Patent · US Active

Navigation system

US9068853B2 · kind B2 · utility

1Cited by

1References

20Claims

0Family size

Assignee

HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

Marek Strassenburg-Kleciak · Munich, DE
Stavros Mitrakis · Poing, DE

Key dates

Filing date	Feb 21, 2013
Grant date	Jun 30, 2015
Priority date	—
Expiry date	Feb 21, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01C21/3874
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A navigation system (NS) may include a processor that can retrieve geographic map data from a database, where the geographic map data includes polygonal chains. The processor can determine a straightness value, a length ratio, and/or an angle-to-length ratio for each of the polygonal chains based on segments and/or vertices of the polygonal chain. Also, a first class and a second class of the polygonal chains can be determined based on one or more of the three determined values for each of the polygonal chains. The first class may represent roads that are less winding than the second class, and such an attribute may be beneficial in selecting an optimal route.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.