公开(公告)号：US4790019A

公开(公告)日：1988-12-06

申请号：US752909

申请日：1985-07-08

申请人： Fritz Hueber

发明人： Fritz Hueber

IPC分类号： H04R25/04 ,  H03G1/02 ,  H03G3/00 ,  H04R25/00 ,  H03G3/02

CPC分类号： H03G1/02 ,  H03G3/005 ,  H04R25/558

摘要： A hearing aid comprises a microphone, a battery-operated earphone, and amplifying circuit connected to the microphone output, the amplifying circuit including a frequency-selective circuit component and a sound level adjustment circuit component connected to the frequency-selective circuit component, and a remote sound wave control signal emitter circuit separate from the microphone, earphone and amplifying circuit and emitting sound wave control signals within the range of the microphone input.

摘要翻译： 助听器包括麦克风，电池供电的耳机和连接到麦克风输出的放大电路，放大电路包括连接到频率选择电路部件的频率选择电路部件和声级调节电路部件，以及 远程声波控制信号发射电路与麦克风，耳机和放大电路分离，并在麦克风输入范围内发出声波控制信号。