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    • 71. 发明申请
    • Cooperative diagnosis in a wireless lan
    • 无线局域网的合作诊断
    • US20070239876A1
    • 2007-10-11
    • US11400103
    • 2006-04-07
    • Ranveer ChandraVenkata PadmanabhanMing Zhang
    • Ranveer ChandraVenkata PadmanabhanMing Zhang
    • G06F15/177G06F15/16
    • H04W24/04H04L61/2015H04W84/12
    • Communication software to aid portable computers monitor, and correct problems accessing a network through a wireless access point. The software controls the exchange of information with other portable computers in the vicinity of the wireless access point. The information exchanged may be used to diagnose problems at the wireless layer, the network layer, the transport layer or the application layer. The information exchanged may provide information about the configuration of computers that successfully or unsuccessfully communicate through the wireless access point. A portable computer receiving this configuration information may compare it to similar information about its own configuration to diagnose problems. Such software may be of particular benefit for portable computers experiencing difficulty connecting to a network at a wireless hot spot.
    • 用于辅助便携式计算机的通信软件监视并纠正通过无线接入点访问网络的问题。 软件控制与无线接入点附近的其他便携式计算机的信息交换。 所交换的信息可以用于诊断无线层,网络层,传输层或应用层的问题。 所交换的信息可以提供关于通过无线接入点成功或不成功通信的计算机的配置的信息。 接收该配置信息的便携式计算机可将其与关于其自身配置的类似信息进行比较以诊断问题。 这样的软件对于在无线热点处连接到网络的难易的便携式计算机可能是特别有益的。
    • 77. 发明授权
    • System for noise suppression, transceiver and method for noise suppression
    • 噪声抑制系统,收发器和噪声抑制方法
    • US07035796B1
    • 2006-04-25
    • US10275460
    • 2000-05-06
    • Ming ZhangHui Lan
    • Ming ZhangHui Lan
    • G10L21/02
    • G10L21/0208G10L2021/02085
    • A system with an accompanying method is provided to improve the signal-to-noise ratio (SNR) of noisy speech by suppressing acoustic background noise. The background noise consists of narrow band noise from rotating machine, audio signals from stereo-loudspeakers of audio entertainment device, and other ambient noise. In this system/apparatus, a microphone senses the speech intermingled with the background noise, and another microphone senses the noisy background. In addition, a measurement sensor is used to measure RPM (revolutions-per-minutes) of the rotating machine and two wires are used to acquire audio signals from the stereo-loudspeakers of the audio entertainment device. Furthermore, to provide better suppression performance for the acoustic audio signals, the characteristics of these loudspeakers are used to compensate for the distortion caused by the loudspeakers. Adaptive comb filters and adaptive FIR filters are applied to estimate the ambient noise and suppress the background noise. After processing, the system outputs the enhanced speech signal with higher SNR.
    • 提供具有伴随方法的系统,以通过抑制声学背景噪声来改善噪声语音的信噪比(SNR)。 背景噪声包括来自旋转机器的窄带噪声,音频娱乐设备的立体声扬声器的音频信号和其他环境噪声。 在该系统/装置中,麦克风感测与背景噪声混合的语音,另一麦克风感测到噪声背景。 此外,测量传感器用于测量旋转机器的RPM(每分钟转数),并且使用两根导线从音频娱乐设备的立体声扬声器获取音频信号。 此外,为了为声学音频信号提供更好的抑制性能,这些扬声器的特性被用于补偿由扬声器引起的失真。 应用自适应梳状滤波器和自适应FIR滤波器来估计环境噪声并抑制背景噪声。 处理后,系统以更高的SNR输出增强型语音信号。