| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 05/15/2002 | EP1205762A1 Method and apparatus for determining sound source |
| 05/15/2002 | CN2492031Y Improved radio handfree receiver |
| 05/15/2002 | CN1349726A Headphone device |
| 05/14/2002 | US6389146 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters |
| 05/14/2002 | US6389141 Combination of a speaker case and a connector for connecting two speaker cases |
| 05/14/2002 | US6389140 Ceramic piezoelectric type microphone |
| 05/14/2002 | US6386377 Mounting assembly for plurality of microphones |
| 05/14/2002 | US6386315 Flat panel sound radiator and assembly system |
| 05/14/2002 | US6386314 Flexible earphone assembly for use during hearing screening |
| 05/10/2002 | WO2002037895A1 Neck-phone |
| 05/10/2002 | WO2002037893A1 An electret condenser microphone |
| 05/10/2002 | WO2002009271A3 Apparatus for ac-to-dc conversion which provides a signed dc signal |
| 05/10/2002 | WO2002003746A3 A microphone assembly |
| 05/10/2002 | WO2001091512A3 Directional microphone arrangement and method for signal processing in a directional microphone arrangement |
| 05/10/2002 | WO2001041500A3 Loudspeaker device |
| 05/10/2002 | WO2001041498A3 Bending wave loudspeakers |
| 05/09/2002 | US20020054978 Cloth with a stabilizing support structure |
| 05/09/2002 | US20020054691 Microspeaker |
| 05/09/2002 | US20020054686 Connecting cable for helmets |
| 05/09/2002 | US20020054678 Earpiece holder |
| 05/08/2002 | EP1204296A2 Microspeaker |
| 05/08/2002 | EP1204295A1 Flat panel sound radiator with sound absorbing facing |
| 05/08/2002 | EP1204293A2 Speech communication apparatus |
| 05/08/2002 | EP0988771A4 Dipole speaker headrests |
| 05/08/2002 | EP0789980B1 Global sound microphone system |
| 05/08/2002 | CN2490763Y Infrared radio microphone system device |
| 05/08/2002 | CN1348672A Headset |
| 05/08/2002 | CN1348321A Combined loudspeaker with magnet system |
| 05/08/2002 | CN1348318A Complex sound exciter drive circuit and portable information terminal |
| 05/08/2002 | CN1348305A Apparatus for reducing vibration generated by loudspeaker in TV shell |
| 05/07/2002 | US6385328 Electro-acoustic micro-transducer having three-mode reproduction feature |
| 05/07/2002 | US6385327 Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
| 05/07/2002 | US6385326 Quick-detachable structure for on-wall speaker panel |
| 05/07/2002 | US6385325 Headphone device |
| 05/07/2002 | US6385324 Broadband loudspeaker |
| 05/07/2002 | US6384982 Compact image display system for eyeglasses or other head-borne frames |
| 05/03/2002 | CA2359167A1 Flat panel radiator with sound absorbing facing |
| 05/02/2002 | WO2002035803A2 User interface for a portable communication device |
| 05/02/2002 | WO2002035802A2 Cellular phone that exposes the user's brain to much less microwave radiation than ordinary cellular phones with the help of a proxy (intermediary) device |
| 05/02/2002 | WO2002013492A3 An earphone for a cellular phone |
| 05/02/2002 | WO2001041496A3 Vibration actuator having an elastic member between a suspension plate and a magnetic circuit device |
| 05/02/2002 | WO2001035696A3 Digital loudspeaker |
| 05/02/2002 | WO2001031975A3 Ultra low frequency transducer and loud speaker comprising same |
| 05/02/2002 | US20020052216 Wireless telephone with acoustic speaker coupling |
| 05/02/2002 | US20020051959 Human sized manikin for training of auscultation |
| 05/02/2002 | US20020051557 Multiple-function convertor for converting electric signals to vibration of elements of a portable electronic instrument |
| 05/02/2002 | US20020051555 Ear transceiver |
| 05/02/2002 | US20020051552 Dual chamber acoustic enclosure with triple venting using passive radiators |
| 05/02/2002 | US20020051066 Image pickup apparatus and image reproducing apparatus |
| 05/02/2002 | EP1202602A2 Zoom microphone device |
| 05/02/2002 | EP1202601A2 Loudspeaker cone protector |
| 05/02/2002 | EP1201102A2 Loudspeaker |
| 05/02/2002 | EP1201101A2 Headphones with integrated microphones |
| 05/02/2002 | EP1200028A1 A method of producing a hood, and a hood produced according to the method |
| 05/02/2002 | EP1145592A3 Vibration actuator having an elastic member between a suspension plate and a magnetic circuit device |
| 05/02/2002 | DE10152602A1 Electrostatic loudspeaker equipment has bias voltage applied between oscillator electrode and fixed electrode |
| 05/02/2002 | CA2426860A1 Cellular phone that exposes the user's brain to much less microwave radiation than ordinary cellular phones with the help of a proxy (intermediary) device |
| 05/01/2002 | CN2489533Y Combined computer with loudspeaker box |
| 05/01/2002 | CN2489532Y Combined microelectrical equipment external connecting earphone wire accepting device |
| 05/01/2002 | CN2489531Y Multi-azimuthal artificial stone loudspeaker box |
| 05/01/2002 | CN2488890Y Automatic wire winding device capable of extending wire body |
| 04/30/2002 | US6381338 All directionally turnable radio microphone |
| 04/30/2002 | US6381337 Sound reproduction device or microphone |
| 04/30/2002 | US6381335 Audio speaker system for personal computer |
| 04/30/2002 | US6380629 Wafer level stack package and method of fabricating the same |
| 04/25/2002 | WO2002034007A1 Equalizable electro-acoustic device used in commercial panels and method for converting said panels |
| 04/25/2002 | WO2002034006A2 Thin speaker assembly and personal electronic devices |
| 04/25/2002 | WO2002034005A2 Electroacoustic transducer having spring contacts |
| 04/25/2002 | WO2001067843A3 Port switch as for a hearing aid device |
| 04/25/2002 | WO2001054450A3 Transducer in particularly for use in acoustic devices |
| 04/25/2002 | US20020049555 Method for improving the start up of an ultrasonic system under zero load conditions |
| 04/25/2002 | US20020048975 Electrical connection structure for electronic apparatus |
| 04/25/2002 | US20020048386 High definition transducer |
| 04/25/2002 | US20020048385 Personal talking aid for cellular phone |
| 04/25/2002 | US20020048384 Desktop microphone base with a shock absorbing member |
| 04/25/2002 | US20020048381 Multichannel acoustic signal reproducing apparatus |
| 04/25/2002 | US20020048376 Signal processing apparatus and signal processing method |
| 04/25/2002 | US20020046619 Living organism conductive actuator |
| 04/24/2002 | EP1199907A2 Line electroacoustical transducing |
| 04/24/2002 | EP1199110A2 Method for starting up an ultrasonic system under zero load conditions |
| 04/24/2002 | EP1198974A1 Hearing aid with adaptive matching of microphones |
| 04/24/2002 | EP1198972A1 Electric signal processing for electroacoustic transducer |
| 04/24/2002 | EP1198942A1 Communication earpiece without impulse and high frequency noise |
| 04/24/2002 | CN1346229A Radiation-free earphone and making method thereof |
| 04/24/2002 | CN1346201A Connection structure for signal converter |
| 04/23/2002 | US6377824 Radiation-free cellular telephone system |
| 04/23/2002 | US6377697 Ear-mounted headset device |
| 04/23/2002 | US6377696 Loudspeaker systems |
| 04/23/2002 | US6377695 Trim panel comprising an integral acoustic system |
| 04/23/2002 | US6377068 Low impedance stereo audio bus |
| 04/23/2002 | US6376967 Inertial/audio unit and construction |
| 04/23/2002 | US6374942 System and method for a combined rotatable mechanical and electrical speaker mounting system |
| 04/18/2002 | WO2002032187A1 Speaker device, and method and device for producing the same |
| 04/18/2002 | WO2002032185A1 Headphone accessory |
| 04/18/2002 | WO2002031401A2 Holder for electronic device, such as a microphone |
| 04/18/2002 | WO2001097559A3 Capacitive micromachined ultrasonic transducers. |
| 04/18/2002 | WO2001076320A3 Acoustic transducer for broad-band loudspeakers or headphones |
| 04/18/2002 | WO2001074116A3 Passive radiator having mass elements |
| 04/18/2002 | US20020045819 Acoustically generated images having selected components |
| 04/18/2002 | US20020044670 Pipe microphone device |