- 专利标题： PRE-AMPLIFIER CIRCUIT INCLUDING MICROPHONE PRE-AMPLIFIER STAGE
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申请号： EP17202307.9申请日： 2017-11-17
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公开(公告)号： EP3407488A1公开(公告)日： 2018-11-28
- 发明人: DE VRIES, Sebastiaan
- 申请人： Tymphany HK Limited
- 申请人地址： Dominion Centre 43-59 Room 1307-8 Queen's Road East Wanchai Hong Kong CN
- 专利权人： Tymphany HK Limited
- 当前专利权人： Tymphany HK Limited
- 当前专利权人地址： Dominion Centre 43-59 Room 1307-8 Queen's Road East Wanchai Hong Kong CN
- 代理机构： Parker, Andrew James
- 优先权： GB201708416 20170526
- 主分类号： H03F3/181
- IPC分类号： H03F3/181 ; H04R3/00 ; H03F3/68 ; H03F1/02 ; H03F3/45 ; H03F1/26
摘要：
A pre-amplifier circuit including a microphone pre-amplifier stage with a direct injection (DI) unit that provides a high impedance source signal and a low impedance XLR connection operable without a line or mic switch.
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