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:
Nov. 19, 2002
Filed:
Oct. 15, 1999
Applicant:
Inventor:
Jeffrey Alan Millington, Rochester Hills, MI (US);
Assignee:
Magellan DIS, Inc., Rochester Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 2/130 ;
U.S. Cl.
CPC ...
G01C 2/130 ;
Abstract
A vehicle navigation system includes a map database and at least one inertial sensor. When the vehicle encounters a problem road condition, such as a pothole, the problem road condition induces acceleration in the inertial sensor. The navigation system identifies the occurrence of a problem road condition by monitoring the signals generated by the inertial sensor. The navigation system then stores the occurrence and location of the problem road condition. This data can be used later to identify, locate and repair problem road conditions.