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    Method and system for securing wireless communications
    2.
    发明申请
    Method and system for securing wireless communications 审中-公开
    用于确保无线通信的方法和系统

    公开(公告)号：US20060133338A1

    公开(公告)日：2006-06-22

    申请号：US11283017

    申请日：2005-11-18

    申请人： Alexander Reznik ,  Alan Carlton ,  Alain Briancon ,  Yogendra Shah ,  Prabhakar Chitrapu ,  Rajat Mukherjee ,  Marian Rudolf

    发明人： Alexander Reznik ,  Alan Carlton ,  Alain Briancon ,  Yogendra Shah ,  Prabhakar Chitrapu ,  Rajat Mukherjee ,  Marian Rudolf

    IPC分类号： H04Q7/24

    CPC分类号： H04W12/08 ,  H04L27/3477 ,  H04L63/107 ,  H04W12/00503 ,  H04W12/02 ,  H04W12/12 ,  H04W16/30

    摘要： A method and system for securing wireless communications is disclosed. In one embodiment, different security policies are used based on the distance between a receiver and a transmitter, whereby data in the wireless communications can only be demodulated if received in particular trust zones. In another embodiment, a plurality of bit stream fragments are transmitted by a plurality of transmitters to a receiver located in an area where transmission patterns radiated by the transmitters intersect. Alternatively, the receiver performs a function on packet data units (PDUs) transmitted by the transmitters. In yet another embodiment, primary modulation points of a modulation constellation are split into clusters of proximate secondary modulation points which can be demodulated only by a receiver that is within range of the transmitter. In yet another embodiment, a main waveform is transmitted which overlays a QPSK signal with hierarchical modulation (HM) having encoded descrambling information.

    摘要翻译： 公开了一种用于确保无线通信的方法和系统。 在一个实施例中，基于接收机和发射机之间的距离使用不同的安全策略，由此无线通信中的数据只有在特定的信任区域中被接收时才能被解调。 在另一个实施例中，多个比特流片段由多个发射机发射到位于由发射机辐射的传输模式相交的区域中的接收机。 或者，接收机对发射机发送的分组数据单元（PDU）执行功能。 在另一个实施例中，调制星座的初级调制点被分成近似二次调制点的簇，其可以仅由位于发射机的范围内的接收机解调。 在另一个实施例中，发送主波形，其叠加具有编码解扰信息的分层调制（HM）的QPSK信号。

    Method and apparatus for securing wireless communications
    4.
    发明申请
    Method and apparatus for securing wireless communications 审中-公开
    用于确保无线通信的方法和装置

    公开(公告)号：US20070053325A1

    公开(公告)日：2007-03-08

    申请号：US11409668

    申请日：2006-04-24

    申请人： Sung-Hyuk Shin ,  Yogendra Shah ,  Prabhakar Chitrapu ,  Alain Briancon

    发明人： Sung-Hyuk Shin ,  Yogendra Shah ,  Prabhakar Chitrapu ,  Alain Briancon

    IPC分类号： H04B7/216

    CPC分类号： H04K1/00

    摘要： A method and apparatus for securing wireless communications are disclosed. A watermark message is encoded to watermark message symbols. A cover message is encoded to cover message symbols. The watermark message symbols are then overlaid onto the cover message symbols to generate a watermark-embedded cover message in a physical layer. The watermark message symbols have a substantially lower amplitude than the cover message symbols. Thus, the watermark message introduces small perturbation around the constellation points of the cover message symbols. The watermark message symbol may span or spread over a plurality of cover message symbols and may be encrypted with a secret key. The watermark message is used for improving receiver performance by transmitting additional information or for security enhancement purposes. The watermarking function may be selectively turned on and off.

    摘要翻译： 公开了一种用于确保无线通信的方法和装置。 水印消息被编码为水印消息符号。 封面信息被编码以覆盖消息符号。 然后将水印消息符号覆盖到封面消息符号上，以在物理层中生成嵌入水印的封面消息。 水印消息符号具有比覆盖消息符号大得多的幅度。 因此，水印消息在覆盖消息符号的星座点周围引入小的扰动。 水印消息符号可以覆盖多个封面消息符号并且可以用秘密密钥加密。 水印消息用于通过发送附加信息或为了安全增强目的来改善接收机性能。 可以选择性地打开和关闭水印功能。

    Watermarking of recordings
    7.
    发明申请
    Watermarking of recordings 失效
    录音水印

    公开(公告)号：US20050226461A1

    公开(公告)日：2005-10-13

    申请号：US11077894

    申请日：2005-03-11

    申请人： Steven Goldberg ,  Richard Herschaft ,  Alain Briancon ,  Prabhakar Chitrapu ,  Alan Carlton

    发明人： Steven Goldberg ,  Richard Herschaft ,  Alain Briancon ,  Prabhakar Chitrapu ,  Alan Carlton

    IPC分类号： G06K9/00 ,  H04B1/00

    CPC分类号： G10L19/018 ,  G06T1/0021

    摘要： Signals encoded with watermark information are generated and broadcast into a protected area for capture by illicit recording devices along with their intended targets. An illicit recording in which at least a portion of the broadcast watermark signals are recorded is obtained and correlated with a known position of the broadcast watermark signals to yield the location of illicit recording devices. In an alternate embodiment, a surveillance device, being image and time synchronized with a signal broadcasting device, monitors and records the protected area. Illicit recordings containing the broadcast watermark are obtained and correlated with corresponding recordings taken by the surveillance device to identify the location of illicit recording devices. In an alternate embodiment, the surveillance device further monitors the quality of the broadcast watermark signals and adjusts them accordingly to achieve a desired quality level.

    摘要翻译： 生成用水印信息编码的信号，并将其广播到被保护的区域，以供非法记录装置与其预期目标一起捕获。 获得其中记录了广播水印信号的至少一部分的非法记录，并与广播水印信号的已知位置相关联，以产生非法记录装置的位置。 在替代实施例中，与信号广播设备同时进行图像和时间同步的监视设备监视和记录保护区域。 获得包含广播水印的非法记录，并与监视设备拍摄的相应记录相关联，以识别非法记录设备的位置。 在替代实施例中，监视装置还监视广播水印信号的质量并相应地调整它们以实现期望的质量水平。

    User directed background transfer and data storage
    9.
    发明申请
    User directed background transfer and data storage 审中-公开
    用户指导后台传输和数据存储

    公开(公告)号：US20050195830A1

    公开(公告)日：2005-09-08

    申请号：US11059205

    申请日：2005-02-16

    申请人： Prabhakar Chitrapu ,  Alain Briancon ,  John Kaewell

    发明人： Prabhakar Chitrapu ,  Alain Briancon ,  John Kaewell

    IPC分类号： H04L12/28

    CPC分类号： H04L67/06 ,  H04L67/04 ,  H04W72/02 ,  H04W88/02

    摘要： One embodiment of the present invention, file transfers are performed in a wireless communication network between a wireless transmit/receive unit (WTRU) and a location external to the WTRU for purposes of utilizing the data under predetermined conditions. In another embodiment, file transfer is performed by determining conditions for file transfer using the WTRU. The file transfer takes place subject to the determined conditions, and using the WTRU to automatically request the file transfer in response to the existence of the determined conditions.

    摘要翻译： 在本发明的一个实施例中，在无线发射/接收单元（WTRU）和WTRU外部的位置的无线通信网络中执行文件传输，以便在预定条件下利用数据。 在另一个实施例中，通过使用WTRU确定文件传输的条件来执行文件传送。 文件传输是根据确定的条件进行的，并且使用WTRU响应于确定的条件的存在来自动请求文件传送。

    System and method for providing variable security level in a wireless communication system
    10.
    发明申请
    System and method for providing variable security level in a wireless communication system 有权
    在无线通信系统中提供可变安全级别的系统和方法

    公开(公告)号：US20070140494A1

    公开(公告)日：2007-06-21

    申请号：US11241429

    申请日：2005-09-30

    申请人： Akinlolu Kumoluyi ,  Alexander Reznik ,  Guodong Zhang ,  Prabhakar Chitrapu ,  Sung-Hyuk Shin ,  Yingming Tsai

    发明人： Akinlolu Kumoluyi ,  Alexander Reznik ,  Guodong Zhang ,  Prabhakar Chitrapu ,  Sung-Hyuk Shin ,  Yingming Tsai

    IPC分类号： H04K1/00

    CPC分类号： H04W12/08 ,  H04L9/088 ,  H04L63/04 ,  H04L63/105 ,  H04L63/1441 ,  H04L63/20 ,  H04L2209/80 ,  H04W12/04 ,  H04W12/12

    摘要： A system and method for providing variable security levels in a wireless communication network. The present invention optimizes the often conflicting demands of highly secure wireless communications and high speed wireless communications. According to a preferred embodiment of the present invention, various security sensors are scanned to determine the likely presence of an intruder within a predetermined trust zone. If an intruder is likely present, the security level is changed to the highest setting, and consequently a lower data rate, while the intruder is identified. If the identified intruder is in fact a trusted node, the security level is returned to a lower setting. If the identified intruder is not a trusted node, the security level is maintained at an elevated state while the intruder is within the trust zone.

    摘要翻译： 一种用于在无线通信网络中提供可变安全级别的系统和方法。 本发明优化了高度安全的无线通信和高速无线通信的经常冲突的需求。 根据本发明的优选实施例，扫描各种安全传感器以确定入侵者在预定信任区域内的可能存在。 如果入侵者可能存在，则安全级别将更改为最高设置，从而更低的数据速率，同时入侵者被识别。 如果识别的入侵者实际上是可信节点，那么安全级别将返回到较低的设置。 如果识别的入侵者不是可信节点，则入侵者在信任区域内时，安全级别保持在升高的状态。