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.
A method for testing utilizing a handheld computer having software which includes a launcher and a multiplicity of previous applications includes the steps exchanging the contents of the internal flash-ROM memory for the contents of an external memory module which contains a testing application and a verification application. The verification application ensures that after the exchange the contents of the flash-ROM memory contains only programs which have been authorized by the testing agency to be present when the test is taken, and that all communications and networking capability of the handheld computer are disabled during testing. At the conclusion of testing the handheld computer is returned to its original configuration by a second exchange between the flash-ROM memory and the external memory module.
A data editable statistic calculator having an input device, a memory, a statistic computing unit, and an output device. The input device includes a set of number entry keys for data entry, enabling inputted data to be stored in registers in the memory, so that the user can fetch a specific datum from the registers sequentially with a function key for further editing through the number entry keys. When entering EDIT mode under statistic mode, the user can clearly find out the desired data for editing, and then delete or edit the data. By means of this humanized design, the user can conveniently review the correctness of every inputted data.
A method of implementing an electronic calculator function in a portable terminal having a display comprises the steps of: setting an electronic calculator mode; displaying separately on the display: a first input window which receives and displays therein numeric information subject to arithmetic operation, a second input window which receives and displays therein operation/control commands, and an output window which displays therein an information input state and a result of the operation; displaying the numeric information in the output window when the corresponding information is inputted through the first input window; performing an operation on the numeric information displayed in the output window when the operation/control commands are inputted through the second input window; and displaying resultant numeric information, resulting from the operation, in the output window. The size of the output window may be increase as needed by reducing the sizes of the first and second input windows.
A system for graphically displaying on a cockpit display an indication of closure (i.e. a "closure indictor") with a selected target aircraft. In a preferred embodiment of the invention, the system only displays a closure indicator if: (1) the selected target aircraft is within a predetermined monitoring zone; and (2) the track of the selected target aircraft is within a pre-determined variation angle of the track of the Own Ship aircraft. If the rate of closure between the selected target aircraft and the Own Ship aircraft is within a predetermined range of values, the closure indicator includes a closing/receding indicia (such as an upwardly or downwardly directed arrow) that indicates whether the Own Ship aircraft is closing in on or receding from the selected target aircraft. The system preferably removes the closure indicator from display when the Own Ship aircraft or the selected target aircraft ceases to be airborne.
A system for graphically displaying on a cockpit display an indication of closure (i.e. a "closure indictor") with a selected target aircraft. In a preferred embodiment of the invention, the system only displays a closure indicator if: (1) the selected target aircraft is within a pre-determined monitoring zone; and (2) the track of the selected target aircraft is within a pre-determined variation angle of the track of the Own Ship aircraft. If the rate of closure between the selected target aircraft and the Own Ship aircraft is within a predetermined range of values, the closure indicator includes a closing/receding indicia (such as an upwardly or downwardly directed arrow) that indicates whether the Own Ship aircraft is closing in on or receding from the selected target aircraft. The system preferably removes the closure indicator from display when the Own Ship aircraft or the selected target aircraft ceases to be airborne.
