Navigation apparatus
First Claim
1. A navigation apparatus comprising:
- a map information storage unit that stores map information;
a storage medium driving unit in which a storage medium for storing map update information used for updating said map information is mounted;
a map information updating unit that updates the map information stored in said map information storage unit on a basis of the map update information read from the storage medium mounted to said storage medium driving unit;
a mounting detecting unit that detects whether or not the storage medium is mounted to said storage medium driving unit;
a map information ID comparison unit that compares a map information ID attached to the map information stored in said map information storage unit with a map information ID attached to the map update information stored in the storage medium mounted to said storage medium driving unit, and judging whether said compared map information IDs match each other;
a map information selection control unit that selects a part of the map information stored in said map information storage unit under conditions where the mounting detecting unit detects the storage medium being mounted to the mounting detecting unit and the map information ID comparison unit judges that said compared map information IDs do not match each other;
a navigation information calculating unit that creates navigation information by carrying out an predetermined operation on a basis of the map information selected by said map information selection control unit; and
a navigation information output unit that outputs the navigation information created by said navigation information calculating unit.
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Accused Products
Abstract
A navigation apparatus includes a map information updating means (13) for updating map information on a basis of map update information, a mounting detecting means (14) for detecting whether a storage medium is mounted to a storage medium driving means, a map information ID comparison means (15) for comparing a map information ID attached to the map information with a map information ID attached to the map update information to judge whether they match each other, a map information selection control means (16) for, when the storage medium is mounted to the storage medium driving means and the map information IDs match each other, selecting all of the map information, and selecting a part of the map information otherwise, a navigation information calculating means (17) for creating navigation information on the basis of the selected map information, and a navigation information output means (18) for outputting the created navigation information.
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Citations
11 Claims
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1. A navigation apparatus comprising:
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a map information storage unit that stores map information; a storage medium driving unit in which a storage medium for storing map update information used for updating said map information is mounted; a map information updating unit that updates the map information stored in said map information storage unit on a basis of the map update information read from the storage medium mounted to said storage medium driving unit; a mounting detecting unit that detects whether or not the storage medium is mounted to said storage medium driving unit; a map information ID comparison unit that compares a map information ID attached to the map information stored in said map information storage unit with a map information ID attached to the map update information stored in the storage medium mounted to said storage medium driving unit, and judging whether said compared map information IDs match each other; a map information selection control unit that selects a part of the map information stored in said map information storage unit under conditions where the mounting detecting unit detects the storage medium being mounted to the mounting detecting unit and the map information ID comparison unit judges that said compared map information IDs do not match each other; a navigation information calculating unit that creates navigation information by carrying out an predetermined operation on a basis of the map information selected by said map information selection control unit; and a navigation information output unit that outputs the navigation information created by said navigation information calculating unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A navigation apparatus comprising:
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a map information storage unit that stores map information; a storage medium driving unit in which a storage medium that stores map update information used that updates said map information is mounted; a map information updating unit that updates the map information stored in said map information storage unit on a basis of the map update information read from the storage medium mounted to said storage medium driving unit; a mounting detecting unit that detects whether the storage medium is mounted to said storage medium driving unit; a map information ID comparison unit that compares a map information ID attached to the map information stored in said map information storage unit with a map information ID attached to the map update information stored in the storage medium mounted to said storage medium driving unit, and judging whether said compared map information IDs match each other; an operation item selection control unit that selects a part of all operations items for implementing a part of all functions provided in the navigation apparatus under conditions where the mounting detecting unit detects the storage medium being mounted to the storage medium driving unit and the map information ID comparison unit judges that said compared map information IDs do not match each other; a navigation information calculating unit that creates navigation information by carrying out operation items selected by said operation item selection control unit; and a navigation information output unit for outputting the navigation information created by said navigation information calculating unit. - View Dependent Claims (8, 9, 10, 11)
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Specification