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:
Sep. 04, 2012
Filed:
Mar. 29, 2007
Maung Han, Torrance, CA (US);
Maung Han, Torrance, CA (US);
Alpine Electronics, Inc., Tokyo, JP;
Abstract
A method and apparatus for a navigation system detects a hidden point on a route on a monitor screen showing a three-dimensional map when visibility of the route begins to be lost, and provides a warning message including relevant information that is helpful to navigate the hidden point. The method includes steps of displaying a three-dimensional map image which includes an image of a route on which a user or user's vehicle is travelling, detecting a hidden point of the route on the three-dimensional map image at which the route becomes invisible by an obstruction object when viewed from a current position of the user, and notifying the user about the hidden point on the route thereby enabling the user to know the hidden point on the route in advance.