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    Ultra low-power transmission system
    1.
    发明申请
    Ultra low-power transmission system 审中-公开
    超低功率传输系统

    公开(公告)号：US20090238308A1

    公开(公告)日：2009-09-24

    申请号：US12077601

    申请日：2008-03-19

    申请人： Douglas B. Weiner ,  Richard C. Eden

    发明人： Douglas B. Weiner ,  Richard C. Eden

    IPC分类号： H03D3/00 ,  H04L27/14

    CPC分类号： H03D3/007 ,  H04L27/144

    摘要： An ultra low-power transmission system for use with a battery-operated device. The ultra-low power transmission system comprises an encoded transmitter and an addressable ultra -low power receiver. The ultra low-power receiver comprises an RF front-end block for receiving and demodulating an incoming RF signal. The RF front-end block includes an amplifier for amplifying the received RF signal and a frequency discriminator for demodulating the amplified RF signal to produce a baseband signal. The amplifier and the frequency discriminator are each comprised of enhancement mode, high-mobility electron transistors (E-HEMTs). The ultra low-power further receiver comprises a correlator for receiving the baseband signal from the frequency discriminator and detecting a codeword therein. The correlator comprises a plurality of switched capacitors for storing samples of the baseband signal. The correlator is operable to couple the plurality of switched capacitors in order to integrate the samples stored thereon.

    摘要翻译： 一种用于电池供电装置的超低功率传输系统。 超低功率传输系统包括编码发射机和可寻址超低功率接收机。 超低功率接收机包括用于接收和解调输入RF信号的RF前端块。 RF前端块包括用于放大接收的RF信号的放大器和用于解调放大的RF信号以产生基带信号的鉴频器。 放大器和鉴频器各自由增强模式，高迁移率电子晶体管（E-HEMT）组成。 超低功率进一步的接收机包括用于从频率鉴别器接收基带信号并检测其中的码字的相关器。 相关器包括用于存储基带信号的采样的多个开关电容器。 相关器可操作以耦合多个开关电容器，以便集成存储在其上的样本。

    Common control channel dynamic frequency assignment method and protocol
    2.
    发明授权
    Common control channel dynamic frequency assignment method and protocol 有权
    公共控制信道动态频率分配方法和协议

    公开(公告)号：US06404751B1

    公开(公告)日：2002-06-11

    申请号：US09153312

    申请日：1998-09-15

    申请人： Charles W. Roark ,  Douglas B. Weiner ,  Andrew Cilia ,  Mitchel B. Stiles

    发明人： Charles W. Roark ,  Douglas B. Weiner ,  Andrew Cilia ,  Mitchel B. Stiles

    IPC分类号： H04Q700

    CPC分类号： H04W72/14 ,  H04W24/00 ,  H04W48/08 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0833 ,  H04W84/14

    摘要： A method and protocol for dynamic downstream and upstream frequency assignment in a localized microwave distribution system. Downstream frequencies can be assigned via a base station periodic broadcast of a frequency assignment table for a home common control channel in each base station downstream frequency. Customer premise equipment monitors the home common control channel for a frequency assignment message, which preferably includes a table mapping each customer premise equipment, or that equipment for which there has been no recent upstream communication. Downstream frequencies may also be assigned by a customer premise equipment request to a base station sent over a common control channel associated with an upstream frequency associated with a downstream frequency identified during a scan of downstream frequencies. A modified aloha contention algorithm is used if multiple customer premise equipment requests conflict. Upstream frequency and time slot requests are done in similar fashion, with a customer premise equipment sending a request over either common control channel of a currently assigned upstream frequency or a common control channel associated with a downstream frequency with which the customer premise equipment is associated.

    摘要翻译： 一种用于局部微波分布系统中动态下行和上行频率分配的方法和协议。 下行频率可以通过基站周期性广播来分配，每个基站在每个基站下行频率中用于归属公共控制信道的频率指配表。 客户驻地设备监视用于频率分配消息的家庭公共控制信道，其优选地包括映射每个客户驻地设备的表格，或者没有最近的上游通信的设备。 下行频率也可以由客户驻地设备请求分配给通过与在下行频率的扫描期间识别的下游频率相关联的上行频率相关联的公共控制信道发送的基站。 如果多个客户端设备请求冲突，则使用修改的aloha争用算法。 以类似的方式完成上行频率和时隙请求，客户驻地设备通过与当前分配的上行频率的公共控制信道或与客户驻地设备相关联的下行频率相关联的公共控制信道发送请求。

    Common control channel dynamic frequency assignment method and protocol
    3.
    发明授权
    Common control channel dynamic frequency assignment method and protocol 有权

    公开(公告)号：US07006469B1

    公开(公告)日：2006-02-28

    申请号：US10112117

    申请日：2002-03-28

    申请人： Charles W. Roark ,  Douglas B. Weiner ,  Andrew Cilia ,  Mitchel B. Stiles

    发明人： Charles W. Roark ,  Douglas B. Weiner ,  Andrew Cilia ,  Mitchel B. Stiles

    IPC分类号： H04Q7/00

    CPC分类号： H04W72/14 ,  H04W24/00 ,  H04W48/08 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0833 ,  H04W84/14

    摘要： A method and protocol for dynamic downstream and upstream frequency assignment in a localized microwave distribution system. Downstream frequencies can be assigned via a base station periodic broadcast of a frequency assignment table for a home common control channel in each base station downstream frequency. Customer premise equipment monitors the home common control channel for a frequency assignment message, which preferably includes a table mapping each customer premise equipment, or that equipment for which there has been no recent upstream communication. Downstream frequencies may also be assigned by a customer premise equipment request to a base station sent over a common control channel associated with an upstream frequency associated with a downstream frequency identified during a scan of downstream frequencies. A modified aloha contention algorithm is used if multiple customer premise equipment requests conflict. Upstream frequency and time slot requests are done in similar fashion, with a customer premise equipment sending a request over either common control channel of a currently assigned upstream frequency or a common control channel associated with a downstream frequency with which the customer premise equipment is associated.

    System and method for relaying signals to base stations in a wireless communications system
    5.
    发明授权
    System and method for relaying signals to base stations in a wireless communications system 失效
    用于在无线通信系统中将信号中继到基站的系统和方法

    公开(公告)号：US06272351B1

    公开(公告)日：2001-08-07

    申请号：US08993182

    申请日：1997-12-18

    申请人： J. Leland Langston ,  Douglas B. Weiner ,  William K. Myers ,  James S. Marin

    发明人： J. Leland Langston ,  Douglas B. Weiner ,  William K. Myers ,  James S. Marin

    IPC分类号： H04B714

    CPC分类号： H04B7/2606 ,  H04W88/085

    摘要： A wireless communication system (100) is disclosed in which a central office (102) generates a signal. A first base station (104) receives the central office signal and transmits a first broadcast signal in a first frequency range in response to the central office signal. A second base station (124) receives the first broadcast signal and transmits a second broadcast signal in a second frequency range in response to the first broadcast signal. A third base station (134) receives the second broadcast signal and transmits a third broadcast signal in the first frequency range in response to the second broadcast signal. In accordance with the present invention, a plurality of base stations are each able to provide one-way or two-way communication to a plurality of customers (110, 130, 140), with only one base station (104) receiving signals directly from the central office (102).

    摘要翻译： 公开了一种无线通信系统（100），其中中心局（102）产生信号。 第一基站（104）响应于中心局信号，接收中心局信号并发送第一频率范围内的第一广播信号。 第二基站（124）响应于第一广播信号接收第一广播信号并在第二频率范围内发送第二广播信号。 第三基站（134）响应于第二广播信号接收第二广播信号并且在第一频率范围内发送第三广播信号。 根据本发明，多个基站各自能够向多个客户（110,130,140）提供单向或双向通信，只有一个基站（104）直接从 中央办公室（102）。

    Point-to-multipoint variable antenna compensation system
    6.
    发明授权
    Point-to-multipoint variable antenna compensation system 有权
    点对多点可变天线补偿系统

    公开(公告)号：US06216244B1

    公开(公告)日：2001-04-10

    申请号：US09167804

    申请日：1998-10-07

    申请人： William K. Myers ,  Douglas B. Weiner

    发明人： William K. Myers ,  Douglas B. Weiner

    IPC分类号： G06F1100

    CPC分类号： H04L1/0015 ,  H01Q3/26 ,  H04L1/0003 ,  H04L1/0009 ,  H04L2001/0092 ,  H04W16/24

    摘要： An antenna compensation system and method equalizes transmission link efficiency in sectors having unequal antenna or path gain while maintaining an equalized power spectral density. Areas of a sector having lower gains receive broadcasts with more robust coding to equalize their transmission link performance with areas of a sector having higher gains. The robustness of coding is controlled through setting of different forward error code rates, setting of different modulation types, or a combination of both. In analog systems it is controlled through variation of a signal-to-noise sensitive transmission parameter. Sectors may be divided azimuthally with areas at or near the boresight receiving less robust coding and areas nearer the sector edges receiving more robust coding. Similarly, sectors may be divided into radial areas with the more distant areas receiving more robust coding.

    摘要翻译： 天线补偿系统和方法在保持均衡的功率谱密度的同时，在具有不等天线或路径增益的扇区中均衡传输链路效率。 具有较低增益的扇区的区域以较强的编码接收广播，以使其传输链路性能与具有较高增益的扇区的区域相等。 通过设置不同的前向错误码率，不同调制类型的设置或两者的组合来控制编码的鲁棒性。 在模拟系统中，它通过变化信噪比敏感的传输参数进行控制。 扇区可以方位角地与在视轴处或附近的区域分开，接收较不健壮的编码和更接近接收更强健编码的扇区边缘的区域。 类似地，扇区可以被划分成径向区域，其中较远的区域接收更强的编码。