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1. 发明授权

US06992994B2 Methods and systems for a generalized mobility solution using a dynamic tunneling agent 有权
公开(公告)号：US06992994B2
公开(公告)日：2006-01-31
申请号：US09834234
申请日：2001-04-12
申请人： Subir Das , Archan Misra , Anthony Mcauley , Ashutosh Dutta , Prathima Agrawal , Sajal Das
发明人： Subir Das , Archan Misra , Anthony Mcauley , Ashutosh Dutta , Prathima Agrawal , Sajal Das
IPC分类号： H04Q7/00
CPC分类号： H04W8/085 , H04L29/12367 , H04L61/2514 , H04W80/04
摘要： Methods and systems are provided for facilitating intra-domain mobility. A first network or domain includes a home agent or SIP proxy of a mobile node. A second network includes two or more subnetworks and at least one dynamic tunneling agent (DTA). Each subnetwork includes an associated subnet agent. To communicate, the mobile node first registers with a subnet agent, receives a local care-of-address and a global care-of-address, and then registers with a DTA. The local care-of-address received from the subnet agent may enable communication with the mobile node without determining a specific route to the mobile node. The global care-of-address received from the subnet agent may include the address of the DTA with which to register. On registering with the DTA, the DTA may provide the mobile node with a unique, globally reachable global care-of-address, which the mobile node may then forward to a home agent, SIP proxy, or a correspondent node. Accordingly, the mobile node may transition from any of the subnetworks to another subnetwork without communicating to the home agent information about the transition and without communicating to the DTA information about a security association between the mobile node and the home agent.

2. 发明授权

US06992995B2 Telecommunication enhanced mobile IP architecture for intra-domain mobility 有权
标题翻译：电信增强的移动IP架构，用于域内移动性
公开(公告)号：US06992995B2
公开(公告)日：2006-01-31
申请号：US09834237
申请日：2001-04-12
申请人： Prathima Agrawal , Subir Das , Sajal Das , Archan Misra
发明人： Prathima Agrawal , Subir Das , Sajal Das , Archan Misra
IPC分类号： H04Q7/00
CPC分类号： H04W8/085 , H04W80/04
摘要： Methods and systems are provided for facilitating intra-domain mobility. A first network or domain includes a home agent or SIP proxy of a mobile node. A second network includes two or more subnetworks and at least one mobility agent (MA). Each subnetwork includes an associated subnet agent. To communicate, the mobile node first registers with a subnet agent, receives a local care-of-address and a global care-of-address, and then registers with an MA. The mobile node may then provide the global care-of-address to the home agent. The local care-of-address may enable communication with the mobile node without determining a specific route to the mobile node. The global care-of-address received from the subnet agent may include the address of the MA. Accordingly, the mobile node may transition from any of the subnetworks to another subnetwork without communicating to the home agent information about the transition and without communicating to the MA information about a security association between the mobile node and the home agent.
摘要翻译：提供方法和系统以促进域内迁移。第一网络或域包括移动节点的归属代理或SIP代理。第二网络包括两个或多个子网络和至少一个移动性代理（MA）。每个子网包括相关联的子网代理。为了通信，移动节点首先向子网代理注册，接收地址转交地址和全局转交地址，然后向MA注册。然后，移动节点可以向归属代理提供全局转交地址。本地转交地址可以实现与移动节点的通信，而无需确定到移动节点的特定路由。从子网代理接收到的全局转交地址可能包括MA的地址。因此，移动节点可以从任何子网转换到另一个子网，而不需要与归属代理相关的关于转换的信息进行通信，并且不与移动节点和归属代理之间的安全关联的MA信息通信。

3. 发明授权

US08792454B2 Secure and seamless WAN-LAN roaming 有权
标题翻译：安全无缝的WAN-LAN漫游
公开(公告)号：US08792454B2
公开(公告)日：2014-07-29
申请号：US13554711
申请日：2012-07-20
申请人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
发明人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
IPC分类号： H04W4/00 , H04W80/04 , H04W84/12 , H04L29/06
CPC分类号： H04L63/1458 , H04L29/06088 , H04L63/02 , H04L63/0272 , H04L63/0428 , H04L63/061 , H04L63/164 , H04L69/14 , H04L69/161 , H04W8/02 , H04W12/06 , H04W80/04 , H04W80/045 , H04W84/12
摘要： Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
摘要翻译：描述了内部和外部网络之间的安全和无缝漫游的系统和方法。双重和三重隧道可用于将移动节点连接到通讯主机。移动节点可以包括同时连接到两个网络的能力，以实现网络之间的无缝漫游。

4. 发明授权

US07139285B2 Frequency hop collision prediction in a multi-channel, bluetooth-enabled packet transmission system 有权
标题翻译：在多通道，支持蓝牙的分组传输系统中进行频跳冲突预测
公开(公告)号：US07139285B2
公开(公告)日：2006-11-21
申请号：US10016238
申请日：2001-12-10
申请人： Prathima Agrawal , David Famolari
发明人： Prathima Agrawal , David Famolari
IPC分类号： H04L12/43 , H04J3/00
CPC分类号： H04W16/14 , H04B1/715 , H04B2001/7154 , H04W84/18
摘要： An arrangement including a scannable matrix for predicting the occurrence of a future collision of frequency hops of the channel hopping patterns on the respective activated first paths of a Bluetooth packet transmission system is described. A first coordinate of the matrix defines columns representative of a selectable window of N successive future time slots of the channel hopping patterns, and a second coordinate of the matrix defines rows each exhibiting the successive frequency hops of the patterns segments transmitted on a separate one of the activated channels during such window. The first coordinate is scanned to detect the occurrence, if any, of identical frequency hops appearing at an intersection of the then-scanned column and at least a pair of the rows. If a particular scan does not detect an occurrence of such identical frequency hops in any of the time slots of the scanned window, the first coordinate may be incremented by a selected number of time slots at the end of the scan, and the scan is then successively repeated for each new window that results. If and when identical frequency hops are detected in a particular future time slot during a scan, the channel hopping pattern(s) on a subset of the affected channels may be suitably altered to avoid the predicted collision.
摘要翻译：描述了包括用于预测蓝牙分组传输系统的相应的激活的第一路径上的信道跳频模式的跳频的未来冲突的发生的可扫描矩阵的布置。矩阵的第一坐标定义表示信道跳频图案的N个连续未来时隙的可选窗口的列，并且矩阵的第二坐标定义各自表现出在单独的一个上发送的模式段的连续跳频的行在这样的窗口中激活的通道。扫描第一个坐标以检测出现在当时扫描的列和至少一对行的交点处的相同跳频的发生（如果有的话）。如果特定扫描未检测到扫描窗口的任何时隙中出现这样相同的跳频，则第一坐标可以在扫描结束时递增选定数量的时隙，然后扫描连续重复每个新窗口的结果。如果并且当在扫描期间在特定的未来时隙中检测到相同的跳频时，可以适当地改变受影响信道的子集上的信道跳频模式以避免预测的冲突。

5. 发明授权

US07103360B2 Switching telephone calls between wireline and cellular telephones 有权
公开(公告)号：US07103360B2
公开(公告)日：2006-09-05
申请号：US10045346
申请日：2001-10-23
申请人： Prathima Agrawal , Parameswaran Ramanathan
发明人： Prathima Agrawal , Parameswaran Ramanathan
IPC分类号： H04Q7/20
CPC分类号： H04M3/58 , H04M3/54 , H04M2203/1091 , H04M2207/206 , H04W4/16 , H04W8/18
摘要： A telephone subscriber having both a wireline and a cellular telephone can switch calls between these phones. A routing table identifies that a subscriber is entitled to this service, and a look up table maintains the telephone numbers of the two different telephones. Upon detection of a unique signal indicating a request for switching a call connected to one of the telephones to the other telephone, a connection is made to the other telephone, the two connections are bridged, and then the first connection is dropped. The routing table may be maintained in a central office and the look up table may be maintained in a mobile switching center or a fixed cellular mobility agent.

6. 发明授权

US06788660B1 Adaptive mobile signaling for wireless internet telephony 有权
标题翻译：适用于无线互联网电话的移动信令
公开(公告)号：US06788660B1
公开(公告)日：2004-09-07
申请号：US09512646
申请日：2000-02-24
申请人： Prathima Agrawal , Jyh-Cheng Chen
发明人： Prathima Agrawal , Jyh-Cheng Chen
IPC分类号： H04Q700
CPC分类号： H04W36/36 , H04L29/06027 , H04L65/1043 , H04L65/1069 , H04W36/08 , H04W76/10 , H04W76/20
摘要： Active packets are utilized by a mobile terminal in a wireless network to set-up a wireless call via a signaling process, and for mobility management via a mobility process as the mobile terminal moves from one cell to another in a subnet. Active packets instantiate an agent in the fixed network to handle signaling between the mobile terminal and the fixed network, and then instruct the agent to negotiate setup of an open channel between the mobile terminal and the destination device. Moreover, active packets foster the handoff of the mobile terminal as the terminal moves from one cell to another in a subnet. Finally, the signaling process and mobility process are coordinated so that lost active packets are mitigated during roaming by the mobile terminal.
摘要翻译：活动分组被无线网络中的移动终端用于经由信令过程建立无线呼叫，并且当移动终端在子网中从一个小区移动到另一个小区时，经由移动性过程进行移动性管理。活动分组实例化固定网络中的代理以处理移动终端和固定网络之间的信令，然后指示代理商协商移动终端与目的地设备之间的开放信道的建立。此外，当终端在子网中从一个小区移动到另一个小区时，活动分组促进移动终端的切换。最后，协调信令过程和移动性过程，以便在移动终端漫游期间减轻活动分组丢失。

7. 发明授权

US06480537B1 Active techniques for video transmission and playback 有权
标题翻译：视频传输和播放的主动技术
公开(公告)号：US06480537B1
公开(公告)日：2002-11-12
申请号：US09420401
申请日：1999-10-18
申请人： Prathima Agrawal , Jyh-Cheng Chen , David Famolari
发明人： Prathima Agrawal , Jyh-Cheng Chen , David Famolari
IPC分类号： H04B166
CPC分类号： H04N21/4351 , H04N21/235 , H04N21/4348 , H04N21/435 , H04N21/4431 , H04N21/8166 , H04N21/8193
摘要： Encoding a real-time and non-real-time video stream, encapsulating the encoded video stream along with the decoding software corresponding to the encoding program into active packets at the Application and Services layer, and transmitting active the packets to the receiving terminal, which then supplies the receiver with the necessary decoding software to play any type of encoded video stream without having the associated decoding software pre-loaded.
摘要翻译：编码实时和非实时视频流，将编码视频流连同与编码程序相对应的解码软件封装成应用和服务层的活动分组，并将分组发送到接收终端，然后为接收机提供必要的解码软件，以播放任何类型的编码视频流，而不必对相关联的解码软件进行预加载。

8. 发明授权

US5623483A Synchronization system for networked multimedia streams 失效
标题翻译：联网多媒体流同步系统
公开(公告)号：US5623483A
公开(公告)日：1997-04-22
申请号：US439041
申请日：1995-05-11
申请人： Prathima Agrawal , Balakrishnan Narendran , Narayanan Shivakumar , Cormac J. Sreenan
发明人： Prathima Agrawal , Balakrishnan Narendran , Narayanan Shivakumar , Cormac J. Sreenan
IPC分类号： H04J3/06 , H04L12/56 , H04N21/2368 , H04N21/434 , H04Q11/04
CPC分类号： H04Q11/0478 , H04J3/0632 , H04N21/4305 , H04N21/4307 , H04N21/44004 , H04N21/8547 , H04L2012/5616 , H04L2012/5674
摘要： A network data stream synchronization method and system are disclosed. Operating delay and loss parameters are accepted and a data stream buffer is initialized. The network delay experienced by a data packet is determined and a buffer delay is imposed to provide a fixed end-to-end delay. Packets arriving too late to be played within the fixed end-to-end delay are discarded. Network delay models may be updated and clock drifts may be detected and compensated for using historical buffer data.
摘要翻译：公开了一种网络数据流同步方法和系统。接受运行延迟和损耗参数，并初始化数据流缓冲区。确定数据分组所经历的网络延迟并施加缓冲器延迟以提供固定的端到端延迟。到达太迟的数据包在固定的端到端延迟内播放被丢弃。可以更新网络延迟模型，并且可以检测和补偿时钟漂移以使用历史缓冲器数据。

9. 发明授权

US5465389A Method of prioritizing handoff procedures in a cellular system 失效
标题翻译：在蜂窝系统中优先切换过程的方法
公开(公告)号：US5465389A
公开(公告)日：1995-11-07
申请号：US201601
申请日：1994-02-25
申请人： Prathima Agrawal , Dinesh K. Anvekar , Balakrishnan Narendran
发明人： Prathima Agrawal , Dinesh K. Anvekar , Balakrishnan Narendran
IPC分类号： H04B7/26 , H04W36/08 , H04W36/32 , H04W72/10
CPC分类号： H04W36/0083 , H04W36/32 , H04W72/10
摘要： A method of prioritizing handoff requests in a cellular system is disclosed in which at least one handoff request for assignment of a communication channel is received from at least one mobile unit. A cutoff time for the handoff request is determined. The handoff requests are arranged in a priority queue based on the cutoff time associated with each handoff request. Available communication channels are assigned to the mobile units requesting handoff in the order of the queue.
摘要翻译：公开了一种在蜂窝系统中对切换请求进行优先排序的方法，其中从至少一个移动单元接收至少一个用于分配通信信道的切换请求。确定切换请求的截止时间。基于与每个切换请求相关联的切断时间，切换请求被排列在优先级队列中。可用的通信信道被分配给以队列的顺序请求切换的移动单元。

10. 发明授权

US5257268A Cost-function directed search method for generating tests for sequential logic circuits 失效
标题翻译：用于生成顺序逻辑电路测试的成本函数定向搜索方法
公开(公告)号：US5257268A
公开(公告)日：1993-10-26
申请号：US497824
申请日：1990-03-22
申请人： Prathima Agrawal , Vishwani D. Agrawal , Kwang T. Cheng
发明人： Prathima Agrawal , Vishwani D. Agrawal , Kwang T. Cheng
IPC分类号： G01R31/3183 , G01R31/28
CPC分类号： G01R31/318307 , G01R31/318342
摘要： A method for developing a test sequence and for testing manufactured digital circuits. Test vectors are developed based on a simulation-based, directed-search approach. Specifically, from a given test vector, a next test vector is developed by altering the given test vector and determining the utility of the altered trial vector in propagating circuit faults to the primary outputs, based on a simulation of the circuit and a preselected cost function. The vector set is created through an iterative process of altering an accepted test vestor to develop a next trial vector. The vector set is efficiently developed by employing one phase that treats the entire set of circuit faults as the target, followed by another phase that targets specific faults that have not been detected in the previous phase.
摘要翻译：用于开发测试序列和测试制造的数字电路的方法。基于模拟，定向搜索方法开发测试向量。具体来说，从给定的测试向量中，通过改变给定的测试向量并基于电路的模拟和预选的成本函数来确定改变的测试向量在传播电路故障中对初级输出的效用来开发下一个测试向量。矢量集是通过迭代过程创建的，该迭代过程可以改变接受的测试体系以开发下一个试验向量。通过使用将整个电路故障集合视为目标的一个相位，然后是针对在前一阶段中未被检测到的特定故障的另一个相位，可以有效地开发向量集。

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