| Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486) |
|---|
| 10/29/1997 | EP0804048A2 Loudspeaker |
| 10/29/1997 | CN2266244Y Planar coaxial loudspeaker |
| 10/29/1997 | CN2266243Y Coaxial double-field double-voice coil loudspeaker |
| 10/28/1997 | US5682436 Multipoint driving loudspeaker having repulsion magnetic-type driving unit |
| 10/28/1997 | US5682435 Apparatus comprising a baffle and a loudspeaker, and loudspeaker for use in the apparatus |
| 10/28/1997 | CA1339519C Loudspeaker |
| 10/23/1997 | DE19615557A1 Vibrational massage device |
| 10/22/1997 | EP0801838A1 Axially focused radial magnet voice coil actuator |
| 10/22/1997 | CN2265654Y Double-driving loudspeaker |
| 10/15/1997 | CN2265050Y Structure of loudspeaker |
| 10/14/1997 | US5675885 Method of winding a coil for an electroacoustic transducer |
| 10/08/1997 | CN2264456Y Planet-type radial magnet speaker |
| 10/08/1997 | CN1161771A 电声换能器 Electro-acoustic transducer |
| 10/08/1997 | CN1161629A Damping type loudspeaker |
| 09/30/1997 | US5673330 Microphone transducer with noise reducing member |
| 09/25/1997 | DE19610997A1 Elektrodynamischer Schallwandler mit Magnetspaltenabdichtung An electrodynamic transducer with magnetic seal columns |
| 09/16/1997 | US5668886 Loudspeaker structure |
| 09/10/1997 | CN2262325Y Voice membrane voice coil for loudspeaker |
| 09/10/1997 | CN2262324Y Loudspeaker magnet |
| 09/04/1997 | WO1997032451A1 Loudspeaker unit |
| 09/03/1997 | EP0793216A2 Pressure chamber driver |
| 09/03/1997 | EP0792569A1 Low tcr wire in high power audio coils |
| 09/03/1997 | CN2261708Y Contactless electronic horn for vehicles |
| 09/03/1997 | CN1158282A Vibration generating apparatus |
| 09/02/1997 | US5664024 Loudspeaker |
| 09/02/1997 | US5664023 Low TCR wire in high power audio coils |
| 08/27/1997 | EP0791405A2 Vibration actuator for pager |
| 08/27/1997 | CN2261128Y High-performance electric loudspeaker |
| 08/26/1997 | US5660397 Devices employing a liquid-free medium |
| 08/21/1997 | DE19620692C1 Electroacoustic transducer type loudspeaker e.g. for low-frequency range |
| 08/20/1997 | CA2197534A1 Vibration actuator for pager |
| 08/13/1997 | EP0788722A1 Apparatus and method of enhancing audio signals |
| 08/13/1997 | CN2259736Y Low-distortion active loud-speaker |
| 08/13/1997 | CN2259735Y Vibrating plate suspended fringe for loudspeaker |
| 08/07/1997 | DE19604088A1 Magnetoelectrodynamic parallel axial drive system for loudspeaker |
| 08/07/1997 | DE19604087A1 Permanent magnetic circuit with oscillating coil arrangement and flow dynamic cooling e.g. for magnetoelectrodynamic coaxial drive systems |
| 08/07/1997 | DE19604086A1 Loudspeaker with integrated electronic sensor sound-pressure regulator e.g. for communications and entertainment engineering |
| 08/06/1997 | CN2259034Y Wireless earphone |
| 07/30/1997 | CN2258682Y Magnetic pad type loadspeaker |
| 07/24/1997 | DE19620690C1 Moving coil loudspeaker directly controlled by switched amplifier |
| 07/16/1997 | CN2257982Y 麦克风受话器 Microphone Receiver |
| 07/10/1997 | WO1997024906A1 Audio voice coil adaptor ring |
| 07/10/1997 | WO1997009842A3 Acoustic device |
| 07/08/1997 | US5647014 Voice coil support for loudspeaker |
| 07/03/1997 | DE19654156A1 Loudspeaker unit covering wide frequency range |
| 06/26/1997 | WO1997022979A1 Polygon magnet structure for voice coil actuator |
| 06/25/1997 | EP0663116A4 Electromagnetic transducer. |
| 06/25/1997 | CN1152850A Electricity-sound transducer lead-wire terminal connection structure |
| 06/24/1997 | US5642333 Electroacoustic transducer and method of winding coil therein |
| 06/24/1997 | US5641910 For vibrating a transducer |
| 06/11/1997 | EP0778721A2 Damping mechanism for loudspeaker membranes |
| 06/11/1997 | EP0777952A1 Electro-acoustic transducer |
| 06/04/1997 | CN1151100A Terminal connection method of coil and terminal connetion structure of coil |
| 06/03/1997 | US5635686 Composite speaker system having a directional adjustable tweeter |
| 05/28/1997 | EP0775433A1 Electromagnetic acoustic transducers |
| 05/28/1997 | EP0775432A1 An electrodynamic transducer |
| 05/22/1997 | WO1997018688A1 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker |
| 05/13/1997 | US5629501 Composite speaker system having a directional adjustable transducer |
| 05/07/1997 | EP0772373A2 Arrangement for radiating acoustic waves |
| 05/06/1997 | US5627903 Variable geometry electromagnetic transducer |
| 05/02/1997 | EP0771133A1 Multiple cone electroacoustic transducer |
| 04/29/1997 | US5625701 Loudspeaker diaphragm attaching |
| 04/29/1997 | US5625699 Speaker device |
| 04/29/1997 | US5624155 Electromagnetic transducer |
| 04/28/1997 | CA2188899A1 Multiple cone transducer |
| 04/23/1997 | EP0663136B1 Diffusing volume electroacoustic transducer |
| 04/23/1997 | CN1148315A Method for mfg. cone of loud-speaker |
| 04/16/1997 | EP0768808A1 Lead frame material for electro acoustic transducer |
| 04/10/1997 | DE19528904C1 Electromechanical transducer for low frequency loudspeaker |
| 04/08/1997 | US5619019 Damper for loudspeaker |
| 04/03/1997 | DE19630701A1 Leistungsverstärker- und Lautsprecherkorb-Integration Power amplifier and loudspeaker frame integration |
| 03/26/1997 | CN2250614Y Loud-speaker connected with wave trap |
| 03/19/1997 | CN2250002Y Improved speaker |
| 03/19/1997 | CN2250001Y Whole frequency spectrum single-body electricity-sound transducer |
| 03/13/1997 | WO1997009859A1 Inertial vibration transducers |
| 03/13/1997 | WO1997009858A1 Vibration transducers |
| 03/13/1997 | WO1997009843A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009842A2 Acoustic device |
| 03/13/1997 | CA2230053A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2229856A1 Vibration transducers |
| 03/12/1997 | EP0762802A2 Multi-point drive type speaker |
| 03/12/1997 | EP0762800A2 Lead frame for electroacoustic transducer and electroacoustic transducer |
| 03/12/1997 | CN1145015A Louderspeaker |
| 03/11/1997 | US5610989 Coil assemblies |
| 03/06/1997 | DE19633097A1 Miniaturised electro=acoustic transducer |
| 03/05/1997 | CN2248960Y Medium high sound frequency booster type coaxial speaker |
| 02/27/1997 | WO1997007648A1 Process for securing the centring component of a conical loudspeaker |
| 02/19/1997 | CN1143303A Loudspeaking damper and its preparing method |
| 02/18/1997 | US5604815 Single magnet audio transducer and method of manufacturing |
| 02/11/1997 | US5602931 Connection line |
| 02/11/1997 | US5602930 Loudspeaker |
| 02/05/1997 | CN2246881Y Loud-speaker |
| 02/04/1997 | US5598625 Method for assembly of radial magnet voice coil actuators |
| 01/29/1997 | EP0756436A1 Magnetic system for electromagnetic transducers |
| 01/23/1997 | DE19529848C1 Conical loudspeaker centring section fixing system |
| 01/22/1997 | EP0755168A2 Hearing aid with electrodynamic acoustic transducer |
| 01/15/1997 | EP0753238A1 Method of manufacturing a loudspeaker spider |
| 01/14/1997 | US5594805 Loudspeaker |
| 01/08/1997 | CN2244796Y Internal-magnetic type electric loadspeaker |
| 12/31/1996 | US5590211 Microphone |