Mobile device keyboard having three-direction keys
摘要
<p>A keyboard for a mobile device is provided that includes a plurality of three-direction keys. The three-direction keys may include three protruding portions that each correspond to at least one character of the keyboard. At least one of the three-direction keys may be inverted with respect to other ones of the three-direction keys. The three-direction keys may be positioned on the mobile device to provide characters in at least three rows the keyboard.</p>
申请公布号
EP1755019(A1)
申请公布日期
2007.02.21
申请号
EP20050017251
申请日期
2005.08.08
申请人
RESEARCH IN MOTION LIMITED
发明人
GRIFFIN, JASON T.;LAZARIDIS, MIHAL;RAK, ROMAN PETER