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1. 发明授权

US07257411B2 Selective fusion location estimation (SELFLOC) for wireless access technologies 有权
标题翻译：无线接入技术的选择性融合位置估计（SELFLOC）
公开(公告)号：US07257411B2
公开(公告)日：2007-08-14
申请号：US10330523
申请日：2002-12-27
申请人： Youngjune Lee Gwon , Ravi Kumar Jain , Toshiro Kawahara
发明人： Youngjune Lee Gwon , Ravi Kumar Jain , Toshiro Kawahara
IPC分类号： H04B7/20
CPC分类号： H04W64/00 , G01S5/0252 , G01S5/0268 , G01S5/12
摘要： In an RF environment serviced by 802.11, Bluetooth(™), or other network transmitters, or combinations, location-estimation methods and systems can advantageously use redundancy to refine an estimated location of an RF receiver. In one embodiment, a method for finding a receiver's location includes receiving signals from fixed transmitters, calculating preliminary location estimates, and combining the estimates using predetermined reference information on the RF environment. The reference information preferably includes minimum mean-squared error optimizing coefficients.
摘要翻译：在由802.11，蓝牙（TM）或其他网络发射机或组合服务的RF环境中，位置估计方法和系统可以有利地使用冗余来细化RF接收机的估计位置。在一个实施例中，用于找到接收机位置的方法包括从固定发射机接收信号，计算初步位置估计，以及使用关于RF环境的预定参考信息来组合估计。参考信息优选地包括最小均方误差优化系数。

2. 发明授权

US07395073B2 Method and apparatus for location estimation using region of confidence filtering 有权
标题翻译：使用置信度滤波区域进行位置估计的方法和装置
公开(公告)号：US07395073B2
公开(公告)日：2008-07-01
申请号：US10792450
申请日：2004-03-02
申请人： Youngjune Lee Gwon , Ravi Kumar Jain , Toshiro Kawahara
发明人： Youngjune Lee Gwon , Ravi Kumar Jain , Toshiro Kawahara
IPC分类号： H04Q7/20
CPC分类号： G01S5/0252 , H04W64/00
摘要： A method for location estimation employs filtering in both the radio signal domain and the space domain separately. The method filters raw values of the run-time radio signal measurements to reject distorted inputs. A region of confidence (RoC) is formed according to certain algorithms. Only location estimates falling within the RoC are considered for further processing. The location estimate candidates filtered by the RoC are put in a number of time-indexed bins. Each of the bins contains location estimate candidates obtained at similar times. A shortest route connecting a candidate from each bin is calculated to further improve the accuracy of the location estimation.
摘要翻译：用于位置估计的方法分别在无线电信号域和空间域中进行滤波。该方法对运行时无线电信号测量的原始值进行过滤以拒绝失真的输入。根据某些算法形成置信区域（RoC）。只有位于RoC内的位置估算值才能进一步处理。由RoC过滤的位置估计候选者被放入多个时间索引箱中。每个箱包含在相似时间获得的位置估计候选。计算连接每个仓的候选人的最短路线，以进一步提高位置估计的准确性。

3. 发明授权

US08256015B2 Method and apparatus for authentication of data streams with adaptively controlled losses 失效
标题翻译：具有自适应控制损失的数据流认证方法和装置
公开(公告)号：US08256015B2
公开(公告)日：2012-08-28
申请号：US12560959
申请日：2009-09-16
申请人： Craig B. Gentry , Alejandro Hevia , Ravi Kumar Jain , Toshiro Kawahara , Zulfikar Amin Ramzan
发明人： Craig B. Gentry , Alejandro Hevia , Ravi Kumar Jain , Toshiro Kawahara , Zulfikar Amin Ramzan
IPC分类号： H04L29/06
CPC分类号： H04L9/3242 , G11B20/00086 , G11B20/0021 , H04L9/3247 , H04L2209/30 , H04L2209/34 , H04L2209/38 , H04L2209/80 , H04N7/1675
摘要： Methods, components, and systems for efficient authentication, either through a digital signature or message authentication codes, and verification of a digital stream sent from a source to a receiver via zero or more intermediaries, such that the source or intermediary (or both) can remove certain portions of the data stream without inhibiting the ability of the ultimate receiver to verify the authenticity and integrity of the data received. According to the invention, a source may sign an entire data stream once, but may permit either itself or an intermediary to efficiently remove certain portions of the stream before transmitting the stream to the ultimate recipient, without having to re-sign the entire stream. Applications may include the signing of media streams which often need to be further processed to accommodate the resource requirements of a particular environment. Another application allows an intermediary to choose an advertisement to include in a given slot.
摘要翻译：无论是通过数字签名还是消息认证码，以及通过零个或多个中间人从源向接收者发送的数字流的验证，使得源或中介（或两者）可以进行有效认证的方法，组件和系统删除数据流的某些部分，而不会妨碍最终接收者验证所接收数据的真实性和完整性的能力。根据本发明，源可以对整个数据流进行一次签名，但是可以允许其本身或中间人在将流发送到最终接收者之前有效地去除流的某些部分，而无需重新签署整个流。应用可以包括经常需要进一步处理以适应特定环境的资源需求的媒体流的签名。另一个应用允许中间人选择一个广告以包含在给定的时隙中。

4. 发明授权

US07995462B2 Method for supporting scalable and reliable multicast in TDMA/TDD systems using feedback suppression techniques 失效
标题翻译：使用反馈抑制技术在TDMA / TDD系统中支持可扩展和可靠的组播的方法
公开(公告)号：US07995462B2
公开(公告)日：2011-08-09
申请号：US11871858
申请日：2007-10-12
申请人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Kumar Jain , Toshiro Kawahara
发明人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Kumar Jain , Toshiro Kawahara
IPC分类号： G01R31/08
CPC分类号： H04L12/1868 , H04L1/0057 , H04L1/08 , H04L1/1621 , H04L1/1685 , H04L1/1819 , H04L5/1469 , H04L12/1863 , H04L12/189 , H04W8/26 , H04W74/04 , H04W76/40 , H04W84/00 , H04W84/04 , H04W84/12
摘要： A method supports scalable and reliable multicast in a wireless network with a large bandwidth-delay product. In this method, acknowledgement packets from different receivers experiencing the same number of data packets lost are assigned the same time slots. This method can be combined with other loss recovery techniques, such as forward error correction (FEC) recovery, proactive protection, feedback suppression and collision detection. Scalability is achieved as bandwidth usage relates only to the number of packets transmitted, rather than the number of receivers.
摘要翻译：一种方法支持具有大带宽延迟产品的无线网络中的可扩展和可靠的组播。在这种方法中，来自经历相同数量数据包丢失的不同接收机的确认分组被分配相同的时隙。该方法可以与其他丢失恢复技术相结合，如前向纠错（FEC）恢复，主动保护，反馈抑制和冲突检测。实现可扩展性，因为带宽使用仅与发送的分组的数量相关，而不是接收机的数量。

5. 发明申请

US20100005309A1 METHOD AND APPARATUS FOR AUTHENTICATION OF DATA STREAMS WITH ADAPTIVELY CONTROLLED LOSSES 失效
标题翻译：用于使用自适应控制损失验证数据流的方法和装置
公开(公告)号：US20100005309A1
公开(公告)日：2010-01-07
申请号：US12560959
申请日：2009-09-16
申请人： Craig B. Gentry , Alejandro Hevia , Ravi Kumar Jain , Toshiro Kawahara , Zulfikar Amin Ramzan
发明人： Craig B. Gentry , Alejandro Hevia , Ravi Kumar Jain , Toshiro Kawahara , Zulfikar Amin Ramzan
IPC分类号： H04L9/32 , G06F15/16
CPC分类号： H04L9/3242 , G11B20/00086 , G11B20/0021 , H04L9/3247 , H04L2209/30 , H04L2209/34 , H04L2209/38 , H04L2209/80 , H04N7/1675
摘要： Methods, components, and systems for efficient authentication, either through a digital signature or message authentication codes, and verification of a digital stream sent from a source to a receiver via zero or more intermediaries, such that the source or intermediary (or both) can remove certain portions of the data stream without inhibiting the ability of the ultimate receiver to verify the authenticity and integrity of the data received. According to the invention, a source may sign an entire data stream once, but may permit either itself or an intermediary to efficiently remove certain portions of the stream before transmitting the stream to the ultimate recipient, without having to re-sign the entire stream. Applications may include the signing of media streams which often need to be further processed to accommodate the resource requirements of a particular environment. Another application allows an intermediary to choose an advertisement to include in a given slot.
摘要翻译：无论是通过数字签名还是消息认证码，以及通过零个或多个中间人从源向接收者发送的数字流的验证，使得源或中介（或两者）可以进行有效认证的方法，组件和系统删除数据流的某些部分，而不会妨碍最终接收者验证所接收数据的真实性和完整性的能力。根据本发明，源可以对整个数据流进行一次签名，但是可以允许其本身或中间人在将流发送到最终接收者之前有效地去除流的某些部分，而无需重新签署整个流。应用可以包括经常需要进一步处理以适应特定环境的资源需求的媒体流的签名。另一个应用允许中间人选择一个广告以包含在给定的时隙中。

6. 发明申请

US20100005310A1 METHOD AND APPARATUS FOR AUTHENICATION OF DATA STREAMS WITH ADAPTIVELY CONTROLLED LOSSES 审中-公开
标题翻译：用于对具有适应性控制损失的数据流进行认证的方法和装置
公开(公告)号：US20100005310A1
公开(公告)日：2010-01-07
申请号：US12560963
申请日：2009-09-16
申请人： Craig B. Gentry , Alejandro Hevia , Ravi Kumar Jain , Toshiro Kawahara , Zulfikar Amin Ramzan
发明人： Craig B. Gentry , Alejandro Hevia , Ravi Kumar Jain , Toshiro Kawahara , Zulfikar Amin Ramzan
IPC分类号： H04L9/32
CPC分类号： H04L9/3242 , G11B20/00086 , G11B20/0021 , H04L9/3247 , H04L2209/30 , H04L2209/34 , H04L2209/38 , H04L2209/80 , H04N7/1675
摘要： Methods, components, and systems for efficient authentication, either through a digital signature or message authentication codes, and verification of a digital stream sent from a source to a receiver via zero or more intermediaries, such that the source or intermediary (or both) can remove certain portions of the data stream without inhibiting the ability of the ultimate receiver to verify the authenticity and integrity of the data received. According to the invention, a source may sign an entire data stream once, but may permit either itself or an intermediary to efficiently remove certain portions of the stream before transmitting the stream to the ultimate recipient, without having to re-sign the entire stream. Applications may include the signing of media streams which often need to be further processed to accommodate the resource requirements of a particular environment. Another application allows an intermediary to choose an advertisement to include in a given slot.
摘要翻译：无论是通过数字签名还是消息认证码，以及通过零个或多个中间人从源向接收者发送的数字流的验证，使得源或中介（或两者）可以进行有效认证的方法，组件和系统删除数据流的某些部分，而不会妨碍最终接收者验证所接收数据的真实性和完整性的能力。根据本发明，源可以对整个数据流进行一次签名，但是可以允许其本身或中间人在将流发送到最终接收者之前有效地去除流的某些部分，而无需重新签署整个流。应用可以包括经常需要进一步处理以适应特定环境的资源需求的媒体流的签名。另一个应用允许中间人选择一个广告以包含在给定的时隙中。

7. 发明授权

US07916739B2 Location privacy for internet protocol networks using cryptographically protected prefixes 有权
标题翻译：使用加密保护的前缀的互联网协议网络的位置隐私
公开(公告)号：US07916739B2
公开(公告)日：2011-03-29
申请号：US10851846
申请日：2004-05-20
申请人： Jonathan Trostle , Muhammad Mukarran Bin Tariq , Hosei Matsuoka , James Kempf , Ravi Kumar Jain , Toshiro Kawahara
发明人： Jonathan Trostle , Muhammad Mukarran Bin Tariq , Hosei Matsuoka , James Kempf , Ravi Kumar Jain , Toshiro Kawahara
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L63/0428 , H04L29/12009 , H04L61/00 , H04L63/0853 , H04L63/166
摘要： Cryptographically Protected Prefixes (“CPPs”) are used to create IP addresses, preventing any correlation between a CPP IP address and a host's geographic location. An IP address is subdivided into address prefixes of multiple segments. Each segment is encrypted with a cryptographic key known only to a subset of routers in the access network domain (or Privacy Domain). Therefore, each router obtains the information it needs to forward a packet of information, but not any additional information.
摘要翻译：密码保护前缀（“CPP”）用于创建IP地址，防止CPP IP地址与主机的地理位置之间的任何相关性。 IP地址被细分为多个段的地址前缀。每个段都使用仅在接入网络域（或隐私域）中的路由器的一部分已知的加密密钥进行加密。因此，每个路由器获得转发一个信息包所需的信息，但没有任何附加信息。

8. 发明授权

US07447148B2 Method for supporting scalable and reliable multicast in TDMA/TDD systems using feedback suppression techniques 失效
标题翻译：使用反馈抑制技术在TDMA / TDD系统中支持可扩展和可靠的组播的方法
公开(公告)号：US07447148B2
公开(公告)日：2008-11-04
申请号：US10552672
申请日：2004-10-14
申请人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Kumar Jain , Toshiro Kawahara
发明人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Kumar Jain , Toshiro Kawahara
IPC分类号： G01R31/08 , H04J1/16
CPC分类号： H04L12/1868 , H04L1/0057 , H04L1/08 , H04L1/1621 , H04L1/1685 , H04L1/1819 , H04L5/1469 , H04L12/1863 , H04L12/189 , H04W8/26 , H04W74/04 , H04W76/40 , H04W84/00 , H04W84/04 , H04W84/12
摘要： A method supports scalable and reliable multicast in a wireless network with a large bandwidth-delay product. In this method, acknowledgement packets from different receivers experiencing the same number of data packets lost are assigned the same time slots. This method can be combined with other loss recovery techniques, such as forward error correction (FEC) recovery, proactive protection, feedback suppression and collision detection. Scalability is achieved as bandwidth usage relates only to the number of packets transmitted, rather than the number of receivers.
摘要翻译：一种方法支持具有大带宽延迟产品的无线网络中的可扩展和可靠的组播。在这种方法中，来自经历相同数量数据包丢失的不同接收机的确认分组被分配相同的时隙。该方法可以与其他丢失恢复技术相结合，如前向纠错（FEC）恢复，主动保护，反馈抑制和冲突检测。实现可扩展性，因为带宽使用仅与发送的分组的数量相关，而不是接收机的数量。

9. 发明授权

US08340665B2 Fast active scanning wireless network apparatus and method 有权
标题翻译：快速主动扫描无线网络设备及方法
公开(公告)号：US08340665B2
公开(公告)日：2012-12-25
申请号：US12424217
申请日：2009-04-15
申请人： Moo Ryong Jeong , Fujio Wantanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Wantanabe , Toshiro Kawahara
IPC分类号： H04L12/28
CPC分类号： H04W48/14 , H04B7/022 , H04W48/16 , H04W48/20 , H04W74/08 , H04W84/12
摘要： In a fast active scanning wireless network apparatus and method for quick determination of available access points, information about a candidate set of available access points is obtained, and a candidate access point is identified from the candidate set. A mobile station then queries the candidate access point with a probe request that designates the candidate access point as a sole responder. The probe request prevents other access points from contending for the medium of communication between the mobile station and the designated sole responder access point by excluding the attempt by other access points to transmit probe responses. The apparatus and method thus increases the probability of a fast and successful probe request from the mobile station and subsequent response from the designated access point. The designated access point may also respond with a probe response of high priority, preventing intervention of communication.
摘要翻译：在用于快速确定可用接入点的快速主动扫描无线网络装置和方法中，获得关于可用接入点的候选组的信息，并从候选集中识别候选接入点。移动台然后用指定候选接入点的探测请求作为唯一响应者来查询候选接入点。探测请求通过排除其他接入点的尝试以发送探测响应来防止其他接入点竞争移动台和指定的唯一响应者接入点之间的通信介质。因此，装置和方法增加了来自移动台的快速和成功的探测请求的概率以及从指定的接入点的后续响应。指定的接入点也可以以高优先级的探测响应进行响应，防止通信干扰。

10. 发明申请

US20090175454A1 WIRELESS NETWORK HANDOFF KEY 审中-公开
标题翻译：无线网络切换键
公开(公告)号：US20090175454A1
公开(公告)日：2009-07-09
申请号：US12402343
申请日：2009-03-11
申请人： Fujio Watanabe , Craig B. Gentry , Gang Wu , Toshiro Kawahara
发明人： Fujio Watanabe , Craig B. Gentry , Gang Wu , Toshiro Kawahara
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L63/0428 , H04L63/061 , H04L2209/80 , H04W12/0013 , H04W12/04 , H04W36/0011 , H04W80/02
摘要： The present invention provides a method and system for handoff in a wireless communication network. In one embodiment, a common handoff encryption key is generated by an authentication server and transmitted to a first access point and a second access point. The first access point transmits the handoff encryption key to a wireless terminal. The wireless terminal encrypts output data with the handoff encryption key. When the wireless terminal is associated with the second access point, the second access point decrypts data from the wireless terminal with the handoff encryption key. In a second embodiment, a handoff WEP key generation secret parameter is provided to a first and a second access point. Both access points generate a handoff WEP key as a function of the handoff WEP key generation secret parameter and an address of a wireless terminal. The first access point transmits the handoff WEP key to the wireless terminal. The second access point communicates data packets encrypted with the handoff WEP key with the wireless terminal.
摘要翻译：本发明提供了一种用于无线通信网络中切换的方法和系统。在一个实施例中，公共切换加密密钥由认证服务器生成并被发送到第一接入点和第二接入点。第一接入点将切换加密密钥发送到无线终端。无线终端用切换加密密钥加密输出数据。当无线终端与第二接入点相关联时，第二接入点利用切换加密密钥从无线终端解密数据。在第二实施例中，将切换WEP密钥生成秘密参数提供给第一和第二接入点。两个接入点根据切换WEP密钥生成秘密参数和无线终端的地址生成切换WEP密钥。第一接入点将切换WEP密钥发送到无线终端。第二接入点将与切换WEP密钥一起加密的数据分组与无线终端进行通信。

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