| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 02/04/2003 | US6513624 Loudspeaker enclosure |
| 02/04/2003 | US6513622 Full-range loudspeaker system for cinema screen |
| 02/04/2003 | US6513621 Method of producing and making use of ear tips having a filled airtight chamber |
| 02/03/2003 | CA2419750A1 Method for localising direction and localisation arrangement |
| 01/30/2003 | WO2003009639A1 Recording a three dimensional auditory scene and reproducing it for the individual listener |
| 01/30/2003 | WO2003009638A1 Microphone |
| 01/30/2003 | WO2003009637A2 Articulated reversible headpiece |
| 01/30/2003 | WO2003009636A2 Directional sound acquisition |
| 01/30/2003 | WO2003009219A2 Electronic article comprising loudspeaker & touch pad |
| 01/30/2003 | US20030021428 Sound reproduction device |
| 01/30/2003 | US20030019990 Bracket for mounting speaker |
| 01/30/2003 | US20030019989 Bracket for mounting speaker |
| 01/30/2003 | US20030019983 Bracket for mounting speaker |
| 01/30/2003 | US20030019015 Device for fixing earphones and/or mini-microphones |
| 01/29/2003 | EP1279322A1 Sound enhancing speaker cabinet for a removable speaker assembly |
| 01/29/2003 | EP1279315A1 Dynamic enclosure |
| 01/29/2003 | EP1279314A1 Boomless hearing/speaking configuration for sound receiving means |
| 01/29/2003 | EP1279270A1 Sound-transmitting apparatus |
| 01/29/2003 | EP0993344B1 Ultrasonic transducer |
| 01/29/2003 | CN1394457A Transducer |
| 01/28/2003 | US6512834 Acoustic protective cover assembly |
| 01/28/2003 | US6510919 Facing system for a flat panel radiator |
| 01/23/2003 | WO2003007653A1 Speaker device |
| 01/23/2003 | WO2003007650A1 General-purpose loudspeaker and mounting method thereof |
| 01/23/2003 | US20030018263 Multi-zone transmitter for quantitative ultrasound and image measurement |
| 01/23/2003 | US20030016835 Adaptive close-talking differential microphone array |
| 01/23/2003 | US20030016830 Speaker system |
| 01/23/2003 | US20030016796 Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth |
| 01/23/2003 | US20030015369 Passive speaker system |
| 01/22/2003 | EP1278397A2 Loudspeaker drive unit with flat surround |
| 01/22/2003 | EP1278395A2 Second-order adaptive differential microphone array |
| 01/22/2003 | EP1278394A1 A wireless earphone |
| 01/22/2003 | EP1278393A2 Removable power supply |
| 01/22/2003 | EP1277372A1 Reception system for multisensor antenna |
| 01/22/2003 | EP1127475B1 An electroacoustic communications unit |
| 01/22/2003 | EP0776591A4 Ported loudspeaker system and method with reduced air turbulence |
| 01/22/2003 | CN2532649Y Ac/dc two-purpose dynamic sence imitation loudspeake box |
| 01/22/2003 | CN1392771A Method and device for communication with animal |
| 01/22/2003 | CN1392749A Earphone |
| 01/22/2003 | CN1099729C Elastomeric connector |
| 01/17/2003 | CA2389195A1 Removable power supply for an audio device |
| 01/16/2003 | WO2003005767A2 Foldable hook for a headset and a headset equipped therewith |
| 01/16/2003 | WO2003005766A1 Bone conduction headset |
| 01/16/2003 | WO2003005681A1 Wireless head set system |
| 01/16/2003 | US20030013478 Portable radio apparatus |
| 01/16/2003 | US20030012396 Headset |
| 01/16/2003 | US20030012395 Bone conduction speaker |
| 01/16/2003 | US20030012394 Neckphone |
| 01/16/2003 | US20030012371 Phone sock |
| 01/16/2003 | DE20212860U1 Ceiling flush-mounting loudspeaker system has motor drive for retracting into suspended ceiling, and frame corresponding to ceiling grid pattern |
| 01/16/2003 | CA2725715A1 Multi-phase headset for pilots |
| 01/16/2003 | CA2448938A1 Bone conduction headset |
| 01/15/2003 | EP1276347A2 Underwater sound radiation apparatus |
| 01/15/2003 | EP1276346A1 Speaker box |
| 01/15/2003 | EP1275268A1 Bone-conduction transducer and bone-conduction speaker headset therewith |
| 01/15/2003 | CN1391779A Vibration actuator having elastic member between suspension plate and magnetic circuit device |
| 01/15/2003 | CN1391761A 可重新配置的头戴式耳机开关 Reconfigurable headset switch |
| 01/15/2003 | CN1391688A Noise suppression system with dual microphone echo cancellation |
| 01/15/2003 | CN1391389A Wireless earphone |
| 01/14/2003 | US6507655 Ear mike phone |
| 01/14/2003 | US6505705 Compact vehicular loudspeaker with dual-standard mounting system |
| 01/09/2003 | WO2003001885A2 Multimedia and entertainment system for an automobile |
| 01/09/2003 | WO2001072085A3 Directional processing for multi-microphone system |
| 01/09/2003 | US20030009329 Directionally sensitive audio pickup system with display of pickup area and/or interference source |
| 01/09/2003 | US20030009303 Method for improving the start up of an ultrasonic system under zero load conditions |
| 01/09/2003 | US20030007660 Headphone device |
| 01/09/2003 | US20030007655 Electret condenser microphone |
| 01/09/2003 | US20030007654 Acoustic device |
| 01/09/2003 | US20030007653 Active acoustic devices |
| 01/09/2003 | US20030007650 Capacitor microphone |
| 01/09/2003 | DE20213061U1 Loudspeaker housing for Hi Fi car audio installation in which loudspeaker outer walls and/ or connections between them and loudspeaker contain component of elastomer |
| 01/09/2003 | DE10140663C1 Closed headphone for acoustic signal reproduction has rear volume behind transducer membrane sized to prevent spring effect |
| 01/08/2003 | EP1274274A1 Headphone having several speakers |
| 01/08/2003 | EP1274273A1 Protected headphone with electrical connection |
| 01/08/2003 | EP1274272A1 The application of invisible speaker and the method for fabricating the same |
| 01/08/2003 | EP1273204A2 Acoustic transducer for broad-band loudspeakers or headphones |
| 01/08/2003 | EP1273002A2 Rhythmic apparatus, rhythmic accompaniment method and electronic transducer |
| 01/08/2003 | EP1125471B1 Microphone |
| 01/08/2003 | CN1390430A Loudspeaker device |
| 01/08/2003 | CN1390429A Loudspeaker |
| 01/08/2003 | CN1390078A Linked bass sound resonator |
| 01/07/2003 | US6504939 Loudspeaker system |
| 01/07/2003 | US6504938 Dual-chamber loudspeaker |
| 01/07/2003 | US6504727 Earphone jack holding device |
| 01/07/2003 | US6502662 Speaker having a hemispherical vibrator |
| 01/03/2003 | WO2003001847A1 Directional sensors for head-mounted contact microphones |
| 01/03/2003 | WO2003001842A2 Speaker port system for reducing boundary layer separation |
| 01/03/2003 | WO2003001841A2 Loudspeaker |
| 01/03/2003 | WO2002025992A3 Loudspeaker driver |
| 01/03/2003 | WO2002019760A3 Interchangeable loudspeaker baffle assembly |
| 01/03/2003 | CA2451581A1 Speaker port system for reducing boundary layer separation |
| 01/02/2003 | US20030003954 Business card with integrated paper cell phone |
| 01/02/2003 | US20030003945 Speaker and mobile terminal device |
| 01/02/2003 | US20030002706 Adjustable earphones for personal audio and communication systems |
| 01/02/2003 | US20030002705 Earpiece with an inertial sensor |
| 01/02/2003 | US20030002704 Foldable hook for headset |
| 01/02/2003 | US20030002703 Reflection type of earphone |
| 01/02/2003 | US20030002702 Thermoset composite material baffle for loudspeaker |
| 01/02/2003 | US20030002697 Dual diaphragm speaker |
| 01/02/2003 | US20030002691 High-frequency current suppressor capable of being readily attached to cable or the like and earphone system using the same |