Patents
Sitemap › H04 - Electric communication technique › H04S - Stereophonic systems › H04S 3 - Systems employing more than two channels, e.g. quadraphonic
Patents for H04S 3 - Systems employing more than two channels, e.g. quadraphonic (4,597)
03/2003
03/06/2003US20030044032 Audio reproducing device
03/06/2003US20030044030 Control device for mixing and positioning
03/06/2003US20030043051 Remote control apparatus and a receiver and an audio system
02/2003
02/27/2003WO2002009474A3 Stereo audio processing device
02/27/2003WO2001087015A3 Discrete multichannel audio with a backward compatible mix
02/27/2003US20030040822 Sound processing system using distortion limiting techniques
02/27/2003US20030039366 Sound processing system using spatial imaging techniques
02/27/2003US20030039365 Sound processing system with degraded signal optimization
02/20/2003US20030035556 Audio distribution system
02/20/2003US20030035553 Backwards-compatible perceptual coding of spatial cues
02/13/2003US20030031334 Sonic landscape system
02/13/2003US20030031332 Audio reproducing system
02/12/2003EP1283658A2 Multi channel audio reproduction system
02/06/2003WO2003010915A1 Network system and ouput device used in this system
02/06/2003US20030026441 Perceptual synthesis of auditory scenes
01/2003
01/29/2003EP0832519B1 Encoding apparatus for encoding a plurality of information signals
01/23/2003WO2003007656A1 Efficient and scalable parametric stereo coding for low bitrate applications
01/23/2003WO2002078396A8 System and method for automatically adjusting the sound and visual parameters of a home theatre system
01/23/2003WO2002043437A3 Wave field synthesys sound reproduction system using a distributed mode panel
01/23/2003US20030016830 Speaker system
01/21/2003CA2240592C Sound system
01/15/2003EP1275272A1 Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions
01/15/2003EP1275271A2 Multi-channel audio converter
01/15/2003CN1391782A Method for deriving at least three audio signals from two input audio signals
01/14/2003US6507659 Microphone apparatus for producing signals for surround reproduction
01/14/2003US6507658 Surround sound panner
01/09/2003WO2002053246A3 Motion transducer system
01/09/2003US20030009248 Digital audio signal filtering mechanism and method
01/09/2003US20030009247 Digital audio signal filtering mechanism and method
01/08/2003EP1274274A1 Headphone having several speakers
01/02/2003US20030002693 Audio signal processing
01/02/2003EP1272004A2 Audio signal processing
01/02/2003EP1269306A1 Spatialized audio system for use in a geographical environment
12/2002
12/24/2002US6498857 Method of synthesizing an audio signal
12/19/2002WO2002007481A3 Multi-channel stereo converter for deriving a stereo surround and/or audio centre signal
12/18/2002EP1267591A2 Sound signal playback machine and method thereof
12/18/2002EP1266469A1 Use of voice-to-remaining audio (vra) in consumer applications
12/17/2002US6496584 Multi-channel stereo converter for deriving a stereo surround and/or audio center signal
12/12/2002WO2002100128A1 Center channel enhancement of virtual sound images
12/12/2002WO2002099727A2 Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generator
12/12/2002WO2002078396A3 System and method for automatically adjusting the sound and visual parameters of a home theatre system
12/12/2002US20020186854 Sound signal playback machine and method thereof
12/11/2002EP1265457A2 Vehicle electroacoustical transducing
12/11/2002EP1264300A2 Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
12/05/2002WO2002098172A2 Method of generating a left modified and a right modified audio signal for a stereo system
12/05/2002WO2002098170A1 Vehicle-mounted stereophonic sound field reproducer
12/05/2002WO2002032208A3 Method for determining an acoustic environment situation, application of the method and hearing aid
12/05/2002US20020181727 Headphone having several speakers
12/05/2002US20020181718 Audio apparatus
12/05/2002US20020181717 Data-driven software architecture for digital sound processing and equalization
12/05/2002US20020181713 Audio apparatus
12/04/2002EP1263264A2 Audio apparatus
12/04/2002EP1263263A2 Audio apparatus
11/2002
11/28/2002WO2002085068A9 Sound processing
11/28/2002DE10125229A1 Audio system with virtual loudspeakers that are positioned using processor so that listener is at sweet spot
11/27/2002EP1260119A1 Multi-channel sound reproduction system for stereophonic signals
11/26/2002US6487535 Multi-channel audio encoder
11/21/2002WO2002093773A1 Parametric virtual speaker and surround-sound system
11/21/2002US20020172377 Methods and systems for synchronizing visualizations with audio streams
11/21/2002US20020172370 Surround sound field reproduction system and surround sound field reproduction method
11/21/2002CA2446645A1 Parametric virtual speaker and surround-sound system
11/20/2002EP1259097A2 Surround sound field reproduction system and surround sound field reproduction method
11/19/2002US6483925 Headphone having several speakers
11/14/2002WO2002091798A2 Data-driven software architecture for digital sound processing and equalization
11/06/2002EP1254588A2 A remote control apparatus and a receiver and an audio system
10/2002
10/31/2002WO2002052896A3 Multi-channel audio converter
10/31/2002US20020159611 Method and system for automatic reconfiguration of a multi-dimension sound system
10/31/2002US20020159605 Automatic sound field correcting device
10/31/2002US20020159603 Picked-up-sound reproducing method and apparatus
10/31/2002US20020159602 Automatic sound field correcting device
10/30/2002EP1253806A2 Automatic sound field correcting device
10/30/2002EP1253805A2 Automatic sound field correcting device
10/24/2002WO2002085068A2 Sound processing
10/24/2002US20020154783 Sound system and method of sound reproduction
10/24/2002DE10109004A1 Generating life-like audiovisual scenes by matching projections, acoustic phase space and smell distribution etc. to visual scene
10/23/2002CN1376013A Audio-frequency circular sound power management switchover
10/22/2002US6470087 Device for reproducing multi-channel audio by using two speakers and method therefor
10/10/2002US20020146139 Multi-channel speaker system integrated into a combination television stand and audio/video equipment cabinet
10/03/2002WO2002078396A2 System and method for automatically adjusting the sound and visual parameters of a home theatre system
10/03/2002WO2002078395A2 Method of reproducing multichannel sound using real and virtual speakers
10/03/2002WO2002078389A2 Method of deriving a head-related transfer function
10/03/2002WO2002078388A2 Method and apparatus to create a sound field
10/03/2002US20020141595 System and method for audio telepresence
10/03/2002CA2430656A1 System and method for automatically adjusting the sound parameters of a home theatre system
10/02/2002DE10113087A1 Structure for processing signals in a motor vehicle, has loudspeakers and signal processor fed with audio signal sent from the loudspeakers and then passed onto loudspeakers via amplifying unit
10/01/2002US6459797 Audio mixer
09/2002
09/26/2002US20020136414 System and method for automatically adjusting the sound and visual parameters of a home theatre system
09/19/2002US20020131611 `Audio surround sound power management switching
09/19/2002US20020131610 Device for sound-based generation of abstract images
09/18/2002EP1241922A2 Audio surround sound power management switching
09/18/2002EP1240805A2 Method and arrangement for recording and playing back sounds
09/18/2002CN1370386A Voice-to-remaining audio (VRA) interactive hearing aid & auxiliary equipment
09/12/2002US20020129151 System and method for enhanced streaming audio
09/11/2002EP1238570A2 System for generating sounds
09/11/2002EP0571638B1 Acoustic equipment and method of displaying operating thereof
09/10/2002US6449371 PC surround sound mixer
09/10/2002US6449368 Multidirectional audio decoding
09/06/2002WO2002069670A1 Headphone-use stereophonic device and voice signal processing program
08/2002
08/29/2002US20020118840 Multi-channel audio converter
08/28/2002EP1234485A1 Method and apparatus for deriving at least one audio signal from two or more input audio signals
1 ... 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46