发明名称 |
Wireless microphone device. |
摘要 |
<p>In a wireless microphone device, with which a plurality of audio signals can be reproduced with one audio signal reproducing device, a first audio signal picked up by a microphone (2) and a second audio signal picked up by an external microphone (10) and provided at an external input terminal (4) are applied to an addition circuit (6), where they are added to each other to provide an output signal which is applied to a modulating circuit (7). In the modulating circuit (7), a carrier signal is modulated with the output signal of the addition circuit (6) to form a modulation signal. The modulation signal is transmitted through an antenna (9). The modulation signal thus transmitted is received and demodulated by an audio signal reproducing device so that the audio signals are reproduced, allowing a plurality of microphones to be used without "beating" of the audio signals occurring. <IMAGE></p> |
申请公布号 |
EP0544389(A1) |
申请公布日期 |
1993.06.02 |
申请号 |
EP19920305960 |
申请日期 |
1992.06.29 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
FUJIMOTO, HIDEKI;YOKOYA, MASATOSHI;SUEYOSHI, SUSUMU;HIRAI, MOTOHARU;SAWADA, KAZUNORI;MORIGAKI, TOSHIO;MATSUSHITA, HITOSHI |
分类号 |
H04B1/034;H04B1/04;H04R3/00 |
主分类号 |
H04B1/034 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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