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.

Date of Patent:
Nov. 10, 2020

Filed:

Jan. 09, 2015
Applicants:

Tomtom Traffic B.v., Amsterdam, NL;

Tomtom Global Content B.v., Amsterdam, NL;

Inventors:

Arne Kesting, Berlin, DE;

Nikolaus Witte, Berlin, DE;

Jean-Claude Mattelaer, Gentbrugge, BE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/36 (2006.01); G01C 21/32 (2006.01); G08G 1/01 (2006.01); G01C 21/34 (2006.01);
U.S. Cl.
CPC ...
G01C 21/3691 (2013.01); G01C 21/32 (2013.01); G01C 21/3492 (2013.01); G08G 1/0112 (2013.01); G08G 1/0133 (2013.01); G08G 1/0141 (2013.01);
Abstract

A method of detecting the closure of a navigable element forming part of a network of navigable elements within a geographic area. A server obtains positional data relating to the movement of a plurality of devices along the navigable element with respect to time. The positional data is used to determine an elapsed time since a device was last detected on the navigable element, and the determined elapsed time is compared to an expected time interval between consecutive devices being detected on the navigable element. The navigable element is identified as being potentially closed, subject to one or more optional validation steps, when the determined elapsed time exceeds the expected time interval, e.g. by a predetermined amount.


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