Generating perceptible touch stimulus
AssigneeNokia Corporation
InventorZoran Radivojevic
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Abstract
Apparatus including: a body portion having a surface comprising a first surface electrode and a second surface electrode, spaced from the first surface electrode, and a controller configured to apply a time varying potential difference between the first surface electrode and the second surface electrode and configured to control at least the time variation in the potential difference.
Claims20
Apparatus comprising:
- a body portion having a surface comprising a first surface electrode and a second surface electrode, spaced from the first surface electrode, and
- a controller configured to apply a time varying potential difference between the first surface electrode and the second surface electrode and configured to control at least the time variation in the potential difference.
A method comprising:
- applying a time varying potential difference between a first surface electrode of a body of an apparatus and a second surface electrode of the body of the apparatus;
- and
- controlling at least the time variation in the potential difference.
A record carrier tangibly embodying a computer program comprising computer program instructions, which when loaded in a processor enable the processor to:
- enable application of a time varying potential difference between a first surface electrode of a body of an apparatus and a second surface electrode of the body of the apparatus;
- and
An electrically modulated moving touch stimulus apparatus comprising:
- a body portion having a smooth surface comprising an optically transparent surface electrode;
- and
- a controller configured to generate a time varying electric field at the surface electrode such that in use electric current flow via the surface electrode does not exceed 100 μA and configured to control at least the time variation in the electric field.
Dependencies are inferred from the claim text.