公开(公告)号：US08073161B2

公开(公告)日：2011-12-06

申请号：US12180552

申请日：2008-07-27

申请人： Chun-Lung Hung ,  De-An Zhang ,  Wen-Ming Chen ,  Kun Huang ,  Jie Liu ,  Shao-Lin Zhang

发明人： Chun-Lung Hung ,  De-An Zhang ,  Wen-Ming Chen ,  Kun Huang ,  Jie Liu ,  Shao-Lin Zhang

IPC分类号： H03F99/00

CPC分类号： H04S1/002 ,  H04S2400/09

摘要： An audio apparatus includes an input, a first resistor, a first capacitor, an amplifier, a second resistor, a second capacitor, and an output. The input is used for inputting audio signals. The first resistor and the amplifier are serially connected to the input; wherein the first resistor is connected to the inverting input of the amplifier and the non-inverting input of the amplifier is connected to ground. The first capacitor has one end connected to a node between the first resistor and the inverting input of the amplifier, the other end connected to ground. The second resistor has one end connected to a node between the first resistor and the inverting input of the amplifier, the other end connected to the output of the amplifier. The second capacitor is connected between the inverting input and the output of the amplifier. The output is connected to the output of the amplifier, for outputting the audio signals after processing.

摘要翻译： 音频装置包括输入端，第一电阻器，第一电容器，放大器，第二电阻器，第二电容器和输出端。 该输入用于输入音频信号。 第一个电阻和放大器串联连接到输入端; 其中第一电阻器连接到放大器的反相输入，并且放大器的非反相输入端连接到地。 第一电容器的一端连接到第一电阻器和放大器的反相输入端之间的节点，另一端连接到地。 第二电阻器的一端连接到第一电阻器和放大器的反相输入端之间的节点，另一端连接到放大器的输出端。 第二个电容连接在反相输入和放大器的输出端之间。 输出端连接到放大器的输出端，用于在处理后输出音频信号。

公开(公告)号：US08077875B2

公开(公告)日：2011-12-13

申请号：US12483227

申请日：2009-06-11

申请人： Chun-Lung Hung ,  Kun Huang ,  Shao-Lin Zhang ,  De-An Zhang

发明人： Chun-Lung Hung ,  Kun Huang ,  Shao-Lin Zhang ,  De-An Zhang

IPC分类号： H04R5/033

CPC分类号： H04R3/00 ,  H04R1/1041 ,  H04R2420/05

摘要： An audio device includes a jack, a switch, an amplifier, an internal sound producer, and a determining circuit. The jack establishes a connection with an external sound producer. The switch is in an opened state when the connection is established, and in a closed state when the connection is open. The amplifier amplifies audio signals to amplified audio signals and sends the amplified audio signals to the switch. The determining circuit receives the amplified audio signals from the switch, and generates a high voltage to control the amplifier not to output the amplified audio signals to the internal sound producer when the switch is in the closed state, and generates a low voltage to control the amplifier to output the amplified audio signals to the internal sound producer. The determined circuit further filters out the amplified audio signals when the switch is in the opened state.

摘要翻译： 音频装置包括插孔，开关，放大器，内部声音产生器和确定电路。 千斤顶与外部声音产生器建立连接。 当连接建立时，交换机处于打开状态，连接打开时处于关闭状态。 放大器将音频信号放大到放大的音频信号，并将放大的音频信号发送到交换机。 确定电路从开关接收放大的音频信号，并且当开关处于闭合状态时产生高电压以控制放大器不将放大的音频信号输出到内部声音产生器，并且产生低电压以控制 放大器将放大的音频信号输出到内部声音产生器。 当开关处于打开状态时，所确定的电路进一步滤出放大的音频信号。

公开(公告)号：US07663433B2

公开(公告)日：2010-02-16

申请号：US12187402

申请日：2008-08-07

申请人： Chun-Lung Hung ,  Wen-Ming Chen ,  Jie Liu ,  De-An Zhang ,  Wang-Chang Duan ,  Tao Wang

发明人： Chun-Lung Hung ,  Wen-Ming Chen ,  Jie Liu ,  De-An Zhang ,  Wang-Chang Duan ,  Tao Wang

IPC分类号： H03F1/14

CPC分类号： H03F3/183 ,  H03F1/305 ,  H03F2200/03

摘要： An audio amplifier is provided. The audio amplifier includes an amplifier, a biasing circuit, and a time-delay circuit. The amplifier circuit is for amplifying audio signals. The biasing circuit is for providing a bias voltage to the amplifier circuit to actuate the amplifier circuit. The time-delay circuit is for receiving a pulse signal and delaying the bias voltage to avoid a sudden actuation of the amplifier circuit based on the pulse signal. The time-delay circuit comprises a first input for receiving the pulse signal, a first resistor coupled to the first input, a first output coupled to the biasing circuit, a first BJT whose base, emitter, collector are respectively coupled to the first resistor, ground, and the first output.

摘要翻译： 提供音频放大器。 音频放大器包括放大器，偏置电路和时间延迟电路。 放大器电路用于放大音频信号。 偏置电路用于向放大器电路提供偏置电压来致动放大器电路。 时间延迟电路用于接收脉冲信号并延迟偏置电压，以避免基于脉冲信号的放大器电路的突然致动。 时延电路包括用于接收脉冲信号的第一输入端，耦合到第一输入端的第一电阻器，耦合到偏置电路的第一输出端，​​其基极，发射极，集电极分别耦合到第一电阻器的第一BJT， 地面和第一输出。