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2017

19609434Device and method for driving a sound system and sound system
29609409Use of an earpiece acoustic opening as a microphone port for beamforming applications
39609405Slim profile loudspeaker
49602916Signal processing device, signal processing method, measurement method, and measurement device
59602914Porting audio using a connector in a small form factor electronic device
69601132Method and apparatus for managing audio signals
79596554Methods circuits devices systems and associated computer executable code for acquiring acoustic signals
89596551Hearing aid device comprising a sensor member
99595259Sound source-separating device and sound source-separating method
109591404Beamformer design using constrained convex optimization in three-dimensional space
119584936Method for controlling sound in an auditorium
129584910Sound gathering system
139584887Rigging system locking mechanism
149578440Method for controlling a speaker array to provide spatialized, localized, and binaural virtual surround sound
159578413Audio processing system and audio processing method
169577710Engaging terminal devices
179571929Sound accessory device and operating method thereof
189571925Systems and methods of reducing acoustic noise
199571924Speaker array apparatus and method for setting speaker array apparatus
209565493Array microphone system and method of assembling the same
219560463Multistage minimum variance distortionless response beamformer
229560450Speaker array apparatus
239560441Determining speaker direction using a spherical microphone array
249560440Apparatus and method for detecting location of moving body, lighting apparatus, air conditioning apparatus, security apparatus, and parking lot management apparatus
259554208Concurrent sound source localization of multiple speakers
269554203Sound source characterization apparatuses, methods and systems
279554091Identifying conference participants and active talkers at a video conference endpoint using user devices
289549245Speakerphone and/or microphone arrays and methods and systems of using the same
299549244Directivity control system, directivity control method, sound collection system and sound collection control method
309544693Device for emitting an acoustic wave
319544692System and apparatus for boomless-microphone construction for wireless helmet communicator with siren signal detection and classification capability
329538290Coaxial loudspeaker arrangement
339538289Control parameter dependent audio signal processing

2016

349532151Body worn sound processors with directional microphone apparatus
359532140Listen to people you recognize
369532134Sound pickup apparatus
379530406Apparatus and method for recognizing voice
389525934Steering vector estimation for minimum variance distortionless response (MVDR) beamforming circuits, systems, and methods
399525931Playback based on received sound waves
409521502Method for determining a stereo signal
419521484Multi-beam sound system
429521482Sound receiving device
439516412Directivity control apparatus, directivity control method, storage medium and directivity control system
449510104Electroacoustic transducer, manufacturing method therefor, and electronic device utilizing same
459510090Device and method for capturing and processing voice
469510089Dynamic location determination for a directionally controllable parametric emitter
479510068Automatic equalization of loudspeaker array
489508332Guitar amplifier
499503818Method and apparatus for processing signals of a spherical microphone array on a rigid sphere used for generating an ambisonics representation of the sound field
509503809Beam-forming device
519501472System and method for dual screen language translation
529497539Variable directional microphone
539497538Variable directional microphone
549497528Cotalker nulling based on multi super directional beamformer
559497526Speaker apparatus and methods useful in conjunction therewith
569491543Method and device for improving audio signal quality in a voice communication system
579485574Spatial interference suppression using dual-microphone arrays
589479870Passive loudspeaker multiplexer
599479867Method and circuitry for direction of arrival estimation using microphone array with a sharp null
609473869Audio signal processing device
619473868Microphone adjustment based on distance between user and microphone
629473855Moving armature receiver assemblies with vibration suppression
639473850Voice signals improvements in compressed wireless communications systems
649473849Sound source direction estimation apparatus, sound source direction estimation method and computer program product
659473848Transmission line loudspeaker
669473841Acoustic source separation
679472180Headset and a method for audio signal processing
689467772Acoustical signal generator using two transducers and a reflector with a non-flat contour
699462391Vertically and horizontally balanced subwoofer
709462372Unidirectional condenser microphone unit
719462362Microphone support device for sound source localization
729462213Video display device
739460732Signal source separation
749460727Audio encoder for wind and microphone noise reduction in a microphone array system
759456278Speaker device
769451356Multi-directivity sound device
779445195Directivity control method and device
789445194Sound source separating apparatus, sound source separating program, sound pickup apparatus, and sound pickup program
799445170Speaker apparatus and methods useful in conjunction therewith
809439019Sound signal processing method and apparatus
819438985System and method of detecting a user's voice activity using an accelerometer
829435926Light guide body, relay apparatus, and speaker apparatus
839432767Headphone with microphones that processes external sound pickup by the microphones and inputs external source sound signal
849432757Adjustable speaker rigging system
859431013Co-talker nulling for automatic speech recognition systems
869426598Spatial calibration of surround sound systems including listener position estimation
879426576Loudspeaker and electrodynamic acoustic transducer with bulbous waveguide tip
889426567Electronic device for microphone operation
899426562Passive group delay beam forming
909426561Microphone arrangement with improved directional characteristic
919426553Microphone array arrangement structure in vehicle cabin
929425708Apparatus and methods for individual addressing and noise reduction in actuator arrays
939420372Method and apparatus for processing signals of a spherical microphone array on a rigid sphere used for generating an ambisonics representation of the sound field
949420368Time-frequency directional processing of audio signals
959418676Audio signal processor, method, and program for suppressing noise components from input audio signals
969414153Directivity control apparatus, directivity control method, storage medium and directivity control system
979414152Audio and power signal distribution for loudspeakers
989407996Wide dynamic range microphone
999393898Electrical and physical mounting assemblies
1009392379Output phase modulation entrainment containment for digital filters
1019392360Steerable sensor array system with video input
1029392359Variable directivity electret condenser microphone
1039392357Method and apparatus for enhanced stimulation of the limbic auditory response
1049391541Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith
1059387514Low frequency electro acoustic transducer and method of generating acoustic waves
1069384447Passive tracking of underwater acoustic sources with sparse innovations
1079380387Phase independent surround speaker
1089380262Mobile terminal and method for operating same
1099374641Device and method for driving a sound system and sound system
1109374639Audio apparatus and method of changing sound emission mode
1119369796Electronic device
1129363618Method and device for controlling speaker array sound field based on quadratic residue sequence combinations
1139363595Microphone unit, and sound input device provided with same
1149357327Loudspeaker system for reproducing multi-channel sound with an improved sound image
1159357293Methods and systems for Doppler recognition aided method (DREAM) for source localization and separation
1169357292Implementation of microphone array housing receiving sound via guide tube
1179357280Apparatus having an acoustic display
1189351071Audio source position estimation
1199351060Modular quick-connect A/V system and methods thereof
1209344800Loudspeaker array element
1219338556Electroacoustic transducer, manufacturing method thereof, and electronic device utilizing same
1229338549Acoustic localization of a speaker
1239338538Multi-microphone system
1249337794Array microphone device and gain control method
1259332346Processing of multi-device audio capture
1269332336Headphone device
1279332211Mobile terminal and audio zooming method thereof
1289330673Method and apparatus for performing microphone beamforming
1299327628Automobile headrest
1309326084Multi lobe stereo loudspeaker in one cabinet
1319326068Signal connecting module, electronic device, and connector identification method thereof
1329326065Sound processing device, and sound processing method
1339326064Microphone array configuration and method for operating the same
1349326060Beamforming in varying sound pressure level
1359319788Sound processing device, and sound processing method
1369319786Microphone mounting structure of mobile terminal and using method thereof
1379319785Technique for localizing sound source
1389313600Method and apparatus of adjusting distribution of spatial sound energy
1399313453Localization algorithm for conferencing
1409307335Device for estimating placement of physical objects
1419307324Speaker
1429306148Oscillator device and electronic apparatus
1439303863Integrated light and microphone system
1449301044Acoustic apparatus
1459301033Directional microphone and operating method thereof
1469297409Adjustable joint for microphone
1479294839Augmentation of a beamforming microphone array with non-beamforming microphones
1489294833Sound collection device
1499294207Method and device for controlling the broadcasting of audio contents by two loudspeakers
1509282407Electronic device sound reproduction system
1519282385Digital loudspeaker with enhanced performance
1529281827Clock generator
1539271077Method and system for directional enhancement of sound using small microphone arrays
1549271075Signal processing apparatus and signal processing method
1559270244System and method to detect close voice sources and automatically enhance situation awareness
1569268522Devices and methods for conveying audio information in vehicles
1579264805Method for determining a set of filter coefficients for an acoustic echo compensator
1589264799Method and apparatus for acoustic area monitoring by exploiting ultra large scale arrays of microphones
1599264798Dual cartridge directional microphone
1609264797Directional microphone device, acoustic signal processing method, and program
1619264789Equal expansion rate symmetric acoustic transformer
1629264524Microphone array transducer for acoustic musical instrument
1639263062Vibration sensor and acoustic voice activity detection systems (VADS) for use with electronic systems
1649258645Adaptive phase discovery
1659258644Method and apparatus for microphone beamforming
1669258639Method and apparatus for creating personal sound zone
1679257132Dominant speech extraction in the presence of diffused and directional noise sources
1689254995Multi-port device package
1699253578Directional loudspeaker
1709247364Variable aperture phased array incorporating vehicle swarm
1719247359Transducer, a hearing aid comprising the transducer and a method of operating the transducer
1729247339Loudspeaker design
1739247192Mobile terminal and audio zooming method thereof
1749241123Electronic device
1759237392Earhole-wearable sound collection device, signal processing device, and sound collection method
1769237391Low noise differential microphone arrays
1779232309Microphone array processing system
1789232306Systems and methods for reducing stray magnetic flux

2015

1799226062Techniques to mitigate the effect of blocked sound at microphone arrays in a telepresence device
1809223538Interactive sound reproducing
1819219974Method and apparatus for simultaneously controlling near sound field and far sound field
1829219954Acoustic horn manifold
1839215542Apparatus and method for measuring a plurality of loudspeakers and microphone array
1849215527Multi-band integrated speech separating microphone array processor with adaptive beamforming
1859215524Acoustic horn manifold
1869215520Multi-function synthetic jet and method of manufacturing same
1879210499Spatial interference suppression using dual-microphone arrays
1889204212Multiple aperture speaker assembly
1899191768Diffracted sound reduction device, diffracted sound reduction method, and filter coefficient determination method
1909191746Loudspeaker driver with dual electromagnet assemblies
1919191736Microphone apparatus
1929191735Microphone features relating to a portable computing device
1939191734Loudspeaker
1949191733Headphone apparatus and sound reproduction method for the same
1959185498Hearing device with two or more microphones and two or more resonators having different lengths and the same resonant frequency
1969179214Audio equipment and oscillation unit
1979173025Combined suppression of noise, echo, and out-of-location signals
1989171551Unified microphone pre-processing system and method
1999167369Speaker array apparatus
2009167345Method and device of channel equalization and beam controlling for a digital speaker array system
2019167326In-wall multiple-bay loudspeaker system
2029161150Audio rendering device and audio rendering method
2039147347Vehicle direction identification device, vehicle direction identification method and program therefor
2049143856Apparatus and method for spatially selective sound acquisition by acoustic triangulation
2059137599Underwater sensor arrays linearized by weight and buoyance distribution
2069132331Microphone array and method of use
2079131314Acoustic system
2089131294Apparatus including microphone arrangements
2099131041Using an auxiliary device sensor to facilitate disambiguation of detected acoustic environment changes
2109128874Method of using microphones to measure particle velocity
2119124978Speaker array apparatus, signal processing method, and program
2129124969Loudspeaker rigging system having upwardly extending connecting links
2139124220Differential microphone with dual polarity bias
2149121752Acoustic measurement device
2159119012Loudspeaker beamforming for personal audio focal points
2169119002Equalization of an audio signal
2179118997Speaker device and filter coefficient generating device therefor
2189100749System and method for directionally radiating sound
2199100737Microphone boom
2209094746Block resistant microphone port design
2219088851Thermoacoustic device array
2229088849Loudspeaker
2239088723Server, client terminal, and program
2249087506Passive acoustical filters incorporating inserts that reduce the speed of sound
2259084062Conversation detection apparatus, hearing aid, and conversation detection method
2269084057Compact acoustic mirror array system and method
2279084048Audio systems and methods employing an array of transducers optimized for particular sound frequencies
2289084045Acoustic transducer assembly
2299084038Method of controlling audio recording and electronic device
2309071908Loudspeaker with a wave guide
2319071895Satellite microphones for improved speaker detection and zoom
2329066191Apparatus and method for generating filter characteristics
2339066186Light-based detection for acoustic applications
2349066172Acoustic waveguide and computing devices using same
2359055371Controllable playback system offering hierarchical playback options
2369049533Audio system phase equalization

2014

2378908872BTSC encoder
2388892432Signal processing system, apparatus and method used on the system, and program thereof
2398879741Speaker array apparatus and sound beam control method
2408873781Method for operating a hearing device having reduced comb filter perception and hearing device having reduced comb filter perception
2418861764Microphone unit and sound input device incorporating same
2428837750Device and method for manipulating an audio signal
2438831761Method for determining a processed audio signal and a handheld device
2448774424Apparatus for reproduction of sound
2458654992Sound processing apparatus, method for correcting phase difference, and computer readable storage medium
2468630727Closed loop analog signal processor ("CLASP") system
2478630428Display device and audio output device

2013

2488571232Apparatus and method for a complete audio signal
2498565445Combining audio signals based on ranges of phase difference
2508559654Range finding audio system
2518553893Sound processing device, speaker apparatus, and sound processing method
2528520862Audio system
2538483411Method and an apparatus for processing a signal
2548477964Method and device for phase-sensitive processing of sound signals
2558391510Sound reproduction system comprising a loudspeaker enclosure with ports, and associated processing circuit
2568385556Parametric stereo conversion system and method
2578369536Sound system, sound reproducing apparatus, sound reproducing method, monitor with speakers, mobile phone with speakers
2588363851Speaker array apparatus for forming surround sound field based on detected listening position and stored installation position information

2012

2598340321Method and device for phase-sensitive processing of sound signals
2608325941Method and apparatus to shape sound
2618320584Method and system for performing audio signal processing
2628306243Audio device
2638306242Heyser spiral low frequency correction of FIR filters
2648300872Method and device for detecting a displacement and movement of a sound producing unit of a woofer
2658300846Appratus and method for preventing noise
2668295508Processing an audio signal
2678284954BTSC encoder
2688275151Speakerphone using adaptive phase rotation
2698265299Method and an apparatus for processing an audio signal
2708259960Phase layering apparatus and method for a complete audio signal
2718233647Television set
2728223992Speaker array apparatus
2738199931Parametric loudspeaker with improved phase characteristics
2748199925Loudspeaker array audio signal supply apparatus
2758194884Aligning time variable multichannel audio
2768194872Multi-channel adaptive speech signal processing system with noise reduction
2778194863Speaker system
2788150054Adaptive filter in a sensor array system
2798135142Method for reducing interferences of a directional microphone
2808130966Method for performance measurement and optimization of sound systems using a sliding band integration curve
2818116483Speaker device with the phase changing device for varying the phase of the audio signal
2828111843Compensation for nonuniform delayed group communications

2011

2838085950Sound signal processing apparatus and sound signal processing method
2848054992High frequency compensating
2858050424Speaker system, audio amplifier and audio system
2868009838Electrostatic loudspeaker array
2878005233Bass enhancement for audio
2887986795Method and apparatus for protecting media content against unauthorized duplication
2897970152Method and device for matching the phases of microphone signals of a directional microphone of a hearing aid
2907936886Speaker system to control directivity of a speaker unit using a plurality of microphones and a method thereof
2917920710Loudspeaker apparatus
2927886869Acoustic waveguide mode controlling

2010

2937856283Digital microphone interface, audio codec and methods for use therewith
2947837006Enhanced spectrum acoustic energy projection system
2957831053System and method for matching microphones
2967778427Phase compensation techniques to adjust for speaker deficiencies
2977720237Phase equalization for multi-channel loudspeaker-room responses
2987711127Apparatus, method and program for processing acoustic signal, and recording medium in which acoustic signal, processing program is recorded
2997706558Automated system for adjusting line array speakers
3007702111Audio stereo processing method, device and system
3017676047Electroacoustical transducing with low frequency augmenting devices
3027657039Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same

2009

3037606377Method and system for surround sound beam-forming using vertically displaced drivers
3047593533Sound system and method of sound reproduction
3057561707Hearing aid system
3067529376Directional speaker control system
3077477752Loudspeaker system

2008

3087382888Phase shifting audio signal combining
3097369666Audio reproducing system

2007

3107298854Apparatus, methods and articles of manufacture for noise reduction in electromagnetic signal processing
3117292697Audio reproducing system
3127251333Method and apparatus for creating a virtual third channel in a two-channel amplifier
3137242782Audio signal processing circuit
3147177431Dynamic decorrelator for audio signals

2006

3157139402Sound reproduction device
3167123724Sound system
3177113604Apparatus and method for matching the response of microphones in magnitude and phase
3187039201Audio signal phase detection system and method

2005

3196940990Multi-channel audio center speaker device
3206931138Zoom microphone device
3216851512Modular microphone array for surround sound recording
3226845163Microphone array for preserving soundfield perceptual cues

2004

3236831987Directional microphone assembly
3246829359Multispeaker sound imaging system
3256826284Method and apparatus for passive acoustic source localization for video camera steering applications
3266807281Loudspeaker and method of driving the same as well as audio signal transmitting/receiving apparatus
3276801631Speaker system with multiple transducers positioned in a plane for optimum acoustic radiation pattern
3286782104Method and device intended for the picking up of sounds, for their recording and their play-back, and reproducing the natural sensation of a sound space
3296768702Baffled ring directional transducers and arrays
3306766033Modular bass arraying
3316763118High directivity microphone array
3326760449Microphone array system
3336740805Sound system and method for creating a sound event based on a modeled sound field
3346739424Speaker system
3356738482Noise suppression system with dual microphone echo cancellation
3366690804Lighted microphone cable indicator
3376683964Direction finder

2003

3386633647Method of custom designing directional responses for a microphone of a portable computer
3396628793Speaker system
3406628792Back to back mounted compound woofer with compression/bandpass loading
3416622817Sound reproduction device working according to the bending wave principle
3426621909Horn loudspeaker and loudspeaker systems
3436567526Directional microphone assembly
3446560344Miniature surface mounted directional microphone assembly
3456556687Super-directional loudspeaker using ultrasonic wave
3466535610Directional microphone utilizing spaced apart omni-directional microphones

2002

3476473514High directivity microphone array
3486459798Sound-collecting device
3496444892Sound system and method for creating a sound event based on a modeled sound field
3506430293Recording and play-back two-channel system for providing a holophonic reproduction of sounds
3516404701Encapsulated volumetric acoustic array in the shape of a towed body
3526385327Device having two coaxially disposed bodies which are movable relative to one another along a translation axis
3536373955Loudspeakers

2001

3546301034Pulsed laser microphone
3556285772Noise control device
3566285771Directional microphone assembly
3576243138Camera including means for acquiring bi-directional sound
3586239348Sound system and method for creating a sound event based on a modeled sound field
3596173059Teleconferencing system with visual feedback
3606168030Multiple microphone support device

2000

3616158902Boundary layer microphone
3626154553Sound bubble structures for sound reproducing arrays
3636151399Directional microphone system providing for ease of assembly and disassembly
3646134334Directional microphone assembly
3656128395Loudspeaker system with controlled directional sensitivity
3666075869Directional microphone assembly
3676047077Bipolar speaker
3686023514System and method for factoring a merged wave field into independent components

1999

3695940118System and method for steering directional microphones
3705920350Camera including means for acquiring bi-directional sound
3715901232Sound system that determines the position of an external sound source and points a directional microphone/speaker towards it
3725898138Loudspeaker having horn loaded driver and vent
3735881156Portable, multi-functional, multi-channel wireless conference microphone
3745878147Directional microphone assembly
3755862240Microphone device

1998

3765848172Directional microphone
3775848170Acoustic antenna for computer workstation
3785836790Radio telephone connector
3795832077Microphone/loudspeaker having a speakerphone mode and a microphone/loudspeaker mode
3805828768Multimedia personal computer with active noise reduction and piezo speakers
3815812685Non-directional speaker system with point sound source
3825812675Sound reproducing array processor system
3835804906Sound generating device
3845802190Linear speaker array
3855787183Microphone system for teleconferencing system
3865781645Loudspeaker system
3875778083Global sound microphone system
3885764778Hearing aid headset having an array of microphones
3895760825Sound pickup system comprising a video system for the setting of parameters and setting method
3905750943Speaker array with improved phase characteristics
3915748757Collapsible image derived differential microphone
3925745588Differential microphone assembly with passive suppression of resonances
3935745584Sound bubble structures for sound reproducing arrays
3945742693Image-derived second-order directional microphones with finite baffle
3955717766Stereophonic sound reproduction apparatus using a plurality of loudspeakers in each channel

1997

3965689570Sound reproducing array processor system
3975684882System for selective sound capture for reverberant and noisy environment
3985664021Microphone system for teleconferencing system
3995648936Method for acoustic near field scanning using conformal arrayal
4005613011Microphone assembly mounted to a bezel which frames a monitor screen of a computer
4015602962Mobile radio set comprising a speech processing arrangement
4025594804Multiple cone type loudspeaker

1996

4035590214Vertical array type speaker system
4045590207Sound reproducing array processor system
4055590094System and methd for reproducing sound
4065574793Automated conference system
4075561737Voice actuated switching system
4085546458Handsfree communication apparatus
4095546360Electrically steered acoustic lens
4105526433Tracking platform system
4115526430Pressure gradient type microphone apparatus with acoustic terminals provided by acoustic passages
4125524059Sound acquisition method and system, and sound acquisition and reproduction apparatus
4135517570Sound reproducing array processor system
4145515445Long-time balancing of omni microphones
4155506908Directional microphone system
4165490599Long multi-position microphone support stand
4175488956Ultrasonic transducer array with a reduced number of transducer elements

1995

4185473701Adaptive microphone array
4195463694Gradient directional microphone system and method therefor
4205452363Direction sensing microphone system using time differential
4215432857Dual bandpass secondary source
4225430260Speaker system
4235427102Active noise cancellation apparatus in MRI apparatus
4245406638Automated conference system
4255402502Sound output system
4265388163Electret transducer array and fabrication technique
4275388162Sound innovation speaker system
4285386479Piezoelectric sound sources

1994

4295367506Sound collecting system and sound reproducing system
4305357587Distortion reduction in loudspeakers
4315335282Signal summing non-microphonic differential microphone
4325335011Sound localization system for teleconferencing using self-steering microphone arrays
4335323466Tandem transducer magnet structure
4345309518Multiple driver electroacoustical transducing

1993

4355266751Cluster of loudspeaker cabinets having adjustable splay angle
4365260920Acoustic space reproduction method, sound recording device and sound recording medium
4375253301Nondirectional acoustic generator and speaker system
4385233664Speaker system and method of controlling directivity thereof
4395227591Loudspeaker arrangement
4405196755Piezoelectric panel speaker

1992

4415164549Sonic wave generator
4425123500Loudspeaker enclosure
4435119431Efficiency loudspeaker
4445097514Equilateral tetrahedral speaker system
4455088574Ceiling speaker system

1991

4465058171Microphone arrangement
4475058170Array microphone
4485051964Virtual microphone apparatus and method
4495025473Hemispherical speaker system
4505007707Integrated sound and video screen
4515000286Modular loudspeaker system
4524991687Speaker system having directivity
4534989254Electro-acoustic transducer and manufacturing process

1990

4544969196Speaker and horn array
4554965775Image derived directional microphones
4564923031High output loudspeaker system
4574916675Broadband omnidirectional electroacoustic transducer
4584890689Omnidirectional speaker system

1989

4594888807Variable pattern microphone system
4604881265Apex loudspeaker
4614878561Sound emitter
4624870691Load and dispersion cell for sound
4634862508Method for large-scale multiple source sound reinforcement
4644847904Ambient imaging loudspeaker system
4654845759Sound source having a plurality of drivers operating from a virtual point
4664837826Stereophonic baffle
4674823327Electroacoustic transducer
4684799265Electrostatic transducer unit

1988

4694773095Hearing aid with locating microphones
4704742548Unidirectional second order gradient microphone

1987

4714703506Directional microphone apparatus
4724675906Second order toroidal microphone
4734673057Geometrical transducer arrangements
4744665550Electrodynamic loudspeaker having omnidirectional sound emission
4754653606Electroacoustic device with broad frequency range directional response

1986

4764585090Isotrophic loudspeaker
4774572325Stereophonic baffle

1985

4784559642Phased-array sound pickup apparatus
4794553628Speaker system
4804503554Stereophonic balance control system
4814503553Loudspeaker system

1984

4824485484Directable microphone system
4834472834Loudspeaker system
4844472605Electrodynamic loudspeaker for low and medium sound frequencies
4854442323Microphone with vibration cancellation
4864436966Conference microphone unit
4874429190Continuous strip electret transducer array

1983

4884412097Variable-directivity microphone device
4894410063Loudspeaker system
4904399328Direction and frequency independent column of electro-acoustic transducers
4914399327Variable directional microphone system

1982

4924354059Variable-directivity microphone device
4934338489Headphone construction
4944313521Speaker housing
4954312420Sound diffusion plant with very low directivity
4964311874Teleconference microphone arrays

1981

4974308425Variable-directivity microphone device
4984268719Loudspeaker arrangements

1980

4994241432Transducer-reflector system
5004233472Loudspeaker combination, comprising a plurality of dynamic loudspeakers, which are arranged adjacent each other in substantially one continuous plane
5014223760Loudspeaker assembly
5024182931360 Degree speakers

1979

5034179008Structure and arrangement for loudspeaker assemblage
5044156800Piezoelectric transducer

1978

5054119799Critical alignment loudspeaker system

1977

5064042778Collapsible speaker assembly
5074030563Speaker system of cubic configuration
5084027111Ribbon loudspeaker

1976

5093995124Noise cancelling microphone
5103978353Piezoelectric acoustic speaker system
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017