Patents for H04S 7 - Indicating arrangements; Control arrangements, e.g. balance control (4,080) |
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11/30/1999 | US5995706 Sound editing apparatus |
11/25/1999 | WO1999033325A3 Surround signal processing apparatus and method |
11/16/1999 | US5987142 System of sound spatialization and method personalization for the implementation thereof |
11/02/1999 | US5978487 Spectrum displaying device for audio device |
11/02/1999 | CA2159590C Improved audio reproduction system |
10/27/1999 | EP0951800A1 Six-axis surround sound processor with automatic balancing and calibration |
10/27/1999 | EP0689756B1 Plural-channel sound processing |
10/26/1999 | US5974152 Sound image localization control device |
10/13/1999 | EP0949845A2 Qsound surround synthesis from stereo |
10/09/1999 | CA2268378A1 Qsound surround synthesis from stereo |
10/07/1999 | WO1999051063A1 Headtracked processing for headtracked playback of audio signals |
10/07/1999 | WO1999051062A1 Formulation of complex room impulse responses from 3-d audio information |
10/06/1999 | CN1230867A Sound reproducing device, earphone device and signal processing device therefor |
09/30/1999 | WO1999049574A1 Audio signal processing method and apparatus |
09/30/1999 | WO1999049453A1 A method and a system for processing directed sound in an acoustic virtual environment |
09/28/1999 | US5959597 Image/audio reproducing system |
09/22/1999 | EP0772805B1 Operational parameter non-linear regulation process and circuitry |
09/07/1999 | US5950202 Virtual reality network with selective distribution and updating of data to reduce bandwidth requirements |
08/24/1999 | US5941961 Data buffering system including buffer memory shared between channel data groups whereas buffer memory is divided into memory areas for storing different types of channel data groups |
08/17/1999 | US5940518 In a vehicle radio |
08/12/1999 | WO1999040756A1 Headphone apparatus |
08/10/1999 | US5937071 Sound field expanding apparatus with improved tone control system |
08/04/1999 | EP0932894A1 Control console |
08/04/1999 | EP0677235B1 Sound image manipulation apparatus for sound image enhancement |
07/28/1999 | EP0932324A2 Sound reproducing device, earphone device and signal processing device therefor |
07/27/1999 | US5930733 Stereophonic image enhancement devices and methods using lookup tables |
07/22/1999 | DE19860600A1 Car audio system producing phase shift in front section of car |
07/20/1999 | US5926553 Method for measuring the conservation of stereophonic audio signals and method for identifying jointly coded stereophonic audio signals |
07/15/1999 | WO1999035009A1 Vehicle computer system with audio entertainment system |
07/06/1999 | US5920632 Apparatus for continuously switching a demodulator from stereo operation to mono operation, and vice versa |
07/01/1999 | WO1999033325A2 Surround signal processing apparatus and method |
07/01/1999 | WO1999033201A1 System and method for factoring a merged wave field into independent components |
07/01/1999 | WO1999033173A1 Method and system for driving speakers with a 90 degree phase shift |
06/17/1999 | WO1999030534A1 Peak to peak signal detector for audio system |
06/16/1999 | EP0923272A2 Signal quality measurement using full-complex FM detector |
06/08/1999 | US5910990 Apparatus and method for automatic equalization of personal multi-channel audio system |
05/26/1999 | CN1217627A Acoustic-image positioning treatment apparatus and method thereof |
05/19/1999 | EP0917400A2 An apparatus for localizing a sound image and a method for localizing the same |
05/19/1999 | EP0649589B1 Adaptive audio systems and sound reproduction systems |
05/18/1999 | US5905222 Silent stringed instrument for producing electric sound from virtual sound source same as that of acoustic stringed instrument |
04/14/1999 | EP0909114A2 Method and apparatus for indicating speaker faults |
03/31/1999 | EP0730812B1 Apparatus for processing binaural signals |
03/30/1999 | US5889843 Methods and systems for creating a spatial auditory environment in an audio conference system |
03/30/1999 | CA2132763C Surround sound system |
03/25/1999 | WO1999014983A1 Utilisation of filtering effects in stereo headphone devices to enhance spatialization of source around a listener |
03/24/1999 | EP0903057A1 Method and apparatus for providing sound in a spatial environment |
03/23/1999 | CA2053552C Method and apparatus for determining phase correlation of a stereophonic signal |
03/16/1999 | US5883961 Sound system |
03/04/1999 | WO1999011100A1 Method for controlling signal parameters |
03/02/1999 | US5877710 Operational parameter non-linear regulation process and circuitry |
02/24/1999 | EP0898364A2 Compensating filters |
02/17/1999 | EP0791279B1 Loudspeaker system with controlled directional sensitivity |
02/16/1999 | US5872743 Method and apparatus for locating the user of a computer system |
02/03/1999 | CN1207234A Arrangement, system, circuit and method for enhancing a stereo image |
01/26/1999 | US5864811 Audio circuit for use with synthesized audio signals and signals from a modem |
01/19/1999 | US5862229 Sound generator synchronized with image display |
01/14/1999 | WO1999001953A1 Audio effects processor having decoupled instruction execution and audio data sequencing |
12/29/1998 | US5854619 Karaoke apparatus displaying image synchronously with orchestra accompaniment |
12/15/1998 | US5850455 Discrete dynamic positioning of audio signals in a 360° environment |
12/09/1998 | EP0882381A1 An arrangement, a system, a circuit and a method for enhancing a stereo image |
12/01/1998 | US5844816 Angle detection apparatus and audio reproduction apparatus using it |
11/25/1998 | EP0880301A2 Full sound enhancement using multi-input sound signals |
11/25/1998 | EP0879545A1 Methods and systems for creating a spatial auditory environment in an audio conference system |
11/25/1998 | EP0517848B1 Sound mixing device |
11/25/1998 | CN1200009A System for processing audio surround signal |
11/19/1998 | CA2236342A1 Full sound enhancement using multi-input sound signals |
11/18/1998 | CN1199318A System for processing audio surround signal |
11/17/1998 | US5838800 Apparatus for enhancing stereo effect with central sound image maintenance circuit |
11/11/1998 | EP0779014B1 Device for controlling the volume of a car radio dependently upon the ambient noise |
11/10/1998 | US5835093 Audio equipment and method of displaying operation thereof |
10/28/1998 | EP0873667A1 Sound system |
10/22/1998 | DE19580412C1 Compensating for mutual interference between loudspeakers and acoustic distortion of room |
10/06/1998 | US5818418 For processing an audio signal/video signal for video signal receiver |
09/29/1998 | US5815580 Compensating filters |
09/22/1998 | US5812688 Method and apparatus for using visual images to mix sound |
09/22/1998 | US5812675 Sound reproducing array processor system |
09/22/1998 | US5812674 Method to simulate the acoustical quality of a room and associated audio-digital processor |
09/16/1998 | EP0865227A1 Sound field controller |
08/18/1998 | US5796843 Video signal and audio signal reproducing apparatus |
07/29/1998 | CN1189046A Apparatus and method for controlling sound for audio/video appliance |
07/22/1998 | EP0854660A2 Sound processing circuit |
07/21/1998 | US5784467 Method and apparatus for reproducing three-dimensional virtual space sound |
06/23/1998 | US5771294 Acoustic image localization apparatus for distributing tone color groups throughout sound field |
06/23/1998 | CA2049295C Acoustic signal reproducing apparatus |
06/16/1998 | US5768393 Three-dimensional sound system |
06/09/1998 | US5764775 Audio processing unit for mixing L channel and R channel of CD/CD-1 audio signal |
06/02/1998 | US5761314 Audio reproducing apparatus and headphone |
05/28/1998 | DE19720217A1 Automatic equalising arrangement for multi-channel audio system |
05/22/1998 | WO1998021915A1 An arrangement, a system, a circuit and a method for enhancing a stereo image |
05/20/1998 | EP0843252A2 Audio circuit for a computer |
05/19/1998 | US5754660 Sound generator synchronized with image display |
05/12/1998 | US5751819 Level meter for digitally-encoded audio |
05/06/1998 | EP0840281A1 Silent stringed instrument for producing electric sound from virtual sound source same as that of acoustic stringed instrument |
04/30/1998 | WO1998018119A1 Control console |
04/28/1998 | US5745584 Sound bubble structures for sound reproducing arrays |
04/21/1998 | US5742689 Method and device for processing a multichannel signal for use with a headphone |
04/15/1998 | CN1179074A Apparatus for reproducing multi channel voice using two speaker and its method |
04/07/1998 | US5737428 For detecting the highest relative signal of input signals |
03/25/1998 | EP0831393A2 Data buffering apparatus equipped with small buffer memory shared between channel data groups |
03/24/1998 | US5732142 Musical sound reproduction controller with two-stage adjustment of tone |