Patents
Sitemap › H04 - Electric communication technique › H04S - Stereophonic systems › 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
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)
11/1990
11/01/1990WO1990012627A1 Memory cartridge for video game machine
10/1990
10/18/1990WO1990012476A1 Process and device for distribution of sound among several sound sources
10/18/1990WO1990012475A1 Circuit for modulation and distribution of alternative electric power
10/04/1990WO1990011670A1 Stereo synthesizer
10/03/1990EP0207084B1 Spatial reverberation
09/1990
09/12/1990EP0386846A1 Electro-acoustic system
08/1990
08/28/1990US4953213 Surround mode stereophonic reproducing equipment
07/1990
07/26/1990DE3932984A1 Stereophonic audio signal reproduction system - has front and rear speakers operated in different modes by selectors
07/25/1990CN1044199A Electronic gaming device with pseudo-stereophonic sound generating capabilities
07/18/1990EP0378386A2 Electronic gaming device with pseudo-stereophonic sound generating capabilities
07/10/1990US4941177 Variable matrix decoder
06/1990
06/28/1990WO1990007252A1 Stereo sound system
06/05/1990US4932060 Stereo electroacoustical transducing
05/1990
05/30/1990EP0370619A2 Multiple loudspeaker sound system for a video display device
05/09/1990EP0367569A2 Sound effect system
05/01/1990CA1268546A1 Stereophonic voice signal transmission system
04/1990
04/24/1990US4920569 Digital audio signal playback system delay
03/1990
03/13/1990US4908858 Stereo processing system
03/07/1990EP0357402A2 Sound imaging method and apparatus
02/1990
02/27/1990US4905283 Surround decoder
02/14/1990EP0354519A2 Surround decoder
02/14/1990EP0354517A2 Center mode control circuit
11/1989
11/21/1989US4882753 Passive ambience recovery system for the reproduction of sound
08/1989
08/29/1989US4862502 Sound reproduction
08/23/1989EP0329201A2 Mobile sound field correcting device
08/08/1989US4856064 Sound field control apparatus
07/1989
07/26/1989EP0325175A2 Multi-channel stereophonic system
07/19/1989CN2041476U Imitating stereophony adapter
07/18/1989US4850021 Method and a circuit for decoding four channel signals which are coded in a matrix and available in the form of a two-channel signal
07/12/1989EP0323904A2 Sound reproduction
07/12/1989EP0323830A2 Surround-sound system
07/04/1989US4845775 Loudspeaker reproduction apparatus in vehicle
06/1989
06/20/1989US4841573 Stereophonic signal processing circuit
06/20/1989US4841572 Stereo synthesizer
06/06/1989US4837825 Passive ambience recovery system for the reproduction of sound
05/1989
05/23/1989US4833715 FM stereo receiver
04/1989
04/26/1989EP0312614A1 Data transfer system
03/1989
03/21/1989US4815133 Sound field producing apparatus
03/21/1989US4815132 Stereophonic voice signal transmission system
03/01/1989EP0305208A2 Automated stereo synthesizer and generating method for audiovisual programs
01/1989
01/18/1989EP0155294B1 Method of and apparatus for realising spatial sound effects
01/17/1989US4799260 Variable matrix decoder
12/1988
12/20/1988US4792974 Automated stereo synthesizer for audiovisual programs
11/1988
11/03/1988WO1988008574A1 Method and apparatus for data transfer
09/1988
09/28/1988EP0284286A2 Stereo electroacoustical transducing
09/14/1988EP0282017A2 Stereo processing system
08/1988
08/03/1988EP0276948A2 Sound field control device
06/1988
06/09/1988DE3740358A1 Loudspeaker volume control circuit
03/1988
03/15/1988US4731848 For creating illusory sound sources in three dimensional space
03/15/1988CA1234055A1 Stereo generator
01/1988
01/13/1988EP0252102A1 A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal.
11/1987
11/10/1987US4706287 Stereo generator
11/05/1987DE3611012A1 Panorama simulator
10/1987
10/06/1987CA1227756A1 Apparatus for generating a pseudo-stereo signal
08/1987
08/04/1987US4685134 Multichannel computer generated sound synthesis system
06/1987
06/18/1987WO1987003771A1 A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal
03/1987
03/24/1987US4653096 Device for forming a simulated stereophonic sound field
03/09/1987EP0207084A4 Spatial reverberation.
03/03/1987US4648115 Pan-pot control apparatus
01/1987
01/20/1987US4638506 Sound field simulation system and method for calibrating same
01/07/1987EP0207084A1 Spatial reverberation.
11/1986
11/25/1986US4625326 Apparatus for generating a pseudo-stereo signal
11/18/1986CA1214113A1 Stereophonic sound producing apparatus for a game machine
11/11/1986US4622691 Mobile sound field correcting device
10/1986
10/22/1986CN86102314A 可变矩阵译码器 Variable matrix decoder
06/1986
06/10/1986US4594729 Method of and apparatus for the stereophonic reproduction of sound in a motor vehicle
06/03/1986CA1205388A1 Electronic stereo reverberation device with doubler
05/1986
05/13/1986US4589128 Process for the production of a sound recording and a device for carrying out the process
05/09/1986WO1986002791A1 Spatial reverberation
03/1986
03/25/1986US4577540 Electronic musical instrument having a pan-pot function
03/04/1986US4574391 Stereophonic sound producing apparatus for a game machine
01/1986
01/28/1986US4567607 Stereo image recovery
12/1985
12/18/1985EP0164973A2 Mobile sound field correcting device
11/1985
11/26/1985US4555795 Monaural to binaural audio processor
09/1985
09/25/1985EP0155294A1 Method of and apparatus for realising spatial sound effects.
07/1985
07/17/1985EP0148568A1 Stereo image recovery
06/1985
06/18/1985US4524451 Sound reproduction system having sonic image localization networks
05/1985
05/22/1985EP0142213A1 Apparatus for generating a pseudo-stereo signal
03/1985
03/14/1985WO1985001177A1 Method of and apparatus for realising spatial sound effects
02/1985
02/12/1985US4499340 Speaker for automotive audio system with vehicle panel utilized as sound amplifying medium
12/1984
12/18/1984US4489439 Electronic stereo reverberation device with doubler
12/04/1984CA1178897A1 Switching arrangement for a stereophonic sound synthesizer
10/1984
10/23/1984US4479235 Switching arrangement for a stereophonic sound synthesizer
10/02/1984CA1175361A1 Split phase stereophonic sound synthesizer
09/1984
09/26/1984EP0119235A1 Method and device for the reception and restitution of acoustic events
07/1984
07/25/1984EP0113780A1 Monaural to binaural audio processor
07/10/1984CA1170579A1 Reverberation apparatus
05/1984
05/30/1984EP0109498A2 Electronic stereo reverberation device with doubler
03/1984
03/29/1984WO1984001257A1 Method and device for the reception and restitution of acoustic events
03/20/1984US4438525 Reverberation apparatus
02/1984
02/28/1984US4434508 Radio receiver with audio selectivity
02/22/1984EP0100805A1 Device for the sonic reproduction of a stereophonic record
02/16/1984WO1984000661A1 Monaural to binaural audio processor
10/1983
10/04/1983US4408095 Acoustic apparatus
09/1983
09/13/1983US4404427 Audio signal processing system
09/13/1983CA1153701A1 Audio signal processing system
07/1983
07/19/1983US4394535 Split phase stereophonic sound synthesizer
05/1983
05/10/1983CA1146081A1 Sound reproducing systems utilizing acoustic processing unit
04/1983
04/06/1983EP0075615A1 Sound field simulation system and method for calibrating same
02/1983
02/01/1983CA1140641A1 Noise reducing circuit for ctd delay line
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