Analog-to-digital converter, sound processing device, and method for analog-to-digital conversion
    1.
    发明授权
    Analog-to-digital converter, sound processing device, and method for analog-to-digital conversion 有权
    模拟 - 数字转换器,声音处理设备和模数转换方法

    公开(公告)号:US08502717B2

    公开(公告)日:2013-08-06

    申请号:US13017511

    申请日:2011-01-31

    IPC分类号: H03M3/00

    CPC分类号: H03M3/466 H03M3/43 H04R3/005

    摘要: The invention provides a sound processing device. In one embodiment, the sound processing device comprises a first microphone, a first analog-to-digital converter, a second microphone, and a second analog-to-digital converter. The first microphone detects a first sound pressure to generate a first analog audio signal. The first analog-to-digital converter converts the first analog audio signal to a first digital audio signal. The second microphone detects a second sound pressure to generate a second analog audio signal. The second analog-to-digital converter converts the second analog audio signal to a second digital audio signal, encodes a third digital audio signal according to the second digital audio signal, receives the first digital audio signal and a clock signal, outputs data bits of the third digital audio signal when the clock signal oscillates to a logic low level, and outputs data bits of the first digital audio signal when the clock signal oscillates to a logic high level.

    摘要翻译: 本发明提供一种声音处理装置。 在一个实施例中,声音处理装置包括第一麦克风,第一模数转换器,第二麦克风和第二模数转换器。 第一麦克风检测第一声压以产生第一模拟音频信号。 第一模数转换器将第一模拟音频信号转换成第一数字音频信号。 第二麦克风检测第二声压以产生第二模拟音频信号。 第二模数转换器将第二模拟音频信号转换为第二数字音频信号,根据第二数字音频信号对第三数字音频信号进行编码,接收第一数字音频信号和时钟信号,输出数据位 当时钟信号振荡到逻辑低电平时,第三数字音频信号,并且当时钟信号振荡到逻辑高电平时,输出第一数字音频信号的数据位。

    Analog-to-Digital Converter, Sound Processing Device, and Method for Analog-to-Digital Conversion
    2.
    发明申请
    Analog-to-Digital Converter, Sound Processing Device, and Method for Analog-to-Digital Conversion 有权
    模拟数字转换器,声音处理设备和模数转换方法

    公开(公告)号:US20120128181A1

    公开(公告)日:2012-05-24

    申请号:US13017511

    申请日:2011-01-31

    IPC分类号: H03F99/00

    CPC分类号: H03M3/466 H03M3/43 H04R3/005

    摘要: The invention provides a sound processing device. In one embodiment, the sound processing device comprises a first microphone, a first analog-to-digital converter, a second microphone, and a second analog-to-digital converter. The first microphone detects a first sound pressure to generate a first analog audio signal. The first analog-to-digital converter converts the first analog audio signal to a first digital audio signal. The second microphone detects a second sound pressure to generate a second analog audio signal. The second analog-to-digital converter converts the second analog audio signal to a second digital audio signal, encodes a third digital audio signal according to the second digital audio signal, receives the first digital audio signal and a clock signal, outputs data bits of the third digital audio signal when the clock signal oscillates to a logic low level, and outputs data bits of the first digital audio signal when the clock signal oscillates to a logic high level.

    摘要翻译: 本发明提供一种声音处理装置。 在一个实施例中,声音处理装置包括第一麦克风,第一模数转换器,第二麦克风和第二模数转换器。 第一麦克风检测第一声压以产生第一模拟音频信号。 第一模数转换器将第一模拟音频信号转换成第一数字音频信号。 第二麦克风检测第二声压以产生第二模拟音频信号。 第二模数转换器将第二模拟音频信号转换为第二数字音频信号,根据第二数字音频信号对第三数字音频信号进行编码,接收第一数字音频信号和时钟信号,输出数据位 当时钟信号振荡到逻辑低电平时,第三数字音频信号,并且当时钟信号振荡到逻辑高电平时,输出第一数字音频信号的数据位。

    Analog-to-digital converter and analog-to-digital conversion method
    3.
    发明授权
    Analog-to-digital converter and analog-to-digital conversion method 有权
    模数转换器和模数转换方式

    公开(公告)号:US08670572B2

    公开(公告)日:2014-03-11

    申请号:US12950021

    申请日:2010-11-19

    IPC分类号: A61F11/06 G06F17/00

    摘要: The invention provides an analog-to-digital converter. In one embodiment, the analog-to-digital converter receives a first audio signal from a microphone, and comprises a coding selection module, a pre-amplifier, a 1-bit ΔΣ modulator, and a signal coding module. The coding selection module receives a mode signal and a channel selection signal, and generates a control signal according to the mode signal and the channel selection signal. The pre-amplifier amplifies the first audio signal to obtain a second audio signal. The 1-bit ΔΣ modulator converts the second audio signal from analog to digital to obtain a third audio signal. The signal coding module encodes a fourth audio signal according to the third audio signal as an output signal of the analog-to-digital converter when the control signal indicates that the mode signal selects an encoding mode, and forwards the third audio signal as the output signal of the analog-to-digital converter when the control signal indicates that mode signal does not select the encoding mode.

    摘要翻译: 本发明提供了一种模拟 - 数字转换器。 在一个实施例中,模数转换器从麦克风接收第一音频信号,并且包括编码选择模块,前置放大器,1位DeltaSigma调制器和信号编码模块。 编码选择模块接收模式信号和频道选择信号,并根据模式信号和频道选择信号产生控制信号。 前置放大器放大第一音频信号以获得第二音频信号。 1位DeltaSigma调制器将第二音频信号从模拟转换为数字,以获得第三音频信号。 当控制信号指示模式信号选择编码模式时,信号编码模块将根据第三音频信号的第四音频信号编码为模数转换器的输出信号,并将第三音频信号作为输出 当控制信号指示模式信号不选择编码模式时,模数转换器的信号。

    Analog-to-Digital Converter and Analog-to-Digital Conversion Method
    4.
    发明申请
    Analog-to-Digital Converter and Analog-to-Digital Conversion Method 有权
    模数转换器和模数转换方法

    公开(公告)号:US20120128180A1

    公开(公告)日:2012-05-24

    申请号:US12950021

    申请日:2010-11-19

    IPC分类号: H03F99/00

    摘要: The invention provides an analog-to-digital converter. In one embodiment, the analog-to-digital converter receives a first audio signal from a microphone, and comprises a coding selection module, a pre-amplifier, a 1-bit ΔΣ modulator, and a signal coding module. The coding selection module receives a mode signal and a channel selection signal, and generates a control signal according to the mode signal and the channel selection signal. The pre-amplifier amplifies the first audio signal to obtain a second audio signal. The 1-bit ΔΣ modulator converts the second audio signal from analog to digital to obtain a third audio signal. The signal coding module encodes a fourth audio signal according to the third audio signal as an output signal of the analog-to-digital converter when the control signal indicates that the mode signal selects an encoding mode, and forwards the third audio signal as the output signal of the analog-to-digital converter when the control signal indicates that mode signal does not select the encoding mode.

    摘要翻译: 本发明提供了一种模拟 - 数字转换器。 在一个实施例中,模数转换器从麦克风接收第一音频信号,并且包括编码选择模块,前置放大器,1位&Dgr& 调制器和信号编码模块。 编码选择模块接收模式信号和频道选择信号,并根据模式信号和频道选择信号产生控制信号。 前置放大器放大第一音频信号以获得第二音频信号。 1位&Dgr&& 调制器将第二音频信号从模拟转换成数字以获得第三音频信号。 当控制信号指示模式信号选择编码模式时,信号编码模块将根据第三音频信号的第四音频信号编码为模数转换器的输出信号,并将第三音频信号作为输出 当控制信号指示模式信号不选择编码模式时,模数转换器的信号。

    MICROPHONE CIRCUIT AND CHARGE AMPLIFIER THEREOF
    5.
    发明申请
    MICROPHONE CIRCUIT AND CHARGE AMPLIFIER THEREOF 审中-公开
    麦克风电路及其充电放大器

    公开(公告)号:US20090086992A1

    公开(公告)日:2009-04-02

    申请号:US11862301

    申请日:2007-09-27

    IPC分类号: H04R3/00

    CPC分类号: H04R3/00 H03F3/187 H03F3/70

    摘要: The invention provides a microphone circuit. In one embodiment, the microphone circuit comprises a microphone, a self-biased amplifier with a finite gain, and a feedback capacitor. The microphone coupled between a ground and a first node generates a first voltage at the first node according to sound pressure. The self-biased amplifier has a positive input terminal coupled to the ground and a negative input terminal coupled to the first node and amplifies the first voltage according to the finite gain to generate a second voltage at a second node. The feedback capacitor coupled between the first node and the second node feeds back the second voltage to the first node. The second voltage is then output to a following module subsequent to the microphone circuit.

    摘要翻译: 本发明提供一种麦克风电路。 在一个实施例中,麦克风电路包括麦克风,具有有限增益的自偏置放大器和反馈电容器。 耦合在地和第一节点之间的麦克风根据声压产生第一节点处的第一电压。 自偏置放大器具有耦合到地的正输入端和耦合到第一节点的负输入端,并且根据有限增益放大第一电压,以在第二节点处产生第二电压。 耦合在第一节点和第二节点之间的反馈电容器将第二电压反馈到第一节点。 然后在麦克风电路之后将第二电压输出到随后的模块。