公开(公告)号：US20130332155A1

公开(公告)日：2013-12-12

申请号：US13490063

申请日：2012-06-06

申请人： Vinod Prakash ,  Xiaoqin Sun ,  Warren Lam ,  Qin Li

发明人： Vinod Prakash ,  Xiaoqin Sun ,  Warren Lam ,  Qin Li

IPC分类号： G10L21/02 ,  G10L21/00

CPC分类号： H04M9/082

摘要： The detection of double-talk in audio communication is provided. A communication device may receive an echo signal mixed with a speech signal at a near end location. The echo signal may be generated by speech transmitted by a remote party at a far end location to a local party at the near end location. The speech signal may be received from the local party for transmission to the remote party. The communication device may then filter the echo signal and the speech signal. The communication device may then analyze the speech signal to identify speech characteristics which indicate the presence of double-talk. The communication device may then set a flag upon identifying the speech characteristics which indicate the presence of the double-talk. The communication device may then process the filtered signals to further suppress remaining echo prior to transmission of the speech signal to the remote party.

摘要翻译： 提供了音频通信中的双向通话检测。 通信设备可以在近端位置处接收与语音信号混合的回波信号。 回波信号可以由在远端位置的远程方发送的语音产生，在近端位置处的本地方。 可以从本地方接收语音信号以便传送到远程方。 然后，通信设备可以对回波信号和语音信号进行滤波。 然后，通信设备可以分析语音信号以识别表示双方的存在的语音特征。 然后，通信设备可以在识别指示双方通话的存在的语音特征时设置标志。 然后，通信设备可以处理经滤波的信号，以在将语音信号发送到远程方之前进一步抑制剩余回声。

公开(公告)号：US09450756B2

公开(公告)日：2016-09-20

申请号：US13879619

申请日：2010-12-22

申请人： Zhiqiang Du ,  Manxia Tie ,  Guoqiang Zhang ,  Qin Li

发明人： Zhiqiang Du ,  Manxia Tie ,  Guoqiang Zhang ,  Qin Li

IPC分类号： H04L9/32 ,  H04W12/06

CPC分类号： H04L9/32 ,  H04L9/3271 ,  H04W12/06

摘要： A method and a system for authenticating an entity based on a symmetric encryption algorithm are provided. The method includes the following steps: 1) an entity A sends an authentication request message to an entity B; 2) after receiving the authentication request message, the entity B sends an authentication response message to the entity A; 3) the entity A determines the validity of the entity B according to the received authentication response message. The implementation cost of the system can be reduced by using the authentication according to the invention.

摘要翻译： 提供了一种基于对称加密算法认证实体的方法和系统。 该方法包括以下步骤：1）实体A向实体B发送认证请求消息; 2）接收到认证请求报文后，实体B向实体A发送认证响应消息; 3）实体A根据收到的认证响应消息确定实体B的有效性。 通过使用根据本发明的认证可以减少系统的实现成本。

公开(公告)号：US09264405B2

公开(公告)日：2016-02-16

申请号：US13995593

申请日：2011-06-17

申请人： Manxia Tie ,  Qin Li ,  Zhiqiang Du

发明人： Manxia Tie ,  Qin Li ,  Zhiqiang Du

IPC分类号： H04L29/06 ,  H04L9/08

CPC分类号： H04L63/0428 ,  H04L9/08 ,  H04L63/06 ,  H04L63/162

摘要： A switch equipment and data processing method for supporting link layer security transmission are provided. The switch equipment for supporting link layer security transmission comprises a switch module and multiple port modules, each port module is electrically connected with the switch module respectively; the port module supports a link layer key management capability, and is used for establishing a share key for encrypting and decrypting data frames between the switch equipment and other network nodes.

摘要翻译： 提供了用于支持链路层安全传输的交换机设备和数据处理方法。 用于支持链路层安全传输的交换机设备包括交换机模块和多个端口模块，每个端口模块分别与交换机模块电连接; 端口模块支持链路层密钥管理功能，用于建立共享密钥，用于加密和解密交换机设备与其他网络节点之间的数据帧。

公开(公告)号：US20150118960A1

公开(公告)日：2015-04-30

申请号：US14065400

申请日：2013-10-28

申请人： Nicolas Jean Petit ,  Narsimham Venkat Gangishetti ,  Yves Albert Behar ,  Diana Chang ,  Anand A. Parthasarathi ,  Derek Boyd Barrentine ,  Qin Li

发明人： Nicolas Jean Petit ,  Narsimham Venkat Gangishetti ,  Yves Albert Behar ,  Diana Chang ,  Anand A. Parthasarathi ,  Derek Boyd Barrentine ,  Qin Li

IPC分类号： H04W4/00

CPC分类号： H04W4/80

摘要： Embodiments relate generally to wearable electrical and electronic hardware, computer software, wired and wireless network communications, and to wearable/mobile computing devices configured to process audio, in view of noise, and communicate audio. More specifically, disclosed are wearable devices, platforms and methods directed to, for example, provide wearable communication devices, such as a headset. In various embodiments, a wearable communication device includes an array of microphone, an audio processor coupled to the array of microphones, and a vibration detector including, for example, a skin surface microphone (“SSM”).

摘要翻译： 实施例一般涉及可佩戴的电气和电子硬件，计算机软件，有线和无线网络通信以及被配置为考虑到噪声处理音频并传播音频的可穿戴/移动计算设备。 更具体地，公开了可穿戴设备，平台和方法，其指向例如提供可佩戴的通信设备，例如耳机。 在各种实施例中，可穿戴通信设备包括麦克风阵列，耦合到麦克风阵列的音频处理器，以及包括例如皮肤表面麦克风（“SSM”）的振动检测器。

公开(公告)号：US08843748B2

公开(公告)日：2014-09-23

申请号：US13702217

申请日：2011-01-10

申请人： Manxia Tie ,  Jun Cao ,  Qin Li ,  Li Ge

发明人： Manxia Tie ,  Jun Cao ,  Qin Li ,  Li Ge

IPC分类号： H04L29/06 ,  H04L9/08 ,  H04L12/18

CPC分类号： H04L9/0844 ,  H04L12/18 ,  H04L63/061

摘要： A method for establishing a secure network architecture, a method and system for secure communication are provided. The method for establishing a secure network architecture includes: 1) constructing the network architecture where the identities of nodes are legal, including: neighboring node discovery; performing identities certification and shared key negotiation between a node and the neighbor node; 2) constructing a secure switching device architecture, including: establishing a shared key between every two of the switch devices.

摘要翻译： 提供了一种用于建立安全网络架构的方法，一种用于安全通信的方法和系统。 建立安全网络架构的方法包括：1）构建节点身份合法的网络架构，包括：邻居节点发现; 执行节点与邻居节点之间的身份认证和共享密钥协商; 2）构建安全交换设备架构，包括：在每两个交换设备之间建立共享密钥。

公开(公告)号：US08689283B2

公开(公告)日：2014-04-01

申请号：US13391051

申请日：2009-12-23

申请人： Manxia Tie ,  Jun Cao ,  Li Ge ,  Xiaolong Lai ,  Zhenhai Huang ,  Qin Li ,  Zhiqiang Du

发明人： Manxia Tie ,  Jun Cao ,  Li Ge ,  Xiaolong Lai ,  Zhenhai Huang ,  Qin Li ,  Zhiqiang Du

IPC分类号： H04L29/06

CPC分类号： H04L63/20 ,  H04L63/061 ,  H04L63/0823 ,  H04L63/205

摘要： The present invention relates to a security access control method and system for wired local area network, the method includes the following steps: 1) a requester (REQ) negotiates the security policy with an authentication access controller (AAC); 2) the requester (REQ) and the authentication access controller (AAC) authenticate the identity; 3) the requester (REQ) negotiates the key with the authentication access controller (AAC). The direct identity authentication between the user and the network access control device is realized by the present invention; the negotiation and the dynamic update of the session key for the link layer data protection are realized; a variety of network architectures such as the enterprise network, the telecommunication network are supported; the scalability is good, the multiple authentication methods are supported; the authentication protocols with different security levels are supported, the requirements of the various subscribers are satisfied; the sub-modules of the protocol are independent, flexible, and easy to be accepted or rejected.

摘要翻译： 本发明涉及有线局域网的安全访问控制方法和系统，该方法包括以下步骤：1）请求者（REQ）与认证接入控制器（AAC）协商安全策略; 2）请求者（REQ）和认证访问控制器（AAC）认证身份; 3）请求者（REQ）与认证接入控制器（AAC）协商密钥。 用户和网络访问控制设备之间的直接身份认证是通过本发明实现的; 实现了链路层数据保护的会话密钥的协商和动态更新; 支持企业网络，电信网络等各种网络架构; 可扩展性好，支持多种认证方式; 支持不同安全级别的认证协议，满足各种用户的要求; 协议的子模块是独立的，灵活的，易于被接受或拒绝。

公开(公告)号：US20140028061A1

公开(公告)日：2014-01-30

申请号：US13875893

申请日：2013-05-02

申请人： Yves Behar ,  Bret Recor ,  Naoya Edahiro ,  Qin Li ,  Andrew J. Kurrasch ,  Christoher C. Hill ,  John Matthai ,  Brock Walker

发明人： Yves Behar ,  Bret Recor ,  Naoya Edahiro ,  Qin Li ,  Andrew J. Kurrasch ,  Christoher C. Hill ,  John Matthai ,  Brock Walker

IPC分类号： A47C7/46 ,  A47C7/00 ,  A47C7/40

CPC分类号： A47C5/12 ,  A47C7/00 ,  A47C7/004 ,  A47C7/282 ,  A47C7/40 ,  A47C7/44 ,  A47C7/46 ,  A47C7/462 ,  A47C7/54

摘要： A seating structure includes a backrest member having an upper edge, opposite side edges and a lower edge. The backrest member has a forwardly facing convex shape formed along a vertical centerline thereof between the upper and lower edges. The lower edge has a forwardly facing concave shape. The lower edge has outer portions positioned forwardly of an entirety of the upper edge.

摘要翻译： 座椅结构包括具有上边缘，相对侧边缘和下边缘的靠背构件。 靠背构件具有沿其垂直中心线在上边缘和下边缘之间形成的向前凸起的形状。 下边缘具有向前的凹形。 下边缘具有位于整个上边缘的前方的外部部分。

公开(公告)号：US08295475B2

公开(公告)日：2012-10-23

申请号：US11332500

申请日：2006-01-13

申请人： Qin Li ,  Chao He ,  Wei-Ge Chen ,  Mu Han

发明人： Qin Li ,  Chao He ,  Wei-Ge Chen ,  Mu Han

IPC分类号： H04M9/08

CPC分类号： H04M9/082

摘要： The quality and robustness of audio echo cancellation is enhanced by selectively applying glitch recovery processes based on a quality measurement of the relative offset between capture and render audio streams. For example, large and small glitch detection is enabled for low relative offset variance; large glitch detection is enabled in a medium range of relative offset variance; and neither enabled at high variance. Further, a fast glitch recovery process suspends updating the adaptive filter coefficients of the audio echo cancellation while buffers are re-aligned to recover from the glitch, so as to avoid resetting the adaptive filter. When clock drift exists between capture and render audio streams, a multi-step compensation method is applied to improve AEC output quality in case the drifting rate is low; and a resampler is used to compensate the drift in case the drifting rate is high. An anti-clipping process detects clipping of the signals, and also suspends adaptive filter updating during clipping.

摘要翻译： 通过基于捕获和渲染音频流之间的相对偏移的质量测量来选择性地应用毛刺恢复过程来增强音频回声消除的质量和鲁棒性。 例如，对于低相对偏移方差，启用大的和小的毛刺检测; 在相对偏移方差的中等范围内启用大毛刺检测; 并且在高方差时都不启用。 此外，快速毛刺恢复处理暂停更新音频回声消除的自适应滤波器系数，同时缓冲器被重新对准以从毛刺恢复，以避免复位自适应滤波器。 当捕获和渲染音频流之间存在时钟漂移时，应用多步补偿方法来提高漂移率低的AEC输出质量; 并且在漂移速率高的情况下使用重采样器来补偿漂移。 反剪辑过程检测信号的剪辑，并且还可以在剪辑期间暂停自适应滤波器更新。

公开(公告)号：US20120163615A1

公开(公告)日：2012-06-28

申请号：US13411865

申请日：2012-03-05

申请人： Qin Li ,  Wei-ge Chen ,  Chao He

发明人： Qin Li ,  Wei-ge Chen ,  Chao He

IPC分类号： G10K11/16

CPC分类号： H04M9/082

摘要： A communications device is presented for providing bi-directional audio communications between a near-end user and a far-end user via a bidirectional communications channel. The communications device includes an adaptive echo canceller receiving a near-end audio signal and a far-end audio signal and providing an echo-canceled near-end audio signal for transmission to the far-end user via the communications channel. The adaptive echo canceller includes a first bank of analysis filters for filtering the near-end audio signal, a second bank of analysis filters for filtering the far-end audio signal, and a bank of synthesis filters for filtering sub-band echo-canceled signals generated within the adaptive echo canceller. The first and second filter banks have a frequency response optimized to reduce echo residual gain.

摘要翻译： 呈现通信设备，用于经由双向通信信道在近端用户和远端用户之间提供双向音频通信。 通信设备包括接收近端音频信号和远端音频信号的自适应回波消除器，并提供回波消除的近端音频信号，以经由通信信道传输给远端用户。 自适应回波消除器包括用于滤波近端音频信号的第一组分析滤波器，用于滤波远端音频信号的第二组分析滤波器，以及用于滤波子带回波消除信号的一组合成滤波器 在自适应回波消除器内产生。 第一和第二滤波器组具有优化的频率响应以减少回波残余增益。

公开(公告)号：USD652020S1

公开(公告)日：2012-01-10

申请号：US29378329

申请日：2010-11-02

申请人： Yves Albert Behar ,  Gabriel J. Lamb ,  Qin Li

设计人： Yves Albert Behar ,  Gabriel J. Lamb ,  Qin Li