Adaptive filter unit for being used as an echo canceller

    公开(公告)号:US10291784B2

    公开(公告)日:2019-05-14

    申请号:US15655295

    申请日:2017-07-20

    Abstract: The invention relates to an adaptive filter unit, in particular for being used as an echo canceller, comprising a first filter input, configured to receive a first electric audio signal, indicative of a first audio signal A(t), a second filter input, configured to receive a second electric audio signal, indicative of a second audio signal B(t), a processor and a filter output. The processor is configured to calculate and provide audio estimation data X(fn, A(t1, . . . , tM(fn))) in the frequency domain; to calculate a transformed second audio signal Y(fn, B(t)), formed by a transformation of the second audio signal B(t) into the frequency domain; and to calculate a filtered audio signal by subtracting delayed audio estimation data from the transformed second audio signal, wherein the delayed audio estimation data is provided by a memory unit of the adaptive filter unit, which is arranged to provide a data exchange with the processor, and wherein the delayed audio estimation data comprises a frequency dependent time delay compared to the transformed second audio signal.

    Loudspeaker system comprising equalization dependent on volume control

    公开(公告)号:US09980045B2

    公开(公告)日:2018-05-22

    申请号:US15613677

    申请日:2017-06-05

    CPC classification number: H04R3/04 H03G5/005 H03G5/165 H03G9/025 H04R2430/01

    Abstract: The application relates to a loudspeaker system including an input unit providing an electric input audio signal; an equalization unit for modifying said electric input audio signal in dependence on frequency and to provide an equalized electric audio signal according to a predefined equalization function, a loudspeaker unit for converting said equalized electric audio signal to an acoustic output sound signal, and a user interface for modifying a volume level of said output sound signal in a multitude (N) of steps V0, V1, . . . , VN. The application further relates to a method communication device comprising the loudspeaker system and to its use. The present application provides an improved loudspeaker system in which the equalization unit is configured to apply a specific equalization function EQ0, EQ1, . . . , EQN to the electric input audio signal in each of said multitude of steps V0, V1, . . . , VN of the volume level.

    Method for operating a hearing device and hearing device

    公开(公告)号:US09894445B2

    公开(公告)日:2018-02-13

    申请号:US14179324

    申请日:2014-02-12

    Inventor: Svend Feldt

    CPC classification number: H04R25/305 H04R25/30

    Abstract: A hearing device comprises a receiver, an input buffer and a sample processor, the receiver being adapted to receive samples of a digital audio signal and feed received samples as a digital input signal to the input buffer, the sample processor being adapted to process the buffered samples to provide samples of a digital output signal such that the digital output signal is a sample-rate converted representation of the digital input signal with a predetermined target sample rate. The hearing device further comprises a latency controller adapted to estimate the quality of reception of the digital audio signal and to control the processing of the buffered samples in dependence on the estimated quality of reception.

    LOUDSPEAKER SYSTEM COMPRISING EQUALIZATION DEPENDENT ON VOLUME CONTROL

    公开(公告)号:US20170272859A1

    公开(公告)日:2017-09-21

    申请号:US15613677

    申请日:2017-06-05

    CPC classification number: H04R3/04 H03G5/005 H03G5/165 H03G9/025 H04R2430/01

    Abstract: The application relates to a loudspeaker system including an input unit providing an electric input audio signal; an equalization unit for modifying said electric input audio signal in dependence on frequency and to provide an equalized electric audio signal according to a predefined equalization function, a loudspeaker unit for converting said equalized electric audio signal to an acoustic output sound signal, and a user interface for modifying a volume level of said output sound signal in a multitude (N) of steps V0, V1, . . . , VN. The application further relates to a method communication device comprising the loudspeaker system and to its use. The present application provides an improved loudspeaker system in which the equalization unit is configured to apply a specific equalization function EQ0, EQ1, . . . , EQN to the electric input audio signal in each of said multitude of steps V0, V1, . . . , VN of the volume level.

    Base Station, Wireless Headset and Headband Thereto
    48.
    发明申请
    Base Station, Wireless Headset and Headband Thereto 审中-公开
    基站,无线耳机和头带

    公开(公告)号:US20170055059A1

    公开(公告)日:2017-02-23

    申请号:US15218705

    申请日:2016-07-25

    Abstract: The invention relates to a base station, wireless headset and headband thereto where the headset is powered by a rechargeable battery and where the base station has a cradle and the headset has a cradle-neck, wherein the cradle mount charging output points and the cradle-neck mounts charging input contact points, whereby the headset may be cradled in a charging position to ensure electrical connection between the base station and the rechargeable battery through the electrical contact points; where the wireless headset comprises attachment cites for releasably attachment thereto of the headband to form a headband-headset assembly.

    Abstract translation: 本发明涉及一种基站,无线耳机和头带,其中耳机由可充电电池供电,并且其中基站具有支架,并且耳机具有摇篮颈部,其中支架安装充电​​输出点和支架 - 颈部装载充电输入接触点,由此头戴式耳机可以在充电位置收起,以确保基站和可充电电池之间通过电接触点进行电连接; 其中无线耳机包括用于可释放地附接到头带的附件,以形成头带耳机组件。

    Microphone boom
    49.
    发明授权
    Microphone boom 有权
    麦克风繁荣

    公开(公告)号:US09288562B2

    公开(公告)日:2016-03-15

    申请号:US14788308

    申请日:2015-06-30

    CPC classification number: H04R1/02 H04R1/08 H04R1/083 H04R1/1041 H04R1/406

    Abstract: A microphone boom is provided with an extendable microphone assembly, and a headset having such a microphone boom. The headset includes a casing accommodating the signal transmission circuitry and further includes a speaker adapted to serve a sound signal at the proximity of a user's ear and the speaker is protruding from the casing at a speaker-end of the casing and a microphone assembly is fixated relative to the casing distally with respect to the speaker-end.

    Abstract translation: 麦克风吊杆设置有可延伸的麦克风组件和具有这种麦克风吊杆的耳机。 耳机包括容纳信号传输电路的壳体,并且还包括适于在用户耳朵附近服务声音信号的扬声器,并且扬声器在壳体的扬声器端处从壳体突出并且固定麦克风组件 相对于外壳相对于扬声器端向远侧。

    HEADPHONES WITH OVER THE HEAD PASSAGE
    50.
    发明申请
    HEADPHONES WITH OVER THE HEAD PASSAGE 有权
    耳机与头部通话

    公开(公告)号:US20150195640A1

    公开(公告)日:2015-07-09

    申请号:US14590421

    申请日:2015-01-06

    CPC classification number: H04R1/1058 H04R1/1033 H04R1/105 H04R5/0335

    Abstract: A headphone with over the head passage and two earphone housings is provided, with one housing attached at each end of the over the head passage at attachment areas thereof, and an electrical lead element passing between the over the head passage and the earphone housing. The over the head passage is connected at the attachment area to an earphone housing at an earphone attachment site arranged externally of the earphone housing, and the earphone housing comprise a lead element opening spaced from the earphone attachment site. The lead element opening is larger than the electrical lead element and the lead element is slidably arranged in the lead element opening.

    Abstract translation: 提供了一种在头部通道和两个耳机壳体之上的耳机,其一个壳体在其头部通道的附接区域的两端附接,并且电引线元件在头部通道和耳机壳体之间通过。 头部通道上方的连接区域连接到位于耳机外壳外部的耳机附件位置处的耳机外壳,耳机外壳包括与耳机附件位置间隔开的引线元件开口。 引线元件开口大于电引线元件,并且引线元件可滑动地布置在引线元件开口中。

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