Inventor

CHEN CHANG-SIAN

TW2 patents

Patents

2 patents

US8569636B2Oct 29, 2013

Handwritten input device and an angle correcting method thereof

YEH YUN-HSIANG5 citations62

US8653808B2Feb 18, 2014

Method for frequency detection and detecting variation of frequency

YEH YUN-HSIANG0 citations31