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:
Mar. 22, 2005
Filed:
May. 28, 2003
Kiyozumi Fujiwara, Yokohama, JP;
Kiyozumi Fujiwara, Yokohama, JP;
Alpine Electronics, Inc., Tokyo, JP;
Abstract
A navigation route obstructed-by-building detection unit detects that a navigation route is obstructed by buildings, and a modified navigation route drawing unit in a navigation route drawing unit displays the navigation route by lifting it on or above the buildings. At the time, a ratio of obstructed portion calculating unit calculates the ratio of the portion of the navigation route obstructed by the buildings, and a display of navigation route in lifted state discriminating unit determines whether or not the ratio is equal to or larger than a predetermined value. When the ratio is equal to or larger than the predetermined value, an amount of navigation route displayed in lifted state calculating unit calculates a lifting amount, and a modified navigation route drawing unit displays the navigation route by lifting it by the lifting amount. Thereafter, a building/landmark image forming unit semi-transparently draws the portion of the buildings corresponding to the portion of the navigation route that is lifted and displayed. With the above arrangement, a user can easily observe the navigation route which is otherwise poor in observability.