Pickup Apparatus and Pickup Method

    公开(公告)号:US20170105067A1

    公开(公告)日:2017-04-13

    申请号:US15383167

    申请日:2016-12-19

    CPC classification number: H04R3/005 H03G11/008 H04R3/00 H04R2430/01

    Abstract: A pickup apparatus includes a digital signal processor, at least one microphone, multiple amplifiers, and multiple analog-to-digital converters (ADCs), where each microphone is configured to receive an audio signal, and send the audio signal to an amplifier corresponding to the microphone, each amplifier is configured to amplify the received audio signal, and send the amplified audio signal to an analog-to-digital converter corresponding to the amplifier, each analog-to-digital converter is configured to convert the received audio signal into a digital signal, and send the digital signal to the digital signal processor, and the digital signal processor is configured to receive multiple digital signals sent by the multiple analog-to-digital converters, determine an unclipped digital signal from the multiple received digital signals, and determine an output signal according to a gain value corresponding to the unclipped digital signal. The pickup apparatus disclosed in the present disclosure may have excellent pickup performance in various pickup scenarios.

    Noise cancellation apparatus and method

    公开(公告)号:US11962968B2

    公开(公告)日:2024-04-16

    申请号:US17496754

    申请日:2021-10-07

    Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted, thereby improving a noise cancellation effect and user experience.

    NOISE CANCELLATION APPARATUS AND METHOD

    公开(公告)号:US20250133328A1

    公开(公告)日:2025-04-24

    申请号:US18635035

    申请日:2024-04-15

    Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted.

    Active Noise Cancellation Device
    5.
    发明申请

    公开(公告)号:US20190122650A1

    公开(公告)日:2019-04-25

    申请号:US16206060

    申请日:2018-11-30

    Abstract: An active noise cancellation device includes a first input for receiving a microphone signal from the microphone, a first electrical compensation path and a second electrical compensation path being coupled in parallel between a first node and the first input to provide a first noise canceling signal for a feed-backward prediction of a noise source, a third electrical compensation path and a fourth electrical compensation path being coupled in parallel between a second node and the first input to provide a second noise canceling signal for a feed-forward prediction of the noise source.

    NOISE CANCELLATION APPARATUS AND METHOD

    公开(公告)号:US20220030349A1

    公开(公告)日:2022-01-27

    申请号:US17496754

    申请日:2021-10-07

    Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted, thereby improving a noise cancellation effect and user experience.

    Active noise cancellation device
    8.
    发明授权

    公开(公告)号:US10147411B2

    公开(公告)日:2018-12-04

    申请号:US15381768

    申请日:2016-12-16

    Abstract: An active noise cancellation device for cancelling a primary acoustic path between a noise source and a microphone by an overlying secondary acoustic path between a canceling loudspeaker and the microphone, the device comprising: a first input for receiving a microphone signal from the microphone; wherein the first electrical compensation path and the second electrical compensation path are coupled in parallel between a first node and the first input to provide the first noise canceling signal for a feed-backward prediction of the noise source; wherein the third electrical compensation path and the fourth electrical compensation path are coupled in parallel between a second node and the first input to provide the second noise canceling signal for a feed-forward prediction of noise source.

    Pickup apparatus and pickup method

    公开(公告)号:US10015591B2

    公开(公告)日:2018-07-03

    申请号:US15383167

    申请日:2016-12-19

    CPC classification number: H04R3/005 H03G11/008 H04R3/00 H04R2430/01

    Abstract: A pickup apparatus includes a digital signal processor, at least one microphone, multiple amplifiers, and multiple analog-to-digital converters (ADCs), where each microphone is configured to receive an audio signal, and send the audio signal to an amplifier corresponding to the microphone, each amplifier is configured to amplify the received audio signal, and send the amplified audio signal to an analog-to-digital converter corresponding to the amplifier, each analog-to-digital converter is configured to convert the received audio signal into a digital signal, and send the digital signal to the digital signal processor, and the digital signal processor is configured to receive multiple digital signals sent by the multiple analog-to-digital converters, determine an unclipped digital signal from the multiple received digital signals, and determine an output signal according to a gain value corresponding to the unclipped digital signal. The pickup apparatus disclosed in the present disclosure may have excellent pickup performance in various pickup scenarios.

    Method and device for generating morphing animation
    10.
    发明授权
    Method and device for generating morphing animation 有权
    用于生成变形动画的方法和装置

    公开(公告)号:US08531484B2

    公开(公告)日:2013-09-10

    申请号:US13627700

    申请日:2012-09-26

    CPC classification number: G06T13/80 G06T13/40

    Abstract: Embodiments of the present invention provide a method and a device for generating a morphing animation from multiple images, where the method includes: performing hue preprocessing on adjacent images among multiple images; determining the quantity of intermediate frames between the adjacent images according to a feature point differential of the adjacent images on which the hue preprocessing has been performed, generating, between the adjacent images through an image warping technology, intermediate frame images, the quantity of which is the same as that of the intermediate frames, insert the intermediate frame images between the adjacent images, and generate a morphing animation from the multiple images and the intermediate frame images that are inserted between all adjacent images among the multiple images. The morphing animation generated in the present invention is smooth and natural, thereby improving a morphing effect of the morphing animation.

    Abstract translation: 本发明的实施例提供了一种用于从多个图像生成变形动画的方法和装置,其中该方法包括:对多个图像之间的相邻图像执行色调预处理; 根据已经执行了色相预处理的相邻图像的特征点差来确定相邻图像之间的中间帧的数量,通过图像扭曲技术在相邻图像之间生成其数量为 与中间帧的相同,在相邻图像之间插入中间帧图像,并从多个图像和插入在多个图像中的所有相邻图像之间的中间帧图像生成变形动画。 在本发明中产生的变形动画是平滑和自然的,从而改善变形动画的变形效果。

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