DOWNLOADING MAP DATA THROUGH A COMMUNICATION NETWORK
First Claim
Patent Images
1. A computer system comprising a processor and a computer-readable storage device storing a computer program, the computer system configured to perform operations comprising:
- storing geographical map data representative of at least one map image of a geographic area;
receiving a request for data pertaining to the geographic area; and
in response to the request, providing a subset of the geographical map data, wherein;
the subset of geographical map data is arranged into one or more minimal-sorted groups and comprises information for restoring said subset of geographical map data using the one or more minimal-sorted groups.
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Abstract
Various methods and systems are disclosed for downloading geographical map data representative of at least one map image of a geographic area. In response to a request for map data, a subset of geographical map data is provided. The subset of geographical map data may be arranged into one or more minimal-sorted groups. The minimal-sorted groups may be used to restore the map data represented by the subset.
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Citations
25 Claims
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1. A computer system comprising a processor and a computer-readable storage device storing a computer program, the computer system configured to perform operations comprising:
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storing geographical map data representative of at least one map image of a geographic area; receiving a request for data pertaining to the geographic area; and in response to the request, providing a subset of the geographical map data, wherein; the subset of geographical map data is arranged into one or more minimal-sorted groups and comprises information for restoring said subset of geographical map data using the one or more minimal-sorted groups. - View Dependent Claims (2, 3)
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4. In a system comprising a processor and memory, a computerized geographic-mapping method comprising:
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storing geographical map data representative of at least one map image of a geographic area; receiving, from a client computer, a request for data pertaining to the geographic area; and in response to the request, providing said client computer with a subset of the geographical map data, wherein; the subset of geographical map data is arranged into one or more minimal-sorted groups and comprises information for restoring said subset of geographical map data using the one or more minimal-sorted groups.
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5. A tangible computer readable medium having stored thereon computer executable instructions, the instructions comprising:
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instructions for storing geographical map data representative of at least one map image of a geographic area; instructions for receiving, from a client computer, a request for data pertaining to the geographic area; and instructions for providing said client computer with a subset of the geographical map data, wherein; the subset of geographical map data is arranged into one or more minimal-sorted groups and comprises information for restoring said subset of geographical map data using the one or more minimal-sorted groups.
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6. A system for providing information related to commercial enterprises, comprising:
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means for storing geographical map data representative of at least one map image of a geographic area; means for receiving, from a client computer, a request for data pertaining to the geographic area; and means for providing said client computer with a subset of the geographical map data, wherein the subset of geographical map data is arranged into one or more minimal-sorted groups and information for restoring said subset of geographical map data.
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7. A computer system comprising a processor and a computer-readable storage device storing a computer program, the computer system configured to perform operations comprising:
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maintaining a database of layers of geographical map data representative of at least one map image of a geographic area, each layer providing progressively more detail when displayed on a display device; receiving, from a client computer, a request for data pertaining to the geographic area; and in response to the request, providing a subset of said geographical map data, wherein; the subset of geographical map data is arranged into one or more minimal-sorted groups and sufficient to enable the client computer to render an image including one or more representations based on said subset and allow a user to navigate within said image without requiring new map data to be downloaded. - View Dependent Claims (8, 9, 10, 11, 12, 13, 15)
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16. A computer device comprising a processor and a computer-readable storage device storing a computer program, the computer device configured to perform operations comprising:
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sending to a map server a request for map data, said map data representative of at least one map image of a geographic area and comprising at least two layers, each layer providing progressively more detail to be displayed at the computer device; receiving a subset of said geographical map data, wherein the subset of geographical map data is arranged into one or more minimal-sorted groups and information for restoring said subset of geographical map data; and rendering an image representing the subset of geographical map data on a user interface of the computer device and allowing a user to navigate within said image without requiring new map data to be downloaded from the map server. - View Dependent Claims (17, 18, 19, 20)
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21. A method for downloading map data from a map server to a computer device, the method comprising:
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sending by the computer device to a map server a request for map data, said map data representative of at least one map image of a geographic area and comprising at least two layers, each layer providing progressively more detail to be displayed at the computer device; receiving at the computer device a subset of said map data, wherein the subset is arranged into one or more minimal-sorted groups; displaying at least part of an image including one or more representations based on said subset on a user interface of the computer device; and allowing a user to navigate within said at least part of the image without requiring new map data to be downloaded from the map server.
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22. A tangible computer readable medium having stored thereon computer executable instructions, the instructions comprising:
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instructions for sending by the computer device to a map server a request for map data, said map data representative of at least one map image of a geographic area and comprising at least two layers, each layer providing progressively more detail to be displayed at the computer device; instructions for receiving at the computer device a subset of said map data, wherein the subset is arranged into one or more minimal-sorted groups; instructions for rendering at least part of an image including one or more representations based on said subset on a user interface of the computer device; and instructions for allowing a user to navigate within said at least part of the image without requiring new map data to be downloaded from the map server.
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23. A system for providing information related to commercial enterprises, comprising:
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means for sending by the computer device to a map server a request for map data, said map data representative of at least one map image of a geographic area and comprising at least two layers, each layer providing progressively more detail to be displayed at the computer device; means for receiving at the computer device a subset of said map data, wherein the subset is arranged into one or more minimal-sorted groups; means for displaying at least part of an image including one or more representations based on said subset on a user interface of the computer device; and means for allowing a user to navigate within said at least part of the image without requiring new map data to be downloaded from the map server.
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24. A computer system comprising a processor and a computer-readable storage device storing a computer program, the computer system configured to perform operations comprising:
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storing geographical map data representative of at least one map image of a geographic area; receiving, from a client computer, a request for data pertaining to the geographic area; and in response to the request, providing said client computer with a subset of the geographical map data, wherein; the subset of the geographical map data is sufficient to enable said client computer to render a representation of the requested data pertaining to the geographic area and render navigable areas within said representation without requiring additional map data to be provided to the client computer. - View Dependent Claims (25)
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Specification