Patents
Sitemap › H04 - Electric communication technique › H04S - Stereophonic systems › H04S 7 - Indicating arrangements; Control arrangements, e.g. balance control
Patents for H04S 7 - Indicating arrangements; Control arrangements, e.g. balance control (4,080)
03/1998
03/18/1998EP0787416B1 Process for measuring the fidelity of stereophonic audio signals and process for recognising stereophonic audio signals coded together
03/18/1998EP0465662B1 Apparatus for reproducing acoustic signals
03/10/1998US5727067 Sound field control device
03/04/1998CN1175182A Method and device for producing multi-way sound channel from single sound channel
02/1998
02/25/1998EP0825800A2 Method and apparatus for generating multi-audio signals from a mono audio signal
02/12/1998WO1998006239A1 Setup in home theatre or other sound reproduction equipment
02/10/1998US5717767 Angle detection apparatus and audio reproduction apparatus using it
02/10/1998US5717766 Stereophonic sound reproduction apparatus using a plurality of loudspeakers in each channel
02/03/1998US5715318 Audio signal processing
02/03/1998US5715317 Apparatus for controlling localization of a sound image
01/1998
01/28/1998EP0821544A2 Device for sliding switching of a demodulator from stereophonic to monaural and vice versa
01/07/1998CN1169559A Sound generation device synchronous with picture display
12/1997
12/30/1997US5703955 Method and apparatus for multichannel sound reproduction
12/29/1997EP0814638A2 Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method
12/24/1997WO1997049262A1 Method and apparatus for providing sound in a spatial environment
12/24/1997CA2258652A1 Method and apparatus for providing sound in a spatial environment
12/17/1997EP0813351A2 Sound generator synchronized with image display
12/10/1997CN1167419A Sound equipment for vehicle
12/09/1997US5696832 Apparatus for limiting and displaying electrical fader level signals
12/09/1997US5696831 Audio reproducing apparatus corresponding to picture
12/02/1997US5694474 Adaptive filter for signal processing and method therefor
11/1997
11/26/1997EP0809413A1 Audio devide for a vehicle
11/18/1997US5689570 Sound reproducing array processor system
10/1997
10/30/1997WO1997040642A1 Six-axis surround sound processor with automatic balancing and calibration
10/30/1997DE19715498A1 Stereo acoustic image enhancement device
10/28/1997US5682433 Audio signal processor for simulating the notional sound source
10/22/1997EP0801855A1 Audio signal identification using digital labelling signals
10/21/1997US5680468 Methods of and systems for speaker equalization in automotive vehicles having convertible tops
10/21/1997US5680464 Sound field controlling device
10/09/1997WO1997037512A1 Six-axis surround sound processor with improved matrix and cancellation control
10/01/1997EP0797875A1 An adaptive filter for signal processing and method therefor
09/1997
09/18/1997WO1997025834A3 Method and device for processing a multi-channel signal for use with a headphone
09/12/1997WO1997033450A1 Methods and systems for creating a spatial auditory environment in an audio conference system
09/09/1997US5666425 Plural-channel sound processing
09/09/1997US5666424 Six-axis surround sound processor with automatic balancing and calibration
09/09/1997US5666136 Audio equipment and method of displaying operation thereof
08/1997
08/27/1997EP0791279A1 Loudspeaker system with controlled directional sensitivity
08/27/1997CN1158047A image/audio reproducing system
08/20/1997EP0790753A1 System for sound spatial effect and method therefor
08/19/1997US5659691 Virtual reality network with selective distribution and updating of data to reduce bandwidth requirements
08/12/1997US5657391 Sound image enhancement apparatus
08/06/1997EP0787416A1 Process for measuring the fidelity of stereophonic audio signals and process for recognising stereophonic audio signals coded together
07/1997
07/31/1997WO1997027724A1 Sound system
07/30/1997CN1155824A Headphone device
07/29/1997US5652798 Reverberant characteristic signal generation apparatus
07/17/1997WO1997025834A2 Method and device for processing a multi-channel signal for use with a headphone
07/16/1997EP0400106B1 Stereo enhancement and directivity servo
07/02/1997EP0782369A2 Method and apparatus for controlling the output level of the loudspeakers in a vehicle
07/02/1997CN1153264A Dynamic illuminant display device for speaker system
06/1997
06/24/1997US5642425 Sound field control device
06/24/1997US5642422 Digital surround sound method and apparatus
06/18/1997EP0779764A2 Apparatus for enhancing stereo effect with central sound image maintenance circuit
06/18/1997EP0779014A1 Device for controlling the volume of a car radio dependently upon the ambient noise
06/17/1997CA2073615C System for calibrating sound field
06/12/1997CA2192511A1 Apparatus for enhancing stereo effect with central sound image maintenance circuit
06/03/1997US5636283 Processing audio signals
05/1997
05/27/1997US5633993 Method and apparatus for providing a virtual world sound system
05/20/1997US5631964 Audio apparatus
05/14/1997EP0773702A2 Stereo enhancement and directivity servo
05/14/1997EP0772805A1 Operational parameter non-linear regulation process and circuitry
05/13/1997US5630175 Surround sound system for general purpose computer using dual sound cards
05/07/1997EP0772374A2 Method and apparatus for controlling the performance of a loudspeaker in a room
05/06/1997US5627899 Compensating filters
04/1997
04/29/1997US5625696 Six-axis surround sound processor with improved matrix and cancellation control
04/09/1997EP0645070B1 Stereophonic sound reproduction device using several loudspeakers in each channel
04/08/1997US5619220 Sound image display method and apparatus
03/1997
03/27/1997WO1997011538A1 An adaptive filter for signal processing and method therefor
03/12/1997EP0762804A2 Three-dimensional acoustic processor which uses linear predictive coefficients
03/12/1997EP0762803A2 Headphone device
03/05/1997CN1144433A TV set capable of display voice frequency balancing regulation data
02/1997
02/25/1997US5606624 Audio apparatus demonstrating
02/18/1997US5604810 Sound field control system for a multi-speaker system
01/1997
01/29/1997EP0756438A1 A method and device for correcting the auditory image in a multichannel audio system
01/07/1997US5592558 Sound reproduction device
01/07/1997US5590949 Detachable front panel for car stereos
12/1996
12/31/1996US5590207 Sound reproducing array processor system
12/31/1996US5590204 Device for reproducing 2-channel sound field and method therefor
12/31/1996US5590094 System and methd for reproducing sound
12/24/1996CA2126903C Digital surround sound method and apparatus
12/17/1996US5585587 Acoustic image localization apparatus for distributing tone color groups throughout sound field
12/03/1996US5581621 Automatic adjustment system and automatic adjustment method for audio devices
11/1996
11/20/1996EP0743640A2 Audio processing unit for mixing L channel and R channel of CD/CD-I audio signal
11/12/1996US5574792 Volume and tone control circuit for acoustic reproduction sets
11/05/1996US5572591 For reproducing a sound field with presence
11/05/1996US5572443 Acoustic characteristic correction device
10/1996
10/16/1996EP0519055B1 Decoder for variable-number of channel presentation of multidimensional sound fields
10/02/1996EP0735796A2 Method and apparatus for reproducing three-dimensional virtual space sound
10/01/1996CA2171370A1 Method and apparatus for reproducing three-dimensional virtual space sound
09/1996
09/11/1996EP0730812A1 Apparatus for processing binaural signals
09/11/1996EP0642719B1 Process for reducing data in the transmission and/or storage of digital signals from several interdependent channels
09/10/1996US5555306 Audio signal processor providing simulated source distance control
09/04/1996EP0462285B1 Acoustic reproducing device
08/1996
08/28/1996EP0729227A1 Vehicle speaker control system
08/13/1996US5546465 Audio playback apparatus and method
08/06/1996US5544249 Method of simulating a room and/or sound impression
07/1996
07/17/1996EP0721614A1 Virtual reality network
07/11/1996WO1996021290A1 Audio signal identification using digital labelling signals
07/11/1996CA2209621A1 Audio signal identification using digital labelling signals
06/1996
06/25/1996US5530924 Radio station memory presets with stored audio effects
06/25/1996US5530765 Audio mixer apparatus
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