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