초록 ▼

A navigation system is provided for offering navigational assistance to a mobile user. The navigation system receives GPS position information signals which are processed to determine current position latitude and longitude coordinates and direction of travel. A destination database includes a plura

A navigation system is provided for offering navigational assistance to a mobile user. The navigation system receives GPS position information signals which are processed to determine current position latitude and longitude coordinates and direction of travel. A destination database includes a plurality of categorized destinations and corresponding destination position coordinates pertaining to the destinations. The destination database is stored on an interfacable memory card and contains menu categories and subcategories for classifying the destinations and additional text information pertaining to the destinations. User selectable menu controls enable the user to sequence through the menu of categories and destinations and select a desired destination. This is easily accomplished by rotating a rotary pushbutton to view category and destination selections and depressing the rotary pushbutton to select the selection shown. A processor compares the current position coordinates with the position coordinates of the selected destination and determines a distance and a straight-line direction from the current position to the selected destination. A display displays the distance and a direction pointing indicator for showing the direction from the current position to the selected destination. In one embodiment, the navigation system is integrated with an audio entertainment system and shares a common display and housing.

대표청구항 ▼

[ What is claimed is:] [1.] A mapless navigation system with a user modifiable data base for adding data, including coordinate data, to previously stored data and for recalling the data, said mapless navigation system comprising:a position sensing receiver for receiving position information and dete

[ What is claimed is:] [1.] A mapless navigation system with a user modifiable data base for adding data, including coordinate data, to previously stored data and for recalling the data, said mapless navigation system comprising:a position sensing receiver for receiving position information and determining a current position thereof;a user modifiable destination data base internal to the navigation system with programmable memory for adding information to existing destinations to the data base and for adding coordinates of and other information regarding new destinations including said current position as a new destination to said data base;user interface means in said system for accessing the user modifiable data base, for adding said information to the user modifiable data base, and for recalling database information, including the added information on destinations;user selectable input means for selecting a desired destination from the user modifiable data base, including the destination added by a user of the data base;processor means for determining a distance and a direction from the determined current position to the selected desired destination; anda mapless display for displaying said distance from the current position to the selected desired destination, and a direction pointing indicator in said display for indicating said direction from the current position to the selected desired destination.