| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 02/20/2001 | CA2199087C Fiber optic hydrophone having rigid mandrel |
| 02/20/2001 | CA2198113C Ported loudspeaker system and method with reduced air turbulence |
| 02/15/2001 | WO2001011917A1 Retractable microphone/speaker lead for a belt clip attachment device for a mobile phone or the like |
| 02/15/2001 | WO2001011916A1 Hanging, positionable speaker enclosure |
| 02/15/2001 | WO2001010266A1 Attachment device for mobile phone or the like |
| 02/15/2001 | WO2000070908A3 Bending wave loudspeakers |
| 02/15/2001 | DE10036432A1 Microphone for earphone or headset has hollow arm with vent plugged with non-woven fabric |
| 02/14/2001 | EP1075234A1 Hearing coupler shells of soft pliable thermoplastic material |
| 02/14/2001 | EP0760996A4 Multimedia personal computer with active noise reduction and piezo speakers |
| 02/14/2001 | CN2419775Y Ground stand for loudspeaker box for echo effection |
| 02/14/2001 | CN2419774Y Desk stand for loudspeaker box for echo effection |
| 02/13/2001 | US6188775 Panel-form loudspeakers |
| 02/13/2001 | US6188773 Waterproof type microphone |
| 02/13/2001 | US6186269 Mini surround sound loudspeaker |
| 02/13/2001 | CA2188536C Multimedia personal computer with active noise reduction and piezo speakers |
| 02/08/2001 | WO2001010169A1 Hearing aid with adaptive matching of microphones |
| 02/08/2001 | WO2001010168A2 Loudspeaker |
| 02/08/2001 | WO2001008968A1 Device forming end cap for snorkel or diver's demand valve |
| 02/08/2001 | DE10021257A1 Loudspeaker frame has peripheral section of section to be subjected to trimming process which is treated and trimmed |
| 02/07/2001 | EP1075164A2 Headset noise reduction |
| 02/07/2001 | EP1075127A1 Hands-free use of a communication apparatus |
| 02/07/2001 | EP1075126A2 Holder for a small size acoustic transducer |
| 02/07/2001 | EP1074310A2 Wing type ultrasonic transducer |
| 02/07/2001 | EP1074168A1 Telephone with means for anhancing the low-frequency response |
| 02/07/2001 | CN1283067A Electroacoustic inverter unit possessing bisound source structure |
| 02/07/2001 | CN1283066A Cross complementing sound enclosure with lower limitation of cavity frequency and low distortion |
| 02/07/2001 | CN1283065A Head bearing earphone |
| 02/06/2001 | US6185627 Analog and digital audio auto sense |
| 02/06/2001 | US6185305 Method and system for broadcasting digital audio to a radio |
| 02/06/2001 | US6183419 Multiplexed array transducers with improved far-field performance |
| 02/01/2001 | WO2001008446A1 Electric signal processing for electroacoustic transducer |
| 02/01/2001 | WO2000067524A3 Bending wave loudspeakers |
| 02/01/2001 | WO2000065869A3 Bending-wave panel loudspeakers |
| 02/01/2001 | DE10006705A1 Audio loudspeaker is mounted within an inflated balloon of flexible material |
| 01/31/2001 | EP1073312A2 Electric-acoustic transducer having dual voice coil drivers |
| 01/31/2001 | EP1073311A2 Loudspeaker system |
| 01/31/2001 | EP1072177A1 Apparatus for the redistribution of acoustic energy |
| 01/31/2001 | EP1072167A2 Apparatus having a housing which accommodates a sound transducer and which has a passage |
| 01/31/2001 | CN2417653Y Wire intaking type earphone and speaking trumpet unit |
| 01/31/2001 | CN1282200A Microphone |
| 01/30/2001 | US6181801 Wired open ear canal earpiece |
| 01/30/2001 | US6181799 Greetings or the like card |
| 01/30/2001 | US6179257 Supporting element for instruments or speakers |
| 01/30/2001 | CA2076288C Microphone and loudspeaker system |
| 01/25/2001 | WO2001006811A1 Noise control device |
| 01/25/2001 | WO2001005305A1 Focused ultrasound transducers and systems |
| 01/25/2001 | WO2000048428A3 Exciter for imparting bending wave energy to a panel |
| 01/25/2001 | DE19953770A1 Loudspeaker box has diffuser consisting of mirror image doubled half-cone and three-edged prism geometric base bodies with common base surfaces between two loudspeakers |
| 01/25/2001 | CA2378049A1 Focused ultrasound transducers and systems |
| 01/24/2001 | EP1071309A2 Headphone with adjustable localization of the sound presentation generated by it |
| 01/24/2001 | EP1071308A2 Mid and high frequency loudspeaker systems |
| 01/24/2001 | EP1071307A1 Hearing protector, hearing protection set and method for manufacturing a hearing protector |
| 01/24/2001 | EP1070437A1 Acoustic device |
| 01/24/2001 | EP1070309A2 Method and apparatus for conveying audiovisual information |
| 01/24/2001 | CN2416698Y inner earphone |
| 01/24/2001 | CN1281628A Mechanical acoustic crossover network and transducer thereof |
| 01/24/2001 | CN1281327A Full-automatic transceiver of acoustic earpiece |
| 01/23/2001 | US6178251 Collar microphone |
| 01/23/2001 | US6178250 Acoustic point source |
| 01/23/2001 | US6178247 Headphone apparatus |
| 01/23/2001 | US6176346 Nesting speaker assembly |
| 01/23/2001 | US6176345 Pistonic motion, large excursion passive radiator |
| 01/23/2001 | CA2221178C Wholly microfabricated biosensors and process for the manufacture and use thereof |
| 01/18/2001 | WO2001003623A1 A method of producing a hood, and a hood produced according to the method |
| 01/18/2001 | DE19928241A1 Loudspeaker for securing a simplified moving coil connector has a frame to fasten a membrane and a magnetic unit and a cover to fit on the frame and hold parts for a loudspeaker separating filter and solderless connectors. |
| 01/18/2001 | DE10026578A1 Vergrösserte Ohrmuschel mit anpassbarem Ohrpolster und verbesserter Geräuschdämpfung Enlarged ear with adjustable ear pads and improved noise reduction |
| 01/18/2001 | CA2375521A1 A method of producing a hood, and a hood produced according to the method |
| 01/17/2001 | EP1069803A2 Loudspeaker |
| 01/17/2001 | EP1069802A2 Headphone |
| 01/17/2001 | EP1069414A1 Hydrophone with low distortion |
| 01/17/2001 | EP1068772A1 Disposable sleeve assembly for sound control device and container therefor |
| 01/17/2001 | EP1068771A1 Earphone without impulse noise for protection against conductive hearing loss |
| 01/17/2001 | EP1068770A1 Acoustic device relying on bending wave action |
| 01/17/2001 | EP1068767A1 Microphone and receiver for automatic accompaniment |
| 01/17/2001 | EP1067868A1 Ultrasonic camera |
| 01/17/2001 | CN2415570Y Surrounding sound speaker system with sound guide tube |
| 01/17/2001 | CN2415569Y Moving built-up speaker system dustproof cover |
| 01/17/2001 | CN2415568Y Triangular receiver |
| 01/17/2001 | CN2415567Y Double-effct handfree receiver of mobile phone |
| 01/16/2001 | US6175633 Radio communications apparatus with attenuating ear pieces for high noise environments |
| 01/13/2001 | CA2314633A1 Low distortion hydrophone |
| 01/11/2001 | WO2001003470A1 Earphone without impulse noise and surroundings blockade |
| 01/11/2001 | WO2001003469A1 Earpiece without impulse and high frequency noise |
| 01/11/2001 | WO2001003468A2 Acoustic protective cover assembly |
| 01/11/2001 | WO2001003467A2 Bending wave acoustic device |
| 01/11/2001 | WO2001003405A1 Communication earpiece without impulse and high frequency noise |
| 01/11/2001 | WO2000046786A3 A headphone comprising bending-wave loudspeakears |
| 01/11/2001 | DE19925944A1 Lautsprecher mit einem frontseitig aufgesetzten Dichtelement und Verfahren zur Herstellung eines solchen Lautsprechers Loudspeaker with a front mounted sealing element and method of manufacturing such a loudspeaker |
| 01/11/2001 | DE19922395C1 Deckenelement Ceiling element |
| 01/10/2001 | EP1067818A2 Video equipment speaker device with acoustic lens |
| 01/10/2001 | CN2414572Y Telephone set disinfecting pad |
| 01/10/2001 | CN2414571Y Multi-purpose earphone for mobile telephone |
| 01/10/2001 | CN1279877A Loudspeaker system |
| 01/10/2001 | CN1279574A Loudspeaker system for display device |
| 01/10/2001 | CN1279561A Loudspeaker device with acoustic lenses for video apparatus |
| 01/10/2001 | CN1060608C Box for loud-speaker system |
| 01/09/2001 | US6173064 Isolation/damping mounting system for loudspeaker crossover network |
| 01/09/2001 | US6173059 Teleconferencing system with visual feedback |
| 01/09/2001 | US6173058 Sound processing unit |
| 01/09/2001 | US6170603 Acoustic wall |