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    • 1. 发明授权
    • Online frequency analysis for resource optimized systems
    • 资源优化系统的在线频率分析
    • US06374163B1
    • 2002-04-16
    • US09822954
    • 2001-03-30
    • Yongle LouFritz Paul-Emil DilgerJeffrey Thomas Musson
    • Yongle LouFritz Paul-Emil DilgerJeffrey Thomas Musson
    • G06F700
    • B60R16/0231
    • A method and system is provided for acquiring and analyzing vehicle motion signals to determine vehicle performance. The sampled vehicle motion signals are transferred from the time domain to the frequency domain using online frequency analysis. Once the frequency spectrum for the sampled vehicle motion data is obtained, the main frequencies and associated amplitudes are identified. Depending on the type of test conducted and the vehicle components to be analyzed, the natural frequencies of interest will be known and identified in the frequency spectrum. Online frequency analysis is used for analyzing the pre-defined frequencies in embedded systems with restricted computational resources and storage facilities. A weight filter matrix is used to calculate the frequency spectrum of interest in real time. The matrix is pre-calculated in accordance with a given sampling time, sampling rate, and selected frequencies.
    • 提供了一种用于获取和分析车辆运动信号以确定车辆性能的方法和系统。 采样车辆运动信号通过在线频率分析从时域传送到频域。 一旦获得了采样车辆运动数据的频谱,则识别主频率和相关幅度。 根据所进行的测试类型和要分析的车辆部件,感兴趣的固有频率将在频谱中被认识和识别。 在线频率分析用于分析具有受限计算资源和存储设施的嵌入式系统中的预定义频率。 使用权重滤波器矩阵实时计算感兴趣的频谱。 矩阵根据给定的采样时间,采样率和选定的频率进行预先计算。
    • 7. 发明授权
    • Navigation system vehicle location display
    • 导航系统车辆位置显示
    • US6049755A
    • 2000-04-11
    • US114670
    • 1998-07-13
    • Yongle LouJeffrey Alan MillingtonAnthony Albert Slominski
    • Yongle LouJeffrey Alan MillingtonAnthony Albert Slominski
    • G01C21/36G01C21/00G06G7/78G01S21/00
    • G01C21/3667G01C21/3632
    • The invention relates to a vehicle location display for a navigation system. The vehicle location display operates in either a graphical display mode or a textual display mode. In the graphical display mode the vehicle location display automatically scales the display to display the current location of the vehicle on the street currently being traveled, the previous cross street, the next cross street, and other vehicle information. When traveling on a freeway, the graphical display mode displays the current location of the vehicle on the freeway being traveled, the previous cross street and the next cross street. In the textual display mode the vehicle location display provides the current vehicle location by street or freeway name, city, county, state, latitude and longitude coordinates. In addition, the current compass heading, the previous cross street and the next cross street are provided. Icons displayed in the textual display mode enable a user to rapidly access emergency information and general information.
    • 本发明涉及导航系统的车辆位置显示。 车辆位置显示器以图形显示模式或文本显示模式操作。 在图形显示模式中,车辆位置显示自动地缩放显示器,以显示当前正在行驶的街道上的车辆的当前位置,先前的十字路口,下一个十字路口和其他车辆信息。 当在高速公路上行驶时,图形显示模式显示车辆正在行驶的高速公路上的当前位置,前一个十字路口和下一个十字路口。 在文本显示模式下,车辆位置显示通过街道或高速公路名称,城市,县,州,纬度和经度坐标提供当前车辆位置。 此外,还提供了目前的罗盘方向,前一条十字路口和下一条十字路口。 以文本显示模式显示的图标使用户能够快速访问紧急信息和一般信息。