Navigation device and method
First Claim
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1. A method of updating map data stored in one or more files on a navigation device or system, the method including the steps of:
- Establishing a wireless communication with a wireless access point WAP of a wide, local, or wireless local area network having internet connectivity,Obtaining an Internet Protocol IP address from the WAP to enable said device or system to become a node on said network and to download content from the Internet,Identifying a current version of said map data stored locally on said device or system,Querying a remote, internet-connected device to establish whether mal data is available therefrom and a version thereof,Comparing said version with that of said remote map data, andDownloading remote map data from said remote internet-connected device after determining that said current version of local map information is less recent than said remote map data version.
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Abstract
A method of updating map data stored in one or more files on a portable navigation device (PND) or navigation system is disclosed. The method includes the steps of establishing a wireless communication with a wireless access point WAP of a wide, local, or wireless local area network having internet connectivity, obtaining an Internet Protocol IP address from the WAP to enable the device or system to become a node on the network and to download content from the internet.
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Citations
14 Claims
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1. A method of updating map data stored in one or more files on a navigation device or system, the method including the steps of:
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Establishing a wireless communication with a wireless access point WAP of a wide, local, or wireless local area network having internet connectivity, Obtaining an Internet Protocol IP address from the WAP to enable said device or system to become a node on said network and to download content from the Internet, Identifying a current version of said map data stored locally on said device or system, Querying a remote, internet-connected device to establish whether mal data is available therefrom and a version thereof, Comparing said version with that of said remote map data, and Downloading remote map data from said remote internet-connected device after determining that said current version of local map information is less recent than said remote map data version. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. (canceled)
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13. (canceled)
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14. A navigation system including at least a processor, memory, a graphical display, and a GPS signal antenna, capable of receiving a plurality of GPS signals from a plurality of GPS satellites, said memory having stored therein one or more files in which map data is stored and which is displayed on the screen of the system as it performs a navigation function, said one or more files additionally having version information associated therewith, said navigation system further comprising:
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a second wireless signal transmission and reception means by virtue of which a communication with a proximate wireless access point WAP can be established using an internet protocol such that said system effectively becomes a node on an internet-connected network and is provided with an IP address, and a programming arranged such that once a wireless connection has been established, said programming is executed to cause said system to make a request of a remote node on said internet-connected network to determine version information of map data stored thereat or available there from, to compare remote map data version information with map data version information of locally stored map data, and to initiate subsequent download of one or more remote map data files, and installation thereof in said memory, in an event that said version information comparison indicates that one or more
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Specification