NAVIGATION DEVICE DISPLAYING TRAFFIC INFORMATION
First Claim
Patent Images
1. A navigation device operable to display a route superimposed on a road map, together with one or more symbols each indicating a location for which audio or visual traffic information exists, each symbol being selectable to play back the audio or visual information.
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Abstract
A navigation device displays a route superimposed on a road map, together with one or more symbols each indicating a location for which audio or visual traffic information exists, each symbol being selectable to play back the audio or visual information. Visual traffic information can be from a fixed traffic camera; a driver can hence rapidly view a video feed or still image from a traffic camera to allow him to assess the traffic conditions.
100 Citations
60 Claims
- 1. A navigation device operable to display a route superimposed on a road map, together with one or more symbols each indicating a location for which audio or visual traffic information exists, each symbol being selectable to play back the audio or visual information.
- 48. A proxy server operable to supply audio or visual traffic information to a navigation device, the navigation device itself being operable to display a route superimposed on a road map together with one or more symbols each indicating a location for which audio or visual traffic information exists on the server, each symbol being selectable to play back the audio or visual information, the server adapting the audio or visual information for the specific playback requirements of the navigation device.
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60. A method of providing audio or visual traffic information to a navigation device, the navigation device being operable to display a route superimposed on a road map, together with one or more symbols each indicating a location for which audio or visual traffic information exists, each symbol being selectable to play back the audio or visual information,
the method comprising the steps of: -
(a) a proxy server obtaining or being provided with audio or visual traffic information from one or more sources of that information;
(b) the proxy server manipulating the information for reproduction on the device.
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Specification