耳機離耳偵測
    42.
    发明专利
    耳機離耳偵測 审中-公开
    耳机离耳侦测

    公开(公告)号:TW201820313A

    公开(公告)日:2018-06-01

    申请号:TW106136587

    申请日:2017-10-24

    Abstract: 揭露了一種用於耳機離耳偵測的信號處理器。信號處理器包括音訊輸出,用於向耳罩中的耳機揚聲器傳輸音訊信號。信號處理器還包括反饋(FB)麥克風輸入,用於接收來自耳罩中的FB麥克風的FB信號。信號處理器還包括離耳偵測(OED)信號處理器,用於判定FB信號在OED訊框上的音訊頻率響應作為接收到的頻率響應。OED處理器亦判定音訊信號的音訊頻率響應乘以耳機揚聲器和FB麥克風之間的離耳轉移函數作為理想離耳響應。產生將接收到的頻率響應與理想離耳頻率響應進行比較的差異量度。使用差異量度來偵測耳罩何時從耳朵脫離。

    Abstract in simplified Chinese: 揭露了一种用于耳机离耳侦测的信号处理器。信号处理器包括音频输出,用于向耳罩中的耳机扬声器传输音频信号。信号处理器还包括反馈(FB)麦克风输入,用于接收来自耳罩中的FB麦克风的FB信号。信号处理器还包括离耳侦测(OED)信号处理器,用于判定FB信号在OED讯框上的音频频率响应作为接收到的频率响应。OED处理器亦判定音频信号的音频频率响应乘以耳机扬声器和FB麦克风之间的离耳转移函数作为理想离耳响应。产生将接收到的频率响应与理想离耳频率响应进行比较的差异量度。使用差异量度来侦测耳罩何时从耳朵脱离。

    ACOUSTIC PROCESSOR HAVING LOW LATENCY
    46.
    发明公开
    ACOUSTIC PROCESSOR HAVING LOW LATENCY 审中-公开
    声音处理器具有低延迟

    公开(公告)号:EP3201911A1

    公开(公告)日:2017-08-09

    申请号:EP15782144.8

    申请日:2015-09-30

    CPC classification number: G10K11/17855 G10K11/17881 G10K2210/3051

    Abstract: An audio system having low latency includes a digital audio processor as well as sensor inputs coupled to the processor. The sensor inputs may be microphone inputs. The audio processor operates at the same frequency as the sensor inputs, which is typically much higher than an audio signal provided to the audio processor. In some aspects the audio processor operates as a noise cancellation processor and does not include an audio input.

    Abstract translation: 具有低等待时间的音频系统包括数字音频处理器以及耦合到处理器的传感器输入。 传感器输入可以是麦克风输入。 音频处理器的工作频率与传感器输入相同,通常远高于提供给音频处理器的音频信号。 在一些方面,音频处理器作为噪声消除处理器工作,并且不包括音频输入。

    RING NETWORK OF BLUETOOTH SPEAKERS
    47.
    发明公开

    公开(公告)号:EP3661234A1

    公开(公告)日:2020-06-03

    申请号:EP20150519.5

    申请日:2015-11-23

    Abstract: A method for forming a complete ring network of a plurality of Bluetooth speakers, the method including populating a configurable speaker register of each of the plurality of Bluetooth speakers with an address of an upstream Bluetooth speaker that is in the plurality of Bluetooth speakers, populating the configurable speaker register of each of the plurality of Bluetooth speakers with an address of a downstream Bluetooth speaker that is in the plurality of Bluetooth speakers, and coupling an audio source to one Bluetooth speaker of the plurality of Bluetooth speakers.

    RING NETWORK OF BLUETOOTH SPEAKERS
    48.
    发明公开
    RING NETWORK OF BLUETOOTH SPEAKERS 审中-公开
    蓝牙扬声器环网

    公开(公告)号:EP3222063A1

    公开(公告)日:2017-09-27

    申请号:EP15805697.8

    申请日:2015-11-23

    Abstract: A method for forming a complete ring network of a plurality of Bluetooth® speakers, the method including populating a configurable speaker register of each of the plurality of Bluetooth® speakers with an address of an upstream Bluetooth® speaker that is in the plurality of Bluetooth® speakers, populating the configurable speaker register of each of the plurality of Bluetooth® speakers with an address of a downstream Bluetooth® speaker that is in the plurality of Bluetooth® speakers, and coupling an audio source to one Bluetooth® speaker of the plurality of Bluetooth® speakers.

    Abstract translation: 一种用于形成多个蓝牙扬声器的完整环形网络的方法,所述方法包括:将所述多个蓝牙扬声器中的每一个的可配置扬声器寄存器填充到所述多个蓝牙扬声器中的上游蓝牙扬声器的地址 扬声器,利用多个蓝牙扬声器中的下游蓝牙扬声器的地址填充多个蓝牙扬声器中的每一个的可配置扬声器寄存器,以及将音频源耦合到多个蓝牙扬声器中的一个蓝牙扬声器 ®扬声器。

    MULTIPLE OUTPUT DYNAMIC ELEMENT MATCHING ALGORITHM WITH MISMATCH NOISE SHAPING FOR DIGITAL TO ANALOG CONVERTERS
    49.
    发明公开
    MULTIPLE OUTPUT DYNAMIC ELEMENT MATCHING ALGORITHM WITH MISMATCH NOISE SHAPING FOR DIGITAL TO ANALOG CONVERTERS 有权
    自适应算法动态元素与失配噪声整形数字模拟转换器多路输出

    公开(公告)号:EP2941826A1

    公开(公告)日:2015-11-11

    申请号:EP13870079.4

    申请日:2013-12-05

    CPC classification number: H03M1/067 H03M1/74 H03M3/502

    Abstract: A system and method dynamically selects digital-to-analog (DAC) circuit elements to provide a true differential-output delta-sigma (ΛΣ) DAC. The sign and magnitude
    m of a received N-b.it input code is determined. If the input code comprises a positive value,
    m + r circuit elements are selected from a plurality of circuit elements by a positive element selector, in which comprises a number of rotational elements, and
    r circuit elements are selected by a negative element selector. Each selected circuit element comprises a circuit, element that was not selected for an immediately preceding received input code and has a corresponding minimum usage count value. If the input digital code comprises a negative value,
    m + r circuit elements are selected by the negative element selector, and.
    r circuit elements are selected by tile positive element selector. The circuit elements are capable of being configured as positive or negative circuit elements.

    Automatic noise cancellation using multiple microphones

    公开(公告)号:US11056093B2

    公开(公告)日:2021-07-06

    申请号:US16446064

    申请日:2019-06-19

    Inventor: James Scanlan

    Abstract: The disclosure includes a headset comprising one or more earphones including one or more sensing components. The headset also includes one or more voice microphones to record a voice signal for voice transmission. The headset also includes a signal processor coupled to the earphones and the voice microphones. The signal processor is configured to employ the sensing components to determine a wearing position of the headset. The signal processor then selects a signal model for noise cancellation. The signal model is selected from a plurality of signal models based on the determined wearing position. The signal processor also applies the selected signal model to mitigate noise from the voice signal prior to voice transmission.

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