The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2002
Filed:
Jun. 21, 2000
Isahiko Tanaka, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In a digital map data processing device and a digital map data processing method which are useful to generate an accurate road map and particularly can be used for navigation and control of traveling vehicles according to the generated road map, a map image processing station acquires image data of the ground surface through a satellite communication station , and an image processing section converts the image data into orthoimage data which is viewed substantially from directly above and free from distortion. A data extraction section extracts a skeleton map (road network data) formed of roads and related stereoscopic information according to the orthoimage data, a data conversion section calculates base road data from the skeleton map, and a map generation section overlays necessary attribute data to generate highly accurate digital orthomap data free from a distortion. The digital orthomap data is sent to a vehicle through a transmission section and used for navigation control and running control.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile