Method and device for map switching
First Claim
1. A method, comprising:
- retrieving, from a local memory of a navigation device, map information having a first level of detail based on a current position of the navigation device;
displaying, on a display of the navigation device, the retrieved map information including the current position of the navigation device;
repeatedly determining by a processor of the navigation device whether, for the current position of the navigation device, map information of a relatively higher level of detail than the first level of detail is stored in the local memory of the navigation device; and
automatically switching the displayed map information from the first level of detail to map information of the relatively higher level of detail upon determining that the map information of the relatively higher level of detail is stored in the local memory of the navigation device.
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Abstract
A method and navigation device are disclosed which allow for switching the display of map information, depending on the current position and the availability of relatively more detailed map information. In one embodiment, the method includes receiving information of a current position and displaying map information including the current position on a navigation device; determining relative map information coverage for the current position; and switching the displayed map information to display map information of relatively more detailed coverage of the current position, upon determining that map information of relatively more detailed coverage of the current position is displayable. The method may include determining a travel route based upon a travel destination input into a navigation device and determining whether or not, based upon the current position information, travel along the route enters a region wherein the relatively more detailed map information is displayable.
14 Citations
13 Claims
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1. A method, comprising:
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retrieving, from a local memory of a navigation device, map information having a first level of detail based on a current position of the navigation device; displaying, on a display of the navigation device, the retrieved map information including the current position of the navigation device; repeatedly determining by a processor of the navigation device whether, for the current position of the navigation device, map information of a relatively higher level of detail than the first level of detail is stored in the local memory of the navigation device; and automatically switching the displayed map information from the first level of detail to map information of the relatively higher level of detail upon determining that the map information of the relatively higher level of detail is stored in the local memory of the navigation device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A navigation device, comprising:
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a receiver to receive a current position of the navigation device; a local memory to store map information, the map information including the current position of the navigation device; an integrated input and display device to display stored map information of a first level of detail including the current position; and a processor to repeatedly determine, for the current position of the navigation device, if map information of a relatively higher level of detail than the map information of the first level of detail is stored in the local memory, and to automatically switch the displayed map information from the first level of detail to map information of the relatively higher level of detail upon the processor determining that the map information of the relatively higher level of detail is stored in the local memory. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification