Patent ID: 7102542

Claim:
An apparatus for determining output signals according to pressure and depressing time, comprising: a timer; a scanner; and a keyboard connected electronically to the timer and the scanner including a plurality of button keys each having a button key structure, a first conductor membrane, a spacing membrane and a second membrane; wherein the first conductor membrane has a first conductor corresponding to the button key structure, the spacing membrane has an opening corresponding to the first conductor, and the second conductor membrane has a second conductor corresponding to the opening, when in use, the timer is set to zero and stops counting time, then the scanner scans the keyboard to locate the button key which is depressed by an external force, and depending on the external force, the button key structure is selectively connected electronically to the first conductor to output a first signal, and to make the button key structure to connect electronically to the first conductor, and to make the first conductor to run through the opening to connect electronically to the second conductor, and the timer starts counting time when the electronic connection between the first conductor and the second conductor has been confirmed, and the first signal is output when the external pressure is smaller than a set pressure, the first signal is output when the external pressure is larger than the set pressure and the time counted by the timer does not exceed a selected time period, and a second signal is output when the time counted by the timer exceeds the selected time period, the second signal being a composite-key signal.