Portable communication device with knob rotation locking mechanism

Abstract

A portable communication device includes a main housing, and a knob coupled to the main housing. The knob is rotatable about a first axis that extends into the main housing, and the knob includes a channel that extends partially circumferentially about the first axis. The portable communication device also includes a button coupled to the main housing. The button is moveable linearly along a second axis that is parallel to the first axis, and the button includes a projection that is sized and shaped to extend into the channel. The button is movable between a first position in which the projection is within the channel, and a second position in which the projection is outside of the channel.

Dependencies are inferred from the claim text.