Patent application number | Description | Published |
20080198043 | METHOD AND APPARATUS FOR TRANSMITTING POSITION INFORMATION ON A DIGISTAL MAP - The invention purposes to provide a position information transmission method for accurately transmitting a position and a shape on a digital map with a small amount of data. | 08-21-2008 |
20080201072 | METHOD AND APPARATUS FOR TRANSMITTING POSITION INFORMATION ON A DIGISTAL MAP - The invention purposes to provide a position information transmission method for accurately transmitting a position and a shape on a digital map with a small amount of data. | 08-21-2008 |
20080201073 | METHOD FOR TRANSMITTING LOCATION INFORMATION ON A DIGITAL MAP, APPARATUS FOR IMPLEMENTING THE METHOD AND TRAFFIC INFORMATION PROVISION/RECEPTION SYSTEM - Location information transmission apparatus for exchanging information about the on-road location on a digital map, characterized in that apparatus at an information provider comprises a location information converter for converting transmit on-road location information to road shape data including the on-road location consisting of a string of coordinates representing the road shape of a road section having a length that depends on the situation and relative data indicating the on-road location in the road section, and that apparatus at a party receiving the on-road location information comprises a shape matching section for performing shape matching by using the road shape data, identifying the road section on a digital map and identifying the on-road location in the road section by using the relative data. This makes it possible to correctly exchange information about the location on a digital map without defining node numbers or link numbers on a road network. | 08-21-2008 |
20080215233 | ROAD INFORMATION PROVISION SYSTEM, ROAD INFORMATION PROVISION APPARATUS, AND ROAD INFORMATION GENERATION METHOD - An object of the invention is to provide a traffic information provision system which can arbitrarily set a position resolution and a traffic representation resolution and flexibly support a traffic information prediction service. | 09-04-2008 |
20100070170 | METHOD FOR LOCATING ROAD SHAPES USING ERRONEOUS MAP DATA - When transmitting an on-road location on a digital map, an information provider transmits, as on-road location information, string of coordinates information representing the road shape of a road section including the on-road location having a predetermined length, additional information including at least one information item chosen from a group of the attribute information on the road including the road location and detailed information on the nodes in the road section, and relative information indicating the on-road location in the road section. Receiving party receiving this on-road location information performs shape matching to identify the road section on a digital map and uses relative data to identify the on-road location in this road section. The receiving party can identify the road shape with high accuracy even when only a small amount of string of coordinates data is available. This makes it possible to reduce the data transmission amount and identify an on-load location with high accuracy. | 03-18-2010 |
20100106410 | METHOD FOR TRANSMITTING LOCATION INFORMATION ON A DIGITAL MAP, APPARATUS FOR IMPLEMENTING THE METHOD, AND TRAFFIC INFORMATION PROVISION/RECEPTION SYSTEM - Location information transmission apparatus for exchanging information about the on-road location on a digital map, characterized in that apparatus at an information provider comprises a location information converter for converting transmit on-road location information to road shape data including the on-road location consisting of a string of coordinates representing the road shape of a road section having a length that depends on the situation and relative data indicating the on-road location in the road section, and that apparatus at a party receiving the on-road location information comprises a shape matching section for performing shape matching by using the road shape data, identifying the road section on a digital map and identifying the on-road location in the road section by using the relative data. This makes it possible to correctly exchange information about the location on a digital map without defining node numbers or link numbers on a road network. | 04-29-2010 |
20120065879 | METHOD FOR TRANSMITTING INFORMATION ON POSITION ON DIGITAL MAP AND DEVICE USED FOR THE SAME - A method of transmitting position information of a digital map capable of transmitting a position on a digital map efficiently and accurately in which a transmitting side transmits position information including coordinate series information for specifying a vector shape on a digital map and a receiving side execute map matching by the coordinate series information to thereby identify the vector shape on the digital map, the coordinate series information is transmitted by adding azimuth information of a coordinate point included in the coordinate series information thereto. By transmitting shape data by adding the azimuth information thereto, accuracy of matching can be promoted and necessary time for matching can be shortened. | 03-15-2012 |
20120095672 | METHOD FOR LOCATING ROAD SHAPES USING ERRONEOUS MAP DATA - A system includes a transmitting apparatus having a first digital map and a receiving apparatus having a second digital map. The second digital map shows a road segment at a different location from the first digital map due to errors. The transmitting apparatus transmits location information to the receiving apparatus. The location information includes coordinates information, attribute information, and relative information. After receiving the location information from the transmitting apparatus, the receiving apparatus identifies the location of a road segment on the second digital map by using the coordinates information and the attribute information and identifies a location of a traffic event on the road segment on the second digital map by using the relative information. The relative information includes a distance from a start point of a road segment on the first digital map to the location on the road segment on the first digital map. | 04-19-2012 |