| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 06/03/1986 | US4592444 Low frequency speaker enclosure |
| 05/28/1986 | EP0182140A1 Hybrid ultrasonic sensor with electronic circuitry |
| 05/27/1986 | US4591668 Vibration-detecting type microphone |
| 05/27/1986 | US4591020 Loudspeaker enclosure with isolation of loudspeaker vibration |
| 05/21/1986 | EP0181506A2 Flexible piezoelectric transducer assembly |
| 05/20/1986 | US4590333 Multidriver loudspeaker |
| 05/20/1986 | US4590332 Phase coherent low frequency speaker |
| 05/13/1986 | US4589134 Personal sound system |
| 05/13/1986 | US4588868 Headset |
| 05/13/1986 | US4588867 Ear microphone |
| 05/13/1986 | US4588042 Parabolic speaker |
| 05/13/1986 | CA1204533A1 Rubber material |
| 04/29/1986 | US4585090 Isotrophic loudspeaker |
| 04/29/1986 | CA1203886A1 Microphone apparatus |
| 04/29/1986 | CA1203885A1 Loudspeaker construction and method of assembly |
| 04/24/1986 | WO1986002508A1 Device for the retention, acoustic sealing and vibration isolation of an electroacoustic converter |
| 04/23/1986 | EP0178854A2 Ultrasonic horn assembly |
| 04/22/1986 | US4584702 Noise cancelling telephone transmitter insertable in telephone handset receptacle |
| 04/15/1986 | US4582966 Tele disc guard |
| 04/15/1986 | US4582162 For mounting on a rear deck panel of a hatchback vehicle |
| 04/15/1986 | CA1203218A1 Lamp with speaker |
| 04/08/1986 | US4581685 Ultrasonic transducer |
| 04/08/1986 | US4580655 Defined coverage loudspeaker horn |
| 04/08/1986 | US4580654 Portable sound speaker system |
| 04/08/1986 | CA1203014A1 Speaker diaphragm |
| 04/01/1986 | CA1202713A1 Transmitter assembly for a telephone handset |
| 04/01/1986 | CA1202572A1 Systems of speaker arrangements |
| 03/26/1986 | EP0175494A1 Earphone adaptors |
| 03/25/1986 | US4578545 Contact and terminal for telephone transmitter |
| 03/19/1986 | EP0174837A2 Piezoelectric coaxial cable having a helical inner conductor |
| 03/18/1986 | US4577070 Holder for inconspicuously mounting a microphone |
| 03/13/1986 | WO1986001671A1 System and method for compensating hearing deficiences |
| 03/13/1986 | WO1986001670A1 Directional speaker system |
| 03/13/1986 | WO1986001669A1 Movable apparatus for sound wiring and/or visualization |
| 03/12/1986 | EP0173864A1 Porous matching layer in an ultrasonic applicator |
| 03/11/1986 | US4574906 Outdoor speaker |
| 03/11/1986 | CA1201824A1 Method of manufacturing an apodized ultrasound transducer |
| 03/11/1986 | CA1201659A1 Stereophonic baffle |
| 03/04/1986 | US4573573 Protective covering for portable audio devices |
| 02/26/1986 | EP0172705A2 Loudspeaker system |
| 02/25/1986 | US4572325 Stereophonic baffle |
| 02/25/1986 | US4572324 Ear piece construction |
| 02/25/1986 | US4571746 Collapsible headband |
| 02/18/1986 | US4571464 Electret microphone |
| 02/18/1986 | US4570746 Wind/breath screen for a microphone |
| 02/18/1986 | US4570742 Microphone apparatus |
| 02/11/1986 | US4570038 Sanitary cover for telephones and the like |
| 02/11/1986 | US4569812 Polymethyl methacrylate; molding around removable mandrel |
| 02/11/1986 | US4569414 Augmented speaker enclosure |
| 02/05/1986 | EP0169854A1 Suspension for electro-acoustical transducers |
| 02/04/1986 | US4569077 Transducer mounting assembly |
| 02/04/1986 | US4569076 Motion picture theater loudspeaker system |
| 02/04/1986 | US4568851 Piezoelectric coaxial cable having a helical inner conductor |
| 02/04/1986 | US4567959 Speaker adapted to corner-loaded installation |
| 02/04/1986 | CA1200308A1 Directional microphone assembly |
| 02/04/1986 | CA1200208A1 Directable microphone system |
| 01/29/1986 | EP0169727A2 Broadband radial vibrator transducer |
| 01/29/1986 | EP0169215A1 Loudspeaker system with boundary layer control |
| 01/28/1986 | US4567608 Microphone for use on location |
| 01/28/1986 | US4566557 Flat acoustic diffuser |
| 01/28/1986 | CA1200006A1 Oto-laryngeal communication system |
| 01/21/1986 | US4566120 Loudspeaker system and loudspeaker for use in a loud-speaker system for converting an n-bit digitized electric signal into an acoustic signal |
| 01/21/1986 | US4565905 Loudspeaker construction |
| 01/21/1986 | US4565258 Stereo headset system for use in a wet environment |
| 01/21/1986 | CA1199719A1 Piezo-electric ultrasonic transducer with damped suspension |
| 01/08/1986 | EP0166976A1 Ultrasonic transducer system |
| 01/03/1986 | WO1986000189A1 Multidriver loudspeaker |
| 01/03/1986 | WO1986000188A1 Hygienic device for telephone |
| 01/02/1986 | EP0166543A2 Mobile sound field correcting device |
| 01/02/1986 | EP0166180A1 Hydrophone |
| 01/02/1986 | EP0165997A1 Sound reproduction system |
| 01/01/1986 | CN85200255U Standard underwater sound projecting transducer in the 15-25khz range |
| 12/31/1985 | US4562590 Water-resistant device for protecting an electronic sound producing apparatus and loudspeaker system |
| 12/18/1985 | EP0164942A2 Multidriver loudspeaker |
| 12/18/1985 | EP0164343A1 Electroacoustic sound transmitter |
| 12/17/1985 | US4559642 Phased-array sound pickup apparatus |
| 12/17/1985 | US4559584 Combination lighting device and loudspeaker |
| 12/17/1985 | US4559418 Ceramic microphone |
| 12/17/1985 | US4558762 Loudspeaker |
| 12/03/1985 | US4556122 Ear acoustical hearing aid |
| 12/03/1985 | US4556121 For securing a microphone or earpiece |
| 11/27/1985 | EP0162618A2 Underwater acoustic wave transmitting and receiving unit |
| 11/26/1985 | US4555797 Hybrid loudspeaker system for converting digital signals to acoustic signals |
| 11/26/1985 | US4555598 Teleconferencing acoustic transducer |
| 11/21/1985 | EP0161735A2 Transmitter assembly for a telephone handset |
| 11/19/1985 | US4554414 Multi-driver loudspeaker |
| 11/19/1985 | US4553630 Speaker with tweeter angle adjusting device |
| 11/19/1985 | US4553628 Speaker system |
| 11/12/1985 | US4552242 Coaxial type composite loudspeaker |
| 11/12/1985 | CA1196717A1 Loudspeaker enclosure arrangement for voice communication terminals |
| 11/07/1985 | WO1985005004A1 A loudspeaker system |
| 11/06/1985 | EP0160478A2 Improved moving-coil loudspeaker unit |
| 11/05/1985 | US4551584 Earphone set |
| 11/05/1985 | US4550796 Mount for loudspeaker on vehicle panel |
| 10/29/1985 | US4550429 Shock absorbing transducer module |
| 10/29/1985 | US4550428 Driver unit for automotive audio speaker |
| 10/29/1985 | US4550230 Speaker grille with snap-in fastener system |
| 10/29/1985 | US4549631 Multiple porting loudspeaker systems |
| 10/29/1985 | CA1196083A1 Anti-side tone transmitter |
| 10/29/1985 | CA1195934A1 Motorcycle audio system |