Turning a Laptop into a Tablet
The PT Pen can turn any laptop screen 16 inches or smaller into a stylus-based touchpad, allowing it to be used as a virtual whiteboard or sketch tablet. The PT Pen can also be used to annotate documents, and it works with the handwriting recognition software built into most operating systems. The position of the stylus is determined with ultrasound.
Product: PT Pen
Companies: Bald Technologies
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