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    ULTRA-SLIM HIGH-RESOLUTION ELECTROMAGNETIC SPEAKER USING BRIDGE-EDGE METHOD
    23.
    发明公开
    ULTRA-SLIM HIGH-RESOLUTION ELECTROMAGNETIC SPEAKER USING BRIDGE-EDGE METHOD 审中-公开

    公开(公告)号：EP3567872A1

    公开(公告)日：2019-11-13

    申请号：EP17890137.7

    申请日：2017-12-28

    Applicant: Yu, Soojin ,  Yu, Sooho

    Inventor： Yu, Soojin ,  Yu, Sooho

    IPC: H04R9/06 ,  H04R9/02 ,  H04R9/04 ,  H04R7/04 ,  H04R7/12 ,  H04R7/20

    Abstract: The present invention relates to an ultra slim high-resolution electromagnetic speaker with bridge-edge, wherein a pair of magnetic circuits stacked on the upper and lower sides of the vibration module and a permanent magnet are provided in a horizontal arrangement structure and a permanent magnet is disposed inside the coil, so that an ultra slim speaker may be obtained and the inner magnetic field of the permanent magnet whose distance between the opposite poles of the permanent magnet is approximated by the limiter may be used as the driving bias of the diaphragm to reduce the magnetoresistance and increase the efficiency.

    SPEAKER
    28.
    发明授权
    SPEAKER 有权

    公开(公告)号：EP1845750B1

    公开(公告)日：2018-06-13

    申请号：EP06715538.2

    申请日：2006-03-10

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： TAKEWA, Hiroyuki, c/o Mats. El. Ind. Co., Ltd., IPROC

    IPC: H04R7/18 ,  H04R7/04 ,  H04R9/00 ,  H04R9/04 ,  H04R9/06

    CPC classification number: H04R9/045 ,  H04R7/04 ,  H04R7/18 ,  H04R9/047 ,  H04R9/06 ,  H04R2209/041 ,  H04R2499/11 ,  H04R2499/13 ,  H04R2499/15

    Abstract: The speaker according to the present invention comprises: a magnetic circuit; a diaphragm, a part of which is located in a magnetic gap formed in the magnetic circuit; a ring-shaped first voice coil formed on a first vibrating surface of the diaphragm; a ring-shaped second voice coil which is formed on a second vibrating surface of the diaphragm, the second vibrating surface being an opposite surface to the first vibrating surface, and which is electrically conducted with the first voice coil; and an edge firmly fixed on an outer margin of the first vibrating surface and operable to support the diaphragm in such a manner that enables vibration. The first voice coil is formed so as to be located inside of an inner circumference of the edge and also within the magnetic gap. The second voice coil is formed so as to have at least a part of an outermost circumference thereof is located outside of the inner circumference of the edge and within the magnetic gap.

    SPEAKER APPARATUS AND ELECTRONIC APPARATUS INCLUDING SAME
    29.
    发明公开
    SPEAKER APPARATUS AND ELECTRONIC APPARATUS INCLUDING SAME 审中-公开

    公开(公告)号：EP3326387A1

    公开(公告)日：2018-05-30

    申请号：EP16830678.5

    申请日：2016-05-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： KIM, Sung-joo ,  KIM, Jong-bae ,  SON, Sung-ha

    IPC: H04R19/02 ,  H04R9/02 ,  H04R9/04

    Abstract: A speaker apparatus includes a speaker unit including a magnet configured to provide a magnetic field; and a membrane disposed in the magnet field, configured to be vibratable in a first direction, and configured to emit a sound in a second direction perpendicular to the first direction; and a blocking unit disposed at the membrane, configured to block a first region of the membrane having a first height along the first direction from being exposed and configured to expose a second region of the membrane having a second height, a sum of the first and the second heights corresponds to a total height of the membrane, wherein the first height of the membrane blocked by the blocking unit is less than a half of a wavelength corresponding to a maximum frequency in a frequency domain of the sound emitted from the membrane.

    SPEAKER DEVICE AND METHOD OF REDUCING SPEAKER DISTORTION LEVEL
    30.
    发明公开
    SPEAKER DEVICE AND METHOD OF REDUCING SPEAKER DISTORTION LEVEL 审中-公开

    公开(公告)号：EP3249951A4

    公开(公告)日：2018-03-14

    申请号：EP15889018

    申请日：2015-11-16

    Applicant: GOERTEK INC

    Inventor： HAN DAN ,  YANG YUN

    IPC: H04R29/00 ,  H04R3/08 ,  H04R9/04

    CPC classification number: H03G11/04 ,  H04R3/00 ,  H04R3/08 ,  H04R9/041 ,  H04R9/06 ,  H04R29/001 ,  H04R29/003 ,  H04R2499/11

    Abstract: The present invention discloses a speaker device and electronic equipment. The speaker device comprises a speaker body, an audio signal input terminal connected with the speaker body, and a DC voltage signal input terminal connected with the speaker body. The electronic equipment comprises the speaker device and a DC voltage signal output circuit. The present invention further discloses a method for reducing a low frequency distortion degree of the speaker of the electronic equipment, and the method is realized by additionally providing a DC voltage signal to the input end of the speaker. In the present invention, a distortion degree of the speaker device at a low-frequency working condition can be reduced, and inconsistency of low frequency distortion of the speaker device, caused by mass production, can be reduced.

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