Microphone system
    1.
    发明授权

    公开(公告)号:US11323810B2

    公开(公告)日:2022-05-03

    申请号:US17091359

    申请日:2020-11-06

    Abstract: A microphone system, comprises a first transducer, for generating a first acoustic signal, and a second transducer, for generating a second acoustic signal. A high-pass filter receives the first signal and generates a first filtered signal, and a low-pass filter receives the second signal and generates a second filtered signal. An adder forms an output signal of the microphone system as a sum of the first filtered signal and the second filtered signal.

    Pinna proximity detection
    4.
    发明授权

    公开(公告)号:US10923097B2

    公开(公告)日:2021-02-16

    申请号:US16539092

    申请日:2019-08-13

    Abstract: An integrated circuit for implementing at least a portion of a personal audio device may include an output for providing an output signal to a transducer, wherein the output signal includes a pilot signal, a microphone input for receiving a microphone signal from a microphone indicative of an output of the transducer, and a processing circuit. The processing circuit may be configured to implement a pilot signal control to apply an adjustment to the pilot signal as necessary to maintain the pilot signal at a substantially constant magnitude regardless of proximity of the transducer to a pinna and implement a proximity determination block configured to determine proximity of the transducer to the pinna based on the adjustment.

    Microphone system
    5.
    发明授权

    公开(公告)号:US11627414B2

    公开(公告)日:2023-04-11

    申请号:US17710152

    申请日:2022-03-31

    Abstract: A microphone system, comprises a first transducer, for generating a first acoustic signal, and a second transducer, for generating a second acoustic signal. A high-pass filter receives the first signal and generates a first filtered signal, and a low-pass filter receives the second signal and generates a second filtered signal. An adder forms an output signal of the microphone system as a sum of the first filtered signal and the second filtered signal.

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