Map-based navigation system with overlays
First Claim
1. A navigation system comprising:
- 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; and
a 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.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
123 Citations
35 Claims
-
1. A navigation system comprising:
-
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; and
a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A navigation system comprising:
-
a processor;
a first computer-readable storage medium including bit-mapped map image data of at least one system of earth surface maps readable by the processor;
a user input device for providing user input to the processor; and
a display device connected to the processor for displaying images and information, the processor producing, from the bit-mapped map image data, and displaying on the display device, in response to any longitude and latitude supplied to the processor from the user input device, a bit-mapped map image essentially filling a display area of the display device and having no discontinuities except at the edges of the map system and centered at the supplied longitude and latitude, the processor further displaying in response to user inputs an overlay accurately overlaid on and scaled to the bit-mapped map image, the overlay selectably including weather information, wherein the bit-mapped map image data includes bit-mapped map image data of at least two systems of maps having mutually differing scales, the bit-mapped map image produced by the processor being formed from the bit-mapped map image data of a selectable one of the at least two systems of maps having mutually differing scales, the bit-mapped map image essentially filling the display device and having no discontinuities except at the edges of the map system and centered at the supplied longitude and latitude, the processor displaying in response to user input an overlay accurately overlaid on and scaled to the bit-mapped map image, the accurate overlay and scale being maintained regardless of which of the at least two systems of maps is selected. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A navigation system comprising:
-
a processor;
a computer-readable storage medium including bit-mapped map image data of at least one system of earth surface maps readable by the processor;
a user input device for providing a latitude and longitude to the processor;
a global positioning system receiver for providing global positioning data to the processor; and
a display device connected to the processor for displaying 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 latitude and longitude, the processor further displaying in response to user inputs an overlay accurately overlaid on and scaled to the bit-mapped map image, the overlay selectably including both information of a constantly varying nature and information of a relatively unvarying nature. - View Dependent Claims (32, 33, 34, 35)
-
Specification