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    • 1. 发明申请
    • Method and apparatus for securing wireless communications
    • 用于确保无线通信的方法和装置
    • US20070053325A1
    • 2007-03-08
    • US11409668
    • 2006-04-24
    • Sung-Hyuk ShinYogendra ShahPrabhakar ChitrapuAlain Briancon
    • Sung-Hyuk ShinYogendra ShahPrabhakar ChitrapuAlain Briancon
    • H04B7/216
    • H04K1/00
    • 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.
    • 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。
    • 4. 发明申请
    • Laminated and tilled displays and methods of manufacturing the same
    • 层叠和耕作的显示器及其制造方法
    • US20080246748A1
    • 2008-10-09
    • US12077788
    • 2008-03-21
    • Micheal CassidyAlain BrianconDavid CorrMichael Ryan
    • Micheal CassidyAlain BrianconDavid CorrMichael Ryan
    • G09G3/00G02F1/133
    • G02F1/1533G02F1/13336G02F1/163
    • A display having a front plane, a back plane and a border edge. The display includes a color changing cell located behind the front plane of the device and a first and second electrically conducting attachment layer. The color changing cell includes an active color layer having at least one active color area. The active color layer is associated with a first electrically conducting layer which overlaps at least one active color area. The color changing cell also includes a counter layer associated with a second electrically conducting layer. A first electrically conducting attachment layer extends from the active color area and overlaps the first electrically conducting layer. A second electrically conducting attachment layer extends from the counter layer and overlaps the second electrically conducting layer. The display may be coupled to an electronic circuit for use in a variety of applications. The display may also be used to form a device having a plurality of displays.
    • 具有前平面,后平面和边缘的显示器。 显示器包括位于设备的前平面之后的变色单元以及第一和第二导电附着层。 变色单元包括具有至少一个有效颜色区域的活性色层。 有源彩色层与与至少一个有效颜色区域重叠的第一导电层相关联。 变色单元还包括与第二导电层相关联的对置层。 第一导电附着层从有源颜色区域延伸并与第一导电层重叠。 第二导电附着层从相对层延伸并与第二导电层重叠。 显示器可以耦合到用于各种应用的电子电路。 显示器也可以用于形成具有多个显示器的设备。
    • 6. 发明申请
    • Watermarking of recordings
    • 录音水印
    • US20050226461A1
    • 2005-10-13
    • US11077894
    • 2005-03-11
    • Steven GoldbergRichard HerschaftAlain BrianconPrabhakar ChitrapuAlan Carlton
    • Steven GoldbergRichard HerschaftAlain BrianconPrabhakar ChitrapuAlan Carlton
    • G06K9/00H04B1/00
    • G10L19/018G06T1/0021
    • 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.
    • 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。