초록 ▼

A navigation system includes a processor and bit-mapped earth surface map image data in a first data storage device accessed by the processor/, the processor displaying an image essentially filling a display area of a display screen and centered on any latitude and longitude supplied to the processo

A navigation system includes a processor and bit-mapped earth surface map image data in a first data storage device accessed by the processor/, the processor displaying an image essentially filling a display area of a display screen and centered on any latitude and longitude supplied to the processor, the image having no discontinuities. The processor may receive latitude and longitude inputs from a user via a user input device, or from a global positioning system (GPS) receiver incorporated in the navigation system. The displayed map image may thus be centered at a desired longitude and latitude or at the longitude and latitude of the navigation system itself. The system may include a second data storage device for storing data from and providing data to the processor. Route information such as flight plan data may then be stored in the second data storage device. Information relating to the type of map system displayed and the scale at which it is displayed, to the currently displayed longitude and latitude, and other significant information is always displayed with the displayed map image. Other information is selectably displayed at a peripheral portion of the display area. Overlays may be selectably displayed over the bit-mapped map image display, with corresponding features appropriately aligned. Such overlays may include approach overlays instrument flight rules route charts, and current weather information.

대표청구항 ▼

[We claim:] [1.]a processor;a first computer storage medium for storing first data for access by the processor, the first data including standardized bit-mapped map image data of at least one map system of at least a portion of the surface of the earth;a user input device for providing a latitude an

[We claim:] [1.]a processor;a first computer storage medium for storing first data for access by the processor, the first data including standardized bit-mapped map image data of at least one map system of at least a portion of the surface of the earth;a user input device for providing a latitude and longitude to the processor;a global positioning system (GPS) receiver for providing global positioning system data to the processor; anda display screen having a display area for displaying map images and information,wherein the processor is programmed to operate in two modes selectable by a user, a GPS track mode in which a latitude and longitude are supplied to the processor by the GPS receiver and a view maps mode in which a latitude and longitude are supplied to the processor by the user directly through the user input device to permit a user to preview a proposed route, the processor responding to the selected mode and supplied latitude and longitude by displaying on the display area of the display screen a bit-mapped map image related to the supplied longitude and latitude, the bit-mapped map image essentially filling the display area of the display screen with no discontinuities in the image over the entire map system except at the edges at the map system, the processor updating the bit-mapped map image whenever a new longitude and latitude is supplied to the processor.