| Patents for H04R 27 - Public address systems (2,454) |
|---|
| 06/03/2009 | CN201252645Y Novel wireless sound box |
| 06/03/2009 | CN201252644Y Portable personal stereo |
| 06/03/2009 | CN201252643Y Improved solar wireless audio system |
| 06/03/2009 | CN201252642Y Station amplifier |
| 05/27/2009 | CN201248134Y Wireless terminal with hanging external-laying type acoustic enclosure |
| 05/27/2009 | CN201247494Y Intercommunication device for cipher peep-proof window |
| 05/20/2009 | CN201243375Y Ultrathin folding type acoustic enclosure |
| 05/06/2009 | CN201234348Y Symmetrical hemispherical active multimedia loudspeaker box |
| 05/06/2009 | CN201234347Y Multifunctional speaker |
| 05/06/2009 | CN201234346Y Combined loudspeaker box suitable for small sized flow amplifying situation |
| 05/05/2009 | US7529670 Automatic speech recognition system for people with speech-affecting disabilities |
| 04/30/2009 | WO2006050754A3 Public address system |
| 04/29/2009 | CN101422052A Public address system |
| 04/29/2009 | CN100484177C Stereo microphone processing for teleconferencing |
| 04/22/2009 | EP2050309A2 Method and apparatus for creating a multi-dimensional communication space for use in a binaural audio system |
| 04/22/2009 | CN201226596Y Multifunctional voice case for internet bar |
| 04/15/2009 | CN201222805Y Combined acoustic enclosure |
| 04/09/2009 | WO2009045696A1 Systems and methods for delivering directional audio and personalized emergency alerts via addressable speakers |
| 04/09/2009 | US20090092263 Systems and Methods for Delivering Directional Audio and Personalized Emergency Alerts Via Addressable Speakers |
| 04/08/2009 | EP1504367A4 Audio network distribution system |
| 04/08/2009 | CN201219306Y Sound equipment system and audio broadcasting equipment |
| 04/02/2009 | WO2009039597A1 Audio equipment |
| 04/01/2009 | CN201216024Y Microphone set device having chairman function |
| 03/19/2009 | DE202007015371U1 Lautsprecher Speaker |
| 03/18/2009 | CN201210750Y Improved solar energy wireless sound system |
| 03/18/2009 | CN201210749Y Novel solar energy wireless sound system |
| 03/18/2009 | CN201210748Y Bumper type acoustic apparatus for motorcycle |
| 03/18/2009 | CN201210747Y Resonant bass speaker |
| 03/18/2009 | CN201210746Y Integrated high sound quality sound box |
| 03/18/2009 | CN201210742Y Air pressure balance type sound box |
| 03/11/2009 | CN201207733Y Waist-hanging loudspeaker |
| 03/10/2009 | CA2408802C Generating separate analog audio programs from a digital link |
| 03/05/2009 | US20090060221 Computer installed stereo PA amplifier card |
| 03/04/2009 | EP2031903A2 Audio signal transmitting apparatus, audio signal receiving apparatus, audio signal transmission system, audio signal transmission method, and program |
| 03/04/2009 | CN201204696Y Play equipment with USB interface audio player |
| 03/04/2009 | CN201204062Y Portable wireless megaphone with data input interface |
| 03/04/2009 | CN101377961A Rack for fixing handhold electronic device for automobile |
| 02/26/2009 | WO2009025705A1 Network audio processor |
| 02/26/2009 | CA2696507A1 Network audio processor |
| 02/19/2009 | WO2009022278A1 An audio reproduction system comprising narrow and wide directivity loudspeakers |
| 02/18/2009 | EP2026329A1 Speech situation data creating device, speech situation visualizing device, speech situation data editing device, speech data reproducing device, and speech communication system |
| 02/18/2009 | CN201197191Y Magnesium alloy one-piece casting loudspeaker box |
| 02/17/2009 | US7492913 Location aware directed audio |
| 02/11/2009 | CN201194431Y Horn construction |
| 02/10/2009 | CA2464731C Sound masking system |
| 02/04/2009 | CN201191511Y Desk type Chinese display digital acoustic |
| 02/04/2009 | CN201191406Y Vehicle-mounted multiple channel acoustics |
| 01/28/2009 | CN201187161Y Upward movie hall |
| 01/27/2009 | US7483541 Digital mixer |
| 01/27/2009 | US7483538 Wireless and wired speaker hub for a home theater system |
| 01/21/2009 | EP1872620B1 Apparatus and method for controlling a plurality of loudspeakers by means of a graphic user interface |
| 01/21/2009 | EP1037501B1 Public addressing system |
| 01/21/2009 | CN201185481Y Video voice chat numeral acoustic enclosure |
| 01/21/2009 | CN100455143C Realplayer |
| 01/08/2009 | WO2009005481A1 An announcing system that starts up by motion sensing, triggering, touching or by sound |
| 01/07/2009 | EP0976208B1 Acoustic feedback elimination using adaptive notch filter algorithm |
| 01/07/2009 | CN201178412Y Vehicle-mounted charging type radio microphone |
| 12/31/2008 | EP2009785A2 Method and apparatus for providing end user adjustment capability that accommodates hearing impaired and non-hearing impaired listener preferences |
| 12/31/2008 | CN201174783Y Rotary loudspeaker box |
| 12/31/2008 | CN201174782Y Flared loudspeaker box |
| 12/31/2008 | CN101335578A Mixing system |
| 12/30/2008 | US7471803 Integrated electro acoustic equipment with portable compact construction for sound applications |
| 12/24/2008 | DE102008017507A1 Loud speaker group for use in e.g. large halls, has two guide units placed above and below snap-in pin, where units limit channel above and below snap-in pin, and function as guides for connector when received in channel |
| 12/24/2008 | CN201171236Y Special-shaped acoustic enclosure |
| 12/24/2008 | CN201171235Y Wireless charging type broadcast acoustic enclosure |
| 12/23/2008 | US7469052 Portable sound system, apparatus, and method |
| 12/17/2008 | CN201166870Y Anti-theft device for automotive acoustics |
| 12/17/2008 | CN101325821A Method for making wireless active around acoustic enclosure |
| 12/11/2008 | WO2008047089A3 Speaker configuration |
| 12/03/2008 | EP1998477A1 Personal listening device |
| 12/03/2008 | EP1996861A2 Lighting and sound reproduction |
| 11/27/2008 | WO2008143530A1 Data switch |
| 11/26/2008 | EP1600041B1 Audio distribution system |
| 11/26/2008 | CN201156767Y Built-in water-proof loudspeaker box for mobile phone |
| 11/20/2008 | US20080285774 Howling Suppression Device, Program, Integrated Circuit, and Howling Suppression Method |
| 11/19/2008 | CN201153326Y Sound box capable of deforming by rotating about axis |
| 11/18/2008 | US7454029 Loudspeaker array |
| 11/13/2008 | US20080279410 Directional hearing enhancement systems |
| 11/12/2008 | CN100433938C Sound effect treatment method for microphone and its device |
| 11/05/2008 | CN201146601Y Horn loudspeaker box with flexible loudspeaker |
| 10/30/2008 | WO2008036992A3 Method and measuring device for monitoring loudspeaker systems |
| 10/29/2008 | CN201142759Y Loudspeaker |
| 10/29/2008 | CN201142704Y Hands-free audio device of vehicle mounted multimedia |
| 10/22/2008 | CN201138867Y Active acoustics in linear array |
| 10/16/2008 | WO2008091367A3 Method and apparatus for creating a multi-dimensional communication space for use in a binaural audio system |
| 10/15/2008 | CN101287307A Loudspeaker of electric powered steering type |
| 10/14/2008 | US7436971 Mixing signal-path setting apparatus and program |
| 10/08/2008 | CN201131057Y Wireless sound system |
| 10/08/2008 | CN201130933Y Wireless acoustic enclosure |
| 10/08/2008 | CN101282595A Portable deformation acoustic enclosure |
| 10/07/2008 | US7433821 Methods and systems for intelligibility measurement of audio announcement systems |
| 10/01/2008 | CN100422164C Novel 1,2,4-thiadiazolium derivatives as melanocortin receptor modulators |
| 09/25/2008 | WO2008113137A1 Bilateral input for auditory prostheses |
| 09/24/2008 | EP1266469B1 Use of voice-to-remaining audio (vra) in consumer applications |
| 09/24/2008 | CN101273616A Method and apparatus for multiparty collaboration enhancement |
| 09/23/2008 | US7428311 Method and apparatus for boosting an audible signal in a notification system |
| 09/17/2008 | CN201118984Y 一种无线防水音箱 A wireless waterproof speaker |
| 09/17/2008 | CN201118983Y 一种无线音箱 A wireless speaker |
| 09/17/2008 | CN201118982Y A wireless connection combined sound box |
| 09/17/2008 | CN201118955Y A sound amplifier with recording function |