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    Spread spectrum multiple access communication system using satellite or terrestrial repeaters
    41.
    发明授权
    Spread spectrum multiple access communication system using satellite or terrestrial repeaters 失效
    使用卫星或地面中继器的扩频多址通信系统

    公开(公告)号：US4901307A

    公开(公告)日：1990-02-13

    申请号：US921261

    申请日：1986-10-17

    申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Lindsay A. Weaver, Jr.

    发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Lindsay A. Weaver, Jr.

    IPC分类号： H04J13/00 ,  H04B7/15 ,  H04B7/216 ,  H04B7/26

    CPC分类号： H04B7/2041 ,  H04B7/216 ,  H04B2201/70701

    摘要： A multiple access, spread spectrum communication system and method for providing high capacity communications to, from, or between a plurality of system users, using code-division-spread-spectrum communication signals. The communication system uses means for providing marginal isolation between user communication signals. The marginal isolation is provided by generating simultaneous multiple steerable beams; using an omni-directional antenna with polarization enhancement; using power control devices to adjust the output power for user generated communication signals either in response to their input activity level, or in accordance with a minimum allowable power for maintaining a communication link. The communication system can also employ a means for transmitting a predetermined pilot chip sequence contiguous with the code-division-spread-spectrum communication signals.In further embodiments the communication system employs a plurality of user terminals linked to each other or to other services through one or more terrestrial or satellite repeaters. Multiple satellite repeaters are operable in a new communication mode to obtain further gains in signal isolation.

    摘要翻译： 一种使用码分扩频通信信号向多个系统用户提供高容量通信的多址，扩频通信系统和方法。 通信系统使用用于在用户通信信号之间提供边缘隔离的装置。 边缘隔离通过同时产生多个可操纵梁来提供; 使用具有极化增强的全向天线; 使用功率控制装置来响应于其输入活动水平或根据用于维持通信链路的最小允许功率来调整用户生成的通信信号的输出功率。 通信系统还可以采用用于发送与码分扩展频谱通信信号相邻的预定导频码片序列的装置。 在另外的实施例中，通信系统采用通过一个或多个地面或卫星中继器彼此链接或与其他服务相连的多个用户终端。 多个卫星中继器可以在新的通信模式下操作，以获得信号隔离的进一步增益。

    Decresting peaks in a CDMA signal
    44.
    发明授权
    Decresting peaks in a CDMA signal 有权
    去除CDMA信号中的峰值

    公开(公告)号：US06515961B1

    公开(公告)日：2003-02-04

    申请号：US09265203

    申请日：1999-03-10

    申请人： Lindsay A. Weaver, Jr. ,  Brian K. Harms ,  Anthony C. K. Soong

    发明人： Lindsay A. Weaver, Jr. ,  Brian K. Harms ,  Anthony C. K. Soong

    IPC分类号： H04B7216

    CPC分类号： H04B1/707 ,  H04B2201/70706

    摘要： The invention is a CDMA decresting technology that reduces or eliminates peaks in the CDMA signal. The CDMA technology generates a correction signal in response to peaks in the CDMA signal that exceed a value. The value typically corresponds to the maximum power level of a power amplifier. The CDMA technology combines the correction signal with the CDMA signal to generate a decrested CDMA signal with reduced peaks. In some examples of the invention, the CDMA technology processes polar coordinate representations of the quadrature components of the CDMA signal to generate the correction signal. Using the invention, the power amplifier in a CDMA base station can operate at increased power levels without exceeding out-of-band signal power limitations. As a result, the base station operates more efficiently and with a greater range or capacity.

    摘要翻译： 本发明是减少或消除CDMA信号中的峰值的CDMA衰减技术。 CDMA技术响应于超过一个值的CDMA信号中的峰值产生校正信号。 该值通常对应于功率放大器的最大功率电平。 CDMA技术将校正信号与CDMA信号组合，以产生具有降低的峰值的衰减的CDMA信号。 在本发明的一些示例中，CDMA技术处理CDMA信号的正交分量的极坐标表示以产生校正信号。 使用本发明，CDMA基站中的功率放大器可以在增加的功率电平下工作，而不超出带外信号功率限制。 因此，基站更有效地运行并具有更大的范围或容量。

    System, method and computer program product for controlling a transmit signal using an expected power level
    45.
    发明授权
    System, method and computer program product for controlling a transmit signal using an expected power level 失效
    用于使用预期功率电平来控制发射信号的系统，方法和计算机程序产品

    公开(公告)号：US06286994B1

    公开(公告)日：2001-09-11

    申请号：US09069885

    申请日：1998-04-29

    申请人： Robert W. Boesel ,  Levent Aydin ,  Lindsay A. Weaver, Jr.

    发明人： Robert W. Boesel ,  Levent Aydin ,  Lindsay A. Weaver, Jr.

    IPC分类号： H04L2704

    CPC分类号： H04W52/225 ,  H04W52/08 ,  H04W52/10

    摘要： A system, method and computer program product that uses an expected output power level to compensate for slowly changing unintentional power fluctuations in a signal transmission system such that the actual transmitted power matches a calculated desired transmit power. Digital expected power data is sampled and filtered to generate an expected output power level. Actual output data is sampled and filtered to generate an actual output power level. A comparator periodically compares the expected output power level to the actual output power level. Preferably, the comparator first removes a correction value from the actual output power level that was added to the transmit signal to correct for unintentional power fluctuations. The resultant ratio or difference is sent to a correction module which generates a correction value therefrom. The correction value is converted to a dB quantity and added to existing correction values.

    摘要翻译： 一种系统，方法和计算机程序产品，其使用期望的输出功率电平来补偿信号传输系统中缓慢变化的无意的功率波动，使得实际发射功率与计算出的所需发射功率匹配。 数字预期功率数据被采样和滤波以产生预期的输出功率电平。 实际输出数据被采样和滤波以产生实际的输出功率电平。 比较器周期性地将预期输出功率电平与实际输出功率电平进行比较。 优选地，比较器首先从添加到发射信号的实际输出功率电平中去除校正值，以校正无意的功率波动。 所得到的比率或差被发送到从其产生校正值的校正模块。 校正值被转换为dB数量并加到现有校正值。

    Method and apparatus for detection of tandem vocoding to modify vocoder filtering
    48.
    发明授权
    Method and apparatus for detection of tandem vocoding to modify vocoder filtering 失效
    用于检测串联声码的方法和装置，用于修改声码器滤波

    公开(公告)号：US5903862A

    公开(公告)日：1999-05-11

    申请号：US575287

    申请日：1996-01-11

    申请人： Lindsay A. Weaver, Jr. ,  S. Katherine Lam ,  William R. Gardner ,  Paul E. Jacobs ,  Andrew P. DeJaco ,  Gilbert C. Sih

    发明人： Lindsay A. Weaver, Jr. ,  S. Katherine Lam ,  William R. Gardner ,  Paul E. Jacobs ,  Andrew P. DeJaco ,  Gilbert C. Sih

    IPC分类号： G10L11/02 ,  G10L19/00 ,  G10L19/14 ,  H04B7/26 ,  H04B14/04 ,  H04Q11/04 ,  H04W88/18 ,  G10L9/18 ,  H04Q7/24

    CPC分类号： H04W88/181 ,  G10L19/16

    摘要： When one vocoding system is coupled to another vocoding system, a tandem arrangement results. The tandem configuration results in voice quality degradation as speech is encoded and decoded, then encoded and decoded again. One reason for the degradation is that postfiltering performed at the output of the speech decoding process introduces distortions in the spectral content of the reconstructed speech as compared to the original speech. The present invention prevents the degradation due to the use of postfilters by modifying the postfiltering within the vocoders where a tandem configuration exists. A detection code is embedded within the data signal to indicate the existence of a tandem configuration. If the detection code is received at a vocoder, modified vocoding is established within the vocoders to prevent the degradation due to the postfiltering.

    摘要翻译： 当一个声码系统耦合到另一个声码系统时，会产生串联排列。 串音配置导致语音质量下降，因为语音被编码和解码，然后被再次编码和解码。 降级的一个原因是在语音解码过程的输出处执行的后置滤波与原始语音相比引入了重构语音的频谱内容中的失真。 本发明通过修改存在串列配置的声码器中的后置滤波来防止由于使用后置滤波器导致的劣化。 检测码嵌入在数据信号中以指示串联配置的存在。 如果在声码器处接收到检测码，则在声码器内建立修改后的声码，以防止由于后置滤波引起的劣化。

    Method and apparatus for distribution/consolidation (DISCO) interface units for packet switched interconnection system
    49.
    发明授权
    Method and apparatus for distribution/consolidation (DISCO) interface units for packet switched interconnection system 失效
    用于分组交换互连系统的分配/合并（DISCO）接口单元的方法和装置

    公开(公告)号：US5854786A

    公开(公告)日：1998-12-29

    申请号：US513306

    申请日：1995-08-09

    申请人： Eric L. Henderson ,  Houtan Dehesh ,  Farrokh Khatibi ,  Richard Larson ,  Todd R. Sutton ,  Lindsay A. Weaver, Jr. ,  Kendrick Hoy Leong Yuen

    发明人： Eric L. Henderson ,  Houtan Dehesh ,  Farrokh Khatibi ,  Richard Larson ,  Todd R. Sutton ,  Lindsay A. Weaver, Jr. ,  Kendrick Hoy Leong Yuen

    IPC分类号： H04W24/04 ,  H04W92/12 ,  H04B7/216

    CPC分类号： H04W92/12 ,  H04W24/04 ,  Y10S370/902 ,  Y10S370/912

    摘要： A packet switching architecture provides for a switch system comprised of a cellular base station in communication with the PSTN through a switch. Data packets are routed through the switch system as necessary to effect communication between the public switched telephone network (PSTN) and mobile radiotelephones disposed within the cellular coverage area surrounding the base station. A packet interconnection subsystem operates to transfer data packets between a plurality of interface ports, to which are coupled a corresponding plurality of signal lines. Within the interconnection subsystem, one or more distribution/consolidation (DISCO) interface units are mutually coupled together through a central router unit. Each DISCO interface unit is configured to consolidate the data packets received through at least two signal ports onto a consolidation bus, as well as to distribute the addressed data packets from a distribution bus to two or more of ports. In a preferred implementation, the interconnection subsystem is realized so as to efficiently provide redundancy among the interface units within the interconnection network.

    摘要翻译： 分组交换架构提供了由通过交换机与PSTN通信的蜂窝基站组成的交换机系统。 根据需要，通过交换机系统路由数据分组，以实现公共交换电话网（PSTN）与设置在基站周围的蜂窝覆盖区域内的移动无线电话机之间的通信。 分组互连子系统操作以在耦合到相应的多条信号线的多个接口端口之间传送数据分组。 在互连子系统中，一个或多个分配/合并（DISCO）接口单元通过中央路由器单元相互耦合在一起。 每个DISCO接口单元被配置为将通过至少两个信号端口接收的数据分组合并到合并总线上，以及将寻址的数据分组从分发总线分发到两个或更多个端口。 在优选实现中，互连子系统被实现为在互连网络内的接口单元之间有效地提供冗余。

    Method and apparatus for providing a cone of silence in a cellular communication system
    50.
    发明授权
    Method and apparatus for providing a cone of silence in a cellular communication system 失效
    用于在蜂窝通信系统中提供静音锥的方法和装置

    公开(公告)号：US5828661A

    公开(公告)日：1998-10-27

    申请号：US651368

    申请日：1996-05-22

    申请人： Lindsay A. Weaver, Jr. ,  Katherine W. White

    发明人： Lindsay A. Weaver, Jr. ,  Katherine W. White

    IPC分类号： H04W16/32 ,  H04W36/14 ,  H04J3/16

    CPC分类号： H04W36/0055 ,  H04W16/32 ,  H04W48/12

    摘要： In a communications network, a remote unit communicates with another user via at least one base station. The network has a plurality of base stations controlled by a mobile switching center. Each base station of the plurality of base stations transmits an identifying pilot signal. To defining an area in which communication between a set of the base stations and the remote unit is forbidden, an auxiliary antenna transmits a silent region identifying pilot signal. The remote unit measures a signal strength of a set of identifying pilot signals corresponding to a neighbor set of base stations and measures a signal strength of the silent region identifying pilot signal. The remote unit sends a pilot strength measurement report to the mobile switching center via a first base station with which the remote unit has established communication. A handoff of the established communication between the remote unit and the first base station is initiated if the pilot strength measurement report comprises an entry corresponding to the silent region identifying pilot signal.

    摘要翻译： 在通信网络中，远程单元经由至少一个基站与另一用户进行通信。 网络具有由移动交换中心控制的多个基站。 多个基站中的每个基站发送识别导频信号。 为了定义禁止一组基站和远程单元之间的通信的区域，辅助天线发送无声区域识别导频信号。 远程单元测量与基站的相邻集合相对应的一组识别导频信号的信号强度，并测量无声区域识别导频信号的信号强度。 远程单元经由与远程单元建立通信的第一基站向移动交换中心发送导频强度测量报告。 如果导频强度测量报告包括与静音区域识别导频信号相对应的条目，则启动远程单元和第一基站之间建立的通信的切换。