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    • 42. 发明授权
    • Method and apparatus for performing error correction on a signal
received by a radio communication device
    • 对由无线电通信装置接收的信号执行纠错的方法和装置
    • US5426653A
    • 1995-06-20
    • US98190
    • 1993-07-28
    • David HayesCharles E. Batey, Jr.Joan S. DeLuca
    • David HayesCharles E. Batey, Jr.Joan S. DeLuca
    • H04L1/00H04L1/08
    • H04L1/0045H04L1/08
    • A radio communication device (100) receives a radio frequency (RF) signal comprising at least first, second, and third words which include message information and error correction information, wherein the second and third words are redundant words associated with the first word. A processing unit (120) included in the radio communication device (100) compares each corresponding bit of the first, second, and third words to determine, for each corresponding bit, which of first and second bit values is a majority bit value and generates a fourth word which includes a bit for each corresponding bit, wherein each bit of the fourth word has a value equivalent to the majority bit value corresponding thereto. Error correction circuitry (135) coupled to the processing unit (120) performs error correction on each of the first, second, third, and fourth words utilizing the error correction information, subsequent to which the processing unit (120) selects message information included in one of the first, second, third, and fourth words for presentation when at least one of the first, second, third, and fourth words has been corrected.
    • 无线电通信设备(100)接收包括至少包括消息信息和纠错信息的第一,第二和第三个字的射频(RF)信号,其中第二和第三个字是与第一个字相关联的冗余字。 包括在无线电通信设备(100)中的处理单元(120)比较第一,第二和第三字的每个相应位,以针对每个对应的比特确定第一和第二比特值中的哪一个是多数比特值并产生 包括每个对应位的位的第四字,其中第四字的每个位具有与其对应的多数位值相等的值。 耦合到处理单元(120)的纠错电路(135)利用纠错信息对第一,第二,第三和第四字中的每一个执行纠错,随后处理单元(120)选择包括在 当第一,第二,第三和第四字中的至少一个已经被校正时,用于呈现的第一,第二,第三和第四字之一。
    • 46. 发明授权
    • Selectable beam antenna
    • 可选波束天线
    • US08159394B2
    • 2012-04-17
    • US12448927
    • 2008-01-15
    • David HayesRichard Brooke Keeton
    • David HayesRichard Brooke Keeton
    • H01Q3/00
    • H01Q1/246H01Q3/242H01Q3/2682H01Q3/28H01Q21/205
    • A selectable beam antenna of generally linear, polygonal, planar or polyhedral form, able to operate at microwave and millimetre wave frequencies, and constructed from associated networks that incorporate radio frequency switches, time delays and amplitude weights positioned within a set of interleaved transmission, lines or waveguides to simultaneously perform both beam-forming and beam selection operations, which selectable beam antenna comprises: (i) a single RP antenna port connected to a 1-to-N corporate feed means, where N is greater than or equal to 2; (ii) a EF switch network means of N/q multi-pole-multi-throw radio frequency switch means (qPMT) connected to the corporate feed means; (iii) a RF distribution means of N×M singularly or multiply interleaved lines arranged so as to have approximately equal transmission length connected to the switch means, where M is the number of throws associated with each radio frequency switch means (qPMT); (iv) an antenna launch means of M×M interleaved antenna element sub-groups of S linear or planar elements, where S is greater than or equal to one, σorporately connected to the distribution means and arranged to closely follow at sub-wavelength intervals a closed are or segment of a closed surface; and (v) an overall electronic control means to set all radio frequency switches in such a way to select, to time delay and to amplitude weight the activated interleaved antenna launch elements and thus generate one of the possible directed, antenna beams.
    • 具有大致线性,多边形,平面或多面体形式的可选择的波束天线,其能够在微波和毫米波频率下操作,并且由相关联的网络构成,所述相关网络包含位于一组交错传输线内的射频开关,时间延迟和幅度权重 或波导以同时执行波束形成和波束选择操作,该可选择波束天线包括:(i)连接到1对N公司馈送装置的单个RP天线端口,其中N大于或等于2; (ii)连接到公司馈送装置的N / q多极多掷射频切换装置(qPMT)的EF切换网络装置; (iii)N×M个奇异或乘法交错线的RF分配装置,其布置成具有连接到开关装置的大致相等的传输长度,其中M是与每个射频切换装置(qPMT)相关联的掷出次数。 (iv)S个线性或平面元件的M×M个交错天线元件子组的天线发射装置,其中S大于或等于1,并且连接到分配装置, 封闭的波长间隔或封闭表面的段; 和(v)整体电子控制装置,用于设置所有射频开关以选择对激活的交错天线发射元件进行时间延迟和幅度加权,从而生成可能的有向天线波束之一。
    • 48. 发明申请
    • Traffic analyzer and security methods
    • 流量分析仪和安全方法
    • US20070124244A1
    • 2007-05-31
    • US11288893
    • 2005-11-29
    • Von MockDavid Hayes
    • Von MockDavid Hayes
    • G06Q99/00
    • G08G1/207
    • A system (10) and a method (40) of initiating security measures based on mobile traffic patterns can include monitoring (42) identification information (such as Medium Access Control (MAC) Identification information) for a given network access point (11-18) for mobile wireless devices (23), determining (44) if a pattern of identification information registrations warrants initiation of security measures, and initiating (48) security measures if the pattern of identification information registrations justifies a heightened security level. The method can further determine if a fluctuation in the number of MAC Identifications corresponding to mobile devices within a given area during a predetermined time period matches a profile or pattern indicative of the heightened security level. The method can further maintain a historical database (24) of MAC Identification registrations for a given area during a predetermined time period corresponding to one or more network access points.
    • 基于移动业务模式发起安全措施的系统(10)和方法(40)可以包括监视(42)给定网络接入点(11-18)的识别信息(例如媒体接入控制(MAC)识别信息) ),确定(44)如果识别信息注册的模式需要启动安全措施,并且如果识别信息注册的模式证明提高的安全级别是合理的,则启动(48)安全措施。 该方法可以进一步确定在预定时间段期间对应于给定区域内的移动设备的MAC标识的数量的波动是否与指示提高的安全级别的简档或模式匹配。 该方法可以在对应于一个或多个网络接入点的预定时间段内进一步维护给定区域的MAC识别注册的历史数据库(24)。