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36 条记录 (耗时 0.056 秒)

    Variable block size adaptation algorithm for noise-robust acoustic echo cancellation
    5.
    发明授权
    Variable block size adaptation algorithm for noise-robust acoustic echo cancellation 失效
    用于噪声鲁棒声学回声消除的可变块大小自适应算法

    公开(公告)号：US5546459A

    公开(公告)日：1996-08-13

    申请号：US146644

    申请日：1993-11-01

    申请人： Gilbert C. Sih ,  Franklin P. Antonio

    发明人： Gilbert C. Sih ,  Franklin P. Antonio

    IPC分类号： H03H21/00 ,  H04B3/23 ,  H04M9/08

    CPC分类号： H04B3/23 ,  H03H21/0012

    摘要： An apparatus that automatically adjusts the adaptation block size for a least-mean square (LMS) adaptive filter depending on the input signal-to-noise ratio (SNR) is disclosed. The apparatus monitors the instantaneous SNR and continually adjusts the block size to provide high noise immunity, thereby increasing the convergence speed of the filter and decreasing the asymptotic mean-square error. An exemplary embodiment of the present invention is presented in the context of acoustic echo cancellation, though it is noted that the adaptive filter of the present invention is useful in any environment in which the noise characteristics are subject to change.

    摘要翻译： 公开了一种根据输入信噪比（SNR）自动调整最小均方（LMS）自适应滤波器的自适应块大小的装置。 该装置监视瞬时信噪比，并持续调整块大小，提供高噪声抗扰度，从而提高滤波器的收敛速度，并减小渐近均方误差。 尽管要注意的是本发明的自适应滤波器在噪声特性可能改变的任何环境中都是有用的，但本发明的示例性实施例在声学回声消除的上下文中呈现。

    Method and apparatus for reverse link overload detection
    6.
    发明授权
    Method and apparatus for reverse link overload detection 有权
    用于反向链路过载检测的方法和装置

    公开(公告)号：US06603745B1

    公开(公告)日：2003-08-05

    申请号：US09181345

    申请日：1998-10-28

    申请人： Franklin P. Antonio ,  Walid Hamdy

    发明人： Franklin P. Antonio ,  Walid Hamdy

    IPC分类号： H04B7185

    CPC分类号： H04W28/26 ,  H04B17/382 ,  H04W52/343

    摘要： A detector is used to sample of set of power measurements of a receive signal. The receive signal may comprise one or more signals from remote users as well as interference. A variance of the set of power measurements is also determined. The variance is compared to an overload threshold value. If the variance exceeds the overload threshold value, for some period of time, the system is declaraed to be operating at a potentially unstable point. In this state, future connection originations are denied.

    摘要翻译： 检测器用于对接收信号的一组功率测量进行采样。 接收信号可以包括来自远程用户的一个或多个信号以及干扰。 还确定了功率测量集的变化。 将方差与过载阈值进行比较。 如果方差超过过载阈值，在一段时间内，系统将被声明在潜在的不稳定点运行。 在这种状态下，将来的连接发起被拒绝。

    Increased capacity data transmission in a CDMA wireless communication system
    8.
    发明授权
    Increased capacity data transmission in a CDMA wireless communication system 失效
    增加CDMA无线通信系统中的容量数据传输

    公开(公告)号：US06426960B2

    公开(公告)日：2002-07-30

    申请号：US08881552

    申请日：1997-06-24

    申请人： Franklin P. Antonio

    发明人： Franklin P. Antonio

    IPC分类号： H04J116

    CPC分类号： H04W52/343

    摘要： A method and apparatus for transmitting voice and data in a code division multiple access (CDMA) wireless telecommunications system is described. In an exemplary embodiment of the invention, a base station transmits voice information at a voice transmit power and data at a data transmit power that is equal to a maximum transmit power minus the voice transmit power. In a preferred embodiment of the invention, each base station reports the voice transmit power to a base station controller in 20 ms intervals. The base station controller responds by calculating an available data transmit capacity, and by forwarding data to each base station equal to the available data transmit capacity. Each base station then transmits all voice data at the current voice transmit power, and data at the current data transmission power. If the amount of data received exceeds the capacity provided by the current data transmission power, some data is not transmitted. The base station then notifies the base station controller if data was not transmitted, and the base station controller attempts to retransmit the data at a later time.

    摘要翻译： 描述了在码分多址（CDMA）无线电信系统中发送语音和数据的方法和装置。 在本发明的示例性实施例中，基站以语音发送功率和等于最大发送功率减去语音发送功率的数据发送功率的数据发送语音信息。 在本发明的优选实施例中，每个基站以20ms的间隔向基站控制器报告语音发送功率。 基站控制器通过计算可用数据传输容量，并将数据转发到等于可用数据传输容量的每个基站来进行响应。 每个基站然后以当前语音发送功率发送所有语音数据，并以当前数据发送功率发送数据。 如果接收到的数据量超过当前数据发送功率提供的容量，则不会发送一些数据。 然后，基站通知基站控制器是否没有发送数据，并且基站控制器尝试在稍后的时间重传数据。

    High-data-rate supplemental channel for CDMA telecommunications system
    9.
    发明授权
    High-data-rate supplemental channel for CDMA telecommunications system 失效
    CDMA电信系统的高数据速率补充信道

    公开(公告)号：US06173007B2

    公开(公告)日：2001-01-09

    申请号：US08784281

    申请日：1997-01-15

    申请人： Joseph P. Odenwalder ,  Franklin P. Antonio ,  Edward G. Tiedemann, Jr. ,  Yu-Cheun Jou

    发明人： Joseph P. Odenwalder ,  Franklin P. Antonio ,  Edward G. Tiedemann, Jr. ,  Yu-Cheun Jou

    IPC分类号： H04K100

    CPC分类号： H04B1/707 ,  H04B7/264 ,  H04J13/0003 ,  H04J13/0048 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0067 ,  H04L1/08 ,  H04L2001/0093

    摘要： A novel and improved method for implementing a high-transmission-rate over-the-air interface is described. A transmit system provides an in-phase channel set and a quadrature-phase channel set. The in-phase channel set is used to provide a complete set of orthogonal medium rate control and traffic channels. The quadrature-phase channel set is used to provide a high-rate supplemental channel and an extended set of medium rate channels that are orthogonal to each other and the original medium rate channels. The high-rate supplemental channel is generated over a set of medium rate channels using a short channel code. The medium rate channel are generated using a set of long channel codes.

    摘要翻译： 描述了一种用于实现高速率空中接口的新颖和改进的方法。 发射系统提供同相信道集和正交相位信道集合。 同相信道集用于提供一套完整的正交媒体速率控制和业务信道。 正交相位信道集合用于提供彼此正交的高速率补充信道和扩展的中等速率信道集合以及原始媒体速率信道。 使用短信道码在一组中等速率信道上生成高速率补充信道。 中频率信道是使用一组长信道码产生的。

    Current carrier tractor-trailer data link
    10.
    发明授权
    Current carrier tractor-trailer data link 失效
    当前载体拖拉机 - 拖车数据链接

    公开(公告)号：US5142278A

    公开(公告)日：1992-08-25

    申请号：US620133

    申请日：1990-11-30

    申请人： Kamran Moallemi ,  Franklin P. Antonio ,  Daniel K. Butterfield ,  Lindsay A. Weaver, Jr.

    发明人： Kamran Moallemi ,  Franklin P. Antonio ,  Daniel K. Butterfield ,  Lindsay A. Weaver, Jr.

    IPC分类号： B61L15/00 ,  G08G1/127

    CPC分类号： B61L15/0036 ,  B61L15/0072 ,  G08G1/127

    摘要： An apparatus and method for providing communication of information between a truck tractor and trailer via existing truck wiring. At least one transmitter is located in each trailer for generating a unique identification signal representative of trailer identification information corresponding to the trailer in which the transmitter is located, modulating the identification signal, and providing the modulated identification on an existing truck power bus coupling the tractor and trailer. A receiver is located in the tractor for receiving each modulated identification signal on the power bus, demodulating each modulated identification signal and providing each demodulated identification signal to a mobile communications terminal located in the tractor for transmission to a central facility. The system may further include the transmission of trailer status or load status information by the transmitter to the receiver in a similar manner as the identification information.

    摘要翻译： 一种用于通过现有卡车配线提供卡车拖拉机和拖车之间的信息通信的装置和方法。 至少一个发射器位于每个拖车中，用于产生代表对应于发射机所在的预告片的拖车识别信息的唯一标识信号，调制识别信号，以及将耦合拖拉机的现有卡车电力总线上的调制标识提供 和拖车。 接收机位于拖拉机中，用于接收电力总线上的每个调制的识别信号，解调每个调制的识别信号，并将每个解调的识别信号提供给位于拖拉机中的移动通信终端，以便传输到中央设施。 该系统可以进一步包括发射机以与识别信息相似的方式向接收机发送拖车状态或负载状态信息。