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    • 2. 发明授权
    • Simple adaptive jitter buffering algorithm for network nodes
    • 网络节点的简单自适应抖动缓冲算法
    • US08254376B2
    • 2012-08-28
    • US12811667
    • 2008-01-25
    • Arto Juhani Mahkonen
    • Arto Juhani Mahkonen
    • H04L12/66
    • H04L47/10H04L47/2416H04L47/283H04L47/30
    • A method of dynamically adjusting the buffer delay of an adaptive jitter buffer of a network node receiving packets of a media stream from a packet switched network. The method comprises inserting packets arriving to the network node into the jitter buffer and executing a jitter buffering procedure once every Trepin, wherein Trepin is equal to the jitter buffer play-out interval. Executing the jitter buffer procedure involves updating a jitter protection time, Tjit, wherein Tjit defines a current target value for the maximum buffering delay, on the basis of the variation of the number of pending packets, N in the jitter buffer.
    • 一种动态地调整从分组交换网络接收媒体流的分组的网络节点的自适应抖动缓冲器的缓冲器延迟的方法。 该方法包括将到达网络节点的分组插入到抖动缓冲器中,并且每个Trepin执行一次抖动缓冲过程,其中Trepin等于抖动缓冲器播放间隔。 基于抖动缓冲器中未决数据包数目N的变化,执行抖动缓冲程序涉及更新抖动保护时间Tjit,其中Tjit定义最大缓冲延迟的当前目标值。
    • 6. 发明授权
    • Telephony content signal discrimination
    • 电话内容信号辨别
    • US08407044B2
    • 2013-03-26
    • US13126894
    • 2008-10-30
    • Arto Juhani Mahkonen
    • Arto Juhani Mahkonen
    • G10L11/06G10L19/00
    • G10L25/78
    • A method for discriminating a telephony content signal into a first category or a second category is described. The method comprises a filtering procedure for obtaining from the telephony content signal a band signal set comprising one or more band signals, each band signal being associated with a respective frequency band at least one of said band signals being a sub-band signal (n) associated with a sub-band of an overall frequency band of the telephony content signal. Furthermore a determination procedure is provided for determining a band signal variation value (LLn) and a band signal strength value (TLn) for each band signal (n) of said band signal set. Finally, a discrimination procedure discriminates whether the telephony content signal is of the first category or of the second category. The discrimination procedure comprises one or both of an unconditional and a conditional step for evaluating a relationship of the band signal variation value (LLn) and said band signal strength value (TLn) for said sub-band signal (n).
    • 描述用于将电话内容信号识别为第一类别或第二类别的方法。 该方法包括用于从电话内容信号获得包括一个或多个频带信号的频带信号组的滤波过程,每个频带信号与相应频带相关联,所述频带信号中的至少一个是子带信号(n) 与电话内容信号的总频带的子带相关联。 此外,提供确定程序以确定对于所述频带信号组的每个频带信号(n)的频带信号变化值(LLn)和频带信号强度值(TLn)。 最后,判别程序判断电话内容信号是否是第一类别或第二类别。 鉴别过程包括用于评估频带信号变化值(LLn)与所述子带信号(n)的所述频带信号强度值(TLn)的关系的无条件和条件步骤中的一个或两个。
    • 8. 发明申请
    • Telephony Content Signal Discrimination
    • 电话内容信号歧视
    • US20110249809A1
    • 2011-10-13
    • US13126894
    • 2008-10-30
    • Arto Juhani Mahkonen
    • Arto Juhani Mahkonen
    • H04M3/22
    • G10L25/78
    • A method for discriminating a telephony content signal into a first category or a second category is described. The method comprises a filtering procedure for obtaining from the telephony content signal a band signal set comprising one or more band signals, each band signal being associated with a respective frequency band at least one of said band signals being a sub-band signal (n) associated with a sub-band of an overall frequency band of the telephony content signal. Furthermore a determination procedure is provided for determining a band signal variation value (LLn) and a band signal strength value (TLn) for each band signal (n) of said band signal set. Finally, a discrimination procedure discriminates whether the telephony content signal is of the first category or of the second category. The discrimination procedure comprises one or both of an unconditional and a conditional step for evaluating a relationship of the band signal variation value (LLn) and said band signal strength value (TLn) for said sub-band signal (n).
    • 描述用于将电话内容信号识别为第一类别或第二类别的方法。 该方法包括用于从电话内容信号获得包括一个或多个频带信号的频带信号组的滤波过程,每个频带信号与相应频带相关联,所述频带信号中的至少一个是子带信号(n) 与电话内容信号的总频带的子带相关联。 此外,提供确定程序以确定对于所述频带信号组的每个频带信号(n)的频带信号变化值(LLn)和频带信号强度值(TLn)。 最后,判别程序判断电话内容信号是否是第一类别或第二类别。 鉴别过程包括用于评估频带信号变化值(LLn)与所述子带信号(n)的所述频带信号强度值(TLn)的关系的无条件和条件步骤之一或两者。
    • 9. 发明申请
    • Method and Device for Transport Delay Analysis
    • 运输延迟分析方法与装置
    • US20100322084A1
    • 2010-12-23
    • US12866515
    • 2008-02-07
    • Arto Juhani Mahkonen
    • Arto Juhani Mahkonen
    • H04L12/26
    • H04L43/0852H04L43/087H04L43/106H04L45/3065
    • The present invention relates to a method and a device for analyzing transport delay between a sender device and a receiver device in a communication system. In particular, the present invention relates to a method for estimating transport delay in a communication system comprising a sender device dividing a frame into segments, wherein each segment is transmitted in a packet with a send time stamp to a receiver device, the method comprising the steps of: receiving and time stamping packets with a receipt time stamp; identifying the relative-position of packets in a frame; calculating the offset of one or more packets in a frame, and performing transport delay analysis based on the send time stamp, the receipt time stamp, and the calculated offset of the one or more packets.
    • 本发明涉及用于分析通信系统中的发送者设备和接收设备之间的传输延迟的方法和设备。 特别地,本发明涉及一种用于估计通信系统中的传输延迟的方法,包括将帧划分成段的发送器设备,其中每个段以具有发送时间戳的分组被发送到接收机设备,该方法包括: 步骤:接收和时间戳具有收据时间戳的数据包; 识别帧中的分组的相对位置; 计算帧中的一个或多个分组的偏移量,并且基于发送时间戳,接收时间戳和所计算的一个或多个分组的偏移来执行传输延迟分析。