| Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555) |
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| 11/12/2009 | WO2009137495A2 Electrostatic speaker systems and methods |
| 11/11/2009 | CN201345727Y Vibrating diaphragm |
| 11/11/2009 | CN101577849A Loudspeaker environment-friendly vibrating body material |
| 10/29/2009 | WO2009129815A1 Dual cone and multi cone assembly of a membrane |
| 10/29/2009 | WO2009013460A3 Loudspeaker |
| 10/28/2009 | CN101568052A Flat plane speaker with double corrugated rims on vibrating diaphragm |
| 10/22/2009 | US20090262972 Speaker and device using this speaker |
| 10/22/2009 | DE202008017374U1 Lautsprecher in Form eines Unterputz-Elektro-Installationsgeräts eines Gebäudeinstallationssystems Speakers in the form of a flush-mounted electrical installation unit of a building installation system |
| 10/22/2009 | DE102008018206B3 Loudspeaker, has assembly cone with smaller diameter end connected with voice coil body and lower centering, and larger diameter end connected with diaphragm and upper centering, where diaphragm has arbitrary shape |
| 10/21/2009 | EP1020096B1 Miniature full range loudspeaker |
| 10/21/2009 | CN201332496Y Ribbon voice diaphragm loudspeaker driven by conduction sheets |
| 10/21/2009 | CN101563939A Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker |
| 10/21/2009 | CN101562769A High-sensitivity miniature telephone receiver for digital communication |
| 10/21/2009 | CN100553372C Apparatus and method for calculating a discrete value of a component in a loudspeaker signal |
| 10/20/2009 | CA2299151C A loudspeaker |
| 10/14/2009 | CN201328182Y Microphone diaphragm and electret condenser microphone |
| 10/14/2009 | CN101558661A Electro-acoustic transducer |
| 10/14/2009 | CN100551133C Bending wave acoustic radiator |
| 10/08/2009 | WO2009122573A1 Speaker device |
| 10/08/2009 | DE102008013612A1 Akustische Vorrichtung Acoustic device |
| 10/07/2009 | EP1627550B1 Apparatus and method for generating acoustic energy in a receiver assembly |
| 10/07/2009 | CN201323650Y Diaphragm device of a mini-microphone |
| 10/07/2009 | CN101552943A A sheet material for producing loudspeaker cone and its processing technique |
| 10/06/2009 | US7599511 Loudspeaker with undulated membrane |
| 10/06/2009 | CA2368235C Systems and methods for passive pressure-compensation for acoustic transducers |
| 10/01/2009 | WO2009120512A1 Loudspeaker suspension |
| 10/01/2009 | WO2009118940A1 Acoustic converter diaphragm, and acoustic converter |
| 10/01/2009 | WO2009118895A1 Acoustic converter diaphragm and acoustic converter |
| 10/01/2009 | DE102005020746B4 Magnetsystem Magnet system |
| 09/30/2009 | EP2105038A1 Arrangement of acoustic bodies operated by oscillation |
| 09/23/2009 | CN101543093A Membrane for an electroacoustic transducer and acoustic device |
| 09/23/2009 | CN101540944A Sound wave conversion device and mobile communication device with sound wave conversion device |
| 09/23/2009 | CN100544500C Speaker for super-high frequency range reproduction |
| 09/22/2009 | US7591344 Peripheral component for audio equipment |
| 09/17/2009 | DE102008014137A1 Flat membrane for e.g. band pass housing in woofer for theater, is arranged in front of and/or rear of woofer and extends over maximum surface area of flat housing that is utilized as dipole emitter in free-standing manner |
| 09/17/2009 | DE102008012856A1 Akustische Anregereinheit Acoustic excitation purity |
| 09/16/2009 | EP2100477A1 Speaker motor and speaker |
| 09/16/2009 | CN201312377Y Box body and three-dimensional vibration diaphragm speaker which has the sound-box efficacy and can transmit sound at 360 degrees |
| 09/16/2009 | CN101536543A Compound membrane, method of manufacturing the same, and acoustic device |
| 09/16/2009 | CN101536542A Acoustic device and method of manufacturing the same |
| 09/16/2009 | CN101534466A Silicon microphone chip and manufacture method thereof |
| 09/16/2009 | CN101534464A Audio output apparatus and vibrator |
| 09/16/2009 | CN100542334C Non-planar membranes for electroacoustic converters and its production method |
| 09/15/2009 | US7590436 Slider mobile telephone comprising a bending wave loudspeaker |
| 09/11/2009 | WO2009109228A1 Nested compound loudspeaker drive unit |
| 09/10/2009 | DE102008011302A1 Flächenlautsprecher Panel loudspeaker |
| 09/09/2009 | EP2098096A1 Membrane for an electroacoustic transducer and acoustic device |
| 09/09/2009 | CN201307926Y Vibrating diaphragm and loudspeaker applied to the vibrating diaphragm |
| 09/09/2009 | CN201307925Y Vibrating diaphragm and loudspeaker applied to the vibrating diaphragm |
| 09/09/2009 | CN100539740C Silicon microphone |
| 09/08/2009 | US7587060 Speaker device |
| 09/03/2009 | WO2009108208A1 Planar loudspeakers, or the like, and associated methods |
| 09/03/2009 | WO2009107976A2 Apparatus for controlling movement of oled and cone paper of visual speaker |
| 09/03/2009 | WO2009107938A2 Magnesium diaphragm with built-in bobbin and method for same |
| 09/03/2009 | WO2009107192A1 Vibrator for acoustic converter, and speaker device |
| 09/03/2009 | WO2009106427A1 Flat surface loudspeaker |
| 09/03/2009 | US20090217509 Speaker, module using the same, electronic equipment and device, and speaker producing method |
| 09/02/2009 | EP2095680A2 Integrated audiovisual output device |
| 09/02/2009 | CN101523929A Point excitation placement in an audio transducer |
| 09/02/2009 | CN101521840A 喇叭及音箱 Speaker and Speaker |
| 09/01/2009 | CA2555443C Audio devices for vehicles |
| 08/27/2009 | WO2009104264A1 Speaker device |
| 08/26/2009 | CN101518099A Speaker apparatus providing with visual screen |
| 08/26/2009 | CN101516052A Loudspeaker |
| 08/20/2009 | WO2009101813A1 Speaker, and electronic device |
| 08/20/2009 | DE102007029030B4 Dynamischer Lautsprecher Dynamic speaker |
| 08/20/2009 | DE102005033632B4 Lautsprecher Speaker |
| 08/19/2009 | EP1762117B1 Capacitor microphone |
| 08/19/2009 | CN201294626Y Miniature moving-coil type electro-acoustic converter |
| 08/19/2009 | CN101511048A Electro-acoustic converter with novel vibrating system and manufacturing method for vibrating system |
| 08/18/2009 | US7577270 Dome-shaped diaphragm and speaker |
| 08/18/2009 | US7576462 Electromagnetic exciter |
| 08/13/2009 | WO2009098888A1 Vibration pickup microphone |
| 08/13/2009 | US20090200101 Acoustic transducer made of pure beryllium with directed radiation, with a concave-shaped diaphragm, for audio applications, in particular for acoustic enclosures |
| 08/12/2009 | CN201290172Y Sound basin for loudspeaker, loudspeaker using the sound basin, and electronic product using the loudspeaker |
| 08/05/2009 | CN201286170Y Voice basin structure of loudspeaker |
| 08/05/2009 | CN201286168Y 360 degree sounding spherical loudspeaker |
| 08/04/2009 | US7570780 Loudspeaker having a composite diaphragm structure |
| 08/04/2009 | US7570776 Speaker device and method of manufacturing the speaker device |
| 08/04/2009 | US7570771 Loudspeakers |
| 08/04/2009 | US7568552 Acoustic passive radiator rocking mode reducing |
| 07/30/2009 | WO2009093444A1 Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method |
| 07/30/2009 | WO2009093291A1 Piezoelectric vibration plate |
| 07/30/2009 | DE102004059067B4 Folie für einen Air-motion Lautsprecher Film for Air-motion speakers |
| 07/29/2009 | EP2082612A1 Sound transducer device |
| 07/29/2009 | EP1324632B1 Speaker |
| 07/29/2009 | CN101496418A High frequency diaphragm and voice coil assembly |
| 07/29/2009 | CN101494812A Horn capable of eliminating vibration wave of vibration film |
| 07/23/2009 | WO2009090857A1 Diaphragm for speaker, speaker using the diaphragm, electronic device using the speaker, and speaker-mounted device |
| 07/23/2009 | WO2009090761A1 Diaphragm for speaker, and speaker device |
| 07/23/2009 | WO2009090746A1 Diaphragm for speaker, and speaker device |
| 07/23/2009 | WO2009073578A3 Loudspeaker-transducer array |
| 07/23/2009 | DE19705758B9 Mikrozelluläres Schäumen, geschäumtes polymeres Material und dessen Verwendung Microcellular foams, foamed polymeric material and its use |
| 07/22/2009 | EP2080407A1 Compound membrane, method of manufacturing the same, and acoustic device |
| 07/22/2009 | EP2080406A1 Acoustic device and method of manufacturing the same |
| 07/22/2009 | CN201278582Y Sound membrane |
| 07/21/2009 | US7564984 Acoustic device |
| 07/16/2009 | WO2009088002A1 Vibration plate, speaker, acoustic system and method of manufacturing vibration plate |
| 07/16/2009 | WO2009086925A1 Oscillator for a flat loudspeaker, flat loudspeaker and vehicle |
| 07/16/2009 | CA2710795A1 Oscillator for a flat loudspeaker, flat loudspeaker and vehicle |