Global Patent Index - EP 0998819 A1

EP 0998819 A1 2000-05-10 - MULTIPLE PROJECTORS ON THE SAME SCREEN GRAPHIC DISPLAY SYSTEM

Title (en)

MULTIPLE PROJECTORS ON THE SAME SCREEN GRAPHIC DISPLAY SYSTEM

Title (de)

DARSTELLUNGSSYSTEM MIT MEHREREN AUF DENSELBEN SCHIRM GERICHTETEN PROJEKTOREN

Title (fr)

SYSTEME D'AFFICHAGE GRAPHIQUE A PROJECTEURS MULTIPLES PROJETANT SUR LE MEME A ECRAN

Publication

EP 0998819 A1 (EN)

Application

EP 98935861 A

Priority

  • US 9815037 W
  • US 5327197 P

Abstract (en)

[origin: WO9904563A1] A projection display system with virtual reality capabilities. The system comprises a multi-pipe graphics engine (27) having a controller (16) cooperating therewith to produce a plurality of different video signals. The system also includes a plurality of projectors (14) which project video images corresponding to and upon receipt of the video signals from the graphics engine and the controller. A screen (30) is positioned relative to the projectors to have the video images projected thereon. The screen, having a top, sides and a bottom, is constructed without supports along the bottom which would interfere with the projection of the images from the projectors completely down to the lowermost bottom periphery of the screen.

IPC 1-7 (main, further and additional classification)

H04N 5/74; H04N 7/18

IPC 8 full level (invention and additional information)

H04N 5/74 (2006.01); H04N 9/12 (2006.01)

CPC (invention and additional information)

H04N 9/12 (2013.01); H04N 5/74 (2013.01); H04N 9/3147 (2013.01)

Citation (search report)

See references of WO 9904563A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9904563 A1 19990128; AU 8502998 A 19990210; CA 2297981 A1 19990128; EP 0998819 A1 20000510

INPADOC legal status


2005-09-07 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050202

2000-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000202

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE