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    • 1. 发明授权
    • Random access control channel gain control and time slot recovery for remote in-band translator in time division multiple access wireless system
    • 用于时分多址无线系统的远程带内转换器的随机存取控制信道增益控制和时隙恢复
    • US06487187B1
    • 2002-11-26
    • US09198808
    • 1998-11-24
    • Thomas R. SchmutzMichael A. KomaraRoger L. OvertonJeffrey W. SmithDavid D. CoonsJeffrey R. Nuckols
    • Thomas R. SchmutzMichael A. KomaraRoger L. OvertonJeffrey W. SmithDavid D. CoonsJeffrey R. Nuckols
    • H04B7212
    • H04B7/2656H04W16/26H04W52/325
    • In a conventional Time Division Multiple Access (TDMA) wireless system, the specified distance between a mobile unit and the base transceiver system (BTS) cannot exceed predetermined distances because of time slot synchronization constraints. Furthermore, the varying distances between mobile units and the BTS create timing differences in the random access control channel (RACCH) bursts in the initial uplink signal from the mobile stations. In this approach to extending TDMA system coverage, in-band translator components are located in the center of remote cells which would normally contain a base transceiver system. The in-band translators include a loop back circuit that permits a host BTS to measure the backhaul propagation time delay by sending test access signals between the host BTS and the distant in-band translators. After backhaul timing delay is compensated in the BTS, then the in-band translator uses downlink time slot recovery to synchronize slot-by-slot uplink diversity selection and automatic level control. Recovery of timing bursts on downlink from the BTS allows for determination of burst, frame, and multiframe timing for downlink and uplink in the in-band translator. Processing allows for pre-determination of which uplink time slots that the RAACH signal can appear from the mobile unit. This method allows for automatic level control during RAACH bursts in addition to normal uplink bursts.
    • 在传统的时分多址(TDMA)无线系统中,由于时隙同步约束,移动单元与基站收发器系统(BTS)之间的指定距离不能超过预定距离。 此外,移动单元和BTS之间的变化的距离在来自移动台的初始上行链路信号中在随机接入控制信道(RACCH)突发中产生定时差。 在这种扩展TDMA系统覆盖的方法中,带内转换器组件位于通常包含基站收发器系统的远程小区的中心。 带内转换器包括回送电路,其允许主机BTS通过在主机BTS和远端带内转换器之间发送测试接入信号来测量回程传播时间延迟。在BTS中补偿回程定时延迟后, 带内转换器使用下行链路时隙恢复来同步逐个时隙上行链路分集选择和自动电平控制。来自BTS的下行链路上的定时突发的恢复允许确定下行链路和上行链路的突发,帧和多帧定时 带内翻译器。 处理允许预先确定RAACH信号可以从移动单元出现哪些上行链路时隙。 该方法允许除了正常的上行链路突发之外的RAACH突发期间的自动电平控制。
    • 2. 发明授权
    • Method and apparatus employing delay elements in multiple diversity
paths of a wireless system repeater translator to allow for selective
diversity and automatic level control in a time-division multiple
access system
    • 在无线系统中继器转换器的多个分集路径中采用延迟元件的方法和装置,以允许时分多址系统中的选择性分集和自动电平控制
    • US06088570A
    • 2000-07-11
    • US198485
    • 1998-11-24
    • Michael A. KomaraThomas R. SchmutzJeffrey W. SmithStephen J. Foley
    • Michael A. KomaraThomas R. SchmutzJeffrey W. SmithStephen J. Foley
    • H04B7/005H04B7/08H04B7/15
    • H04B7/2606H04B7/0802H04B7/15542H04W52/42H04B7/0828
    • In a conventional Time Division Multiple Access (TDMA) wireless system, the specified distance between a mobile unit and the base transceiver system (BTS) cannot exceed predetermined distances because of time slot synchronization constraints. Furthermore, varying distances between mobile units and the BTS, as well as Rayleigh fading, caused by destructive interference effects between direct and reflected signals, create extreme signal strength variations in the initial uplink signal from the mobile stations. The use of spatially-diverse antennas for receiving uplink signals provides diversity gain and mitigates deep fades. Furthermore, selecting the stronger of the spatially-diverse uplink signals mitigates deep fades and reduces frequency usage in the backhaul frequency band. In this approach to extending TDMA system coverage, in-band translator components are located in the center of remote cells which would normally contain a base transceiver system (BTS). The in-band translators include delay elements to implement slot-by-slot selective spatial diversity and automatic level control in a predictive feedforward fashion. The selective diversity mitigates deep Rayleigh fades, while the dynamic automatic level control drastically reduces the uplink backhaul dynamic range to allow for greater backhaul distances. Predictive feedforward automatic level control also eliminates overload and saturation of the backhaul high power amplifier, normally caused by wide variations in uplink power levels.
    • 在传统的时分多址(TDMA)无线系统中,由于时隙同步约束,移动单元与基站收发器系统(BTS)之间的指定距离不能超过预定距离。 此外,移动单元与BTS之间的距离变化以及由直接和反射信号之间的相互干扰影响引起的瑞利衰落造成来自移动台的初始上行链路信号的极端信号强度变化。 使用空间多样的天线来接收上行链路信号提供分集增益并减轻深度衰落。 此外,选择较强的空间多样化的上行链路信号可以减轻深度衰落,并减少回程频带中的频率使用。 在这种扩展TDMA系统覆盖的方法中,带内转换器组件位于通常包含基站收发器系统(BTS)的远程小区的中心。 带内转换器包括以预定的前馈方式实现逐时隙选择性空间分集和自动电平控制的延迟元件。 选择性分集减轻了瑞利衰落深度,而动态自动电平控制大大降低了上行链路回程动态范围,从而允许更大的回程距离。 预测前馈自动电平控制还消除了回程高功率放大器的过载和饱和,通常由上行链路功率电平的宽泛变化引起。
    • 4. 发明授权
    • Selective substrates for matrix metalloproteinases
    • 基质金属蛋白酶的选择性底物
    • US07935785B2
    • 2011-05-03
    • US12252160
    • 2008-10-15
    • Jeffrey W. SmithEmily I. ChenSteven J. Kridel
    • Jeffrey W. SmithEmily I. ChenSteven J. Kridel
    • C07K5/00C07K14/00
    • A61K49/0021A61K47/64A61K49/0056C07K5/0806C07K5/0808C07K5/081C07K5/0812C07K5/0815C07K5/0821C07K5/0823C07K5/1008C07K5/101C07K5/1013C07K5/1016C07K5/1019C07K5/1024C07K7/06C07K7/08C12Q1/37
    • The invention provides isolated MMP-2, MMP-9 and MT1-MMP selective substrate polypeptides or functional peptidomimetics. The selective substrate polypeptides contain the following sequences: MMP-2 selective substrate polypeptides contain SEQ ID NOS:1-27, MMP-9 selective substrate polypeptides contain SEQ ID NOS:28-35, and MT1-MMP selective substrate polypeptide contain SEQ ID NOS:36-40. In addition, the invention provides a method of preferentially directing a moiety to a site of MMP-2 activity by administering to a subject an effective amount of an isolated MMP-2 selective substrate polypeptide containing SEQ ID NOS:45-47 linked to a moiety. Also provided is a method of preferentially directing a moiety to a site of MMP-9 activity by administering to a subject an effective amount of an isolated MMP-9 selective substrate polypeptide containing SEQ ID NO:44 linked to a moiety, and preferentially directing a moiety to a site of MT1-MMP activity by administering to a subject an effective amount of an isolated MT1-MMP selective substrate polypeptide containing SEQ ID NOS:36-40 linked to a moiety.
    • 本发明提供分离的MMP-2,MMP-9和MT1-MMP选择性底物多肽或功能肽模拟物。 选择性底物多肽包含以下序列:MMP-2选择性底物多肽含有SEQ ID NO:1-27,含有SEQ ID NO:28-35的MMP-9选择性底物多肽,并且含有SEQ ID NOS的MT1-MMP选择性底物多肽 :36-40。 此外,本发明提供了通过向受试者施用有效量的与部分连接的含有SEQ ID NO:45-47的分离的MMP-2选择性底物多肽来优先将部分定向到MMP-2活性位点的方法 。 还提供了通过向受试者施用有效量的与部分连接的含有SEQ ID NO:44的分离的MMP-9选择性底物多肽,优先将一部分连接至部分MMP-9活性部位的方法, 通过向受试者施用有效量的与部分连接的含有SEQ ID NO:36-40的分离的MT1-MMP选择性底物多肽,从而部分到MT1-MMP活性的位点。
    • 5. 发明授权
    • Method to calibrate RF paths of an FHOP adaptive base station
    • 校准FHOP自适应基站的RF路径的方法
    • US07643852B2
    • 2010-01-05
    • US11333193
    • 2006-01-17
    • John NollJeffrey W. SmithShannon TomarchioBrady Gaughan
    • John NollJeffrey W. SmithShannon TomarchioBrady Gaughan
    • H04B1/38
    • H04B7/0848H04B17/21
    • A method for calibration of RF paths of a frequency hopping adaptive base transceiver station is provided. The method of calibration calibrates a wireless cellular telecommunication system with a frequency hopping adaptive base transceiver station including an adaptive antenna array with two or more RF traffic transceiver apparatus chains. The wireless cellular telecommunication system communicates with mobile units on a frequencies defined by a hop list. The method of calibration includes the step of periodically interrupting a frequency hopping process of the frequency hopping adaptive base transceiver station while calls are in progress. The method of calibration further includes the step of calibrating an antenna transmit path for a RF traffic transceiver apparatus chain at a frequency selected to include one or more frequencies in the hop list to determine a set of weighting parameters for the antenna transmit path at the one or more frequencies. A self-calibrating frequency hopping adaptive base transceiver station is also provided.
    • 提供了一种用于校准跳频自适应基站的射频路径的方法。 校准方法使用包括具有两个或更多个RF业务收发器设备链的自适应天线阵列的跳频自适应基站收发器校准无线蜂窝电信系统。 无线蜂窝电信系统在跳频列表定义的频率上与移动单元进行通信。 校准方法包括在呼叫进行期间周期性地中断跳频自适应基站收发机的跳频过程的步骤。 校准方法还包括校准用于RF业务收发器设备链的天线发射路径的步骤,该频率被选择为包括跳频列表中的一个或多个频率,以确定一个天线发射路径的一组加权参数 或更多的频率。 还提供了自校准跳频自适应基站收发台。