| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard with which the function of the combined key buttons can be achieved by using a single key button. <P>SOLUTION: A keyboard according to the invention includes a plurality of first key buttons, a plurality of second key buttons, a control circuit, and a switching circuit having a plurality of electric switches. The respective second key buttons are connected to the control ends of at least two electric switches in the switching circuit via the control circuit. One end of each electric switch is connected to the first key button. When the second key button is pressed, the control circuit makes the corresponding electric switch conducted, thereby starting the first key button connected to the electric switch. <P>COPYRIGHT: (C)2012,JPO&INPIT |
