| Patents for H04S 5 - Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation (2,758) |
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| 03/07/2002 | WO2002019766A2 System for generating sounds |
| 03/06/2002 | EP1183911A2 Virtual multichannel speaker system |
| 02/28/2002 | WO2001047319A3 Method and arrangement for recording and playing back sounds |
| 02/28/2002 | US20020025047 System for generating sounds |
| 02/21/2002 | WO2002015641A2 Surround sound system |
| 02/21/2002 | WO2002015637A1 Method and system for recording and reproduction of binaural sound |
| 02/21/2002 | CA2419604A1 Surround sound system |
| 01/31/2002 | WO2002009474A2 Stereo audio processing device |
| 01/31/2002 | WO2001067814A3 System and method for optimization of three-dimensional audio |
| 01/31/2002 | US20020013698 Use of voice-to-remaining audio (VRA) in consumer applications |
| 01/31/2002 | US20020012437 Audio reproducing apparatus |
| 01/30/2002 | EP1176594A1 Audio reproducing apparatus |
| 01/29/2002 | US6343130 Stereophonic sound processing system |
| 01/24/2002 | WO2002007481A2 Multi-channel stereo converter for deriving a stereo surround and/or audio centre signal |
| 01/24/2002 | US20020009201 Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients |
| 01/17/2002 | WO2002005588A2 Power amplification for parametric loudspeakers |
| 01/17/2002 | WO2001033905A3 System and method for providing interactive audio in a multi-channel audio environment |
| 01/17/2002 | US20020006206 Center channel enhancement of virtual sound images |
| 01/17/2002 | CA2414491A1 Power amplification for parametric loudspeakers |
| 01/02/2002 | CN1329810A Apparatus and method for synthesizing pseudo-stereophonic outputs from monophonic input |
| 12/27/2001 | US20010055398 Real time audio spatialisation system with high level control |
| 12/27/2001 | US20010055397 Parametric virtual speaker and surround-sound system |
| 12/20/2001 | US20010053231 Audio speaker system for personal computer |
| 12/13/2001 | WO2001095669A2 A remote control apparatus and a receiver and an audio system |
| 12/11/2001 | CA2266324C Multichannel spectral mapping audio apparatus and method |
| 11/28/2001 | CN1324526A Method and device for developing a virtual speaker distant from the sound source |
| 11/28/2001 | CN1075653C Audio signal decoding apparatus and method for disk driving system |
| 11/15/2001 | WO2001087015A2 Discrete multichannel audio with a backward compatible mix |
| 11/15/2001 | WO2001019138A3 Method and apparatus for generating a second audio signal from a first audio signal |
| 11/15/2001 | US20010041476 Connector, multi-channel audio system, electronic apparatus, and cable for connection |
| 10/30/2001 | US6311155 Use of voice-to-remaining audio (VRA) in consumer applications |
| 10/25/2001 | WO2001078486A2 A method of audio signal processing for a loudspeaker located close to an ear |
| 10/17/2001 | EP1146775A2 Digital wireless premises audio system and method of operation thereof |
| 09/20/2001 | US20010022842 Method, apparatus and storage medium for adjusting the phase of sound from multiple speaker units |
| 09/19/2001 | EP1134724A2 Real time audio spatialisation system with high level control |
| 09/18/2001 | US6292570 Surround sound |
| 09/13/2001 | WO2001067814A2 System and method for optimization of three-dimensional audio |
| 09/13/2001 | CA2401986A1 System and method for optimization of three-dimensional audio |
| 09/12/2001 | CN1312602A Connector, multi-path audio-frequency system, electronic apparatus and cable for connection |
| 08/29/2001 | EP1127476A1 Point source speaker system |
| 08/29/2001 | EP0845173B1 Circuit arrangement for influencing the frequency response of a digital audio signal |
| 08/23/2001 | WO2001062045A1 Multi-channel sound reproduction system for stereophonic signals |
| 08/22/2001 | EP1125474A1 Pc surround sound circuit |
| 08/16/2001 | US20010014160 Sound field correction circuit |
| 08/09/2001 | WO2001058064A1 Use of voice-to-remaining audio (vra) in consumer applications |
| 08/09/2001 | US20010012368 Stereophonic sound processing system |
| 08/09/2001 | CA2399495A1 Use of voice-to-remaining audio (vra) in consumer applications |
| 08/08/2001 | EP1121768A1 Method and device for developing a virtual speaker distant from the sound source |
| 07/26/2001 | US20010010049 System of sharing objects having a plurality of contents |
| 07/26/2001 | US20010009606 System of sharing objects having a plurality of contents |
| 07/19/2001 | US20010008578 System of sharing objects having a plurality of contents |
| 07/19/2001 | US20010008576 System of sharing objects having a plurality of contents |
| 07/12/2001 | WO2000076266A3 Virtual multichannel speaker system |
| 07/04/2001 | EP1113703A1 Sound reproducing unit |
| 06/28/2001 | WO2001047319A2 Method and arrangement for recording and playing back sounds |
| 06/26/2001 | US6252965 Multichannel spectral mapping audio apparatus and method |
| 06/07/2001 | WO2001041504A1 Method for deriving at least three audio signals from two input audio signals |
| 06/06/2001 | CN1066902C Signal combine circuit, signal processing circuit, stereophonic circuit reproducing system and video reproducing system |
| 05/31/2001 | WO2001039548A1 Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system |
| 05/31/2001 | WO2001039547A1 A method of processing and reproducing an audio stereo signal, and an audio stereo signal reproduction system |
| 05/31/2001 | CA2392279A1 Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system |
| 05/22/2001 | US6236730 Full sound enhancement using multi-input sound signals |
| 05/15/2001 | CA2250810C Six-axis surround sound processor with improved matrix and cancellation control |
| 05/10/2001 | WO2001033905A2 System and method for providing interactive audio in a multi-channel audio environment |
| 05/09/2001 | CN1294782A Audio signal processing method and appts. |
| 05/08/2001 | US6229899 Method and device for developing a virtual speaker distant from the sound source |
| 05/01/2001 | CA2189126C Three-dimensional virtual audio display employing reduced complexity imaging filters |
| 04/24/2001 | US6222930 Method of reproducing sound |
| 04/11/2001 | CN1290895A Method and device for user controlled selective superimpose in stream medium |
| 03/15/2001 | WO2001019138A2 Method and apparatus for generating a second audio signal from a first audio signal |
| 03/06/2001 | US6198826 Qsound surround synthesis from stereo |
| 03/01/2001 | WO2001015492A1 Audio speaker system for personal computer |
| 02/28/2001 | CN1286011A Pseudo-stereophony device |
| 02/21/2001 | EP1077016A1 Matrix-encoded surround-sound channels in a discrete digital sound format |
| 02/15/2001 | WO2001011602A1 Multi-channel processing method |
| 02/14/2001 | CN1284195A Surround signal processing appts and method |
| 01/31/2001 | EP1072089A1 Audio signal processing method and apparatus |
| 01/24/2001 | CN1281329A Directional decoding |
| 01/24/2001 | CN1281328A Video frequency signal processor |
| 01/23/2001 | US6178245 Audio signal generator to emulate three-dimensional audio signals |
| 01/18/2001 | WO2001005188A1 Sound reproducing unit |
| 01/03/2001 | CN1278996A 5-2-5 Matrix encoder and decoder system |
| 01/02/2001 | US6169806 Computer, computer system and desk-top theater system |
| 12/21/2000 | WO2000078094A1 Voice-to-remaining audio (vra) interactive center channel downmix |
| 12/21/2000 | CA2374849A1 Voice-to-remaining audio (vra) interactive center channel downmix |
| 12/20/2000 | EP1061775A2 Audio signal processing |
| 12/20/2000 | EP1061774A2 Audio system having a sound field processor |
| 12/20/2000 | CN1277532A Multiple-channel audio frequency replaying apparatus and method |
| 12/14/2000 | WO2000076266A2 Virtual multichannel speaker system |
| 12/13/2000 | CN1276696A Intensifying system for dual-channel sound |
| 12/06/2000 | EP1058481A2 A method of modifying one or more original head related transfer functions |
| 11/22/2000 | EP1054576A1 Pseudo-stereophony device |
| 11/22/2000 | EP1054575A2 Directional decoding |
| 11/07/2000 | US6144747 Head mounted surround sound system |
| 10/04/2000 | EP1040466A2 Surround signal processing apparatus and method |
| 10/03/2000 | US6128395 Loudspeaker system with controlled directional sensitivity |
| 09/27/2000 | CN1268015A Sound signal processing |
| 09/21/2000 | WO2000022876A9 Point source speaker system |
| 09/19/2000 | US6122382 System for processing audio surround signal |
| 09/19/2000 | US6122381 Stereophonic sound system |