About 66 results
https://drivepatents.com/patents/978260 · 19 Feb 2014
The method involves extracting set of readings of consecutive positions (p-1-p-3,p-i), and disregarding those position readings. A set quality index is determined based on position readings of set or based on position quality indices. A path length is dete...
https://drivepatents.com/patents/978257 · 19 Feb 2014
The method involves equipping two vehicles moving about a road system (1) with respective onboard unit generating position readings. Average path length is calculated for the road segment based on first and second path lengths. The average path length is s...
https://drivepatents.com/patents/990765 · 15 May 2013
The method involves comparing detected geographical position of object with stored map data. The object is road sign (10), is recognized on vehicle side and distance information of object is evaluated by optical character recognition. The distance informat...
https://drivepatents.com/patents/985621 · 13 Mar 2013
The method involves detecting (100) several predefined marks by vehicle-based video system and aligning (200) recorded video data with data of predefined markings and optically detectable characteristics stored in memory unit. The position and orientation ...
https://drivepatents.com/patents/993314 · 30 Jan 2013
A technique for calculating a location of a first vehicle is described. A method implementation of this technique comprises the steps of detecting, from the perspective of the first vehicle, a movement of a second vehicle relative to the first vehicle, det...
https://drivepatents.com/patents/995886 · 21 Nov 2012
An apparatus and a method for estimating position information in a portable terminal are provided. A position estimation method includes estimating position information of the portable terminal according to a position estimation scheme; compensating for an...
https://drivepatents.com/patents/997095 · 17 Oct 2012
The method involves determining an intersection point (T-0) of the border (5) with a road segment (2) and a reference direction (R-0) in the orientation of the road segment. The vectors (V-i) are continuously projected on the reference direction to retain ...
https://drivepatents.com/patents/1001413 · 13 Jun 2012
Systems and methods for navigation using cross correlation on evidence grids are provided. In one embodiment, a system for using cross-correlated evidence grids to acquire navigation information comprises: a navigation processor coupled to an inertial meas...
https://drivepatents.com/patents/1001945 · 30 May 2012
A road estimation device receives data including a core point (CP) being assigned along a road and being assigned with attributes including at least a shape-relevant attribute being relevant to a road shape for identifying the road. A map data input unit (...
https://drivepatents.com/patents/1001939 · 30 May 2012
A road estimation device receives data including core points (CPa, CPb) assigned along a road and assigned with attributes for identifying the road. An input unit (13) inputs map data including links in a unit of a divided region (Pa, P2, P3). Each link ha...