| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 10/14/2004 | US20040202338 Loudspeaker |
| 10/14/2004 | US20040202336 Vehicle accessory microphone having mechanism for reducing line-induced noise |
| 10/14/2004 | US20040202333 Hearing instrument with self-diagnostics |
| 10/14/2004 | US20040201775 Camera function |
| 10/14/2004 | US20040200920 Wire collecting device |
| 10/14/2004 | US20040200871 Knapsack with stereophonic reproducing kit |
| 10/14/2004 | DE10111636B4 Verfahren zum Herstellen eines Ohreinsatzes und Ohreinsatz A method of manufacturing a tube insert and tube insert |
| 10/14/2004 | CA2520179A1 Outdoor loudspeaker with passive radiator |
| 10/13/2004 | EP1467595A2 Hearing instrument with self-diagnostics |
| 10/13/2004 | EP1467593A2 Directional microphone |
| 10/13/2004 | EP1466499A1 Sound effects microphone |
| 10/13/2004 | EP1466498A1 Audio system based on at least second; order eigenbeams |
| 10/13/2004 | EP1466497A1 Echo-eliminating microphone |
| 10/13/2004 | EP1466316A1 Multi-frequency acoustic vibration transmission method and system |
| 10/13/2004 | EP0778720B1 Woofer |
| 10/13/2004 | CN2648747Y Loudspeaker group with elastic connecting device |
| 10/13/2004 | CN2648746Y 无辐射耳机 No radiation headset |
| 10/13/2004 | CN1536929A Directional loudspeaker |
| 10/13/2004 | CN1536928A Wall type mounted loudspeaker assembly |
| 10/13/2004 | CN1536927A Mike connector |
| 10/13/2004 | CN1171502C Signal converter |
| 10/13/2004 | CN1171499C Sounders for fire alarm systems |
| 10/13/2004 | CN1171431C Method and device to fasten a loudspeaker to circuit board |
| 10/13/2004 | CN1171185C Vibrator and method of controlling vibrator |
| 10/13/2004 | CN1170705C Built-in device of vehicles, and monitoring apparatus |
| 10/12/2004 | US6804370 Speaker capable to playback in wide frequency range |
| 10/12/2004 | US6804365 Speaker and speaker system |
| 10/12/2004 | US6804364 Headset |
| 10/12/2004 | US6802484 Stand accessory holder |
| 10/07/2004 | WO2004086812A1 Speaker system sound wave guide structure and horn speaker |
| 10/07/2004 | WO2004086476A1 Equipment and method for manufacturing semiconductor device |
| 10/07/2004 | WO2004086366A2 Portable entertainment system |
| 10/07/2004 | US20040198470 Multi-purpose dongle for wireless headset |
| 10/07/2004 | US20040198462 Handsfree structure with antibackgroung noise function |
| 10/07/2004 | US20040198240 Apparatus and system for providing wideband voice quality in a wireless telephone |
| 10/07/2004 | US20040198239 Wireless terminal providing sound pressure level dissipation through channeled porting of sound |
| 10/07/2004 | US20040198087 Microphone connector |
| 10/07/2004 | US20040197008 Whizzer cone for a loudspeaker for producing uniform frequency response |
| 10/07/2004 | US20040197005 Magnet system of a sound transducer |
| 10/07/2004 | US20040197004 Speaker apparatus |
| 10/07/2004 | US20040197002 Bone conduction headset |
| 10/07/2004 | US20040197001 Earbag hanging earphones |
| 10/07/2004 | US20040197000 Socket for a microphone connector |
| 10/07/2004 | US20040196999 Speaker apparatus |
| 10/07/2004 | US20040196992 System and method for detecting the insertion or removal of a hearing instrument from the ear canal |
| 10/07/2004 | US20040196987 Universal audio speaker connection block |
| 10/07/2004 | US20040196986 Rapidly optimized wireless microphone system and method for controlling thereof |
| 10/07/2004 | US20040196985 Electronic apparatus having a detachable speaker unit |
| 10/07/2004 | US20040195469 Microphone support |
| 10/07/2004 | US20040195039 Audio speaker with wobble free voice coil movement |
| 10/07/2004 | DE202004012084U1 Bluetooth headset for connection to a computer to transmit digital signals between a mobile telephone and computer and which switches between dongle mode and head set mode depending on the electric potential at the USB plug |
| 10/07/2004 | DE10309517A1 Lautsprecherbox Speaker |
| 10/06/2004 | EP1465454A2 System and method for detecting the insertion or removal of a hearing instrument from the ear canal |
| 10/06/2004 | EP1465452A2 Narrow opening electroacoustical transducing |
| 10/06/2004 | EP1464204A1 Detection of sound waves produced by a musical instrument |
| 10/06/2004 | EP0977677B1 Automobile sound producing device |
| 10/06/2004 | EP0976299B1 Headset assembly |
| 10/06/2004 | CN2647002Y A sound box and holding structure thereof |
| 10/06/2004 | CN2647001Y Construction improved sound box |
| 10/06/2004 | CN2647000Y Volume regulating device for eliminating noise introduced from volume change |
| 10/06/2004 | CN1535556A Loadspeakers |
| 10/06/2004 | CN1535554A Electroacoustic public address unit with acoustic horn or waveguide |
| 10/06/2004 | CN1535553A Improvement in accoustic enclosures |
| 10/06/2004 | CN1535073A 扬声器装置 The speaker device |
| 10/06/2004 | CN1535034A System and method for improving sound quality of multifunctional equipment of mobile communication terminal |
| 10/06/2004 | CN1534973A News conference system capable of compensating microphone sensitiving and its method |
| 10/06/2004 | CN1534954A Portable electronic apparatus |
| 10/05/2004 | US6801635 Speaker device |
| 10/05/2004 | US6801633 Subwoofer assembly |
| 10/05/2004 | US6801631 Speaker system with multiple transducers positioned in a plane for optimum acoustic radiation pattern |
| 09/30/2004 | WO2004084583A1 Hearing aid and biological vibrator |
| 09/30/2004 | WO2004084578A1 Vibrator unit and portable telephone employing it |
| 09/30/2004 | WO2004084577A1 Circular microphone array for multi channel audio recording |
| 09/30/2004 | WO2004082692A1 Actacid composition |
| 09/30/2004 | WO2004071128A3 Electrodynamic acoustic transducer |
| 09/30/2004 | US20040193052 Ultrasonic transmitting and receiving apparatus and ultrasonic transmitting and receiving method |
| 09/30/2004 | US20040192379 Method and apparatus for transmitting signals of a battery-free cordless microphone |
| 09/30/2004 | US20040192210 System and method for improving sound quality of an MFD in a mobile communication terminal |
| 09/30/2004 | US20040190746 Speaker device |
| 09/30/2004 | US20040190745 Adjustable earpiece |
| 09/30/2004 | US20040190744 Communications headset |
| 09/30/2004 | US20040190743 Earpiece having detachable battery device |
| 09/30/2004 | US20040190742 Portable information terminal device |
| 09/30/2004 | US20040190741 Portable entertainment system |
| 09/30/2004 | US20040190736 Multiple waveguide coaxial ceiling loudspeaker |
| 09/30/2004 | US20040189151 Mechanical-to-acoustical transformer and multi-media flat film speaker |
| 09/30/2004 | US20040188175 Audio speaker with wobble free voice coil movement |
| 09/30/2004 | US20040188174 Audio speaker with wobble free voice coil movement |
| 09/30/2004 | DE202004011645U1 Verstellvorrichtung zum Verschieben von getrennten Leitern für einen Kopfhörersatz Adjusting to move separate conductors for a set of headphones |
| 09/30/2004 | DE202004011644U1 Verstellvorrichtung zum Verschieben eines Leiters für einen Kopfhörersatz Adjusting device for moving a conductor for a set of headphones |
| 09/30/2004 | DE202004009938U1 Verstellbarer Bluetooth-Ohrhörer Adjustable Bluetooth Earphones |
| 09/30/2004 | DE10012878B4 Vorrichtung zur Erzeugung akustischer Wellen A device for generating acoustic waves |
| 09/29/2004 | EP1463277A2 System and method for improving sound quality of a multifunction device MFD in a mobile communication terminal |
| 09/29/2004 | EP1462819A2 Ultrasonic imaging apparatus with multiple transmit beams and reduced sidelobes |
| 09/29/2004 | EP1230781B1 Configurable switch for a wireless headset |
| 09/29/2004 | EP1175669B1 Systems and methods for passive pressure-compensation for acoustic transducers |
| 09/29/2004 | CN2645388Y 仿生话筒 Bionic microphone |
| 09/29/2004 | CN2645387Y Microphone stand |
| 09/29/2004 | CN2645386Y Flexible ear piece ring |
| 09/29/2004 | CN2645385Y Ear plug |