Natural navigational guidance
First Claim
1. A method of providing audible natural navigational guidance output from a wireless device, comprising:
- determining a current location of said wireless device based on measurement data provided by a navigation application program;
measuring the current location and direction of travel of a wireless device with respect to an upcoming maneuver point along a navigated route based on map data characterizing a geographic area;
determining a natural guidance point selection area relating to said upcoming maneuver point based on said map data;
determining available geographic features from a plurality of geographic features within said natural guidance point selection area based on said map data, wherein each geographic feature includes a plurality of visual characteristics identified in said map data;
comparing each geographic feature against each other geographic feature based on said respective plurality of visual characteristics to identify at least one locally unique geographic feature from said available geographic features within said determined natural guidance point selection area;
varying a priority of each of said at least one locally unique geographic feature within said determined natural guidance point selection area based on a proximity to said upcoming maneuver point; and
outputting audio from said wireless device, said audio relating to one of said at least one locally unique geographic feature having a highest varied priority.
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Accused Products
Abstract
Natural navigational guidance provides enhanced guidance instructions that take advantage of unique geographic features along a navigated route to specify maneuver points. Guidance points are clearly visible, unambiguous, and locally unique features in the geography of the maneuver area that can be used to aid the user in discovering the place where the maneuver point is. Within a guidance point selection area, a specific guidance point type has a more strict area within which it can be used. A natural guidance point selection area for an upcoming maneuver to be navigated is determined, and a unique geographic feature within the determined natural guidance point selection area is selected as a natural guidance point for navigation of the upcoming maneuver. A turn-type natural guidance point for an upcoming maneuver to be navigated is generated when the user device is within the natural guidance point selection area.
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Citations
20 Claims
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1. A method of providing audible natural navigational guidance output from a wireless device, comprising:
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determining a current location of said wireless device based on measurement data provided by a navigation application program; measuring the current location and direction of travel of a wireless device with respect to an upcoming maneuver point along a navigated route based on map data characterizing a geographic area; determining a natural guidance point selection area relating to said upcoming maneuver point based on said map data; determining available geographic features from a plurality of geographic features within said natural guidance point selection area based on said map data, wherein each geographic feature includes a plurality of visual characteristics identified in said map data; comparing each geographic feature against each other geographic feature based on said respective plurality of visual characteristics to identify at least one locally unique geographic feature from said available geographic features within said determined natural guidance point selection area; varying a priority of each of said at least one locally unique geographic feature within said determined natural guidance point selection area based on a proximity to said upcoming maneuver point; and outputting audio from said wireless device, said audio relating to one of said at least one locally unique geographic feature having a highest varied priority. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of providing audible natural navigational guidance output from a wireless device, comprising:
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determining a current location of said wireless device based on measurement data provided by a navigation application program; measuring [the current location and direction of travel of a wireless device with respect to an upcoming maneuver point along a navigated route based on map data characterizing a geographic area; determining a natural guidance point selection area relating to said upcoming maneuver point based on said map data; determining available geographic features from a plurality of geographic features within said natural guidance point selection area based on said map data, wherein each geographic feature includes a plurality of visual characteristics identified in said map data; comparing each geographic feature against each other geographic feature based on said respective plurality of visual characteristics to identify at least one locally unique geographic feature within said determined natural guidance point selection area, each of said at least one locally unique geographic features having a first priority based on a type of geographic feature; varying said priority of each of said at least one locally unique geographic feature based on a proximity to said upcoming maneuver point; and outputting audio from said wireless device, said audio relating to one of said at least one locally unique geographic feature having a highest varied priority. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification