https://qooah.com/2011/03/08/panasonic%e8%a8%88%e5%8a%83%e5%b0%87%e6%8e%a8%e5%87%ba%e4%b8%89%e9%83%a8-android-%e6%99%ba%e8%83%bd%e6%89%8b%e6%a9%9f/