logo

For the Inventor, By the Inventor

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.:

US 7460120 B1

PDFFull Text
Date of Patent:
Dec. 02, 2008

Filed:

Nov. 10, 2004

Map display apparatus

Applicants:

Tadashi Yoshida, Osaka, JP;

Hitoshi Araki, Hirakata, JP;

Keiichi Senda, Kyoto, JP;

Masato Yuda, Osaka, JP;

Yoshiteru Kawasaki, Toyonaka, JP;

Inventors:

Tadashi Yoshida, Osaka, JP;

Hitoshi Araki, Hirakata, JP;

Keiichi Senda, Kyoto, JP;

Masato Yuda, Osaka, JP;

Yoshiteru Kawasaki, Toyonaka, JP;

Assignee:

Panasonic Corporation, Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Kee M Tung

Assistant Examiner:

Crystal Murdoch

Int. Cl.
CPC ...
G06T 15/00 (2006.01); G06T 15/10 (2006.01); G06T 1/00 (2006.01); G06F 17/00 (2006.01); G06G 5/00 (2006.01); G08G 1/123 (2006.01); G01C 21/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A map display apparatus includes a view transformation matrix generation unit which generates a view transformation matrix, including four rows and four columns, for transforming a global coordinate of a three-dimensional object into a view coordinate system; a view transformation matrix change unit which (i) changes, to 0, (a) the value of the first row in the second column and (b) the value of the third row in the second column in the view transformation matrix, in the case where the coordinate transformation is executed by multiplying a coordinate with the view transformation matrix from the left side of the coordinate, and (ii) changes, to 0, (a) the value of the second row in the first column and (b) the value of the second row in the third column in the view transformation matrix, in the case where the coordinate transformation is executed by multiplying the coordinate with the view transformation matrix from the right side of the coordinate; and a view transformation unit which transforms the global coordinate into the view coordinate system using the changed view transformation matrix.

Find Patent Forward Citations

Loading…