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2017

19609454Method for playing back the sound of a digital audio signal
29609452Obtaining sparseness information for higher order ambisonic audio renderers
39609434Device and method for driving a sound system and sound system
49609383Directional audio for virtual environments
59607622Audio-signal processing device, audio-signal processing method, program, and recording medium
69602947Apparatus and a method for processing audio signal to perform binaural rendering
79602944Apparatus and method for creating proximity sound effects in audio systems
89601122Smooth configuration switching for multichannel audio
99595266Audio encoding/decoding device using reverberation signal of object audio signal
109591424Generating an output signal by send effect processing
119591420Generation of individual sound zones within a listening room
129584943Method and apparatus for processing audio signals
139584942Determination of head-related transfer function data from user vocalization perception
149584940Wireless exchange of data between devices in live events
159584918Dynamic volume control and multi-spatial processing protection
169584915Spatial audio with remote speakers
179584912Spatial audio rendering and encoding
189584905Audio signal mixing
199584235Multi-channel audio processing
209578439Method, system and article of manufacture for processing spatial audio
219578438Apparatus and method for driving loudspeakers of a sound system in a vehicle
229578437Method and apparatus for processing audio signals
239578435Apparatus and method for enhanced spatial audio object coding
249570081Backwards compatible audio representation
259565509Enhanced coding and parameter representation of multichannel downmixed object coding
269565508Loudness level and range processing
279560461Automatic loudspeaker polarity detection
289554228Method for implementing surround sound using a plurality of vehicles
299552820Apparatus and method for processing multi-channel audio signal using space information
309552818Smooth configuration switching for multichannel audio rendering based on a variable number of received channels
319549275System and tools for enhanced 3D audio authoring and rendering
329542952Decoding device, decoding method, encoding device, encoding method, and program
339542951Method and an apparatus for processing an audio signal
349538307Audio signal reproduction device and audio signal reproduction method
359536529Apparatus for processing an audio signal and method thereof

2016

369532153Method and a system of providing information to a user
379530421Encoding and reproduction of three dimensional audio soundtracks
389525956Determining the inter-channel time difference of a multi-channel audio signal
399525955Digital speaker system and electrical connection method for digital speaker system
409520135Reconstructing audio signals with multiple decorrelation techniques
419519346Low-frequency effects haptic conversion system
429516447Method and apparatus for generating and restoring downmixed signal
439516446Scalable downmix design for object-based surround codec with cluster analysis by synthesis
449516440Providing a multi-channel and a multi-zone audio environment
459514758Method and an apparatus for processing an audio signal
469510124Parametric binaural headphone rendering
479508386Method and apparatus for synchronizing audio and video signals
489508353Method and apparatus for generating a stereo signal from a down-mixed mono signal
499507560Device playback failure recovery and redistribution
509507559Audio outputting apparatus, control method thereof and audio outputting system
519504919Vertical and horizontal perception audio for a gaming device
529503810Arrangement for mixing at least two audio signals
539502045Coding independent frames of ambient higher-order ambisonic coefficients
549502042Apparatus for processing an audio signal and method thereof
559497561Wave field synthesis by synthesizing spatial transfer function over listening region
569497545Analog area speaker panel with precision placement and direction of audio radiation
579489957Audio encoder and decoder
589489955Indicating frame parameter reusability for coding vectors
599489953Directional coding conversion
609484039Method and an apparatus for processing an audio signal
619484008Method and apparatus for down-mixing of a multi-channel audio signal
629479888Methods and apparatus for implementing sound events
639479887Method and apparatus for pruning audio based on multi-sensor analysis
649479886Scalable downmix design with feedback for object-based surround codec
659479871Method, medium, and system synthesizing a stereo signal
669478225Systems, methods, apparatus, and computer-readable media for three-dimensional audio coding using basis function coefficients
679473870Loudspeaker position compensation with 3D-audio hierarchical coding
689473869Audio signal processing device
699473863System and method for improving audio capture quality in a living room type environment
709473852Pre-processing of a channelized music signal
719467793Systems, methods, and apparatus for recording three-dimensional audio and associated data
729467791System and method for adaptive audio signal generation, coding and rendering
739462405Apparatus and method for generating panoramic sound
749462404Compatible multi-channel coding/decoding
759462387Audio system and method of operation therefor
769462386Wired, wireless, infrared, and powerline audio entertainment systems
779462383Audio signal processing device and audio signal processing method
789460723Error concealment strategy in a decoding system
799454971Method and apparatus for compressing and decompressing a higher order ambisonics signal representation
809454969Multichannel audio coding
819451379Sound field analysis system
829451378Method and apparatus to reproduce multi-channel audio signal in multi-channel speaker system
839445199Method and apparatus for determining dominant sound source directions in a higher order Ambisonics representation of a sound field
849439019Sound signal processing method and apparatus
859438993Methods and devices to generate multiple-channel audio recordings
869432793Head-related transfer function convolution method and head-related transfer function convolution device
879432789Sound separation device and sound separation method
889426599Method and apparatus for personalized audio virtualization
899426597Method and system for playing back an audio signal
909426595Signal processing apparatus, signal processing method, and storage medium
919424853Apparatus and method for synchronizing multichannel extension data with an audio signal and for processing the audio signal
929420394Panning presets
939420393Binaural rendering of spherical harmonic coefficients
949408010Audio system and method therefor
959402143Method for processing an audio signal, audio playback system, and processing unit for processing audio signals
969401151Parametric encoder for encoding a multi-channel audio signal
979400632Playback according to playback responsibility in stereo pair
989398391Stereo widening over arbitrarily-configured loudspeakers
999392390Method of applying a combined or hybrid sound-field control strategy
1009392089Mobile electronic device and sound playback method thereof
1019386389Audio signal processing device
1029385676System and method for dynamically mixing audio signals
1039384726Feedback microphones encoder modulators, signal generators, mixers, amplifiers, summing nodes
1049380398Sound processing apparatus, method, and program
1059378747Method and apparatus for layout and format independent 3D audio reproduction
1069378745MDCT-based complex prediction stereo coding
1079374641Device and method for driving a sound system and sound system
1089374640Method and system for optimizing center channel performance in a single enclosure multi-element loudspeaker line array
1099373335Processing audio objects in principal and supplementary encoded audio signals
1109372251System for spatial extraction of audio signals
1119369818Filtering with binaural room impulse responses with content analysis and weighting
1129369164Method, medium, and system decoding and encoding a multi-channel signal
1139363618Method and device for controlling speaker array sound field based on quadratic residue sequence combinations
1149363586Narrow profile speaker configurations and systems
1159361898Three-dimensional sound compression and over-the-air-transmission during a call
1169361896Temporal and spatial shaping of multi-channel audio signal
1179358454Audio headset system and apparatus
1189357327Loudspeaker system for reproducing multi-channel sound with an improved sound image
1199357304Sound system for establishing a sound zone
1209357282Listening device and accompanying signal processing method
1219356571Earbuds and earphones for personal sound system
1229354704Low-frequency effects haptic conversion system
1239351092Audio processing device, audio processing method, and program
1249344826Method and apparatus for communicating with audio signals having corresponding spatial characteristics
1259344825At least one of intelligibility or loudness of an audio program
1269344824Method and apparatus for conversion of a multi-channel audio signal into a two-channel audio signal
1279338574Method and apparatus for changing the relative positions of sound objects contained within a Higher-Order Ambisonics representation
1289338554Sound system for establishing a sound zone
1299338420Video analysis assisted generation of multi-channel audio data
1309332370Method and apparatus for using spatial audio rendering for a parallel playback of call audio and multimedia content
1319332349Sound image localization apparatus
1329326083Audio signal processing system
1339326067Multiplexing audio system and method
1349324329Method for parametric spatial audio coding and decoding, parametric spatial audio coder and parametric spatial audio decoder
1359319820Apparatuses and methods for use in creating an audio scene for an avatar by utilizing weighted and unweighted audio streams attributed to plural objects
1369319794Surround sound system
1379313599Apparatus and method for multi-channel signal playback
1389311925Method, apparatus and computer program for processing multi-channel signals
1399311922Method, apparatus, and storage medium for decoding encoded audio channels
1409294861Audio signal processing device
1419294854Information processor, audio processor, audio processing system and program
1429288603Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding
1439288600Sound generator
1449282418Cognitive loudspeaker system
1459282417Spatial sound reproduction
1469275646Method for inter-channel difference estimation and spatial audio coding device
1479271102Multi-dimensional parametric audio system and method
1489268522Devices and methods for conveying audio information in vehicles
1499264838System and method for variable decorrelation of audio signals
1509264794Orientation-responsive acoustic array control
1519257127Apparatus and method for coding and decoding multi-object audio signal with various channel including information bitstream conversion
1529253574Direct-diffuse decomposition
1539253573Acoustic signal processing apparatus, acoustic signal processing method, program, and recording medium
1549253572Methods and systems for synthetic audio placement
1559253561Orientation-responsive acoustic array control
1569247371Sound processing apparatus
1579247370Sound image localization control apparatus
1589247369Method for enlarging a location with optimal three-dimensional audio perception
1599246457Amplifying device
1609241218Apparatus and method for decomposing an input signal using a pre-calculated reference curve
1619241216Data structure for higher order ambisonics audio data
1629237407High quality, controlled latency multi-channel wireless digital audio distribution system and methods
1639232334Apparatus and method for processing multi-channel audio signal using space information
1649232312Multi-channel audio enhancement system

2015

1659226089Signal generation for binaural signals
1669219974Method and apparatus for simultaneously controlling near sound field and far sound field
1679219973Method and system for scaling ducking of speech-relevant channels in multi-channel audio
1689219972Efficient audio coding having reduced bit rate for ambient signals and decoding using same
1699218818Efficient and scalable parametric stereo coding for low bitrate audio coding applications
1709204236System and tools for enhanced 3D audio authoring and rendering
1719197979Object-based audio system using vector base amplitude panning
1729197978Sound reproduction apparatus and sound reproduction method
1739196257Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
1749196238Audio processing based on changed position or orientation of a portable mobile electronic apparatus
1759185490Single enclosure surround sound loudspeaker system and method
1769179236System and method for adaptive audio signal generation, coding and rendering
1779167367Optimized low-bit rate parametric coding/decoding
1789161149Three-dimensional sound compression and over-the-air transmission during a call
1799161148Signal processing apparatus and method for providing 3D sound effect
1809161147Apparatus and method for calculating driving coefficients for loudspeakers of a loudspeaker arrangement for an audio signal associated with a virtual source
1819161132Audio processing apparatus with selection to and from multi-room mode
1829154896Audio spatialization and environment simulation
1839154895Apparatus of generating multi-channel sound signal
1849154878Interconnected speaker system
1859154877Collaborative sound system
1869143879Directional audio array apparatus and system
1879143107System and method for dynamically mixing audio signals
1889143104Audio signal processing circuit, car audio apparatus using the same, audio component apparatus, electronic device and output audio signal generating method
1899137604Audio processing apparatus
1909137603Spatial audio
1919131326Audio signal processing
1929131305Configurable three-dimensional sound system
1939131298Constrained dynamic amplitude panning in collaborative sound systems
1949124996Apparatus and method for reproducing a sound field with a loudspeaker array controlled via a control volume
1959124966Image generation for collaborative sound systems
1969119011Upmixing object based audio
1979113259Tunable multichannel headphone and method for assembling the same
1989107019Signal processing apparatus and method for providing spatial impression
1999107018System and method for sound reproduction
2009100767Converter and method for converting an audio signal
2019100749System and method for directionally radiating sound
2029100039System, medium, and method of encoding/decoding multi-channel audio signals
2039093056Audio separation system and method
2049088857Audio apparatus, control method for the audio apparatus, and storage medium for determining sudden noise
2059088855Vector-space methods for primary-ambient decomposition of stereo audio signals
2069088723Server, client terminal, and program
2079087511Method, medium, and system for generating a stereo signal
2089078077Estimation of synthetic audio prototypes with frequency-based input signal decomposition
2099078076Sound system
2109077783Sound data transmitting apparatus, sound data transmitting method, sound data receiving apparatus, and sound data receiving apparatus
2119071920Binaural decoder to output spatial stereo sound and a decoding method thereof
2129071215Audio signal processing device, method, program, and recording medium for processing audio signal to be reproduced by plurality of speakers
2139066191Apparatus and method for generating filter characteristics
2149066182Audio processing apparatus
2159066178Audio processing apparatus
2169066173Method for producing optimum sound field of loudspeaker
2179060236Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods, computer program and bitstream using a distortion control signaling
2189055383Multi channel bass management
2199002716Method for describing the composition of audio signals
2208934646Audio mixer

2014

2218798276Method and apparatus for encoding multi-channel audio signal and method and apparatus for decoding multi-channel audio signal
2228793125Method and device for decorrelation and upmixing of audio channels
2238761419System for selecting speaker locations in an audio system
2248755542System for selecting correction factors for an audio system
2258754925Audio source locator and tracker, a method of directing a camera to view an audio source and a video conferencing terminal
2268670576Method and an apparatus for processing an audio signal
2278654994Method and an apparatus for processing an audio signal

2007

2287212333Optical node

2005

2296961632Signal processing apparatus
2306959096Sound reproduction system
2316956954Surround-sound processing system
2326954538Remote control apparatus and a receiver and an audio system
2336944309Headphone system
2346937733Audio system with a phase adjustment circuit
2356934395Surround sound field reproduction system and surround sound field reproduction method
2366931370System and method for providing interactive audio in a multi-channel audio environment
2376928179Audio processing apparatus
2386928169Audio signal processing
2396925186Ambient sound audio system
2406920223Method for deriving at least three audio signals from two input audio signals
2416917686Environmental reverberation processor
2426914988Audio reproducing device
2436904152Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions
2446901148Automatic sound field correcting device
2456882731Multi-channel audio converter
2466856688Method and system for automatic reconfiguration of a multi-dimension sound system
2476853732Center channel enhancement of virtual sound images
2486850621Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method
2496845163Microphone array for preserving soundfield perceptual cues
2506839676Audio-decoder apparatus using a common circuit substrate for a plurality of channel models
2516839438Positional audio rendering

2004

2526831911System and method for receiving and processing GPS and wireless signals
2536829361Headphones with integrated microphones
2546829017Specifying a point of origin of a sound for audio effects using displayed visual information from a motion picture
2556826282Music spatialisation system and method
2566822996Mount having high mechanical stiffness and tunable external cavity laser assembly including same
2576804565Data-driven software architecture for digital sound processing and equalization
2586804361Sound signal playback machine and method thereof
2596788789Phase conversion surround circuitry
2606782111Multiple voicecoil and driver transducing
2616781977Wideband CDMA mobile equipment for transmitting multichannel sounds
2626781933Pseudo multi-channel stereo play-back
2636774820Matrix improvements to lossless encoding and decoding
2646772127Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
2656766028Headtracked processing for headtracked playback of audio signals
2666760448Compatible matrix-encoded surround-sound channels in a discrete digital sound format
2676760446Point source speaker system
2686754352Sound field production apparatus
2696751322Acoustic modeling system and method using pre-computed data structures for beam tracing and path generation
2706741706Audio signal processing method and apparatus
2716721425Sound signal mixing
2726718042Dithered binaural system
2736714825Multi-channel audio reproducing device
2746711270Audio reproducing apparatus
2756711266Surround sound channel encoding and decoding
27666974915-2-5 matrix encoder and decoder system
2776694033Reproduction of spatialized audio
2786694027Discrete multi-channel/5-2-5 matrix system
2796687378Vehicle-mounted acoustic system
2806684060Digital wireless premises audio system and method of operation thereof

2003

2816668061Crosstalk canceler
2826661737Acoustic logging tool having programmable source waveforms
2836658117Sound field effect control apparatus and method
2846647119Spacialization of audio with visual cues
2856628787Wavelet conversion of 3-D audio signals
2866624873Matrix-encoded surround-sound channels in a discrete digital sound format
2876614912Sound reproducing device, earphone device and signal processing device therefor
2886611212Matrix improvements to lossless encoding and decoding
2896608907Audio output apparatus having wireless speakers
2906608903Sound field reproducing method and apparatus for the same
2916590982Wireless stereo center speaker system
2926588867Reciprocal index lookup for BTSC compatible coefficients
2936577738Parametric virtual speaker and surround-sound system
2946574339Three-dimensional sound reproducing apparatus for multiple listeners and method thereof
2956507658Surround sound panner

2002

2966498857Method of synthesizing an audio signal
2976496584Multi-channel stereo converter for deriving a stereo surround and/or audio center signal
2986487535Multi-channel audio encoder
2996483925Headphone having several speakers
3006449371PC surround sound mixer
3016442277Method and apparatus for loudspeaker presentation for positional 3D sound
3026430353Audio and video reproducing apparatus having independent control of selected signals
3036430293Recording and play-back two-channel system for providing a holophonic reproduction of sounds
3046389139Powered volume control for distributed audio system
3056385320Surround signal processing apparatus and method
3066381333Sound processing circuit
3076366679Multi-channel sound transmission method
3086360200Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals
3096351733Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
3106349285Audio bass management methods and circuits and systems using the same
3116341165Coding and decoding of audio signals by using intensity stereo and prediction processes

2001

3126332026Bass management system for home theater equipment
3136292570Surround sound
3146275589Method and apparatus for error masking in multi-channel audio signals
3156259795Methods and apparatus for processing spatialized audio
3166240189Generating a common bass signal
3176236730Full sound enhancement using multi-input sound signals
3186222930Method of reproducing sound
3196198826Qsound surround synthesis from stereo
3206195435Method and system for channel balancing and room tuning for a multichannel audio surround sound speaker system
3216188769Environmental reverberation processor
3226169812Point source speaker system

2000

3236167140AV Amplifier
3246154553Sound bubble structures for sound reproducing arrays
3256154549Method and apparatus for providing sound in a spatial environment
3266154161Integrated audio mixer
3276144747Head mounted surround sound system
3286129283Information reproduction apparatus for optically reading a code pattern from a recording medium and outputting desired information pieces of the read code pattern
3296122382System for processing audio surround signal
3306122381Stereophonic sound system
3316118876Surround sound speaker system for improved spatial effects
3326118821Compressed code decoding device and audio decoding device
3336111959Sound spreader
3346108430Headphone apparatus
3356072879Sound field control unit and sound field control device
3366072878Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
3376069962Point source speaker system
3386023490Encoding apparatus for encoding a plurality of information signals
3396021386Coding method and apparatus for multiple channels of audio information representing three-dimensional sound fields
3406021206Methods and apparatus for processing spatialised audio
3416016473Low bit-rate spatial coding method and system
3426016295Audio system which not only enables the application of the surround sytem standard to special playback uses but also easily maintains compatibility with a surround system

1999

3436009179Method and apparatus for electronically embedding directional cues in two channels of sound
3446005949Surround sound effect control device
3456005948Audio channel mixing
3466002775Method and apparatus for electronically embedding directional cues in two channels of sound
3475987142System of sound spatialization and method personalization for the implementation thereof
3485978762Digitally encoded machine readable storage media using adaptive bit allocation in frequency, time and over multiple channels
3495974380Multi-channel audio decoder
3505970152Audio enhancement system for use in a surround sound environment
3515960037Encoding of a plurality of information signals
3525956674Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
3535930370In-home theater surround sound speaker system
3545912976Multi-channel audio enhancement system for use in recording and playback and methods for providing same
3555909664Method and apparatus for encoding and decoding audio information representing three-dimensional sound fields
3565907827Channel synchronized audio data compression and decompression for an in-flight entertainment system
3575896456Automatic stereophonic manipulation system and apparatus for image enhancement
3585896358Audio system which not only enables the application of the surround system standard to special playback uses but also easily maintains compatibility with a surround system
3595889867Stereophonic Reformatter
3605872851Dynamic stereophonic enchancement signal processing system
3615870480Multichannel active matrix encoder and decoder with maximum lateral separation
3625862228Audio matrix encoding
3635857026Space-mapping sound system

1998

3645850455Discrete dynamic positioning of audio signals in a 360.degree. environment
3655844993Surround signal processing apparatus
3665844816Angle detection apparatus and audio reproduction apparatus using it
3675841993Surround sound system for personal computer for interfacing surround sound with personal computer
3685841879Virtually positioned head mounted surround sound system
3695835093Audio equipment and method of displaying operation thereof
3705818943Transmission and reception of a first and a second main signal component
3715818941Configurable cinema sound system
3725818418Audio equipment and method of displaying operation thereof
3735812675Sound reproducing array processor system
3745812674Method to simulate the acoustical quality of a room and associated audio-digital processor
3755802181Theater sound system with upper surround channels
3765802180Method and apparatus for efficient presentation of high-quality three-dimensional audio including ambient effects
3775798818Configurable cinema sound system
3785796844Multichannel active matrix sound reproduction with maximum lateral separation
3795796843Video signal and audio signal reproducing apparatus
3805784467Method and apparatus for reproducing three-dimensional virtual space sound
3815774864Composite dynamic-crosstalk/phantom-center decoder for MPEG-2 multichannel audio
3825774559Method and apparatus for determining perceived roughness of powertrain sounds
3835774016Amplifier system having prioritized connections between inputs and outputs
38457712955-2-5 matrix system
3855771294Acoustic image localization apparatus for distributing tone color groups throughout sound field
3865771041System for producing directional sound in computer based virtual environment
3875768394Surround audio signal reproducing apparatus having a sub-woofer signal mixing function
3885761537Method and apparatus for integrating three dimensional sound into a computer system having a stereo audio circuit
3895761315Surround signal processing apparatus
3905761314Audio reproducing apparatus and headphone
3915757927Surround sound apparatus
3925754874Digital signal processor with selective sound operation
3935748746Ceiling speaker and signal source
3945745584Sound bubble structures for sound reproducing arrays
3955742689Method and device for processing a multichannel signal for use with a headphone
3965737427Surround sound processor unit
3975734724Audio communication control unit
3985732142Musical sound reproduction controller with two-stage adjustment of tone
3995729613Reverberators for use in wide band assisted reverberation systems
4005727075Multipoint communication apparatus with reduced number of audio decoders
4015727068Matrix decoding method and apparatus
4025727067Sound field control device
4035727066Sound Reproduction systems
4045717767Angle detection apparatus and audio reproduction apparatus using it
4055717766Stereophonic sound reproduction apparatus using a plurality of loudspeakers in each channel
4065717765Theater sound system with upper surround channels
4075717764Global masking thresholding for use in perceptual coding
4085715318Audio signal processing
4095708719In-home theater surround sound speaker system
4105708718Surround sound processor system

1997

4115703955Method and apparatus for multichannel sound reproduction
4125701346Method of coding a plurality of audio signals
4135689570Sound reproducing array processor system
4145682433Audio signal processor for simulating the notional sound source
4155680464Sound field controlling device
4165666424Six-axis surround sound processor with automatic balancing and calibration
4175666136Audio equipment and method of displaying operation thereof
4185661812Head mounted surround sound system
4195644640Surround sound processor with improved control voltage generator
4205642423Digital surround sound processor
4215642422Digital surround sound method and apparatus
4225638452Expandable multi-dimensional sound circuit
4235638451Transmission and storage of multi-channel audio-signals when using bit rate-reducing coding methods
4245636283Processing audio signals
4255633981Method and apparatus for adjusting dynamic range and gain in an encoder/decoder for multidimensional sound fields
4265632005Encoder/decoder for multidimensional sound fields
4275625696Six-axis surround sound processor with improved matrix and cancellation control
4285619220Sound image display method and apparatus
4295610986Linear-matrix audio-imaging system and image analyzer
4305610985Digital 3-channel transmission of left and right stereo signals and a center signal
4315608805Dynamic loader
4325602923Theater sound system with upper surround channels
4335602922Method and apparatus for processing an audio signal by surround modes
4345600727Determination of position
4355596644Method and apparatus for efficient presentation of high-quality three-dimensional audio
4365594800Sound reproduction system having a matrix converter

1996

4375590207Sound reproducing array processor system
4385590204Device for reproducing 2-channel sound field and method therefor
4395590094System and methd for reproducing sound
4405585587Acoustic image localization apparatus for distributing tone color groups throughout sound field
4415583962Encoder/decoder for multidimensional sound fields
4425546465Audio playback apparatus and method
4435530760Apparatus and method for adjusting levels between channels of a sound system
4445528694Audio signal processing arrangement for deriving a centre channel signal and also an audio visual reproduction system comprising such a processing arrangement
4455524054Method for generating a multi-channel audio decoder matrix
4465517570Sound reproducing array processor system
4475509017Process for simultaneous transmission of signals from N signal sources
4485506907Channel audio signal encoding method
4495504819Surround sound processor with improved control voltage generator
4505497425Multi channel surround sound simulation device
4515488665Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels

1995

4525463424Multi-channel transmitter/receiver system providing matrix-decoding compatible signals
4535459790Personal sound system with virtually positioned lateral speakers
4545436975Apparatus for cross fading out of the head sound locations
4555428687Control voltage generator multiplier and one-shot for integrated surround sound processor
4565426720Neurocontrolled adaptive process control system
4575426702System for deriving a center channel signal from an adapted weighted combination of the left and right channels in a stereophonic audio signal
4585412731Automatic stereophonic manipulation system and apparatus for image enhancement
4595400433Decoder for variable-number of channel presentation of multidimensional sound fields
4605390256Dynamic loader
4615384855Audio system for vehicular application
4625381482Sound field controller

1994

4635367612Neurocontrolled adaptive process control system
4645367506Sound collecting system and sound reproducing system
4655339363Apparatus for enhancing monophonic audio signals using phase shifters
4665333201Multi dimensional sound circuit
4675325435Sound field offset device
4685319713Multi dimensional sound circuit
4695307418Center channel speaker having multiple interconnected backload amplifying chambers for surround sound stereo audio systems
4705307415Surround processor with antiphase blending and panorama control circuitry
4715301237Surround sound loudspeakers
4725297211Acoustic device for custom installation
4735297209System for calibrating sound field
4745295189Control voltage generator for surround sound processor
4755291557Adaptive rematrixing of matrixed audio signals
4765280528Band pass filter circuit for rear channel filtering in a surround processor

1993

4775274740Decoder for variable number of channel presentation of multidimensional sound fields
4785265166Multi-channel sound simulation system
4795263087Time constant processing circuit for surround processor
4805260920Acoustic space reproduction method, sound recording device and sound recording medium
4815257313Surround audio apparatus
4825255326Interactive audio control system
4835251260Audio surround system with stereo enhancement and directivity servos
4845222145Dual-chamber multi-channel speaker for surround sound stereo audio systems
4855222059Surround-sound system with motion picture soundtrack timbre correction, surround sound channel timbre correction, defined loudspeaker directionality, and reduced comb-filter effects
4865212733Sound mixing device
4875199075Surround sound loudspeakers and processor
4885197099Multiple-channel audio reproduction apparatus
4895193118Vehicular sound reproducing
4905189703Timbre correction units for use in sound systems
4915181249Three channel audio transmission and/or reproduction systems
4925177798Sound reproducer for high definition television

1992

4935172415Surround processor
4945165097Controller for acoustic apparatus
4955136650Sound reproduction
4965128999Sound field correcting apparatus
4975125732Motion picture exhibition facility
4985123051Sound field reproducing apparatus
4995111508Audio system for vehicular application
5005109423Audio system with amplifier and signal device
5015105412Recording medium playing apparatus for correcting audio signals using an appropriate sound field

1991

5025073945Loudspeaker system
5035046098Variable matrix decoder with three output channels
5045043970Sound system with source material and surround timbre response correction, specified front and surround loudspeaker directionality, and multi-loudspeaker surround
5055040220Control circuit for controlling reproduced tone characteristics
5065033577Room sound reproducing
5075004067Cinema sound system for unperforated screens

1990

5084980915Center mode control circuit
5094965674Recording and reproducing system with selective matrix conversion
5104953219Stereo signal reproducing system using reverb unit
5114953213Surround mode stereophonic reproducing equipment
5124941177Variable matrix decoder
5134933768Sound reproducer
5144932060Stereo electroacoustical transducing
5154932059Variable matrix decoder for periphonic reproduction of sound
5164905284Audio system for vehicular applications
5174905283Surround decoder
5184897877Sub-woofer driver combination with dual voice coil arrangement
5194891839Signal re-distribution, decoding and processing in accordance with amplitude, phase and other characteristics

1989

5204887045Sum/differential signal processing circuit
5214882753Passive ambience recovery system for the reproduction of sound
5224873722Multi-channel reproducing system
5234862502Sound reproduction
5244850021Method and a circuit for decoding four channel signals which are coded in a matrix and available in the form of a two-channel signal
5254841573Stereophonic signal processing circuit
5264837825Passive ambience recovery system for the reproduction of sound
5274819269Extended imaging split mode loudspeaker system
5284807217Multi-channel stereo reproducing apparatus
5294799260Variable matrix decoder

1988

5304747142Three-track sterophonic system

1987

5314704728Signal re-distribution, decoding and processing in accordance with amplitude, phase, and other characteristics
5324703502Stereo signal reproducing system
5334696036Directional enhancement circuit
5344685136Triphonic sound system
5354680796Sound encoding system
5364638506Sound field simulation system and method for calibrating same
5374638505Optimized low frequency response of loudspeaker systems having main and sub-speakers

1986

5384630298Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
5394622689Stereophonic sound system
5404618987Large-area acoustic radiation system
5414615043Triphonic sound system
5424612663Multichannel audio reproduction system
5434594730Apparatus and method for enhancing the perceived sound image of a sound signal by source localization
5444594729Method of and apparatus for the stereophonic reproduction of sound in a motor vehicle
5454589129Signal decoding system
5464577305Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore

1985

5474536716Stereo amplifier circuit for bichannel signals
5484532647Automatic dimension control for a directional enhancement system
5494525855Variable rate and variable limit dimension controls for a directional enhancement system
5504521906Speaker systems for producing balanced stereo images at multiple locations
5514516257Triphonic sound system

1984

5524489432Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
5534457012FM Stereo apparatus and method
5544443889Acoustic apparatus and method

1983

5554418243Acoustic projection stereophonic system
5564414430Decoders for feeding irregular loudspeaker arrays
5574408095Acoustic apparatus
5584392019Surround sound system
5594382157Multiple speaker type sound producing system
5604369335Two-channel, four loudspeaker-component enhanced sterophonic system

1982

5614352953Multichannel non-discrete audio reproduction system
5624316058Sound field transmission system surrounding a listener

1981

5634293821Audio channel separating apparatus
5644282605Sound reproducing with remote amplifying transducer
5654275267Ambience processor
5664266093Compatible four channel radio broadcast and receiving system
5674262170Microphone system for producing signals for surround-sound transmission and reproduction
5684251688Audio-digital processing system for demultiplexing stereophonic/quadriphonic input audio signals into 4-to-72 output audio signals
5694251685Reproduction of sound

1980

5704236039Signal matrixing for directional reproduction of sound
5714230905Stereophonic system with discrete bass channels
5724219696Sound image localization control system
5734218583Varying loudspeaker spatial characteristics
5744186281Multichannel record disc reproducing apparatus

1979

5754176252Multi-dimensional audio projector
5764152550Apparatus for reproducing a multichannel record disc
5774152542Multichannel matrix logic and encoding systems
5784151369Sound reproduction systems
5794149031Multichannel matrix logic and encoding systems
5804139729Sound reproduction system with matrixing of power amplifier outputs
5814132859Sound reproducing apparatus

1978

5824121059Sound field expanding device
5834119798Binaural multi-channel stereophony
5844118599Stereophonic sound reproduction system
5854115666Discrete 4-channel stereo recording and/or reproducing system compatible with matrix systems
5864112255Rota-phonic system for stereo quadrophonic sound system
5874107478Angle modulated wave demodulation system
5884105865Audio distributor
5894096360Multichannel record disc reproducing system
5904096353Microphone system for producing signals for quadraphonic reproduction
5914095049Non-rotationally-symmetric surround-sound encoding system
5924086433Sound reproduction system with non-square loudspeaker lay-out
5934085291Synthetic supplementary channel matrix decoding systems
5944081606Sound reproduction systems with augmentation of image definition in a selected direction
5954075425Multi-directional sound signal reproducing system
5964074083Stereophonic sound system particularly useful in a cinema auditorium
5974072821Microphone system for producing signals for quadraphonic reproduction
5984070552Multi-directional stereo multiple recording apparatus with constant acceleration cutting

1977

5994060696Binaural four-channel stereophony
6004042779Coincident microphone simulation covering three dimensional space and yielding various directional outputs
6014027107Multiple channel FM stereo system
6024024344Center channel derivation for stereophonic cinema sound
6034021612Decoder apparatus applicable to matrix 4-channel systems of different types
6044021610Control circuit for a matrixed four channel audio reproducing system
6054018992Decoder for quadraphonic playback
6064006313Transmitting and reproducing system having improved noise reduction characteristics for quadraphonic audio information signals
6074006306Audio signal processing apparatus
6084004095System for time sharing an audio amplifier
6094002840Angle-modulated signal transmission system
6104001518Discrete four-channel disc reproducing system

1976

6113997725Multidirectional sound reproduction systems
6123992590Matrix amplifying circuit
6133989903Multi-directional sound signal recording and/or reproducing system with crosstalk compensation means
6143987256Grooved record playback system with multiple transducers
6153985978Method and apparatus for control of FM beat distortion
61639859644-Channel stereophonic demodulating system
6173983500Angle modulated wave demodulation system
6183983334Matrix and equalizer circuit with gain control
6193982071Multichannel sound signal processing system employing voltage controlled amplifiers
6203982069Decoding apparatus for use in matrix four channel systems of a plurality of types
62139795644-Channel stereo recording and reproducing method
6223970788Monaural and stereo compatible multidirectional sound matrixing
6233968331Encoding and decoding system for quadraphonic sound
6243967063Logic for matrix systems for reproducing quadraphonic sound
6253959590Stereophonic sound system
6263958085Compatible 4-2-4 encoding-decoding system
6273953686Multichannel record disc recording system
6283952157Matrix four-channel decoding system
6293947637Signal composing circuit
6303946165Method and apparatus for control of crosstalk in multiple frequency recording
6313944941Switching circuit for use with balanced transformerless amplifier
6323944755Composite filter circuit
6333944735Directional enhancement system for quadraphonic decoders
6343943303Abnormal sound eliminating system in record disc reproducing apparatus
6353943287Apparatus and method for decoding four channel sound
6363943286Variable gain control circuit
6373940698Muting circuit
6383940559Compatible four channel recording and reproducing system
6393937885Control circuit for a matrixed four channel audio reproducing system
6403936619Four-channel stereophonic reproducing system for reproducing discrete CD-4 four-channel stereo disc
6413936618Multichannel record disc reproducing system and apparatus
6423934087Angle modulated wave demodulation system
6433934086Matrix four-channel decoding system
6443932706Signal synthesizing system adaptable for discrete four-channel sound reproducing system and matrix four-channel sound reproducing system
6453931482Four-channel stereophonic reproducing system for reproducing discrete four-channel stereophonic discs
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017