Circuit diagram, firmware source code and Romaji table for physical input devices for Google Japanese Input announced on April 1st.
Mozc-Morse originates from Google Japanese Input Morse version announced on April 1st 2012. http://www.google.co.jp/ime/-.-.html
Mozc-Flap originates from Google Japanese Input Patapata version announced on April 1st 2013. http://www.google.co.jp/ime/patapata/
These devices showed in the videos are actually connected to a PC via USB. This project hosts the source code and technical documents of those devices.
Background stories (in Japanese):
- Morse version - http://googledevjp.blogspot.jp/2012/06/google.html
- Flip version - http://googledevjp.blogspot.jp/2013/10/google.html
For Mozc-morse, the romaji table decodes dits-dahs to hiragana. By using resource in this project, you can reproduce a physical morse key and try typing text with Mozc and Google Japanese Input.