway between adjacent blades of the other set. The first set of blades include ground-engaging edges spaced a first radius from the axis. The corresponding edges of the remaining set of blades are spaced a second radius from the axis that is less than the first radius. The different radii of the two sets of blades enable the conditioner to be towed through a field, with the freely-rotating blades breaking up clods of dirt left by the cultivator, without the blades becoming clogged with dirt. The conditioner also includes an adjustment structure for elevationally adjusting the blade edges relative to the cultivator. This adjustment structure includes adjustment brackets each connecting two portions of the soil conditioner frame. Each of these brackets is provided with a plurality of apertures. These apertures are selectively aligned with a set of corresponding apertures on one of the two portions of the soil conditioner frame. By placing bolts through the aligned apertures, the elevation of the blade edges is selectively adjusted.

    Abstract translation: 一种土壤调理剂,用于与拖拉机后面栽培的耕作机组合使用,以分解土壤,并在一次操作中留下准备的苗床。 调节器安装到在耕耘机后面向后延伸的框架上。 它包括一组卷轴,每个卷轴安装到框架上以围绕横向轴线自由旋转。 围绕每个卷轴设置两组轴向叶片构件。 叶片围绕轴线等角地间隔开并且被布置成使得一组中的每个叶片在另一组的相邻叶片之间的中间角度地间隔开。 第一组叶片包括与轴线间隔开第一半径的地面接合边缘。 剩下的一组叶片的相应边缘与小于第一半径的轴线隔开第二半径。 两组叶片的不同半径使得护发素能够通过田间被牵引,自由旋转的叶片分解耕作机残留的污垢块,而不会使叶片被灰尘堵塞。 调节器还包括用于相对于耕耘机垂直调节叶片边缘的调节结构。 该调整结构包括调节支架,每个调节支架连接土壤调节器框架的两个部分。 这些支架中的每一个设置有多个孔。 这些孔与土壤调节器框架的两个部分中的一个上的一组对应孔选择性地对准。 通过将螺栓放置在对准的孔中,选择性地调节叶片边缘的高度。

Patent Agency Ranking