Method and apparatus for use in navigational applications
First Claim
1. A computer-implemented method for incrementally updating a geographic database comprising optimal routing information for a first geographic region and an adjacent second geographic region so that an optimal route between the first and second geographic regions can be found after updating optimal routing data for only the first geographic region, the method comprising:
- updating optimal routing information associated with the first geographic region, said updated optimal routing information comprising at least new optimal routing information about one or more links in the first geographic region usable for optimally connecting to one or more links in the second geographic region and previous optimal routing information about one or more links in the first geographic region usable for optimally connecting to one or more links in the second geographic region,wherein updating includes;
computing a rank for one or more of the links of the first geographic region usable for connecting to one or more links of the second geographic region;
determining for each of the one of more links whether the computed rank has a lower importance than a previous computed rank for said link; and
if so, retaining the previous computed higher importance rank as the rank for said link.
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Abstract
A method comprising providing or receiving updated information, previous and said updated information associated with a geographic region, said previous information comprising information about one or more links usable for connecting to one or more links in a different geographic region, and said updated information comprising at least said previous information and new Information about one or more links for connecting to one or more links in said different geographic region.
26 Citations
20 Claims
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1. A computer-implemented method for incrementally updating a geographic database comprising optimal routing information for a first geographic region and an adjacent second geographic region so that an optimal route between the first and second geographic regions can be found after updating optimal routing data for only the first geographic region, the method comprising:
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updating optimal routing information associated with the first geographic region, said updated optimal routing information comprising at least new optimal routing information about one or more links in the first geographic region usable for optimally connecting to one or more links in the second geographic region and previous optimal routing information about one or more links in the first geographic region usable for optimally connecting to one or more links in the second geographic region, wherein updating includes; computing a rank for one or more of the links of the first geographic region usable for connecting to one or more links of the second geographic region; determining for each of the one of more links whether the computed rank has a lower importance than a previous computed rank for said link; and if so, retaining the previous computed higher importance rank as the rank for said link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus comprising at least one processor and at least one non-transitory memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
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for a geographic database comprising optimal routing information for a first geographic region and an adjacent second geographic region, update optimal routing information associated with the first geographic region so that an optimal route between the first and second geographic regions can be found after updating optimal routing data for only the first geographic region, said updated optimal routing information comprising at least new optimal routing information about one or more links in the first geographic region usable for optimally connecting to one or more links in the second geographic region and previous optimal routing information about one or more links in the first geographic region usable for optimally connecting to one or more links in the second geographic region; and determine a route between said first geographic region and said second region or between a first location in said first geographic region and a second location in said second region using said updated optimal routing information. - View Dependent Claims (14, 15, 16, 17)
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18. A computer program product comprising at least one non-transitory computer-readable storage medium having computer-executable program code portions stored therein, the computer-executable program code portions comprising program code instructions configured to:
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update optimal routing information associated with a first geographic region including new optimal routing information regarding one or more links in the first geographic region usable for optimally connecting to one or more links in a second geographic region, and previous optimal routing information about one or more links in the geographic region usable for optimally connecting to one or more links in the second geographic region; store said optimal routing information in a geographic database for the first geographic region and the second, adjacent geographic region; and determine a route between said first geographic region and said second region or between a first location in said first geographic region and a second location in said second region using said updated optimal routing information. - View Dependent Claims (19, 20)
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Specification