公开(公告)号：US09167340B2

公开(公告)日：2015-10-20

申请号：US13651916

申请日：2012-10-15

申请人： Direct Sound Headphones, LLC

发明人： Brian Anthony Rois ,  Stephen John Rois ,  Johnny Joseph Gresko

IPC分类号： H04R1/10 ,  H03G11/04 ,  H04R3/00

CPC分类号： H04R1/1091 ,  H03G11/04 ,  H04R1/1008 ,  H04R3/007 ,  H04R2430/01

摘要： Exemplary embodiments or implementations are disclosed of methods, apparatus, and systems for a volume limiter circuit. A rectifier sub-circuit is configured to rectify at least a portion of an audio signal received from an audio source. A junction field effect transistor (JFET) has a channel connected in series between the audio source and a speaker. A feedback sub-circuit is configured to provide a gate signal at a gate of the JFET and to modulate a control signal in accordance with the audio signal crossing the JFET channel. The feedback sub-circuit is connected with the rectifier sub-circuit so as to extend a range of variable resistance of the JFET channel. The limiter circuit provides functionality that changes in response to varying audio voltages.

摘要翻译： 公开了用于体积限制器电路的方法，装置和系统的示例性实施例。 整流器子电路被配置为对从音频源接收的音频信号的至少一部分进行整流。 结型场效应晶体管（JFET）具有串联连接在音频源和扬声器之间的通道。 反馈子电路被配置为在JFET的栅极处提供栅极信号，并且根据穿过JFET通道的音频信号来调制控制信号。 反馈子电路与整流器子电路连接，以扩展JFET通道的可变电阻范围。 限幅器电路提供响应于不同音频电压而改变的功能。

公开(公告)号：US20140105414A1

公开(公告)日：2014-04-17

申请号：US13651916

申请日：2012-10-15

申请人： DIRECT SOUND HEADPHONES, LLC

发明人： Brian Anthony Rois ,  Stephen John Rois ,  Johnny Joseph Gresko

IPC分类号： H03G3/20 ,  H04R1/10

CPC分类号： H04R1/1091 ,  H03G11/04 ,  H04R1/1008 ,  H04R3/007 ,  H04R2430/01

摘要： Exemplary embodiments or implementations are disclosed of methods, apparatus, and systems for a volume limiter circuit. A rectifier sub-circuit is configured to rectify at least a portion of an audio signal received from an audio source. A junction field effect transistor (JFET) has a channel connected in series between the audio source and a speaker. A feedback sub-circuit is configured to provide a gate signal at a gate of the JFET and to modulate a control signal in accordance with the audio signal crossing the JFET channel. The feedback sub-circuit is connected with the rectifier sub-circuit so as to extend a range of variable resistance of the JFET channel. The limiter circuit provides functionality that changes in response to varying audio voltages.

摘要翻译： 公开了用于体积限制器电路的方法，装置和系统的示例性实施例。 整流器子电路被配置为对从音频源接收的音频信号的至少一部分进行整流。 结型场效应晶体管（JFET）具有串联连接在音频源和扬声器之间的通道。 反馈子电路被配置为在JFET的栅极处提供栅极信号，并且根据穿过JFET通道的音频信号来调制控制信号。 反馈子电路与整流器子电路连接，以扩展JFET通道的可变电阻范围。 限幅器电路提供响应于不同音频电压而改变的功能。