| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 06/01/2004 | US6744899 Direct coupling of waveguide to compression driver having matching slot shaped throats |
| 06/01/2004 | US6744898 Passenger seat with built-in speakers and audio system therefor |
| 06/01/2004 | US6744895 Loudspeaker |
| 06/01/2004 | CA2229858C Inertial vibration transducers |
| 05/27/2004 | WO2004045246A1 Active sound box with electron tube amplifier |
| 05/27/2004 | WO2004045243A1 A headset |
| 05/27/2004 | US20040101154 Listening device for hands-free system |
| 05/27/2004 | US20040101152 Speaker system and method for making the same |
| 05/27/2004 | US20040101150 Piezoelectric driver device with integral sensing layer |
| 05/27/2004 | US20040101149 Planar type speaker and system using it |
| 05/27/2004 | US20040099436 Electric cord and loudspeaker using the electric cord |
| 05/27/2004 | DE202004004795U1 Loudspeaker arrangement for notebook computer, includes console with space for accommodating section of monitor frame |
| 05/27/2004 | DE19954483B4 Lautsprecherkissen Speaker pillow |
| 05/27/2004 | DE10324640B3 Mounting device for loudspeaker in automobile passenger compartment, e.g. for hands-free telephone, allowing loudspeaker movement between stowed position and working position |
| 05/27/2004 | DE10253662A1 Wireless pointing device e.g. mouse for computers, has induction power device with two induction coils installed on flat plate and inside housing with contact plane respectively |
| 05/27/2004 | DE10222006B4 Lautsprecheranordnung Speaker assembly |
| 05/27/2004 | CA2503249A1 A headset |
| 05/26/2004 | EP1422969A2 Method and apparatus for reproducing audio signal |
| 05/26/2004 | EP1421998A1 Vibrating actuator device |
| 05/26/2004 | EP1421825A2 Textured surfaces for hearing instruments |
| 05/26/2004 | EP1421822A2 Ear coupler |
| 05/26/2004 | EP1421821A1 Directional sensors for head-mounted contact microphones |
| 05/26/2004 | CN2618393Y Assembled movement base |
| 05/26/2004 | CN2618392Y 自动开关调频耳机 FM headset automatically switches |
| 05/26/2004 | CN2618381Y Clipped earphone |
| 05/26/2004 | CN1500364A Loudspeaker |
| 05/26/2004 | CN1151703C Multi-stage turbulent-flow shielding can for microphone |
| 05/26/2004 | CN1151701C Electrodynamic loudspeaker and system comprising loudspeaker |
| 05/26/2004 | CN1151700C Earphone system with operabilityn inproved terminal equipment system with earphone system |
| 05/26/2004 | CN1151699C Speaker |
| 05/25/2004 | US6741721 Informing apparatus for mobile communication apparatus |
| 05/25/2004 | US6741720 In-wall loudspeaker system |
| 05/25/2004 | US6741719 Head phone |
| 05/25/2004 | US6741718 Near-field speaker/microphone acoustic/seismic dampening communication device |
| 05/25/2004 | US6741717 Device for reducing structural-acoustic coupling between the diaphragm vibration field and the enclosure acoustic modes |
| 05/25/2004 | US6741714 Hearing aid with adaptive matching of input transducers |
| 05/25/2004 | US6741709 Condenser microphone assembly |
| 05/25/2004 | US6741708 Acoustic system comprised of components connected by wireless |
| 05/25/2004 | US6740805 Sound system and method for creating a sound event based on a modeled sound field |
| 05/25/2004 | US6739425 Evacuated enclosure mounted acoustic actuator and passive attenuator |
| 05/25/2004 | US6739424 Speaker system |
| 05/21/2004 | WO2004043113A1 Portable electronic apparatus with diaphragm type speaker |
| 05/21/2004 | WO2004043112A1 Apparatus for increasing the quality of sound from an acoustic source |
| 05/21/2004 | WO2004042880A1 Improvements in and relating to audio devices |
| 05/21/2004 | WO2004012476A3 Electrical impedance based audio compensation in audio devices and methods therefor |
| 05/20/2004 | US20040096079 Fastening device for earphone |
| 05/20/2004 | US20040096078 Information display device assembled with spectacle frame |
| 05/20/2004 | US20040096077 Hearing coupler shells of soft pliable thermoplastic material |
| 05/20/2004 | US20040096075 Acoustic device with means for being sevured in a human ear |
| 05/20/2004 | US20040096068 Audio effector circuit |
| 05/20/2004 | US20040096066 Sound system and method for creating a sound event based on a modeled sound field |
| 05/20/2004 | US20040094358 Structure for quick-assembly cabinet |
| 05/19/2004 | EP1419673A2 Loudspeaker with a three-dimensional diaphragm |
| 05/19/2004 | EP1419671A2 Bass reflex-type headphone |
| 05/19/2004 | CN1498512A Head set with adjustable microphone boom |
| 05/19/2004 | CN1498034A Microphone with same sensitivity |
| 05/19/2004 | CN1498032A Manufacturing device and method of loudspeaker integral display |
| 05/19/2004 | CN1498031A Radio headphone with socket |
| 05/19/2004 | CN1150793C Multi-function acoustic assembly |
| 05/19/2004 | CN1150738C Mobile communication unit with bone conduction speaker |
| 05/19/2004 | CN1150737C Optical switch for headset |
| 05/18/2004 | US6738489 Vibration speaker |
| 05/18/2004 | US6738487 Earphone |
| 05/18/2004 | US6738485 Apparatus, method and system for ultra short range communication |
| 05/18/2004 | US6738483 Overhead loudspeaker systems |
| 05/18/2004 | US6738482 Noise suppression system with dual microphone echo cancellation |
| 05/13/2004 | WO2004040942A1 Equaliser, or phase plug, for electro-acoustic transducers |
| 05/13/2004 | WO2004040940A1 Microphone in a cylindrical housing having elliptical end faces |
| 05/13/2004 | WO2004039636A1 Trim panel with integrally formed attachment member |
| 05/13/2004 | WO2003037035A9 Sound masking system |
| 05/13/2004 | US20040091129 Headset with adjustable earhook |
| 05/13/2004 | US20040091128 Fixable-wire earphone |
| 05/13/2004 | US20040091124 Audio devices |
| 05/13/2004 | US20040090148 Multi-frequency transmission/reception apparatus |
| 05/13/2004 | US20040088851 Microphone assembly |
| 05/13/2004 | DE202004003360U1 Loudspeaker assembly with extra magnets between two loudspeakers box, without attraction-repulsion effect, for improvement of stability of individual loudspeakers at woofer frequencies, with magnetic polarity of electromagnetic groups |
| 05/13/2004 | DE10204780B4 Vorrichtung zur Befestigung eines Magneten an den Gehörknöchelchen des menschlichen Mittelohrs Device for fixing a magnet to the ossicles of the human middle ear |
| 05/12/2004 | EP1418791A2 Improvements in and relating to audio devices |
| 05/12/2004 | EP1417859A1 Loudspeaker with direct emission and optimised radiation |
| 05/12/2004 | EP1417858A1 Electroacoustic public address unit with acoustic horn or waveguide |
| 05/12/2004 | EP1226572A4 Sound system and method for creating a sound event based on a modeled sound field |
| 05/12/2004 | EP1175810B1 A loudspeaker having a dual chamber acoustical enclosure with two external vents and one internal vent |
| 05/12/2004 | EP1145382B1 Passive radiator with mass elements |
| 05/12/2004 | EP1084588B1 Acoustic damping material |
| 05/12/2004 | EP0875125B1 Flexible interlink for hydrophone array |
| 05/12/2004 | CN1496552A Manifold for horn loudspeaker |
| 05/12/2004 | CN1496192A Laudspeaker unit and its assembly |
| 05/12/2004 | CN1496191A Laudspeaker combined component |
| 05/12/2004 | CN1496189A Miniature all sound interval laudspeaker |
| 05/12/2004 | CN1496187A Reflecting board vibration damping |
| 05/12/2004 | CN1496017A Retained ear mould for improving combination device |
| 05/12/2004 | CN1494978A Package assembly of axial component |
| 05/12/2004 | CN1149898C Double-face loudspeaker |
| 05/11/2004 | US6735321 Loudspeaker enclosure mounting above listener |
| 05/11/2004 | US6735320 Angled port loudspeaker |
| 05/11/2004 | US6735317 Hearing aid, and a method and a signal processor for processing a hearing aid input signal |
| 05/11/2004 | US6735306 Infrared helmet |
| 05/11/2004 | US6733456 Off-aperture electrical connection for ultrasonic transducer |
| 05/11/2004 | US6732832 Speaker damper |
| 05/06/2004 | WO2004039121A2 Thin enclosure electroacoustical transducing |