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    • 5. 发明申请
    • Cavity embedded antenna
    • 腔嵌入天线
    • US20060181474A1
    • 2006-08-17
    • US10550367
    • 2004-04-02
    • John ApostolosRichard BallStephen Hedges
    • John ApostolosRichard BallStephen Hedges
    • H01Q1/42
    • H01Q21/30H01Q5/357H01Q7/00
    • A nested cavity embedded loop mode antenna is provided with an ultra wide band response by nesting individual embedded cavity meander line loaded antenna modules, with the meander lines coupled to a ground plane plate either capacitively or directly so as to provide as much as a 27:1 ratio of high frequency to low frequency cutoff. The nested meander line structure is exceptionally compact and eliminates the problem of a null in the antenna radiation pattern perpendicular to the face of the antenna, thus to provide a loop type antenna pattern at all frequencies across which the antenna is to be operated. The use of the nested meander line configuration provides a flush mount for the antenna having a footprint associated with the larger of the meander line cavities and thus the lowest frequency of operation, the nesting precluding the necessity of providing separate side-by-side meander line loaded antennas which would increase the real estate required. Additionally, a shunted slotline embodiment of the cavity-embedded antenna substitutes shunted slots for meander lines to provide for a low-cost wide bandwidth cavity-embedded antenna.
    • 嵌套腔嵌入式环路天线通过嵌套单个嵌入式腔曲折线加载天线模块而提供超宽带响应,曲折线可以电容或直接耦合到接地平面板,以提供高达27: 1比例的高频到低频截止。 嵌套曲折线结构非常紧凑,消除了垂直于天线的天线的天线辐射图中的零点的问题,从而在天线要被操作的所有频率处提供环形天线方向图。 使用嵌套曲折线配置为天线提供了具有与更大的曲折线腔相关联的覆盖区并因此是最低频率的操作的嵌入式安装,嵌套排除了提供分开的并排弯曲线的必要性 加载天线将增加所需的房地产。 此外,空腔嵌入式天线的分流槽槽实施例将用于曲折线的分流槽替代为低成本宽带宽空腔嵌入式天线。
    • 7. 发明授权
    • Apparatus and method for allowing user to track path of travel over extended period of time
    • 用于允许用户在延长的时间段内跟踪行进路径的装置和方法
    • US07123189B2
    • 2006-10-17
    • US10881459
    • 2004-06-30
    • Christopher LalikBill CrossRichard Ball
    • Christopher LalikBill CrossRichard Ball
    • G01S5/14
    • G01C21/20G01S19/34G01S19/51G06F17/30241Y02D10/45
    • An apparatus (10) and method for allowing a moving user to automatically determine and store locations (11) over an extended period of time, to display the series of such locations (11), and to actively assist in returning to an earlier location. The apparatus (10) includes an antenna (16) for facilitating satellite lock, a fastening mechanism (18) for positioning the antenna (10) for best reception, and a satellite lock indicator (20) for communicating loss of satellite lock. The apparatus (10) also includes a timer (26) for measuring an interval during which the apparatus (10) is in a power-conserving sleep mode, and after which the user's current location is automatically determined. Active assistance in returning to an earlier location, either by traveling back along the path earlier traveled or by traveling along a more direct route, is accomplished by warning the user whenever the user's course deviates from the path or route.
    • 一种用于允许移动用户在延长的时间段内自动确定和存储位置(11)的装置(10)和方法,以显示一系列这样的位置(11),并且主动地帮助返回到较早的位置。 装置(10)包括用于便于卫星锁定的天线(16),用于定位用于最佳接收的天线(10)的紧固机构(18)和用于传送卫星锁定损失的卫星锁定指示器(20)。 装置(10)还包括用于测量装置(10)处于节电睡眠模式的间隔的定时器(26),之后自动确定用户的当前位置。 通过沿着较早行驶的路径行驶或通过沿着更直接的路线行驶而返回到较早位置的主动帮助是通过在用户的路线偏离路径或路线时警告用户来实现的。