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    • 4. 发明授权
    • Broadband service control network
    • 宽带业务控制网
    • US07334038B1
    • 2008-02-19
    • US09542602
    • 2000-04-04
    • James J. CrowDennis L. Parker
    • James J. CrowDennis L. Parker
    • G06F15/16
    • G06F9/5055
    • Services are provided in an architecture utilizing a framework of standardized interconnection mechanisms that allow for the dynamic addition of new services that meet rules for the distributed services network. Likewise, new agents may readily be added to the network. The network architecture is composed of agent software at the broadband subscriber endpoint in conversation with server software at the service provider location. Under the present architecture, certain minimum service functionality is provided to any subscriber by way of a registration service for new subscribers, a login service for existing subscribers, subscriber profile services, connection services and plug-in management services. Through this network, a subscriber can access these services as well as additional services that are dynamically added to the network.
    • 在使用标准化互连机制框架的架构中提供服务,允许动态添加满足分布式服务网络规则的新服务。 同样,新的代理可以容易地添加到网络中。 网络架构由宽带用户端点的代理软件组成,与服务提供商位置的服务器软件对话。 在现有架构下,通过新用户的注册服务,现有用户的登录服务,用户简档服务,连接服务和插件管理服务,向任何用户提供某些最低服务功能。 通过该网络,用户可以访问这些服务以及动态添加到网络的附加服务。
    • 8. 发明授权
    • Vessel enhancement filtering in magnetic resonance angiography
    • 磁共振血管造影术血管增强过滤
    • US5644646A
    • 1997-07-01
    • US286523
    • 1994-08-05
    • Yiping DuDennis L. Parker
    • Yiping DuDennis L. Parker
    • G06T5/00G06K9/00
    • G06T5/008G06T5/20G06T5/50G06T2200/04G06T2207/10088G06T2207/20056G06T2207/30101
    • An MRI system includes an MR cylinder, a radio frequency (RF) coil (or antenna), preliminary processing circuitry, and a computer processing system. The RF receiver produces an electrical signal to the preliminary processing circuitry representative of the sensed magnetic field. The preliminary processing circuitry provides a measurement data signal S (which is in the frequency domain) to the computer processing system, which includes a computer processor and a memory. The computer processor stores measurement data signal S as a data matrix M.sub.2 in a larger data matrix M.sub.3 that contains zero values in memory locations surrounding data matrix M.sub.2. This is referred to as zero-padding. The computer processor performs (zero-padded) Fourier transformation on data matrix M.sub.3 to produce an interpolated image data matrix I.sub.D. Interpolated image data matrix I.sub.D is processed through enhancement filtering to provide an enhanced image data matrix I.sub.E that has improved visibility of vessels. The filtering may be performed by a variety of filters including a max-min SD filter or a cross-section filter.
    • MRI系统包括MR气缸,射频(RF)线圈(或天线),初步处理电路和计算机处理系统。 RF接收机产生代表感测磁场的初步处理电路的电信号。 初步处理电路向包括计算机处理器和存储器的计算机处理系统提供测量数据信号S(其在频域中)。 计算机处理器将测量数据信号S作为数据矩阵M2存储在包含数据矩阵M2周围的存储单元中的零值的较大数据矩阵M3中。 这被称为零填充。 计算机处理器对数据矩阵M3执行(零填充)傅立叶变换以产生内插图像数据矩阵ID。 内插图像数据矩阵ID通过增强滤波处理,以提供增强的图像数据矩阵IE,其改善了容器的可视性。 滤波可以由各种滤波器执行,包括最大最小SD滤波器或截面滤波器。
    • 10. 发明授权
    • Linear phase microstrip radio frequency transmit coils
    • 线性相微带射频发射线圈
    • US09057767B2
    • 2015-06-16
    • US13465864
    • 2012-05-07
    • J. Rock HadleyDennis L. ParkerGlen R. Morrell
    • J. Rock HadleyDennis L. ParkerGlen R. Morrell
    • G01V3/00G01R33/345G01R33/34G01R33/3415
    • G01R33/3456G01R33/34G01R33/34076G01R33/3415
    • Systems, devices and methods provide an RF coil which produces a field having linear phase variation across an imaging volume. In one embodiment, a coil comprises multiple microstrip elements configured to have an increased effective electrical length. This increase in electrical length allows for a larger linear phase shifts over the length of the microstrip element which in turn increases linear phase variation capabilities. This may be accomplished by increasing the effective dielectric properties of the microstrip element. Increasing the effective dielectric may be accomplished by utilizing distributed capacitors along the length of a microstrip element (e.g. lumped element capacitors), by altering the materials used to fabricate the microstrip element, etc. Additionally, increasing the effective dielectric may be accomplished using a combination of these means. Embodiments may further enable linear phase variation along the imaging volume at high frequencies, such as frequencies utilized for 3 T and above MRI devices.
    • 系统,装置和方法提供RF线圈,其产生在成像体积上具有线性相位变化的场。 在一个实施例中,线圈包括配置成具有增加的有效电长度的多个微带元件。 电长度的这种增加允许在微带线元件的长度上产生较大的线性相移,这又增加了线性相位变化能力。 这可以通过增加微带元件的有效介电性能来实现。 通过改变用于制造微带线元件的材料等,通过利用沿着微带元件(例如集总元件电容器)的长度的分布式电容器来实现增加有效电介质。另外,增加有效电介质可以使用组合 的这些手段。 实施例还可以在诸如用于3T及以上MRI装置的频率的高频下沿成像体积进行线性相位变化。