Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2006-08-15
2006-08-15
Hjerpe, Richard (Department: 2674)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S163000, C345S167000
Reexamination Certificate
active
07091950
ABSTRACT:
A method and apparatus for providing force sensations in virtual environments includes a human/computer interface device and method used in conjunction with a host computer and which can provide feel sensations to a user of the device. A user manipulatable object physically contacted by a user, such as a joystick, stylus, pool cue, or other object, is movable in multiple degrees of freedom using a gimbal mechanism. A local microprocessor, separate from the host computer, enables communication with the host computer and receives commands from the host, decodes the commands, outputs actuator signals in accordance with commands, receives sensor signals, and reports data to the host in response to commands. Actuators generate feel sensations by providing a force on the user object in response to actuator signals from the local microprocessor, and sensors detect the motion of the user object and reports sensor signals to the local microprocessor. Memory is included locally to the local microprocessor for storing program instructions and routines enabling feel sensations and host-microprocessor communication. The feel sensation generated on the user is, in one embodiment, a damping sensation simulating a feel of motion through a fluid. In another embodiment, the feel sensation is a wall sensation simulating the feel of impacting a surface or obstruction.
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Jackson Bernard G.
Rosenberg Louis B.
Hjerpe Richard
Immersion Corporation
Lesperance Jean
Ritchie David B.
Thelen Reid & Priest LLP
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