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    • 92. 发明授权
    • Noise suppressor for robust speech recognition
    • 噪声抑制器用于强大的语音识别
    • US08185389B2
    • 2012-05-22
    • US12335558
    • 2008-12-16
    • Dong YuLi DengYifan GongJian WuAlejandro Acero
    • Dong YuLi DengYifan GongJian WuAlejandro Acero
    • G10L15/20
    • G10L21/0208G10L15/20
    • Described is noise reduction technology generally for speech input in which a noise-suppression related gain value for the frame is determined based upon a noise level associated with that frame in addition to the signal to noise ratios (SNRs). In one implementation, a noise reduction mechanism is based upon minimum mean square error, Mel-frequency cepstra noise reduction technology. A high gain value (e.g., one) is set to accomplish little or no noise suppression when the noise level is below a threshold low level, and a low gain value set or computed to accomplish large noise suppression above a threshold high noise level. A noise-power dependent function, e.g., a log-linear interpolation, is used to compute the gain between the thresholds. Smoothing may be performed by modifying the gain value based upon a prior frame's gain value. Also described is learning parameters used in noise reduction via a step-adaptive discriminative learning algorithm.
    • 描述了通常用于语音输入的噪声降低技术,其中除了信噪比(SNR)之外,基于与该帧相关联的噪声电平来确定用于帧的噪声抑制相关增益值。 在一个实现中,降噪机制基于最小均方误差,Mel-frequency cepstra降噪技术。 设置高增益值(例如一个),以在噪声电平低于阈值低电平时实现很少或没有噪声抑制,以及设置或计算的低增益值,以实现高于阈值高噪声电平的大噪声抑制。 使用噪声功率相关函数,例如对数线性插值来计算阈值之间的增益。 可以通过基于先前帧的增益值修改增益值来执行平滑化。 还描述了通过步进自适应识别学习算法在降噪中使用的学习参数。
    • 93. 发明授权
    • Method and system of replacing smart card
    • 更换智能卡的方法和系统
    • US08141136B2
    • 2012-03-20
    • US10513933
    • 2003-05-12
    • Ping LeeCedric CollombHong Wei CaoXu WuSimon ChoiJian Wu
    • Ping LeeCedric CollombHong Wei CaoXu WuSimon ChoiJian Wu
    • G06F7/04G06F21/00G08B29/00H04L29/06H04L9/32H04L9/00
    • H04W8/205G06Q20/3552G07F7/1008H04W8/265H04W12/04
    • The present invention disclosed a method and system of replacing smart cards. It uses a new identification device (a new SIM) to replace an old one (an old SIM) associated with a user account. The new identification device has an identification number (ICCID). The new identification device is activated in the following manner. The old identification device communicates with an identification-management center through a communication interface (mobile telephone). And the identification-management center recognizes the old identification device. The identification number of the new identification device is sent to the identification-management center through the communication interface. The identification-management center checks the identification number. If the identification number is correct, the user account will be assigned to the new identification device by the identification-management center.
    • 本发明公开了一种替换智能卡的方法和系统。 它使用新的识别设备(新的SIM)来替换与用户帐户相关联的旧的(旧的SIM卡)。 新的识别装置具有识别号(ICCID)。 以下列方式激活新的识别装置。 旧识别装置通过通信接口(移动电话)与识别管理中心进行通信。 识别管理中心识别旧的识别设备。 通过通信接口将新的识别装置的识别号码发送到识别管理中心。 识别管理中心检查识别号码。 如果识别号码正确,用户帐号将由识别管理中心分配给新的识别设备。
    • 97. 发明授权
    • Wireless security badge
    • 无线安全徽章
    • US07724207B2
    • 2010-05-25
    • US11524964
    • 2006-09-22
    • Philip D. MooneyJian Wu
    • Philip D. MooneyJian Wu
    • G09G5/00
    • G07C9/00031G07C9/00119
    • An embodiment of the disclosed subject matter allows wireless electronic badges to temporarily establish a wireless network, such as a piconet network, with a network security station. The wireless electronic badges automatically exchange user code with the network security station, to determine if the wireless electronic badge is authorized. If the wireless electronic badge is an authorized badge, then the network security station transmits display information to the authorized badge, for example, data for a photograph of the authorized user, where, upon receipt by the authorized badge, the badge visually displays the photograph.
    • 所公开的主题的实施例允许无线电子徽章临时建立具有网络安全站的无线网络,例如微微网络。 无线电子徽章自动与网络安全站交换用户代码,以确定无线电子徽章是否被授权。 如果无线电子徽章是授权徽章,则网络安全站将显示信息发送给授权的徽章,例如授权用户的照片的数据,在授权的徽章收到后,徽章可以直观地显示照片 。