Method and apparatus for designing and controlling force...

G - Physics – 06 – F

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G06F 3/033 (2006.01) G06F 3/00 (2006.01) G09G 5/08 (2006.01)

Patent

CA 2287349

A method and apparatus for commanding and designing force sensations for use with a force feedback interface device (14). A force feedback interface device (14) is connected to a host computer (12) that implements a graphical environment. The host (12) sends commands and command parameters to the interface device (14) to initiate and characterize force sensations output on a user manipulatable object (34), such as a joystick. The interface device includes a local microprocessor (26) for implementing force sensations by controlling actuators (30) and reading sensors (28) according to the host commands. Host commands are included for initiating and characterizing condition forces, such as walls, effect (wave) forces, such as periodic waves, and dynamic force sensations. A graphical design interface tool displays graphical representations of force sensations and allows intuitive and flexible design and modification of the force sensations.

L'invention porte sur un procédé et un appareil de commande et de conception de sensations d'effort destiné à être utilisé avec un dispositif (14) d'interface à retour d'effort. Le dispositif (14) d'interface à retour d'effort est raccordé à un ordinateur hôte (12) qui met en oeuvre un environnement graphique. L'hôte (12) envoie des commandes et commande des paramètres au dispositif (14) d'interface de façon à déclencher et caractériser des sorties de sensations de force sur un objet (26) pouvant être manipulé par un utilisateur tel qu'une manette. Le dispositif interface comprend un microprocesseur (26) local qui met en oeuvre des sensations de force en réglant des actionneurs (30) et en lisant des capteurs (28) conformément aux commandes de l'hôte. Les commandes de l'hôte permettent de déclencher et de caractériser des forces d'état telles que celles des murs, des forces (ondulatoires) d'effets telles que celles des ondes périodiques, et des sensations de force dynamique. Un outil d'interface de conception graphique affiche des représentations graphiques de sensations de force et permet une conception et une modification intuitives et flexibles des sensations de force.

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