| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 06/06/2001 | EP0848893B1 Headset with ear cushion and means for limiting the compression of the cushion |
| 06/05/2001 | US6243477 Audio system with partitioned input and output compartments |
| 06/05/2001 | US6243473 Laptop computer with loudspeaker(s) |
| 06/05/2001 | US6243472 Fully integrated amplified loudspeaker |
| 06/05/2001 | US6243138 Camera including means for acquiring bi-directional sound |
| 06/05/2001 | US6241674 Medical ultrasound diagnostic imaging method and system with nonlinear phase modulation pulse compression |
| 06/05/2001 | US6241041 Multi-cone earplug and method of forming and using |
| 06/02/2001 | CA2291348A1 Speaker cabinet with three-dimensional resolution |
| 05/31/2001 | WO2001039542A2 Speaker and motor vehicle assembly |
| 05/31/2001 | WO2001039541A2 Flat loudspeaker system for bass reproduction |
| 05/31/2001 | WO2001024483A3 Device for combining environment and telecommunication signals |
| 05/31/2001 | WO2001022770A3 Longitudinally divided loudspeaker port with increased aerodynamic efficiency |
| 05/31/2001 | DE10046874A1 Microphone e.g. for use in vehicle, has two-part membrane with at least part of outer area that is thickened and with which membrane rests on microphone holder |
| 05/30/2001 | EP1104145A1 Mobile communication unit with bone conduction speaker |
| 05/30/2001 | EP1103162A1 Infrared helmet |
| 05/30/2001 | EP1103044A1 Heat dissipating device, especially for high performance ultrasonic transducers |
| 05/30/2001 | CN1297669A Apparatus having electroacoustic transducer mounted on PC board with aid of holding means |
| 05/30/2001 | CN1297668A Noise control device |
| 05/30/2001 | CN1297321A Noise-reducing earpiece |
| 05/29/2001 | US6239348 Sound system and method for creating a sound event based on a modeled sound field |
| 05/29/2001 | US6238061 Combination lighting system, alarm clock, radio and television having secondary power supply |
| 05/29/2001 | US6237715 Subwoofer assembly |
| 05/29/2001 | US6237714 Article for collecting sound for ears |
| 05/29/2001 | CA2204880C Noise cancellation apparatus |
| 05/25/2001 | WO2001037611A1 System and method to enhance reproduction of sub-bass frequencies |
| 05/25/2001 | WO2001037609A1 Acoustic matching material, method of manufacture thereof, and ultrasonic transmitter using acoustic matching material |
| 05/25/2001 | WO2001037608A1 Resonance cover and sound receiving set having the same |
| 05/25/2001 | WO2001037524A1 Reconfigurable headset switch |
| 05/25/2001 | WO2001037519A2 Vehicle accessory microphone |
| 05/25/2001 | WO2001037435A2 Super directional beamforming design and implementation |
| 05/25/2001 | WO2001001521A3 Power and guidance connector |
| 05/25/2001 | WO2000078091A3 Stiffened membrane assemblies |
| 05/25/2001 | CA2387797A1 Super directional beamforming design and implementation |
| 05/24/2001 | US20010001603 Process and device for focusing acoustic waves |
| 05/23/2001 | EP1101388A1 Louspeaker drive unit having a resonant panel-form member |
| 05/23/2001 | EP1101387A1 Acoustic device using bending wave modes |
| 05/23/2001 | EP1101386A1 Head phone |
| 05/23/2001 | EP1100628A2 Off-aperture electrical connection for ultrasonic transducer |
| 05/23/2001 | CN2431694Y Combined microphone for covering |
| 05/23/2001 | CN1296720A Acoustic device relying on bending wave action |
| 05/23/2001 | CN1296719A Acoustic device |
| 05/22/2001 | US6236732 Headphone CD player |
| 05/17/2001 | WO2001035697A1 Microphone holder |
| 05/17/2001 | WO2001035696A2 Digital loudspeaker |
| 05/17/2001 | WO2000033634A3 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement |
| 05/17/2001 | DE10049492A1 Piezoelectric element for speaker in helmet, has curved flat piezoelectric film provided within speaker, with its radius of curvature lesser than specific value |
| 05/17/2001 | DE10033985A1 Hands-free microphone holder for motor vehicle hands-free system, has microphone carrier joined to motor vehicle safety belt so that when safety belt is put on microphone is moved into neck/shoulder region |
| 05/16/2001 | EP1100218A2 Portable audio listening apparatus |
| 05/15/2001 | US6233345 Personal earphone assembly for mounting upon eyeglasses |
| 05/15/2001 | US6233344 Ear-hook boom microphone |
| 05/15/2001 | US6233343 Power adapter having a speaker for an electronic device |
| 05/15/2001 | US6233002 Earphone system with operability improved and terminal equipment system with the earphone system |
| 05/10/2001 | WO2001033904A1 An electro-acoustic communications unit |
| 05/10/2001 | US20010001123 Ultrasonic transducer with improved compressive loading |
| 05/10/2001 | CA2386413A1 An electro-acoustic communications unit |
| 05/09/2001 | EP1098548A2 Acoustic system comprised of components connected by wireless |
| 05/09/2001 | CN2429981Y Non-held microphone |
| 05/08/2001 | US6229901 Auditory feedback device |
| 05/08/2001 | US6226927 Automobile vehicle door provided with a multicomponent module a part of which forms an acoustic cavity |
| 05/03/2001 | WO2001031975A2 Ultra low frequency transducer and loud speaker comprising same |
| 05/03/2001 | WO2001031686A2 Impact-reinforced piezocomposite transducer array |
| 05/02/2001 | EP1096757A2 Earphone jack holding device |
| 05/02/2001 | EP1095539A1 High power ultrasonic transducer |
| 05/02/2001 | EP1095537A1 Head worn entertainment and/or communication device |
| 05/02/2001 | EP0945042B1 Panel-form loudspeaker |
| 05/02/2001 | CN2428936Y Glassees speaking earphone |
| 05/02/2001 | CN2428935Y Lower-gripping type earphone microphone |
| 05/02/2001 | CN2428934Y Handfree receiver |
| 05/02/2001 | CN2428933Y Interchangeable mobile telephone microphone |
| 05/02/2001 | CN1293881A Speaker device |
| 05/02/2001 | CN1293880A Telephone with means for enhancing low-frequency response |
| 05/02/2001 | CN1293527A Telescopic microphone |
| 05/01/2001 | US6226605 Digital voice processing apparatus providing frequency characteristic processing and/or time scale expansion |
| 05/01/2001 | US6223853 Loudspeaker system incorporating acoustic waveguide filters and method of construction |
| 04/26/2001 | WO2001030113A1 Microphone |
| 04/26/2001 | WO2001029910A1 Electronic equipment with loudspeaker |
| 04/26/2001 | WO2001028699A1 Device for driving vibration source |
| 04/26/2001 | WO2000054551A3 Apparatus including an electroacoustic transducer having terminal contacts which extend in the direction of the transducer axis and including a printed circuit board having mating contacts |
| 04/26/2001 | WO2000041434A3 Flush-mount pivoting speaker |
| 04/25/2001 | EP1094684A2 Sound producing device for an electronic instrument such as a telephone |
| 04/25/2001 | EP1093701A1 Ear level noise rejection voice pickup method and apparatus |
| 04/25/2001 | CN2427944Y Chair like voice box ear-phone frame |
| 04/25/2001 | CN1292984A Directional microphone |
| 04/24/2001 | US6222929 Speaker having middle-high sound speakers |
| 04/24/2001 | US6220386 Flexible aerodam to reduce the sound of turbulence |
| 04/19/2001 | WO2001028290A1 Assembly and method for covering small earphones |
| 04/19/2001 | WO2001028285A1 Video camera with microphone |
| 04/19/2001 | WO2001028284A1 Sound-collecting device |
| 04/19/2001 | WO2001028282A1 Sound-collecting device |
| 04/19/2001 | WO2001028280A1 Communication helmet |
| 04/19/2001 | WO2001028279A1 Speaker device |
| 04/19/2001 | WO2001028195A1 Cellular telephone, personal digital assistant, and pager unit with capability of short range radio frequency transmissions |
| 04/19/2001 | WO2001027738A1 Device with speech signal input means and control signal input means |
| 04/19/2001 | WO2001003405A8 Communication earpiece without impulse and high frequency noise |
| 04/19/2001 | DE10050547A1 Headphone clipped behind ear via hanging clip attached to headphone via rotary shaft inclined at 45 degrees to normal at centre of headphone |
| 04/19/2001 | CA2355216A1 Speaker device |
| 04/18/2001 | EP1092318A1 Housing having a loudspeaker system |
| 04/18/2001 | CN1292194A Mobile telephone with loudspeaker |
| 04/17/2001 | US6219430 Electronic appliance with loudspeaker unit |
| 04/17/2001 | US6219429 Connection seat for mounting a microphone for exclusive use along with musical instrument |