Method and apparatus of RTP control protocol (RTCP) processing in real-time transport protocol (RTP) intermediate systems
    1.
    发明申请
    Method and apparatus of RTP control protocol (RTCP) processing in real-time transport protocol (RTP) intermediate systems 审中-公开
    实时传输协议(RTP)中间系统的RTP控制协议(RTCP)处理方法和装置

    公开(公告)号:US20090135735A1

    公开(公告)日:2009-05-28

    申请号:US12082021

    申请日:2008-04-08

    IPC分类号: H04L12/56 G06F11/00

    CPC分类号: H04L65/608

    摘要: Media processing of real-time protocol (RTP) packets used in time sensitive applications makes efficient use of network resources, e.g., by dropping or resizing the packets, but hinders measuring and reporting end-to-end reception quality. Because media processing causes a difference between what is sent and received, end-to-end reception quality cannot be measured validly without accounting for this difference. Accordingly, a method and corresponding apparatus are provided to track changes to RTP packets of an RTP session caused by media processing, modify RTP packet information of the RTP packets based on the tracked changes, correct RTP control protocol (RTCP) packets corresponding to the RTP session based on the tracked changes, the corrected RTCP packets being a measure of the end-to-end reception quality of the RTP session, and report the end-to-end reception quality of the RTP session by forwarding the corrected RTCP packets. Thus, end-to-end reception quality can be validly measured and reported.

    摘要翻译: 在时间敏感应用中使用的实时协议(RTP)分组的媒体处理使得有效利用网络资源,例如通过丢弃或调整分组大小,但是阻碍测量和报告端到端的接收质量。 由于媒体处理造成发送和接收的差异,端到端接收质量无法有效测量,而不考虑这种差异。 因此,提供了一种方法和相应的装置来跟踪由媒体处理引起的RTP会话的RTP分组的变化,基于跟踪的改变来修改RTP分组的RTP分组信息,对应于RTP的正确的RTP控制协议(RTCP)分组 会话基于跟踪的变化,校正的RTCP分组是RTP会话的端对端接收质量的量度,并且通过转发校正的RTCP分组来报告RTP会话的端到端接收质量。 因此,可以有效地测量和报告端到端的接收质量。

    Method and apparatus of RTP control protocol (RTCP) processing in real-time transport protocol (RTP) intermediate systems
    2.
    发明申请
    Method and apparatus of RTP control protocol (RTCP) processing in real-time transport protocol (RTP) intermediate systems 审中-公开
    实时传输协议(RTP)中间系统的RTP控制协议(RTCP)处理方法和装置

    公开(公告)号:US20090135724A1

    公开(公告)日:2009-05-28

    申请号:US11986983

    申请日:2007-11-27

    IPC分类号: H04L12/26

    摘要: Media processing of real-time protocol (RTP) packets used in Voice over Internet Protocol (VoIP) and other time sensitive applications makes efficient use of network resources, e.g., by dropping or changing the size of certain packets, but hinders measuring and reporting end-to-end reception quality. Because media processing changes RTP packets between a sender and receiver, causing a difference between what is sent and received, end-to-end reception quality cannot be measured validly without accounting for these changes. Accordingly, a method and corresponding apparatus are provided to track changes to RTP packets of an RTP session caused by media processing of the RTP packets, modify RTP packet information of the RTP packets based on the tracked changes, correct RTP control protocol (RTCP) packets corresponding to the RTP session based on the tracked changes, the corrected RTCP packets being a measure of the end-to-end reception quality of the RTP session, and report the end-to-end reception quality of the RTP session by forwarding the corrected RTCP packets.

    摘要翻译: 媒体处理通过互联网协议语音(VoIP)和其他时间敏感应用程序使用的实时协议(RTP)数据包可以有效利用网络资源,例如通过删除或更改某些数据包的大小,但阻碍测量和报告结束 端到端接收质量。 由于媒体处理改变发送方和接收方之间的RTP数据包,导致发送和接收之间的差异,端到端接收质量无法有效测量,而不考虑这些变化。 因此,提供了一种方法和相应的装置,以跟踪由RTP分组的媒体处理引起的RTP会话的RTP分组的改变,基于跟踪的改变修改RTP分组的RTP分组信息,修改RTP控制协议(RTCP)分组 对应于基于跟踪变化的RTP会话,校正的RTCP分组是RTP会话的端对端接收质量的量度,并且通过转发经修正的RTP会话来报告RTP会话的端到端接收质量 RTCP数据包。

    Method and apparatus for modifying an encoded signal for voice quality enhancement
    3.
    发明授权
    Method and apparatus for modifying an encoded signal for voice quality enhancement 有权
    用于修改用于语音质量增强的编码信号的方法和装置

    公开(公告)号:US08874437B2

    公开(公告)日:2014-10-28

    申请号:US11165599

    申请日:2005-06-22

    IPC分类号: G10L21/00 G10L19/083

    摘要: Adaptive Gain Control (AGC) is performed directly in a coded domain. A Coded Domain Adaptive Gain Control (CD-AGC) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-VQE system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal. In a decoded state, the second encoded signal approximates a target signal that is a function of two signals, including the first encoded signal and a third encoded signal, in at least a partially decoded states. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-AGC system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.

    摘要翻译: 自适应增益控制(AGC)直接在编码域中执行。 编码域自适应增益控制(CD-AGC)系统修改第一编码信号的至少一个参数,导致相应的修改参数。 CD-VQE系统用修改的参数替换第一编码信号的参数,从而产生第二编码信号。 在解码状态下,第二编码信号在至少部分解码状态下近似作为包括第一编码信号和第三编码信号的两个信号的函数的目标信号。 因此,第一编码信号不必经历中间解码/重编码处理,这可能降低总体语音质量。 不需要完全重新编码所需的计算资源。 系统的整体延迟最小化。 CD-AGC系统可以用于信号在诸如第三代(3G)无线网络的编码域中传送的任何网络中。

    Method and apparatus for synchronizing timing of signal packets
    4.
    发明申请
    Method and apparatus for synchronizing timing of signal packets 审中-公开
    用于同步信号分组定时的方法和装置

    公开(公告)号:US20090257455A1

    公开(公告)日:2009-10-15

    申请号:US12082890

    申请日:2008-04-15

    IPC分类号: H04J3/06

    摘要: In some communications systems, unsynchronized near-end and far-end packets of communications signals can reduce or impair performance of processing of packets, such as to the case of Coded Domain Media Quality Enhancement. Therefore, a system may synchronize the incoming signals to enhance quality. A relative delay determination module according to an example embodiment of this invention determines a synchronization and relative delay between packets belonging to different packet streams arriving at a network node in a packet-based network by computing a time synchronization parameter based on a time reference of timestamps of the signals and reports the relative delay to a module making use of the relative delay such as a voice quality enhancement or an echo control module. By synchronizing the packets at the location within the network, source clocks at end or edge nodes of the network can operate with reduced synchronization, simplifying network operations and management thereof.

    摘要翻译: 在一些通信系统中,通信信号的不同步的近端和远端分组可以减少或削弱分组处理的性能,例如编码域媒体质量增强的情况。 因此,系统可以使输入信号同步以提高质量。 根据本发明的示例实施例的相对延迟确定模块通过基于时间戳的时间参考计算时间同步参数来确定属于基于分组的网络中的网络节点处的不同分组流的分组之间的同步和相对延迟 的信号,并将相对延迟报告给使用诸如语音质量增强或回波控制模块之类的相对延迟的模块。 通过在网络内的位置同步数据包,网络的端点或边缘节点的源时钟可以减少同步操作,简化网络操作及其管理。

    Echo detection and delay estimation using a pattern recognition approach and cepstral correlation
    5.
    发明申请
    Echo detection and delay estimation using a pattern recognition approach and cepstral correlation 审中-公开
    使用模式识别方法和倒谱相关的回波检测和延迟估计

    公开(公告)号:US20070263851A1

    公开(公告)日:2007-11-15

    申请号:US11449478

    申请日:2006-06-07

    IPC分类号: H04M9/08

    CPC分类号: H04B3/23

    摘要: A method, apparatus, system, and program, for evaluating a call communicated between communicating devices through at least one communication path. The method comprises segmenting, into first segments, at least one first communication signal traveling from a first one of the communicating devices to a second one of the communicating devices through the at least one communication path, and segmenting, into second segments, at least one second communication signal traveling from the second one of the communicating devices to the first one of the communicating devices through the at least one communication path. The method also comprises determining predetermined call characteristics based on the first and second segments, and identifying whether an echo is present in the call based on a result of the determining.

    摘要翻译: 一种用于评估通过至少一个通信路径在通信设备之间传送的呼叫的方法,装置,系统和程序。 该方法包括:通过至少一个通信路径将至少一个从通信设备中的第一通信设备传送到通信设备的第二通信信号的至少一个第一通信信号分段成第二段,至少一个 第二通信信号通过至少一个通信路径从通信设备中的第二通信设备传送到通信设备的第一通信信号。 该方法还包括基于第一和第二段确定预定的呼叫特性,并且基于确定的结果来识别呼叫中是否存在回声。

    Cat window hammock
    6.
    外观设计

    公开(公告)号:USD1007067S1

    公开(公告)日:2023-12-05

    申请号:US29894149

    申请日:2023-06-07

    申请人: Peng Zhang

    设计人: Peng Zhang

    摘要: FIG. 1 is a front, right and top perspective view of a cat window hammock, showing my design.
    FIG. 2 is a rear, left and bottom perspective view thereof.
    FIG. 3 is a front elevation view thereof.
    FIG. 4 is a rear elevation view thereof.
    FIG. 5 is a left side elevation view thereof.
    FIG. 6 is a right side elevation view thereof.
    FIG. 7 is a top plan view thereof.
    FIG. 8 is a bottom plan view thereof; and,
    FIG. 9 is an enlarged view of detail 9 in FIG. 2.
    The broken lines depict portions of the cat window hammock that form no part of the claimed design.
    The dot-dash broken lines in FIGS. 2 and 9 depict the boundaries of the enlargements that form no part of the claimed design.

    Pet tunnel
    7.
    外观设计

    公开(公告)号:USD965924S1

    公开(公告)日:2022-10-04

    申请号:US29816972

    申请日:2021-11-26

    申请人: Peng Zhang

    设计人: Peng Zhang

    Sending a sensor node a request for sensor data that identifies another node to process the data

    公开(公告)号:US10834184B2

    公开(公告)日:2020-11-10

    申请号:US14412706

    申请日:2012-07-05

    申请人: Peng Zhang

    发明人: Peng Zhang

    IPC分类号: H04L29/08 H04W4/38 G06F9/50

    摘要: In accordance with an example embodiment of the present invention, there is provided an apparatus comprising at least one processor and computer program code, configured to cause the apparatus to at least transmit to a sensor node a request for processed sensor data, the request comprising an identity of a second node capable of processing sensor data, and receive a message enabling access to the processed sensor data, wherein the second node is comprised in the same peer network as the apparatus. The apparatus may also be configured to receive from the second node an indication that the second node has data processing capability it is willing to provide.

    Backpack with quick deploying body armor

    公开(公告)号:US10130160B1

    公开(公告)日:2018-11-20

    申请号:US15898907

    申请日:2018-02-19

    IPC分类号: A45F3/06 A45F4/02 F41H1/02

    摘要: A backpack with quick deploying body armor includes a backpack having a front compartment and rear compartment which has an opening on the top of the backpack; the opening can be closed by a flap which has open and closed positions; the flap can be locked to the top of the backpack. A rear ballistic panel is attached to the vertical face of the rear compartment. A front ballistic panel module has two connecting straps connecting to the bottom face of the rear compartment and two pulling straps. The front ballistic panel module has a storage position and deployed position. In the storage to position, the front ballistic panel is in the rear compartment and the pulling straps are attached to the shoulder straps of the backpack. In the deployed position, the front ballistic panel is out of the rear compartment and the pulling strap is fastened to the body of the wearer by connecting the end of the pulling strap.