公开(公告)号：US08503299B2

公开(公告)日：2013-08-06

申请号：US11432476

申请日：2006-05-12

申请人： Nimal Senarath ,  Paul Coverdale ,  Hongyi Li ,  Shalini Periyalwar ,  Koon Hoo Teo

发明人： Nimal Senarath ,  Paul Coverdale ,  Hongyi Li ,  Shalini Periyalwar ,  Koon Hoo Teo

IPC分类号： G01R31/08

CPC分类号： H04L47/14 ,  H04L47/10 ,  H04L47/50 ,  H04L47/564 ,  H04L49/205

摘要： A method and system for packet scheduling are provided. The method includes: the step of receiving an incoming packet; extracting packet identification information associated with the incoming packet, and assessing a delay budget for the incoming packet in dependence upon its arrival time and the associated information. The system includes: an input module for receiving an incoming packet, and extracting information associated with the incoming packet, and a module for assessing a delay budget for the incoming packet in dependence upon its arrival time and the associated information.

摘要翻译： 提供了一种用于分组调度的方法和系统。 该方法包括：接收进入分组的步骤; 提取与所述输入分组相关联的分组标识信息，以及根据其到达时间和相关信息来评估所述输入分组的延迟预算。 该系统包括：输入模块，用于接收输入分组，以及提取与输入分组相关联的信息;以及模块，用于根据其到达时间和相关信息来估计输入分组的延迟预算。

公开(公告)号：US20070019552A1

公开(公告)日：2007-01-25

申请号：US11432476

申请日：2006-05-12

申请人： Nimal Senarath ,  Paul Coverdale ,  Hongyi Li ,  Shalini Periyalwar ,  Koon Teo

发明人： Nimal Senarath ,  Paul Coverdale ,  Hongyi Li ,  Shalini Periyalwar ,  Koon Teo

IPC分类号： H04J1/16 ,  H04L12/56

CPC分类号： H04L47/14 ,  H04L47/10 ,  H04L47/50 ,  H04L47/564 ,  H04L49/205

摘要： A method and system for packet scheduling are provided. The method includes: the step of receiving an incoming packet; extracting packet identification information associated with the incoming packet, and assessing a delay budget for the incoming packet in dependence upon its arrival time and the associated information. The system includes: an input module for receiving an incoming packet, and extracting information associated with the incoming packet, and a module for assessing a delay budget for the incoming packet in dependence upon its arrival time and the associated information.

摘要翻译： 提供了一种用于分组调度的方法和系统。 该方法包括：接收进入分组的步骤; 提取与所述输入分组相关联的分组标识信息，以及根据其到达时间和相关信息来评估所述输入分组的延迟预算。 该系统包括：输入模块，用于接收输入分组，以及提取与输入分组相关联的信息;以及模块，用于根据其到达时间和相关信息来评估输入分组的延迟预算。

公开(公告)号：US06373842B1

公开(公告)日：2002-04-16

申请号：US09195400

申请日：1998-11-19

申请人： Paul Coverdale ,  Leo Strawczynski

发明人： Paul Coverdale ,  Leo Strawczynski

IPC分类号： H04L1256

CPC分类号： H04L1/1848 ,  H04L1/1812 ,  H04L1/1838 ,  H04W28/14 ,  H04W80/00

摘要： A high layer protocol organizes Unidirectional Streaming Services (USS) data into frames and said data is transmitted to the wireless user's terminal. The USS data is not delivered until a criteria is satisfied, e.g., the receive buffer is filled to an appropriate value. After the USS data is received, the receiver verifies the received frames. If an error is detected a message is sent from the wireless terminal to the server (providing the unidirectional streaming service) requesting retransmission of the corrupted frame. This is a form of ARQ protocol. If the retransmitted frame arrives prior to the time that frame needs to be delivered, the corrupted frame is replaced by the retransmitted frame. Otherwise, if the retransmitted frame is not received prior to the time that frame needs to be delivered, the corrupted frame is reconstructed. Any retransmitted frame which arrives too late is discarded. An additional benefit of the present invention is that since the frames are buffered prior to delivery, interpolation, as opposed to extrapolation, can be used to improve the reconstruction quality of the corrupted frame. This optional feature of the invention uses both the preceding and succeeding frames, which are available in the buffer, to provide a better estimate of the corrupted frame.

摘要翻译： 高层协议将单向流服务（USS）数据组织成帧，所述数据被传送到无线用户的终端。 在满足标准之前USS数据不被传送，例如，接收缓冲器被填充到适当的值。 在接收到USS数据之后，接收机验证接收到的帧。 如果检测到错误，则从无线终端向服务器（提供单向流服务）发送请求重发已损坏帧的消息。 这是一种ARQ协议的形式。 如果重传的帧在需要传送帧的时间之前到达，则被重新发送的帧被替换。 否则，如果在需要传送帧的时间之前没有接收到重传的帧，则重建损坏的帧。 任何到达太晚的重发帧被丢弃。 本发明的另外的好处在于，由于帧在传送之前被缓冲，所以与外推相反的内插可以用于改善损坏的帧的重建质量。 本发明的该可选特征使用在缓冲器中可用的前一帧和后续帧来提供对损坏帧的更好估计。

公开(公告)号：US20050114433A1

公开(公告)日：2005-05-26

申请号：US10721909

申请日：2003-11-26

申请人： Rafi Rabipour ,  Paul Coverdale

发明人： Rafi Rabipour ,  Paul Coverdale

IPC分类号： G06F15/16 ,  H04L29/06

CPC分类号： H04L65/4038 ,  H04L29/06027

摘要： A conference bridge adapter for processing data carried on a media path between, on the one hand, a conference bridge operative to communicate composite packets carrying media information and auxiliary information pertaining to the media information and, on the other hand, an endpoint characterized by an inability to exchange composite packets with the conference bridge. In one direction, a stream of composite packets is received from the bridge. An output media stream without auxiliary information is generated from the media information in each received composite packet. In the opposite direction, a stream of packets carrying only media information is received from the endpoint. Auxiliary information is derived from the media information and a stream of composite packets is generated by combining the media information and the auxiliary information. Thus, a media conference can be established between seemingly incompatible network elements.

摘要翻译： 一种用于处理媒体路径上承载的数据的会议桥适配器，一方面是可操作以传送携带媒体信息的复合分组的会议桥和与媒体信息有关的辅助信息，另一方面， 无法与会议桥交换复合数据包。 在一个方向上，从桥接收到复合数据包流。 从每个接收到的复合分组中的媒体信息生成没有辅助信息的输出媒体流。 在相反的方向，从端点接收到仅携带媒体信息的分组流。 从媒体信息导出辅助信息，并通过组合媒体信息和辅助信息来生成复合数据包流。 因此，可以在看似不兼容的网络元素之间建立媒体会议。

公开(公告)号：US06324515B1

公开(公告)日：2001-11-27

申请号：US09088895

申请日：1998-06-02

申请人： Rafi Rabipour ,  Paul Coverdale ,  William Navarro

发明人： Rafi Rabipour ,  Paul Coverdale ,  William Navarro

IPC分类号： G10L2104

CPC分类号： G10L19/00

摘要： This invention relates to a method and an apparatus for processing digital audio signals that may reduce the signal degradation occurring when the signal is exchanged between two communication terminals equipped with vocoders in a communication network. The solution proposed by this invention is to provide a communication terminal with a vocoder including a decoder section provided with a plurality of decoding units. A switch activates a selected one of the decoding units in dependence of the format of the compressed audio signal data frames received from a remote communication terminal. This system allows the communication terminal to support a number of different speech compression formals. In order to achieve simplicity and low cost, the communication terminal is provided with a single encoding unit. This results in an asymmetric arrangement where the communication terminal has a large number of decoding units than encoding units. The great majority of the speech compression algorithms deployed in wireless and Internet telephony standards have the property that their speech decoders are of far less computational complexity than their respective speech encoder. Therefore, a low-cost terminal can be produced which supports a low complexity speech encoder unit and a variety of speech decoder units.

摘要翻译： 本发明涉及一种用于处理数字音频信号的方法和装置，其可以减少在通信网络中配备声码器的两个通信终端之间交换信号时发生的信号劣化。 本发明提出的解决方案是提供一种具有声码器的通信终端，该声码器包括设置有多个解码单元的解码器部分。 开关根据从远程通信终端接收的压缩音频信号数据帧的格式来激活所选择的解码单元。 该系统允许通信终端支持多种不同的语音压缩形式。 为了实现简单性和低成本，通信终端设置有单个编码单元。 这导致非对称布置，其中通信终端具有比编码单元大的解码单元数量。 部署在无线和因特网电话标准中的绝大多数语音压缩算法具有这样的性质：它们的语音解码器的计算复杂度远远低于它们各自的语音编码器。 因此，可以制造支持低复杂性语音编码器单元和各种语音解码器单元的低成本终端。

公开(公告)号：US07619994B2

公开(公告)日：2009-11-17

申请号：US10721909

申请日：2003-11-26

申请人： Rafi Rapipour ,  Paul Coverdale

发明人： Rafi Rapipour ,  Paul Coverdale

IPC分类号： H04L12/16

CPC分类号： H04L65/4038 ,  H04L29/06027

摘要： A conference bridge adapter for processing data carried on a media path between, on the one hand, a conference bridge operative to communicate composite packets carrying media information and auxiliary information pertaining to the media information and, on the other hand, an endpoint characterized by an inability to exchange composite packets with the conference bridge. In one direction, a stream of composite packets is received from the bridge. An output media stream without auxiliary information is generated from the media information in each received composite packet. In the opposite direction, a stream of packets carrying only media information is received from the endpoint. Auxiliary information is derived from the media information and a stream of composite packets is generated by combining the media information and the auxiliary information. Thus, a media conference can be established between seemingly incompatible network elements.

摘要翻译： 一种用于处理媒体路径上承载的数据的会议桥适配器，一方面是可操作以传送携带媒体信息的复合分组的会议桥和与媒体信息有关的辅助信息，另一方面， 无法与会议桥交换复合数据包。 在一个方向上，从桥接收到复合数据包流。 从每个接收到的复合分组中的媒体信息生成没有辅助信息的输出媒体流。 在相反的方向，从端点接收到仅携带媒体信息的分组流。 从媒体信息导出辅助信息，并通过组合媒体信息和辅助信息来生成复合数据包流。 因此，可以在似乎不兼容的网络元素之间建立媒体会议。

公开(公告)号：US07515583B2

公开(公告)日：2009-04-07

申请号：US10810467

申请日：2004-03-26

申请人： Sejal Kamani ,  Paul Coverdale ,  Chi Wong ,  Ben Kwong

发明人： Sejal Kamani ,  Paul Coverdale ,  Chi Wong ,  Ben Kwong

IPC分类号： H04L12/66 ,  H04L5/14 ,  H04L12/56 ,  H04M1/64 ,  G06F15/173

CPC分类号： H04L43/50 ,  H04L12/5692 ,  H04L12/64 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/125 ,  H04L47/2416 ,  H04L47/283 ,  H04L47/70 ,  H04L47/801 ,  H04L47/805 ,  H04L47/822 ,  H04L47/829 ,  H04L65/1069 ,  H04L65/80 ,  H04L69/16 ,  H04L2012/6472 ,  H04L2012/6475 ,  H04L2012/6481 ,  H04M7/006 ,  H04Q3/0016 ,  H04Q3/66 ,  H04Q2213/13034 ,  H04Q2213/13097 ,  H04Q2213/13109 ,  H04Q2213/13141 ,  H04Q2213/13148 ,  H04Q2213/13166 ,  H04Q2213/13167 ,  H04Q2213/13204 ,  H04Q2213/13389

摘要： A method of connecting a telephone call through one of a plurality of networks where one of the plurality of networks is an internet protocol network is provided. A first factor for an acceptable quality of service level is received from a user. A second factor responsive to the quality of service for the internet protocol network is determined. The telephone call is connected through the internet protocol network if the second factor is greater than the first factor, otherwise, the telephone call is connected through one of the plurality of networks other than the internet protocol network.

摘要翻译： 提供一种通过多个网络中的一个网络连接电话呼叫的方法，其中多个网络中的一个是因特网协议网络。 从用户那里接收到可接受的服务质量水平的第一个因素。 确定响应于因特网协议网络的服务质量的第二个因素。 如果第二因素大于第一因素，则电话呼叫通过因特网协议网络连接，否则，电话呼叫通过互联网协议网络以外的多个网络之一连接。

公开(公告)号：US07076316B2

公开(公告)日：2006-07-11

申请号：US09859640

申请日：2001-05-18

申请人： Rafi Rabipour ,  Chung Cheung Chu ,  Paul Coverdale

发明人： Rafi Rabipour ,  Chung Cheung Chu ,  Paul Coverdale

IPC分类号： G06F17/00 ,  H04M1/24

CPC分类号： H04W88/181 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/80

摘要： A method and apparatus for controlling an operative setting of a communications link is provided. The communications link is capable of acquiring a plurality of operative settings. Audio quality in the communications link under different operative settings is compared and an operative setting is selected at least in part on the basis of this comparison. A control signal is sent to at least one component in the communications link to cause the communications link to attempt to acquire the selected setting.

公开(公告)号：US07006456B2

公开(公告)日：2006-02-28

申请号：US09986498

申请日：2001-11-09

申请人： Rafi Rabipour ,  Paul Coverdale ,  Paxton Smith

发明人： Rafi Rabipour ,  Paul Coverdale ,  Paxton Smith

IPC分类号： H04L12/16 ,  H04M3/42

CPC分类号： H04L65/605 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/103 ,  H04L65/104 ,  H04L65/4038 ,  H04L65/607 ,  H04W88/181

摘要： A conference bridge is provided for managing a conference between media signal sources generating media data packets conveying encoded media information and encoding type information. The media signal sources, in order to enter a conference, generate link messages including respective supported encoding types and transmit the link messages to the conference bridge. The conference bridge receives the link messages and processes them to derive a first common encoding type supported all media signal sources in the conference and a second encoding type supported a subset of media signal sources in the conference. The conference bridge generates link message reply signals conveying the first encoding type and the second encoding type the subset of media signal sources and conveying at least the first encoding type to the media signal sources other than the subset of all media signal sources. Each media signal source is responsive to the link message reply signal to render active at least the first encoding type and selectively render active the second encoding type.

公开(公告)号：US5995923A

公开(公告)日：1999-11-30

申请号：US883353

申请日：1997-06-26

申请人： Paul Mermelstein ,  Rafi Rabipour ,  William Navarro ,  Paul Coverdale

发明人： Paul Mermelstein ,  Rafi Rabipour ,  William Navarro ,  Paul Coverdale

IPC分类号： G10L19/02 ,  G10L19/14 ,  H03M7/30 ,  H04W88/18 ,  H03M9/00

CPC分类号： G10L19/16 ,  H04W88/181

摘要： In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem the invention provides a novel method and an apparatus for transmitting digitized voice signals in the wireless communications environment. The apparatus is capable of converting a compressed speech signal from one format to another format via an intermediate common format, thus avoiding the necessity to successively de-compress voice data to a PCM type digitization and then recompress the voice data.

摘要翻译： 近年来，电讯业目睹了各种数字声码器的扩散，以满足不同有线和无线通讯系统的带宽需求。 网络的多样性的快速增长和这种网络的用户数量正在增加两个声码器串联放置以服务于单个连接的情况的数量。 低比特率编解码器的这种布置可能会降低发送语音的质量。 为了克服这个问题，本发明提供了一种用于在无线通信环境中发送数字化语音信号的新颖方法和装置。 该装置能够通过中间公共格式将压缩的语音信号从一种格式转换成另一格式，从而避免必须将语音数据连续解压缩到PCM型数字化，然后再重新压缩语音数据。