利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

249 条记录 (耗时 0.013 秒)

    Video pulse normalizer
    31.
    发明授权
    Video pulse normalizer 失效
    视频脉冲正常化

    公开(公告)号：US3593168A

    公开(公告)日：1971-07-13

    申请号：US3593168D

    申请日：1966-08-31

    申请人： US NAVY

    发明人： ORTON CRILEY

    IPC分类号： G01S13/68 ,  H03G3/30 ,  H03K5/08

    CPC分类号： G01S13/68 ,  H03G3/3036

    摘要： A circuit for normalizing over a wide video input range, the first pulse of a chain of pulses whose relative amplitude ratios contain information. The video input pulses are applied to a resistance divider and the output is taken from a junction within the divider. The second, or lower resistor resistance value is changed in inverse ratio to the amplitude of the first video pulse so that the output amplitude of the first pulse remains constant.

    Visual identification of aircraft
    33.
    发明授权
    Visual identification of aircraft 失效
    视觉识别飞机

    公开(公告)号：US3300777A

    公开(公告)日：1967-01-24

    申请号：US40632764

    申请日：1964-10-26

    申请人： BRITISH AIRCRAFT CORP E NOMINE

    发明人： CLIFFORD TARR RICHARD JAMES

    IPC分类号： G01S7/06 ,  G01S13/68 ,  G01S13/86

    CPC分类号： G01S7/06 ,  G01S13/68 ,  G01S13/865 ,  G01S13/867

    摘要： 1,021,867. Television. ENGLISH ELECTRIC AVIATION Ltd. Oct. 28, 1964 [Oct. 28, 1963], No. 42504/63. Heading H4F. An aircraft having in its airframe a window 9 which is transparent to visible and infra-red radiation from an object to be identified, e.g. a foreign aircraft 3, has mounted within the airframe an angularly adjustable plane reflector 8 arranged to reflect radiation passing through the window, a radar or infra-red tracking equipment 4, 5 for following the course of the object to be identified, a servo-mechanism 6 controlled by the tracking equipment to drive the reflector 8 through an angle which is half the relative angular movement of the object so that the beam of radiant energy received from the object is reflected along a fixed path to a telescope objective 11, e.g. a parabolic mirror, from where it is reflected back through holes in the centre of the reflector 8 and servomechanism 6 and focused directly on to the photo-cathode of a vidicon camera 12. A receiver 14 may be connected by a closed circuit television link 13 to camera 12, the receiver having a manual control 15 for centralization, by way of further servo-commands, and magnification of the image. The dimensions of the object may be ascertained by comparison with a scale superimposed electroncally on the display, the overall magnification being known and the range of the object being available in the radar. In a further embodiment, Fig. 2, shown, a laser is used to illuminate the object, its narrow coherent light beam passing through a hole in mirror 11 and being reflected from plane mirror 8 on to the object.