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    • 3. 发明申请
    • Position detection of an actuator using a capacitance measurement
    • 使用电容测量执行器的位置检测
    • US20050031140A1
    • 2005-02-10
    • US10638243
    • 2003-08-07
    • Raymond Browning
    • Raymond Browning
    • H04R3/08H04R29/00H04R1/00H04R3/00
    • H04R29/003H04R3/08
    • Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.
    • 用于诸如音频再现系统,致动器装置,机电装置和电话装置的装置的控制系统。 该系统包括控制电路,其接收输入信号和表示受控设备的一部分的位置的信号。 控制电路向受控设备提供输出信号以影响受控设备的操作。 输出信号提供装置的控制以补偿以下中的一个或多个:电动机因数; 春季因素; 反电动势; 以及受控装置的驱动器中的线圈的阻抗。 指示位置的信号通过一个或多个位置指示器技术得到,例如红外LED和PIN二极管组合,受控设备的一部分相对于受控设备的另一部分的位置相关电容以及线圈的阻抗 受控装置。 控制电路可配置为控制正被控制的系统的跨导和/或转导。 公开了一种用于检测和测量音圈换能器的倾斜的技术,该技术包括在音圈换能器的一部分之间相对于音圈换能器的另一部分在音圈的移动范围内测量电容 操作。
    • 4. 发明申请
    • Position detection of an actuator using impedance
    • 使用阻抗执行器的位置检测
    • US20050031139A1
    • 2005-02-10
    • US10638232
    • 2003-08-07
    • Raymond BrowningLawrence LeskeDavid Medin
    • Raymond BrowningLawrence LeskeDavid Medin
    • H04R3/00H04R29/00H04R1/00
    • H04R3/002H04R3/02H04R3/08
    • Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.
    • 诸如音频再现系统,致动器装置,机电装置和电话装置的装置的控制系统。 该系统包括控制电路,其接收输入信号和表示受控设备的一部分的位置的信号。 控制电路向受控设备提供输出信号以影响受控设备的操作。 输出信号提供装置的控制以补偿以下中的一个或多个:电动机因数; 春季因素; 反电动势; 以及受控装置的驱动器中的线圈的阻抗。 指示位置的信号通过一个或多个位置指示器技术得到,例如红外LED和PIN二极管组合,受控设备的一部分相对于受控设备的另一部分的位置相关电容以及线圈的阻抗 受控装置。 控制电路可配置为控制正被控制的系统的跨导和/或转导。 公开了一种用于检测和测量音圈换能器的倾斜的技术,该技术包括在音圈换能器的一部分之间相对于音圈换能器的另一部分在音圈的移动范围内测量电容 操作。
    • 5. 发明授权
    • Mixed-mode (current-voltage) audio amplifier
    • 混合模式(电流 - 电压)音频放大器
    • US07053705B2
    • 2006-05-30
    • US10744663
    • 2003-12-23
    • John J. HenchJoseph Comparetto
    • John J. HenchJoseph Comparetto
    • H03F1/36
    • H03F1/08H03F1/34H03F3/187H03F2200/387
    • A method and system for providing a mixed-mode (current- and voltage-source) audio amplifier is disclosed. The mixed-mode amplifier includes a voltage sensing feedback path including a first network comprising at least one circuit; and a current sensing feedback path including a second network comprising at least one circuit. According to the method and system disclosed herein, the first and second networks vary an output impedance or transconductance of the amplifier as a function of frequency of the input voltage signal, such that at a first frequency range, the amplifier operates substantially as a current amplifier, and at a second frequency range, the amplifier operates substantially as a voltage amplifier, thereby inheriting distortion reduction of the current amplifier and stability of the voltage amplifier.
    • 公开了一种用于提供混合模式(电流和电压源)音频放大器的方法和系统。 混合模式放大器包括电压感测反馈路径,其包括包括至少一个电路的第一网络; 以及包括包括至少一个电路的第二网络的电流感测反馈路径。 根据本文公开的方法和系统,第一和第二网络根据输入电压信号的频率改变放大器的输出阻抗或跨导,使得在第一频率范围,放大器基本上作为电流放大器 ,并且在第二频率范围内,放大器基本上作为电压放大器工作,从而继承了电流放大器的失真减小和电压放大器的稳定性。
    • 6. 发明申请
    • Audio reproduction system
    • 音频再现系统
    • US20060104451A1
    • 2006-05-18
    • US10638201
    • 2003-08-07
    • Raymond BrowningGeorge AnwarShahar Ben-MenahemAli JabbariLawrence LeskeDavid MedinHakim Mesiwala
    • Raymond BrowningGeorge AnwarShahar Ben-MenahemAli JabbariLawrence LeskeDavid MedinHakim Mesiwala
    • H04R29/00
    • H04R29/003
    • Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry that receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.
    • 诸如音频再现系统,致动器装置,机电装置和电话装置的装置的控制系统。 该系统包括控制电路,其接收输入信号和表示受控设备的一部分的位置的信号。 控制电路向受控设备提供输出信号以影响受控设备的操作。 输出信号提供装置的控制以补偿以下中的一个或多个:电动机因数; 春季因素; 反电动势; 以及受控装置的驱动器中的线圈的阻抗。 指示位置的信号通过一个或多个位置指示器技术得到,例如红外LED和PIN二极管组合,受控设备的一部分相对于受控设备的另一部分的位置相关电容以及线圈的阻抗 受控装置。 控制电路可配置为控制正被控制的系统的跨导和/或转导。 公开了一种用于检测和测量音圈换能器的倾斜的技术,该技术包括在音圈换能器的一部分之间相对于音圈换能器的另一部分在音圈的移动范围内测量电容 操作。
    • 7. 发明申请
    • Process for position indication
    • 位置指示过程
    • US20050031133A1
    • 2005-02-10
    • US10638197
    • 2003-08-07
    • Raymond BrowningGeorge AnwarShahar Ben-MenahemAli JabbariLawrence LeskeDavid MedinHakim Mesiwala
    • Raymond BrowningGeorge AnwarShahar Ben-MenahemAli JabbariLawrence LeskeDavid MedinHakim Mesiwala
    • H04R3/00H04R29/00
    • H04R29/003
    • Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.
    • 诸如音频再现系统,致动器装置,机电装置和电话装置的装置的控制系统。 该系统包括控制电路,其接收输入信号和表示受控设备的一部分的位置的信号。 控制电路向受控设备提供输出信号以影响受控设备的操作。 输出信号提供装置的控制以补偿以下中的一个或多个:电动机因数; 春季因素; 反电动势; 以及受控装置的驱动器中的线圈的阻抗。 指示位置的信号通过一个或多个位置指示器技术得到,例如红外LED和PIN二极管组合,受控设备的一部分相对于受控设备的另一部分的位置相关电容以及线圈的阻抗 受控装置。 控制电路可配置为控制正被控制的系统的跨导和/或转导。 公开了一种用于检测和测量音圈换能器的倾斜的技术,该技术包括在音圈换能器的一部分之间相对于音圈换能器的另一部分在音圈的移动范围内测量电容 操作。
    • 9. 发明申请
    • Method of measuring a cant of an actuator
    • 测量执行器倾斜度的方法
    • US20050031138A1
    • 2005-02-10
    • US10638200
    • 2003-08-07
    • Raymond BrowningShahar Ben-MenahemLawrence LeskeDavid Medin
    • Raymond BrowningShahar Ben-MenahemLawrence LeskeDavid Medin
    • H04R3/08H04R29/00H04R1/00H04R3/00
    • H04R29/003H04R3/08
    • Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.
    • 诸如音频再现系统,致动器装置,机电装置和电话装置的装置的控制系统。 该系统包括控制电路,其接收输入信号和表示受控设备的一部分的位置的信号。 控制电路向受控设备提供输出信号以影响受控设备的操作。 输出信号提供装置的控制以补偿以下中的一个或多个:电动机因数; 春季因素; 反电动势; 以及受控装置的驱动器中的线圈的阻抗。 指示位置的信号通过一个或多个位置指示器技术得到,例如红外LED和PIN二极管组合,受控设备的一部分相对于受控设备的另一部分的位置相关电容以及线圈的阻抗 受控装置。 控制电路可配置为控制正被控制的系统的跨导和/或转导。 公开了一种用于检测和测量音圈换能器的倾斜的技术,该技术包括在音圈换能器的一部分之间相对于音圈换能器的另一部分在音圈的移动范围内测量电容 操作。