Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486) |
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09/20/1995 | CN2208303Y Wide band speaker |
09/19/1995 | US5452366 Loudspeaker |
09/14/1995 | WO1995024815A1 Electromagnetic loudspeaker |
08/30/1995 | EP0669785A1 Electroacoustic transducer and method of winding coil therein |
08/29/1995 | US5446797 Audio transducer with etched voice coil |
08/23/1995 | CN1107270A Double-brake water wave type resonant plate |
08/17/1995 | WO1995022234A1 An electrodynamic transducer |
08/17/1995 | CA2182610A1 An electrodynamic transducer |
08/08/1995 | US5440630 Telephone receiver with electrostatic discharge prevention |
08/02/1995 | EP0496802B1 Improvements in or relating to loudspeakers |
07/19/1995 | EP0663136A1 Diffusing volume electroacoustic transducer. |
07/19/1995 | EP0663116A1 Electromagnetic transducer |
07/18/1995 | US5434458 Voice coil actuator |
07/18/1995 | CA2019541C Ribbon transducers |
07/18/1995 | CA2019540C Ribbon transducers |
07/12/1995 | EP0614600B1 Loudspeaker |
07/12/1995 | CN2203517Y Coil-moving speaker with full-symmetry structure |
07/11/1995 | US5432758 Electroacoustic transducer |
07/05/1995 | CN2203006Y Structure-improved receiver |
07/04/1995 | US5430805 Planar electromagnetic transducer |
07/04/1995 | US5430804 Loudspeaker with a coated voice coil |
06/20/1995 | US5426707 Electrodynamic loudspeaker with cooling arrangement |
06/13/1995 | US5424592 Electromagnetic transducer |
06/13/1995 | US5424496 Electromagnetic converter |
06/07/1995 | EP0422214B1 Self-cooled loudspeaker |
06/07/1995 | CN2200268Y Mouthpiece of microphone |
06/01/1995 | WO1995015068A1 High gain acoustic transducer |
05/31/1995 | CN1103229A Loudspeaker and manufacturing method |
05/26/1995 | WO1995014363A1 Electromagnetic acoustic transducers |
05/23/1995 | US5418860 Voice coil excursion and amplitude gain control device |
05/23/1995 | US5418336 Sound output device |
05/17/1995 | EP0616751A4 Voice coil actuator. |
05/17/1995 | CN2197783Y Transistor contactless speaker |
05/16/1995 | CA1335611C Electro acoustic transducer and loudspeaker |
05/11/1995 | DE4438330A1 Electroacoustic transducer |
05/03/1995 | EP0650656A1 Loudspeaker. |
04/27/1995 | WO1995011579A1 Device and method for assembly of radial magnet voice coil actuators |
04/27/1995 | CA2172727A1 Device and method for assembly of radial magnet voice coil actuators |
04/19/1995 | CN2195173Y Electric horn with long life contact |
04/18/1995 | US5408533 Motional feedback speaker system with radially polarized magnet and underhung voice-coil |
04/18/1995 | CA2034898C Receiver |
04/18/1995 | CA1335308C Speaker |
04/13/1995 | WO1995010166A1 Variable geometry electromagnetic transducer |
04/06/1995 | DE4434719A1 Loudspeaker |
03/28/1995 | US5402503 Light-weight conical loudspeaker |
03/28/1995 | US5401907 Soldering terminal plate for loudspeakers |
03/22/1995 | EP0644706A1 Horn speaker system |
03/21/1995 | CA2060172C Body sense speaker |
03/14/1995 | US5398288 Coaxial loudspeaker system |
03/09/1995 | DE4329982A1 Electrodynamic sound transducer |
03/08/1995 | EP0642291A2 Loudspeaker diaphragm attaching |
03/07/1995 | US5396563 Earphone |
02/15/1995 | CN1027669C Ball-shaped oscillating membrane loudspeaker |
02/14/1995 | US5390257 Light-weight speaker system |
02/14/1995 | US5388992 Method and apparatus for tactile transduction of acoustic signals from television receivers |
02/01/1995 | CN2188836Y Multi-purpose loudspeaker |
01/24/1995 | US5383267 Automatic manufacturing apparatus |
01/19/1995 | WO1995002275A1 Electromagnetic transducer |
01/11/1995 | EP0541646B1 Panel-form loudspeaker |
01/10/1995 | US5381483 Minimal inductance electrodynamic transducer |
01/04/1995 | EP0632676A1 Loudspeaker and manufacturing method |
01/04/1995 | CN2186977Y Simultaneous homologous high-low sound speaker |
12/14/1994 | EP0400048B1 Improved audio transducer with controlled flexibility diaphragm |
12/13/1994 | US5373565 Spacer for coaxial loudspeakers |
12/06/1994 | US5371806 Loudspeaker |
12/06/1994 | US5371805 Speaker and speaker system employing the same |
11/30/1994 | CN2184301Y Numerical photo-electric sound pick-up |
11/29/1994 | US5369712 Speaker |
11/24/1994 | WO1994027415A1 Voice coil excursion and amplitude gain control device |
11/24/1994 | WO1994027413A1 Loudspeaker with short circuit rings at the voice coil |
11/17/1994 | DE4413945A1 Loudspeaker |
11/09/1994 | EP0624049A2 A loudspeaker apparatus |
11/09/1994 | EP0624048A1 Structure for supporting a vibrating system of a loudspeaker |
11/02/1994 | EP0622971A1 Loudspeaker structure and method of assembling loudspeaker |
11/02/1994 | EP0622970A1 Voice coil and loudspeaker structure |
11/01/1994 | US5361306 Apparatus and methods for enhancing an electronic audio signal |
11/01/1994 | US5361304 Headphone assemblies |
10/26/1994 | CN2181154Y High-effect large power low-frequency loudspeaker |
10/25/1994 | CA2086557C Loudspeaker suspension |
10/18/1994 | US5357587 Distortion reduction in loudspeakers |
10/18/1994 | US5357586 Flow-through air-cooled loudspeaker system |
10/12/1994 | EP0619688A1 Speaker and its manufacturing method |
10/05/1994 | EP0618752A1 Loudspeaker structure |
10/05/1994 | CN2178974Y New magnetic circuit structure moving coil type loudspeaker |
09/28/1994 | EP0616751A1 Voice coil actuator |
09/27/1994 | US5351220 Moving-coil electrodynamic electroacoustical transducer |
09/21/1994 | EP0616483A1 Electroacoustic transducer having a cover part |
09/14/1994 | EP0615398A1 Electroacoustic transducer having a mask |
09/14/1994 | EP0615397A2 Noise suppression circuit for radio transceiver microphone |
09/14/1994 | EP0614600A1 Loudspeaker. |
09/12/1994 | CA2118767A1 Radio transceiver |
09/07/1994 | EP0614327A1 Electroacoustic transducer having a partition wall and a mask wall |
09/07/1994 | CN2176624Y Video-audio coaxial speaker |
08/31/1994 | EP0613322A2 Loudspeaker |
08/30/1994 | US5343533 Transducer flux optimization |
08/18/1994 | WO1994018806A1 Double ended field coil actuator |
08/18/1994 | CA2155656A1 Double ended field coil actuator |
08/17/1994 | EP0610769A2 Loudspeaker |
08/17/1994 | CN2174825Y Combined loudspeaker |
08/10/1994 | EP0610001A2 Loudspeaker |