专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

US20110173485A1 FEC IN COGNITIVE MULTI-USER OFDMA 有权
标题翻译： FEC在认知多用户中的应用
公开(公告)号：US20110173485A1
公开(公告)日：2011-07-14
申请号：US13052667
申请日：2011-03-21
申请人： Amer A. Hassan , Christian Huitema , Wayne Stark , Yunnan Wu , Philip Andrew Chou
发明人： Amer A. Hassan , Christian Huitema , Wayne Stark , Yunnan Wu , Philip Andrew Chou
IPC分类号： G06F11/07
CPC分类号： H04W72/08 , H04L1/0045 , H04L1/0071 , H04L5/0007 , H04L5/0041 , H04L5/0046 , H04L5/0058 , H04L5/006 , H04L2001/0093
摘要： A multiuser scheme allowing for a number of users, sets of user, or carriers to share one or more channels is provided. In the invention, the available channel bandwidth is subdivided into a number of equal-bandwidth subchannels according to standard OFDM practice. A transmitter transmits data on a set of OFDM subchannels that need not be contiguous in the spectrum or belong to the same OFDM channel. A receiver receives and decodes the data and detects errors on subchannels. The receiver then broadcasts the identity of those subchannels on which the error rate exceeds a specific threshold, and the transmitter may select different subchannels for transmission based on this information.
摘要翻译：提供允许多个用户，一组用户或运营商共享一个或多个信道的多用户方案。在本发明中，可用信道带宽根据标准OFDM实践被细分为多个等带宽子信道。发射机在不需要在频谱中连续或属于相同OFDM信道的一组OFDM子信道上发送数据。接收器接收并解码数据并检测子信道上的错误。然后，接收机广播差错率超过特定阈值的子信道的身份，并且发射机可以基于该信息来选择用于发送的不同子信道。

72. 发明申请

US20090214036A1 AUTHENTICATION MECHANISMS FOR WIRELESS NETWORKS 有权
标题翻译：无线网络认证机制
公开(公告)号：US20090214036A1
公开(公告)日：2009-08-27
申请号：US12035531
申请日：2008-02-22
申请人： Hui Shen , Amer A. Hassan , Yi Lu , Thomas W. Kuehnel , Andrew T. Baron , Deyun Wu
发明人： Hui Shen , Amer A. Hassan , Yi Lu , Thomas W. Kuehnel , Andrew T. Baron , Deyun Wu
IPC分类号： G06F7/04 , H04K1/00
CPC分类号： H04W12/06 , G06Q30/02 , G06Q30/0251 , G06Q30/0267 , G06Q30/0277 , H04L9/30 , H04L9/3263 , H04L9/3271 , H04L63/0442 , H04L63/0823 , H04L63/123 , H04L63/126 , H04L2209/56 , H04L2209/60 , H04L2209/805 , H04W4/00 , H04W4/02 , H04W4/80 , H04W12/04 , H04W12/08 , H04W12/10 , H04W12/12 , H04W48/08 , H04W48/16 , H04W84/12
摘要： Security techniques and security mechanisms for wireless networks that transmit content such as advertisements. According to exemplary techniques, control messages comprising unrequested content (e.g., advertisement data) may be transmitted in response to a request from a client device, while in other exemplary techniques the control messages may be transmitted without any request from a client device. In some exemplary implementations, security mechanisms such as public key cryptography algorithms may be used to secure transmissions. In some of these techniques which implement public key cryptography, a user may be required to retrieve a public key from a source other than the wireless access point transmitting encrypted advertisements (e.g., a sign or terminal in a commercial entity transmitting such advertisements, or from a web service), such that the user may confirm that the encrypted content is from a source matching the retrieved public key and thus confirm the authenticity of a wireless access point.
摘要翻译：用于传输诸如广告等内容的无线网络的安全技术和安全机制。根据示例性技术，可以响应于来自客户端设备的请求来发送包括未请求的内容（例如，广告数据）的控制消息，而在其他示例性技术中，可以在没有来自客户端设备的请求的情况下发送控制消息。在一些示例性实现中，可以使用诸如公钥密码学算法的安全机制来保护传输。在实现公钥加密的这些技术中的一些技术中，可能需要用户从除了发送加密广告的无线接入点之外的源（例如，在发送这样的广告的商业实体中的标志或终端，或从 Web服务），使得用户可以确认加密的内容来自与所检索的公钥相匹配的源，从而确认无线接入点的真实性。

73. 发明申请

US20090175182A1 Differentiated service transmission parameters adaptation 审中-公开
标题翻译：差分服务传输参数适应
公开(公告)号：US20090175182A1
公开(公告)日：2009-07-09
申请号：US12006864
申请日：2008-01-07
申请人： Hui Shen , Jiandong Ruan , Kun Tan , Jiansong Zhang , Amer A. Hassan , Bernard D. Aboba , Yi Lu , Tong Zhou
发明人： Hui Shen , Jiandong Ruan , Kun Tan , Jiansong Zhang , Amer A. Hassan , Bernard D. Aboba , Yi Lu , Tong Zhou
IPC分类号： G06F11/30
CPC分类号： H04W28/18
摘要： Systems and methods are provided for transmitting data on a wireless network. Some embodiments provide a technique whereby a type is determined for the transmission, at least one metric is determined for the transmission based at least in part on the transmission type and/or an indication of conditions on the channel on which the transmission is to be performed, at least one transmission parameter to be used in performing the transmission is selected to optimize the at least one metric, and the data is transmitted in accordance with the at least one transmission parameter.
摘要翻译：提供了用于在无线网络上传输数据的系统和方法。一些实施例提供了一种技术，其中为传输确定类型，至少部分地基于传输类型和/或要在其上执行传输的信道上的条件的指示来确定传输的至少一个度量选择要在执行传输中使用的至少一个传输参数以优化所述至少一个度量，并且根据所述至少一个传输参数传输所述数据。

74. 发明申请

US20080182513A1 High Frequency Communications 审中-公开
标题翻译：高频通信
公开(公告)号：US20080182513A1
公开(公告)日：2008-07-31
申请号：US11668281
申请日：2007-01-29
申请人： Amer A. Hassan , David Jones , Thomas W. Kuehnel , Taroon Mandhana
发明人： Amer A. Hassan , David Jones , Thomas W. Kuehnel , Taroon Mandhana
IPC分类号： H04B7/00
CPC分类号： H04W76/10 , H04W28/18 , H04W68/00
摘要： If the first device has capability to communicate in the 60 GHz range, the first device may use a 60 GHz transceiver to communicate through the first antenna a request to communicate with the second device. At the first antenna of the first device, a notification may be received from the second antenna on the second device whether the second device has granted the first device permission to communicate with the first device; and if the first device receives permission to communicate with the second device, the first device may communicate with the second device.
摘要翻译：如果第一设备具有在60GHz范围内进行通信的能力，则第一设备可以使用60GHz收发器来通过第一天线通信与第二设备通信的请求。在第一设备的第一天线处，可以从第二设备上的第二天线接收通知，无论第二设备是否允许第一设备许可与第一设备通信; 并且如果第一设备接收到与第二设备通信的许可，则第一设备可以与第二设备通信。

75. 发明申请

US20070255837A1 Providing guest users network access based on information read from a mobile telephone or other object 有权
标题翻译：基于从移动电话或其他对象读取的信息来提供访客用户网络访问
公开(公告)号：US20070255837A1
公开(公告)日：2007-11-01
申请号：US11490591
申请日：2006-07-21
申请人： Amer A. Hassan , Andrew T. Baron , Christian Huitema , Deyun Wu , Mahmood H. Khadeer , Vishesh M. Parikh , Wajih Yahyaoui
发明人： Amer A. Hassan , Andrew T. Baron , Christian Huitema , Deyun Wu , Mahmood H. Khadeer , Vishesh M. Parikh , Wajih Yahyaoui
IPC分类号： G06F15/16
CPC分类号： H04L63/0853 , H04L63/104 , H04W12/04 , H04W12/08
摘要： Guest user are enabled to access network resources through an enterprise network using a guest user account. A guest user account may be created for a guest for a limited time. Guest account credentials of the guest account may be provided to the guest to use the guest account using any of a variety of techniques described herein, for example, by scanning a guest access card, credit card or mobile telephone of guest user, and providing the guest account credentials to the user based on the information obtained. A guest access management server may be configured to generate and maintain guest accounts, authenticate guest users, and track and log guest activity. A VLAN technology may be used to separate guest traffic from host enterprise traffic on the host enterprise network. After a guest user is authenticated, communications to and from the guest user may be routed to a guest VLAN.
摘要翻译：访客用户启用访问用户帐户通过企业网络访问网络资源。可以在有限的时间内为访客创建访客用户帐户。访客帐户的访客帐户凭证可以被提供给访客以使用本文描述的各种技术中的任何一种使用客户账户，例如通过扫描访客用户的访客访问卡，信用卡或移动电话，并且提供基于获取的信息向用户提供客户帐户凭据。访客访问管理服务器可以被配置为生成和维护访客帐户，验证访客用户以及跟踪和记录访客活动。可以使用VLAN技术将客户流量与主机企业网络上的主机企业流量进行分离。在访客用户被认证之后，与来宾用户的通信可以被路由到来宾VLAN。

76. 发明授权

US06581179B1 Methods for generating side information in the presence of time-selective fading 失效
标题翻译：在存在时间选择性衰落的情况下生成副信息的方法
公开(公告)号：US06581179B1
公开(公告)日：2003-06-17
申请号：US08669937
申请日：1996-06-25
申请人： Amer A. Hassan
发明人： Amer A. Hassan
IPC分类号： H03M1345
CPC分类号： H04B7/2643 , H03M13/1515 , H03M13/19 , H03M13/2906 , H03M13/3707 , H03M13/612 , H04L1/0045 , H04L1/0065
摘要： A method and apparatus for decoding digitally encoded communication signals transmitted over a fading channel. According to the disclosed embodiments, a sequence of test bits are transmitted in each TDMA slots, and a mathematical distance (e.g., a Hamming or Euclidean distance) is calculated and used to determine reliability information indicative of the reliability of the bits or symbols in a received time slot. Alternatively, a concatenated coding scheme can be used to transmit digital communication signals. Reliability information can be generated using the inner code and the output of the inner decoder.
摘要翻译：一种用于解码通过衰落信道发送的经数字编码的通信信号的方法和装置。根据所公开的实施例，在每个TDMA时隙中发送测试比特序列，并且计算数学距离（例如，汉明或欧几里德距离），并用于确定指示在一个或多个位置中的比特或符号的可靠性的可靠性信息收到时间段或者，可以使用级联编码方案来发送数字通信信号。可以使用内部代码和内部解码器的输出来生成可靠性信息。

77. 发明授权

US06314081B1 High power short message service using dedicated carrier frequency 失效
标题翻译：使用专用载波频率的大功率短信业务
公开(公告)号：US06314081B1
公开(公告)日：2001-11-06
申请号：US08588507
申请日：1996-01-18
申请人： Sandeep Chennakeshu , Nils Rydbeck , Amer A. Hassan , Paul W. Dent
发明人： Sandeep Chennakeshu , Nils Rydbeck , Amer A. Hassan , Paul W. Dent
IPC分类号： H04J1100
CPC分类号： H04W4/14 , H04B7/18567
摘要： A communication system and method for transmitting relatively short data messages in the communication system. A dedicated frequency is sequentially switched into each of a plurality of satellite beams or traffic channels to transmit data messages at an increased power level to provide an increased signal margin. The increased power level of the dedicated frequency can be combined with coding and bit and message repetition to further increase the signal margin.
摘要翻译：一种用于在通信系统中发送相对短的数据消息的通信系统和方法。专用频率被顺序地切换到多个卫星波束或业务信道中的每一个以在增加的功率电平上发送数据消息以提供增加的信号余量。专用频率的增加的功率电平可以与编码和比特和消息重复组合以进一步增加信号余量。

78. 发明授权

US06301231B1 Satellite communication system with variable rate satellite link diversity 失效
标题翻译：具有可变速率卫星链路多样性的卫星通信系统
公开(公告)号：US06301231B1
公开(公告)日：2001-10-09
申请号：US09089192
申请日：1998-06-02
申请人： Amer A. Hassan , Mark E. Lundstrom , John A. Zukoski
发明人： Amer A. Hassan , Mark E. Lundstrom , John A. Zukoski
IPC分类号： H04B7185
CPC分类号： H04B7/18534
摘要： A satellite communication system includes Earth-based terminal and a satellite constellation in non-geosynchronous Earth orbits. When two or more satellites are within range of a first Earth-based terminal, the station requests a communication link with the first satellite at a first data rate. If the first satellite will accept data transfer at the first communication rate, the first Earth-based terminal transmits data to the first satellite at the requested first data rate. If, however, the first satellite will not accept data transfer at the requested first data rate, the first Earth-based terminal transmits a first portion of the data to the first satellite at a second data rate and transmits a second portion of the data, different from the first portion of the data, to the second satellite at a third data rate. The first and second satellites relay the respective data portions to a second Earth-based terminal, either directly or via additional satellites. The second Earth-based terminal reassembles the first and second data portions to recover the original data. The data transfer may be unequal error correction encoded data whereby the second Earth-based terminal may recover the original data from only a portion of the received error correction encoded data.
摘要翻译：卫星通信系统包括地球终端和非地球同步地球轨道中的卫星星座。当两个或更多个卫星在第一地球终端的范围内时，站以第一数据速率请求与第一卫星的通信链路。如果第一卫星将以第一通信速率接受数据传输，则第一地基终端以所请求的第一数据速率向第一卫星发送数据。然而，如果第一卫星不以所请求的第一数据速率接受数据传输，则第一地基终端以第二数据速率向第一卫星发送数据的第一部分，并发送数据的第二部分，不同于数据的第一部分，以第三数据速率传送到第二卫星。第一和第二卫星直接地或经由附加的卫星将相应的数据部分中继到第二个基于地球的终端。第二个基于地球的终端重新组合第一和第二数据部分以恢复原始数据。数据传输可以是不等的纠错编码数据，由此第二地基终端可以仅从接收的纠错编码数据的一部分恢复原始数据。

79. 发明授权

US06192503B1 Communications system and methods employing selective recursive decording 失效
标题翻译：通信系统和方法采用选择性递归解码
公开(公告)号：US06192503B1
公开(公告)日：2001-02-20
申请号：US08911149
申请日：1997-08-14
申请人： Sandeep Chennakeshu , Amer A. Hassan
发明人： Sandeep Chennakeshu , Amer A. Hassan
IPC分类号： H03M1303
CPC分类号： H04L1/005 , H03M13/2975 , H04L1/0055 , H04L1/0066 , H04L1/007
摘要： A source sequence of symbols is communicated over a communications medium by encoding the source sequence according to respective first and second error correction codes to produce respective first and second encoded sequences of symbols. The first and second encoded sequences are processed to produce a communications signal, which is then communicated over the communications medium. The communicated communications signal is processed to produce first and second received sequences of symbols corresponding to the first and second encoded sequences, respectively. The first and second received sequences are selectively recursively decoded according to the associated error correction codes augmented by previous estimates of a symbol of the source sequence to repeatedly produce revised estimates of the symbol until an estimate satisfying a predetermined reliability criteria is obtained.
摘要翻译：通过在源通信介质上通过根据相应的第一和第二纠错码对源序列进行编码来传送符号的源序列，以产生相应的第一和第二编码符号序列。处理第一和第二编码序列以产生通信信号，然后通信信号在通信介质上传送。所传送的通信信号被处理以分别产生对应于第一和第二编码序列的第一和第二接收的符号序列。根据由源序列的符号的先前估计增加的相关联的纠错码来选择性地递归地解码第一和第二接收序列，以重复产生符号的修正估计，直到获得满足预定可靠性标准的估计。

80. 发明授权

US5914942A Satellite communications system with dual mode bandwidth control 失效
标题翻译：具有双模带宽控制的卫星通信系统
公开(公告)号：US5914942A
公开(公告)日：1999-06-22
申请号：US736954
申请日：1996-10-25
申请人： Amer A. Hassan , Stanley L. Reinhold , Nils Rutger Rydbeck
发明人： Amer A. Hassan , Stanley L. Reinhold , Nils Rutger Rydbeck
IPC分类号： H04B7/26 , H04B7/15 , H04B7/185
CPC分类号： H04B7/18563
摘要： A satellite-cellular communication system includes a satellite based transceiver for transceiving two-way communications originated at a user terminal. As a part of call set up, a controller determines whether the user terminal should transmit in the uplink in either a wide band mode of operation or in a narrow band mode of operation. The controller then specifies to the user terminal the mode of operation through the transceiver.Whether the user terminal transmits in the uplink in a wide band or in a narrow band mode depends upon factors including the type of device, channel usage and efficiency in the channels to and from the satellite transceiver and the signal quality of the signals received at the transceiver.
摘要翻译：卫星蜂窝通信系统包括用于收发在用户终端发起的双向通信的基于卫星的收发信机。作为呼叫建立的一部分，控制器确定用户终端是应在宽带操作模式还是在窄带操作模式中在上行链路中进行发送。然后，控制器通过收发器向用户终端指定操作模式。用户终端在宽带还是窄带模式下在上行链路中的发送取决于包括设备类型，信道使用情况以及卫星收发信机的频道使用效率以及在卫星收发信机接收的信号的信号质量等因素。收发器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式