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2017

19609434Device and method for driving a sound system and sound system
29609427User terminal apparatus, electronic device, and method for controlling the same
39607630Prevention of unintended distribution of audio information
49606952System with speaker, transceiver and related devices
59602673Systems and methods for monitoring sound during an in-building emergency
69596552Features and optimizations for personal communication device based public addressing system
79596538Wearable audio mixing
89591422Method and apparatus for audio interference estimation
99591402Transmit audio in a target space
109591396Ear set device
119591392Headset-derived real-time presence and communication systems and methods
129590727Wireless communication system and transmitter
139584940Wireless exchange of data between devices in live events
149584937Movie theater headset
159584936Method for controlling sound in an auditorium
169584935Multi-zone media system and method for providing multi-zone media
179584913Themed ornaments with internet radio receiver
189584087Post-processing gains for signal enhancement
199578418System and method for controlling output of multiple audio output devices
209565284Systems and methods for automatically connecting a user of a hands-free intercommunication system
219561449LED lighting device and wireless speaker
229560437Time heuristic audio control
239558747High intelligibility voice announcement system
249554225Devices and methods for audible indicators emanating from selected locations
259554211Wireless speaker unit
269549270Devices and methods for audible indicators emanating from selected locations
279549258Audio output balancing
289549245Speakerphone and/or microphone arrays and methods and systems of using the same
299547997Methods, systems, and devices for multi-user improvement of reading comprehension using frequency altered feedback
309544707Audio output balancing
319544705Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources
329544701Base properties in a media playback system
339544682Apparatus, method and article for providing audio of different programs
349538305Calibration error conditions
359538300Audio synchronization among playback devices using offset information
369538299Acoustic echo cancellation (AEC) with conferencing environment templates (CETs)
379538011Mobile microphone system portal app for meetings

2016

389532153Method and a system of providing information to a user
399532145Low-profile speaker
409532129Earphone line control device and earphone
419531855System and method of arbitrating audio source streamed by mobile applications
429529906Low-latency audio networking
439529431Directional sound systems including eye tracking capabilities and related methods
449525953Method and apparatus for transit system annunciators
459525952Real-time audience attention measurement and dashboard display
469524723Information processing apparatus and control method
479524098Methods and systems for subwoofer calibration
489521496Media content playback system and method
499521489Operation using positioning information
509521488Playback device setting based on distortion
519521487Calibration adjustment based on barrier
529520843Power amplifiers coupled in series
539520250Mobile device assisted smart building control
549519454Acoustic signatures
559516445Media content based on playback zone awareness
569516441Intelligent amplifier activation
579516440Providing a multi-channel and a multi-zone audio environment
589516419Playback device setting according to threshold(s)
599513157Selective audio/sound aspects
609510164Haptic effects broadcasting during a group event
619510116High definition distributed sound system
629510089Dynamic location determination for a directionally controllable parametric emitter
639510068Automatic equalization of loudspeaker array
649508332Guitar amplifier
659507560Device playback failure recovery and redistribution
669503801Panel device
679501259Audio output device to dynamically generate audio ports for connecting to source devices
689497537Conference apparatus
699495362Fragmented video systems
709485596Utilizing a smartphone during a public address system session
719485588Mapping system and method
729485564System of sound reproduction with audio headsets provided with sound processors, components of such a system and associated method
739479881Wireless communication apparatus, wireless communication system, and data processing method
749479861Compact wideband bass and midrange horn-loaded speaker system
759478247Management of media content playback
769473864Internet protocol addressable public address devices and systems
779473863System and method for improving audio capture quality in a living room type environment
789473822Multiuser audiovisual control
799473260Method for performing announcements in a means of transport
809467791System and method for adaptive audio signal generation, coding and rendering
819462401Method for operating a public address system
829462386Wired, wireless, infrared, and powerline audio entertainment systems
839462115Unified communications system and method
849460631Systems, methods, apparatus, and articles of manufacture for playback demonstration at a point of sale display
859456279Automatic control and grouping of media playback devices based on user detection
869455677Wireless audio control apparatus
879454951Electronic device
889452711Apparatus and method for controlling output of horn of vehicle
899445208Emission of a commencement sound and a conclusion sound
909445193Electronic device directional audio capture
919443530Acoustic echo cancellation
929439022Playback device speaker configuration based on proximity detection
939439021Proximity detection using audio pulse
949438996Systems and methods for calibrating speakers
959438993Methods and devices to generate multiple-channel audio recordings
969438976Multifunctional wireless LED device and a multifunctional wireless speaker system
979437210Audio signal processing
989432555System and method for AV sync correction by remote sensing
999432365Streaming music using authentication information
1009430927Environmental detection sound system
1019426552Road vehicle
1029426551Distributed wireless speaker system with light show
1039426405System and method of determining the appropriate mixing volume for an event sound corresponding to an impact related events and determining the enhanced event audio
1049426300Matching reverberation in teleconferencing environments
1059422736Entertainment venue and associated systems/methods
1069414153Directivity control apparatus, directivity control method, storage medium and directivity control system
1079414152Audio and power signal distribution for loudspeakers
1089414142Wireless bath fan speaker
1099408008Playback zone representations
1109407989Closed audio circuit
1119406456Smart electrical switch with audio capability
1129401687Voice alarm amplifier
1139400632Playback according to playback responsibility in stereo pair
1149398373Direct selection of audio source
1159395951Audio content auditioning
1169395950Audio content auditioning
1179392386Audio signal adjustment for mobile phone based public addressing system
1189392353Headset interview mode
1199392350Audio communication system with merging and demerging communications zones
1209390724Voice controlled assistant with coaxial speaker and microphone arrangement
1219384723Method of retrieving processing properties and audio processing system
1229384639Rigid fixture for coupling one or more transducers to the upper back of the human body
1239384447Passive tracking of underwater acoustic sources with sparse innovations
1249374641Device and method for driving a sound system and sound system
1259373245Smart notification appliances
1269370720Gaming systems for noise suppression and selective sound amplification
1279369104Audio output balancing
1289367611Detecting improper position of a playback device
1299367285Themed ornaments with internet radio receiver
1309363601Audio output balancing
1319361874Varying adaptive filter step size in acoustic echo cancellation
1329357327Loudspeaker system for reproducing multi-channel sound with an improved sound image
1339357298Sound signal processing apparatus, sound signal processing method, and program
1349354656Method and apparatus for dynamic channelization device switching in a synchrony group
1359351077Systems and methods for independent and control-isolated audio processing (ICIAP)
1369351072Multi-band harmonic discrimination for feedback suppression
1379351060Modular quick-connect A/V system and methods thereof
1389349363Audio signal processing system and echo signal removing method thereof
1399349264Haptic effects broadcasting during a group event
1409348354Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices without a voltage controlled crystal oscillator
1419344829Indication of barrier detection
1429344821Dynamically providing to a person feedback pertaining to utterances spoken or sung by the person
1439344820Method, apparatus, and system for mass audio notification field
1449344802Information providing system
1459344800Loudspeaker array element
1469344206Method and apparatus for updating zone configurations in a multi-zone system
1479338304Bidirectional communication system and method for compensating for undesired feedback in the bidirectional communication system
1489337793Orthogonal ergonomic speaker
1499337790System and method for enhancing comprehensibility through spatialization
1509332348Media content request including zone name
1519326071Media content suggestion based on playback zone awareness
1529326070Media content based on playback zone awareness
1539326068Signal connecting module, electronic device, and connector identification method thereof
1549325285Method of reducing un-correlated noise in an audio processing device
1559319815Managing audio output through an intermediary
1569319766Wireless speaker and retractable ear bud
1579313591Audio synchronization among playback devices using offset information
1589313574Wireless digital transmission system for loudspeakers
1599313569Networked gaming headset
1609313453Localization algorithm for conferencing
1619312913Echo cancellation apparatus, echo cancellation method and communications apparatus
1629311909Sensed sound level based fan speed adjustment
1639307340Audio system equalization for portable media playback devices
1649307333Networked sound masking system
1659304735Audio content auditioning by playback device
1669301069Immersive 3D sound space for searching audio
1679300258Method and device for driving digital speaker based on code conversion
1689294059Acoustic device and method of reproducing acoustic signal
1699288597Distributed wireless speaker system with automatic configuration determination when new speakers are added
1709282420Method and system for multi-channel mixing for transmission of audio over a network
1719282402Audio system with integrated power, audio signal and control distribution
1729277340Sound output system, information processing apparatus, computer-readable non-transitory storage medium having information processing program stored therein, and sound output control method
1739277338Audio control system and electronic device using same
1749271115Method and system for providing a social music service using an LBS, and recording medium for recording a program for executing the method
1759271096Delay unit for a conference audio system, method for delaying audio input signals, computer program and conference audio system
1769271069Microphone housing arrangement for an audio conference system
1779264839Playback device configuration based on proximity detection
1789264835Exposing off-host audio processing capabilities
1799258428Audio bandwidth extension for conferencing
1809252721Power decrease based on packet type
1819247363Playback queue transfer in a media playback system
1829247362Hands-free cellular telephone enabled spa
1839247339Loudspeaker design
1849246442Power increase based on packet type
1859245514Speaker with multiple independent audio streams
1869241214Direct sound extraction device and reverberant sound extraction device
1879232335Networked speaker system with follow me
1889232329Public address system using wireless mobile communication devices
1899232307Mobile microphone system and method
1909232296Method and apparatus for transmitting wireless audio streams

2015

1919226087Audio output balancing during synchronized playback
1929226073Audio output balancing during synchronized playback
1939226072Media content based on playback zone awareness
1949226058Media assembly for a structural support
1959226053Digital speaker driving apparatus
1969219974Method and apparatus for simultaneously controlling near sound field and far sound field
1979219967Multiuser audiovisual control
1989219959Multi-channel pairing in a media system
1999218017Systems and methods for controlling media players in a synchrony group
2009213357Obtaining content from remote source for playback
2019213356Method and apparatus for synchrony group control via one or more independent controllers
2029210525Sound field control apparatus and sound field control method
2039210523System and method for modular on-demand audio processing, amplification and distribution
2049210509System and method for directional sound transmission with a linear array of exponentially spaced loudspeakers
2059197339Isolator device for passing through a signal
2069196432Smart electrical switch with audio capability
2079195258System and method for synchronizing operations among a plurality of independently clocked digital data processing devices
2089191730Two-in-one ear buds with a light-up cable
2099189011Method and apparatus for providing audio and playback timing information to a plurality of networked audio devices
2109189010Method and apparatus to receive, play, and provide audio content in a multi-zone system
2119185479Microphone module and microphone system having the microphone module
2129182777System and method for synchronizing operations among a plurality of independently clocked digital data processing devices
2139179236System and method for adaptive audio signal generation, coding and rendering
2149176520Obtaining and transmitting audio
2159176519Method and apparatus for causing a device to join a synchrony group
2169173044Method and system for delivering announcements in a cabin
2179170600Method and apparatus for providing synchrony group status information
2189167333Headset dictation mode
2199164724Audio adjustment system
2209164533Method and apparatus for obtaining audio content and providing the audio content to a plurality of audio devices in a multi-zone system
2219164532Method and apparatus for displaying zones in a multi-zone system
2229164531System and method for synchronizing operations among a plurality of independently clocked digital data processing devices
2239161129Arranging an audio signal based on the number of loudspeakers
2249158327Method and apparatus for skipping tracks in a multi-zone system
2259154871Condenser microphone
2269154870Sound generation device, sound generation method and storage medium storing sound generation program
2279154185Managing audio output through an intermediary
2289148721System, method and apparatus for silent true bypass switching
2299146899System and method of arbitrating audio source streamed by mobile applications
2309143861Wireless audio player and speaker system
2319143595Multi-listener headphone system with luminescent light emissions dependent upon selected channels
2329141645User interfaces for controlling and manipulating groupings in a multi-zone media system
2339131317Sharing public addressing system using personal communication devices in an ad-hoc network
2349131316Sharing public addressing system using personal communication devices in an ad-hoc network
2359131295Multi-microphone audio source separation based on combined statistical angle distributions
2369124969Loudspeaker rigging system having upwardly extending connecting links
2379119002Equalization of an audio signal
2389119000Modular speaker system
2399118999Equalization of speaker arrays
2409118997Speaker device and filter coefficient generating device therefor
2419117437Noise cancelling headphone
2429113264Speakerphone and/or microphone arrays and methods and systems of the using the same
2439113034Method and apparatus for processing audio in video communication
2449107020System and method for wireless microphone apparent positioning
2459106192System and method for device playback calibration
2469100736Control of an adaptive feedback cancellation system based on probe signal injection
2479094742Event drivable N X M programmably interconnecting sound mixing device and method for use thereof
2489093062Multilingual speech recognition and public announcement
2499084058Sound field calibration using listener localization
2509076430Sound masking system
2519076328Acoustic guiding system
2529071913Network system for audio equipment, method and computer program
2539071911Method and system of controlling media devices configured to output signals to surrounding area
2549071906Wireless audio player and speaker system
2559060040Themed ornament with streaming video display
2569055377Personal communication device with hearing support and method for providing the same
2579055375Gaming system and method for dynamic noise suppression
2589042575Processing audio signals
2598938078Method and system for enhancing sound
2608937530Radio frequency identification tags adapted for localization and state indication
2618934639Modification of audio signals for distribution in a room

2014

2628917885Loop gain estimating apparatus and howling preventing apparatus
2638917883Electronic device and audio accessory having a plurality of passive switches for controlling the audio device
2648903526Device playback failure recovery and redistribution
2658879748Multi-protocol wireless audio client device
2668873767Audio or audio/visual interactive entertainment system and switching device therefor
2678737639Voice amplification assembly
2688737638Audio signal processing device, audio signal processing system, and audio signal processing method
2698737634Wide area noise cancellation system and method
2708725277Audio home network system
2718724826Apparatus and method for outputting an audio signal in a portable terminal
2728670573Low latency ultra wideband communications headset and operating method therefor
2738654995Audio control system for a vehicle
2748649527Amplifier circuit, electronic device, method for configuring an amplifier circuit
2758649523Methods and systems using a compensation signal to reduce audio decoding errors at block boundaries

2013

2768620005All-digital speaker system device
2778594340Transmitter
2788588432Apparatus and method for authorizing reproduction and controlling of program transmissions at locations distant from the program source
2798577053Ticketing and/or authorizing the receiving, reproducing and controlling of program transmissions by a wireless device that time aligns program data with natural sound at locations distant from the program source
2808570184Method and system for controlling, guiding and warning
2818553902Multi-channel broadcasting system using digital matrix amplifier and method of controlling the same
2828538036Directed acoustic sound system
2838532311Digital audio communication and control in a live performance venue
2848520858Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources
2858477976Method for the detection of whistling in an audio system
2868452027Audio conference system
2878428273Wireless digital transmission system for loudspeakers
2888422692Audio distribution system
2898411875Speaker control via audio connection
2908401681System and method for placeshifting media playback
2918391501Method and apparatus for mixing priority and non-priority audio signals
2928379874Apparatus and method for time aligning program and video data with natural sound at locations distant from the program source and/or ticketing and authorizing receiving, reproduction and controlling of program transmissions

2012

2938340326Addressable amplified speaker assembly and method for addressing the same
2948340317Stereo audio-signal processing system
2958339249Paging and notification mechanism for emergency warning system over cellular networks
2968320594Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor
2978320574Methods and systems for reducing acoustic echoes in communication systems
2988315408Prevention of audio pop in a digital audio device
2998306239Public-address system
3008300867Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor
3018300866Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor
3028290174Apparatus and method for authorizing reproduction and controlling of program transmissions at locations distant from the program source
3038270631Multi-channel audio amplification apparatus
3048265938Voice alert methods, systems and processor-readable media
3058265295Method and apparatus for identifying feedback in a circuit
3068265294Public address system utilizing power transmission medium communication
3078243953Method and apparatus for identifying a feedback frequency in a signal
3088229132Microphone apparatus
3098229131Systems and methods for delivering directional audio and personalized emergency alerts via addressable speakers
3108218788Anti-feedback device and anti-feedback method
3118208649Methods and systems for robust approximations of impulse responses in multichannel audio-communication systems
3128204249Methods and systems for reducing acoustic echoes in multichannel audio-communication systems
3138199927Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
3148190438Targeted audio in multi-dimensional space
3158175297Ad hoc sensor arrays
3168160734Changing time intervals of the occurence of audio information from local and remote sites
3178155362Wireless listening system
3188155339Air-droppable loudspeaker
3198116473Output phase modulation entrainment containment for digital filters
3208111840Echo reduction system
3218111837Data-driven media management within an electronic device
3228098841Sound field controlling apparatus

2011

3238085967Reversible speaker grill attachment
3248085947Multi-channel echo compensation system
3258077877Courtesy announcement system and method of using
3268068927Changing time intervals of the occurrence of audio information from local and remote sites
3278045730Methods and systems for reducing acoustic echoes in communication systems
3288014544Computer installed stereo PA amplifier card
3297995770Apparatus and method for aligning and controlling reception of sound transmissions at locations distant from the sound source
3307925031Audio system with feedback detection means
3317912230Howling detection device and method
3327912228Device and method for operating voice-supported systems in motor vehicles
3337899195Adaptive howling canceller

2010

3347844063Hearing and apparatus with compensation of acoustic and electromagnetic feedback signals
3357840014Sound apparatus with howling prevention function
3367826628Addressable amplified speaker assembly and method for addressing the same
3377778426Feedback suppression in sound signal processing using frequency translation
3387773761Method and apparatus to generate an audio beam with high quality
3397760888Howling suppression device, program, integrated circuit, and howling suppression method
3407706553Auto-mute command stream by voice-activated remote control
3417643642Method and system for operating accessory controls

2009

3427629894Methods and systems for controlling directional sounders for route guidance
3437627287On-channel repeater
3447602925Audio feedback processing system
3457558635Control device and control method for fixing an information output order for several information sources, especially audio sources
3467529670Automatic speech recognition system for people with speech-affecting disabilities
3477483538Wireless and wired speaker hub for a home theater system

2008

3487469052Portable sound system, apparatus, and method
3497436971Mixing signal-path setting apparatus and program
3507433821Methods and systems for intelligibility measurement of audio announcement systems
3517426278Sound device provided with a geometric and electronic radiation control
3527424119Voice matching system for audio transducers
3537376476Methods for changing time intervals of the occurrence of audio information from local and remote sites
3547343018System of sound transducers with controllable directional properties
3557319763Power amplification for parametric loudspeakers

2007

3567266927Drive-in movie theater with short range sound system
3577227959Multi-channel digital feedback reducer system
3587203324Audio feedback processing system
3597197148System for controlling remote speakers using centralized amplifiers, centralized monitoring and master/slave communication protocol

2006

3607136495Loudspeaker device
3617110552Personal listening device for arena events
3627106868Active noise control for vehicle door noise
3637099483Sound control system, sound control device, electronic device, and method for controlling sound
3647068795Public address system and method for an urban transit vehicle
3657054451Sound reinforcement system having an echo suppressor and loudspeaker beamformer
3667027604Circuit to prevent acoustic feedback for a cellular speakerphone

2005

3676947566Method and apparatus for a portable public address system
3686931136Infrared emitter
3696876298Audible warning for vehicle safety systems

2004

3706813360Audio conferencing with three-dimensional audio encoding
3716810127Clear sound side fill center fill
3726788983Audio trigger devices
3736778966Segmented mapping converter system and method
3746760690Background noise eliminating apparatus and method, and storage medium storing program realizing such method
3756690802Adjustable speaker box for the sports bar of a vehicle
3766675125Statistics generator system and method

2003

3776643376Method and apparatus for individual control of audio to loudspeakers located from a central control
3786557664Loudspeaker
3796522761Directionally sensitive pointing microphone
3806522754Digital vehicle microphone system and method
3816516072Loudspeaker
3826504936Amplifier signal distribution module

2002

3836442280Apparatus detecting howling by decay profile of impulse response in sound system
3846385322Method and device for operation of a public address (acoustic irradiation) system
3856373955Loudspeakers
3866359990Parametric ring emitter
3876347148Method and apparatus for feedback reduction in acoustic systems, particularly in hearing aids

2001

3886329908Addressable speaker system
3896321278Automatically detecting a connection into a computer system standardized connector for disabling a front speaker
3906282297Angle adjustment structure for speaker system
3916275580Teleconferencing device having acoustic transducers positioned to improve acoustic echo return loss
3926256394Transmission system for correlated signals
3936198829Process and device for focusing acoustic waves
3946192135Dearticulator

2000

3956148003Information distribution system
3966147593Message output controller and system
3976125188Compact personal monitor system
3986125115Teleconferencing method and apparatus with three-dimensional sound positioning
3996122620System for the radio transmission of real-time airline flight information
4006098743Acoustical speaker housing and method of installation
4016091826Method for implementing a sound reproduction system for a large space, and a sound reproduction system
4026072879Sound field control unit and sound field control device
4036069844Acoustic annunciator for audio tracking collars
4046052471Smart audio receiver that automatically select an input audio source
4056015026Acoustical diffuser assembly and method of installation
4066015025Diffuser panel with built-in speaker arrangement and methods of installation

1999

4075993314Method and apparatus for interactive audience participation by audio command
4085953432Line source speaker system
4095953429Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles
4105941905Public alarm for cochlear implant
4115940118System and method for steering directional microphones
4125923002Acoustical room paneling and method of installation
4135889843Methods and systems for creating a spatial auditory environment in an audio conference system
4145886621Talking poster
4155860023Device for getting sophisticated data and voice information from audience
4165859915Lighted enhanced bullhorn

1998

4175818382Long range RF tag
4185812674Method to simulate the acoustical quality of a room and associated audio-digital processor
4195809153Electroacoustical transducing
4205802190Linear speaker array
4215761320Audio distribution system having programmable zoning features
4225734964Mass programmable FM stereo sound equalized assistive listening apparatus
4235710422Talking poster

1997

4245666428Audio distribution system
4255649019Digital apparatus for reducing acoustic feedback
4265640459Portable voice amplifier
4275625697Microphone selection process for use in a multiple microphone voice actuated switching system
4285617331Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles
4295609320Method and apparatus for mounting a bowling scoring monitor
4305606624Audio apparatus demonstrating
4315596647Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles

1996

4325577128Audio distribution system with controllable volume override
4335576685Sound generation apparatus responsive to environmental conditions for use in a public space
4345572592Remote control audio apparatus for hunters
4355548272Talking poster
4365541998Health club audio system
4375524059Sound acquisition method and system, and sound acquisition and reproduction apparatus
4385522089Personal digital assistant module adapted for initiating telephone communications through DTMF dialing
4395483371Lightwave distribution system for audio and video services and terminal equipment therefor
4405481478Broadcast system for a facility

1995

4415479516Loudspeaker demonstrating
4425463693Voice amplification adapter assembly for face mask
4435459813Public address intelligibility system
4445440644Audio distribution system having programmable zoning features
4455434912Audio processing system for point-to-point and multipoint teleconferencing
4465432858Enhanced concert audio system
4475426706Remote simultaneous interpretation system
4485412734Apparatus and method for reducing acoustic feedback
4495406634Intelligent speaker unit for speaker system network
4505404343Resting place marker with audio system
4515398287Voice activated multiple microphone electroacoustic amplifier system
4525392455Transducer with integrated switch element
4535384854Co-processor controlled switching apparatus and method for dispatching console
4545383079Portable information reproducing and voice amplifying apparatus

1994

4555369710Sound field correcting apparatus and method
4565363434Audio distribution system
4575349480Portable audio apparatus
4585333202Multidimensional stereophonic sound reproduction system
4595303109Portable information reproducing and voice amplifying apparatus

1993

4605273437Audience participation system
4615266751Cluster of loudspeaker cabinets having adjustable splay angle
4625255322Multi-zone audio distribution amplifier
4635233663Simultaneous interpretation system
4645233661Sound field variable apparatus
4655225944Portable audio apparatus
4665214543Portable audio apparatus having a power savings device
4675208717Portable information reproducing and voice amplifying apparatus

1992

4685159703Silent subliminal presentation system
4695153914Sound equipment system
4705148491Automatic mixer apparatus
4715131051Method and apparatus for controlling the sound field in auditoriums
4725131048Audio distribution system
4735125732Motion picture exhibition facility
4745121426Loudspeaking telephone station including directional microphone
4755119428Electro-acoustic system
4765115470Sound reinforcement system
4775109423Audio system with amplifier and signal device
4785109419Electroacoustic system

1991

4795077801Foreground music system using current amplification
4805058169Public address system
4815004067Cinema sound system for unperforated screens
4824991219Sound simulation chamber

1990

4834955059Speaker power matching method and apparatus
4844953218Foreground music system using current amplification
4854896360Public address amplifier

1989

4864881123Voice override and amplitude control circuit
4874837829Acoustic sound system for a room
4884831656Conference microphone for use with hearing impaired amplification system
4894823908Directional loudspeaker system
4904821329Audio switch device with timed insertion of substitute signal
4914815559Portable loudspeaker apparatus for use in live performances
4924805728Sound system with anechoic enclosure

1988

4934777529Auditory subliminal programming system
4944763360Passenger entertainment system having direct coupled seat receivers
4954736115Control circuit with plural individual selectable controls
4964723292Voice evacuation system

1986

4974630305Automatic gain selector for a noise suppression system
4984630304Automatic background noise estimator for a noise suppression system
4994628529Noise suppression system
5004598418Sound system employing automatic proportional amplification
5014596041Participant-identification recording and playback system
5024593404Method of improving the acoustics of a hall
5034586195Microphone range finder
5044569076Motion picture theater loudspeaker system

1985

5054513284Console priority control
5064496022System for interrelating sound transducers or sound sources and their environment
5074491699Communication apparatus for hostile environments

1984

5084489442Sound actuated microphone system
5094479265Laser microphone
5104475232Fireman's safety apparatus
5114437189Sound system for a musical instrument

1983

5124412105Laser microphone
5134400591Simulated space helmet
5144385814System for controlling distinct devices in a theater
5154378468Methods and apparatus for alleviating sound-coupled feedback in conference room sound systems
5164374435Passenger entertainment system transducer failure detector

1982

5174359602Multiple input audio program system
5184354061Sensing coil in hearing aid

1981

5194306388Restaurant entertainment system
5204296664Sound broadcasting apparatus
5214287388Drive-in theatre sound distribution system
5224283600Recirculationless concert hall simulation and enhancement system
5234276572Automatic message announcement system
5244275269Public address system

1980

5254237341Portable self-contained amplifier and loudspeaker apparatus
5264237339Audio teleconferencing
5274184050Drink service system

1979

5284166926Portable lectern and voice amplifier
5294165487Low power system and method for communicating audio information to patrons having portable radio receivers

1978

5304114973Power supply for transportable devices
5314109107Method and apparatus for frequency compensation of electro-acoustical transducer and its environment
5324107464Alarm communications system
5334100380Supervisory circuit for monitoring speaker coils
5344095261Audio tape recorder, editor and amplifying system
5354090033Miniature portable public address system
5364076957Portable sound device for public address

1977

5374061876Electronic sound enhancing system
5384052561Lectern with detent-hinged shelf for portable sound system
5394025722Method and apparatus for recording
5404010324Background noisemasking system

1976

5413999014Padded furniture for reverent atmosphere
5423992586Boardroom sound reinforcement system
5433989908Speaker supervision in a public address system
5443980827Diversity system for noise-masking
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017