Ahnmatae Phonetic Hangul Keyboard (the official website: <a rel="nofollow" class="external free" href="http://www.ahnmatae.org">http://www.ahnmatae.org</a> - now URL broken), a Korean keyboard layout invented by Matthew Y. Ahn, a retired Episcopal Church (of the United States) clergyman. This layout is patented in the United States and the Republic of Korea. It is a new Sebeolsik (three-set type) layout because it has three set of hangul letters: <i>choseongs</i> <div lang="ko" dir="ltr" class="description ko" style="display:inline;">초성(初聲)</div> or <i>cheotsoris</i> <div lang="ko" dir="ltr" class="description ko" style="display:inline;">첫소리</div> (onset consonants), <i>jungseongs</i> <div lang="ko" dir="ltr" class="description ko" style="display:inline;">중성(中聲)</div> or <i>gaundetsoris</i> <div lang="ko" dir="ltr" class="description ko" style="display:inline;">가운뎃소리</div> (vowels), and <i>jongseongs</i> <div lang="ko" dir="ltr" class="description ko" style="display:inline;">종성(終聲)</div> or <i>kkeutsoris</i> <div lang="ko" dir="ltr" class="description ko" style="display:inline;">끝소리</div> (final consonants). The green letters are choseongs, the orange ones are jungseongs, and the red ones are jongseongs.
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