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US 8,013,847 B2Granted
Magnetic actuator for providing haptic feedback
AssigneeImmersion Corporation
InventorGeorge V. Anastas
Life of this patent
Estimating the term…
Abstract
Apparatus for providing haptic feedback are described. One described apparatus comprises a braking surface, an electromagnet core disposed in the braking surface, a disk operable to contact the braking surface such that a gap is defined between the disk and the braking surface, and a damping material disposed within the gap.
Claims25
An apparatus comprising:
- a braking surface;
- an electromagnet core completely disposed in the braking surface;
- a disk operable to contact the braking surface such that a gap is defined between the disk and the electromagnet core;
- and
- a damping material disposed within the gap.
2 more elements
An apparatus comprising:
- a manipulandum;
- and
- a resistive actuator coupled to the manipulandum, the resistive actuator comprising:
- a braking surface;
- an electromagnet core completely disposed in the braking surface;
- a disk operable to contact the braking surface such that a gap is defined between the disk and the electromagnet core;
- and
- a damping material disposed within the gap.
5 more elements
A method comprising:
- providing a braking surface;
- providing an electromagnet core completely disposed in the braking surface;
- providing a disk operable to contact the braking surface such that a gap is defined between the disk and the electromagnet core;
- and
- providing a damping material disposed within the gap.
2 more elements
A method comprising:
- providing a manipulandum;
- and
- providing a resistive actuator coupled to the manipulandum, the resistive actuator comprising:
- an braking surface;
- an electromagnet core completely disposed in the braking surface;
- a disk operable to contact the braking surface such that a gap is defined between the disk and the electromagnet core;
- and
- a damping material disposed with the gap.
5 more elements
An apparatus comprising:
- a manipulandum;
- and
- a resistive actuator coupled to the manipulandum, the resistive actuator comprising:
- a cylindrical braking surface having a braking surface length, a cylindrical electromagnet core completely disposed in the cylindrical braking surface, the cylindrical electromagnetic core having an electromagnetic core length less than the braking surface length,
- a disk operable to contact the cylindrical braking surface thereby defining a gap between the disk and the cylindrical electromagnet core, and
- a damping material, disposed within the gap, the damping material comprising a damping grease;
- and
- a processor configured to generate a control signal wherein the control signal is configured to produce a haptic effect.
5 more elements
Dependencies are inferred from the claim text.