https://qooah.com/2014/03/14/samsung%e7%94%b3%e8%ab%8b%e6%96%b0%e6%89%8b%e5%8b%a2%e5%b0%88%e5%88%a9-%e5%8f%aa%e8%a6%81%e7%95%ab%e5%87%ba%e9%87%8d%e7%96%8a%e5%b0%b1%e5%8f%af%e8%a7%a3%e9%8e%96/
Samsung申請新手勢專利, 只要畫出重疊就可解鎖