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)
10/2005
10/27/2005US20050238177 Method and device for control of a unit for reproduction of an acoustic field
10/27/2005US20050237395 Information processing apparatus, imaging apparatus, information processing method, and program
10/26/2005EP1589754A2 Information processing apparatus, imaging apparatus, information processing method, and program
10/26/2005EP1588584A1 Apparatus and method for producing sound
10/26/2005CN1689070A Signal filtering
10/25/2005US6959220 Digital audio signal filtering mechanism and method
10/25/2005US6959096 Sound reproduction system
10/20/2005WO2005098826A1 Method, device, encoder apparatus, decoder apparatus and audio system
10/20/2005WO2005098825A1 Stereo coding and decoding methods and apparatuses thereof
10/20/2005WO2005098824A1 Multi-channel encoder
10/20/2005WO2005074320A3 Audio/video system
10/20/2005US20050232445 Use of voice-to-remaining audio (VRA) in consumer applications
10/20/2005US20050232433 Configurable filter for processing television audio signals
10/19/2005EP1586220A2 Method and device for controlling a reproduction unit using a multi-channel signal
10/19/2005CN1684551A Surround sound positioning tower system and method
10/18/2005US6956954 Surround-sound processing system
10/13/2005WO2005094529A2 Configurable filter for processing television audio signals
10/13/2005US20050226426 Parametric multi-channel audio representation
10/13/2005US20050226425 Multi-channel audio surround sound from front located loudspeakers
10/13/2005DE102004012085A1 Sound reproduction system, has loudspeaker units arranged in room at given place and designed in such manner that they possess essential flat frequency response at selected distance up to ears of listener
10/13/2005CA2560842A1 Configurable filter for processing television audio signals
10/12/2005EP1585368A2 Apparatus for creating sound image of moving sound source
10/12/2005CN1681358A Headphone with surround-sound effect
10/11/2005US6954538 Remote control apparatus and a receiver and an audio system
10/06/2005WO2005094125A1 Frequency-based coding of audio channels in parametric multi-channel coding systems
10/06/2005US20050222844 Method and apparatus for generating spatialized audio from non-three-dimensionally aware applications
10/06/2005US20050222841 System and method for providing interactive audio in a multi-channel audio environment
10/06/2005US20050220312 Audio signal processing circuit
10/06/2005US20050220308 Apparatus for creating sound image of moving sound source
10/06/2005DE10321980B4 Vorrichtung und Verfahren zum Berechnen eines diskreten Werts einer Komponente in einem Lautsprechersignal Device and method for calculating a discrete value of a component in a loudspeaker signal
10/05/2005CN1221895C Memory allocation for real-time audio processing
09/2005
09/29/2005WO2005091678A1 A method and system for processing sound signals
09/29/2005DE10215775B4 Verfahren zur räumlichen Darstellung von Tonquellen Method for the spatial representation of sound sources
09/28/2005EP1410687B1 Efficient and scalable parametric stereo coding for low bitrate applications
09/22/2005WO2005089018A1 Stereophonic reproducing system and stereophonic reproducing device
09/22/2005WO2005081576B1 Loudspeaker surround system
09/22/2005US20050207606 [earphone structure with a composite sound field]
09/22/2005US20050207582 Test apparatus, test method, and computer program
09/22/2005DE102004002532A1 Audio sound reproduction system used a frontal matrix wave field sythesis process to generate a realistic output
09/21/2005EP1578170A2 Test apparatus, test method, and computer program
09/21/2005EP1576847A1 Audio playback system and method for playing back an audio signal
09/21/2005EP1576602A1 Method and apparatus for mixing audio stream and information storage medium
09/21/2005CN1672464A Audio channel spatial translation
09/21/2005CN1671253A Test apparatus, test method, and computer program
09/15/2005WO2005086139A1 Multichannel audio coding
09/15/2005CA2556575A1 Multichannel audio coding
09/14/2005CN1669359A Audio coding
09/14/2005CN1669358A Audio coding
09/14/2005CN1669357A Signal processing apparatus, signal processing method, program and recording medium
09/13/2005US6944309 Headphone system
09/09/2005WO2005083684A1 Decoding scheme for variable block length signals
09/08/2005US20050195981 Frequency-based coding of channels in parametric multi-channel coding systems
09/07/2005EP1571885A1 Audio signal reproducing method and reproducing apparatus
09/07/2005EP1571883A1 Audio signal processing circuit
09/07/2005EP1571870A1 Array speaker equipped with projection screen
09/07/2005EP1570704A1 Multispeaker sound imaging system
09/07/2005EP1570703A2 Personalized surround sound headphone system
09/07/2005CN1666572A Signal processing
09/07/2005CN1666570A A stereo signal processing apparatus
09/01/2005WO2005081576A1 Loudspeaker surround system
09/01/2005US20050190928 Transmitting/receiving system, transmitting device, and device including speaker
08/2005
08/31/2005EP1568251A2 Method for describing the composition of audio signals
08/31/2005EP1568250A2 Method and apparatus for processing audio signals from a bitstream
08/30/2005US6937737 Multi-channel audio surround sound from front located loudspeakers
08/30/2005US6937733 Audio system with a phase adjustment circuit
08/25/2005WO2004068463A3 Method and device for controlling a reproduction unit using a multi-channel signal
08/25/2005US20050188012 Methods and systems for synchronizing visualizations with audio streams
08/25/2005US20050185810 Audio processing apparatus
08/23/2005US6934395 Surround sound field reproduction system and surround sound field reproduction method
08/18/2005WO2005076665A1 Blanker of common signals of a stereo source
08/18/2005US20050180579 Late reverberation-based synthesis of auditory scenes
08/18/2005US20050179701 Dynamic sound source and listener position based audio rendering
08/17/2005EP1565036A2 Late reverberation-based synthesis of auditory scenes
08/17/2005EP1565035A2 Dynamic sound source and listener position based audio rendering
08/17/2005CN1655651A Late reverberation-based auditory scenes
08/16/2005US6931370 System and method for providing interactive audio in a multi-channel audio environment
08/16/2005CA2197166C Sound spatialization system with customization process for implementation
08/11/2005WO2005074320A2 Audio/video system
08/11/2005US20050177360 Audio coding
08/11/2005US20050175197 Audio reproduction system and method for reproducing an audio signal
08/11/2005DE102005001395A1 Sound early field transformation for reproduction of recordings uses Huygens principle wave field synthesis and room data to reproduce recording room reflections
08/10/2005EP1562403A1 Audio signal processing method and processing device
08/10/2005CN1652638A Apparatus and method for downward mixing of VF data
08/10/2005CN1214690C 5-2-5 Matrix encoder and decoder system
08/10/2005CA2456373A1 Stereo source common-mode signal eliminator
08/09/2005US6928179 Audio processing apparatus
08/09/2005US6928169 Audio signal processing
08/04/2005US20050169488 Acoustic characteristic adjustment device
08/04/2005US20050169486 User controlled multi-channel audio conversion system
08/04/2005US20050169482 Audio spatial environment engine
08/04/2005DE102004004068A1 Control and loudspeaker setup for multimedia installation in room in building has CD recorder-player and other equipment connected to computer via amplifying input stage
08/03/2005EP1234485B1 Method and apparatus for deriving at least one audio signal from two or more input audio signals
08/03/2005CN1650528A Multi-channel downmixing device
08/03/2005CN1213556C Cinema system for treating audio signal in consumer applications and relative method
08/02/2005US6925426 Process for high fidelity sound recording and reproduction of musical sound
08/02/2005US6925186 Ambient sound audio system
07/2005
07/28/2005WO2005069274A1 Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
07/28/2005CA2554002A1 Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
07/27/2005EP1558061A2 Sound Feature Positioner
07/27/2005EP1558060A2 Vehicle audio system surround modes
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