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    • 1. 发明申请
    • Microphone Assembly with Integrated Self-Test Circuitry
    • 具有集成自检电路的麦克风组件
    • US20110110536A1
    • 2011-05-12
    • US12935636
    • 2009-04-08
    • Per F. HovestenJens Kristian PoulsenGino Rocca
    • Per F. HovestenJens Kristian PoulsenGino Rocca
    • H04R3/00
    • H04R29/004H04R19/005H04R19/016H04R19/04
    • The present invention relates to a condenser microphone assembly comprising an electro-acoustic transducer element comprising a diaphragm and a back plate, signal processing circuitry operatively connected to the transducer element so as to process signals generated by the transducer element, and a mode-setting circuitry for selectively setting the condenser microphone assembly in a test mode or an operational mode. The electro-acoustic sensitivity of the condenser microphone assembly, when operated in the test mode, is at least 40 dB lower than the corresponding electro-acoustic sensitivity of the assembly when operated in the operational mode. The present invention further relates to a method for determining a performance parameter of a signal processing circuitry mounted inside a housing of an assembled condenser microphone assembly.
    • 本发明涉及一种电容传声器组件,其包括电声换能器元件,其包括隔膜和背板,操作地连接到换能器元件的信号处理电路,以便处理由换能器元件产生的信号,以及模式设置电路 用于选择性地将电容式麦克风组件设置在测试模式或操作模式中。 当在测试模式下操作时,电容式麦克风组件的电声灵敏度比操作模式下组件的电声灵敏度低至少40dB。 本发明还涉及一种用于确定安装在组装的电容式麦克风组件的壳体内部的信号处理电路的性能参数的方法。
    • 2. 发明授权
    • Microphone assembly with integrated self-test circuitry
    • 带集成自测电路的麦克风组合
    • US08675895B2
    • 2014-03-18
    • US12935636
    • 2009-04-08
    • Per Flemming HøvestenJens Kristian PoulsenGino Rocca
    • Per Flemming HøvestenJens Kristian PoulsenGino Rocca
    • H04R3/00
    • H04R29/004H04R19/005H04R19/016H04R19/04
    • The present invention relates to a condenser microphone assembly comprising an electro-acoustic transducer element comprising a diaphragm and a back plate, signal processing circuitry operatively connected to the transducer element so as to process signals generated by the transducer element, and a mode-setting circuitry for selectively setting the condenser microphone assembly in a test mode or an operational mode. The electro-acoustic sensitivity of the condenser microphone assembly, when operated in the test mode, is at least 40 dB lower than the corresponding electro-acoustic sensitivity of the assembly when operated in the operational mode. The present invention further relates to a method for determining a performance parameter of a signal processing circuitry mounted inside a housing of an assembled condenser microphone assembly.
    • 本发明涉及一种电容传声器组件,其包括电声换能器元件,其包括隔膜和背板,操作地连接到换能器元件的信号处理电路,以便处理由换能器元件产生的信号,以及模式设置电路 用于选择性地将电容式麦克风组件设置在测试模式或操作模式中。 当在测试模式下操作时,电容式麦克风组件的电声灵敏度比操作模式下组件的电声灵敏度低至少40dB。 本发明还涉及一种用于确定安装在组装的电容式麦克风组件的壳体内部的信号处理电路的性能参数的方法。