| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 07/31/2013 | CN101742388B Electronic device with electret electroacoustic transducer |
| 07/24/2013 | CN203086731U Mems麦克风 Mems Microphone |
| 07/24/2013 | CN103220610A MEMS (micro-electromechanical system) microphone and sound receiving device |
| 07/24/2013 | CN101651915B Electronic device and electric sound transducer thereof |
| 07/18/2013 | WO2013106141A1 Mems microphone with springs and interior support |
| 07/17/2013 | CN203072153U MEMS microphone |
| 07/17/2013 | CN203072152U Electrostatic loudspeaker with multichannel output |
| 07/17/2013 | CN203072151U High-fidelity?large-diaphragm?electret microphone |
| 07/17/2013 | CN203072150U Noise-reduction electret microphone |
| 07/17/2013 | CN103209379A Single-line programmable micro electromechanical system (MEMS) microphone and programming method and system thereof |
| 07/17/2013 | CN103209378A Speaker unit for musical instrument |
| 07/17/2013 | CN101785325B Electrostatic capacitive vibrating sensor |
| 07/16/2013 | US8488829 Paired gradient and pressure microphones for rejecting wind and ambient noise |
| 07/16/2013 | US8488827 Condenser microphone |
| 07/16/2013 | US8488777 Microphone coupler system for a communication device |
| 07/11/2013 | WO2013102499A1 Differential microphone and method for driving a differential microphone |
| 07/10/2013 | CN203057509U Layout and welding structure of high resistance device of microphone |
| 07/10/2013 | CN203057508U High resistance probe isolation structure of microphone |
| 07/10/2013 | CN203057507U A-weighted microphone device for double-audio-frequency phone |
| 07/10/2013 | CN203057506U Electret microphone amplifier with vertically-positioned-and-installed transistor |
| 07/10/2013 | CN103200509A Mems麦克风 Mems Microphone |
| 07/10/2013 | CN103200508A Micro-electro-mechanical systems (MEMS) microphone |
| 07/10/2013 | CN103199878A High-performance frequency modulation emitter |
| 07/09/2013 | US8483776 Acoustic path for a wireless communications device |
| 07/09/2013 | US8483412 Variable pattern hanging microphone system with remote polar control |
| 07/09/2013 | US8483014 Micromachined ultrasonic transducers |
| 07/04/2013 | WO2013097135A1 A silicon based mems microphone, a system and a package with the same |
| 07/04/2013 | WO2013011114A3 Component having a micromechanical microphone structure |
| 07/04/2013 | US20130170677 Speaker unit |
| 07/04/2013 | DE102004011144B4 Drucksensor und Verfahren zum Betreiben eines Drucksensors Pressure sensor and method of operating a pressure sensor |
| 07/03/2013 | EP2611212A2 Microphone unit |
| 07/03/2013 | CN203039908U Capacitive micro-silicon microphone |
| 07/03/2013 | CN203039907U A microphone circuit |
| 07/03/2013 | CN203039906U Front back-electret condenser microphone |
| 07/03/2013 | CN203039905U Microphone and vehicle equipped with the microphone |
| 07/03/2013 | CN203039904U Capacitive micro-silicon microphone |
| 07/02/2013 | US8477969 Condenser microphone |
| 06/27/2013 | WO2013033142A3 High voltage multiplier for a microphone and method of manufacture |
| 06/26/2013 | EP2608573A1 Ultrasound probe and ultrasound diagnostic device using same |
| 06/26/2013 | EP2608571A1 Vibration-lead plate for flat type speaker, mounted between voice coil plate and vibration plate |
| 06/26/2013 | CN203027490U Automatic screening device of electret microphones |
| 06/26/2013 | CN103180897A Acoustic diffusion generator |
| 06/26/2013 | CN103179493A MEMS (Micro-electromechanical Systems) microphone |
| 06/26/2013 | CN101729962B Method and electronic device for driving capacitance type electroacoustic transducer |
| 06/26/2013 | CN101378605B Ultrasonic transducer, method of manufacturing ultrasonic transducer, ultrasonic diagnostic apparatus, and ultrasonic microscope |
| 06/25/2013 | US8472651 Ultrasonic transducer for parametric array |
| 06/20/2013 | WO2013090724A1 System and method of reducing noise in a mems device |
| 06/20/2013 | US20130156235 Acoustic Apparatus And Method Of Manufacturing |
| 06/19/2013 | EP2605545A1 Acoustic sensor and microphone |
| 06/19/2013 | CN101964936B Processing chip for digital microphone, input circuit thereof and digital microphone |
| 06/18/2013 | US8467548 Miniature micro-electromechanical system (MEMS) based directional sound sensor |
| 06/13/2013 | WO2013086106A1 Mems chip scale package |
| 06/13/2013 | WO2013083203A1 Double backplate mems microphone with a single-ended amplifier input port |
| 06/13/2013 | US20130148836 Dynamic Microphone Unit and Dynamic Microphone |
| 06/13/2013 | DE102012221001A1 Defektdetektion und Verfahren zum Detektieren eines Defekts Defect detection and method for detecting a defect |
| 06/12/2013 | CN202998461U Transistor of electret microphone amplifier used for vertical positioning and installation |
| 06/12/2013 | CN202998460U Plastic tube cavity of electret microphone amplifier capable of vertically positioning and installing transistor |
| 06/12/2013 | CN202998459U Vehicle-mounted microphone |
| 06/12/2013 | CN103155597A Ultrasonic transducer and ultrasonic diagnostic equipment using the same |
| 06/12/2013 | CN103152683A MEMS (Micro-Electromechanical System) microphone |
| 06/12/2013 | CN103152682A High-performance frequency-modulation radio microphone |
| 06/12/2013 | CN101877811B Microelectromechanical system (mems) device with senstivity trimming circuit and trimming process |
| 06/12/2013 | CN101296530B Silicon capacitor microphone |
| 06/06/2013 | WO2013082594A1 Planar speaker |
| 06/06/2013 | WO2013081079A1 Electrostatic speaker |
| 06/06/2013 | WO2013081078A1 Electrostatic speaker |
| 06/06/2013 | WO2013080962A1 Polymer speaker |
| 06/05/2013 | EP2599333A1 Reduced footprint microphone system with spacer member having through-hole |
| 06/05/2013 | CN202979277U Iron-casing capacitance silicon microphone with correctable sensitivity |
| 06/05/2013 | CN202979276U Low-voltage frequency modulation wireless microphone |
| 06/05/2013 | CN202979275U Encapsulation structure of microphone |
| 06/05/2013 | CN103139691A Micro-electromechanical system (MEMS) silicon microphone utilizing multi-hole signal operation instruction (SOI) silicon bonding and manufacturing method thereof |
| 06/05/2013 | CN103130176A Micromechanical functional apparatus, particularly a loudspeaker apparatus, and appropriate method of manufacture |
| 06/05/2013 | CN102111704B Capacitance type microphone |
| 06/05/2013 | CN101909235B Capacitance type microphone without electret layer |
| 06/05/2013 | CN101878658B Ultrasonic probe, and ultrasonic diagnosis device using the probe |
| 06/05/2013 | CN101282594B Encapsulation structure for Micro-electromechanical microphone with two-sided mounting-pasted electrode |
| 06/04/2013 | US8456958 Capacitive micro-machined ultrasonic transducer for element transducer apertures |
| 05/30/2013 | WO2013077485A1 Condenser microphone with easy assembly |
| 05/30/2013 | WO2013075870A1 Chip with a micro-electromechanical structure and covering element, and a method for the production of same |
| 05/30/2013 | US20130136291 Mems microphone |
| 05/29/2013 | CN202957979U Micro-electromechanical system (MEMS) microphone |
| 05/29/2013 | CN202957978U Micro electro mechanical microphone chip |
| 05/29/2013 | CN202957977U Micro electro mechanical microphone chip |
| 05/29/2013 | CN202957976U Micro electro mechanical microphone chip |
| 05/29/2013 | CN202957975U Micro electro mechanical microphone chip |
| 05/29/2013 | CN202957974U Microphone |
| 05/29/2013 | CN202957973U High-performance amplitude-modulation wireless microphone |
| 05/29/2013 | CN202957972U Micro-electromechanical System (MEMS) chip |
| 05/29/2013 | CN101385392B MEMS device |
| 05/28/2013 | US8451694 Ultrasonic sensor unit and electronic device |
| 05/28/2013 | US8451693 Micromachined ultrasonic transducer having compliant post structure |
| 05/23/2013 | WO2013071952A1 Mems-microphone with reduced parasitic capacitance |
| 05/23/2013 | WO2013071951A1 Mems microphone with reduced parasitic capacitance |
| 05/23/2013 | WO2013071950A1 Mems backplate, mems microphone comprising a mems backplate and method for manufacturing a mems microphone |
| 05/23/2013 | US20130129121 Electrostatic loudspeaker and method of producing electrostatic loudspeaker |
| 05/23/2013 | DE102011086764A1 MEMS-Chippackage und Verfahren zum Herstellen eines MEMS-Chippackages MEMS chip package and method for manufacturing a MEMS chip packages |
| 05/22/2013 | EP2595412A1 Ultrasonic oscillator and ultrasonic diagnosis device |
| 05/22/2013 | CN202949568U High-power micro-electromechanical system (MEMS) microphone |
| 05/22/2013 | CN202949567U High-power micro-electromechanical system (MEMS) microphone adopting double-gold-thread chip packaging structure |