H04R 27 - Public address systems

Patents for H04R 27 - Public address systems (2,454)
08/2004
08/12/2004	US20040157555 Multiple channel wireless communication system
08/11/2004	EP1444215A1 Novel 1,2,4-thiadiazolium derivatives as melanocortin receptor modulators
08/11/2004	CN1520672A Transmitting device and method
08/05/2004	WO2004043032A3 Method and device for the synchronised restitution of data flows
07/2004
07/29/2004	US20040147273 Vehicle intercom controller
07/29/2004	US20040145258 Electro-mechanical transducer
07/21/2004	CN1158902C Method for enjoying music by tactile sense
07/20/2004	US6766025 Intelligent speaker training using microphone feedback and pre-loaded templates
07/07/2004	CN1511431A Communications system
07/06/2004	US6760690 Background noise eliminating apparatus and method, and storage medium storing program realizing such method
07/01/2004	WO2002082860A8 Method and system for selectively broadcasting data in a space, and equipment used in said system
06/2004
06/30/2004	CN2622977Y Broadcast public address receiver
06/17/2004	US20040117521 Sounding apparatus and personal computer system having sounding apparatus
06/10/2004	WO2004049758A1 Audio distribution system
06/10/2004	US20040109570 System and method for selective signal cancellation for multiple-listener audio applications
06/02/2004	EP1424873A2 Hearing system
06/02/2004	CN1501600A Portable throat-protective and speaking-assistant machine
05/2004
05/27/2004	WO2004044730A1 Multimedia/communication system comprising satellite stations
05/27/2004	US20040101146 Personalized information distribution system
05/27/2004	DE10252456A1 Multimedia/communications system e.g. for hands-free telephone use in vehicles, includes device for controlling acoustic output via loudspeakers of fixed satellite stations
05/21/2004	WO2004043114A1 Acoustic system capable of describing and modifying parameters of loudspeaker
05/21/2004	WO2004043032A2 Method and device for the synchronised restitution of data flows
05/21/2004	WO2002082860A3 Method and system for selectively broadcasting data in a space, and equipment used in said system
05/19/2004	DE10251209A1 Intelligent wireless microphone system, analyses speech signals and carries out appropriate control function on recognizing spoken concepts, words or content
05/13/2004	WO2003037035A9 Sound masking system
05/13/2004	US20040091122 Communications system
05/12/2004	EP1060592A4 Teleconferencing method and apparatus with three-dimensional sound positioning
05/06/2004	US20040088092 Audio-visual system for vehicle use
04/2004
04/28/2004	EP1413168A2 Sound reinforcement system having an echo suppressor and loudspeaker beamformer
04/28/2004	EP1413167A2 Sound reinforcement system having an multi microphone echo suppressor as post processor
04/22/2004	WO2003096741A3 Audio network distribution system
04/21/2004	EP1410679A2 Supplemental audio content system with wireless communication for a cinema and related methods
04/21/2004	CN1147207C Loudspeakers
04/15/2004	US20040071059 Multi-channel reproducing apparatus and multi-channel reproducing loudspeaker apparatus
04/15/2004	DE19846821B4 Audiokommunikationssystem Audio communication system
04/08/2004	US20040066792 Signal switching apparatus and program
04/07/2004	EP1405484A1 Transmitting device and method
04/01/2004	WO2004028051A1 Mechanism and method for audio system synchronization
04/01/2004	US20040062402 Audio reproduction apparatus
03/2004
03/25/2004	WO2004025989A1 Calibrating a first and a second microphone
03/18/2004	US20040052393 Clear sound side fill center fill
02/2004
02/26/2004	US20040037434 Method and system for using spatial metaphor to organize natural language in spoken user interfaces
02/25/2004	CN1477900A Sound effect treatment method for microphone and its device
02/18/2004	CN2604030Y Wireless sound amplifying system
02/10/2004	US6690802 Adjustable speaker box for the sports bar of a vehicle
02/05/2004	WO2003086007A3 Audio distribution
02/05/2004	US20040022396 Drive-in movie theater with short range sound system
02/04/2004	CN2602572Y Hand-held multifunctional loudspeaker
02/04/2004	CN1472986A 3D8 stereo amplifying systems
01/2004
01/28/2004	CN1471285A Hand-free receiver audio amplifying device
01/27/2004	USRE38405 Enhanced concert audio system
01/22/2004	US20040013279 Portable telephone attachment for person hard of hearing
01/07/2004	EP1377205A1 Personalized information distribution system
01/06/2004	US6675125 Statistics generator system and method
01/02/2004	EP1377114A2 Multi-channel reproducing apparatus and multi-channel reproducing loudspeaker apparatus
12/2003
12/18/2003	WO2003105525A1 P.a. system installation method
12/17/2003	EP1372355A1 Speech distribution system
12/17/2003	EP1371264A1 Method and device for operating a sound system
12/03/2003	EP1366637A2 A communications system
11/2003
11/27/2003	US20030220705 Audio distribution system with remote control
11/27/2003	US20030219133 Sound masking system
11/20/2003	WO2003096741A2 Audio network distribution system
11/20/2003	CA2485104A1 Audio network distribution system
11/13/2003	US20030210796 Wired, wireless, infrared, and powerline audio entertainment systems
11/04/2003	US6643376 Method and apparatus for individual control of audio to loudspeakers located from a central control
10/2003
10/29/2003	CN1452433A Design of automated sound system
10/23/2003	US20030198353 Automated sound system designing
10/22/2003	EP1355514A2 Automated sound system designing
10/22/2003	CN2582311Y Instrument for measuring tone loudness
10/16/2003	WO2003086007A2 Audio distribution
10/16/2003	US20030194096 Public address system and method for an urban transit vehicle
10/02/2003	WO2003081801A1 Parametric ring emitter
10/02/2003	WO2003013041A3 Device and method for transmitting, receiving and processing audio control signals in information systems
10/02/2003	US20030185404 Phased array sound system
10/02/2003	US20030185401 Portable motion-activated electrical device that plays pre-recorded sounds, music, or noise
09/2003
09/17/2003	EP1004222A4 A distributed stereo system
09/12/2003	WO2003003788A3 Supplemental audio content system with wireless communication for a cinema and related methods
09/11/2003	US20030169177 Method and apparatus for boosting an audible signal in a notification system
09/10/2003	CN2572705Y Wide range audio-amplifier
09/10/2003	CN1442003A Method and means for receiving digital transmission comprising plurality of digital audio signals and for simultaneous reproduction of these signals as analog audio programmes
08/2003
08/28/2003	US20030162819 Novel 1,2,4-thiadiazolium derivatives as melanocortin receptor modulators
08/27/2003	EP1247428B1 Speech distribution system
08/07/2003	US20030147542 Outer mirror and interphone for a vehicle
07/2003
07/31/2003	US20030144848 Architectural sound enhancement with pre-filtered masking sound
07/31/2003	US20030144847 Architectural sound enhancement with radiator response matching EQ
07/31/2003	US20030142833 Architectural sound enhancement with test tone diagnostics
07/31/2003	US20030142814 Architectural sound enhancement with DTMF control
07/30/2003	CN1116737C User adjustable volume control that accommodates hearing
07/24/2003	US20030138108 Audio conferencing with three-dimensional audio encoding
07/16/2003	CN2561175Y Telephone loud-speaker
07/10/2003	US20030128850 Loudspeaker broadcasting system and loudspeaker broadcasting apparatus
07/03/2003	WO2003055112A1 Microphone apparatus built in computer network
06/2003
06/19/2003	US20030112088 Compander architecture and methods
06/18/2003	CN2556868Y External hung loud-speaker of handset
06/18/2003	CN2556741Y Study aid machine
06/12/2003	US20030108208 Method and device for comparing signals to control transducers and transducer control system
06/05/2003	WO2003010995A3 Sound reinforcement system having an multi microphone echo suppressor as post processor
06/04/2003	EP1316931A1 Acoustic device for warning detector
06/04/2003	CN1422467A Use of voice-to-remaining audio (VRA) in consumer applications
05/2003
05/30/2003	WO2003010996A3 Sound reinforcement system having an echo suppressor and loudspeaker beamformer

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