公开(公告)号：US10212501B2

公开(公告)日：2019-02-19

申请号：US15505001

申请日：2014-08-27

Applicant: Goertek.Inc

Inventor： Zhe Wang ,  Quanbo Zou ,  Jifang Tao

IPC: H04R25/00 ,  H04R1/08 ,  H04R19/01 ,  H04R19/00 ,  H04R1/02 ,  H04R19/04 ,  H04R3/00

Abstract: The disclosure provides a MEMS device. The MEMS device comprises a printed circuit board, a cover attached to the printed circuit board to form a housing, at least one sound hole formed in the housing, a transducer with a diaphragm inside the housing, and at least one shutter structure. Each shutter structure is mounted to the housing around a respective sound hole. Each shutter structure comprises a moveable component disposed near the inner surface of the housing, the moveable component remains at an open position under regular pressure such that an air flow path from the sound hole to the at least one ventilation hole of the substrate across the moveable component is opened, and moves to a first closed position under a high external pressure to block the at least one ventilation hole and close the air flow path.

公开(公告)号：US20180270578A1

公开(公告)日：2018-09-20

申请号：US15556091

申请日：2015-12-17

Applicant: GOERTEK.INC

Inventor： Xiuli CHANG ,  Jianbin YANG

IPC: H04R7/12 ,  H04R31/00

CPC classification number: H04R7/125 ,  H04R7/06 ,  H04R7/127 ,  H04R31/003 ,  H04R2307/023 ,  H04R2307/025 ,  H04R2307/029

Abstract: Disclosed are a vibration diaphragm and a speaker device. The vibration diaphragm includes a vibration diaphragm body portion and a reinforcement portion incorporated at the center of the vibration diaphragm body portion and including a carbon fiber cloth layer. The vibration diaphragm in the present invention employs a carbon fiber cloth with a relatively light weight and relatively high rigidity as the reinforcement portion, which can sufficiently satisfy the requirements to the vibration diaphragm acoustic performance by the speaker device.

公开(公告)号：US20180048973A1

公开(公告)日：2018-02-15

申请号：US15553414

申请日：2015-12-17

Applicant: GOERTEK.INC

Inventor： Kang PING ,  Xinfeng YANG ,  Jie WEI

IPC: H04R29/00 ,  H04R23/00

CPC classification number: H04R29/00 ,  H04R3/007 ,  H04R23/002 ,  H04R29/003

Abstract: Disclosed are a method, system and controller for simultaneously verifying amplitude and temperature parameters of an electrical-acoustic conversion device, including: inputting a sweep signal to the electrical-acoustic conversion device; testing the amplitude of the electrical-acoustic conversion device while adjusting the gain of the whole frequency band of the sweep signal until the maximum value of the tested amplitude is a maximum amplitude parameter Xmax, and testing the temperature of a voice coil at this moment; and if the tested temperature of the voice coil at this moment is higher or lower than Tmax, gradually reducing/increasing the gain of the sweep signal in the frequency band above a gain improvement frequency point until the tested temperature of the voice coil is Tmax, and then maintaining the gain of the sweep signal for a predetermined period of time and then testing the performance of the electrical-acoustic conversion device.