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2017

19609429Microphone
29602930Dual diaphragm microphone
39602924Microphone with programmable frequency response
49599648Capacitive sensor
59596995Pressure sensor, acoustic microphone, blood pressure sensor, and touch panel
69596547MEMS microphone with spring suspended backplate
79593009Apparatus comprising and a method for manufacturing an embedded MEMS device
89591417Extreme low frequency acoustic measurement system
99591408Adjustable ventilation openings in MEMS structures
109584941Micromechanical digital loudspeaker
119584903MEMS device and process
129584889System and method for packaged MEMS device having embedding arrangement, MEMS die, and grille
139580299MEMS device and method of making a MEMS device
149578424Frequency modulated microphone system
159575116Apparatus and method for testing a capacitive transducer and/or associated electronic circuitry
169571938Microphone element and device for detecting acoustic and ultrasound signals
179565488Micro-electro-mechanical system devices
189560454Acoustic transducer
199554214Signal processing platform in an acoustic capture device
209549263Acoustic transducer and microphone
219548632Oscillators for wireless power transfer
229544697Acoustic transducer and microphone
239544696Flexible, shapeable free-form electrostatic speakers
249544678Printed circuit board with an acoustic channel for a microphone
259544673Microphone with built-in speaker driver
269537359Sub-apertures for wireless power transfer

2016

279530407Spatial audio database based noise discrimination
289525925Sensor with movable part and biasing
299521499Electronic device with large back volume for electromechanical transducer
309521491Capacitive sensor, acoustic sensor and microphone
319520505Capacitance type MEMS sensor
329518884Micro-electro-mechanical device and method for making the same
339517928Micromechanical functional apparatus, particularly a loudspeaker apparatus, and appropriate method of manufacture
349516428MEMS acoustic transducer, MEMS microphone, MEMS microspeaker, array of speakers and method for manufacturing an acoustic transducer
359516425Electrostatic speaker
369516424Micromechanical sensor system combination and a corresponding manufacturing method
379516420Transducer and electronic device including the same
389516415Double backplate MEMS microphone with a single-ended amplifier input port
399510121Transducer and method of controlling the same
409510120Apparatus and method for testing sound transducers
419510117Device for measuring sound level
429510107Double diaphragm MEMS microphone without a backplate element
439510106Microelectromechanical systems (MEMS) microphone having two back cavities separated by a tuning port
449510069Electromechanical transducer and method of producing the same
459503822Electroacoustic transducer
469503814Differential outputs in multiple motor MEMS devices
479502206Corrosion-resistant, strong x-ray window
489502019Elimination of 3D parasitic effects on microphone power supply rejection
499497529Microphone port with foreign material ingress protection
509493338Capacitance type sensor and method of manufacturing the same
519491539MEMS apparatus disposed on assembly lid
529491531Microphone device for reducing noise coupling effect
539488541Pressure sensor, microphone, and acoustic processing system
549487392Method of packaging integrated circuits and a molded package
559487389MEMS device and process
569485599Low-cost method for testing the signal-to-noise ratio of MEMS microphones
579485560Embedded circuit in a MEMS device
589479875Multi-mode microphones
599470910Transparent lens microphone
609470710Capacitive MEMS sensor devices
619467785MEMS apparatus with increased back volume
629467774System and method for a PCM interface for a capacitive signal source
639462389Anti-impact silicon based MEMS microphone, a system and a package with the same
649462364Capacitance type sensor, acoustic sensor, and microphone
659456283Electrostatic electroacoustic transducer and fabricating methods for the same
669456274Digital electronic interface circuit for an acoustic transducer, and corresponding acoustic transducer system
679451366Component having a micromechanical microphone pattern
689445173System and method for a transducer system with wakeup detection
699444928Queueing voice assist messages during microphone use
709439017Method for manufacturing a plurality of microphone structures, microphone and mobile device
719438979MEMS sensor structure for sensing pressure waves and a change in ambient pressure
729438972Silicon based MEMS microphone, a system and a package with the same
739432759Surface mountable microphone package, a microphone arrangement, a mobile phone and a method for recording microphone signals
749428380Shielded encapsulating structure and manufacturing method thereof
759428379MEMS acoustic sensor with integrated back cavity
769426581Top port microelectromechanical systems microphone
779420380Acoustic transducer
789414175Microphone test procedure
799414165Acoustic sensor resonant peak reduction
809414139Acoustic transducer
819409763MEMS device and method of making a MEMS device
829407997Microphone package with embedded ASIC
839407996Wide dynamic range microphone
849403670MEMS device having a microphone structure, and method for the production thereof
859402138MEMS device and method of manufacturing a MEMS device
869402137Sound transducer with interdigitated first and second sets of comb fingers
879400224Pressure sensor and manufacturing method of the same
889391541Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith
899386380Method for the integration of a microelectromechanical systems (MEMS) microphone device with a complementary metal-oxide-semiconductor (CMOS) device
909383268Strain sensor, pressure sensor, microphone, blood pressure sensor, personal digital assistant, and hearing aid
919382109MEMS microphone with reduced parasitic capacitance
929380393Capacitance sensor, acoustic sensor, and microphone
939380392Microphone
949380381Microphone package and method for providing a microphone package
959380380Acoustic transducer and interface circuit
969374644Acoustic transducer and microphone
979374643Embedded dielectric as a barrier in an acoustic device and method of manufacture
989369809MEMS component for generating pressure pulses
999369808Acoustic transducer with high sensitivity
1009369804MEMS membrane overtravel stop
1019363617Semiconductor device having a base, a cavity, a diaphragm, and a substrate
1029363610MEMS process and device
1039363609Method for fabricating a cavity structure, for fabricating a cavity structure for a semiconductor structure and a semiconductor microphone fabricated by the same
1049363608Acoustic transducer
1059357296Switchable attenuation circuit for MEMS microphone systems
1069351084Packaging concept to improve performance of a micro-electro mechanical (MEMS) microphone
1079351082Capacitance-type transducer
1089351081Capacitive micromachined ultrasonic transducer (CMUT) with through-substrate via (TSV) substrate plug
1099351062Microphone unit
1109344809Digital acoustic low frequency response control for MEMS microphones
1119344808Differential sensing acoustic sensor
1129344807Capacitance-type transducer, acoustic sensor, and microphone
1139344806Component having a micro-mechanical microphone structure and method for producing the component
1149344805Micro-electromechanical system microphone
1159342179Strain sensing element, pressure sensor, microphone, blood pressure sensor, and touch panel
1169340413Integrated acoustic transducer in MEMS technology, and manufacturing process thereof
1179338560Top port multi-part surface mount silicon condenser microphone
1189338559Microphone system with a stop member
1199338557Acoustic generator, acoustic generation device, and electronic device
1209338546Circuit assembly for processing an input signal, microphone assembly and method for following an input signal
1219338538Multi-microphone system
1229337722Fast power-up bias voltage circuit
1239332354Micromechanical detection structure for a MEMS acoustic transducer and corresponding manufacturing process
1249329199MEMS tilt sensor
1259327967Micro-electro-mechanical transducer having an optimized non-flat surface
1269326081Microphone, acoustic sensor, and method of manufacturing acoustic sensor
1279321626Method of packaging a MEMS transducer device and packaged MEMS transducer device
1289319799Microphone package with integrated substrate
1299319798Capacitive transducer
1309319772Multi-floor type MEMS microphone
1319319765MEMS microphone assembly and method of manufacturing the MEMS microphone assembly
1329319764MEMS microphone packaging structure
1339307328Interposer for MEMS-on-lid microphone
1349301075MEMS microphone with out-gassing openings and method of manufacturing the same
1359301036Microphone and microphone device
1369301033Directional microphone and operating method thereof
1379299671Integrated CMOS back cavity acoustic transducer and the method of producing the same
1389290375Complementary metal oxide semiconductor (CMOS) ultrasonic transducers and methods for forming the same
1399287834Read-out for MEMS capacitive transducers
1409282415Electromechanical transducer and method for manufacturing the same which suppresses lowering of sensitivity while a protective layer is formed
1419277329Capacitive MEMS element including a pressure-sensitive diaphragm
1429277323Compact audio speaker
1439271087Microelectro-mechanical systems (MEMS) microphone package device and MEMS packaging method thereof
1449271067Transducer apparatus having a mechanical acoustic filter with movable blocking member
1459269831Micromechanical functional apparatus, particularly a loudspeaker apparatus, and appropriate method of manufacture
1469266713MEMS backplate, MEMS microphone comprising a MEMS backplate and method for manufacturing a MEMS microphone
1479264833Structure and method for integrated microphone
1489264832Microelectromechanical system (MEMS) microphone with protection film and MEMS microphonechips at wafer level
1499264815Silicon condenser microphone
1509260292Sensor device
1519258652Microphone structure
1529258651Transparent parametric transducer and related methods
1539258650Capacitive electromechanical transducer
1549258634Microphone system with offset apertures
1559253579Package for a MEMS sensor and manufacturing process thereof
1569247331Temperature compensated microphone
1579242275Complementary metal oxide semiconductor (CMOS) ultrasonic transducers and methods for forming the same
1589237402Integrated CMOS/MEMS microphone die
1599236275MEMS acoustic transducer and method for fabricating the same
1609232317Parametric transducer with graphene conductive surface
1619232302Microphone assemblies with through-silicon vias
1629227843Methods of manufacturing a MEMS device having a backplate with elongated protrusions

2015

1639226080Frequency dependent switch
1649226079Microelectromechanical sensing structure for a capacitive acoustic transducer including an element limiting the oscillations of a membrane, and manufacturing method thereof
1659221675Chip with integrated circuit and micro-silicon condenser microphone integrated on single substrate and method for making the same
1669219963Dual single-crystal backplate microphone system and method of fabricating same
1679216897Capacitive sensing structure with embedded acoustic channels
1689215519Reduced footprint microphone system with spacer member having through-hole
1699212046MEMS microphone with membrane antennas
1709210515Acoustic sensor
1719206038Capacitive micro-machined ultrasonic transducer and method of singulating the same
1729206031MEMS device and process
1739204224Electrostatic speaker
1749199837Acoustic sensor and method of manufacturing the same
1759197967Microphone and method to position a membrane between two backplates
1769193581MEMS microphone package structure having an improved carrier and a method of manufacturing same
1779181087Flat back plate
1789179221MEMS devices, interface circuits, and methods of making thereof
1799173015Microphone module with sound pipe
1809167352Microphone
1819161125High dynamic microphone system
1829161112Single-wire programmable MEMS microphone, programming method and system thereof
1839156684Methods of manufacture of top port surface mount MEMS microphones
1849154886Capacitive transducer manufacturing method, and multi-function device
1859150409Methods of manufacture of bottom port surface mount MEMS microphones
1869150403MEMS microphone device and method for making same
1879148731Top port surface mount MEMS microphone
1889148729Microphone with programmable frequency response
1899148726Micro electrical mechanical system with bending deflection of backplate structure
1909148712Micromechanical digital loudspeaker
1919143876Glitch detection and method for detecting a glitch
1929143870Microphone system with mechanically-coupled diaphragms
1939143869Electrostatic speaker
1949143849Sensor module
1959139422Bottom port surface mount MEMS microphone
1969139421Top port surface mount MEMS microphone
1979139418MEMS component
1989133020Methods of manufacture of bottom port surface mount MEMS microphones
1999133016MEMS microphone and method for manufacture
2009131319Component having a micromechanical microphone structure
2019131315MEMS microphone with a built-in textile material protecting screen
2029124220Differential microphone with dual polarity bias
2039118994Capacitance sensor, acoustic sensor, and microphone
2049113263VAD detection microphone and method of operating the same
2059113249Robust diaphragm for an acoustic device
2069111548Synchronization of buffered data in multiple microphones
2079108840MEMS microphone and method for packaging the same
2089107008Microphone with adjustable characteristics
2099100740Innovative magnetic design for speakers
2109096424Assembly of a capacitive acoustic transducer of the microelectromechanical type and package thereof
2119096423Methods of manufacture of top port multi-part surface mount MEMS microphones
2129094764Voice activity detection with capacitive touch sense
2139094741Multi-membrane microphone for high-amplitude audio capture
2149094111Receiver transducer for wireless power transfer
2159085012Ultrasonic transducer and ultrasonic diagnostic apparatus provided with same
2169084366Electric component having a shallow physical shape, and method of manufacture
2179084045Acoustic transducer assembly
2189083288High level capable audio amplification circuit
2199079760Integrated microphone package
2209078069MEMS microphone with springs and interior support
2219067780Methods of manufacture of top port surface mount MEMS microphones
2229066184Acoustic sensor and fabrication method thereof
2239066180Component having a micromechanical microphone structure
2249061318Complementary metal oxide semiconductor (CMOS) ultrasonic transducers and methods for forming the same
2259060227Shielded encapsulating structure and manufacturing method thereof
2269051171Bottom port surface mount MEMS microphone
2279042581Component having a micromechanical microphone structure, and method for manufacturing same
2288926517Flexible micro-electro-mechanical transducer

2014

2298875583Electromechanical transducer and method of manufacturing the same
2308861312MEMS microphone
2318855337Microphone and accelerometer
2328796901Micro-electro-mechanical transducer having an insulation extension
2338787116Collapsed mode operable cMUT including contoured substrate
2348760031Electromechanical transducer and method for manufacturing the same which suppresses lowering of sensitivity while a protective layer is formed
2358737171MEMS device and process
2368654614Capacitive electromechanical transducer
2378627725Capacitance type vibration sensor

2013

2388526271Capacitive micromachined ultrasonic transducer with voltage feedback
2398483412Variable pattern hanging microphone system with remote polar control
2408483014Micromachined ultrasonic transducers
2418456958Capacitive micro-machined ultrasonic transducer for element transducer apertures
2428451694Ultrasonic sensor unit and electronic device
2438451693Micromachined ultrasonic transducer having compliant post structure
2448398554Harmonic cMUT devices and fabrication methods
2458372011Asymmetric membrane cMUT devices and fabrication methods
2468363514Variable operating voltage in micromachined ultrasonic transducer
2478345513Stacked transducing devices

2012

2488247945Micro-electro-mechanical transducers
2498218286MEMS microphone with single polysilicon film
2508203912CMUTs with a high-k dielectric
2518182428Dual frequency band ultrasound transducer arrays
2528169855Ultrasonic sensor unit and electronic device
2538155356Structure and manufacturing method of electrostatic speaker
2548133182Multi-dimensional transducer array and beamforming for ultrasound imaging
2558120229Middle spring supported micro-electro-mechanical transducers
2568117919Micro-electro-mechanical system device
2578103025Surface mountable transducer system

2011

2588045733Silicon microphone with enhanced impact proof structure using bonding wires
2597982369Ultrasonic probe and ultrasonic diagnostic apparatus
2607940603Ultrasonic transducer cell
2617925033Electro-acoustic transducer
2627902615Micromechanical structure for receiving and/or generating acoustic signals, method for producing a micromechanical structure, and use of a micromechanical structure

2010

2637839722Microfabricated acoustic transducer with a multilayer electrode
2647839052Sensing membrane with stress releasing structure and micro-electro-mechanical system device using the same
2657800981High efficiency portable seismograph for measuring seismic tremor
2667727156Dual frequency band ultrasound transducer arrays
2677710371Variable volume between flexible structure and support surface

2009

2687626891Capacitive ultrasonic transducer and method of fabricating the same
2697612483Harmonic cMUT devices and fabrication methods
2707545075Capacitive micromachined ultrasonic transducer array with through-substrate electrical connection and method of fabricating same
2717530952Capacitive ultrasonic transducers with isolation posts
2727512038Ultrasonic transducer and manufacturing method
2737489593Electrostatic membranes for sensors, ultrasonic transducers incorporating such membranes, and manufacturing methods therefor

2008

2747359286Multi-level capacitive ultrasonic transducer

2007

2757284431Geophone

2006

2767016262Seismic sensor

2005

2776961437Capacitor microphone
2786950529System consisting of a microphone and an amplifier
2796947568Condenser microphone
2806944308Capacitive transducer
2816943448Multi-metal layer MEMS structure and process for making the same
2826940564Display substrate and display device
2836940211Electroactive polymers transducers and actuators
2846937735Microphone for a listening device having a reduced humidity coefficient
2856928178Condenser microphone and method for making the same
2866928173Capacitor microphone
2876920225Electret capacitor microphone
2886914992System consisting of a microphone and a preamplifier
2896911764Energy efficient electroactive polymers and electroactive polymer devices
2906904155Electret capacitor microphone
2916901804Method of manufacturing a membrane sensor
2926898294Microphone set
2936898292Electret microphone
2946885751Pressure-gradient microphone capsule
2956882733Surround headphone output signal generator
2966870939SMT-type structure of the silicon-based electret condenser microphone
2976870938Semiconductor electret capacitor microphone
2986870937Electroacoustic transducer, process of producing the same and electroacoustic transducing device using the same
2996859542Method of providing a hydrophobic layer and a condenser microphone having such a layer
3006847090Silicon capacitive microphone
3016845167Contacting arrangement for an electroacoustic microphone transducer
3026842964Process of manufacturing of electrostatic speakers

2004

3036831394Backing material for micromachined ultrasonic transducer devices
3046819769Electrolytic loudspeaker assembly
3056818092Multi-layer electret having ultra-high charge stability and method of manufacturing thereof
3066812624Electroactive polymers
3076812620Micromachined capacitive electrical component
3086806593Thin film electret microphone
3096804363Electroacoustic transducer
3106804362Electrostatic and electrolytic loudspeaker assembly
3116792123Electroacoustic transducer
3126788795Micromachined capacitive component with high stability
3136788794Thin, lightweight acoustic actuator tile
3146785393Audio transducers
3156781284Electroactive polymer transducers and actuators
3166760455Electrostatic loudspeaker with a distributed filter
3176756248Pressure transducer and manufacturing method thereof
3186753583Electrostatic electroacoustical transducer
3196748091Capacitor microphone and portable telephone using the capacitor microphone
3206744896Electret microphone
3216732588Pressure transducer
3226731766Condenser microphone and production method thereof
3236724058Method for producing a filled recess in a material layer, and an integrated circuit configuration produced by the method
3246721429Electro-magnetic microphone
3256708387Method for manufacturing condenser microphones
3266704427Acoustic transducer with improved acoustic damper
3276694032Electret condenser microphone
3286684484Method for manufacturing acoustical transducer with reduced parasitic capacitance
3296678383Capacitor microphone
3306677176Method of manufacturing an integrated electronic microphone having a floating gate electrode

2003

3316667189High performance silicon condenser microphone with perforated single crystal silicon backplate
3326664718Monolithic electroactive polymers
3336654473Condenser microphone
3346594369Electret capacitor microphone
3356584206Speaker apparatus
3366583533Electroactive polymer electrodes
3376571445Method for making acoustic transducer
3386570818Electroacoustic transducer
3396566728Semiconductor device
3406552469Solid state transducer for converting between an electrical signal and sound
3416545384Electroactive polymer devices
3426543110Electroactive polymer fabrication
3436535612Electroacoustic transducer with diaphragm securing structure and method
3446535460Miniature broadband acoustic transducer
3456532293Acoustical transducer with reduced parasitic capacitance
3466522762Silicon-based sensor system
3476512833Electret condenser microphone and method of producing same
3486510231Electroacoustic transducer

2002

3496483924Acoustic elements and method for sound processing
3506479878Semiconductor device and semiconductor electret condenser microphone
3516449370Digital electro-acoustic transducer
3526441451Pressure transducer and manufacturing method thereof
3536434245Compound electrolytic loudspeaker assembly
3546420203Method of producing semiconductor electret condenser microphone
3556417560Semiconductor device
3566393129Paper structures for speaker transducers
3576389902Micromechanical sensor and method for its production
3586381336Microphones for an implatable hearing aid
3596376971Electroactive polymer electrodes
3606366678Microphone assembly for hearing aid with JFET flip-chip buffer
3616357299Micromechanical sensor and method for producing the same
3626351541Electrostatic transducer
3636343129Elastomeric dielectric polymer film sonic actuator

2001

3646323049Method for manufacturing condenser microphone
3656310429Acoustic wave transducer device
3666304662Sonic emitter with foam stator
3676271620Acoustic transducer and method of making the same
3686249586Slot microphone
3696249075Surface micro-machined acoustic transducers
3706243474Thin film electret microphone
3716201874Electrostatic transducer with nonplanar configured diaphragm
3726188772Electrostatic speaker with foam stator
3736175636Electrostatic speaker with moveable diaphragm edges
3746169810Electroacoustic transducer

2000

3756154554Microphone
3766137891Variable geometry electromagnetic transducer
3776125189Electroacoustic transducer of digital type
3786111966Capacitor microphone
3796097821Electrostatic capacitance type transducer
3806088463Solid state silicon-based condenser microphone
3816084972Integrated microphone/amplifier unit, and amplifier module therefor
3826075867Micromechanical microphone
3836041129Hearing apparatus
3846023123Acoustic vibration generator

1999

3855978491Circuitry for improving performance of electret microphone
3865889872Capacitive microphone and method therefor
3875881158Microphones for an implantable hearing aid
3885870482Miniature silicon condenser microphone
3895862239Directional capacitor microphone system

1998

3905809155Assembling structure for capacitor microphone
3915802198Hermetically sealed condenser microphone
3925757090Folded dielectric film element and method for maufacturing the same
3935748567Acceleration sensor
3945745438Electrostatic transducer and method for manufacturing same

1997

3955677965Integrated capacitive transducer
3965627903Variable geometry electromagnetic transducer
3975600610Electrostatic transducer and method for manufacturing same

1996

3985590212Diaphragm for a capacitance type loudspeaker
3995573679Fabrication of a surface micromachined capacitive microphone using a dry-etch process
4005570428Transducer assembly
4015548658Acoustic Transducer
4025539834Baffled microphone assembly
4035511130Single diaphragm second order differential microphone assembly
4045490220Solid state condenser and microphone devices

1995

4055471540Electrostatic loudspeaker having stationary electrodes formed as multiple sheets insulated from each other
4065452268Acoustic transducer with improved low frequency response
4075408731Process for the manufacture of integrated capacitive transducers
4085408534Electret microphone assembly, and method of manufacturer
4095392358Electrolytic loudspeaker assembly
4105390254Hearing apparatus
4115388163Electret transducer array and fabrication technique
4125381299Capacitive pressure sensor having a substrate with a curved mesa

1994

4135363452Microphone for use in a vibrating environment
4145337011Pre-amplifier
4155335286Electret assembly
4165335210Integrated liquid crystal acoustic transducer
4175303210Integrated resonant cavity acoustic transducer
4185290400Fabrication method for microelectromechanical transducer

1993

4195272758Electret condenser microphone unit
4205255246Electroacoustic transducer of the electret type
4215233667Camcorder with a microphone
4225214709Hearing aid for persons with an impaired hearing faculty
4235208789Condenser microphones based on silicon with humidity resistant surface treatment
4245206914Electrostatic acoustic transducer having extremely thin diaphragm substrate
4255206557Microelectromechanical transducer and fabrication method

1992

4265161128Capacitive transducer system and method
4275151763Acceleration and vibration sensor and method of making the same
4285136656Probe microphone
4295101543Method of making a variable capacitor microphone
4305097515Electret condenser microphone

1991

4315054081Electrostatic transducer with improved bass response utilizing disturbed bass resonance energy
4325038459Method of fabricating the diaphragm unit of a condenser microphone by electron beam welding
4335014322Diaphragm unit of a condenser microphone, a method of fabricating the same, and a condenser microphone
4344993072Shielded electret transducer and method of making the same

1990

4354977590Signal level expansion apparatus as for a telecommunications system
4364922471Capacitive sound transducer
4374910840Electroacoustic transducer of the so-called "electret" type, and a method of making such a transducer
4384908805Electroacoustic transducer of the so-called "electret" type, and a method of making such a transducer
4394891843Electret microphone

1989

4404887300Pressure gradient microphone
4414885783Elastomer membrane enhanced electrostatic transducer
4424872148Ultrasonic transducer for use in a corrosive/abrasive environment
4434849071Method of forming a sealed diaphragm on a substrate
4444849050Method of producing a diaphragm on a substrate
4454837833Microphone with frequency pre-emphasis channel plate
4464817164Electrostatic discharge protector for an electret microphone
4474816125IC processed piezoelectric microphone
4484799265Electrostatic transducer unit
4494796725Electrostatic transducer

1988

4504790021Electrostatic transducer
4514783821IC processed piezoelectric microphone
4524767973Systems and methods for sensing position and movement
4534764690Electret transducing
4544757545Amplifier circuit for a condenser microphone system
4554730283Acoustic transducer with improved electrode spacing

1987

4564703509Electrostatic acoustic converter with stationary electrode having a progressively increasing surface resistance
4574701640Electret transducer and method of fabrication
4584697334Method of producing electroacoustic converters, preferably microphones, and converters produced according to the method
4594672849Semiconductor vibration detecting structure
4604648480Condenser microphone having resistance against high-temperature and radioactive rays

1986

4614626729Electroacoustic piezoelectric transducers
4624621171Electroacoustic transducer and a method for manufacturing thereof
4634615105Electroacoustic transducer and a method for manufacturing thereof
4644610062Method of making an acoustic microphone
4654607383Throat microphone
4664588867Ear microphone
4674586192Soundstage boundary expansion system
4684582961Capacitive transducer
4694571661Semiconductor vibration detection device with lever structure
4704571464Electret microphone
4714568414Methods and apparatus for tensioning sheet material
4724567445High input impedance low output impedance amplifier
4734567382Electret transducer and a method for manufacturing an assembly of backplate, electret foil and diaphragm plate

1985

4744558184Integrated capacitive transducer
4754542264Lead-frame for an electric microphone
4764541112Electroacoustic transducer system
4774539441Hearing-aid with integrated circuit electronics
4784533795Integrated electroacoustic transducer
4794533794Electrode for electrostatic transducer
4804524247Integrated electroacoustic transducer with built-in bias
4814516428Acceleration vibration detector
4824515997Direct digital loudspeaker
4834507705Vibration analyzing device
4844495541Apparatus for and method of making an electret tape
4854495385Acoustic microphone
4864492825Electroacoustic transducer
4874491697Condenser microphone

1984

4884489278Electrostatic voltage detecting device
4894467394Three plate silicon-glass-silicon capacitive pressure transducer
4904461931Frequency response equalizing network for an electrostatic loudspeaker
4914456796Unidirectional electret microphone
4924449236Anti-side tone transmitter
4934443666Electret microphone assembly
4944442324Encapsulated backplate for electret transducers
4954439642High energy ultrasonic transducer
4964439641Ultrasonic transducer for use in a vibratory environment
4974436648Electrically conducting thermoplastic material, its manufacture, and resulting article
4984434327Electret transducer with variable actual air gap
4994432237Ultrasonic transducer
5004430790Method of making a Josephson junction
5014429193Electret transducer with variable effective air gap
5024429192Electret transducer with variable electret foil thickness
5034429191Electret transducer with variably charged electret foil
5044429190Continuous strip electret transducer array
5054429189Electret transducer with a selectively metalized backplate
5064424419Electret microphone shield

1983

5074420790High sensitivity variable capacitance transducer
5084419545Electret transducer
5094418246Cell assembly for electret transducer
5104415948Electrostatic bonded, silicon capacitive pressure transducer
5114414433Microphone output transmission circuit
5124409441Ultrasonic transducer for use in a vibratory environment
5134403117Sonic transducer having diaphragm tensioning spring directly attached to diaphragm
5144401858Method for controlling wrinkles in a vibratile diaphragm
5154400634Bimorph transducer made from polymer material
5164392025Condenser microphone
5174389580Flexible tape electroacoustic transducer using an electret
5184385209Adjustment of operating characteristics of a telephone transmitter including an electret transducer
5194383139Electrostatic acoustic converter
5204382328Method of making stationary electrodes for electrostatic transducers
5214382196Tape transducer
5224380041Capacitor pressure transducer with housing

1982

5234366494Josephson junction and a method of making the same
5244361735Electret microphone circuit
5254360955Method of making a capacitive force transducer
5264345299Capacitive pressure transducer assembly with improved output lead design
5274344807Spiral winding of filaments
5284331840Electret transducer with tapered acoustic chamber
5294329732Precision capacitance transducer
5304329547Dual section electret microphone
5314323736Step-up circuit for driving full-range-element electrostatic loudspeakers
5324321432Electrostatic microphone
5334316062Electrostatic electroacoustic transducer
5344311881Electrostatic transducer backplate having open ended grooves

1981

5354308431Speaker with low mass driver
5364302634Spring force biasing means for a capacitance-type electrostatic transducer
5374302633Electrode plate electret of electro-acoustic transducer and its manufacturing method
5384301492Pressure-sensing transducer
5394292659Pressure sensing capacitive transducer
5404289936Electrostatic transducers
5414288735Vibrating electret reed voltage generator
5424287553Capacitive pressure transducer
5434286122Acoustic electrical conversion device with at least one capacitor electret element connected to an electronic circuit
5444281222Miniaturized unidirectional electret microphone
5454281221Condenser microphone
5464278852Earphone construction
5474268725Electret microphone
5484258235Pressure gradient electret microphone
5494250415Electromechanical transducers
5504249043Electret transducer backplate, electret transducer and method of making an electret transducer
5514246449Electrostatic transducer having optimum sensitivity and damping
5524246448Electromechanical transducer

1980

5534236051Electret microphone
5544225755Capacitive force transducer
5554215249Method and device for controlling wrinkles in a vibratile diaphragm
5564207442Driver circuit for electrostatic transducers
5574192977Highly directional ultrasonic electret transducer
5584188513Electret microphone with simplified electrical connections by printed circuit board mounting

1979

5594170721Microphone with molded block amplifier electrostatic
5604160882Double diaphragm electrostatic transducer each diaphragm comprising two plastic sheets having different charge carrying characteristics
5614160881Electret transducers: acoustically transparent backplate of sintered conductive spheres and a thin electret coating; meshlike diaphragm spacing screen overlays apertured electret backplate with screen junctions overlaying the apertures
5624151480FET Amplifier with protective circuit
5634151378Electrostatic microphone with damping to improve omnidirectionality, flatten frequency response, reduce wind noise
5644149095Monolithic structure for storing electrical charges
5654142073Temperature-stable electret microphone with embossed, small area, electret

1978

5664122302Two way dynamic and electrostatic speaker enclosure with side vent for greater high frequency dispersion
5674117275Non-directional electret microphone with an air passage to balance pressures on opposite sides of the diaphragm
5684105877Electrostatic loudspeaker having elastic diaphragm spacer elements cured in situ
5694093884Thin structures having a piezoelectric effect, devices equipped with such structures and in their methods of manufacture
5704085297Spring force biasing means for electroacoustical transducer components
5714081626Electrostatic transducer having narrowed directional characteristic
5724070741Method of making an electret acoustic transducer

1977

5734063050Acoustic transducer with improved electret assembly
5744046974Electroacoustic transducer with springs forming electrical interconnections as a result of assembly
5754042438Method of assembling a diaphragm assembly for an electro-acoustic transducer
5764037062Liquid crystal electromechanical transducer
5774034332Ultrasonic transmitting and receiving devices using dielectric transducers
5784025734Ambient noise shielded ear transceiver
5794016375Electret transducer
5804014091Method and apparatus for an electret transducer
5814006317Electrostatic transducer and acoustic and electric signal integrator
5824001519Pick-up cartridges for gramophone records

1976

5833992585Self-energizing electrostatic loudspeaker system
5843991285Microphone having an electrostatic cartridge having a structural electrical resistor
5853980838Plural electret electroacoustic transducer
5863963881Unidirectional condenser microphone
5873961202Power supply circuit for use with an electrostatic transducer
5883958662Tensioned diaphragm mounting for an electroacoustic transducer
5893949178Electret device having charge maintained by radioactivity
5903946422Electret transducer having an electret of inorganic insulating material
5913945112Technique for fabrication of foil electret
5923944756Electret microphone
5933942029Electrostatic transducer
5943941946Electrostatic transducer assembly
5953935397Electrostatic loudspeaker element
5963931469Crossover network for a multi-element electrostatic loudspeaker system
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017