Patent reveals Apple Watch with flat Digital Crown that recognizes touch

A new Apple patent reveals an Apple Watch with a flat Digital Crown could be made to include an optical sensor to register tactile gestures. Think of how the iPod went from havinga physically rotating wheel and mechanical buttons to non-movable Click Wheel with a capacitive touch surface.
William Gallagher for AppleInsider:“Portable electronic devices, such as watches, have become increasingly popular,” says Apple in “Watch with Optical Sensor for User Input”, US Patent N