| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 12/26/2001 | CN1328762A Acoustic device |
| 12/26/2001 | CN1328360A Connector for printed circuit and equipment containing same |
| 12/25/2001 | US6333984 Clip-type microphone |
| 12/25/2001 | US6332262 Method of fabricating a loudspeaker suspension device |
| 12/20/2001 | WO2001097563A1 A noise-suppressing receiver |
| 12/20/2001 | WO2001097560A2 Portable audio devices |
| 12/20/2001 | WO2001097559A2 Capacitive micromachined ultrasonic transducers. |
| 12/20/2001 | WO2001096035A1 Electromagnetic induction type actuator and portable communications device |
| 12/20/2001 | WO2001095751A1 Garment with removable electronic devices |
| 12/20/2001 | US20010053233 Electric acoustic converter having a rear surface terminal |
| 12/20/2001 | US20010053232 Lay-in ceiling speaker |
| 12/20/2001 | US20010053231 Audio speaker system for personal computer |
| 12/20/2001 | US20010053230 Acoustic devices |
| 12/20/2001 | US20010052284 Musical tone generation structure of electronic musical instrument |
| 12/20/2001 | US20010052280 Exterior structure for electronic keyboard instrument |
| 12/20/2001 | DE10129288A1 Electronic keyboard instrument has recess on upper portion of back panel, extending in direction in which keyboards are arranged |
| 12/19/2001 | EP1164814A2 Loudspeaker |
| 12/19/2001 | EP1164813A2 Lay-in ceiling speaker |
| 12/19/2001 | EP0995336B1 Method and apparatus for formatting the digital audio signal for use of the sound reproduction |
| 12/19/2001 | EP0818122B1 Improvements in or relating to loudspeakers |
| 12/19/2001 | EP0640262B1 Unidirectional ear microphone and method |
| 12/19/2001 | CN2466858Y Cement audio amplifier |
| 12/19/2001 | CN1327704A Speaker device |
| 12/19/2001 | CN1327703A Speaker unit |
| 12/18/2001 | US6332029 Acoustic device |
| 12/13/2001 | WO2001095665A1 Speaker installation structure |
| 12/13/2001 | WO2001026272A3 Internet based hearing assessment methods |
| 12/13/2001 | WO2001024575A3 Noise suppression system with dual microphone echo cancellation |
| 12/13/2001 | US20010050997 Holder-ring for earphone plug |
| 12/13/2001 | US20010050992 Two-piece wireless electromechanical corpometer/stethoscope |
| 12/13/2001 | US20010050991 Portable audio devices |
| 12/12/2001 | EP1162864A2 Speaker structure |
| 12/12/2001 | EP1162600A2 Active control of automotive induction noise |
| 12/12/2001 | EP1161282A1 Oxygen inhaler mask with sound pickup device |
| 12/12/2001 | EP0896769B1 Acoustic horn for use in cellular flip phones |
| 12/12/2001 | CN2465430Y Improvement for vibration membrane of loudspeaker |
| 12/12/2001 | CN2465429Y Earphone wire winding holder |
| 12/12/2001 | CN2465428Y Casing replaceable earphone |
| 12/11/2001 | US6330206 Hydrophone for acoustic or seismic wave reception |
| 12/06/2001 | WO2001093630A1 Neckphone |
| 12/06/2001 | WO2001093629A2 Cross-fired multiple horn loudspeaker system |
| 12/06/2001 | US20010048123 Semiconductor digital loudspeaker array |
| 12/06/2001 | US20010047903 Active dipole inlet using drone speaker driver |
| 12/06/2001 | DE10061838A1 Earphone for multimedia surround sound creates inner ear extension improves directional information |
| 12/06/2001 | DE10025460A1 Hochtonlautsprecher Tweeter |
| 12/05/2001 | EP1161118A1 Speaker system |
| 12/05/2001 | EP1159853A1 Method for shaping the spatial reception amplification characteristic of a converter arrangement and converter arrangement |
| 12/05/2001 | EP1159852A2 Electronic apparatus incorporating a loudspeaker comprising a bending wave panel member |
| 12/05/2001 | CN2464034Y Speaker made of glass fibre reinforced plastic |
| 12/05/2001 | CN2464033Y 喉控耳机 Throat control headphones |
| 12/05/2001 | CN2464032Y Earphone socket |
| 12/05/2001 | CN2463914Y Long distance sound picking-up microphone |
| 12/05/2001 | CN1325606A Acoustic device according to bending wave principle |
| 12/05/2001 | CN1325605A Microphone array with high directivity |
| 12/05/2001 | CN1325259A Method for producing capacitor-type acoustical pick-up |
| 12/05/2001 | CN1325257A Sound box using method |
| 12/05/2001 | CN1325193A Supersonic-wave emitter/receiver |
| 12/05/2001 | CN1324740A Built-in device of vehicles, automotive guidance system and monitoring apparatus |
| 12/04/2001 | US6327369 Loudspeakers comprising panel-form acoustic radiating elements |
| 12/04/2001 | US6327368 Configuration of providing microphone in duct and active noise reduction device using same |
| 12/04/2001 | US6325757 DIV: ultrasonic camera |
| 12/04/2001 | US6325173 Ear wind shield |
| 11/29/2001 | WO2001091512A2 Directional microphone arrangement and method for signal processing in a directional microphone arrangement |
| 11/29/2001 | WO2001091511A1 Acoustic transmission connection, headset with acoustic transmission connection, and uses of the acoustic transmission connection |
| 11/29/2001 | WO2001091510A1 Loudspeaker enclosure system |
| 11/29/2001 | WO2001091509A1 Speaker using helmet as component and helmet having speaker function |
| 11/29/2001 | WO2001054465A8 System and method for a combined rotatable mechanical and electrical speaker mounting system |
| 11/29/2001 | WO2001048883A3 An audio cord retractor |
| 11/29/2001 | WO2001037519A3 Vehicle accessory microphone |
| 11/29/2001 | US20010046305 Power adapter having a speaker for an electronic device |
| 11/29/2001 | US20010046184 Apparatus for generating acoustic waves |
| 11/29/2001 | US20010045320 Speaker unit |
| 11/29/2001 | DE10123612A1 Ultrasonic wave transmitter/receiver e.g. for use as distance sensor in vehicle, has piezoelectric vibration element attached to inner underside surface, and ultrasonic transmission/reception surface defined by external underside surface |
| 11/28/2001 | EP1158834A2 High frequency loudspeaker |
| 11/28/2001 | EP1158833A2 Method for manufacturing condenser microphone |
| 11/28/2001 | EP0988772B1 Personal computing devices comprising a resonant panel loudspeaker |
| 11/28/2001 | EP0796487B1 High-gain directional transducer array |
| 11/28/2001 | CN1324556A Loudspeakers comprising a phase uncorrelated diffuse sound source |
| 11/27/2001 | US6324294 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 11/27/2001 | US6324293 Microphone sanitizer and holster |
| 11/27/2001 | US6324292 Speaker apparatus |
| 11/27/2001 | US6324052 Personal computing devices comprising a resonant panel loudspeaker |
| 11/27/2001 | US6323049 Method for manufacturing condenser microphone |
| 11/27/2001 | US6321868 Watertight apparatus capable of being immersed and including an acoustic transducer |
| 11/27/2001 | CA2254340C Protective cover assembly having sound transmission characteristics |
| 11/22/2001 | WO2001089264A1 System consisting of a microphone and an amplifier |
| 11/22/2001 | WO2001089263A1 Portable bone conduction and sound amplifying hearing aid |
| 11/22/2001 | US20010043711 Headphone |
| 11/22/2001 | US20010043705 System consisting of a microphone and an amplifier |
| 11/22/2001 | US20010043703 Box-like enclosure for spatially orientable speakers |
| 11/22/2001 | US20010043652 Digital pulse-width-modulation generator |
| 11/22/2001 | US20010042657 Speaker apparatus equipped with means for producing complicated waveform of low frequency with higher improved fidelity |
| 11/22/2001 | DE10124369A1 On-board vehicle navigation system with voice recognition control has microphone connected to system monitor to reduce cabling requirements and allow microphone to be situated near driver |
| 11/22/2001 | DE10024649A1 Headset with ambient sound damping has control elements for setting loudness, preferably sliding controls, mounted on a strap running between earpieces behind the head from ear to ear |
| 11/21/2001 | EP1156699A2 Enclosure for spatially orientable speakers |
| 11/21/2001 | EP1156587A2 Method and apparatus for detecting switch closures |
| 11/21/2001 | EP0776590A4 Bandpass woofer and method |
| 11/21/2001 | CN2461232Y Loudspeaker assembling device |
| 11/21/2001 | CN2461231Y Mark on microphone for interview |
| 11/21/2001 | CN2461230Y 耳机插头 Headphone plug |