1
Crane Aaron I, Roberts Joseph R, Kozak Frank J: Method and system using positions of cellular phones matched to road network for collecting data. Navigation Tech, March 7, 2001: EP1081666-A2 (5 worldwide citation)

A data collection system and method are disclosed that match the positions of one or more cellular phones, or other types of wireless phones, to data indicating the locations of roads in a geographic area to derive data about phones located in vehicles traveling along the roads. The data about phone ...


2
GALE WILLIAM N, MAYS JOSEPH P, KOZAK FRANK J: Navigable topological maps, Durchsuchbare topologische Karten, Cartes topologiques navigables. NAVTEQ NORTH AMERICA, December 7, 2011: EP2393076-A2

Disclosed herein are methods of providing location-based information with respect to a topological map. A method may include (a) receiving a query for location-related information, (b) optionally generating data representing the topological map, (c) accessing the location-related information in a ma ...


3
Crane Aaron I, Roberts Joseph R, Kozak Frank J: Method and system for collecting data to use position of portable telephone set matched with road network. Navigation Technol, May 11, 2001: JP2001-126179

PROBLEM TO BE SOLVED: To collect geographical data by means of an existing infrastructure that covers all roads by finding the positions of portable telephone sets, etc. SOLUTION: The positions of plural portable telephone sets are found in a certain geographical area by means of a portable telephon ...