| Patents for H04R 27 - Public address systems (2,454) |
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| 06/27/2012 | CN202285433U 一种多功能组合音响 A versatile music center |
| 06/26/2012 | US8208970 Directional communication systems |
| 06/26/2012 | US8208649 Methods and systems for robust approximations of impulse responses in multichannel audio-communication systems |
| 06/20/2012 | CN1784926B Array speaker system |
| 06/20/2012 | CN101667876B Signal transmission apparatus and method |
| 06/19/2012 | US8204249 Methods and systems for reducing acoustic echoes in multichannel audio-communication systems |
| 06/18/2012 | DE202012004810U1 Portables Lautsprechergehäuse Portable speaker cabinet |
| 06/13/2012 | EP1962547B1 Teleconference device |
| 06/13/2012 | CN102497613A Dual-channel real-time voice output method for amplifying classroom voices |
| 06/12/2012 | US8199927 Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter |
| 06/06/2012 | CN202269015U 一种音乐播放器 A musical player |
| 06/06/2012 | CN101572851B Magnesium alloy integrally cast sound box and manufacturing method thereof |
| 05/30/2012 | EP1540987B1 Public address system tuning method |
| 05/30/2012 | CN202261795U Multifunctional wall picture audio appliance |
| 05/30/2012 | CN202261794U Music center of mobile phone |
| 05/30/2012 | CN202261793U Base-type combined sound box with digital video playing function |
| 05/30/2012 | CN202258331U Small portable sound box capable of automatically switching playing modes |
| 05/30/2012 | CN101562771B Rotatable combination sound box |
| 05/29/2012 | US8190438 Targeted audio in multi-dimensional space |
| 05/24/2012 | WO2012066265A1 Spectrum correction system intended in particular for an auditorium |
| 05/23/2012 | CN202231864U Multi-functional combination audio |
| 05/23/2012 | CN202231729U Broadcasting system for ships |
| 05/23/2012 | CN102469402A 音频系统 Audio Systems |
| 05/23/2012 | CN101287307B Loudspeaker of electric powered steering type |
| 05/17/2012 | US20120121104 Wired, wireless, infrared, and powerline audio entertainment systems |
| 05/16/2012 | EP2452509A1 Coupling system for coupling loudspeaker housings, loudspeaker housing and method for hoisting loudspeaker housings |
| 05/16/2012 | DE202012100945U1 Lautsprecherbox und Verbundaufstellung Speaker and composite formation, |
| 05/16/2012 | CN1939085B Integrated electro acoustic equipment with portable compact construction for sound applications |
| 05/15/2012 | CA2656766C Method and apparatus for creating a multi-dimensional communication space for use in a binaural audio system |
| 05/10/2012 | WO2011128462A3 Method for providing distant support to a plurality of personal hearing system users and system for implementing such a method |
| 05/09/2012 | CN202218400U Horn-shaped coaxial sound amplifying system |
| 05/09/2012 | CN202218399U Dual-purpose computer loudspeaker box |
| 05/09/2012 | CN102448005A Audio extender |
| 05/08/2012 | US8175297 Ad hoc sensor arrays |
| 05/02/2012 | CN102436817A Method and device for frequency compression with harmonic correction |
| 05/01/2012 | US8170884 Use of voice-to-remaining audio (VRA) in consumer applications |
| 05/01/2012 | US8170193 Spatial sound conference system and method |
| 04/26/2012 | DE102010049204A1 Verfahren und Anordnung zur Optimierung der Raumparameter Beschallung, Beleuchtung und Klimatisierung Method and apparatus for optimizing the parameter space sound, lighting and air-conditioning |
| 04/25/2012 | EP2445232A1 Method and assembly for optimising the room parameters of exposure to sonic waves, lighting and air conditioning |
| 04/25/2012 | CN202206544U 通用型深耳道式助听器 Universal-canal hearing aid |
| 04/25/2012 | CN202206543U 一种具有显示紫外线指数功能的便携式多媒体小音箱 UV index having a display function portable multimedia mini speaker |
| 04/25/2012 | CN202206542U 一种可挂墙的音响 One kind can be wall-mounted audio |
| 04/25/2012 | CN202206515U Sound amplifying seat with sound amplifying function |
| 04/24/2012 | US8165334 Speaker system and speaker cluster system |
| 04/18/2012 | EP2441242A1 Conference system |
| 04/18/2012 | EP1715717B1 Moving object equipped with ultra-directional speaker |
| 04/18/2012 | CN102421055A 无线数字遥控音箱装置 Wireless digital remote speaker device |
| 04/18/2012 | CN102421054A 多声道显示器上空间音频配置的方法和设备 Method and apparatus for multi-channel audio configuration of the display space |
| 04/17/2012 | US8160734 Changing time intervals of the occurence of audio information from local and remote sites |
| 04/11/2012 | CN202190404U 蓝牙音响 Bluetooth Audio |
| 04/11/2012 | CN202190403U 一种竹制简易扩音器 One kind of bamboo simple megaphone |
| 04/11/2012 | CN202190402U 带有通话功能的防爆音箱 Ex speaker with a call feature |
| 04/11/2012 | CN102413412A 具有闭塞抑制和次声能量控制的助听器 Having occlusion suppression and infrasound energy control hearing aids |
| 04/11/2012 | CN102413411A 一种便携式扩音机 A portable megaphone |
| 04/10/2012 | US8155362 Wireless listening system |
| 04/10/2012 | US8155339 Air-droppable loudspeaker |
| 04/04/2012 | CN202183870U Speaker capable of providing wireless charging for portable electrical appliance |
| 04/04/2012 | CN202183869U 实用功放 Practical Amplifier |
| 04/04/2012 | CN102404131A Communication terminal, communication management system, communication system, and sound input part registering method |
| 03/28/2012 | EP2434782A2 Method and apparatus for creating a multi-dimensional communication space for use in a binaural audio system |
| 03/22/2012 | WO2012034307A1 Portable solar sound box |
| 03/21/2012 | CN202172484U 水舞音响 Water Dance Sound |
| 03/15/2012 | WO2012031429A1 Separable solar energy sound box |
| 03/14/2012 | CN202168184U 具有粘贴功能的无线扬声器 Paste function has wireless speakers |
| 03/07/2012 | EP2426955A1 Volume control terminal apparatus and volume control method |
| 03/07/2012 | CN202160278U 应急多功能自动定位报警数码电源音箱 Emergency power multifunction digital alarm automatically positioned speakers |
| 03/06/2012 | US8131390 Network speaker for an audio network distribution system |
| 02/29/2012 | EP2424276A2 Audio transmission device for cooperation with a hearing device comprising a telecoil for use in an elevator |
| 02/29/2012 | CN202153780U 便携式组合音响 Portable music center |
| 02/22/2012 | CN202150938U 太阳能音乐系统 Solar Music System |
| 02/22/2012 | CN202150244U 一种竖屏联网广告机 One kind of portrait networking advertising |
| 02/15/2012 | EP2418874A1 Apparatus and method of audio reproduction |
| 02/15/2012 | CN102355622A Synchronous external-playing system and application device thereof |
| 02/14/2012 | US8116473 Output phase modulation entrainment containment for digital filters |
| 02/08/2012 | EP2416593A1 Method for indoor communication |
| 02/07/2012 | US8111840 Echo reduction system |
| 02/07/2012 | US8111837 Data-driven media management within an electronic device |
| 02/01/2012 | CN202135321U 功放机 Amplifier |
| 02/01/2012 | CN102340728A Loudspeaker box arrangement method using linear array loudspeaker boxes for sound reinforcement in stadium |
| 01/25/2012 | EP2410763A1 Howling canceller |
| 01/25/2012 | CN202127508U Audio emitter |
| 01/24/2012 | US8103009 Wired, wireless, infrared, and powerline audio entertainment systems |
| 01/18/2012 | CN202121779U Public address set based on Bluetooth |
| 01/17/2012 | US8098841 Sound field controlling apparatus |
| 01/11/2012 | CN202111856U Multifunctional vehicle-mounted Bluetooth speaker system |
| 01/11/2012 | CN102316405A Microphone assembly for use with an aftermarket telematics unit |
| 01/11/2012 | CN102312532A Awning |
| 01/05/2012 | WO2012001419A1 Apparatus for radiating an audio signal |
| 01/04/2012 | CN202103851U Navigator audio frequency and bluetooth conversation realization circuit |
| 01/04/2012 | CN202103850U Bluetooth voice module applied to simulative amplification system |
| 01/04/2012 | CN202102667U Exit-indicating lamp capable of increasing broadcasting range |
| 01/04/2012 | CN102308597A Conference microphone system |
| 01/03/2012 | CA2540393C Addressable amplified speaker assembly and method for addressing the same |
| 12/28/2011 | CN202095091U 一种智能功放模块的安装结构 An intelligent power amplifier module mounting structure of |
| 12/27/2011 | US8086277 Transmitter of wireless microphone, receiver for wireless microphone, portable information communication device, and wireless microphone communication system |
| 12/27/2011 | US8085967 Reversible speaker grill attachment |
| 12/27/2011 | US8085947 Multi-channel echo compensation system |
| 12/27/2011 | US8085943 Noise extractor system and method |
| 12/21/2011 | EP2398255A1 Simultaneous control system for lighting and audio devices |
| 12/21/2011 | CN202085307U 便携式多媒体扩音器 Portable multimedia loudspeakers |