| 主权项 |
1. A device including a user input interface facilitating activating a mode of a set of multiple modes and thereafter selecting an input value key associated with an activated mode, the user input interface comprising three simultaneously presented, functionally distinct, key sets comprising:
a first key set, comprising at least two keys, for selectively activating a mode from the set of multiple modes support by the device, the first key set having associated with a set of input values, and multiple modes, wherein each of the multiple modes is associated with a set of input values, and wherein the set of input values is segmented into a set of multiple input value subsets; a second key set for selecting an input value subset of the set of multiple input value subsets associated with a currently activated mode, wherein the second key set simultaneously displays multiple keys for selecting one of the set of multiple input value subsets of the currently activated mode; and a third key set for selecting an input value of a set of multiple input values associated with the currently selected input value subset, wherein the third key set simultaneously displays multiple keys for identifying the set of multiple input values associated with the currently selected input value subset, and wherein the device registers at corresponding one of the set of input values in response to user selection of one of the third key set. |
