| 摘要 |
The present invention relates to a portable terminal having at least one input key capable of inputting signals and method for inputting letter thereof, a portable terminal capable of inputting three signals by one input key comprises at least one input key, a plurality of sensors sensing electrical signal are positioned in the lower part of the input key, signal values are allocated to the each sensor, the input key may input three different letter, number or symbol by pressing one time with sensors to which the signal values are allocated, at least one sensor positioned on the lower center of the input key is set as a reference sensor unit, each different signal value is allocated to the reference sensor unit, the left sensor unit of the reference sensor unit and the right sensor unit of the reference sensor unit, each of the left sensor unit and the right sensor unit include a plurality of sensors. According to the present invention, in accordance with inputting letter in portable terminal, letter may be inputted more quickly than conventional invention because the present invention is set in a way that three different letter, number or symbol is inputted by pressing one input key one time. Three letter, number or symbol may be inputted through one key and a plurality of sensors are arranged effectively. The inputting accuracy significantly improves avoiding inputting errors by applying and developing various kinds of inputting ways using all characteristics of the present invention. |
