Invention Grant
- Patent Title: Electrical-acoustic transformation device and electronic device
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Application No.: US15552555Application Date: 2015-12-17
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Publication No.: US10291991B2Publication Date: 2019-05-14
- Inventor: Lianwen Shan , Xinfeng Yang , Hairong Wang , Longhao Cui
- Applicant: Goertek, Inc.
- Applicant Address: CN Weifang, Shandong
- Assignee: GOERTEK, INC.
- Current Assignee: GOERTEK, INC.
- Current Assignee Address: CN Weifang, Shandong
- Agency: Hultquist, PLLC
- Agent Steven J. Hultquist
- Priority: CN201510264434 20150521
- International Application: PCT/CN2015/097756 WO 20151217
- International Announcement: WO2016/184094 WO 20161124
- Main IPC: H04R1/02
- IPC: H04R1/02 ; H04R1/24 ; H04R17/00 ; H04R1/22 ; H04R19/01 ; H04R19/02 ; H04R1/40 ; H04R7/06
Abstract:
Disclosed are an electrical-acoustic transformation device and an electronic device, including a moving coil electrical-acoustic transformation unit and a piezoelectric buzzer. The electrical-acoustic transformation device in the present invention has a moving coil sound generating structure and a piezoelectric sound generating structure. The piezoelectric plate compensates the high-frequency response of a vibrating system, realizing an electrical-acoustic transformation device with good performance and super wideband.
Public/Granted literature
- US20180054680A1 ELECTRICAL-ACOUSTIC TRANSFORMATION DEVICE AND ELECTRONIC DEVICE Public/Granted day:2018-02-22
Information query
