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21. 发明授权

US08358975B2 Signaling over cellular networks to reduce the Wi-Fi energy consumption of mobile devices 有权
标题翻译：通过蜂窝网络进行信令，以减少移动设备的Wi-Fi能耗
公开(公告)号：US08358975B2
公开(公告)日：2013-01-22
申请号：US11964173
申请日：2007-12-26
申请人： Paramvir Bahl , Alastair Wolman , Ranveer Chandra , Kevin Chin , Yuvraj Agarwal
发明人： Paramvir Bahl , Alastair Wolman , Ranveer Chandra , Kevin Chin , Yuvraj Agarwal
IPC分类号： H04B5/00
CPC分类号： H04W52/0229 , H04L65/1069 , H04M1/2535 , H04M1/725 , H04M2250/06 , H04W52/0209 , H04W52/0235 , H04W52/0274 , H04W74/085 , H04W76/10 , H04W80/04 , H04W84/10 , H04W88/06 , H04W92/00 , Y02D70/00 , Y02D70/1224 , Y02D70/142 , Y02D70/23
摘要： Techniques for increasing the battery life on a mobile device by decreasing the energy consumption of the mobile device's wireless fidelity (Wi-Fi) interface are described. In one embodiment, the mobile device's Wi-Fi interface is automatically disabled when the device is not engaged. When the device receives a wake up call from a server via its Cellular interface, the Wi-Fi interface is enabled if the device answers the wake up call and the Wi-Fi interface is available. Using its Wi-Fi interface, the mobile device then connects to an IP-based network via a Wi-Fi access point.
摘要翻译：描述了通过降低移动设备的无线保真（Wi-Fi）接口的能量消耗来增加移动设备上的电池寿命的技术。在一个实施例中，当设备未被接合时，移动设备的Wi-Fi接口被自动禁用。当设备通过其蜂窝接口从服务器接收到唤醒呼叫时，如果设备应答唤醒呼叫并且Wi-Fi接口可用，则Wi-Fi接口被启用。使用其Wi-Fi接口，移动设备然后通过Wi-Fi接入点连接到基于IP的网络。

22. 发明申请

US20100179753A1 Estimating Time Of Arrival 审中-公开
标题翻译：估计到达时间
公开(公告)号：US20100179753A1
公开(公告)日：2010-07-15
申请号：US12353970
申请日：2009-01-15
申请人： Sharad Agarwal , Paramvir Bahl , Ranveer Chandra , Alastair Wolman , Mudit Jain
发明人： Sharad Agarwal , Paramvir Bahl , Ranveer Chandra , Alastair Wolman , Mudit Jain
IPC分类号： G01C21/00
CPC分类号： G01C21/26 , G01C21/20
摘要： Described herein is a system that includes a location determiner component that receives a first geographic location of a personal computing device of a first individual, wherein the first geographic location is indicative of a current geographic location of the first individual. The system also includes an estimator component that receives a second geographic location that is different from the first geographic location. The estimator component determines an estimated time of arrival for the first individual at the second geographic location based at least in part upon the received first geographic location, wherein the estimator component outputs the estimated time of arrival to a second individual.
摘要翻译：这里描述的是包括接收第一个人的个人计算设备的第一地理位置的位置确定器组件的系统，其中第一地理位置指示第一个人的当前地理位置。该系统还包括接收与第一地理位置不同的第二地理位置的估计器组件。估计器组件至少部分地基于所接收的第一地理位置确定第一个体在第二地理位置处的估计到达时间，其中估计器组件输出到达第二个体的预计到达时间。

23. 发明申请

US20080247344A1 Signaling Over Cellular Networks to Reduce the Wi-Fi Energy Consumption of Mobile Devices 有权
标题翻译：在蜂窝网络上进行信令，以减少移动设备的Wi-Fi能量消耗
公开(公告)号：US20080247344A1
公开(公告)日：2008-10-09
申请号：US11697263
申请日：2007-04-05
申请人： Paramvir Bahl , Ranveer Chandra , Kevin Chin , Alastair Wolman , Yuvraj Agarwal
发明人： Paramvir Bahl , Ranveer Chandra , Kevin Chin , Alastair Wolman , Yuvraj Agarwal
IPC分类号： H04B7/00
CPC分类号： H04W52/0229 , H04L65/1069 , H04M1/2535 , H04M1/725 , H04M2250/06 , H04W52/0209 , H04W52/0235 , H04W52/0274 , H04W74/085 , H04W76/10 , H04W80/04 , H04W84/10 , H04W88/06 , H04W92/00 , Y02D70/00 , Y02D70/1224 , Y02D70/142 , Y02D70/23
摘要： Techniques for increasing the battery life on a mobile device by decreasing the energy consumption of the mobile device's wireless fidelity (Wi-Fi) interface are described. In one embodiment, the mobile device's Wi-Fi interface is automatically disabled when the device is not engaged in a voice over internet protocol (VoIP) call via the Wi-Fi interface. When a VoIP call is initiated on the device, or when the device receives a wake up call from a server via its Cellular interface, the Wi-Fi interface is automatically enabled. Using its Wi-Fi interface, the mobile device then connects to an IP-based network via a Wi-Fi access point. The server then initiates a direct call, wherein VoIP technology is used by the mobile device, between the mobile device and a VoIP calling device.
摘要翻译：描述了通过降低移动设备的无线保真（Wi-Fi）接口的能量消耗来增加移动设备上的电池寿命的技术。在一个实施例中，当设备未通过Wi-Fi接口进行通过因特网协议语音（VoIP）呼叫时，移动设备的Wi-Fi接口被自动禁用。当在设备上启动VoIP呼叫时，或者当设备通过其蜂窝接口从服务器接收到唤醒呼叫时，Wi-Fi接口将被自动启用。使用其Wi-Fi接口，移动设备然后通过Wi-Fi接入点连接到基于IP的网络。然后，服务器启动直接呼叫，其中移动设备使用VoIP技术，在移动设备和VoIP呼叫设备之间。

24. 发明申请

US20110211517A1 EFFICIENT AND RELIABLE MULTICAST OVER A Wi-Fi NETWORK 有权
标题翻译： Wi-Fi网络的高效和可靠的多媒体
公开(公告)号：US20110211517A1
公开(公告)日：2011-09-01
申请号：US12714360
申请日：2010-02-26
申请人： Thomas Moscibroda , Vishnu Navda , Ramachandran Ramjee , Sandeep P. Karanth , Lenin Ravindranath Sivalingam , Jitendra D. Padhye , Ranveer Chandra
发明人： Thomas Moscibroda , Vishnu Navda , Ramachandran Ramjee , Sandeep P. Karanth , Lenin Ravindranath Sivalingam , Jitendra D. Padhye , Ranveer Chandra
IPC分类号： H04H20/71 , H03M13/05 , G06F11/10 , H04W8/00
CPC分类号： H04H20/63 , H04L1/0009 , H04L1/0015 , H04L1/16 , H04L1/1854 , H04L2001/0093 , H04W8/186 , H04W48/20 , H04W76/40
摘要： A “Wi-Fi Multicaster” provides a practical and efficient Wi-Fi multicast system for environments having potentially large numbers of Wi-Fi clients. Significantly, the Wi-Fi Multicaster does not require any changes to the 802.11 protocol, or to the underlying Wi-Fi infrastructure. In various embodiments, the Wi-Fi Multicaster uses pseudo-broadcast, and augments it with destination control, association control and optional proactive FEC (forward error correction) to improve multicast performance. More specifically, the Wi-Fi Multicaster system converts multicast packets to targeted unicast transmissions. To minimize the amount of airtime consumed, the Wi-Fi Multicaster uses destination control in combination with various algorithms for association control. Further, in various embodiments, the Wi-Fi Multicaster includes an adaptive, proactive FEC scheme to reduce overall packet losses. Finally, to overcome the challenges posed by encryption protocols such as 802.1x, the Wi-Fi Multicaster uses a “virtual multicast interface” that allows clients to “share” a common key for each multicast.
摘要翻译： “Wi-Fi Multicaster”为具有潜在大量Wi-Fi客户端的环境提供了实用且高效的Wi-Fi组播系统。重要的是，Wi-Fi Multicaster不需要对802.11协议或底层Wi-Fi基础设施进行任何更改。在各种实施例中，Wi-Fi Multicaster使用伪广播，并且将其与目的地控制，关联控制和可选的主动FEC（前向纠错）相加以提高多播性能。更具体地说，Wi-Fi Multicaster系统将多播分组转换为目标单播传输。为了最大限度地减少消耗的通话时间，Wi-Fi Multicaster将目的地控制与各种算法结合使用，进行关联控制。此外，在各种实施例中，Wi-Fi多播卡器包括自适应主动FEC方案以减少总体分组丢失。最后，为了克服802.1x等加密协议带来的挑战，Wi-Fi Multicaster使用“虚拟多播接口”，允许客户端“共享”每个组播的公共密钥。

25. 发明申请

US20070274324A1 LOCAL NETWORK CODING FOR WIRELESS NETWORKS 有权
标题翻译：无线网络的本地网络编码
公开(公告)号：US20070274324A1
公开(公告)日：2007-11-29
申请号：US11420616
申请日：2006-05-26
申请人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
发明人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
IPC分类号： H04L12/56
CPC分类号： H04L1/1874 , H04L1/0076 , H04L67/327 , H04W28/06 , H04W48/08 , H04W84/12
摘要： A local network coding framework and method including techniques to improve efficiency in a wireless network by reducing overhead. The local network coding method includes exchanging data availability between nodes on the wireless network by sending Bloom filters of lists of packets to neighboring nodes. Based on data availability, optimized mixing of pure packets is performed to form mixture packets for output. A separate acknowledgement buffer keeps track of the pure packets transmitted but not acknowledged. If an acknowledgement does not arrive after a certain time period, the packet is assumed to be lost and is retransmitted. An optimized packet mixing process generates mixture packets and decides which nodes to send the mixture packets. The local network coding framework and method also includes methods for representing the composition of a mixture packet and using mixing at a wireless access point to improve the performance of the wireless local area network.
摘要翻译：本地网络编码框架和方法包括通过减少开销来提高无线网络的效率的技术。本地网络编码方法包括通过向相邻节点发送分组列表的Bloom过滤器来在无线网络上的节点之间交换数据可用性。基于数据可用性，执行纯数据包的优化混合，形成混合数据包进行输出。单独的确认缓冲区跟踪发送但未确认的纯数据包。如果确认在某个时间段之后未到达，则假定该分组丢失并被重发。优化的分组混合过程产生混合分组，并决定哪些节点发送混合分组。本地网络编码框架和方法还包括用于表示混合分组的组合并在无线接入点使用混合来改善无线局域网的性能的方法。

26. 发明授权

US08411608B2 Efficient and reliable multicast over a Wi-Fi network 有权
标题翻译：通过Wi-Fi网络高效可靠的多播
公开(公告)号：US08411608B2
公开(公告)日：2013-04-02
申请号：US12714360
申请日：2010-02-26
申请人： Ranveer Chandra , Sandeep P. Karanth , Thomas Moscibroda , Vishnu Navda , Jitendra D. Padhye , Ramachandran Ramjee , Lenin Ravindranath Sivalingam
发明人： Ranveer Chandra , Sandeep P. Karanth , Thomas Moscibroda , Vishnu Navda , Jitendra D. Padhye , Ramachandran Ramjee , Lenin Ravindranath Sivalingam
IPC分类号： H04H20/71
CPC分类号： H04H20/63 , H04L1/0009 , H04L1/0015 , H04L1/16 , H04L1/1854 , H04L2001/0093 , H04W8/186 , H04W48/20 , H04W76/40
摘要： A “Wi-Fi Multicaster” provides a practical and efficient Wi-Fi multicast system for environments having potentially large numbers of Wi-Fi clients. Significantly, the Wi-Fi Multicaster does not require any changes to the 802.11 protocol, or to the underlying Wi-Fi infrastructure. In various embodiments, the Wi-Fi Multicaster uses pseudo-broadcast, and augments it with destination control, association control and optional proactive FEC (forward error correction) to improve multicast performance. More specifically, the Wi-Fi Multicaster system converts multicast packets to targeted unicast transmissions. To minimize the amount of airtime consumed, the Wi-Fi Multicaster uses destination control in combination with various algorithms for association control. Further, in various embodiments, the Wi-Fi Multicaster includes an adaptive, proactive FEC scheme to reduce overall packet losses. Finally, to overcome the challenges posed by encryption protocols such as 802.1x, the Wi-Fi Multicaster uses a “virtual multicast interface” that allows clients to “share” a common key for each multicast.
摘要翻译： Wi-Fi Multicaster为具有潜在大量Wi-Fi客户端的环境提供了实用且高效的Wi-Fi组播系统。重要的是，Wi-Fi Multicaster不需要对802.11协议或底层Wi-Fi基础设施进行任何更改。在各种实施例中，Wi-Fi Multicaster使用伪广播，并且将其与目的地控制，关联控制和可选的主动FEC（前向纠错）相加以提高多播性能。更具体地说，Wi-Fi Multicaster系统将多播分组转换为目标单播传输。为了最大限度地减少消耗的通话时间，Wi-Fi Multicaster将目的地控制与各种算法结合使用，进行关联控制。此外，在各种实施例中，Wi-Fi多播卡器包括自适应主动FEC方案以减少总体分组丢失。最后，为了克服802.1x等加密协议带来的挑战，Wi-Fi Multicaster使用虚拟组播接口，允许客户端共享每个组播的公共密钥。

27. 发明授权

US08040836B2 Local network coding for wireless networks 有权
标题翻译：无线网络的本地网络编码
公开(公告)号：US08040836B2
公开(公告)日：2011-10-18
申请号：US11420616
申请日：2006-05-26
申请人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
发明人： Yunnan Wu , Jitendra D. Padhye , Ranveer Chandra , Venkata N. Padmanabhan , Philip A. Chou , Mohamed Jawad Khaki
IPC分类号： H04B7/212
CPC分类号： H04L1/1874 , H04L1/0076 , H04L67/327 , H04W28/06 , H04W48/08 , H04W84/12
摘要： A local network coding framework and method including techniques to improve efficiency in a wireless network by reducing overhead. The local network coding method includes exchanging data availability between nodes on the wireless network by sending Bloom filters of lists of packets to neighboring nodes. Based on data availability, optimized mixing of pure packets is performed to form mixture packets for output. A separate acknowledgement buffer keeps track of the pure packets transmitted but not acknowledged. If an acknowledgement does not arrive after a certain time period, the packet is assumed to be lost and is retransmitted. An optimized packet mixing process generates mixture packets and decides which nodes to send the mixture packets. The local network coding framework and method also includes methods for representing the composition of a mixture packet and using mixing at a wireless access point to improve the performance of the wireless local area network.
摘要翻译：本地网络编码框架和方法包括通过减少开销来提高无线网络的效率的技术。本地网络编码方法包括通过向相邻节点发送分组列表的Bloom过滤器来在无线网络上的节点之间交换数据可用性。基于数据可用性，执行纯数据包的优化混合，形成混合数据包进行输出。单独的确认缓冲区跟踪发送但未确认的纯数据包。如果确认在某个时间段之后未到达，则假定该分组丢失并被重发。优化的分组混合过程产生混合分组，并决定哪些节点发送混合分组。本地网络编码框架和方法还包括用于表示混合分组的组合并在无线接入点使用混合来改善无线局域网的性能的方法。

28. 发明申请

US20100257281A1 Peer Connections Over Alternative Communication Mechanisms 审中-公开
标题翻译：通过替代通信机制的对等连接
公开(公告)号：US20100257281A1
公开(公告)日：2010-10-07
申请号：US12417745
申请日：2009-04-03
申请人： Parveen K. Patel , Jitendra D. Padhye , Ranveer Chandra
发明人： Parveen K. Patel , Jitendra D. Padhye , Ranveer Chandra
IPC分类号： G06F15/173
CPC分类号： G06F15/173 , H04L12/2858 , H04L12/4625
摘要： Alternate communication paths may be analyzed and selected for ongoing communications between two devices. One or both of the communicating devices may identify available communication paths and various identifiers on those paths. The identifiers may be, for example, base stations for a wireless connection, beacon signals, or other information that may be received by the device. After comparing the available communication paths to identify one or more alternative paths, the ongoing communications may be transferred to the alternative path. The initial communication path may be used to pass authentication and encryption information that may be used to establish the alternative path between the devices. The redirection of a communication stream may be performed by an interceptor inserted between the application layer and transport layer in a network stack of the communicating devices.
摘要翻译：可以分析和选择替代通信路径用于两个设备之间的正在进行的通信。一个或两个通信设备可以在这些路径上标识可用的通信路径和各种标识符。标识符可以是例如用于无线连接的基站，信标信号或可由设备接收的其他信息。在比较可用通信路径以识别一个或多个备选路径之后，正在进行的通信可以被传送到备选路径。初始通信路径可以用于传递可用于建立设备之间的替代路径的认证和加密信息。通信流的重定向可以由插入在通信设备的网络堆栈中的应用层和传输层之间的拦截器来执行。

29. 发明授权

US09176841B2 Estimating application energy usage in a target device 有权
标题翻译：估计目标设备中的应用能耗
公开(公告)号：US09176841B2
公开(公告)日：2015-11-03
申请号：US13339358
申请日：2011-12-28
申请人： Aman Kansal , Ranveer Chandra , Jie Liu , Paramvir Bahl
发明人： Aman Kansal , Ranveer Chandra , Jie Liu , Paramvir Bahl
IPC分类号： G06F9/44 , G06F11/34 , G06F11/30
CPC分类号： G06F11/3457 , G06F11/3062 , G06F2201/865 , Y02D10/34
摘要： Embodiments provide implementations for estimating a test application's energy usage on a target device based on execution of the test application. Resource usage associated with the execution of the test application is measured. The measured resource usage is input into a power model of the target device to estimate the energy that the test application uses when executed on the target device. An emulation system is configured to execute the test application in a virtual execution environment using resource scaling and simulated target device application programming interfaces to substantially simulate the corresponding capabilities of the target device.
摘要翻译：实施例提供了基于测试应用的执行来估计测试应用在目标设备上的能量使用的实现。测量与执行测试应用程序相关联的资源使用情况。测量的资源使用量被输入到目标设备的功率模型中，以估计在目标设备上执行时测试应用使用的能量。仿真系统被配置为使用资源缩放和模拟的目标设备应用编程接口在虚拟执行环境中执行测试应用，以基本上模拟目标设备的对应能力。

30. 发明授权

US09159236B2 Presentation of shared threat information in a transportation-related context 有权
标题翻译：在交通运输相关背景下介绍共享的威胁信息
公开(公告)号：US09159236B2
公开(公告)日：2015-10-13
申请号：US13434475
申请日：2012-03-29
申请人： Richard T. Lord , Robert W. Lord , Nathan P. Myhrvold , Clarence T. Tegreene , Roderick A. Hyde , Lowell L. Wood, Jr. , Muriel Y. Ishikawa , Victoria Y. H. Wood , Charles Whitmer , Paramvir Bahl , Douglas C. Burger , Ranveer Chandra , William H. Gates, III , Paul Holman , Jordin T. Kare , Craig J. Mundie , Tim Paek , Desney S. Tan , Lin Zhong , Matthew G. Dyor
发明人： Richard T. Lord , Robert W. Lord , Nathan P. Myhrvold , Clarence T. Tegreene , Roderick A. Hyde , Lowell L. Wood, Jr. , Muriel Y. Ishikawa , Victoria Y. H. Wood , Charles Whitmer , Paramvir Bahl , Douglas C. Burger , Ranveer Chandra , William H. Gates, III , Paul Holman , Jordin T. Kare , Craig J. Mundie , Tim Paek , Desney S. Tan , Lin Zhong , Matthew G. Dyor
IPC分类号： G08G1/16 , B60T17/22
CPC分类号： G08G1/164 , B60T17/22 , B60T2201/022 , B60T2210/36
摘要： Techniques for ability enhancement are described. In some embodiments, devices and systems located in a transportation network share threat information with one another, in order to enhance a user's ability to operate or function in a transportation-related context. In one embodiment, a process in a vehicle receives threat information from a remote device, the threat information based on information about objects or conditions proximate to the remote device. The process then determines that the threat information is relevant to the safe operation of the vehicle. Then, the process modifies operation of the vehicle based on the threat information, such as by presenting a message to the operator of the vehicle and/or controlling the vehicle itself.
摘要翻译：描述了能力提升的技术。在一些实施例中，位于运输网络中的设备和系统彼此共享威胁信息，以便增强用户在与交通相关的上下文中操作或运行的能力。在一个实施例中，车辆中的过程从远程设备接收威胁信息，所述威胁信息基于关于对象的信息或者靠近所述远程设备的条件。然后，该过程确定威胁信息与车辆的安全操作相关。然后，该过程基于威胁信息来修改车辆的操作，诸如通过向车辆的操作者呈现消息和/或控制车辆本身。

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