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Apple Patents Smart Magnetic Fluids to Let You Feel the Virtual Keys on Your iPad

Apple Patents Smart Magnetic Fluids to Let You Feel the Virtual Keys on Your iPad

One of the biggest problems with virtual keyboards on a touchscreen display such as the iPad’s is that it offers no feedback, which makes them harder to type on than a conventional keyboard. Apple may be working on a solution using coded magnets and ferrofluids that can be built into future iPads.

Cult of Mac scribe Killian Bell writes about a patent recently filed by Apple:

Patently Apple points to an Apple patent that details a system employing coded magnets and ferrofluids to provide haptic feedback on a touchscreen or virtual keyboard:

As one example, a coded magnet may be activated when a proximity sensor detects a finger approaching a touchpad or other surface capable of detecting a touch… As the finger (or other object) approaches the surface, the proximity sensor’s output may activate a coded magnet beneath the portion of the surface about to be impacted. This coded magnet may draw ferrofluid to it, resulting in an upper portion of the surface rising or bulging.

In this manner, a user could be provided with a touch-sensitive surface that gives visual feedback as it senses a keystroke.

Apple has filed other patents dealing with providing feedback on touchscreens. Last July, another filing detailed a method that employed piezoelectrics and “acoustic pulse recognition” to provide users with feedback as they type.

While we can’t be sure which, if any, of these technologies will be used in future devices, the possibilities are promising, and I for one look forward to seeing what Apple does in the future to improve the user experience with it’s products.

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