Upgrade method for navigation data and apparatus for saving user data
First Claim
1. A upgrade method for navigation data that writes over and upgrades navigation data in a memory device, which is installed in a navigation apparatus such that it can be freely installed and removed and which stores rewritable navigation data and user data, the method comprising:
- a checking process of checking the memory status of the memory device that is removed from the navigation apparatus and determining whether there are the navigation data to be upgraded and the user data to be saved;
a user data saving process that depending on the results of the checking process saves the user data, which are stored in the memory device, in a backup memory device such that they can be identified as saved data;
a navigation data writing process that depending on the results of the checking process writes over the navigation data, which are stored in the memory device, with upgraded navigation data; and
a user data rewriting process of reading the saved data, which correspond to the memory device, from the backup memory device and rewriting the saved data in the memory device as the user data.
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Abstract
An upgrade method for navigation data is provided with: a memory status of a memory device that is removed from a navigation apparatus is checked and it is determined whether there are the navigation data to be upgraded and the user data to be saved. The user data is saved in a backup memory device. The navigation data is written over with upgraded navigation data. Then, the saved data is read from the backup memory device and rewritten in the memory device as the user data.
20 Citations
15 Claims
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1. A upgrade method for navigation data that writes over and upgrades navigation data in a memory device, which is installed in a navigation apparatus such that it can be freely installed and removed and which stores rewritable navigation data and user data, the method comprising:
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a checking process of checking the memory status of the memory device that is removed from the navigation apparatus and determining whether there are the navigation data to be upgraded and the user data to be saved;
a user data saving process that depending on the results of the checking process saves the user data, which are stored in the memory device, in a backup memory device such that they can be identified as saved data;
a navigation data writing process that depending on the results of the checking process writes over the navigation data, which are stored in the memory device, with upgraded navigation data; and
a user data rewriting process of reading the saved data, which correspond to the memory device, from the backup memory device and rewriting the saved data in the memory device as the user data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A upgrade method for navigation data that writes over and upgrades navigation data in a memory device, which is installed in a navigation apparatus such that it can be freely installed and removed and which stores rewritable navigation data and user data, comprising
a writing over process for writing over the navigation data in the memory device, which has been removed from the navigation apparatus; -
a saving process for temporarily saving the user data when writing over the navigation data; and
a rewriting process for rewriting saved user data in the memory device after the navigation data have been written over. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An apparatus for saving user data that temporarily saves user data when writing over and upgrading navigation data in a memory device, which is installed in a navigation apparatus such that it can be freely installed and removed and which stores rewritable navigation data and user data, the apparatus comprising:
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a backup memory device for temporarily saving the user data that are stored in the memory device;
a user data save control device for checking the memory status of the memory device that was removed from the navigation apparatus to determine whether there are the navigation data to be upgraded and the user data to be saved, and for saving the user data that are stored in the memory device in the backup memory device as saved data, depending on the result of the determination; and
a user data rewrite control device for reading the saved data, which correspond to the memory device in which the navigation data have been written over, from the backup memory device and for rewriting the saved data in the memory device as the user data. - View Dependent Claims (14, 15)
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Specification