If US patent application 20120062371 is to be correctly understood, Nokia has at least thought about a topical haptic notification system. The first claim covers “An apparatus comprising: a material attachable to skin, the material capable of detecting a magnetic field and transferring a perceivable stimulus to the skin, wherein the perceivable stimulus relates to the magnetic field.” It then goes on to clarify its relation to telecommunications messages and communications indications. Based on ferromagnetic powder, the material would respond to magnetic fields and vibrate in response.
2DayBlog.com, Nokia applies for skin-friendly haptic material patent, hints at notification system
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