Patent ID: 6381475
Filing Date: 2002-04-30
Classification: G06F,H04M

Abstract:
A mobile station, which comprises:first means for grouping functions in accordance with a specific menu hierarchy, the hierarchy comprising a menu level having a minimum of one menu comprising a set of function alternatives and said set of alternatives comprising two function alternatives at a minimum; second means for presenting said function alternatives to a user of the mobile station; and third means for using the menus of the device for carrying out a specific function alternative, wherein the third means comprise an operating knob, which can be moved in different positions including movement between a first and second position, and the mobile station comprises: a memory for storing a current state of the mobile station in each position of the operating knob, and in said first position, the mobile station is arranged to carry out said specific function alternative of said set of function alternatives of said menu, and in said second position, the mobile station is arranged to undo the last implemented function alternative by retrieving from the memory the state of the mobile station preceding the last implemented function alternative of said set of function alternatives of said menu and by returning to the retrieved state.