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    • 2. 发明申请
    • Suppression of Acoustic Feedback in Voice Communications
    • 抑制语音通信中的声学反馈
    • US20070165880A1
    • 2007-07-19
    • US11275414
    • 2005-12-29
    • Wei ZhongChao HeAnton KrantzQin Li
    • Wei ZhongChao HeAnton KrantzQin Li
    • H04B15/00
    • H04M9/08H04M1/20H04M1/2535H04M1/6033H04M9/082
    • Suppressing one or more frequency ranges of a signal prevents the occurrence of feedback in a voice data communications application. A system recognizes a frequency range in a signal where feedback occurs, or anticipates a frequency range where feedback is anticipated. The signal includes a signal the input system generates or that the output system renders. The system suppresses the signal in the frequency range by disregarding one or more sampling bits representing the frequency range, or by applying one or more filters to attenuate or eliminate the signal in the frequency range. The system may monitor the signal to identify feedback resulting in different or additional frequency ranges and suppress the signal in the different or additional frequency ranges to prevent feedback from occurring.
    • 抑制信号的一个或多个频率范围阻止语音数据通信应用中的反馈的发生。 系统识别发生反馈的信号中的频率范围,或者预期预期反馈的频率范围。 信号包括输入系统产生的信号或输出系统呈现的信号。 该系统通过忽略表示频率范围的一个或多个采样位,或通过施加一个或多个滤波器来衰减或消除频率范围内的信号来抑制频率范围内的信号。 该系统可以监视信号以识别导致不同或附加频率范围的反馈,并且抑制不同或附加频率范围内的信号以防止发生反馈。
    • 6. 发明申请
    • Multimedia communications using preferred devices
    • 使用首选设备的多媒体通信
    • US20080126549A1
    • 2008-05-29
    • US11594359
    • 2006-11-07
    • Niraj KhanchandaniAnton Krantz
    • Niraj KhanchandaniAnton Krantz
    • G06F15/16
    • H04L67/303H04L65/1059H04L65/1069H04L65/80H04L69/24
    • Aspects of the present invention are directed at allowing users to establish a multimedia network session in which each user is allowed to employ multiple computing devices to exchange data. In this regard, a method is provided for collecting control information from at least two local computing devices associated with the first user that will participate in the network session. Then, an invitation message with the collected control information is sent to a computing device associated with a second user. In response, control information collected from one or more computing devices associated with the second user are obtained. The obtained control information is distributed to the appropriate local computing devices associated with the first user. As a result of exchanging control information in this way, a multimedia network session that allows users to employ a plurality of computing devices may be established.
    • 本发明的方面涉及允许用户建立多媒体网络会话,其中允许每个用户使用多个计算设备来交换数据。 在这方面,提供了一种用于从与将参与网络会话的第一用户相关联的至少两个本地计算设备收集控制信息的方法。 然后,将具有收集的控制信息的邀请消息发送到与第二用户相关联的计算设备。 作为响应,获得从与第二用户相关联的一个或多个计算设备收集的控制信息。 获得的控制信息被分发到与第一用户相关联的适当的本地计算设备。 作为以这种方式交换控制信息的结果,可以建立允许用户使用多个计算设备的多媒体网络会话。
    • 7. 发明申请
    • Efficient formation of ad hoc networks
    • 有效形成自组织网络
    • US20070002783A1
    • 2007-01-04
    • US11172154
    • 2005-06-30
    • Anton KrantzAbhishek Abhishek
    • Anton KrantzAbhishek Abhishek
    • H04B7/00
    • H04W84/18H04W8/26H04W28/18H04W48/16
    • An ad hoc network identifier may be received, for example, at an ad hoc network convergence module. One or more ad hoc network parameters may be generated as a function of the ad hoc network identifier. Each of a group of computers attempting to form an ad hoc network identified by the ad hoc network identifier may generate the one or more ad hoc network parameters. Two or more of the group of computers may perform an ad hoc network formation protocol parameterized with the generated one or more ad hoc network parameters. An instruction to join the network may be received, for example, at a networking service. If it is detected that the network is an ad hoc network, an ad hoc network address acquisition mode featuring accelerated ad hoc network address acquisition may be activated. Efficient formation of the ad hoc network may thus be facilitated.
    • 可以例如在自组织网络会聚模块处接收自组织网络标识符。 作为自组织网络标识符的函数,可以生成一个或多个自组织网络参数。 尝试形成由自组织网络标识符标识的自组织网络的一组计算机中的每一个可以生成一个或多个自组织网络参数。 该组计算机中的两个或更多个可以执行用所生成的一个或多个自组织网络参数参数化的自组织网络形成协议。 可以例如在网络服务处接收到加入网络的指令。 如果检测到网络是自组织网络,则可以激活特征加速自组织网络地址获取的自组织网络地址获取模式。 因此可以有助于有效地形成自组织网络。
    • 9. 发明授权
    • Synchronizing media streams across multiple devices
    • 跨多个设备同步媒体流
    • US07953118B2
    • 2011-05-31
    • US11608714
    • 2006-12-08
    • Anton KrantzNiraj Khanchandani
    • Anton KrantzNiraj Khanchandani
    • H04J3/06
    • H04L65/4015H04L65/604H04L65/608H04L65/80H04Q3/0025
    • Aspects of the present invention are directed at establishing a multimedia network session in which the transmission of media streams is synchronized. In one embodiment, a method is provided for synchronizing incoming audio and video streams. The method includes establishing a communication channel between a first computing device that is receiving an incoming audio stream with the second computing device that is receiving an incoming video stream. Once the communication channel is established, the current network conditions that describe attributes of the incoming audio stream are obtained by the first computing device. Then, the delay in the incoming audio stream is calculated. When the delay is known, the method causes the incoming video stream to be delayed to match the delay in the incoming audio stream.
    • 本发明的方面涉及建立媒体流的传输同步的多媒体网络会话。 在一个实施例中,提供了一种用于同步输入音频和视频流的方法。 该方法包括在正在接收输入音频流的第一计算设备与正在接收输入视频流的第二计算设备之间建立通信信道。 一旦建立通信信道,则描述输入音频流的属性的当前网络条件由第一计算设备获得。 然后,计算输入音频流中的延迟。 当延迟已知时,该方法使得输入视频流被延迟以匹配输入音频流中的延迟。