Route guidance method, navigation apparatus, portable terminal, and information server
First Claim
1. A route guidance method for providing route guidance from a current position to a destination by using a navigation apparatus including a display screen for display of a route from the current position to the destination and a portable terminal carried by a user, the method comprising:
- a step, performed by the navigation apparatus, for producing a code based on information associated with the destination and the current position en route to the destination and displaying the produced code on the display screen; and
a step, performed by the portable terminal, for acquiring code image information by capturing an image of the code displayed on the display screen and for providing route guidance along a route to the destination based on the image information.
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Accused Products
Abstract
A route guidance method provides route guidance from a current position to a destination by using a navigation apparatus capable of displaying a route from the current position to the destination in combination with a portable terminal carried by a user. The navigation apparatus produces a 2-dimensional code based on information associated with the destination and a location at which the user leaves his/her car en route to the destination and displays the thus produced code. The portable terminal acquires the information associated with the location at which the user leaves his/her car and the destination by reading the 2-dimensional code displayed by the navigation apparatus.
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Citations
12 Claims
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1. A route guidance method for providing route guidance from a current position to a destination by using a navigation apparatus including a display screen for display of a route from the current position to the destination and a portable terminal carried by a user, the method comprising:
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a step, performed by the navigation apparatus, for producing a code based on information associated with the destination and the current position en route to the destination and displaying the produced code on the display screen; and
a step, performed by the portable terminal, for acquiring code image information by capturing an image of the code displayed on the display screen and for providing route guidance along a route to the destination based on the image information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A navigation apparatus for displaying a route from a current position to a destination, comprising code generation means for generating a code which includes information associated with the current position and the destination and whose image can be captured by a portable terminal, and further comprising a display for displaying the generated code.
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11. A portable terminal for capturing, from a navigation apparatus, information associated with a route from current position to a destination and for displaying the route, comprising:
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an imaging unit for capturing, as code image information, an image of a code produced based on information associated with the current position and the destination and displayed on a display screen of the navigation apparatus; and
analysis means for extracting information associated with the current position and the destination by analyzing the code image information.
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12. An information server in two-way communication with a portable terminal carried by a user, comprising analysis means for receiving code image information for a code produced based on information associated with a current position and a destination and transmitted from the portable terminal, and for extracting information associated with the current position and the destination by analyzing the code image information.
Specification