| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 01/06/2005 | US20050002535 Remote audio device management system |
| 01/06/2005 | US20050002276 Matching layer assembly for a downhole acoustic sensor |
| 01/06/2005 | US20050001510 Uniform energy megasonic transducer using vessel as resonator |
| 01/06/2005 | CA2528589A1 Acoustically transparent debris barrier for audio transducers |
| 01/06/2005 | CA2528588A1 System and method for delivering audio-visual content along a customer waiting line |
| 01/05/2005 | EP1494503A1 Capacitor sensor |
| 01/05/2005 | EP1494502A2 Lousspeaker system |
| 01/05/2005 | EP1494500A2 Beamforming using omnidirectional microphones in a microphone array |
| 01/05/2005 | EP1493627A1 Speaker device mounted to vehicle door and vehicle door |
| 01/05/2005 | EP1493303A1 Microphone assembly with auxiliary analog input |
| 01/05/2005 | EP1277372B1 Reception system for multisensor antenna |
| 01/05/2005 | CN2669538Y Electroacoustic/acoustoelectric transducer for information acoustic wave transmission system |
| 01/05/2005 | CN1561652A Waveguide louspeaker with adjustable controlled dispersion |
| 01/05/2005 | CN1183802C Multifunctional sound equipment |
| 01/05/2005 | CN1183801C Bone conduction transducer and bone conduction speaker headset therewith |
| 01/05/2005 | CN1183800C Multi-channel headphones |
| 01/05/2005 | CN1183630C Connection structure for signal converter |
| 01/04/2005 | US6839448 Earpiece having detachable battery device |
| 01/04/2005 | US6839445 Piezoelectric speaker |
| 01/04/2005 | US6839443 Bone conduction speaker |
| 01/04/2005 | US6839303 Matched filter, receiving beam-forming apparatus and sonar system |
| 01/04/2005 | US6838610 Arrangement of a rhythmic apparatus with a vehicle sound apparatus, rhythmic accompaniment method and electronic transducer |
| 01/04/2005 | CA2365306C Telephone handset sterilizer method and apparatus |
| 12/30/2004 | US20040267546 Pos system, pos server, shop terminal, sale managing method, and recorded medium |
| 12/30/2004 | US20040267390 Portable music player and transmitter |
| 12/30/2004 | US20040266499 Portable electronic apparatus |
| 12/30/2004 | US20040264731 Speaker apparatus |
| 12/30/2004 | US20040264730 Speaker grille frame |
| 12/30/2004 | US20040264729 Vehicle-mounted speaker device and door panel |
| 12/30/2004 | US20040264728 Electronic device with loudspeaker |
| 12/30/2004 | US20040264727 Bass reflex-type headphone |
| 12/30/2004 | US20040264726 Microphoning |
| 12/30/2004 | US20040264720 Wireless earphone having replaceable battery module |
| 12/30/2004 | US20040264716 Line array electroacoustical transducing |
| 12/30/2004 | US20040264710 Speaker apparatus to be mounted on a vehicle |
| 12/30/2004 | US20040264299 Woven fiber protection cable assembly for use in optical fiber hydrophone array |
| 12/30/2004 | US20040264298 Termination assembly for use in optical fiber hydrophone array |
| 12/30/2004 | DE202004016536U1 Jet treble loudspeaker has rectangular, axially magnetized one-piece magnet element, and at least four 4.5 mm or more wide slots in front panel, which is arranged in front of membrane film |
| 12/30/2004 | DE202004013833U1 Megaphon Megaphone |
| 12/30/2004 | DE10325873A1 Mobilfunkgerät Mobile device |
| 12/29/2004 | WO2004114717A2 Improvements to loudspeaker driver assemblies |
| 12/29/2004 | WO2004082320A3 Integrated loudspeaker system |
| 12/29/2004 | WO2004057910A3 Sound projector |
| 12/29/2004 | WO2004004297A8 Stationary spectral power dependent audio enhancement system |
| 12/29/2004 | WO2002013575A8 Bending wave loudspeaker |
| 12/29/2004 | EP1491405A1 Speaker apparatus to be mounted on a vehicle |
| 12/29/2004 | EP1177705B1 Bone conduction voice transmission apparatus and system |
| 12/29/2004 | EP0732037A4 High gain acoustic transducer |
| 12/29/2004 | CN2667836Y Flashing lamp used for audio ornament |
| 12/29/2004 | CN2667835Y Horn up-down structure |
| 12/29/2004 | CN2667834Y Anti interference hand-free earphone |
| 12/29/2004 | CN2667833Y Microphone |
| 12/29/2004 | CN2667832Y Ear phone with hanging wire function |
| 12/29/2004 | CN1182598C Aerogels, Piezoelectric device and uses thereof |
| 12/29/2004 | CA2529747A1 Sound focusing mechanism and method of estimating acoustic leakage of an object and method of estimating transmission loss of an object |
| 12/28/2004 | US6834978 Earpiece light |
| 12/28/2004 | US6834744 Speaker system |
| 12/28/2004 | CA2349752C Speaker structure |
| 12/23/2004 | WO2004112428A1 Loudspeaker |
| 12/23/2004 | WO2004112427A1 Embedded stereo microphone assembly for mobile phone |
| 12/23/2004 | WO2004112426A1 External stereo microphone assembly having built-in structure |
| 12/23/2004 | WO2004112424A1 Wind noise reduction for microphone |
| 12/23/2004 | WO2004112359A1 Headset wire |
| 12/23/2004 | WO2004111995A1 Device and method for voice activity detection |
| 12/23/2004 | WO2004075159A3 Disposable sanitary cover for audio mouthpieces and receivers |
| 12/23/2004 | WO2004061547A3 Automatic digital music library builder |
| 12/23/2004 | US20040258271 Method and system for providing eating/drinking services |
| 12/23/2004 | US20040258270 Structure around a speaker unit and applied electric or electronic apparatus thereof |
| 12/23/2004 | US20040258269 Loudspeaker assembly |
| 12/23/2004 | US20040258268 Microphone |
| 12/23/2004 | US20040258267 Microphone unit |
| 12/23/2004 | US20040258266 Microphone |
| 12/23/2004 | US20040258260 Apparatus and method for generating acoustic energy in a receiver assembly |
| 12/23/2004 | US20040258246 Bass frequency amplifying apparatus |
| 12/23/2004 | DE202004013507U1 Mobile telephone headset has electrical energy storage device is installed so as to be easily replaceable by the user; accumulator forms part of outer wall of housing when installed |
| 12/22/2004 | EP1489879A2 Holder for a small-sized acoustic element, and mounting structure for the holder |
| 12/22/2004 | EP1489878A2 Loudspeaker assembly |
| 12/22/2004 | EP1489820A1 Headset wire and headset |
| 12/22/2004 | EP1489681A1 Integrated antenna and speaker |
| 12/22/2004 | EP1489596A1 Device and method for voice activity detection |
| 12/22/2004 | EP1489593A2 Underwater sound source comprising piezoelectric or magnetostrictive rods |
| 12/22/2004 | EP1488861A2 Vibration source driving device |
| 12/22/2004 | CN2666069Y Outdoor intelligent sound unit |
| 12/22/2004 | CN2666068Y Telescopic double end microphone |
| 12/22/2004 | CN2666067Y Wireless hand-free receiver with sound absorbing function |
| 12/22/2004 | CN2666066Y 音箱 Speaker |
| 12/22/2004 | CN2666065Y Earphone with telescopic wire |
| 12/22/2004 | CN2666049Y Filling in ear type earphone |
| 12/22/2004 | CN1181673C Mechanical filter of audio system and TV set with the same filters |
| 12/21/2004 | US6834114 Multifunction acoustic device |
| 12/21/2004 | US6832663 Ear coupler |
| 12/21/2004 | CA2377726C Acoustic protective cover assembly |
| 12/16/2004 | WO2004110097A1 Loudspeaker, manufacturing method thereof, and mobile telephone using the same |
| 12/16/2004 | WO2004110035A1 Mobile radio device |
| 12/16/2004 | US20040253977 Speaker supporting device and electronic device comprising this speaker supporting device |
| 12/16/2004 | US20040252859 Loudspeaker device |
| 12/16/2004 | US20040252856 Bass loudspeaker apparatus and multiway loudspeaker system having the same |
| 12/16/2004 | US20040252849 Microphone array for preserving soundfield perceptual cues |
| 12/16/2004 | US20040251747 Multi-frequency acoustic vibration transmission method and system |
| 12/16/2004 | US20040251079 Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems |