| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a keyboard switch which does not cause malfunctioning by its switching operation or avoids malfunctioning caused by the outside noises such as a static noise. SOLUTION: A keyboard switch 1, which has a switch 3 and a multiplexer 5 to connect a keyboard 2 to either one of personal computers PC#1 or PC#n by using a switch 3, is provided with a timer 12 to count the predetermined time (Y) exceeding the time (T) from when the PC and the keyboard 2 are turned on until the communication is finished between them, and a switch effect deciding switch 11 which makes the switching made by the switch 3 ineffective until the predetermined time (Y) is over but makes it effective after the predetermined time is over.</p> |
