CN204613580U - 一种使用有源噪声降低投影机噪音的系统 - Google Patents
一种使用有源噪声降低投影机噪音的系统 Download PDFInfo
- Publication number
- CN204613580U CN204613580U CN201520328817.1U CN201520328817U CN204613580U CN 204613580 U CN204613580 U CN 204613580U CN 201520328817 U CN201520328817 U CN 201520328817U CN 204613580 U CN204613580 U CN 204613580U
- Authority
- CN
- China
- Prior art keywords
- noise
- sound source
- initial
- sensor
- secondary sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520328817.1U CN204613580U (zh) | 2015-05-20 | 2015-05-20 | 一种使用有源噪声降低投影机噪音的系统 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520328817.1U CN204613580U (zh) | 2015-05-20 | 2015-05-20 | 一种使用有源噪声降低投影机噪音的系统 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN204613580U true CN204613580U (zh) | 2015-09-02 |
Family
ID=53966123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201520328817.1U Expired - Fee Related CN204613580U (zh) | 2015-05-20 | 2015-05-20 | 一种使用有源噪声降低投影机噪音的系统 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN204613580U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106292138A (zh) * | 2015-05-20 | 2017-01-04 | 江苏宜清光电科技有限公司 | 一种使用有源噪声降低投影机噪音的系统 |
US10002602B2 (en) | 2016-02-19 | 2018-06-19 | Coretronic Corporation | Method and system for reducing fan noise and electronic device using the same |
-
2015
- 2015-05-20 CN CN201520328817.1U patent/CN204613580U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106292138A (zh) * | 2015-05-20 | 2017-01-04 | 江苏宜清光电科技有限公司 | 一种使用有源噪声降低投影机噪音的系统 |
US10002602B2 (en) | 2016-02-19 | 2018-06-19 | Coretronic Corporation | Method and system for reducing fan noise and electronic device using the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9473210B2 (en) | Power transmitting device, non-contact power transmitting system, and signal generating method | |
EP3018815A3 (en) | Control method and control device a plurality of inverters connected in parallel | |
TW200746616A (en) | Systems, methods and devices for dual closed loop modulation controller for nonlinear RF amplifier | |
WO2014043206A3 (en) | Histotripsy therapy system | |
WO2011115837A3 (en) | Adaptive active noise cancellation system | |
JP2015536829A5 (zh) | ||
CN204613580U (zh) | 一种使用有源噪声降低投影机噪音的系统 | |
JP2012157029A5 (zh) | ||
CN106057189A (zh) | 室内主动降噪装置 | |
EP4050781A4 (en) | PRE-CHARGING CIRCUIT, INVERTER AND POWER GENERATION SYSTEM | |
SG10201901369UA (en) | A method for use in power generation and an associated apparatus | |
CN102801868A (zh) | 在移动终端内进行实时环境噪声抑制的系统 | |
CN105575381A (zh) | 一种列车风冷变流器噪声有源控制的方法 | |
CN103929695A (zh) | 家用嵌入式蓝牙音乐播放系统及播放方法 | |
CN205092055U (zh) | 一种列车风冷变流器噪声有源控制装置 | |
CN207939530U (zh) | 一种语音控制式智能音箱 | |
CN206226117U (zh) | 一种无线声控指令校园广播系统电源装置 | |
EP3780308A4 (en) | INVERTER, GENERATING SYSTEM AND METHOD FOR SUPPRESSING HARMONIC DISTORTION | |
TW200731647A (en) | Signal generating circuit having an electromagnetic induction device for utilizing energy stored by a snubber | |
CN106292138A (zh) | 一种使用有源噪声降低投影机噪音的系统 | |
WO2014114878A3 (fr) | Convertisseur d'énergie électrique à découpage avec deux sorties | |
CN204463812U (zh) | 一种噪声环境调节器 | |
CN205081924U (zh) | 一种耳机及其开关机噪声消除电路 | |
CN202135293U (zh) | 变频音箱 | |
CN203910496U (zh) | 一种变压器噪声抑制装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: 214213 Yongan Road, Yixing Economic Development Zone, Jiangsu, China, Wuxi Patentee after: JIANGSU INOVEL DISPLAY TECHNOLOGY CO., LTD. Address before: 214213 Yongan Road, Yixing Economic Development Zone, Jiangsu, China, Wuxi Patentee before: Jiangsu Inovel Photoelectric Technology Co., Ltd. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20200727 Address after: 239000 building 19, Zhaoyang Industrial Park, 801 Century Avenue, Chuzhou, Anhui. Patentee after: CHUZHOU AILUOWEI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 214213 Yongan Road, Yixing Economic Development Zone, Wuxi, Jiangsu Patentee before: JIANGSU INOVEL DISPLAY TECHNOLOGY Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20210520 |
|
CF01 | Termination of patent right due to non-payment of annual fee |