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    • 25. 发明授权
    • Antenna device
    • 天线设备
    • US6034641A
    • 2000-03-07
    • US931217
    • 1997-09-16
    • Hiroshi KudohJun Ashihara
    • Hiroshi KudohJun Ashihara
    • H01Q3/00G01S7/02G01S7/03G01S7/288G01S13/34G01S13/87G01S13/93H01Q1/24H01Q1/32H01Q3/24H01Q21/00H01Q21/06H01Q23/00H01Q25/00G01S7/28
    • G01S7/032G01S13/87H01Q1/247H01Q1/3233H01Q21/0025H01Q21/065H01Q25/008H01Q3/24H01Q3/245G01S13/343G01S13/931G01S2007/2883G01S2013/9375G01S2013/9378
    • An antenna device comprises an array antenna having a plurality of transmitting planar antenna elements and a plurality of receiving planar antenna elements, a transmission selecting circuit for selecting at least one of the transmitting planar antenna elements, a transmitting circuit for transmitting a signal to the selected at least one transmitting planar antenna element, a reception selecting circuit for selecting at least one of the receiving planar antenna elements, and a receiving circuit for receiving a signal from the selected at least one receiving antenna element. By selecting the planar antenna elements exclusively for transmission or reception, it becomes possible to radiate or absorb (receive) a main beam in or from a direction corresponding to the respective planar antenna element, thereby enabling more minute switching of the main beam directions and improving the directional resolution of the antenna device. Further, by providing the transmitting and receiving planar antenna elements separately, it becomes possible to prevent the deterioration of the reception sensitivity due to the leakage of part of a received signal into a transmission system of the antenna device. An antenna system employing the antenna device is also disclosed.
    • 天线装置包括具有多个发射平面天线元件和多个接收平面天线元件的阵列天线,用于选择发射平面天线元件中的至少一个的发射选择电路,用于将信号发送到所选择的发射电路 至少一个发射平面天线元件,用于选择接收平面天线元件中的至少一个的接收选择电路和用于从所选择的至少一个接收天线元件接收信号的接收电路。 通过选择专用于发送或接收的平面天线元件,可以在与相应的平面天线元件相对应的方向上或从相应的平面天线元件的方向上辐射或吸收(接收)主波束,从而能够实现主波束方向的更加微小的切换和改善 天线设备的方向分辨率。 此外,通过分开设置发送和接收平面天线元件,可以防止由于部分接收信号泄漏到天线装置的传输系统中的接收灵敏度的恶化。 还公开了一种采用天线装置的天线系统。
    • 26. 发明授权
    • Object recognition apparatus
    • 物体识别装置
    • US06518916B1
    • 2003-02-11
    • US09691073
    • 2000-10-19
    • Jun AshiharaTakashi SugawaraHiroshi Kudoh
    • Jun AshiharaTakashi SugawaraHiroshi Kudoh
    • G01S1393
    • G01S13/42G01S7/412G01S13/931G01S2013/9325G01S2013/9353
    • This invention relates to an object recognition apparatus. This apparatus comprises an antenna which emits transmission beams toward a plurality of directions; a receiving circuit which receives reflected signals of the transmission beams from predetermined directions; a distance and direction calculation circuit which calculates distance and direction to objects reflecting the transmission beams based on the transmission beams and the reflected signals; an object pattern storage unit which stores range direction patterns of reflected signals obtained in advance with respect to predetermined objects; an object recognition circuit which compares range direction patterns of the reflected signals received by the receiving circuit with respect to the predetermined directions, with the range direction patterns stored in the object pattern storage unit, and which recognize that a pair of reflected signals from two neighboring directions are signals reflected by the same object.
    • 本发明涉及一种物体识别装置。 该装置包括朝向多个方向发射透射束的天线; 接收电路,其从预定方向接收所述发射波束的反射信号; 距离和方向计算电路,其根据发射光束和反射信号计算反射发射光束的物体的距离和方向; 对象图案存储单元,其存储预先相对于预定对象获得的反射信号的范围方向图; 对象识别电路,其将由接收电路接收的反射信号相对于预定方向的范围方向图与存储在对象图案存储单元中的范围方向图案进行比较,并且识别出来自两个相邻的一对反射信号 方向是相同对象反映的信号。