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Method and system for distribution of map content to mobile communication devices

A technology for communication equipment and content, applied in transmission systems, maps/plans/charts, educational tools, etc., can solve the problems of consuming wireless download bandwidth, inability to query, and affecting device cache data, etc.

Active Publication Date: 2008-02-20
RES IN MOTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It should also be noted that downloading of large amounts of map data according to conventional techniques requires considerable time to complete the download, consuming a large amount of over-the-air (OTA) bandwidth
Furthermore, storing large amounts of map data on the device affects the device's ability to cache data
[0006] In addition, DMGs typically cannot be combined with latitude / longitude coordinates for geocoding, thus limiting the ability to implement device features such as dynamically updating the current location when the device is in motion, or location resolution of any location annotation information on the device, such as personal points of interest Wait
In addition, you cannot query features that have not been marked on the DMG

Method used

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  • Method and system for distribution of map content to mobile communication devices
  • Method and system for distribution of map content to mobile communication devices
  • Method and system for distribution of map content to mobile communication devices

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Embodiment Construction

[0024] According to one aspect of the present description, a Maplet data structure is preferably provided that contains all graphical and annotated content related to geographic regions (e.g. map features such as restaurants (point features), streets (line features) or lakes (polygon features) feature)). Maplet is structured with "DEntries" (Data Entries) layers identified by "Layer ID" so that data from different sources can be configured to devices and displayed as meshes appropriately. Each DEntry represents one or more objects or annotations (or a combination of both), and includes coordinate information (also known as a "bounding box" or "bounding area") for identifying multiple objects or annotations that are collectively represented. The area covered by the data points and DEntry. For example, a DEntry can be used to represent a street (or streets) on a city map, where each point in the DEntry is divided into different parts to represent different parts of the object (...

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Abstract

A system and method are set forth for distributing map content from a server to a communication device by transmitting a request from the communication device to the map server for a maplet index of map data covering a specified area and identified by coordinates for defining the map data, receiving the request at the map server and in response transmitting the maplet index to the communication device, wherein the mapiet index defines content available the maplet without including all of the data points therein.

Description

technical field [0001] The present invention relates to mobile communication devices, and more particularly to a method for sending map content to a mobile device. Background technique [0002] Due to the increasing number of services and features supported by the devices and mobile appliances, mobile communication devices have become popular for business and personal use. Handheld mobile communication devices, sometimes called mobile stations, are basically portable computers with wireless capabilities and come in many forms. It includes personal digital assistants (PDAs), cellular phones and smart phones. [0003] More recently, Global Positioning System (GPS) receivers have been integrated in some of the aforementioned mobile communication devices to provide enhanced Location Based Services (LBS). In operation, a map application in a mobile communication device sends a request for information about cities, restaurants, street addresses, routes, etc. to a map server. If...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/22H04Q7/38
CPCH04L29/08657H04L67/18H04L67/306G01C21/32G09B29/00H04L29/08936G01C21/005G06F17/30241G06F16/29H04L67/52G01C21/3878G01C21/3867
Inventor 埃里克·约翰逊杰西·克雷桑罗纳德·安东尼·迪克
Owner RES IN MOTION LTD