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公开(公告)号：US07231037B2
公开(公告)日：2007-06-12
申请号：US10508135
申请日：2003-03-19
CPC分类号： H04R3/00 , H04B1/64 , H04M1/6016 , H04R5/033
摘要： An output reducing system for a telephone system, e.g., implemented in a headset, includes an input line and an output line, wherein the input line transmits an incoming signal to an output transducer and the output line transmits an outgoing signal from an input transducer, and a compressor system is provided in the input line for reducing the output signal level.
摘要翻译： 用于电话系统的输出降低系统，例如在头戴式耳机中实现的，包括输入线和输出线，其中输入线将输入信号传输到输出换能器，输出线传输来自输入换能器的输出信号， 并且在输入线路中设置压缩机系统以减小输出信号电平。
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公开(公告)号：US08861747B2
公开(公告)日：2014-10-14
申请号：US13166995
申请日：2011-06-23
摘要： The application relates to a compressor circuit for a listening device, the compressor circuit comprising a pair of input terminals and a pair of output terminals, the compressor circuit being adapted for receiving an electric input signal representing an audio signal with an input voltage swing Vipp at the input terminals and for providing a possibly compressed version of the input signal as an output signal with an output voltage swing Vopp at the output terminals, the compressor circuit comprising. The application further relates to a listening device and to the use of the compressor circuit. The object of the present application is to provide a compressor circuit with a proper functioning also at relatively low input levels. The problem is solved in that an AC to DC voltage converter for generating a DC-control voltage based on the electric input signal or an AC signal derived therefrom, and a voltage controlled resistance for providing an output voltage swing Vopp controlled by the DC-control voltage, wherein the compressor circuit is energized by the electric input signal. An advantage thereof is that a compressor circuit facilitating a flexible adjustment of the maximum output level is provided. The invention may e.g. be used in portable and non-powered listening devices, e.g. headsets or active ear protection devices.
摘要翻译： 本申请涉及一种用于听音装置的压缩机电路，压缩机电路包括一对输入端子和一对输出端子，压缩机电路适于接收表示具有输入电压摆幅Vipp的音频信号的电输入信号 所述输入端子和用于提供所述输入信号的可能的压缩形式作为具有在所述输出端子处的输出电压摆幅Vopp的输出信号，所述压缩机电路包括。 该应用还涉及听音装置和压缩机电路的使用。 本申请的目的在于提供一种在相对低的输入电平下具有适当功能的压缩机电路。 解决的问题在于，用于基于电输入信号产生DC控制电压的AC至DC电压转换器或由其导出的AC信号，以及用于提供由DC控制控制的输出电压摆幅Vopp的电压控制电阻 电压，其中压缩机电路由电输入信号激励。 其优点是提供了一种便于灵活调整最大输出电平的压缩机电路。 本发明可以例如 用于便携式和非供电聆听装置，例如， 耳机或主动耳朵保护装置。
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公开(公告)号：USRE42093E1
公开(公告)日：2011-02-01
申请号：US12153624
申请日：2003-03-19
IPC分类号： H04M1/20
CPC分类号： H04R3/00 , H04B1/64 , H04M1/6016 , H04R5/033
摘要： An output reducing system for a telephone system, e.g., implemented in a headset, includes an input line and an output line, wherein the input line transmits an incoming signal to an output transducer and the output line transmits an outgoing signal from an input transducer, and a compressor system is provided in the input line for reducing the output signal level.
摘要翻译： 用于电话系统的输出降低系统，例如在头戴式耳机中实现的，包括输入线和输出线，其中输入线将输入信号传输到输出换能器，输出线传输来自输入换能器的输出信号， 并且在输入线路中设置压缩机系统以减小输出信号电平。
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