Invention Grant
US08348538B2 Expressive pen 有权
表现力笔

Expressive pen
Abstract:
A pen which is able to modulate the trace of the pen in response to a sensory signal of the user, such as for example skin conductance or respiration. The sensory signals represent the mood of the user. By changing the trace of the pen, a change in mood of the user can be expressed.
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