Coupling device

摘要

A coupling device (2) enables two or more displays (4) to be coupled to a common keyboard (6). The coupling device (2) thus improves the efficiency and reduces space of a terminal system by reducing the number of keyboards required. The coupling device (2) includes a sensing circuit (28) for sensing which displays are on and a switching or scrolling circuit (30) for toggling between active displays (4). A terminal system is also disclosed and comprises the coupling device (2) with a number of displays (4) a keyboard (6) and a scrolling switch (22) for enabling the coupling device (2) to scroll between displays (4).