Frequency translating repeater with low cost high performance local oscillator architecture
    1.
    发明申请
    Frequency translating repeater with low cost high performance local oscillator architecture 有权
    具有低成本高性能本地振荡器架构的频率转换中继器

    公开(公告)号:US20070032192A1

    公开(公告)日:2007-02-08

    申请号:US11546241

    申请日:2006-10-12

    IPC分类号: H04B7/14

    CPC分类号: H04B7/15528 H04B7/12

    摘要: A frequency translating repeater (120) for use in a time division duplex (TDD) radio protocol communications system includes local oscillator (LO) circuits (210, 310, and 410) to facilitate repeating by providing isolation, reduced phase noise, reduced pulling, and the like. Tunable LOs (441, 442) can be directly coupled to down-converters (413, 414) and up-converters (426, 427) for increased isolation, reduced phase noise, less stringent frequency accuracy, and a reduced potential for pulling.

    摘要翻译: 用于时分双工(TDD)无线电协议通信系统的频率转换中继器(120)包括本地振荡器(LO)电路(210,310和410),以便通过提供隔离,降低的相位噪声,减小的拉取, 等等。 可调谐LO(441,442)可以直接耦合到下变频器(413,414)和上变频器(426,427),以增加隔离度,降低相位噪声,降低频率精度,降低拉电位。

    Frequency translating repeater with low cost high performance local oscillator architecture
    2.
    发明申请
    Frequency translating repeater with low cost high performance local oscillator architecture 有权
    具有低成本高性能本地振荡器架构的频率转换中继器

    公开(公告)号:US20050282491A1

    公开(公告)日:2005-12-22

    申请号:US11143927

    申请日:2005-06-03

    CPC分类号: H04B7/15528 H04B7/12

    摘要: A frequency translating repeater (120) for use in a time division duplex (TDD) radio protocol communications system includes local oscillator (LO) circuits (210, 310, and 410) to facilitate repeating by providing isolation, reduced phase noise, reduced pulling, and the like. Tunable LOs (441, 442) can be directly coupled to down-converters (413, 414) and up-converters (426, 427) for increased isolation, reduced phase noise, less stringent frequency accuracy, and a reduced potential for pulling.

    摘要翻译: 用于时分双工(TDD)无线电协议通信系统的频率转换中继器(120)包括本地振荡器(LO)电路(210,310和410),以便通过提供隔离,降低的相位噪声,减小的拉取, 等等。 可调谐LO(441,442)可以直接耦合到下变频器(413,414)和上变频器(426,427),以增加隔离度,降低相位噪声,降低频率精度,降低拉电位。

    Low voltage bipolar amplifier
    3.
    发明授权
    Low voltage bipolar amplifier 失效
    低电压双极放大器

    公开(公告)号:US5436595A

    公开(公告)日:1995-07-25

    申请号:US283877

    申请日:1994-08-01

    IPC分类号: H03F1/30 H03F3/04

    CPC分类号: H03F1/302 H03F2200/366

    摘要: A bipolar transistor amplifier with improved base biasing is disclosed. In the bias circuit of the present invention, the bias current only varies with the log(log) of variations in .beta. of the NPN transistors, making the circuit particularly resistant to temperature and process induced variations in .beta.. A feedback loop also insures that the bias current will remain constant under normal operating conditions. In several embodiments of the present invention, the bias signal and the input signal are kept separate, reducing interference. The amplifier and bias circuit provides a large amount of voltage headroom even with low supply voltages.

    摘要翻译: 公开了具有改进的基极偏置的双极晶体管放大器。 在本发明的偏置电路中,偏置电流仅随着NPN晶体管的β的变化的log(log)而变化,使得电路特别耐温度和工艺引起的β变化。 反馈回路还确保在正常工作条件下偏置电流将保持恒定。 在本发明的几个实施例中,偏置信号和输入信号保持分开,从而减少干扰。 放大器和偏置电路即使在低电源电压下也能提供大量的电压余量。

    Frequency translating repeater with low cost high performance local oscillator architecture
    4.
    发明授权
    Frequency translating repeater with low cost high performance local oscillator architecture 有权
    具有低成本高性能本地振荡器架构的频率转换中继器

    公开(公告)号:US08095067B2

    公开(公告)日:2012-01-10

    申请号:US11546241

    申请日:2006-10-12

    IPC分类号: H04B7/15

    CPC分类号: H04B7/15528 H04B7/12

    摘要: A frequency translating repeater (120) for use in a time division duplex (TDD) radio protocol communications system includes local oscillator (LO) circuits (210, 310, and 410) to facilitate repeating by providing isolation, reduced phase noise, reduced pulling, and the like. Tunable LOs (441, 442) can be directly coupled to down-converters (413, 414) and up-converters (426, 427) for increased isolation, reduced phase noise, less stringent frequency accuracy, and a reduced potential for pulling.

    摘要翻译: 用于时分双工(TDD)无线电协议通信系统的频率转换中继器(120)包括本地振荡器(LO)电路(210,310和410),以便通过提供隔离,降低的相位噪声,减小的拉取, 等等。 可调谐LO(441,442)可以直接耦合到下变频器(413,414)和上变频器(426,427),以增加隔离度,降低相位噪声,降低频率精度,降低拉电位。

    System and method for dynamically determining reservation parameters in a wireless network
    5.
    发明申请
    System and method for dynamically determining reservation parameters in a wireless network 审中-公开
    用于在无线网络中动态确定预留参数的系统和方法

    公开(公告)号:US20050117541A1

    公开(公告)日:2005-06-02

    申请号:US10727346

    申请日:2003-12-02

    申请人: Kevin Negus

    发明人: Kevin Negus

    CPC分类号: H04W28/26 H04W84/12

    摘要: A wireless networking device that operates within a network protocol. The protocol supports the transmission of data by allowing a device to make a reservation for such transmission of data to one or more other wireless network devices. The wireless networking device has a dynamic reservation determination module. The module supplies a reservation parameter associated with a certain reservation amount in the wireless protocol. The dynamic reservation module can selectively change the reservation amount based on the results of prior transmissions.

    摘要翻译: 一种在网络协议内运行的无线网络设备。 该协议通过允许设备对一个或多个其他无线网络设备的数据传输进行预留来支持数据传输。 无线网络设备具有动态预约确定模块。 该模块提供与无线协议中的某个预留量相关联的预留参数。 动态预约模块可以基于先前传输的结果选择性地改变预约量。

    Prioritization scheme for CSMA/CA
    6.
    发明授权
    Prioritization scheme for CSMA/CA 失效
    CSMA / CA的优先方案

    公开(公告)号:US07085284B1

    公开(公告)日:2006-08-01

    申请号:US09706454

    申请日:2000-11-03

    申请人: Kevin Negus

    发明人: Kevin Negus

    IPC分类号: H04L12/43

    摘要: A channel access system is described in which a number of slots within a contention window are available for assignment to streaming data transmitters. The other slots are selected by the other transmitters according to a CSMA/CA transmit protocol.

    摘要翻译: 描述了一种信道接入系统,其中竞争窗口内的多个时隙可用于分配到流数据发射机。 其他时隙由其他发射机根据CSMA / CA传输协议选择。