会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 51. 发明授权
    • Power amplifier predistortion methods and apparatus using envelope and phase detector
    • 功率放大器预失真方法和使用包络和相位检测器的装置
    • US08224266B2
    • 2012-07-17
    • US12203076
    • 2008-09-02
    • Dongtai LiuDali YangJames Anderson
    • Dongtai LiuDali YangJames Anderson
    • H04B1/04
    • H03F3/24H03F1/3241H03F1/3247H03F1/3282H03F1/3294H03F2200/102H03F2200/192H03F2200/204H03F2200/321H03F2200/336H03F2201/3233H04B2001/0425
    • An embodiment of the invention is a predistortion approach to linearize a power amplifier without frequency conversion of the RF signals by using envelope and phase detectors to detect the error to be corrected, and then one or more analog multiplier(s) and a DSP-based processor. For the analog embodiment, the inherent nature of the analog circuitries allows digital predistortion processing structured directly at the RF band, and enables a single power amplifier to support multi-modulation schemes, multi-carriers and multi-channels. As a result, the predistortion architecture is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems. The wireless system performance can be improved and upgraded just by using the new PA module rather than change or rebuild new subsystem in existing base station. The analog embodiment can also mix and match its analog multipliers with other analog components such as phase splitters, phase shifters, attenuators, filters, couplers, mixers, low-noise amplifiers, buffers, envelope detectors, and etc., to provide additional features.
    • 本发明的一个实施例是通过使用包络和相位检测器来检测待校正的误差,然后一个或多个模拟乘法器和基于DSP的模拟乘法器来对功率放大器进行线性化而不对RF信号进行频率转换的预失真方法 处理器。 对于模拟实施例,模拟电路的固有特性允许直接在RF频带处构成的数字预失真处理,并且使单个功率放大器能够支持多调制方案,多载波和多信道。 因此,预失真架构特别适用于诸如基站,中继器和室内信号覆盖系统之类的无线传输系统。 无线系统性能可以通过使用新的PA模块来改进和升级,而不是改变或重建现有基站中的新子系统。 模拟实施例还可以将其模拟乘法器与诸如相位分离器,移相器,衰减器,滤波器,耦合器,混频器,低噪声放大器,缓冲器,包络检测器等的其它模拟组件混合并匹配,以提供附加特征。
    • 57. 发明授权
    • Medical devices having adherent polymeric layers with depth-dependent properties
    • 具有与深度相关性质的贴壁聚合物层的医疗装置
    • US07919137B2
    • 2011-04-05
    • US11983952
    • 2007-11-13
    • Derek SutermeisterJay RassatJames Anderson
    • Derek SutermeisterJay RassatJames Anderson
    • A61L33/00C08J7/18
    • A61L31/10A61L31/14Y10T428/31678
    • According to one aspect of the invention, a method of forming a medical device is provided, which includes: (a) contacting a substrate with a solution that contains (i) one or more types of polymers, (ii) a solvent that contains one or more types of solvent species, and (iii) one or more optional agents, for example, one or more therapeutic agents, among others; and (b) removing the solvent from the solution, thereby forming a polymeric layer on the substrate. The composition of the solution is changed over the course of forming the polymeric layer. In another aspect of the invention, a medical device is provided, which includes a substrate and a polymeric layer over the substrate. The polymeric layer contains a copolymer that contains differing first and second monomers. The lower surface of the polymeric layer contacting the substrate has a surface concentration of the first monomer relative to the second monomer that is higher than that of the upper surface of the polymeric layer opposite the substrate.
    • 根据本发明的一个方面,提供了一种形成医疗装置的方法,其包括:(a)使基底与含有(i)一种或多种聚合物的溶液接触,(ii)含有一种 或更多类型的溶剂物质,和(iii)一种或多种任选的试剂,例如一种或多种治疗剂等; 和(b)从溶液中除去溶剂,由此在基材上形成聚合物层。 在形成聚合物层的过程中改变溶液的组成。 在本发明的另一方面,提供了一种医疗装置,其包括衬底和在衬底上的聚合物层。 聚合物层含有含有不同的第一和第二单体的共聚物。 与基材接触的聚合物层的下表面具有相对于第二单体的第一单体的表面浓度高于与基材相对的聚合物层的上表面的表面浓度。
    • 58. 发明申请
    • Single Wire Stent Delivery System
    • 单线支架输送系统
    • US20100152830A1
    • 2010-06-17
    • US12615704
    • 2009-11-10
    • Jan WeberJames Anderson
    • Jan WeberJames Anderson
    • A61F2/84
    • A61F2/856A61F2/91A61F2/954A61F2/958A61M25/1002A61M2025/105
    • A stent delivery system for deployment at a bifurcated vessel includes a catheter and a balloon. The length of the balloon is defined by a proximal balloon region and a distal balloon region. The proximal balloon region is disposed about a first longitudinal axis and the distal balloon region is disposed about a second longitudinal axis. The balloon has an unexpanded state and an expanded state, and a bend along its length. The proximal balloon region intersects the distal balloon region at the bend. In both the unexpanded state and the expanded state, at least one of the first longitudinal axis and the second longitudinal axis define an oblique angle relative to the main vessel longitudinal axis.
    • 用于部署在分叉血管的支架输送系统包括导管和气囊。 球囊的长度由近端球囊区域和远端球囊区域限定。 近端球囊区域围绕第一纵向轴线设置,并且远端球囊区域围绕第二纵向轴线设置。 气球具有未膨胀的状态和膨胀的状态,并且沿其长度弯曲。 近端气囊区域在弯曲处与远端球囊区域相交。 在未膨胀状态和膨胀状态下,第一纵向轴线和第二纵向轴线中的至少一个限定相对于主容器纵向轴线的倾斜角度。
    • 60. 发明申请
    • PROCESS AND RELATED APPARATUS FOR FACILITATING AQUATIC PLANT GROWTH
    • 促进水生植物生长的过程和相关设备
    • US20080005961A1
    • 2008-01-10
    • US11858901
    • 2007-09-21
    • James Anderson
    • James Anderson
    • A01G23/02
    • A01G9/00
    • A process and apparatus for planting aquatic plants underwater on the bottom of estuaries in damaged areas and for encouraging plant growth in seabeds and banks. Aquatic plant shoots are transplanted by positioning shoots in a sediment container which is in turn placed in the targeted area. When the sediment container is placed, the sea grass shoots are held in position for an extended period of time to allow the sea grass shoots to take root. The sediment containers may be preformed or they may be formed just prior to their placement. A watercraft may be used to position the sediment containers with and without sea grass shoots over an area of the propeller scar. With the process and apparatus of this invention, sea grass plants can be cultivated. Further in accordance with another embodiment of this invention a container or other obstruction without plant is placed to impede water flow over the area being cultivated. When water flow is impeded natural plant growth is encouraged.
    • 用于在受损区域的河口底部水下种植水生植物的过程和装置,并鼓励海底和银行植物生长。 通过将沉淀物定位在沉淀物容器中并将其放置在目标区域中来移植水生植物芽。 放置沉积物后,海草长时间保持在适当位置,使海草扎根。 沉淀物容器可以预先形成,或者它们可以在其放置之前形成。 可以使用船只将含有和不具有海草芽的沉积物定位在螺旋桨疤痕的区域上。 利用本发明的方法和装置,可以栽培海草植物。 此外,根据本发明的另一个实施例,放置没有植物的容器或其他阻塞物以阻止水被流经被培养的区域。 当水流阻碍时,鼓励天然植物生长。