| 摘要 |
An ear-microphone (6) for connection to a portable apparatus (1) and use as a Frequency Modulation (FM) radio broadcast receiving antenna is provided. The ear-microphone includes an ear plug (30), a cable (7), a microphone (9), and a filtering unit (12). The ear plug (30) is for connection to an earjack (10). The cable (7) has a predefined length, has an earphone line whose one end is electrically connected to the ear plug and whose other end is electrically connected to at least one earphone. The microphone (9) intervenes in an intermediate portion of the cable and is connected to the ear plug via a microphone line (111) inside the cable. The filtering unit (12) intervenes in the cable and is installed to have an Electro Static Discharge (ESD) protection function. |
