| Patents for H04S 1 - Two-channel systems (4,182) |
|---|
| 09/12/2002 | US20020125066 Sound direction system |
| 09/12/2002 | CA2439587A1 A method and system for simulating a 3d sound environment |
| 09/11/2002 | EP1238570A2 System for generating sounds |
| 09/11/2002 | EP1238567A2 Method for fixing the hifi position of an audio system |
| 09/11/2002 | EP1238479A1 Method and apparatus for suppressing acoustic background noise in a communication system |
| 09/10/2002 | US6449368 Multidirectional audio decoding |
| 09/06/2002 | WO2002069670A1 Headphone-use stereophonic device and voice signal processing program |
| 09/06/2002 | WO2002069488A1 Dive system with dynamic range processing |
| 09/05/2002 | US20020123810 Method for processing and reproducing audio signal at desired sound quality, reduced data volume or adjusted output level, apparatus for processing audio signal with sound quality control information or test tone signal or at reduced data volume, recording medium for recording audio signal with sound quality control information or test tone signal or at reduced data volume, and apparatus for reproducing audio signal at desired sound quality, reduced data |
| 09/05/2002 | US20020122559 Audio buffers with audio effects |
| 09/03/2002 | US6445798 Method of generating three-dimensional sound |
| 08/29/2002 | US20020118843 Vehicle audio adapter |
| 08/29/2002 | US20020118840 Multi-channel audio converter |
| 08/29/2002 | US20020118839 Circuit for providing a widened stereo image |
| 08/27/2002 | US6442277 Method and apparatus for loudspeaker presentation for positional 3D sound |
| 08/22/2002 | WO2002065815A2 Sound system and method of sound reproduction |
| 08/22/2002 | WO2002065814A1 Sound image localization signal processor |
| 08/22/2002 | US20020114474 DVE system with dynamic range processing |
| 08/22/2002 | US20020113646 Circuit for widening the stereobase in the reproduction of stereophonic sound signals |
| 08/22/2002 | CA2449410A1 Sound system and method of sound reproduction |
| 08/21/2002 | EP1232672A1 A method of processing and reproducing an audio stereo signal, and an audio stereo signal reproduction system |
| 08/21/2002 | EP1232671A1 Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system |
| 08/20/2002 | US6438434 Mixing, coding and decoding devices and methods |
| 08/20/2002 | US6438236 Audio signal identification using digital labelling signals |
| 08/15/2002 | WO2002063873A1 Head mounted image/voice reproducing system |
| 08/15/2002 | US20020111705 Audio System |
| 08/15/2002 | US20020110251 Audio signal processing apparatus |
| 08/14/2002 | EP1231726A2 System and method for the transmission of digital audio signals |
| 08/14/2002 | EP1230827A2 Method and device for processing a stereo audio signal |
| 08/14/2002 | DE10105738A1 System und Verfahren für die Übertragung von digitalen Audiosignalen System and method for the transmission of digital audio signals, |
| 08/14/2002 | CN1364393A Centralizing of spatially expanded sterophonic audio image |
| 08/08/2002 | WO2002062103A2 Audio sound quality enhancement apparatus |
| 08/08/2002 | CA2427141A1 Audio sound quality enhancement apparatus |
| 08/07/2002 | EP1229543A2 Producing a soundtrack for moving picture sequences |
| 08/07/2002 | CN2504866Y Improved acoustics system wiring structure |
| 08/06/2002 | US6430535 Method and device for projecting sound sources onto loudspeakers |
| 08/06/2002 | US6430294 Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus |
| 08/06/2002 | US6430293 Recording and play-back two-channel system for providing a holophonic reproduction of sounds |
| 08/06/2002 | US6430217 Noise eliminated digital wireless transceiver apparatus |
| 08/01/2002 | US20020103554 Interactive audio system |
| 07/31/2002 | EP1227392A2 Audio user interface |
| 07/25/2002 | US20020097883 System and method for sensing a sound system |
| 07/25/2002 | US20020097880 Transparent stereo widening algorithm for loudspeakers |
| 07/24/2002 | EP1225789A2 A stereo widening algorithm for loudspeakers |
| 07/23/2002 | US6424719 Acoustic crosstalk cancellation system |
| 07/18/2002 | WO2002056635A2 High fidelity audio signal reproduction system and method of operation |
| 07/18/2002 | WO2001097560A3 Portable audio devices |
| 07/18/2002 | DE10144623A1 Audiowiedergabegerät für Kraftfahrzeug Audio reproducing apparatus for a motor vehicle |
| 07/16/2002 | US6421447 Method of generating surround sound with channels processing separately |
| 07/16/2002 | US6421446 Apparatus for creating 3D audio imaging over headphones using binaural synthesis including elevation |
| 07/11/2002 | WO2002019766A3 System for generating sounds |
| 07/11/2002 | WO1999009648A3 Infinite impulse response filter for 3d sound with tap delay lineinitialization |
| 07/11/2002 | US20020090094 System and method for microphone gain adjust based on speaker orientation |
| 07/11/2002 | US20020089645 Producing a soundtrack for moving picture sequences |
| 07/09/2002 | US6418226 Method of positioning sound image with distance adjustment |
| 07/04/2002 | WO2002052897A1 Virtual sound image localizing device, virtual sound image localizing method, and storage medium |
| 07/04/2002 | WO2002052896A2 Multi-channel audio converter |
| 07/03/2002 | EP1219140A2 Acoustic correction apparatus |
| 07/03/2002 | CN1356787A Sound signal encoding device and method |
| 06/26/2002 | CN2497504Y Loudspeaker with metal-film coated voice coil |
| 06/20/2002 | US20020075295 Telepresence using panoramic imaging and directional sound |
| 06/18/2002 | US6408327 Synthetic stereo conferencing over LAN/WAN |
| 06/13/2002 | US20020072816 Audio system |
| 06/13/2002 | US20020071661 Audio and video reproduction apparatus |
| 06/13/2002 | US20020071575 Method and apparatus for shifting pitch of acoustic signals |
| 06/13/2002 | US20020071574 Phase shifting audio signal combining |
| 06/12/2002 | CN1353917A Stereo acoustic image amplifier |
| 06/06/2002 | WO2001084884A3 Audio system |
| 06/06/2002 | WO2001080599A3 Automatic mono/stereo detection |
| 06/06/2002 | DE10057897A1 Schaltungsanordnung zur Verbreiterung der Stereobasis bei der Wiedergabe stereophoner Tonsignale Circuit arrangement for widens the stereo when playing stereophonic audio signals |
| 06/06/2002 | DE10045703A1 Acoustic reproducing apparatus for vehicle has magnetic circuit and suspension unit which are attached to frame |
| 06/05/2002 | CN1352517A Remote control method and equipment, remote controller and equipment and system based on such remote controller |
| 05/30/2002 | US20020065569 Reproducing apparatus |
| 05/30/2002 | US20020064284 Sound signal encoding apparatus and method |
| 05/30/2002 | US20020062695 Sound field measuring apparatus and sound field measuring method |
| 05/29/2002 | EP1209944A2 Circuit assembly for widening the stereobase of stereophonic sound signals |
| 05/29/2002 | EP1209664A2 Method for determining compression factor for audio signal coding |
| 05/29/2002 | EP1208725A2 Multichannel audio signal processing device |
| 05/29/2002 | EP1208724A2 Audio signal processing device |
| 05/29/2002 | CN1085929C Method for realizing surrounding sound and disc of surrounding sound thereof |
| 05/22/2002 | CN1350764A Audio/video system and method enabling a user to select different views and sounds associated with an event |
| 05/16/2002 | US20020059061 Transmission-reception system, transmission apparatus, reception apparatus and transmission-reception method |
| 05/16/2002 | US20020057364 Electronic handheld audio/video receiver and listening/viewing device |
| 05/10/2002 | WO2001043503A3 Method and device for processing a stereo audio signal |
| 05/09/2002 | US20020054687 Sound field forming circuit and sound field forming apparatus |
| 05/09/2002 | US20020053275 Musical signal processing apparatus |
| 05/08/2002 | EP1204294A2 Sound field forming circuit and sound field forming apparatus |
| 05/08/2002 | EP1204203A2 Musical signal processing apparatus |
| 05/08/2002 | EP0966790A4 Apparatus and methods for the harmonic enhancement of electronic audio signals |
| 05/07/2002 | US6385320 Surround signal processing apparatus and method |
| 05/02/2002 | US20020051548 Audio signal reproduction device |
| 05/02/2002 | EP1202607A2 Sound field measuring apparatus and method |
| 05/02/2002 | EP1201101A2 Headphones with integrated microphones |
| 05/01/2002 | CN1347263A Signal processing apparatus and record medium |
| 05/01/2002 | CN1347076A Interval change method and device |
| 04/24/2002 | EP0990368B1 Method and apparatus for frequency-domain downmixing with block-switch forcing for audio decoding functions |
| 04/24/2002 | CN2488247Y Voice coil frame with shield ring |
| 04/23/2002 | US6377862 Method for processing and reproducing audio signal |
| 04/18/2002 | WO2000070913A9 Centralizing of a spatially expanded stereophonic audio image |
| 04/18/2002 | US20020046229 Entertainment apparatus having compatibility and computer system |