NAVIGATION APPARATUS AND MAP UPDATING SYSTEM THEREOF
PROBLEM TO BE SOLVED: To prevent map data from being updated illegally. SOLUTION: In the case of updating the map data of a hard disk unit 10, when an input unit 14 instructs forming/registering of an authentication code for authenticating the normal user of the updating map data; a controller 15 pe...
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| description | PROBLEM TO BE SOLVED: To prevent map data from being updated illegally. SOLUTION: In the case of updating the map data of a hard disk unit 10, when an input unit 14 instructs forming/registering of an authentication code for authenticating the normal user of the updating map data; a controller 15 performs the encryption transformation of time data detected by a GPS receiver 11 at that time point by first, second systems different from one another, forms a first authentication code, a second authentication code, registers the former with the hard disk unit 10, and announces the latter to a user. The user purchases a DVD-ROM 3 for updating the map in a dealer. The user acquires the first authentication code formed by the reconversion by a certificate authority from the second authentication code announced via the dealer. The DVD-ROM 3 for updating the map is set to a DVD driver 13. When the input unit 14 instructs the map updating and inputs the first authentication code, the controller 15 installs the map data from the DVD-ROM 3 to the hard disk unit 10 when the inputted first authentication code coincides with the first authentication code of the hard disk unit 10. COPYRIGHT: (C)2005,JPO&NCIPI |
| format | Patent |
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SOLUTION: In the case of updating the map data of a hard disk unit 10, when an input unit 14 instructs forming/registering of an authentication code for authenticating the normal user of the updating map data; a controller 15 performs the encryption transformation of time data detected by a GPS receiver 11 at that time point by first, second systems different from one another, forms a first authentication code, a second authentication code, registers the former with the hard disk unit 10, and announces the latter to a user. The user purchases a DVD-ROM 3 for updating the map in a dealer. The user acquires the first authentication code formed by the reconversion by a certificate authority from the second authentication code announced via the dealer. The DVD-ROM 3 for updating the map is set to a DVD driver 13. When the input unit 14 instructs the map updating and inputs the first authentication code, the controller 15 installs the map data from the DVD-ROM 3 to the hard disk unit 10 when the inputted first authentication code coincides with the first authentication code of the hard disk unit 10. 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When the input unit 14 instructs the map updating and inputs the first authentication code, the controller 15 installs the map data from the DVD-ROM 3 to the hard disk unit 10 when the inputted first authentication code coincides with the first authentication code of the hard disk unit 10. 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SOLUTION: In the case of updating the map data of a hard disk unit 10, when an input unit 14 instructs forming/registering of an authentication code for authenticating the normal user of the updating map data; a controller 15 performs the encryption transformation of time data detected by a GPS receiver 11 at that time point by first, second systems different from one another, forms a first authentication code, a second authentication code, registers the former with the hard disk unit 10, and announces the latter to a user. The user purchases a DVD-ROM 3 for updating the map in a dealer. The user acquires the first authentication code formed by the reconversion by a certificate authority from the second authentication code announced via the dealer. The DVD-ROM 3 for updating the map is set to a DVD driver 13. When the input unit 14 instructs the map updating and inputs the first authentication code, the controller 15 installs the map data from the DVD-ROM 3 to the hard disk unit 10 when the inputted first authentication code coincides with the first authentication code of the hard disk unit 10. COPYRIGHT: (C)2005,JPO&NCIPI</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GLOBES GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PLANETARIA SEALS SIGNALLING SURVEYING TESTING TRAFFIC CONTROL SYSTEMS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | NAVIGATION APPARATUS AND MAP UPDATING SYSTEM THEREOF |
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