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| Number | Title | Issue Date |
| 8026835 | Data mining in a digital map database to identify traffic signals, stop signs and yield signs at bottoms of hills and enabling precautionary actions in a vehicle Disclosed is a feature for a vehicle that enables taking precautionary actions in response to conditions on the road network around or ahead of the vehicle, in particular, a traffic light, stop sign or yield sign located at the bottom of a hill. A database that repr... | 09/27/2011 |
| 8014937 | Method of creating a virtual traffic network A computer-implemented method of creating a virtual traffic network includes inputting map data representing a road system, inputting flow data related to traffic flow on the road system and integrating the map data and the flow data to produce a virtual traffic net... | 09/06/2011 |
| 8010284 | Geographic database including data indicating wireless coverage and method and system for use thereof Wireless coverage data are associated with a geographic database that contains data that represent a road network in a geographic region. The wireless coverage data indicate areas within the geographic region in which navigation-related services or data from a navig... | 08/30/2011 |
| 8009061 | Data mining for traffic signals or signs along road curves and enabling precautionary actions in a vehicle Disclosed is a feature for a vehicle that enables taking precautionary actions in response to conditions on the road network around or ahead of the vehicle, in particular, a traffic light or stop sign located along a curved section of road. A database that represent... | 08/30/2011 |
| 7990284 | Providing sponsorship information alongside traffic messages A method and system for providing sponsorship information to a user of a traffic message receiver is disclosed. Sponsorship messages are sent to the traffic message receiver and include data to be stored in the memory of the receiver. The transmission of the sponsor... | 08/02/2011 |
| 7987186 | Method and system for wavelet-based representation and use of cartographic data Cartographic data is represented using wavelet coefficients. Specifically, a cartographic shape point database consisting of shape points and nodes stored on a per geographic feature basis is converted to a cartographic wavelet database consisting of wavelet and sca... | 07/26/2011 |
| 7924173 | Electronic navigation system and method The invention provides a system for providing geographic information. The system includes a mobile unit having a first geographic database and a base unit having a second geographic database that is more up-to-date than the first geographic database. The base unit r... | 04/12/2011 |
| 7912638 | Method of collecting information for a geographic database for use with a navigation system A method for operating a navigation system computes a pedestrian route for travel by a pedestrian. A request to calculate the pedestrian route from an origin to a destination and a walking preference for the pedestrian route identifying a feature of the pedestrian r... | 03/22/2011 |
| 7904598 | Remote radio spectrum information acquisition A scanner system provides real-time remote acquisition of a scanner's audio signals and visual display, and real-time remote control of scanner operations, including settings and functions. The scanner system may be used to gather information in a regional market by... | 03/08/2011 |
| 7894986 | Method and system for forming a keyword database for referencing physical locations An improved method and system for specifying physical locations when using applications run on navigation systems or other computer platforms that provide navigation- or map-related functions. When requesting a navigation- or map-related function from such an applic... | 02/22/2011 |
| 7859535 | Displaying traffic flow data representing traffic conditions An article of manufacture for displaying traffic flow data representing traffic conditions on a road system includes creating a graphical map of the road system which includes one or more segments. The status of each segment on the graphical map is determined such t... | 12/28/2010 |
| 7856310 | Method of developing traffic messages A method is disclosed for developing traffic messages. The method obtains traffic data indicating collected traffic speeds at various locations on a road network. Traffic messages are developed from the traffic data. The method obtains ground truth data indicating g... | 12/21/2010 |
| 7855659 | Providing sponsorship information alongside traffic messages A method and system for providing sponsorship information to a user of a traffic message receiver is disclosed. Sponsorship messages are sent to the traffic message receiver and include data to be stored in the memory of the receiver. The transmission of the sponsor... | 12/21/2010 |
| 7835858 | Method of creating a virtual traffic network A computer-implemented method of creating a virtual traffic network includes inputting map data representing a road system, inputting flow data related to traffic flow on the road system and integrating the map data and the flow data to produce a virtual traffic net... | 11/16/2010 |
| 7818124 | Method of operating a navigation system using images A method of operating a navigation system determines a route between an origin and a destination and provides a photographic image showing a geographic area through which the route passes. The photographic image is obtained from a geographic database, and the photog... | 10/19/2010 |
| 7814106 | Geographic database organization that facilitates location-based advertising A method of facilitating delivery of advertising to users of mobile computing platforms is disclosed. A geographic database contains data entities that represent geographic features, such as roads, located in a geographic region. Advertising zones are defined within... | 10/12/2010 |
| 7805442 | Method and system for representation of geographical features in a computer-based system Cartographic data is represented using polynomial splines. To improve representation accuracy and reduce storage requirements, a database storing data points (shape points and nodes) is converted into a database of spline control points. The spline control points ar... | 09/28/2010 |
| 7801904 | Navigation system with distributed computing architecture A system and method for providing geographic data to end users' computing platforms. A server maintains downloadable geographic data that are organized into pre-computed parcels that correspond to pre-determined sub-areas into which the entire geographic region serv... | 09/21/2010 |
| 7797104 | Geographic database with detailed local data A method is disclosed for representing locations in a geographic database in a manner that facilitates navigation and routing. A core map database includes data that represents public roads in a geographic region. Each of a plurality of location map databases includ... | 09/14/2010 |
| 7791500 | Providing sponsorship information alongside traffic messages A method and system for providing sponsorship information to a user of a traffic message receiver is disclosed. Sponsorship messages are sent to the traffic message receiver and include data to be stored in the memory of the receiver. The transmission of the sponsor... | 09/07/2010 |
| 7765055 | Data-driven traffic views with the view based on a user-selected object of interest Traffic flow data is obtained for a road system that encompasses a predefined geographical region. A user then selects an object of interest within the geographical region. The object of interest has a corresponding geographical location. A graphical map of the road... | 07/27/2010 |
| 7755509 | Use of pattern matching to predict actual traffic conditions of a roadway segment Actual traffic conditions of a roadway segment are predicted by providing a plurality of historical roadway condition patterns of the roadway segment in a database, obtaining an electronic representation of a current roadway condition pattern of the roadway segment,... | 07/13/2010 |
| 7739044 | Method of collecting information for a geographic database for use with a navigation system A method for collecting geographic data identifies a pedestrian segment associated with a path. Location information for the pedestrian segment is collected. Additionally, lighting level attribute information is collected for the pedestrian segment. The location inf... | 06/15/2010 |
| 7737830 | Electronic navigation system and method The invention provides a system for providing tracking information. The system includes a base unit that receives a request from a first mobile unit and provides a response to the first mobile unit. The base unit obtains a current position of a second mobile unit. T... | 06/15/2010 |
| 7730049 | Method for representing the vertical component of road geometry and computing grade or slope A geographic database represents roads including an altitudinal component of the geometry of the roads. The altitudinal component of the geometry of roads is represented using data that indicate straight line segments and vertical curves, in particular parabolic ver... | 06/01/2010 |
| 7689621 | Multi-dimensional spatial index for a geographic database A multi-dimensional spatial index includes at least two dimensions that define physical boundaries of the features represented by the indexed data. In addition, the multi-dimensional spatial index includes at least one additional dimension that represents another pr... | 03/30/2010 |
| 7660666 | Geographic database with detailed local data A method is disclosed for representing locations in a geographic database in a manner that facilitates navigation and routing. A core map database includes data that represents public roads in a geographic region. Each of a plurality of location map databases includ... | 02/09/2010 |
| 7657367 | Method of developing traffic messages A method is disclosed for developing traffic messages. The method obtains traffic data indicating collected traffic speeds at various locations on a road network. Traffic messages are developed from the traffic data. The method obtains ground truth data indicating g... | 02/02/2010 |
| 7640595 | Computing system with decryption functions and secure data product A navigation system with decryption functions. The navigation system may receive from a portable data storage medium an encrypted authentication key, an encrypted first portion of a geographic database, and an unencrypted second portion of the geographic database. T... | 12/29/2009 |
| 7634352 | Method of displaying traffic flow conditions using a 3D system A computer-implemented method of displaying traffic conditions on a road system includes creating a 3D graphical map of the road system that includes one or more segments. The status of at least one of the segments on the 3D graphical map is determined. The status o... | 12/15/2009 |
| 7627426 | Geographic database including data indicating wireless coverage and method and system for use thereof Wireless coverage data are associated with a geographic database that contains data that represent a road network in a geographic region. The wireless coverage data indicate areas within the geographic region in which navigation-related services or data from a navig... | 12/01/2009 |
| 7623965 | Map display for a navigation system A system and method are disclosed for displaying map information on a portable computing device. When approaching a location at which maneuvering guidance is to be provided by the portable computing device, the portable computing device presents alternating images o... | 11/24/2009 |
| 7613917 | Method and system for mass distribution of geographic data for navigation systems A system and method for mass distribution of data products, such as geographic databases. An authorization server maintains a first portion of each of several data products, and each of several data distribution terminals maintains the second portion of each data pr... | 11/03/2009 |
| 7561959 | Method of collecting information for a geographic database for use with a navigation system A navigation system determines a route between a first location on a road network and a second location in a facility off of the road network. The system composes individual guidance messages for travel along a portion of the route on the road network. A pre-compose... | 07/14/2009 |
| 7535470 | Article of manufacture for displaying traffic flow data representing traffic conditions An article of manufacture for displaying traffic flow data representing traffic conditions on a road system includes creating a graphical map of the road system which includes one or more segments. The status of each segment on the graphical map is determined such t... | 05/19/2009 |
| 7499949 | Method and system for obtaining recurring delay data using navigation systems A method for collecting data for a geographic database is disclosed. Speed and position data are collected using a plurality of mobile computing platforms moving in a geographic region. The speed and position data are analyzed to identify a location of a recurring d... | 03/03/2009 |
| 7487041 | Method of collecting information for a geographic database for use with a navigation system A method for collecting geographic data for use with a navigation system identifies a pedestrian segment associated with a path. A text description of the pedestrian segment is collected. The text description includes one of a predetermined number of phrases and nam... | 02/03/2009 |
| 7477988 | Dual road geometry representation for position and curvature-heading A way to represent roads as data is disclosed. Vehicle systems that provide driver assistance features relating to road curvature, such as curve warning systems or lane departure systems, use data that indicates road shape and data that indicate road position. To su... | 01/13/2009 |
| 7460953 | Method of operating a navigation system using images A method of operating a navigation system comprises providing an image of a geographic area through which a portion of a route between an origin and destination passes. The image is an approximate 360-degree image. The method provides a guidance information overlay ... | 12/02/2008 |
| 7432830 | Electronic navigation system and method The invention provides a method and system for providing route guidance and other information from a base unit to a remote unit in response to a request from the remote unit. A query is formatted at the remote unit, the query including the request, and is transmitte... | 10/07/2008 |
