CN102438192A - Audio parametric array speaker system and modulation method thereof - Google Patents
Audio parametric array speaker system and modulation method thereof Download PDFInfo
- Publication number
- CN102438192A CN102438192A CN201110420128XA CN201110420128A CN102438192A CN 102438192 A CN102438192 A CN 102438192A CN 201110420128X A CN201110420128X A CN 201110420128XA CN 201110420128 A CN201110420128 A CN 201110420128A CN 102438192 A CN102438192 A CN 102438192A
- Authority
- CN
- China
- Prior art keywords
- signal
- carrier
- speaker system
- carrier wave
- power amplifier
- 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.)
- Granted
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110420128.XA CN102438192B (en) | 2011-12-15 | 2011-12-15 | Audio parametric array speaker system and modulation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110420128.XA CN102438192B (en) | 2011-12-15 | 2011-12-15 | Audio parametric array speaker system and modulation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102438192A true CN102438192A (en) | 2012-05-02 |
CN102438192B CN102438192B (en) | 2014-04-16 |
Family
ID=45986032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110420128.XA Expired - Fee Related CN102438192B (en) | 2011-12-15 | 2011-12-15 | Audio parametric array speaker system and modulation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102438192B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102636786A (en) * | 2012-05-17 | 2012-08-15 | 绵阳市浦发电子科技有限公司 | Detecting sonar for underwater buried objects based on parametric array |
CN102780965A (en) * | 2012-08-09 | 2012-11-14 | 广州励丰文化科技股份有限公司 | Method for correcting stage and video professional sound system |
CN102780964A (en) * | 2012-08-09 | 2012-11-14 | 广州励丰文化科技股份有限公司 | Method for adjusting professional loudspeaker system |
CN102811412A (en) * | 2012-08-09 | 2012-12-05 | 广州励丰文化科技股份有限公司 | Specialized speaker system regulation method |
CN104808212A (en) * | 2015-05-05 | 2015-07-29 | 深圳星宇远程定向测控技术有限公司 | Parametric-array remote fish finding system |
CN107453821A (en) * | 2017-07-05 | 2017-12-08 | 厦门声戎科技有限公司 | A kind of sound concealed communication method based on array orientation |
CN111816155A (en) * | 2020-07-03 | 2020-10-23 | 电子科技大学 | Expandable and wave beam controllable directional sound wave transmitting device |
CN111818422A (en) * | 2020-07-03 | 2020-10-23 | 电子科技大学 | Fixed-point sound wave transmitting device based on parametric array principle |
CN112601155A (en) * | 2020-12-10 | 2021-04-02 | 南京汉得利智能科技有限公司 | Method and system for digital parametric array loudspeaker |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005039437A (en) * | 2003-07-17 | 2005-02-10 | Seiko Epson Corp | Ultrasonic speaker, and signal sound reproducing methodforf ultrasonic speaker |
US20070183605A1 (en) * | 2006-02-03 | 2007-08-09 | Seiko Epson Corporation | Method of controlling output of ultrasonic speaker, ultrasonic speaker system, and display device |
CN101262712A (en) * | 2007-03-09 | 2008-09-10 | 付庆兴 | A voice directional spreading sound system |
-
2011
- 2011-12-15 CN CN201110420128.XA patent/CN102438192B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005039437A (en) * | 2003-07-17 | 2005-02-10 | Seiko Epson Corp | Ultrasonic speaker, and signal sound reproducing methodforf ultrasonic speaker |
US20070183605A1 (en) * | 2006-02-03 | 2007-08-09 | Seiko Epson Corporation | Method of controlling output of ultrasonic speaker, ultrasonic speaker system, and display device |
CN101262712A (en) * | 2007-03-09 | 2008-09-10 | 付庆兴 | A voice directional spreading sound system |
Non-Patent Citations (1)
Title |
---|
赵洪亮,朱海生,孙西瑞: "基于TMS320VC33 的指向性扬声器的设计", 《山东科技大学学报(自然科学版)》 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102636786A (en) * | 2012-05-17 | 2012-08-15 | 绵阳市浦发电子科技有限公司 | Detecting sonar for underwater buried objects based on parametric array |
CN102780964B (en) * | 2012-08-09 | 2016-08-10 | 广州励丰文化科技股份有限公司 | Professional loudspeaker system method of adjustment |
CN102780964A (en) * | 2012-08-09 | 2012-11-14 | 广州励丰文化科技股份有限公司 | Method for adjusting professional loudspeaker system |
CN102811412A (en) * | 2012-08-09 | 2012-12-05 | 广州励丰文化科技股份有限公司 | Specialized speaker system regulation method |
CN102780965B (en) * | 2012-08-09 | 2016-08-10 | 广州励丰文化科技股份有限公司 | Stage, video professional sound system bearing calibration |
CN102780965A (en) * | 2012-08-09 | 2012-11-14 | 广州励丰文化科技股份有限公司 | Method for correcting stage and video professional sound system |
CN102811412B (en) * | 2012-08-09 | 2016-09-28 | 广州励丰文化科技股份有限公司 | A kind of professional loudspeaker system method of adjustment |
CN104808212A (en) * | 2015-05-05 | 2015-07-29 | 深圳星宇远程定向测控技术有限公司 | Parametric-array remote fish finding system |
CN107453821A (en) * | 2017-07-05 | 2017-12-08 | 厦门声戎科技有限公司 | A kind of sound concealed communication method based on array orientation |
CN111816155A (en) * | 2020-07-03 | 2020-10-23 | 电子科技大学 | Expandable and wave beam controllable directional sound wave transmitting device |
CN111818422A (en) * | 2020-07-03 | 2020-10-23 | 电子科技大学 | Fixed-point sound wave transmitting device based on parametric array principle |
CN111818422B (en) * | 2020-07-03 | 2021-10-26 | 电子科技大学 | Fixed-point sound wave transmitting device based on parametric array principle |
CN112601155A (en) * | 2020-12-10 | 2021-04-02 | 南京汉得利智能科技有限公司 | Method and system for digital parametric array loudspeaker |
Also Published As
Publication number | Publication date |
---|---|
CN102438192B (en) | 2014-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102438192B (en) | Audio parametric array speaker system and modulation method thereof | |
CN101790118A (en) | Audio-frequency directional loudspeaker system and signal processing method thereof | |
CN103167380B (en) | A kind of digitlization audio beam loudspeaker system | |
US10325584B2 (en) | Active noise cancelling device and method of actively cancelling acoustic noise | |
CN102932704A (en) | Audio emission chip, audio receiving chip and wireless microphone system | |
CN202374223U (en) | Fully digital audio amplification circuit for household active speakers | |
CN105323670A (en) | Terminal and directional audio signal sending method | |
CN111818422B (en) | Fixed-point sound wave transmitting device based on parametric array principle | |
CN101820564A (en) | Minitype multichannel audio frequency directional loudspeaker | |
CN101583064A (en) | Micro audio directional loudspeaker with three dimension soundeffect | |
CN101640831A (en) | Speaker array equipment and driving method thereof | |
CN102149031A (en) | Implementation method and system of mobile phone microphone, and mobile phone | |
CN111816155A (en) | Expandable and wave beam controllable directional sound wave transmitting device | |
CN204681595U (en) | Sonification system and apply the mobile communication equipment of described sonification system | |
EP1352509B1 (en) | Signal routing for reduced power consumption in a conferencing system | |
CN102932710B (en) | Method and device for bass compensation | |
CN106303118A (en) | Intelligent terminal realizes the method for microphone function, audio frequency playing method, equipment and system | |
CN104853279A (en) | Directional sound generating apparatus and method | |
CN102098608B (en) | Parametric acoustic array audio playback system and modulation method thereof | |
CN202455518U (en) | Bass sound box with dual sound outlets | |
CN105515682B (en) | The method and system realized transmitting using earphone interface, receive ultrasonic wave | |
CN213522345U (en) | Wireless stereo speaker based on bluetooth 5.0 technique | |
CN110226200A (en) | Signal processing apparatus, signal processing method and computer program | |
CN201878312U (en) | Sounder for realizing hybrid-transmission and separation of surround sound and super bass | |
CN210053549U (en) | Wireless loudspeaker sound box device with D-type power amplifier |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18 Co-patentee after: AAC TECHNOLOGIES (NANJING) Co.,Ltd. Patentee after: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Co-patentee after: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18 Co-patentee before: AAC Acoustic Technology Research Development (Nanjing) Co.,Ltd. Patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Co-patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20170527 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC TECHNOLOGIES (NANJING) Co.,Ltd. Patentee after: AAC TECHNOLOGIES Pte. Ltd. Co-patentee after: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18 Co-patentee before: AAC TECHNOLOGIES (NANJING) Co.,Ltd. Patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Co-patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20211215 |