| Patents for H04S 3 - Systems employing more than two channels, e.g. quadraphonic (4,597) |
|---|
| 07/27/2005 | EP1557072A2 Embedded data signaling |
| 07/27/2005 | CN1647582A Loudspeaker with GPS receiver |
| 07/27/2005 | CN1647157A Signal synthesizing |
| 07/27/2005 | CN1647156A Parametric multi-channel audio representation |
| 07/27/2005 | CN1647155A Parametric representation of spatial audio |
| 07/27/2005 | CN1212751C Circuit equipment for converting output of two sound channels into output of six sound channels |
| 07/21/2005 | WO2005067347A1 Speaker apparatus |
| 07/21/2005 | WO2005067341A1 Speaker apparatus |
| 07/21/2005 | US20050157894 Sound feature positioner |
| 07/21/2005 | US20050157883 Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal |
| 07/21/2005 | DE10360511A1 Wireless transmission device for surround sound stereo system, has rear crossover separating subwoofer signal from left and right surround signals, and sending subwoofer, left and right signals to respective speakers for playback |
| 07/21/2005 | DE10360470A1 Verfahren und Vorrichtung zum Demodulieren eines Empfangssignals Method and apparatus for demodulating a received signal |
| 07/21/2005 | DE10358141A1 Kopfhörer mit Raumklangerweiterung Headphones with Surround Expansion |
| 07/21/2005 | DE10328335B4 Wellenfeldsyntesevorrichtung und Verfahren zum Treiben eines Arrays von Lautsprechern Wellenfeldsyntesevorrichtung and method for driving an array of loudspeakers |
| 07/20/2005 | EP1554910A1 Dynamic binaural sound capture and reproduction |
| 07/20/2005 | EP1554716A1 Signal filtering |
| 07/20/2005 | CN1643982A Method and device for control of a unit for reproduction of an acoustic field |
| 07/20/2005 | CN1642363A Vehicle audio system surround modes |
| 07/20/2005 | CN1642362A Digital audio-frequency signal processing method and apparatus |
| 07/20/2005 | CN1211775C Method and apparatus for adapting primary content of audio and remaniing portion of audio content in digital audio production process |
| 07/19/2005 | US6920223 Method for deriving at least three audio signals from two input audio signals |
| 07/14/2005 | WO2005064991A1 Audio apparatus |
| 07/14/2005 | WO2005064986A1 Audio output apparatus |
| 07/14/2005 | WO2005036925A3 Compatible multi-channel coding/decoding |
| 07/14/2005 | WO2004089036A3 Outdoor loudspeaker with passive radiator |
| 07/14/2005 | US20050152565 System and method for control of audio field based on position of user |
| 07/14/2005 | US20050152562 Vehicle audio system surround modes |
| 07/14/2005 | DE10321986B4 Vorrichtung und Verfahren zum Pegel-Korrigieren in einem Wellenfeldsynthesesystem Apparatus and method for level correction in a wave field synthesis system |
| 07/13/2005 | EP1553804A2 Acoustic characteristic adjustment device |
| 07/13/2005 | EP1552724A1 Method for generating and consuming 3d audio scene with extended spatiality of sound source |
| 07/13/2005 | EP1552720A2 Method for simulating a movement by means of an acoustic reproduction device, and sound reproduction arrangement therefor |
| 07/13/2005 | CN1640194A User controlled multi-channel audio conversion system |
| 07/13/2005 | CN1638534A Surround sound positioning tower system and method |
| 07/13/2005 | CN1210993C Sound signal processing method, apparatus and system |
| 07/12/2005 | US6917686 Environmental reverberation processor |
| 07/07/2005 | WO2005062673A1 Systems and methods of spatial image enhancement of a sound source |
| 07/07/2005 | US20050149338 Ultrasonic speaker and audio signal playback control method for ultrasonic speaker |
| 07/07/2005 | US20050147265 Invertedly driven electrostatic speaker |
| 07/07/2005 | US20050147261 Head relational transfer function virtualizer |
| 07/07/2005 | US20050147257 Device and method for determining a reproduction position |
| 07/07/2005 | DE10355146A1 Vorrichtung und Verfahren zum Erzeugen eines Tieftonkanals Apparatus and method for generating a low-frequency channel |
| 07/06/2005 | EP1551205A1 Head relational transfer function virtualizer |
| 07/06/2005 | CN1636423A Multichannel echo canceller system using active audio matrix coefficients |
| 07/06/2005 | CN1636421A Multi-channel stereo converter for deriving a stereo surround and/or audio centre signal |
| 07/06/2005 | CN1636420A 紧凑的环绕声系统 Compact surround sound system |
| 07/05/2005 | US6914988 Audio reproducing device |
| 06/30/2005 | WO2005060307A1 Device and method for producing a low-frequency channel |
| 06/30/2005 | US20050141728 Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions |
| 06/30/2005 | US20050141724 Loudspeaker positions select infrastructure signal |
| 06/30/2005 | US20050141723 3D audio signal processing system using rigid sphere and method thereof |
| 06/30/2005 | US20050141722 Signal processing |
| 06/30/2005 | US20050141411 Method and arrangement for demodulating a received signal |
| 06/30/2005 | US20050141402 Multi-recording medium and storage medium |
| 06/29/2005 | EP1548683A2 Notification control device, system and method |
| 06/29/2005 | EP1547439A2 Bass management systems |
| 06/29/2005 | EP1547257A1 System and method for integral transference of acoustical events |
| 06/28/2005 | US6912501 Use of voice-to-remaining audio (VRA) in consumer applications |
| 06/23/2005 | US20050137861 Methods and systems for synchronizing visualizations with audio streams |
| 06/23/2005 | US20050137859 Sound characteristic measuring device, automatic sound field correcting device, sound characteristic measuring method and automatic sound field correcting method |
| 06/23/2005 | US20050135643 Apparatus and method of reproducing virtual sound |
| 06/23/2005 | US20050135634 Wireless transmission device of surround sound stereo system |
| 06/23/2005 | US20050135631 Automatic sound field correcting device and computer program therefor |
| 06/22/2005 | EP1545156A2 Measurement device for measuring the delay time in an acoustic environment and computer program therefor |
| 06/22/2005 | EP1545155A2 Automatic sound field correcting device and computer program therefor |
| 06/22/2005 | EP1545154A2 A virtual surround sound device |
| 06/22/2005 | CN1630435A Wireless transmission device for surround sound |
| 06/22/2005 | CN1630434A Apparatus and method of reproducing virtual sound |
| 06/16/2005 | US20050132406 Echo channel for home entertainment systems |
| 06/16/2005 | US20050131562 Apparatus and method for reproducing three dimensional stereo sound for communication terminal |
| 06/16/2005 | US20050129258 Narrow profile speaker configurations and systems |
| 06/16/2005 | US20050129255 Signal delay time measurement device and computer program therefor |
| 06/16/2005 | US20050129254 Location aware directed audio |
| 06/16/2005 | US20050129249 Method for improving spatial perception in virtual surround |
| 06/16/2005 | US20050129248 Systems and methods of spatial image enhancement of a sound source |
| 06/15/2005 | EP1542502A2 Headphone with surround-sound effect |
| 06/14/2005 | CA2167523C Multi-channel transmitter/receiver system providing matrix-decoding compatible signals |
| 06/08/2005 | EP1538876A2 Equipment for collection and measurement of quadraphonic sound data and metadata as well as a corresponding recording procedure |
| 06/08/2005 | CN1625920A Audio apparatus and its reproduction program |
| 06/08/2005 | CN1625303A Output amplitude regulator of multi-channel audio frequency |
| 06/08/2005 | CN1625302A Sound field reproduction apparatus and sound field space reproduction system |
| 06/08/2005 | CN1625185A Apparatus and method for reproducing three dimensional stereo sound for communication terminal |
| 06/08/2005 | CN1624759A Dynamic range controlled mixing sound input device and method |
| 06/08/2005 | CN1205753C Integrated audio mixer |
| 06/07/2005 | US6904152 Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions |
| 06/02/2005 | WO2005051041A1 Array speaker device |
| 06/02/2005 | US20050117753 Sound field reproduction apparatus and sound field space reproduction system |
| 06/01/2005 | CN1622694A Method and equipment for playing multichannel digital sound |
| 06/01/2005 | CN1204692C Encoding apparatus for encoding a plurality of information signals |
| 05/31/2005 | US6901148 Automatic sound field correcting device |
| 05/25/2005 | EP1534047A2 Sound characteristic measuring device and method, automatic sound field correcting device and method |
| 05/25/2005 | CN1620196A Sound reproducing apparatus and sound reproducing method |
| 05/25/2005 | CN1620190A Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system |
| 05/19/2005 | WO2005046287A1 Multi-channel audio surround sound from front located loudspeakers |
| 05/19/2005 | US20050105442 Apparatus and method for generating, storing, or editing an audio representation of an audio scene |
| 05/19/2005 | CA2543614A1 Multi-channel audio surround sound from front located loudspeakers |
| 05/18/2005 | EP1531609A1 Apparatus and method for reproducing three dimensional stereo sound for communication terminal |
| 05/18/2005 | CN1202676C Method and device for encoding transferring and decoding non-PCM bitstream between digital versatile disc device and multi-channel reproduction apparatus |
| 05/12/2005 | US20050100180 Audio system, audio apparatus, and method for performing audio signal output processing |
| 05/11/2005 | CN1201632C Voice-to-remaining audio (VRA) interactive hearing aid & auxiliary equipment |
| 05/04/2005 | EP1527655A2 Audio channel spatial translation |