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Qualcomm Ultra Sound NotePad digitizes notes... by listening to your pen doodles - Liliputing
Companies have been offering phones, tablets, and other devices with stylus or digital pen support for years. But most have relied on a passive stylus that touches your screen or an “active” stylus that communicates with your device electronically. Chip maker Qualcomm is showing off something new — a stylus that can work with a …