СПИСОК патентов США - подгруппа МПК16 H04R19/01


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№ п/п Номер патента Название патента

2017

19602924Microphone with programmable frequency response
29571046Amplifier circuit for a two-wire interface
39544696Flexible, shapeable free-form electrostatic speakers

2016

49521492Condenser microphone
59497552Capacitive transducer, capacitive transducer manufacturing method, and object information acquisition apparatus
69491540Electret condenser microphone
79470910Transparent lens microphone
89467774System and method for a PCM interface for a capacitive signal source
99462394Splicing type electret loudspeaker
109456283Electrostatic electroacoustic transducer and fabricating methods for the same
119445212MEMS microphone module and manufacturing process thereof
129445188Condenser microphone
139426563MEMS speaker device with an electronic test circuit
149420365Silicon condenser microphone
159414174Method and apparatus for controlling audio output
169398389Apparatus for securing components in an electret condenser microphone (ECM)
179392359Variable directivity electret condenser microphone
189380381Microphone package and method for providing a microphone package
199380380Acoustic transducer and interface circuit
209369811Condenser microphone
219363608Acoustic transducer
229357296Switchable attenuation circuit for MEMS microphone systems
239350305Preamplifier circuit for a microelectromechanical capacitive acoustic transducer
249338560Top port multi-part surface mount silicon condenser microphone
259332342Microphone amplifier circuit
269319798Capacitive transducer
279307326Surface-mounted microphone arrays on flexible printed circuit boards
289301055Acoustic actuator plate structure
299301053Audio transducer with electrostatic discharge protection
309277329Capacitive MEMS element including a pressure-sensitive diaphragm
319258660Reset circuit for MEMS capacitive microphones
329247331Temperature compensated microphone
339241227Transducer with integrated sensor

2015

349226081Digital electret microphone and the connection structure thereof
359226080Frequency dependent switch
369179234Process for the production of a capacitor microphone and a capacitor microphone
379177879Sensor module
389167354Electroacoustic sound transducer
399156684Methods of manufacture of top port surface mount MEMS microphones
409150409Methods of manufacture of bottom port surface mount MEMS microphones
419148731Top port surface mount MEMS microphone
429148730Electrostatic speaker
439148729Microphone with programmable frequency response
449143876Glitch detection and method for detecting a glitch
459139422Bottom port surface mount MEMS microphone
469139421Top port surface mount MEMS microphone
479133020Methods of manufacture of bottom port surface mount MEMS microphones
489090453Sensor module and semiconductor chip
499084045Acoustic transducer assembly
509061893Methods of manufacture of top port multi-part surface mount silicon condenser microphones
519060229Low noise electret microphone
529051171Bottom port surface mount MEMS microphone

2014

538855339Electret loudspeaker device
548831253Electroacoustic apparatus with optical energy conversion function
558724839Unidirectional microphone
568699730Electret loudspeaker device

2012

578150078Electret condenser microphone
588138034Flexible electret transducer assembly, speaker, and method for fabricating flexible electret transducer assembly

2007

597287327Electret capacitor microphone and method for producing the same
607233674Integrated base and electret condenser microphone using the same

2005

616950529System consisting of a microphone and an amplifier
626940564Display substrate and display device
636937735Microphone for a listening device having a reduced humidity coefficient
646928178Condenser microphone and method for making the same
656920225Electret capacitor microphone
666914992System consisting of a microphone and a preamplifier
676904155Electret capacitor microphone
686898292Electret microphone
696870939SMT-type structure of the silicon-based electret condenser microphone
706870938Semiconductor electret capacitor microphone

2004

716818092Multi-layer electret having ultra-high charge stability and method of manufacturing thereof
726806593Thin film electret microphone
736804363Electroacoustic transducer
746731766Condenser microphone and production method thereof
756704427Acoustic transducer with improved acoustic damper
766684484Method for manufacturing acoustical transducer with reduced parasitic capacitance
776678383Capacitor microphone

2003

786654473Condenser microphone
796594369Electret capacitor microphone
806532293Acoustical transducer with reduced parasitic capacitance
816512833Electret condenser microphone and method of producing same

2002

826381336Microphones for an implatable hearing aid
836366678Microphone assembly for hearing aid with JFET flip-chip buffer
846351541Electrostatic transducer

2001

856323049Method for manufacturing condenser microphone
866310429Acoustic wave transducer device
876243474Thin film electret microphone
886169810Electroacoustic transducer

2000

896041129Hearing apparatus

1999

905978491Circuitry for improving performance of electret microphone
915889872Capacitive microphone and method therefor
925881158Microphones for an implantable hearing aid

1997

935677965Integrated capacitive transducer

1996

945570428Transducer assembly
955548658Acoustic Transducer

1995

965390254Hearing apparatus
975388163Electret transducer array and fabrication technique

1994

985337011Pre-amplifier
995335286Electret assembly

1993

1005272758Electret condenser microphone unit
1015255246Electroacoustic transducer of the electret type
1025214709Hearing aid for persons with an impaired hearing faculty
1035206914Electrostatic acoustic transducer having extremely thin diaphragm substrate

1992

1045101543Method of making a variable capacitor microphone
1055097515Electret condenser microphone

1991

1064993072Shielded electret transducer and method of making the same

1990

1074977590Signal level expansion apparatus as for a telecommunications system
1084910840Electroacoustic transducer of the so-called "electret" type, and a method of making such a transducer
1094908805Electroacoustic transducer of the so-called "electret" type, and a method of making such a transducer
1104891843Electret microphone

1989

1114887300Pressure gradient microphone
1124837833Microphone with frequency pre-emphasis channel plate
1134817164Electrostatic discharge protector for an electret microphone

1988

1144764690Electret transducing
1154730283Acoustic transducer with improved electrode spacing

1987

1164701640Electret transducer and method of fabrication
1174697334Method of producing electroacoustic converters, preferably microphones, and converters produced according to the method

1986

1184626729Electroacoustic piezoelectric transducers
1194607383Throat microphone
1204588867Ear microphone
1214571464Electret microphone
1224568414Methods and apparatus for tensioning sheet material
1234567445High input impedance low output impedance amplifier
1244567382Electret transducer and a method for manufacturing an assembly of backplate, electret foil and diaphragm plate

1985

1254542264Lead-frame for an electric microphone
1264524247Integrated electroacoustic transducer with built-in bias
1274495541Apparatus for and method of making an electret tape
1284492825Electroacoustic transducer
1294491697Condenser microphone

1984

1304456796Unidirectional electret microphone
1314443666Electret microphone assembly
1324434327Electret transducer with variable actual air gap
1334429193Electret transducer with variable effective air gap
1344429192Electret transducer with variable electret foil thickness
1354429191Electret transducer with variably charged electret foil
1364429190Continuous strip electret transducer array
1374429189Electret transducer with a selectively metalized backplate
1384424419Electret microphone shield

1983

1394418246Cell assembly for electret transducer
1404400634Bimorph transducer made from polymer material
1414389580Flexible tape electroacoustic transducer using an electret
1424385209Adjustment of operating characteristics of a telephone transmitter including an electret transducer
1434382196Tape transducer

1982

1444361735Electret microphone circuit
1454331840Electret transducer with tapered acoustic chamber
1464329547Dual section electret microphone

1981

1474302633Electrode plate electret of electro-acoustic transducer and its manufacturing method
1484288735Vibrating electret reed voltage generator
1494286122Acoustic electrical conversion device with at least one capacitor electret element connected to an electronic circuit
1504281222Miniaturized unidirectional electret microphone
1514268725Electret microphone
1524250415Electromechanical transducers
1534246448Electromechanical transducer

1980

1544236051Electret microphone
1554188513Electret microphone with simplified electrical connections by printed circuit board mounting

1979

1564160882Double diaphragm electrostatic transducer each diaphragm comprising two plastic sheets having different charge carrying characteristics
1574160881Electret 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
1584151480FET Amplifier with protective circuit
1594142073Temperature-stable electret microphone with embossed, small area, electret

1978

1604117275Non-directional electret microphone with an air passage to balance pressures on opposite sides of the diaphragm
1614093884Thin structures having a piezoelectric effect, devices equipped with such structures and in their methods of manufacture
1624070741Method of making an electret acoustic transducer

1977

1634063050Acoustic transducer with improved electret assembly
1644046974Electroacoustic transducer with springs forming electrical interconnections as a result of assembly
1654042438Method of assembling a diaphragm assembly for an electro-acoustic transducer
1664016375Electret transducer
1674014091Method and apparatus for an electret transducer

1976

1683991285Microphone having an electrostatic cartridge having a structural electrical resistor
1693980838Plural electret electroacoustic transducer
1703949178Electret device having charge maintained by radioactivity
1713946422Electret transducer having an electret of inorganic insulating material
1723945112Technique for fabrication of foil electret
1733942029Electrostatic transducer
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017