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    • 6. 发明申请
    • MECHANISM FOR DYNAMIC SIGNALING OF ENCODER CAPABILITIES
    • 编码器功能动态信号的机制
    • US20130046534A1
    • 2013-02-21
    • US13588445
    • 2012-08-17
    • Rafi RabipourChung-Cheung ChuDaniel Cohn
    • Rafi RabipourChung-Cheung ChuDaniel Cohn
    • G10L19/12
    • H04M7/0072G10L19/00H04L65/1059H04L65/608H04W28/18H04W88/181
    • The present disclosure provides systems and methods for dynamically signaling encoder capabilities of vocoders of corresponding communication nodes. In one embodiment, during a call between a first communication node and a second communication node, a control node (e.g., base station controller or mobile switching center) for the first communication node sends capability information for a voice encoder of a vocoder of the first communication node to a control node for the second communication node. As a result, the second communication node is enabled to select and request a preferred encoder mode for the voice encoder of the vocoder of the first communication node based on the capabilities of the voice encoder of the vocoder of the first communication node.
    • 本公开提供用于动态地信令相应通信节点的声码器的编码器能力的系统和方法。 在一个实施例中,在第一通信节点和第二通信节点之间的呼叫期间,用于第一通信节点的控制节点(例如,基站控制器或移动交换中心)发送用于第一通信节点的声码器的语音编码器的能力信息 通信节点到第二通信节点的控制节点。 结果,第二通信节点能够基于第一通信节点的声码器的语音编码器的能力来选择并请求第一通信节点的声码器的语音编码器的优选编码器模式。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR TIME ALIGNMENT ALONG A MULTI-NODE COMMUNICATION LINK
    • 多节点通信链路上时间对齐的方法与装置
    • US20090046698A1
    • 2009-02-19
    • US11839861
    • 2007-08-16
    • Chung Cheung CHURafi Rabipour
    • Chung Cheung CHURafi Rabipour
    • H04J3/06
    • H04L12/66H04N21/2335H04N21/23805H04N21/6181H04N21/64307H04N21/64322
    • A network entity, which comprises an input configured to receive from an upstream network entity a stream of first media data elements; an output configured to release towards a downstream network entity a stream of second media data elements; a processing engine configured to effect processing tasks on the first media data elements, thereby to generate the second media data elements, the processing tasks being effected in a set of processing intervals; and a control entity. The control entity is configured for receiving a request for a first phase adjustment from the downstream network entity; modifying the set of processing intervals in which are effected the processing tasks in an attempt to accommodate the first phase adjustment; determining a second phase adjustment based on arrival characteristics of the first media data elements and the modified set of processing intervals; and releasing towards the upstream network entity a request for the second phase adjustment.
    • 网络实体,其包括被配置为从上游网络实体接收第一媒体数据元素流的输入; 被配置为向下游网络实体释放第二媒体数据元素流的输出; 处理引擎被配置为对所述第一媒体数据元素执行处理任务,从而生成所述第二媒体数据元素,所述处理任务在一组处理间隔中进行; 和控制实体。 控制实体被配置为从下游网络实体接收对第一阶段调整的请求; 修改处理间隔的集合,以试图适应第一阶段调整; 基于所述第一媒体数据元素的到达特性和所述经修改的处理间隔集确定第二相位调整; 向上游网络实体发布第二阶段调整请求。
    • 9. 发明授权
    • Methods and apparatus for echo suppression
    • 用于回波抑制的方法和装置
    • US6011846A
    • 2000-01-04
    • US881062
    • 1997-06-24
    • Rafi RabipourDominic HoMajid FoodeeiMadeleine Saikaly
    • Rafi RabipourDominic HoMajid FoodeeiMadeleine Saikaly
    • G10L21/02H04B3/20H04B7/015G10L9/00
    • H04B7/015H04B3/20G10L2021/02082
    • In methods and apparatus for suppressing echo of a far end signal encoded using LPC-based compression in a near end signal encoded using LPC-based compression, parameters of each frame of the near end encoded signal are processed without synthesizing a speech signal from the near end encoded signal to determine whether sufficient echo to merit echo suppression is present in the frame. Upon determining that insufficient echo to merit echo suppression is present in the frame, the parameters of the frame are passed unmodified. Upon determining that sufficient echo to merit echo suppression is present in said frame, the parameters of the frame are modified without synthesizing a speech signal to suppress echo in the frame. The methods and apparatus are particularly suitable in codec bypass applications.
    • 在使用基于LPC的压缩编码的近端信号中抑制使用基于LPC的压缩编码的远端信号的回波的方法和装置中,处理近端编码信号的每帧的参数,而不从近端 结束编码信号以确定帧中是否存在足以有效回波抑制的回波。 在确定帧中存在不足以获得回波抑制的回波的情况下,帧的参数未被修改。 在确定在所述帧中存在足够的回波以获得回波抑制的情况下,修改帧的参数而不合成语音信号以抑制帧中的回波。 该方法和装置特别适用于编解码器旁路应用。