Condenser microphone apparatus and its connecting apparatus

Details Condenser microphone apparatus and its connecting apparatus Condenser microphone apparatus and its connecting apparatus

2005-12-20

2005-12-20

Chin, Vivian (Department: 2644)

Electrical audio signal processing systems and devices

Circuitry combined with specific type microphone or loudspeaker

C381S191000

Reexamination Certificate

active

06978029

ABSTRACT:
A condenser microphone apparatus which is used for a radio apparatus in order to reduce noises generated due to radiation of a high frequency signal of a transmitting unit. A series resistor is provided between a bypass capacitor provided between a drain and a source of an FET and a microphone signal output transmission line in order to prevent a high frequency voltage from being increased due to a resonance of the bypass capacitor and microphone signal output transmission line. Thus, the noises due to the radiation of the high frequency signal can be reduced.

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patent: 0670602 (1995-09-01), None
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