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    LOUDSPEAKER DEVICE
    15.
    发明申请
    LOUDSPEAKER DEVICE 审中-公开

    公开(公告)号：US20200154184A1

    公开(公告)日：2020-05-14

    申请号：US16733841

    申请日：2020-01-03

    Applicant: Apple Inc.

    Inventor： Meiting Wu ,  Simon K. Porter ,  Glenn K. Trainer ,  Jacob A. Pfitsch ,  Rex P. Price ,  Samuel G. Parker ,  Ethan L. Huwe ,  Craig M. Stanley

    IPC: H04R1/02 ,  H04R9/02 ,  H04R9/06 ,  H04R1/40 ,  H04R1/26

    Abstract: This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.

    Loudspeaker with reduced audio coloration caused by reflections from a surface
    16.
    发明授权
    Loudspeaker with reduced audio coloration caused by reflections from a surface 有权

    公开(公告)号：US10652650B2

    公开(公告)日：2020-05-12

    申请号：US15513955

    申请日：2015-09-29

    Applicant: Apple Inc.

    Inventor： Martin E. Johnson ,  Simon K. Porter ,  Suzanne Hardy ,  John H. Sheerin

    IPC: H04R1/28 ,  H04R1/40 ,  H04R1/02 ,  H04R1/26 ,  H04R3/14

    Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

    Audio systems with active feedback acoustic echo cancellation
    18.
    发明授权
    Audio systems with active feedback acoustic echo cancellation 有权

    公开(公告)号：US10109292B1

    公开(公告)日：2018-10-23

    申请号：US15613198

    申请日：2017-06-03

    Applicant: Apple Inc.

    Inventor： Sylvain J. Choisel ,  Simon K. Porter

    IPC: H04B3/20 ,  G10L21/0232 ,  H04R3/00 ,  H04R9/06 ,  H04R3/04 ,  H04R29/00 ,  G10L21/0208 ,  G10L21/0216

    Abstract: An audio system includes an external microphone to receive a near-end audio content and a loudspeaker transducer and a corresponding enclosure defining an acoustic chamber. An internal pressure-gradient microphone is positioned in the acoustic chamber to detect a radiated output from the loudspeaker transducer. The audio system also includes a processor and a memory having instructions that, when executed by the processor, cause the audio system to receive a near-end signal from the external microphone and a reference signal from the internal microphone. The instructions, when executed, further cause the processor to cause the audio system to filter the reference signal from the near-end signal to define a clean near-end signal, and to emit the clean near-end signal. Related principles are described by way of reference to method and apparatus examples.

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