Spread spectrum multipath combination
    61.
    发明授权
    Spread spectrum multipath combination 有权
    扩频多径组合

    公开(公告)号:US07457381B1

    公开(公告)日:2008-11-25

    申请号:US09659431

    申请日:2000-09-08

    IPC分类号: H04B7/10 H04L1/02

    CPC分类号: H04B7/0857

    摘要: Multipath relative channel estimations for weighting maximal ratio combining of RAKE detectors in wireless communication systems uses maximal eigenvectors of covariance matrices of path signals. Estimates for close-in and outlying sets of symbols provides linear time change channel estimation.

    摘要翻译: 无线通信系统中RAKE检测器加权最大比组合的多路径相对信道估计使用路径信号的协方差矩阵的最大特征向量。 近似和偏离的符号组的估计提供线性时变信道估计。

    Beam Forming for Transmit Using Bluetooth Modified Hopping Sequences (BFTBMH)
    62.
    发明申请
    Beam Forming for Transmit Using Bluetooth Modified Hopping Sequences (BFTBMH) 有权
    使用蓝牙修改跳跃序列(BFTBMH)发送的波束形成

    公开(公告)号:US20060280143A1

    公开(公告)日:2006-12-14

    申请号:US11466270

    申请日:2006-08-22

    IPC分类号: H04Q7/00 H04L12/56

    摘要: A communication circuit (28) is designed with a signal processing circuit (370) arranged to produce a first plurality of data signals and receive a second plurality of data signals. A transmit circuit (364) is coupled to receive the first plurality of data signals and transmit each data signal of the first plurality of data signals on a respective transmit frequency in a predetermined sequence of transmit frequencies. A receive circuit (362) is coupled to receive each data signal of the second plurality of data signals from a remote transmitter on the respective transmit frequency in the predetermined sequence. The receive circuit applies the second plurality of data signals to the signal processing circuit.

    摘要翻译: 通信电路(28)被设计成具有被配置为产生第一多个数据信号并接收第二多个数据信号的信号处理电路(370)。 发射电路(364)被耦合以接收第一多个数据信号,并且以预定的发射频率的顺序在相应的发射频率上发射第一多个数据信号的每个数据信号。 接收电路(362)被耦合以便以预定顺序在相应发射频率上从远程发射机接收第二多个数据信号的每个数据信号。 接收电路将第二多个数据信号施加到信号处理电路。

    Cascade map decoder and method
    64.
    发明授权
    Cascade map decoder and method 有权
    级联地图解码器和方法

    公开(公告)号:US07020827B2

    公开(公告)日:2006-03-28

    申请号:US10032859

    申请日:2001-12-28

    IPC分类号: H03M13/03 H03M13/00

    摘要: MAP decoder with cascade architecture. Iterative Turbo decoders can use two such cascade MAP decoders with feedback in conjunction with interleaver and deinterleaver where the MAP decoders generate extrinsic information for iterations. The cascade architecture limits the required number of max* blocks which compute the logarithm of a sum of exponentials as part of the BCJR method.

    摘要翻译: MAP解码器具有级联架构。 迭代Turbo解码器可以使用两个这样的级联MAP解码器,其中反馈与交织器和解交织器结合,其中MAP解码器生成用于迭代的外在信息。 级联架构限制了所需数量的max *块,它们计算指数之和的对数作为BCJR方法的一部分。

    Central office line card with code recognition for increasing data rates over PSTN
    67.
    发明授权
    Central office line card with code recognition for increasing data rates over PSTN 有权
    中央办公室线卡,具有通过PSTN增加数据速率的代码识别

    公开(公告)号:US06996118B2

    公开(公告)日:2006-02-07

    申请号:US09953035

    申请日:2001-09-13

    IPC分类号: H04J3/16

    CPC分类号: H04M3/005

    摘要: A linecard (175) permits an increased rate connection between a subscriber (15) and a service provider (40) over the PSTN (50) includes an analog interface (152) a digital interface (165) coupled to the digital backplane (170) to the service provider's host server (34), a conversion circuit (258) interspersed between the analog interface (152) and the digital interface (165), and a linecard microcontroller (300) configured to request bandwidth on the backplane (170) A linecard (175) incorporates a codec (250) with a code recognition mechanism (200) to monitor the Pulse Code Modulated (PCM) input from the provider. The code recognition mechanism (200) provides a way to dynamically allocate and deallocate timeslots on the backplane (170).

    摘要翻译: 线路卡(175)允许通过PSTN(50)的用户(15)和服务提供商(40)之间的增加的速率连接包括模拟接口(152)耦合到数字背板(170)的数字接口(165) 分布在模拟接口(152)和数字接口(165)之间的转换电路(258)以及被配置为在背板(170)A上请求带宽的线卡微控制器(300)向服务提供商的主机服务器(34) 线卡(175)包含具有代码识别机构(200)的编解码器(250),以监视来自提供商的脉冲编码调制(PCM)输入。 代码识别机制(200)提供了一种在背板(170)上动态地分配和释放时隙的方法。

    Central office line card with code recognition for increasing data rates over PSTN

    公开(公告)号:US06996091B2

    公开(公告)日:2006-02-07

    申请号:US09953036

    申请日:2001-09-13

    IPC分类号: H04L12/66

    摘要: A linecard (175) permits an increased rate connection between a subscriber (15) and a service provider (40) over the PSTN (50) includes an analog interface (152) a digital interface (165) coupled to the digital backplane (170) to the service provider's host server (34), a conversion circuit (258) interspersed between the analog interface (152) and the digital interface (165), and a linecard microcontroller (300) configured to request bandwidth on the backplane (170) A linecard (175) incorporates a codec (250) with a code recognition mechanism (200) to monitor the Pulse Code Modulated (PCM) input from the provider. The code recognition mechanism (200) provides a way to dynamically allocate and deallocate timeslots on the backplane (170).

    Wireless communications system with combining of multiple paths selected from correlation to the primary synchronization channel
    70.
    发明授权
    Wireless communications system with combining of multiple paths selected from correlation to the primary synchronization channel 有权
    无线通信系统,具有从与主同步信道相关选择的多个路径的组合

    公开(公告)号:US06829290B1

    公开(公告)日:2004-12-07

    申请号:US09669394

    申请日:2000-09-26

    IPC分类号: H04B169

    摘要: A wireless receiver (UST). The receiver comprises at least one antenna (ATU) for receiving a plurality of frames (FR) in a form of a plurality of paths. Each of the plurality of frames comprises a plurality of time slots (SLN), and each of the plurality of time slots comprises a plurality of symbols. Further, each of the plurality of paths has a corresponding sample position, wherein the plurality of symbols comprise a primary synchronization code symbol (PSC). The receiver further comprises circuitry (52) for correlating a primary synchronization code across a group of the plurality of symbols, and circuitry for identifying a plurality of path positions within the group. Each of the plurality of path positions corresponds to a respective one of a plurality of largest-amplitude paths represented within the group as detected in response to the circuitry for correlating. Finally, the receiver comprises circuitry for combining (54, 58) the plurality of largest-amplitude paths in response to identification of those paths by the circuitry for identifying.

    摘要翻译: 无线接收器(UST)。 接收机包括用于接收多个路径形式的多个帧(FR)的至少一个天线(ATU)。 多个帧中的每一个包括多个时隙(SLN),并且多个时隙中的每一个包括多个符号。 此外,多个路径中的每一个具有对应的采样位置,其中多个符号包括主同步码符号(PSC)。 接收机还包括用于将多个符号组中的主同步码相互关联的电路(52)以及用于识别组内的多个路径位置的电路​​。 多个路径位置中的每一个对应于响应于用于相关的电路检测到的在组内表示的多个最大幅度路径中的相应一个路径位置。 最后,接收机包括用于响应于用于识别的电路的那些路径的识别来组合(54,58)多个最大幅度路径的电路。