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    Directive multiway loudspeaker with a waveguide
    4.
    发明授权
    Directive multiway loudspeaker with a waveguide 有权

    公开(公告)号：US12200434B2

    公开(公告)日：2025-01-14

    申请号：US17635717

    申请日：2020-08-20

    Applicant: Genelec Oy

    Inventor： Jussi Väisänen ,  Juha Holm

    IPC: H04R1/24 ,  H04R1/02 ,  H04R1/28 ,  H04R1/34

    Abstract: The present disclosure provides a loudspeaker including a uniform enclosure having front portion, side portions and back portion defining an inner volume, the front portion is formed as a waveguide surface and includes at least one driver in the waveguide surface and is capable of radiating the main acoustic power of the loudspeaker to direction of first acoustic axis, and an at least one additional driver attached to the enclosure, the additional driver is attached inside the enclosure such that a sub volume is formed inside the inner volume, the sub volume limited by the driver, spacers between the driver and the front portion, and the front portion of the enclosure, at least one first port is adapted to open from the sub volume to ambient volume either to side portion or back portion of the enclosure, and at least one resonator including at least one resonator cavity acoustically connected to the sub volume, the resonator being tuned to at least one of unwanted resonances of the sub volume. The resonator may be formed as a separate unit connected to the uniform enclosure.

    AUDIO PROCESSING DEVICE AND METHOD
    5.
    发明申请
    AUDIO PROCESSING DEVICE AND METHOD 有权

    公开(公告)号：US20250008268A1

    公开(公告)日：2025-01-02

    申请号：US18885715

    申请日：2024-09-15

    Applicant: Shenzhen Shokz Co., Ltd.

    Inventor： Qingyuan TIAN ,  Liang WANG ,  Jingbo QIU ,  Fanrong ZENG

    IPC: H04R3/12 ,  H04R1/24

    Abstract: The audio processing device and method provided in the present disclosure include an audio processing device that includes a sound-producing module and an audio processing circuit. The sound-producing module includes K sound-producing units, each with different audio characteristics, where K is an integer greater than one. After obtaining the initial audio data, the audio processing circuit converts the initial audio data into K-channel target audio data, with each channel's target audio data adapted to the audio characteristics of the corresponding sound-producing unit. The K-channel target audio data is then input into the corresponding K sound-producing units, where each sound-producing unit converts the corresponding target audio data into the target audio, thereby forming reverberated sound. This approach enhances the audio quality of the audio processing.

    Coaxial speaker
    8.
    发明授权
    Coaxial speaker 有权

    公开(公告)号：US12160719B2

    公开(公告)日：2024-12-03

    申请号：US17914355

    申请日：2022-07-20

    Applicant: AAC Microtech (Changzhou) Co., Ltd.

    Inventor： Zhang Ren ,  Qi Wang ,  Zhiwei Zhong

    IPC: H04R9/02 ,  H04R1/24 ,  H04R7/18

    Abstract: A coaxial speaker includes a first sounding unit, a second sounding unit coaxial with and surrounded by the first sounding unit, and a magnetic circuit system including a bottom plate, a first magnetic unit and a second magnetic unit spaced apart from the first magnetic unit for forming a first magnetic gap for the first sounding unit. The second magnetic unit includes a second magnet in an annular shape, a second yoke in an annular shape attached to the second magnet, and a third magnet in an annular shape attached to the second yoke. The bottom plate is provided with a bending wall locating inside the second magnetic unit, the bending wall is spaced apart from the second magnetic unit for forming a second magnetic gap for the second sounding unit. The coaxial speaker can reduce a product height and a magnetic circuit system cost.

    Electronic device having multiple speakers controlled by a single functional chip
    10.
    发明授权
    Electronic device having multiple speakers controlled by a single functional chip 有权

    公开(公告)号：US12143786B2

    公开(公告)日：2024-11-12

    申请号：US18079011

    申请日：2022-12-12

    Applicant: RICHTEK TECHNOLOGY CORP.

    Inventor： Tsung-Han Yang ,  Yen-Chih Wang ,  Ming-Jun Hsiao ,  Tsung-Nan Wu

    IPC: H04R3/12 ,  H04R1/24 ,  H04R3/04 ,  H04R5/04

    Abstract: An electronic device includes two speakers, a single functional chip, a parameter extraction circuit, an audio processing module, a gain adjusting circuit and a current detecting unit. The current detecting unit is disposed in the functional chip for detecting the driving current of the two speakers. The functional chip provides the driving voltage of the two speakers based on an output signal and converts the analogue current/voltages of the two speakers into digital current/voltages. The parameter extraction circuit acquires the parameter of each speaker based on the digital current/voltages. The audio processing module acquires the gains of various physical quantities based on the parameter of each speaker and determines the final gain of each physical quantity. The gain adjusting circuit provides the output signal by adjusting the gain of an input signal based on the final gain of each physical quantity.

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