| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 03/17/1998 | US5729615 In-ear type earphone having an ear hanger |
| 03/17/1998 | US5729605 Headset with user adjustable frequency response |
| 03/12/1998 | WO1998010252A2 Wafer fabricated electroacoustic transducer |
| 03/12/1998 | CA2268053A1 Wafer fabricated electroacoustic transducer |
| 03/11/1998 | EP0827677A1 Compact full-range loudspeaker system |
| 03/11/1998 | CN2276234Y Ceramic loudspeaker box |
| 03/10/1998 | US5726395 Isolation/damping mounting system for loudspeaker crossover network |
| 03/05/1998 | WO1998009273A1 Cone reflector/coupler speaker system and method |
| 03/05/1998 | DE19635888A1 Multichannel miniature surrounding-sound headphone set |
| 03/04/1998 | EP0827360A2 A handset and a connector therefor |
| 03/04/1998 | EP0827134A2 Multistage turbulence shield for microphones |
| 03/04/1998 | CN2275779Y Loudspeaker box |
| 03/03/1998 | US5724430 Audio-visual arrangement and system in which such an arrangement is used |
| 02/26/1998 | WO1998008358A1 Microphone holder |
| 02/26/1998 | DE19716315A1 Wide-band loudspeaker for 360 deg radiation |
| 02/25/1998 | EP0825799A2 Reduced size electro-acoustic transducer with improved terminal |
| 02/25/1998 | EP0825797A2 Headset for hearing protectors |
| 02/25/1998 | EP0825796A2 Earphone |
| 02/25/1998 | CN2275314Y Foldable universal double telephone receiver micro phose |
| 02/25/1998 | CN2275313Y Novel microphone joint |
| 02/24/1998 | US5721787 Speaker porting for a communication device |
| 02/24/1998 | US5721786 Loudspeakers |
| 02/24/1998 | US5721785 Small-sized sound generator |
| 02/24/1998 | US5721775 Cordless headset telephone |
| 02/24/1998 | US5721401 Sub-woofer module |
| 02/19/1998 | WO1998007299A1 Recording and play-back two-channel system for providing a holophonic reproduction of sounds |
| 02/19/1998 | WO1998007298A1 A wearable personal audio loop apparatus |
| 02/19/1998 | WO1998007297A1 Line array |
| 02/19/1998 | WO1998007296A1 Acoustical hearing protective devices utilizing dynamically stiff foam and methods of producing same |
| 02/19/1998 | WO1998007294A1 High back emf, high pressure subwoofer |
| 02/19/1998 | WO1998007062A1 Multifunction improved spectacles |
| 02/19/1998 | WO1998006363A1 A device having rotatable legs |
| 02/19/1998 | CA2263177A1 High back emf, high pressure subwoofer |
| 02/19/1998 | CA2234144A1 A device having rotatable legs |
| 02/18/1998 | CN2274853Y Speaker box with natrural stone plates |
| 02/18/1998 | CN1173810A Earmolds for two-way communication devices |
| 02/18/1998 | CN1173685A Vibration actuator for pager |
| 02/17/1998 | US5719823 Ground penetrating sonar |
| 02/12/1998 | WO1998006238A1 Piezoelectric film transducer for use in an implantable hearing system |
| 02/12/1998 | WO1998006233A1 Interchangeable receiver/microphone communication device |
| 02/12/1998 | WO1998006232A1 Dipole speaker headrests |
| 02/12/1998 | CA2262927A1 Dipole speaker headrests |
| 02/11/1998 | EP0823043A1 Arrangement for damping sound and a method for manufacturing the arrangement |
| 02/11/1998 | EP0772952A4 An audio interface garment and communication system for use therewith |
| 02/11/1998 | EP0733217A4 Hydrophone carrier |
| 02/11/1998 | CN2274397Y Disinfecting device for microphone of kara OK |
| 02/11/1998 | CN2274396Y Voice-box with main body of granite and marble |
| 02/11/1998 | CN1037396C Piezoelectric transducer |
| 02/10/1998 | US5717818 Audio signal storing apparatus having a function for converting speech speed |
| 02/10/1998 | US5717775 Voice coil and loudspeaker structure |
| 02/10/1998 | US5717766 Stereophonic sound reproduction apparatus using a plurality of loudspeakers in each channel |
| 02/10/1998 | US5717754 Sanitary telephone handset shroud |
| 02/10/1998 | US5717171 Acoustical cabinet grille frame |
| 02/08/1998 | CA2182816A1 Microphone arm assembly |
| 02/04/1998 | EP0822732A2 Loud Speaker |
| 02/04/1998 | CN2273936Y Mouthpiece with sterilizer for preventing from infection |
| 02/04/1998 | CN2273935Y Loudspeaker box |
| 02/04/1998 | CN1172573A Noise cancellation headset for use with stand or worn on ear |
| 02/04/1998 | CN1172423A Earmuff |
| 02/04/1998 | CN1172422A Noise cancellation apparatus |
| 02/03/1998 | US5715323 Radio attachable to spectacles |
| 02/03/1998 | US5715322 Throat device interconnecting a plurality of drive units and a horn |
| 02/03/1998 | US5715321 Noise cancellation headset for use with stand or worn on ear |
| 02/03/1998 | US5715319 Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements |
| 02/03/1998 | US5714723 Speaker assembly having a coupling mechanism |
| 02/03/1998 | US5714722 Loudspeaker |
| 02/03/1998 | US5714721 Porting |
| 01/29/1998 | DE19731672A1 Loudspeaker stand for audio system |
| 01/29/1998 | DE19630168A1 Coaxial loudspeaker arrangement e.g. for installing in motor vehicle |
| 01/28/1998 | EP0821540A2 Voice coil contacts arrangement |
| 01/28/1998 | EP0821539A2 Loudspeaker enclosure |
| 01/28/1998 | CN2273448Y Device for preventing accomplice from ganging up to make a false confession |
| 01/28/1998 | CN2273201Y Holographic ear magnetic device |
| 01/27/1998 | US5712918 Press-fit ear wax barrier |
| 01/27/1998 | US5712453 Concha headset stabilizer |
| 01/25/1998 | CA2211248A1 Loudspeaker cabinet |
| 01/22/1998 | DE19640412C1 Telecommunication terminal with two acoustic output frequency bands |
| 01/21/1998 | CN2273083Y Structurally improved sound head for microphone |
| 01/21/1998 | CN1170972A Spiral-shaped array for broadband imaging |
| 01/21/1998 | CN1037127C Vibration shell density sensor |
| 01/20/1998 | US5710395 Helmholtz resonator loudspeaker |
| 01/20/1998 | US5710394 Television set speaker system |
| 01/20/1998 | CA2091324C Speaker system |
| 01/15/1998 | WO1998002015A1 Sound capturing method and device |
| 01/15/1998 | WO1998002014A1 Method and apparatus for reproducing sound by natural filtering of sound waves |
| 01/15/1998 | WO1997025790A3 Noise cancellation and noise reduction apparatus |
| 01/14/1998 | EP0818773A2 Ground penetrating sonar |
| 01/14/1998 | EP0818122A1 Improvements in or relating to loudspeakers |
| 01/13/1998 | US5708725 Wireless headphone with a spring-biased activating power switch |
| 01/13/1998 | US5708724 Communications headset having a detachable receiver capsule and cable pivot |
| 01/13/1998 | US5708721 Coil assemblies |
| 01/13/1998 | US5706926 Combination telephone covers and dispenser for covers |
| 01/08/1998 | WO1998001008A1 Anti-eavesdropping device |
| 01/08/1998 | DE19626933A1 Telephone hand-held receiver |
| 01/07/1998 | EP0817529A2 Fixing assembly for a helmet headset |
| 01/07/1998 | EP0817139A2 Device for enabling listeners to preview music recordings |
| 01/07/1998 | EP0816973A1 A notebook personal computer having a speaker cover structure |
| 01/07/1998 | EP0815904A2 Method and apparatus for interactive tennis practice |
| 01/07/1998 | CN1169540A Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
| 01/06/1998 | US5706360 Headset with spectacle temple accommodating openings |