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    Integrated radio frequency filters for multiband transceivers
    1.
    发明申请
    Integrated radio frequency filters for multiband transceivers 有权
    用于多频段收发器的集成射频滤波器

    公开(公告)号：US20060063493A1

    公开(公告)日：2006-03-23

    申请号：US11041548

    申请日：2005-01-24

    申请人： Naveen Yanduru ,  Gregory Howard ,  Danielle Griffith ,  Srinivasan Venkatraman

    发明人： Naveen Yanduru ,  Gregory Howard ,  Danielle Griffith ,  Srinivasan Venkatraman

    IPC分类号： H04B1/40

    CPC分类号： H04B1/0078 ,  H03H7/38 ,  H03H2007/386 ,  H03H2250/00 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/006

    摘要： A system and method integrates signal filters in a multiband transceiver. A preferred embodiment comprises an amplifier with a first tunable capacitor coupled to a signal input and a tunable filter. The tunable filter comprises an input stage with a first pair of inductors arranged in a dipole configuration and a second tunable capacitor coupled in parallel to the first pair of inductors and an output stage inductively coupled to the input stage, the output stage includes a second pair of inductors also arranged in a dipole configuration and a third tunable capacitor coupled in parallel to the second pair of inductors. The inductors are realized using bond wire or any other high Q material. The first tunable capacitor, the second tunable capacitor, and the third tunable capacitor can be tuned using a master-slave tuning configuration to adjust the operating frequency of the amplifier and the tunable filter to enable frequency band compatibility with multiple communications protocols.

    摘要翻译： 系统和方法将信号滤波器集成在多频带收发器中。 优选实施例包括具有耦合到信号输入端和可调滤波器的第一可调谐电容器的放大器。 可调谐滤波器包括具有以偶极配置布置的第一对电感器和与第一对电感器并联耦合的第二可调谐电容器的输入级和感应耦合到输入级的输出级，输出级包括第二对 还配置有偶极配置的电感器和与第二对电感器并联耦合的第三可调谐电容器。 电感器使用接合线或任何其他高Q材料实现。 可以使用主从调谐配置来调整第一可调电容器，第二可调谐电容器和第三可调谐电容器，以调整放大器和可调谐滤波器的工作频率，以实现与多种通信协议的频带兼容性。

    Integrated radio frequency filters for multiband transceivers
    2.
    发明授权
    Integrated radio frequency filters for multiband transceivers 有权
    用于多频段收发器的集成射频滤波器

    公开(公告)号：US07680477B2

    公开(公告)日：2010-03-16

    申请号：US11041548

    申请日：2005-01-24

    申请人： Naveen Yanduru ,  Gregory Howard ,  Srinivasan Venkatraman ,  Danielle Griffith

    发明人： Naveen Yanduru ,  Gregory Howard ,  Srinivasan Venkatraman ,  Danielle Griffith

    IPC分类号： H04B1/16 ,  H04M1/00

    CPC分类号： H04B1/0078 ,  H03H7/38 ,  H03H2007/386 ,  H03H2250/00 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/006

    摘要： A system and method integrates signal filters in a multiband transceiver. A preferred embodiment comprises an amplifier with a first tunable capacitor coupled to a signal input and a tunable filter. The tunable filter comprises an input stage with a first pair of inductors arranged in a dipole configuration and a second tunable capacitor coupled in parallel to the first pair of inductors and an output stage inductively coupled to the input stage, the output stage includes a second pair of inductors also arranged in a dipole configuration and a third tunable capacitor coupled in parallel to the second pair of inductors. The inductors are realized using bond wire or any other high Q material. The first tunable capacitor, the second tunable capacitor, and the third tunable capacitor can be tuned using a master-slave tuning configuration to adjust the operating frequency of the amplifier and the tunable filter to enable frequency band compatibility with multiple communications protocols.

    摘要翻译： 系统和方法将信号滤波器集成在多频带收发器中。 优选实施例包括具有耦合到信号输入端和可调滤波器的第一可调谐电容器的放大器。 可调谐滤波器包括具有以偶极配置布置的第一对电感器和与第一对电感器并联耦合的第二可调电容器的输入级和感应耦合到输入级的输出级，输出级包括第二对 还配置有偶极配置的电感器和与第二对电感器并联耦合的第三可调谐电容器。 电感器使用接合线或任何其他高Q材料实现。 可以使用主从调谐配置来调整第一可调电容器，第二可调电容器和第三可调电容器，以调整放大器和可调滤波器的工作频率，以实现与多种通信协议的频带兼容性。

    Integrated Radio Frequency Filters For Multiband Transceivers
    4.
    发明申请
    Integrated Radio Frequency Filters For Multiband Transceivers 审中-公开
    用于多频段收发器的集成射频滤波器

    公开(公告)号：US20100048240A1

    公开(公告)日：2010-02-25

    申请号：US12613402

    申请日：2009-11-05

    申请人： Naveen Krishna Yanduru ,  Gregory Eric Howard ,  Danielle Griffith ,  Srinivasan Venkatraman

    发明人： Naveen Krishna Yanduru ,  Gregory Eric Howard ,  Danielle Griffith ,  Srinivasan Venkatraman

    IPC分类号： H04M1/00 ,  H04B1/40

    CPC分类号： H04B1/0078 ,  H03H7/38 ,  H03H2007/386 ,  H03H2250/00 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/006

    摘要： A system and method integrates signal filters in a multiband transceiver. A preferred embodiment comprises an amplifier with a first tunable capacitor coupled to a signal input and a tunable filter. The tunable filter comprises an input stage with a first pair of inductors arranged in a dipole configuration and a second tunable capacitor coupled in parallel to the first pair of inductors and an output stage inductively coupled to the input stage, the output stage includes a second pair of inductors also arranged in a dipole configuration and a third tunable capacitor coupled in parallel to the second pair of inductors. The inductors are realized using bond wire or any other high Q material. The first tunable capacitor, the second tunable capacitor, and the third tunable capacitor can be tuned using a master-slave tuning configuration to adjust the operating frequency of the amplifier and the tunable filter to enable frequency band compatibility with multiple communications protocols.

    摘要翻译： 系统和方法将信号滤波器集成在多频带收发器中。 优选实施例包括具有耦合到信号输入端和可调滤波器的第一可调谐电容器的放大器。 可调谐滤波器包括具有以偶极配置布置的第一对电感器和与第一对电感器并联耦合的第二可调谐电容器的输入级和感应耦合到输入级的输出级，输出级包括第二对 还配置有偶极配置的电感器和与第二对电感器并联耦合的第三可调谐电容器。 电感器使用接合线或任何其他高Q材料实现。 可以使用主从调谐配置来调整第一可调电容器，第二可调电容器和第三可调电容器，以调整放大器和可调滤波器的工作频率，以实现与多种通信协议的频带兼容性。

    Mobile Video Delivery
    5.
    发明申请
    Mobile Video Delivery 有权
    移动视频传送

    公开(公告)号：US20130212630A1

    公开(公告)日：2013-08-15

    申请号：US13372400

    申请日：2012-02-13

    申请人： Srinivasan Venkatraman ,  Anand Krishnamurthy ,  Jae Chung ,  Paul Sherer ,  Deepak Garg

    发明人： Srinivasan Venkatraman ,  Anand Krishnamurthy ,  Jae Chung ,  Paul Sherer ,  Deepak Garg

    IPC分类号： H04N7/16

    CPC分类号： H04L1/0014 ,  H04L65/4069 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/44004 ,  H04N21/44209 ,  H04N21/8456

    摘要： Methods and apparatus, including computer program products, for mobile video delivery. A method includes, in a mobile network comprising at least a core element and one or more evolved Node Bs (eNBs), receiving a request to initiate a progressive download of a video object, splitting the requested video object into self-contained independent video segments, transrating each of the self-contained independent video segments for different rates, and delivering a segment from a rate bucket that matches a current network condition determined by bandwidth estimation.

    摘要翻译： 方法和设备，包括计算机程序产品，用于移动视频传送。 一种方法包括在包括至少一个核心元件和一个或多个演进的节点B（eNB）的移动网络中，接收发起视频对象的逐行下载的请求，将所请求的视频对象分解为独立的独立视频段 ，以不同速率转换每个独立的独立视频段，并且从与由带宽估计确定的当前网络条件匹配的速率桶中传送段。

    DISTRIBUTED CONTENT MANAGEMENT WIRELESS NETWORK ARCHITECTURE
    6.
    发明申请
    DISTRIBUTED CONTENT MANAGEMENT WIRELESS NETWORK ARCHITECTURE 审中-公开
    分布式内容管理无线网络架构

    公开(公告)号：US20130136056A1

    公开(公告)日：2013-05-30

    申请号：US13307362

    申请日：2011-11-30

    申请人： Srinivasan Venkatraman ,  Anand Krishnamurthy ,  Deepak Garg

    发明人： Srinivasan Venkatraman ,  Anand Krishnamurthy ,  Deepak Garg

    IPC分类号： H04W16/00

    CPC分类号： H04W88/16

    摘要： A mobile network includes a metro ethernet ring including SPGW-X servers, each of the SPGW-X servers including a processor, a memory, function modules and a Gi interface, the function modules including a Serving Gateway (SGW) module, PDN Gateway (PGW) data plane module, transport layer services module, content management module and application layer services module, a PGW-Y server, the PRW-Y server including a processor, a memory and function modules, the function modules include a PGW control plane module, PGW data plane module, centralized services module and a Gi interface, and a mobility management entity (MME), an ISP/private network linked to the Gi interfaces of the plurality of SPGW-X servers, and a centralized Packet Data Network (PDN) and a central IP backbone linked to the Gi interface of the PGW-Y server.

    摘要翻译： 移动网络包括包括SPGW-X服务器的城域以太网环，每个SPGW-X服务器包括处理器，存储器，功能模块和Gi接口，功能模块包括服务网关（SGW）模块，PDN网关 PGW）数据平面模块，传输层服务模块，内容管理模块和应用层服务模块，PGW-Y服务器，PRW-Y服务器包括处理器，存储器和功能模块，功能模块包括PGW控制平面模块 ，PGW数据平面模块，集中式业务模块和Gi接口，以及移动性管理实体（MME），与多个SPGW-X服务器的Gi接口链接的ISP /专用网络以及集中式分组数据网络 ）和链接到PGW-Y服务器的Gi接口的中央IP骨干网。

    System and method for correcting an inaccurate clock
    7.
    发明申请
    System and method for correcting an inaccurate clock 有权
    用于校正不准确时钟的系统和方法

    公开(公告)号：US20060195281A1

    公开(公告)日：2006-08-31

    申请号：US11066375

    申请日：2005-02-25

    申请人： Sudhind Dhamankar ,  Srinivasan Venkatraman

    发明人： Sudhind Dhamankar ,  Srinivasan Venkatraman

    IPC分类号： G06F19/00

    CPC分类号： G06F1/14

    摘要： System and method for correcting an inaccurate clock with the use of an accurate reference clock. A preferred embodiment comprises repeatedly counting clock cycles in a clock signal generated by the inaccurate clock for a specified period of time, after the completion of each specified period of time, computing a delta value based on the clock cycle counts of the clock signal of the inaccurate clock, accumulating a delta sum value, and computing a clock adjustment value for the inaccurate clock based upon the delta sum value. The reference clock is used to mark the end of each specified period of time.

    摘要翻译： 使用精确的参考时钟校正不准确时钟的系统和方法。 优选实施例包括：在每个指定时间段完成之后，在由指定时间段产生的时钟信号中产生的时钟信号中的时钟周期重复计数，基于时钟信号的时钟周期计数计算增量值 累加Δ和值，以及基于Δ和值计算不准确时钟的时钟调整值。 参考时钟用于标记每个指定时间段的结束。

    Filter circuits based on trans-conductor circuits
    8.
    发明授权
    Filter circuits based on trans-conductor circuits 有权
    基于反导体电路的滤波电路

    公开(公告)号：US06700445B2

    公开(公告)日：2004-03-02

    申请号：US10126509

    申请日：2002-04-22

    申请人： Srinivasan Venkatraman ,  Abhijit Kumar Das

    发明人： Srinivasan Venkatraman ,  Abhijit Kumar Das

    IPC分类号： H03F3191

    CPC分类号： H03F3/45659 ,  H03F3/45179 ,  H03F2200/294

    摘要： A filter circuit uses a trans-conductor circuit coupled to a control circuit having similar characteristics as the trans-conductor circuit. The control circuit is used to set and/or control the quiescent voltage of the trans-conductor circuit. As a result, the trans-conductor circuit may be designed to operate across a large frequency range while consuming minimal power. The control circuit may be operated using direct current (dc) voltage and may be implemented similar to the trans-conductor circuit implemented in the filter circuit.

    摘要翻译： 滤波器电路使用与具有与跨导体电路类似的特性的控制电路耦合的跨导体电路。 控制电路用于设置和/或控制跨导体电路的静态电压。 结果，跨导体电路可以设计成在大的频率范围内工作，同时消耗最小的功率。 控制电路可以使用直流（dc）电压操作，并且可以类似于在滤波器电路中实现的跨导体电路来实现。

    Circuitry and method for providing boost and asymmetry in a continuous-time filter
    9.
    发明授权
    Circuitry and method for providing boost and asymmetry in a continuous-time filter 失效
    在连续时间滤波器中提供升压和不对称的电路和方法

    公开(公告)号：US6069522A

    公开(公告)日：2000-05-30

    申请号：US16907

    申请日：1998-02-02

    申请人： Srinivasan Venkatraman ,  Richard C. Pierson

    发明人： Srinivasan Venkatraman ,  Richard C. Pierson

    IPC分类号： H03F3/45 ,  H03H11/04 ,  H03H11/12 ,  H03K5/24 ,  H03K5/00

    CPC分类号： H03F3/4508 ,  H03F3/45183 ,  H03F3/45511 ,  H03H11/0444 ,  H03H11/0472 ,  H03F2203/45631 ,  H03F2203/45648 ,  H03K5/2418

    摘要： A capacitor current sensing circuitry (100) for sensing the current through a bandpass capacitor (20) of a first biquad stage (80) and generating an output current in response. The capacitor current sensing circuitry (100) includes a differential input circuit comprising a transistor (123) and a transistor (124), a fixed current source (130), a variable current source (120), a variable current, source (122), an input current sink (126), a differential output circuit comprising a transistor (132) and a transistor (134), and a programmable output current sink (138). The differential input circuit receives an input sense voltage and generates a first input current, a second input current, a first output voltage, and a second output voltage in response. The fixed current source (130) generates a current that is used to provide a first current component to the first input current and a first current component to the second input current. The variable current source (120) and the variable current source (122) generate a second component of the first input current and the second input current, respectively. The input current sink (126) receives the first input current and the second input current. The transistor (132) receives the first output voltage and generates a first output current in response, while the transistor (134) receives the second output voltage and generates a second output current in response. The programmable output current sink (138) receives the first output current and the second output current.

    摘要翻译： 一种电容器电流感测电路（100），用于感测通过第一双二阶段（80）的带通电容器（20）的电流并且响应地产生输出电流。 电容器电流感测电路（100）包括差分输入电路，其包括晶体管（123）和晶体管（124），固定电流源（130），可变电流源（120），可变电流源（122） ，输入电流吸收器（126），包括晶体管（132）和晶体管（134）的差分输出电路以及可编程输出电流吸收器（138）。 差分输入电路接收输入检测电压，并响应地产生第一输入电流，第二输入电流，第一输出电压和第二输出电压。 固定电流源（130）产生用于向第一输入电流提供第一电流分量的电流和产生到第二输入电流的第一电流分量。 可变电流源（120）和可变电流源（122）分别产生第一输入电流和第二输入电流的第二分量。 输入电流吸收器（126）接收第一输入电流和第二输入电流。 当晶体管（134）接收第二输出电压并响应产生第二输出电流时，晶体管（132）接收第一输出电压并产生第一输出电流。 可编程输出电流吸收器（138）接收第一输出电流和第二输出电流。