Patent ID: 7932841

Claim:
A multifunctional device comprising: a wireless signal interface; and an integral user input interface facilitating activating a functional mode for the integral user input interface and segmenting a set of input values associated with a selected functional mode into multiple domain levels, wherein ones of the multiple domain levels each contain a subset of the set of input values, the integral keypad comprising multiple distinct key sets, the multiple distinct key sets comprising: a set of function select keys for selecting the functional mode from a set of functional modes of operation supported by the multifunctional device, a set of domain control keys, comprising at least two keys, for selecting one of the multiple domain levels, wherein the selected functional mode value sets associated with each domain control key are displayed in association with the domain control keys, and a set of input keys, wherein ones of the set of input keys are each associated with a signal, representative of one of a subset of the set of input values associated with a currently selected one of the multiple domain levels, registered by the multifunctional device in response to actuation of one of the set of input keys, and, wherein the selected domain mode value associated with each input control key is displayed in association with the input keys.