Image display apparatus

IIIIIIH

US007843401B2

(12) United States Patent

Morikawa et al.

(io) Patent No.: (45) Date of Patent:

US 7,843,401 B2 Nov. 30, 2010

(54) IMAGE DISPLAY APPARATUS

(75) Inventors: Osamu Morikawa, Tsukuba (JP); Kenji Toda, Tsukuba (JP); Toshihiro Katashita, Tsukuba (JP); Yohei Hori, Tsukuba (JP)

(73) Assignee: National Institute of Advanced

Industrial Science and Technology,

Tokyo (JP)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 1014 days.

(21) Appl.No.: 11/526,630

(22) Filed: Sep. 26, 2006

2001/0006375 Al * 7/2001 Tomookaetal 345/4

2003/0197659 Al * 10/2003 Arai 345/1.1

2004/0113865 Al * 6/2004 Oku et al 345/4

FOREIGN PATENT DOCUMENTS

JP 2001-148846 5/2001

OTHER PUBLICATIONS

Osamu Morikawa, et al.: "Image Federation on Multi-input Smart Display", Sep. 27, 2005, The Virtual Reality Society of Japan.

* cited by examiner

Primary Examiner—Richard Hjerpe
Assistant Examiner—Tom V Sheng

(74) Attorney, Agent, or Firm—Obion, Spivak, McClelland, Maier & Neustadt, L.L.P.

An image display apparatus for displaying image signals of a form of packets incorporating display position information includes a combination of unit display devices so as to acquire translational objectivity. Each of the unit display devices including a receiving part for receiving image signals, a processing part for dividing input image signals into those falling inside and those falling outside a range for display or those subject to or those not subject to display based on the display position information and serving to process display positions of the image signals falling outside the range for display or not subject to display, an output part for outputting the processed image signals along an axis of translational objectivity to a subsequent unit display device, and a display part for displaying the images falling in the range for display, the image display apparatus displaying the image signals as a whole, with the image signals processed sequentially with the unit display devices.

12 Claims, 8 Drawing Sheets