BRIEF DESCRIPTION OF THE DRAWINGS
Further features and advantages of the present technology will become apparent from the following detailed description, taken in combination with the appended drawings, in which:
FIG. 1 is a block diagram schematically illustrating pertinent components of a wireless communications device and of a wireless communications network;
FIG. 2 is a more detailed block diagram of a wireless communications device;
FIG. 3A is a system diagram of network components which provide mapping functionality in the wireless communications devices of FIG. 1 and FIG. 2;
FIG. 3B illustrates a message exchange between a wireless communications device and a map server for downloading map content to the wireless communications device based on the system of FIG. 3A;
FIG. 3C is a diagram showing a preferred Maplet data structure;
FIG. 4 is a schematic depiction of a wireless network having an applications gateway for optimizing the downloading of map data from map servers to wireless communications devices;
FIG. 5 is a flowchart presenting steps of a method of displaying a map on a wireless device;
FIG. 6 is a screenshot of a map of North America without spherical correction;
FIG. 7 is a screenshot of the same map of North America after applying spherical correction;
FIG. 8 is a screenshot of a street map of downtown Ottawa, Canada (latitude 45° 19′ N) without spherical correction; and
FIG. 9 is a screenshot of the same street map of downtown Ottawa, Canada after applying spherical correction.
Patent Application
20070229545
