https://qooah.com/2012/04/28/%e6%9c%89%e5%82%b3%e8%81%9e%e6%8c%87-samsung-%e6%9c%89%e6%a9%9f%e6%9c%83%e6%8e%a8%e5%87%ba-7-%e5%90%8b%e9%9b%99%e5%b1%8f%e5%b9%95%e5%b9%b3%e6%9d%bf%e9%9b%bb%e8%85%a6/