公开(公告)号：US20090141647A1

公开(公告)日：2009-06-04

申请号：US11949615

申请日：2007-12-03

申请人： Eric John Diethorn ,  P. Krishnan ,  Jean Meloche ,  Balaji Sathyanarayana Rao ,  Jay M. Stiles ,  John R. Tuck, JR.

发明人： Eric John Diethorn ,  P. Krishnan ,  Jean Meloche ,  Balaji Sathyanarayana Rao ,  Jay M. Stiles ,  John R. Tuck, JR.

IPC分类号： H04L12/26

CPC分类号： H04L1/20 ,  G10L25/69

摘要： An apparatus and method are disclosed that enable a first telecommunications endpoint to ensure that a second endpoint is receiving the first endpoint's packet stream transmissions with a satisfactory waveform quality. When the second endpoint receives the packet stream, it decodes the media waveform from the stream, encodes the waveform back into a second packet stream, and transmits some or all of the packets in the second stream back to the first endpoint. The first endpoint then decodes the received waveform in the second stream and compares it to the original waveform transmitted to the second endpoint. Based on the comparison, the first endpoint adjusts the value of a quality indication, and provides the quality indication to its user and to the second endpoint. Advantageously, the user at the second endpoint is able to determine whether the received waveform is, in fact, close enough to the waveform that the first endpoint's user intended to be received and understood.

摘要翻译： 公开了一种能够使第一电信端点确保第二端点以令人满意的波形质量接收第一端点的分组流传输的装置和方法。 当第二端点接收到分组流时，它从流解码媒体波形，将波形编码回第二分组流，并将第二流中的一些或全部分组发回到第一端点。 然后，第一端点对第二流中的接收波形进行解码，并将其与发送到第二端点的原始波形进行比较。 基于比较，第一端点调整质量指示的值，并向其用户和第二端点提供质量指示。 有利地，第二端点处的用户能够确定接收到的波形实际上是否足够接近第一端点的用户意图被接收和理解的波形。

公开(公告)号：US20080112326A1

公开(公告)日：2008-05-15

申请号：US11937911

申请日：2007-11-09

申请人： Anjur Sundaresan Krishnakumar ,  P. Krishnan ,  Shalini Yajnik ,  Sameh Gobriel

发明人： Anjur Sundaresan Krishnakumar ,  P. Krishnan ,  Shalini Yajnik ,  Sameh Gobriel

IPC分类号： G08C15/00

CPC分类号： H04L45/123 ,  H04L45/02 ,  H04L45/16 ,  H04L45/24 ,  H04L47/125 ,  H04W40/02 ,  H04W40/24

摘要： An apparatus and methods are disclosed that enable load-balancing of routes in ad-hoc wireless networks. In accordance with the illustrative embodiment, when a candidate intermediate node receives a routing-protocol message, the node waits before it transmits a message in response to the received message, where the amount of time that the node waits is based on the value of a load metric at the node and is independent of any other nodes in the network. As a result, a node that has a larger load will wait longer to transmit its routing-protocol message, and consequently, it is less likely that this node will be selected for inclusion in the new route. The techniques of the illustrative embodiment are applicable to both proactive and on-demand routing protocols, and are also applicable to other kinds of networks.

摘要翻译： 公开了一种能够对ad-hoc无线网络中的路由进行负载平衡的装置和方法。 根据说明性实施例，当候选中间节点接收到路由协议消息时，节点在响应于接收到的消息发送消息之前等待，其中节点等待的时间量基于a的值 节点处的负载度量，并且与网络中的任何其他节点无关。 因此，具有较大负载的节点将等待更长时间来传送其​​路由协议消息，因此不太可能选择该节点包含在新路由中。 说明性实施例的技术可应用于主动和按需路由协议两者，并且也适用于其他种类的网络。

公开(公告)号：US20080080523A1

公开(公告)日：2008-04-03

申请号：US11861079

申请日：2007-09-25

申请人： Bengi Karacali-Akyamac ,  Mark John Karol ,  P. Krishnan ,  Jean Meloche

发明人： Bengi Karacali-Akyamac ,  Mark John Karol ,  P. Krishnan ,  Jean Meloche

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/306

摘要： A technique that seeks to direct and re-direct streams of packets through a packet network without adversely affecting the quality of service of existing streams is disclosed. In accordance with the illustrative embodiment of the present invention, streams of packets that are directed and re-directed through a packet network are initially put on probation. During the probation period, a quality-of-service measure for the stream is compared with a threshold whose value is initially high and decreases with time. This has the advantageous affect of noticing problems quickly so that they can be remediated quickly.

摘要翻译： 公开了一种技术，其旨在通过分组网络直接和重新引导分组流，而不会不利地影响现有流的服务质量。 根据本发明的说明性实施例，通过分组网络被引导和重定向的分组流最初被试用。 在试用期间，将流量的服务质量度量与其初始值为高的阈值进行比较，并随时间减少。 这具有快速注意问题的有利影响，可以快速修复。

公开(公告)号：US20070073880A1

公开(公告)日：2007-03-29

申请号：US11239494

申请日：2005-09-29

申请人： Anjur Krishnakumar ,  P. Krishnan ,  Venkatesh Krishnaswamy

发明人： Anjur Krishnakumar ,  P. Krishnan ,  Venkatesh Krishnaswamy

IPC分类号： G06F15/173

CPC分类号： H04L63/0807 ,  H04L63/102

摘要： A method and an apparatus are disclosed that provide a privilege-granting technique for enabling a service-providing domain to grant a privilege to a requesting user in a service-requesting domain. A request handler in the service-providing domain, which comprises one or more service-associated resources, receives a user request to use a service and requests a token from a privilege-granting server, in accordance with the illustrative embodiment of the present invention. Upon receiving the token that specifies a granted privilege from the privilege-granting server, the request handler extends the privilege to the requesting user. Alternatively, the request handler can request a plurality of tokens in advance from the privilege-granting server; after receiving the tokens, the request handler extends a privilege to each requesting user as the handler receives requests to use one or more services.

摘要翻译： 公开了一种方法和装置，其提供授权授权技术，用于使服务提供域能够向服务请求域中的请求用户授予特权。 根据本发明的说明性实施例，服务提供域中的包括一个或多个服务相关资源的请求处理程序接收使用服务的用户请求并从特权授予服务器请求令牌。 在从授权授权服务器接收到指定授权特权的令牌之后，请求处理程序将权限扩展到请求用户。 或者，请求处理程序可以从特权授予服务器预先请求多个令牌; 在接收到令牌之后，请求处理程序在处理程序接收到使用一个或多个服务的请求时，将权限扩展到每个请求用户。

公开(公告)号：US20050281204A1

公开(公告)日：2005-12-22

申请号：US10953024

申请日：2004-09-29

申请人： Mark Karol ,  P. Krishnan ,  Juan Li

发明人： Mark Karol ,  P. Krishnan ,  Juan Li

IPC分类号： H04L12/26 ,  H04L12/56 ,  H04L12/66 ,  H04L29/14

CPC分类号： H04L43/50 ,  H04L43/10 ,  H04L65/80 ,  H04L69/40

摘要： Techniques for performing rapid fault detection and recovery in communication networks are disclosed. For example, in one aspect of the invention, a technique for detecting one or more conditions in a communication network comprises the following steps/operations. One or more keep-alive packets are transmitted from a source node in the communication network to a destination node in the communication network over two or more paths between the source node and the destination node, wherein the two or more paths are at least partially disjoint. Upon receipt of the one or more keep-alive packets at the destination node via the two or more paths, at least one quality measure is computed at the destination node for each of the two or more paths, the at least one quality measure being indicative of one or more conditions in the communication network. While not limited thereto, the invention is particularly well-suited to Internet Protocol (IP) telephony networks, particularly those that provide Voice over IP (VoIP) applications.

摘要翻译： 公开了在通信网络中执行快速故障检测和恢复的技术。 例如，在本发明的一个方面，用于检测通信网络中的一个或多个条件的技术包括以下步骤/操作。 一个或多个保持活动分组从通信网络中的源节点通过源节点和目的地节点之间的两个或多个路径发送到通信网络中的目的地节点，其中两个或更多个路径至少部分地不相交 。 经由两个或多个路径在目的地节点处接收到一个或多个保持活动分组时，在目的地节点处针对两个或更多个路径中的每一个计算至少一个质量度量，所述至少一个质量度量指示 通信网络中的一个或多个条件。 虽然不限于此，本发明特别适用于因特网协议（IP）电话网络，特别是那些提供IP语音（VoIP）应用的电话网络。

公开(公告)号：US20050176442A1

公开(公告)日：2005-08-11

申请号：US10776058

申请日：2004-02-11

申请人： Wen-Hua Ju ,  Anjur Krishnakumar ,  P. Krishnan ,  James Landwehr ,  Colin Mallows

发明人： Wen-Hua Ju ,  Anjur Krishnakumar ,  P. Krishnan ,  James Landwehr ,  Colin Mallows

IPC分类号： G01S19/03 ,  G01S5/02 ,  H04L12/28 ,  H04W64/00 ,  H04W84/12 ,  H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/0252 ,  H04W84/12

摘要： A system is disclosed that enables the estimation of the location of a wireless terminal in a wireless network. The illustrative embodiment works without requiring modifications to be made to the wireless terminal. Furthermore, the hardware of some embodiments of the present invention can be inexpensively deployed indoors. Some embodiments of the present invention are, therefore, ideally suited for use with legacy indoor systems. The system of the illustrative embodiment of the present invention, in some embodiments, uses an offline process and an online process for location estimation. The described system, however, can be used with other techniques for location estimation.

摘要翻译： 公开了能够估计无线终端在无线网络中的位置的系统。 说明性实施例工作而不需要对无线终端进行修改。 此外，本发明的一些实施例的硬件可以廉价地部署在室内。 因此，本发明的一些实施例理想地适用于传统室内系统。 在一些实施例中，本发明的说明性实施例的系统使用离线处理和用于位置估计的在线处理。 然而，所描述的系统可以与其他用于位置估计的技术一起使用。

公开(公告)号：US20050111466A1

公开(公告)日：2005-05-26

申请号：US10721721

申请日：2003-11-25

申请人： Martin Kappes ,  P. Krishnan

发明人： Martin Kappes ,  P. Krishnan

IPC分类号： H04L29/06 ,  H04L12/28 ,  G06F15/173 ,  H04M3/16

CPC分类号： H04L63/08 ,  H04L63/0876 ,  H04W12/06

摘要： A method and apparatus are provided for authenticating the contents of a device requesting access to a first network, such as an enterprise network. If a device has connected to at least one other network then the content of the device is evaluated prior to obtaining access. The scope of the content evaluation may be based, for example, on properties of the other network or on one or more defined content authentication rules. If a device attempts to access a network, the content of the device is evaluated and the device may be restricted to accessing only one or more restoration services if the content fails to satisfy one or more predefined criteria, such as a content item that is out of date or a determination that the device connected to one or more external networks. The restoration service(s) can update a content item that is out of date, reinstall one or more programs or return configuration settings to default values.

摘要翻译： 提供了一种用于认证请求接入诸如企业网络的第一网络的设备的内容的方法和装置。 如果设备已经连接到至少一个其他网络，则在获得访问之前对设备的内容进行评估。 内容评估的范围可以例如基于另一网络的属性或基于一个或多个定义的内容认证规则。 如果设备尝试访问网络，则评估设备的内容，并且如果内容不能满足一个或多个预定义的标准（例如，出口的内容项目），则设备可能被限制为仅访问一个或多个恢复服务 或确定设备连接到一个或多个外部网络。 恢复服务可以更新过期的内容项目，重新安装一个或多个程序或将配置设置返回到默认值。

公开(公告)号：US06606710B2

公开(公告)日：2003-08-12

申请号：US10179460

申请日：2002-06-24

申请人： P. Krishnan ,  Danny Raz ,  Binay Sugla

发明人： P. Krishnan ,  Danny Raz ,  Binay Sugla

IPC分类号： G06F1130

CPC分类号： H04L63/0227 ,  H04L63/0263

摘要： A packet data filter which stores ordered rules and sequentially applies the rules to received data packets to determine the disposition of the data packet. The packet filter maintains a match count in memory which indicates the number of times each rule matched an incoming data packet. Periodically, at the initiation of a user, or based on operating parameters of the filter, the rules are automatically re-ordered based on the match count. As a result of the re-ordering, rules with higher match counts are moved earlier in the sequential evaluation order and rules with lower match counts are moved later in the sequential evaluation order. As such, rules which are more likely to match incoming data packets are evaluated earlier, thus avoiding the evaluation of later rules. In order to prevent a re-ordering which would change the overall security policy of the packet filter, pairs of rules are compared to determine if they conflict (i.e., the swapping of the two rules would result in a change in the overall security policy). During re-ordering, the swapping of conflicting rules is prevented.

摘要翻译： 分组数据过滤器，其存储有序规则，并且将规则顺序地应用于接收的数据分组，以确定数据分组的配置。 分组过滤器在内存中保持匹配计数，其指示每个规则与输入数据分组匹配的次数。 定期地，在用户开始时，或者基于过滤器的操作参数，基于匹配计数自动重新排序规则。 作为重新排序的结果，具有较高匹配计数的规则在顺序评估顺序中被更早地移动，并且具有较低匹配计数的规则将在顺序评估顺序中稍后移动。 因此，较早地评估更有可能匹配传入数据分组的规则，从而避免对稍后规则的评估。 为了防止重新排序，这将改变分组过滤器的整体安全策略，将比较对规则来确定它们是否冲突（即，两个规则的交换将导致总体安全策略的改变） 。 在重新订购期间，阻止了冲突规则的交换。

公开(公告)号：US5485609A

公开(公告)日：1996-01-16

申请号：US246600

申请日：1994-05-20

申请人： Jeffrey S. Vitter ,  Kenneth M. Curewitz ,  P. Krishnan

发明人： Jeffrey S. Vitter ,  Kenneth M. Curewitz ,  P. Krishnan

IPC分类号： G06F12/08 ,  G06F17/30

CPC分类号： G06F12/0862 ,  G06F12/0866 ,  G06F2212/6024 ,  G06F2212/6026 ,  Y10S707/99942

摘要： Online prediction techniques based on data compression principles are employed to make predictions in restricted memory environments. Predictors have data structures in the form of trees that are paged and maintained in a cache on a least recently used replacement basis. A fast sequence of events strategy increments the counts for events at the current node of the predictor.

摘要翻译： 采用基于数据压缩原理的在线预测技术在受限内存环境中进行预测。 预测器具有树形式的数据结构，该数据结构在最近最少使用的替换基础上在缓存中分页和维护。 快速的事件序列策略会增加预测器当前节点上事件的计数。

公开(公告)号：US07949114B2

公开(公告)日：2011-05-24

申请号：US11080866

申请日：2005-03-15

申请人： Martin Kappes ,  P Krishnan

发明人： Martin Kappes ,  P Krishnan

IPC分类号： H04M3/00

CPC分类号： H04L63/18 ,  H04M1/2535 ,  H04M7/0078

摘要： A method and apparatus are disclosed that enable a data-processing system, such as a server, to determine whether or not to grant a telecommunications terminal one or more privileges, without some of the disadvantages of the prior art. Specifically, in accordance with the illustrative embodiments of the present invention, a call-processing server transmits, to a first terminal, a first signal for verifying a second terminal, such as one that has been designated by a user. The user is then required to transmit a second signal to the call-processing server via the second terminal. The call-processing server then examines the received second signal with respect to the first signal and determines whether or not to grant the second terminal a privilege (e.g., handling calls on behalf of the user, etc.), based on the relationship between the first and second signals.

摘要翻译： 公开了一种使数据处理系统（诸如服务器）能够确定是否授予电信终端一个或多个特权的方法和装置，而不存在现有技术的一些缺点。 具体地，根据本发明的说明性实施例，呼叫处理服务器向第一终端发送用于验证诸如用户指定的第二终端的第二终端的第一信号。 然后，用户需要经由第二终端向呼叫处理服务器发送第二信号。 然后，呼叫处理服务器检查相对于第一信号的接收到的第二信号，并且基于第一信号之间的关系确定是否授予第二终端的特权（例如，代表用户处理呼叫等） 第一和第二信号。