Excuse me, can I apply for a patent for the layout and matching input scheme of mobile phone keyboard? What kind? There is no specific appearance, just layout and input scheme.

I don't know if I understand you correctly, but the keyboard layout and matching input scheme can be protected by an invention patent. The materials include the specific keyboard layout, the rules of character separation and the operation flow of responding to input, that is, how to deal with the process steps of generating corresponding characters when obtaining the key signals of the keyboard. For details, you can refer to some patents of input methods, such as the five-type stroke coding input method and its input keyboard. The application number is 2005 10036872.4.