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    • 22. 发明授权
    • System and method for providing encryption for rerouting of real time multi-media flows
    • 用于为实时多媒体流重新路由提供加密的系统和方法
    • US07536546B2
    • 2009-05-19
    • US09941229
    • 2001-08-28
    • Patrick J. MeLampyEphraim W. DobbinsStephen E. NortonRobert F. Penfield
    • Patrick J. MeLampyEphraim W. DobbinsStephen E. NortonRobert F. Penfield
    • H04L9/00H04L29/06
    • H04L63/0428H04L29/06027H04L47/34H04L65/1006H04L65/608H04L65/80
    • A system for providing encryption for the rerouting of multi-media data flow packets is disclosed. Generally, a first endpoint is connected to a second endpoint, wherein the first endpoint comprises a transceiver, encryption software stored within the first endpoint defining functions to be performed by the first endpoint, and a processor. The processor is configured by the encryption software to perform the steps of: assigning a sequence number to a first multi-media data flow packet received by a first endpoint, wherein the first multi-media data flow packet is within a series of multi-media data flow packets; pseudo-randomly shuffling the sequence number of the first multi-media data flow packet; and, transmitting the pseudo-randomly shuffled sequence number to a second endpoint. These steps may be performed by a programmed controller, or other hardware, instead of, or in addition to, being performed in accordance with software.
    • 公开了一种用于为多媒体数据流分组的重新路由提供加密的系统。 通常,第一端点连接到第二端点,其中第一端点包括收发器,存储在第一端点内的加密软件,其定义要由第一端点执行的功能,以及处理器。 处理器由加密软件配置以执行以下步骤:将序列号分配给由第一端点接收的第一多媒体数据流分组,其中第一多媒体数据流分组在一系列多媒体 数据流包; 伪随机混洗第一个多媒体数据流包的序列号; 以及将所述伪随机洗牌序列号发送到第二端点。 这些步骤可以由编程的控制器或其他硬件来执行,而不是或根据软件执行,或者除了被执行之外。
    • 23. 发明授权
    • System and method for determining flow quality statistics for real-time transport protocol data flows
    • 用于确定实时传输协议数据流的流量质量统计的系统和方法
    • US07362707B2
    • 2008-04-22
    • US09911256
    • 2001-07-23
    • Patrick J. MeLampyEphraim W. DobbinsStephen E. NortonRobert F. Penfield
    • Patrick J. MeLampyEphraim W. DobbinsStephen E. NortonRobert F. Penfield
    • H04L12/26
    • H04L65/80H04L29/06027H04L29/12018H04L41/0213H04L41/5009H04L41/5087H04L61/10H04L65/1006H04L65/608H04L69/28H04M7/006
    • A system and method for determining flow quality statistics for real-time transport protocol (RTP) data flows is disclosed. Generally, a first endpoint is connected to a second endpoint, wherein the first endpoint comprises a transceiver, software stored within the first endpoint defining functions to be performed by the first endpoint, and a processor. The processor is configured by the software to perform the steps of, determining latency for the RTP data flows, determining jitter for the RTP data flows, and/or determining lost packets for the RTP data flows. Latency is determined by the first endpoint transmitting a test data packet to the second endpoint; the second endpoint looping the test data packet back to the first endpoint; comparing when the test data packet was received by the first endpoint to when the test data packet was sent to the second endpoint, to determine a round trip time; and, dividing the round trip time in two, resulting in the latency. Jitter is determined by beginning a timer when a first data packet of an RTP data flow is received by the first endpoint; stopping the timer when a second data packet of the RTP data flow is received by the first endpoint; and, adding measured time from the beginning of the timer to the stopping of the timer to an aggregate to obtain the jitter for the RTP data flow. Lost packets are determined by determining a sequence number of a received RTP data packet within the RTP data flow; storing the determined sequence number; calculating whether the determined sequence number sequentially falls within a numerical order; and, if the sequence number of the received RTP data packet does not sequentially fall within the numerical order, storing the sequence number as a missed RTP data packet.
    • 公开了一种用于确定实时传输协议(RTP)数据流的流量统计的系统和方法。 通常,第一端点连接到第二端点,其中第一端点包括收发器,存储在第一端点内的软件,其定义要由第一端点执行的功能,以及处理器。 处理器由软件配置以执行以下步骤:确定RTP数据流的等待时间,确定RTP数据流的抖动,和/或确定RTP数据流的丢包。 延迟由第一端点向第二端点发送测试数据分组确定; 第二端点将测试数据分组循环回到第一端点; 比较当测试数据分组被第一端点接收到测试数据分组被发送到第二端点时,确定往返时间; 并将往返时间划分为两次,导致延迟。 当RTP数据流的第一数据包被第一端点接收时,通过开始定时器来确定抖动; 当第一端点接收到RTP数据流的第二数据分组时停止定时器; 并且从计时器的开始添加测量时间到将定时器停止到聚合以获得RTP数据流的抖动。 通过确定RTP数据流中接收的RTP数据分组的序列号来确定丢失分组; 存储确定的序列号; 计算所确定的序列号是否顺序地落在数字顺序内; 并且如果所接收的RTP数据分组的序列号不顺序地落入数字顺序中,则将序列号存储为丢失的RTP数据分组。
    • 25. 发明授权
    • Real-time call rating and debiting system and method for multiple calls
    • 多次通话的实时通话评级和借记系统及方法
    • US06480591B1
    • 2002-11-12
    • US09516316
    • 2000-03-01
    • Robert F. PenfieldPatrick J. MeLampy
    • Robert F. PenfieldPatrick J. MeLampy
    • H04M1700
    • H04M15/775H04M15/00H04M15/47H04M15/8228H04M15/83H04M15/88H04M17/00H04M17/20H04M17/201H04M2017/22H04M2215/0116H04M2215/0148H04M2215/7277H04M2215/7833H04M2215/82
    • In general, a call rating and debiting system provides a way of rating and debiting complex debit card calls. The system estimates the time when a subscriber's balance will expire by using total charges for all calls for a given time period. Estimation is performed by accounting for time already paid for, reserving a minimum continuation time for adding a new call, reserving time for all calls up to a latest paid for time, estimating remaining time before a subscriber's balance reaches zero, based upon a remaining balance achieved after the system accounts for time already paid for, reserving a minimum continuation time for adding a new call and reserving time for all calls up to the latest paid for time, and setting a time limit for all calls in accordance with any portion of the aforementioned. An alternative embodiment of the system allows a subscriber's account balance to be automatically increased after the balance decreases past a predefined minimum.
    • 一般来说,通话额度和借记系统提供了一种评级和借记复杂借记卡通话的方式。 系统通过在给定时间段内使用所有呼叫的总费用来估计用户余额到期的时间。 通过计算已经支付的时间,保留添加新呼叫的最小持续时间,为所有呼叫预留时间到最新支付的时间,基于剩余余额估计用户余额达到零之前的剩余时间来执行估计 在系统占用已经支付的时间之后实现,预留最短延长时间以添加新的呼叫,并为所有呼叫预留时间到达最新支付的时间,并根据任何部分设置所有呼叫的时间限制 上述。 系统的替代实施例允许在平衡减少超过预定义的最小值之后自动增加订户的帐户余额。