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1. (WO1992009984) LOW COST VIRTUAL REALITY SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009984 International Application No.: PCT/US1991/009086
Publication Date: 11.06.1992 International Filing Date: 02.12.1991
Chapter 2 Demand Filed: 29.06.1992
IPC:
G06F 3/00 (2006.01) ,G09B 9/22 (2006.01) ,G09B 9/30 (2006.01) ,G09B 9/32 (2006.01) ,G09B 21/00 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
B
EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
9
Simulators for teaching or training purposes
02
for teaching control of vehicles or other craft
08
for teaching control of aircraft, e.g. Link trainer
22
including aircraft sound simulation
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
B
EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
9
Simulators for teaching or training purposes
02
for teaching control of vehicles or other craft
08
for teaching control of aircraft, e.g. Link trainer
30
Simulation of view from aircraft
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
B
EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
9
Simulators for teaching or training purposes
02
for teaching control of vehicles or other craft
08
for teaching control of aircraft, e.g. Link trainer
30
Simulation of view from aircraft
32
by projected image
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
B
EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
21
Teaching, or communicating with, the blind, deaf or mute
Applicants:
VPL RESEARCH, INC. [US/US]; 656 Bair Island Road Suite 304 Redwood City, CA 94063, US
Inventors:
LASKO-HARVILL, Ann; US
TEITEL, Michael, A.; US
LANIER, Jaron, Z.; US
Agent:
DELAND, James, A.; Townsend and Townsend One Market Plaza 2000 Steuart Tower San Francisco, CA 94105, US
Priority Data:
621,12730.11.1990US
Title (EN) LOW COST VIRTUAL REALITY SYSTEM
(FR) SYSTEME A REALITE VIRTUELLE DE FAIBLE COÛT
Abstract:
(EN) Apparatus is disclosed for viewing computer generated images (100) and for tracking the positions of the user's head (265) and hand (266). One alternative of the apparatus includes a frame element (210), versatilely mountable, with sensors (230) for the head tracking of a user whose bodily movement is constrained to a small area. Short range and inexpensive sensors are deployed for tracking the position of the user's head (265); these sensors (230) are deployed partly on the user's head (220) and partly on the tracking frame (210). All the electronics for tracking and user input are enclosed in a mobile pack. In another alternative of the tracking invention natural forces such as gravity, the Earth's magnetic field, and inertia are used, as additional references. The display allows for interchangeable optical elements so that it may be tailored to suit the needs of a particular user or application. One optical element (140) disclosed is a bicolor polarizer (130), which allows an LCD to inexpensively provide a bicolor display without loss of resolution.
(FR) On décrit un appareil permettant de visualiser des images de synthèse (100) et de suivre les positions de la tête (265) et de la main (266) de l'utilisateur. Un mode de réalisation possible de l'appareil comprend un élément de structure (210) à montage polyvalent, équipé de détecteurs (230) permettant de suivre la tête d'un utilisateur dont le mouvement corporel est limité à une petite zone. Des détecteurs de faible portée sont répartis de façon à suivre la position de la tête de l'utilisateur (265); ces détecteurs (230) sont répartis partiellement sur la tête de l'utilisateur (220) et partiellement sur la structure de guidage (210). L'ensemble de l'électronique destinée au suivi de position et aux données d'entrée de l'utilisateur est contenu dans un boîtier mobile. Selon un autre mode de réalisation de l'invention, des forces naturelles telles que la pesanteur, le champ magnétique terrestre, et l'inertie sont utilisées comme références supplémentaires. L'écran permet l'inclusion d'éléments optiques interchangeables de sorte qu'il soit adapté aux besoins spécifiques d'un utilisateur ou à une applicatition particulière. Un élément optique (140) décrit est constitué d'un polariseur bicolore (130) qui permet un affichage à cristaux liquides bicolores peu coûteux n'entraînant pas de perte de résolution.
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0575332DK0575332