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147 条记录 (耗时 0.013 秒)

    Selectable range ring for an ADS-B CDTI cockpit display
    41.
    发明授权
    Selectable range ring for an ADS-B CDTI cockpit display 有权

    公开(公告)号：US06473003B2

    公开(公告)日：2002-10-29

    申请号：US09798615

    申请日：2001-03-02

    申请人： Steve Horvath ,  Robert Grove

    发明人： Steve Horvath ,  Robert Grove

    IPC分类号： G08B2100

    CPC分类号： G08G5/0021 ,  G01S1/047 ,  G01S7/10 ,  G08G5/0078

    摘要： An electronic cockpit display of traffic information in a pilot's own aircraft, comprising: a traffic display out to a distance from the own aircraft at a periphery of the display set by an adjustable scale; and a range indicator display representing a selected physical distance from the own aircraft, the range indicator moving in a selectable range ring mode to maintain the selected distance from the own aircraft represented by the indicator as the adjustable scale changes. The range indicator display optionally may be selectively operable in an alternative half-scale range ring mode, in which the range indicator remains at the halfway position on the display as the adjustable scale changes, and in which the physical distance from the own aircraft represented by the indicator varies with the scale adjustment. Range monitoring may be provided using a range ring as the range indicator.

    Frequency diversity for image enhancement
    42.
    再颁专利
    Frequency diversity for image enhancement 失效

    公开(公告)号：USRE35148E

    公开(公告)日：1996-01-23

    申请号：US375798

    申请日：1995-01-20

    申请人： Frederic L. Lizzi ,  Marek Elbaum ,  Ernest J. Feleppa

    发明人： Frederic L. Lizzi ,  Marek Elbaum ,  Ernest J. Feleppa

    IPC分类号： G01S7/10 ,  G01S7/52 ,  G01S13/89 ,  G02B27/48 ,  H04N7/18

    CPC分类号： G01S7/52046 ,  G01S13/89 ,  G01S7/10 ,  G01S7/5206 ,  G02B27/48 ,  G01S15/8954 ,  G01S7/52077

    摘要： Methods for improving the availability of information derived from signals received from an object irradiated with coherent pulses of any form of radiation that exhibits a wave nature are disclosed. A method for reducing speckle derives separate component noncoherent signals from the received signals, and combines these separate noncoherent signals to form improved composite noncoherent signals. Weighting and processing of component signals can be applied as a function of time, frequency, and signal amplitude to optimize speckle reduction in all or a critical part of the signal by compensating for the range and frequency dependence of attenuation and the frequency dependence of scattering phenomena. In a method for enhancing resolution, separate component coherent signals are derived from the received signals, weighted and processed, and combined to form improved composite coherent signals; then noncoherent signals are derived from the improved composite coherent signals. In both methods, signals can be processed either in the analog or digital domains or in hybrid analog/digital domains. The apparatus for performing each method also is disclosed.

    Control unit for the brightness of video signals on a raster scan display
    43.
    发明授权
    Control unit for the brightness of video signals on a raster scan display 失效
    光栅扫描显示屏上视频信号亮度的控制单元

    公开(公告)号：US4165506A

    公开(公告)日：1979-08-21

    申请号：US804720

    申请日：1977-06-08

    申请人： Antoon H. Brands ,  Jouke Gietema

    发明人： Antoon H. Brands ,  Jouke Gietema

    IPC分类号： G01S7/06 ,  G01S7/10 ,  G01S7/298 ,  G09G5/00 ,  G06K15/20

    CPC分类号： G01S7/10 ,  G01S7/066

    摘要： A control unit for the brightness of video signals on a raster scan display is provided with a random-access memory. The data stored in each element of this memory determines the brightness of the video signals on the raster scan display at a position corresponding with this element. In response to the video data supplied to the control unit and the brightness data in the random-access memory a logical unit provides new brightness data which overwrites the brightness data in the memory.

    摘要翻译： 用于在光栅扫描显示器上的视频信号的亮度的控制单元设置有随机存取存储器。 存储在该存储器的每个元件中的数据在与该元件相对应的位置处确定光栅扫描显示器上的视频信号的亮度。 响应于提供给控制单元的视频数据和随机存取存储器中的亮度数据，逻辑单元提供覆盖存储器中亮度数据的新亮度数据。

    Ppi display system with deflection modulation to reduce spoking
    44.
    发明授权
    Ppi display system with deflection modulation to reduce spoking 失效
    PPI显示系统具有减少调谐的偏差调制

    公开(公告)号：US3810173A

    公开(公告)日：1974-05-07

    申请号：US31068272

    申请日：1972-11-30

    申请人： UNIV SYRACUSE RES CORP

    发明人： KIRKPATRICK G

    IPC分类号： G01S7/10 ,  G01S7/12

    CPC分类号： G01S7/12 ,  G01S7/10

    摘要： A PPI display system representing slant range and azimuth angle corresponding to a given number of beam positions, having a noise source modulation circuit for modulating the scanning signal to cause random lateral deflection, and a long persistence display tube for providing video integration of such random deflections to reduce display spoking and provide a uniform PPI appearance.

    摘要翻译： PPI显示系统，其表示对应于给定数量的光束位置的倾斜范围和方位角，具有用于调制扫描信号以产生随机横向偏转的噪声源调制电路，以及用于提供这种随机偏转的视频整合的长持续显示管 以减少显示抖动并提供统一的PPI外观。

    Vertical obstacle profiling sonar
    45.
    发明授权
    Vertical obstacle profiling sonar 失效
    垂直OBSTACLE分析声音

    公开(公告)号：US3618007A

    公开(公告)日：1971-11-02

    申请号：US3618007D

    申请日：1969-11-18

    申请人： US NAVY

    发明人： ANDERSON VICTOR C

    IPC分类号： G01S7/10 ,  G01S7/529 ,  G01S7/62 ,  G01S15/42 ,  G01S15/89 ,  G01S9/68

    CPC分类号： G01S15/89 ,  G01S7/10 ,  G01S7/529 ,  G01S7/6218 ,  G01S15/42 ,  Y10S367/90

    摘要： The sonar functions in a pulsed active-mode utilizing a projector to insonify a fan-shaped region of an ocean floor area in front of the submersible. Backscattered signal returns are received by two hydrophones having acoustic centers located in close proximity (about 0.35 inch) one to the other. Range is determined by elapsed time between transmission and reception. Direction in a vertical plane relative to the axis of the submersible is determined by the relative phase between the signal outputs of the vertically spaced hydrophones. The outputs are coupled to a signal processor employing a time-varying gain to compensate for beam-spreading losses and then to separate clipper amplifiers. The positive transition of one clipper output is used to reset a sawtoothed generator and the negative transition of the other clipper triggers a pulse generator. Combining the outputs of the sawtooth and pulse generators provides phase information proportional to the arrival angle of the return signal. When combined with range, the results can be displayed to provide a vertical and horizontal coordinate display for navigation purposes. An envelope detector is connected to one of the signal processor channels to intensity modulate the display for highlighting stronger returns.