Interleaving of data types in a geographic database and methods for application
First Claim
1. A method of forming a geographic database for use in a navigation system, wherein the geographic database includes a plurality of data records that represent geographic features in a geographic region, the method comprising the steps of:
- providing intermediate format files of different types, including at least an intermediate format file of a first type and an intermediate format file of a second type, wherein each of the intermediate format files is comprised of a plurality of data records that represent geographic features in the geographic region;
parcelizing at least the intermediate format file of the first type and the intermediate format file of the second type, wherein the parcelizing step forms a plurality of parcels of said intermediate format file of the first type and a plurality of parcels of said intermediate format file of said second type, wherein each parcel includes a plurality of data records of said respective type; and
interleaving the parcels of said first type and the parcels of said second type.
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Accused Products
Abstract
A geographic database for use with a navigation application program that provides navigation features to an end-user. The geographic database includes a plurality of data records of a first type and a plurality of data records of a second type. The plurality of records of the first type are organized into a plurality of parcels, each of which includes a plurality of data records of the first type and the plurality of records of the second type are organized into a plurality of parcels, each of which includes a plurality of data records of the second type. The parcels of data records of the first type are interleaved with the parcels of data records of the second type. This interleaving enables navigation functions that use these different types to access these different types more quickly and efficiently, thereby enhancing navigation system performance. Also disclosed is a method for forming a geographic database that includes a plurality of data records that represent geographic features and which can be used in a navigation system. The method includes the step of interleaving parcels containing pluralities of data records of a first type with parcels containing pluralities of data records of a second type.
92 Citations
24 Claims
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1. A method of forming a geographic database for use in a navigation system, wherein the geographic database includes a plurality of data records that represent geographic features in a geographic region, the method comprising the steps of:
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providing intermediate format files of different types, including at least an intermediate format file of a first type and an intermediate format file of a second type, wherein each of the intermediate format files is comprised of a plurality of data records that represent geographic features in the geographic region; parcelizing at least the intermediate format file of the first type and the intermediate format file of the second type, wherein the parcelizing step forms a plurality of parcels of said intermediate format file of the first type and a plurality of parcels of said intermediate format file of said second type, wherein each parcel includes a plurality of data records of said respective type; and interleaving the parcels of said first type and the parcels of said second type. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A geographic database for use in a navigation system, comprising:
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a plurality of data records of a first type; a plurality of data records of a second type; wherein the plurality of records of the first type are organized into a plurality of parcels, wherein each parcel includes a plurality of data records of said first type; wherein the plurality of records of the second type are organized into a plurality of parcels, wherein each parcel includes a plurality of data records of said second type; and wherein said parcels of data records of said first type are interleaved with said parcels of data records of said second type. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification