| 摘要 |
PURPOSE: An automatically tracing microphone device is provided to install a microphone one by one regardless of the number of users by multi-staking cards on a PC board. CONSTITUTION: An automatically tracing microphone device comprises a microphone(10), a driving system(20), and an input system(30). The microphone(10) amplifies voice signals to line outputs according to the switching operation of a contact switch. The driving system(20) drives a camera according to the output of the microphone(10). The input system(30) sets the basic value for driving the driving system(20). The microphone(10) comprises a contact switch(11) for selecting a microphone and an LED(12) which displays the microphone which is selected by the contact switch(11).
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