公开(公告)号：US20120130517A1

公开(公告)日：2012-05-24

申请号：US13017446

申请日：2011-01-31

申请人： Jui-Te Chiu ,  Ching-Tzung Lin

发明人： Jui-Te Chiu ,  Ching-Tzung Lin

IPC分类号： G06F17/00

CPC分类号： H04R3/00 ,  H03M3/43 ,  H03M3/466 ,  H04R2410/00

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 from analog to digital to obtain 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 receives the first digital audio signal and a clock signal, inverts the phase of the first digital audio signal to generate a third digital audio signal, converts the second analog audio signal from analog to digital to obtain a second digital audio signal, encodes a fourth digital audio signal according to the second digital audio 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 fourth 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从模拟转换成数字以获得第一数字音频信号。 第二麦克风检测第二声压以产生第二模拟音频信号。 第二模数转换器接收第一数字音频信号和时钟信号，反相第一数字音频信号的相位以产生第三数字音频信号，将第二模拟音频信号从模拟转换成数字，以获得第二数字音频信号 数字音频信号根据第二数字音频信号对第四数字音频信号进行编码，当时钟信号振荡到逻辑低电平时，输出第三数字音频信号的数据位，并且当第四数字音频信号的数据位 时钟信号振荡到逻辑高电平。

公开(公告)号：US20100177913A1

公开(公告)日：2010-07-15

申请号：US12351997

申请日：2009-01-12

申请人： Jui-Te Chiu ,  Li-Te Wu

发明人： Jui-Te Chiu ,  Li-Te Wu

IPC分类号： H04R3/00

CPC分类号： H04R1/04 ,  H04R2201/003

摘要： A microphone preamplifier circuit is provided in a system on chip. An amplifier comprises a first input end, a second input end, and an output end. A bias voltage is provided by a bias voltage source. A first sensor is coupled to the first input end and the bias voltage source for sensing a first physical parameter and a second physical parameter. A second sensor is coupled to the second input end and the bias voltage source for sensing the first physical parameter, wherein the second sensor is insensitive to the second physical parameter. The output end of the amplifier outputs a difference of the first and second input ends whereby noises and interferences are reduced.

摘要翻译： 麦克风前置放大器电路设置在片上系统中。 放大器包括第一输入端，第二输入端和输出端。 偏置电压由偏置电压源提供。 第一传感器耦合到第一输入端和偏置电压源，用于感测第一物理参数和第二物理参数。 第二传感器耦合到第二输入端和偏置电压源，用于感测第一物理参数，其中第二传感器对第二物理参数不敏感。 放大器的输出端输出第一和第二输入端的差值，从而降低噪声和干扰。

公开(公告)号：US20100172517A1

公开(公告)日：2010-07-08

申请号：US12350388

申请日：2009-01-08

申请人： Li-Te Wu ,  Jui-Te Chiu

发明人： Li-Te Wu ,  Jui-Te Chiu

IPC分类号： H04R3/00 ,  G10L15/00

CPC分类号： H04R3/007 ,  G10L2021/02165

摘要： A microphone preamplifier circuit is provided. An amplifier comprises a first input end, a second input end, and an output end. A bias voltage is provided by a bias voltage source. A first sensor is coupled to the first input end and the bias voltage source for sensing a first physical parameter and a second physical parameter. A second sensor is coupled to the second input end and the bias voltage source for sensing the first physical parameter, wherein the second sensor is insensitive to the second physical parameter. The output end of the amplifier outputs a difference of the first and second input ends whereby noises and interferences are reduced.

摘要翻译： 提供麦克风前置放大器电路。 放大器包括第一输入端，第二输入端和输出端。 偏置电压由偏置电压源提供。 第一传感器耦合到第一输入端和偏置电压源，用于感测第一物理参数和第二物理参数。 第二传感器耦合到第二输入端和偏置电压源，用于感测第一物理参数，其中第二传感器对第二物理参数不敏感。 放大器的输出端输出第一和第二输入端的差值，从而降低噪声和干扰。

公开(公告)号：US20120128182A1

公开(公告)日：2012-05-24

申请号：US13017548

申请日：2011-01-31

申请人： Jui-Te Chiu ,  Ching-Tzung Lin

发明人： Jui-Te Chiu ,  Ching-Tzung Lin

IPC分类号： H03F99/00

CPC分类号： H04R3/00 ,  G10L19/04 ,  G10L19/18 ,  H03M3/43 ,  H04R2410/00

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 sensor, and receives a first channel selection signal and a clock signal, and comprises a toggle detection module, a first data processing module, a second data processing module, and a multiplexer. The toggle detection module detects whether the first channel selection signal is toggling between a logic low level and a logic high level to generate a control signal. The first data processing module processes the first channel selection signal to generate a second channel selection signal. The second data processing module converts the first audio signal from analog to digital to generate a second audio signal. If the control signal indicates that the first channel selection signal is toggling between the logic low level and the logic high level, the multiplexer outputs data bits of the second channel selection signal as an output signal of the analog-to-digital converter when the clock signal oscillates to the logic high level, and outputs data bits of the second audio signal as the output signal of the analog-to-digital converter when the clock signal oscillates to the logic low level.

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传感器接收第一音频信号，并接收第一信道选择信号和时钟信号，并且包括切换检测模块，第一数据处理模块，第二数据处理 模块和多路复用器。 触发检测模块检测第一信道选择信号是否在逻辑低电平和逻辑高电平之间切换以产生控制信号。 第一数据处理模块处理第一信道选择信号以产生第二信道选择信号。 第二数据处理模块将第一音频信号从模拟转换成数字以产生第二音频信号。 如果控制信号指示第一通道选择信号在逻辑低电平和逻辑高电平之间切换，则多路复用器输出第二通道选择信号的数据位作为模数转换器的输出信号，当时钟 当时钟信号振荡到逻辑低电平时，信号振荡到逻辑高电平，并输出第二音频信号的数据位作为模数转换器的输出信号。

公开(公告)号：US20100322440A1

公开(公告)日：2010-12-23

申请号：US12489695

申请日：2009-06-23

申请人： Jui-Te CHIU ,  Li-Te WU

发明人： Jui-Te CHIU ,  Li-Te WU

IPC分类号： H03F99/00 ,  H04R3/00

CPC分类号： H03F1/26 ,  H03F3/187 ,  H03F3/45475 ,  H03F2200/03 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45526 ,  H03F2203/45544

摘要： An audio processing circuit is provided, receiving a microphone signal from a microphone to output a differential signal. A preamplifier receives the microphone signal to output a first preamplified voltage and a second preamplified voltage. A gain stage receives the first preamplified voltage and the second preamplified voltage to output the differential signal comprising a first differential output and a second differential output. In the preamplifier, a first operational amplifier is provided. A first voltage controlled current source is controlled by the output end of the first operational amplifier to provide a first current. A first transistor has a gate coupled to a ground voltage supply, a source coupled to the first voltage controlled current source for receiving the first current, and a drain coupled to a voltage ground. Likewise, a second voltage controlled current source and a second transistor are presented symmetrically to render the differential output.

摘要翻译： 提供一种音频处理电路，从麦克风接收麦克风信号以输出差分信号。 前置放大器接收麦克风信号以输出第一预放大电压和第二预放大电压。 增益级接收第一预放大电压和第二预放大电压，以输出包括第一差分输出和第二差分输出的差分信号。 在前置放大器中，提供第一运算放大器。 第一电压控制电流源由第一运算放大器的输出端控制以提供第一电流。 第一晶体管具有耦合到接地电压源的栅极，耦合到用于接收第一电流的第一压控电流源的源极和耦合到电压接地的漏极。 同样地，对称地呈现第二压控电流源和第二晶体管，以产生差分输出。

公开(公告)号：US07341374B2

公开(公告)日：2008-03-11

申请号：US11163601

申请日：2005-10-25

申请人： Jui-Te Chiu

发明人： Jui-Te Chiu

IPC分类号： G01K15/00 ,  G01K7/00

CPC分类号： G01K15/00 ,  G01K7/01

摘要： A temperature measurement circuit has a current excitation circuit, a temperature calculation circuit, a calibration factor generator, and an analog-to-digital conversion circuit. The current excitation circuit supplies in sequence at least two currents to a thermal sensor. At least two output signals are correspondingly generated from the thermal sensor. In response to the at least two output signals, the temperature calculation circuit calculates an analog temperature signal representative of a temperature detected by the thermal sensor. The analog-to-digital conversion circuit converts the analog temperature signal into a digital signal based on a conversion reference level. The conversion reference level is shifted in accordance with a calibration value generated from the calibration factor generator.

摘要翻译： 温度测量电路具有电流激励电路，温度计算电路，校准因子发生器和模数转换电路。 当前的励磁电路依次向热传感器提供至少两个电流。 从热传感器相应地产生至少两个输出信号。 响应于至少两个输出信号，温度计算电路计算代表由热传感器检测到的温度的模拟温度信号。 模拟 - 数字转换电路基于转换参考电平将模拟温度信号转换成数字信号。 转换参考电平根据从校准因子发生器产生的校准值移位。

公开(公告)号：US08670853B2

公开(公告)日：2014-03-11

申请号：US13017446

申请日：2011-01-31

申请人： Jui-Te Chiu ,  Ching-Tzung Lin

发明人： Jui-Te Chiu ,  Ching-Tzung Lin

IPC分类号： G06F17/00 ,  H04H40/54

CPC分类号： H04R3/00 ,  H03M3/43 ,  H03M3/466 ,  H04R2410/00

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 from analog to digital to obtain 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 receives the first digital audio signal and a clock signal, inverts the phase of the first digital audio signal to generate a third digital audio signal, converts the second analog audio signal from analog to digital to obtain a second digital audio signal, encodes a fourth digital audio signal according to the second digital audio 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 fourth 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从模拟转换成数字以获得第一数字音频信号。 第二麦克风检测第二声压以产生第二模拟音频信号。 第二模数转换器接收第一数字音频信号和时钟信号，反相第一数字音频信号的相位以产生第三数字音频信号，将第二模拟音频信号从模拟转换成数字，以获得第二数字音频信号 数字音频信号根据第二数字音频信号对第四数字音频信号进行编码，当时钟信号振荡到逻辑低电平时，输出第三数字音频信号的数据位，并且当第四数字音频信号的数据位 时钟信号振荡到逻辑高电平。

公开(公告)号：US08670572B2

公开(公告)日：2014-03-11

申请号：US12950021

申请日：2010-11-19

申请人： Min-Yung Shih ,  Jui-Te Chiu ,  Yann-Ming Way ,  Ching-Tzung Lin ,  Kuo-Hsuan Chang

发明人： Min-Yung Shih ,  Jui-Te Chiu ,  Yann-Ming Way ,  Ching-Tzung Lin ,  Kuo-Hsuan Chang

IPC分类号： A61F11/06 ,  G06F17/00

CPC分类号： H04R3/00 ,  G10L19/04 ,  G10L19/18 ,  H03M3/43 ,  H04R2410/00

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。

公开(公告)号：US08154347B2

公开(公告)日：2012-04-10

申请号：US12489695

申请日：2009-06-23

申请人： Jui-Te Chiu ,  Li-Te Wu

发明人： Jui-Te Chiu ,  Li-Te Wu

IPC分类号： H03F3/04

CPC分类号： H03F1/26 ,  H03F3/187 ,  H03F3/45475 ,  H03F2200/03 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45526 ,  H03F2203/45544

摘要： An audio processing circuit is provided, receiving a microphone signal from a microphone to output a differential signal. A preamplifier receives the microphone signal to output a first preamplified voltage and a second preamplified voltage. A gain stage receives the first preamplified voltage and the second preamplified voltage to output the differential signal comprising a first differential output and a second differential output. In the preamplifier, a first operational amplifier is provided. A first voltage controlled current source is controlled by the output end of the first operational amplifier to provide a first current. A first transistor has a gate coupled to a ground voltage supply, a source coupled to the first voltage controlled current source for receiving the first current, and a drain coupled to a voltage ground. Likewise, a second voltage controlled current source and a second transistor are presented symmetrically to render the differential output.

摘要翻译： 提供一种音频处理电路，从麦克风接收麦克风信号以输出差分信号。 前置放大器接收麦克风信号以输出第一预放大电压和第二预放大电压。 增益级接收第一预放大电压和第二预放大电压，以输出包括第一差分输出和第二差分输出的差分信号。 在前置放大器中，提供第一运算放大器。 第一电压控制电流源由第一运算放大器的输出端控制以提供第一电流。 第一晶体管具有耦合到接地电压源的栅极，耦合到用于接收第一电流的第一压控电流源的源极和耦合到电压接地的漏极。 同样地，对称地呈现第二压控电流源和第二晶体管，以产生差分输出。

公开(公告)号：US07339430B2

公开(公告)日：2008-03-04

申请号：US11460242

申请日：2006-07-26

申请人： Jui-Te Chiu

发明人： Jui-Te Chiu

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45708 ,  H03F2203/45248 ,  H03F2203/45366 ,  H03F2203/45482

摘要： A rail-to-rail operational amplifier is provided with a high-side current adjusting circuit and a low-side current adjusting circuit. On a basis of a comparison between a first input voltage and a second input voltage, the high-side current adjusting circuit adjusts a high-side bias current. Under a condition that the first input voltage is smaller than the second input voltage, the high-side current adjusting circuit increases the high-side bias current when an absolute value of a difference between the first and the second voltages increases. On a basis of the comparison between the first and the second input voltages, the low-side current adjusting circuit adjusts a low-side bias current. Under a condition that the first input voltage is larger than the second input voltage, the low-side current adjusting circuit increases the low-side bias current when the absolute value of the difference between the first and the second voltages increases.

摘要翻译： 轨至轨运算放大器具有高边电流调节电路和低边电流调节电路。 基于第一输入电压和第二输入电压之间的比较，高侧电流调节电路调节高侧偏置电流。 在第一输入电压小于第二输入电压的条件下，当第一和第二电压之间的差的绝对值增加时，高侧电流调节电路增加高侧偏置电流。 基于第一和第二输入电压之间的比较，低侧电流调节电路调节低侧偏置电流。 在第一输入电压大于第二输入电压的条件下，当第一和第二电压之间的差的绝对值增加时，低侧电流调节电路增加低侧偏置电流。