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    • 2. 发明授权
    • Method of operation of a navigational calculator
    • 导航计算器的操作方法
    • US5313396A
    • 1994-05-17
    • US687040
    • 1991-04-16
    • James E. TerpstraDonald R. SellarsWilliam A. King, Jr.Karel R. Hajda
    • James E. TerpstraDonald R. SellarsWilliam A. King, Jr.Karel R. Hajda
    • B63B49/00G01C21/20G06F15/02
    • B63B49/00G01C21/20G06F15/025
    • The present invention provides a method of communicating information between a navigational computer and a user by the input and output devices associated with the navigational computer to determine a navigational parameter. The method includes the step of using the input device to select a navigational parameter whose value is to be determined by the navigational calculator. The preferred method includes the step of using the output device to display all of the variables required to calculate the selected navigational parameter. Also included in the method of the present invention is the step of using the input device to define the values associated with the variables necessary to calculate the selected navigational parameter in any order that is convenient to the user. Moreover, the user can change the value associated with a variable until the desired value is attained without having to redefine the values associated with other variables. The present invention also allows the user to change the value of a previously calculated parameter and then determines the effect of this change on the value of one of the variables used to initially calculate the navigational parameter.
    • 本发明提供了一种通过与导航计算机相关联的输入和输出设备在导航计算机和用户之间传送信息以确定导航参数的方法。 该方法包括使用输入装置来选择由导航计算器确定其值的导航参数的步骤。 优选的方法包括使用输出设备显示计算所选导航参数所需的所有变量的步骤。 本发明的方法还包括使用输入装置来定义与为使用者方便的任何顺序计算所选择的导航参数所必需的变量相关联的值。 此外,用户可以改变与变量相关联的值,直到获得期望的值,而不必重新定义与其他变量相关联的值。 本发明还允许用户改变先前计算的参数的值,然后确定该变化对用于最初计算导航参数的变量之一的值的影响。