Apple wins a core iPhone multitouch patent

The U.S. Patent and Trademark Office has awarded Apple the patent to one of the core iPhone multitouch functions. Patently Apple reports that the patent involves the oscillator signal and circuit, which are key to sensing when someone is touching the iPhone display. This comes on the heels of Apple winning a patent battle against HTC, which was followed by Apple being awarded the patent that covers the ability to switch to an app while on a phone call.

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