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943 条记录 (耗时 0.025 秒)

    Balanced armature receiver
    3.
    发明授权
    Balanced armature receiver 有权

    公开(公告)号：US12047740B2

    公开(公告)日：2024-07-23

    申请号：US17842744

    申请日：2022-06-16

    申请人： Knowles Electronics, LLC

    发明人： Yahui Zhang ,  Shehab Albahri

    IPC分类号： H04R11/02 ,  H01F7/08 ,  H01F7/128 ,  H04R1/02 ,  H04R7/12

    CPC分类号： H04R11/02 ,  H01F7/081 ,  H01F7/128 ,  H04R1/025 ,  H04R7/12 ,  H01F2007/086

    摘要： A balanced armature receiver including a motor with a yoke for retaining magnets and fastening to an armature are disclosed. The yoke includes a close-ended wall structure formed of a soft magnetic material having multiple folded corners defining an armature passage. A first magnet retaining wall portion of the yoke is arranged in parallel with, and opposite, a second magnet retaining wall portion, wherein at least a portion of the first magnet retaining wall portion has a reduced thickness relative to other wall portions of the close-ended wall structure. The armature is connected to the reduced thickness portion of the first magnet retaining wall portion, thereby reducing an overall z-axis dimension of the motor.

    LOUDSPEAKER FOR HEARING DEVICE
    4.
    发明公开
    LOUDSPEAKER FOR HEARING DEVICE 审中-公开

    公开(公告)号：US20240171916A1

    公开(公告)日：2024-05-23

    申请号：US18058095

    申请日：2022-11-22

    申请人： KNOWLES ELECTRONICS, LLC

    发明人： MOHAMMAD MOHAMMADI ,  CHARLES KING ,  YAHUI ZHANG ,  DONALD VERGHESE JACOB ,  CHRISTOPHER MONTI

    IPC分类号： H04R11/02 ,  H04R7/18 ,  H04R31/00

    CPC分类号： H04R11/02 ,  H04R7/18 ,  H04R31/006 ,  H04R2400/07

    摘要： A wearable loudspeaker includes a magnetic-flux-carrying housing that houses an acoustic sealing structure that separates an interior of the housing into a back volume and a front volume acoustically coupled to a sound port. A first coil is retained in the front volume and comprises a first winding about a corresponding first magnetic core. A second coil is retained in the back volume and comprises a second winding about a corresponding second magnetic core. Opposing surfaces of the first and second magnetic cores have opposite magnetic polarities and produce a magnetic field in a gap between the first and second coils. A magnetic-flux-carrying armature is movably located in the gap and fastened to the acoustic sealing structure. Sound is emitted from the sound port when the armature moves the acoustic sealing structure in the gap.

    SUSPENSION FOR MOVING MAGNET ACTUATOR
    5.
    发明公开
    SUSPENSION FOR MOVING MAGNET ACTUATOR 审中-公开

    公开(公告)号：US20240129672A1

    公开(公告)日：2024-04-18

    申请号：US18500835

    申请日：2023-11-02

    申请人： Google LLC

    发明人： Jason David Walker ,  Timothy A. Gladwin ,  Rajiv Bernard Gomes

    IPC分类号： H04R11/02 ,  H04R7/04

    CPC分类号： H04R11/02 ,  H04R7/04 ,  H04R2400/11 ,  H04R2499/11

    摘要： An actuator module includes a baseplate extending in a plane, a voice coil connected to the baseplate, and a magnet assembly. The actuator module also includes a rigid frame attached to the baseplate, the rigid frame comprising four stubs. The actuator module further includes a pair of springs suspending the magnet assembly relative to the frame and baseplate so that the voice coil extends into the air gap, the pair of springs including a first and second spring each shaped as a loop defining an aperture sized to accommodate motion of the magnet assembly along a direction of the coil axis, the first spring being attached to the frame at a first pair of the four stubs, the second spring being attached to the frame at a second pair of the four stubs, and both being attached to separate portions of the magnet assembly.

    System for generating low frequency vibration waves to emulate audio frequency
    7.
    发明授权
    System for generating low frequency vibration waves to emulate audio frequency 有权

    公开(公告)号：US11910172B1

    公开(公告)日：2024-02-20

    申请号：US18129047

    申请日：2023-03-30

    申请人： Luis Stohr

    发明人： Luis Stohr

    IPC分类号： H04R11/02 ,  H04R3/08 ,  H04R9/04 ,  H04R1/46

    CPC分类号： H04R3/08 ,  H04R1/46 ,  H04R9/046

    摘要： A system for generating low and low to middle-frequency vibration waves to emulate low and low to middle audio frequencies includes an exciter device including a solenoid device located adjacent to a vibration micro motor; wherein the solenoid device includes an impact member contacted to a returning spring and configured to generate low frequency vibration waves; wherein the vibration micro motor includes a motor coupled to at least one rotatable metal member and configured to generate low-middle frequency vibration waves.

    Infinite baffle with low stiffness
    8.
    发明授权
    Infinite baffle with low stiffness 有权

    公开(公告)号：US11770648B2

    公开(公告)日：2023-09-26

    申请号：US17298795

    申请日：2019-12-03

    申请人： DEVIALET

    发明人： Eduardo Mendes ,  Bérenger Roig

    IPC分类号： H04R1/28 ,  H04R7/18 ,  H04R9/06 ,  H04R11/02 ,  H04R7/26 ,  H04R1/02 ,  H04R1/42

    CPC分类号： H04R1/2811 ,  H04R1/02 ,  H04R1/42 ,  H04R7/18 ,  H04R7/26 ,  H04R9/06 ,  H04R11/02 ,  H04R2400/11

    摘要： Infinite acoustic baffle (10) comprising a box (12) and a loudspeaker (20) comprising a membrane (22) that is movable relative to the box (12), the box (12) and the membrane (22) defining a substantially closed baffle chamber (14); the loudspeaker (20) comprising an electrically controlled motor (30) for actuating the membrane (22) that is able to move relative to the box (12), the baffle also comprising a mechanism (50) for axially urging the membrane (22) away from its median rest position counter to the pressure force exerted on the membrane (22) by the gas contained in the box (12) characterized in that the mechanism (50) comprises a cam (54) that is movable relative to the box (12) along an axis (X-X) for displacing of the cam under the displacement action of the membrane (22) and at least one cam follower (58A, 58B) that is biased transversely to the cam (54) by at least one spring (60A, 60B) and bears on the cam (54), the cam (54) having at least one cam surface (56A, 56B) capable of converting the transverse force of the or each spring (60A, 60B) into an axial force on the cam (54), the intensity of which varies depending on the position of the cam (54) relative to the box (12).

    ACOUSTIC RECEIVERS WITH MULTIPLE DIAPHRAGMS
    10.
    发明申请
    ACOUSTIC RECEIVERS WITH MULTIPLE DIAPHRAGMS 有权

    公开(公告)号：US20230082965A1

    公开(公告)日：2023-03-16

    申请号：US18056582

    申请日：2022-11-17

    申请人： KNOWLES ELECTRONICS, LLC

    发明人： SHEHAB ALBAHRI ,  YAHUI ZHANG ,  KALYAN NADELLA ,  THOMAS MILLER ,  CHRISTOPHER MONTI ,  CHARLES KING ,  JOSE SALAZAR

    IPC分类号： H04R11/02 ,  H04R1/10 ,  H04R9/02 ,  H04R9/04

    摘要： Sound-producing acoustic receivers are disclosed. The acoustic receiver includes a receiver housing with a first internal volume and a second internal volume, a first diaphragm separating the first internal volume into a first front volume and a first back volume such that the first front volume has a first sound outlet port, a second diaphragm separating the second internal volume into a second front volume and a second back volume such that the second front volume has a second sound outlet port, a motor disposed at least partially inside the housing such that the motor including an armature mechanically coupled to both the first diaphragm and the second diaphragm, an acoustic seal between the first front volume and the second back volume such that the acoustic seal accommodates the mechanical coupling of the armature to one of the first diaphragm or the second diaphragm.