摘要 |
A data entry system comprising a group of data symbols comprising at least one of alphabetical symbols, numeric symbols, and commands ( 128-136 ), divided into subgroups. Each subgroup is associated with at least a portion of the user's finger ( 102-120 ). The system also comprises a keypad ( 126 ) defining a plurality of keys, wherein each key contains at least one of the symbols. At least one finger recognition system ( 100 ) is configured to recognize the portion of the finger when it touches a key, and to select the subgroup symbols associated with that portion of the finger interacting with that key. |