Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type
Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486)
08/2000
08/29/2000US6111969 High fidelity, broad band acoustic loudspeaker
08/24/2000WO2000049835A2 Dual cone loudspeaker
08/23/2000CN2393289Y Loudspeaker
08/23/2000CN1264266A Full-range loudspeaker
08/17/2000WO2000048428A2 Exciter for imparting bending wave energy to a panel
08/17/2000WO2000048425A2 Bending wave panel-form loudspeaker
08/17/2000WO2000033612A3 Bending wave acoustic devices
08/17/2000CA2361295A1 Loudspeakers
08/16/2000EP1027818A1 Method and system for controlling the propagation of magnetic fields by electrodynamic/-magnetic transducers, especially in telecommunications devices
08/16/2000CN2392330Y Audio amplifier having automatic series connection attenuator capable of preventing loudspeaker from being damaged by overloading
08/16/2000CN2392329Y Voice-box having automatic series connection attenuator capable of preventing loudspeaker from being damaged by overloading
08/16/2000CN1263685A An electroacoustic transducer and diaphragm for an electroacoustic transducer
08/10/2000WO2000047013A1 Vibration exciter for creating bending wave vibration
08/10/2000DE19903772A1 Electroacoustic converter for radiating sound waves has coil winding applied in doubled form to cylindrical base body outer and inner periphery in alignment, with same number of windings
08/09/2000EP1026919A2 Loudspeaker with connection without soldering
08/09/2000CN1262857A Planar acoustic transducer
08/09/2000CN1262592A Miniature loudspeaker and its manufacturing method
08/09/2000CN1055367C Pseudo-zero impedance loudspeaking technology and loudspeaking circuit
08/03/2000DE19903823A1 Lautsprecher mit lötfreiem Anschluss Speakers with solderless connection
08/02/2000CN1055193C Series piled loudspeaker
08/01/2000US6097828 Electroacoustic transducer
08/01/2000US6095278 Base for holding the tweeter of a speaker
08/01/2000CA2235299C Magnetic fluid loudspeaker assembly with ported enclosure and method of determining parameters thereof
07/2000
07/26/2000EP1022929A2 Loudspeaker with a jacketed magnetic core
07/26/2000CN1261511A Panel-form loudspeakers
07/25/2000US6094495 Horn-type loudspeaker system
07/20/2000WO2000041492A2 Wide band loudspeaker with strip diaphragm
07/19/2000EP1020096A1 Miniature full range loudspeaker
07/18/2000US6091828 Dynamic microphone
07/12/2000CN2387687Y Ball top high pitch horn coaxial all-band loudspeaker
07/11/2000US6088466 Audio voice coil adaptor ring
07/06/2000DE19963413A1 Lautsprecher in gestreckter Bauform Speaker in stretched design
07/05/2000EP1016317A2 Broadband loudspeaker
07/05/2000EP1016289A1 Taut armature reciprocating impulse transducer
07/05/2000CN2386589Y Loudspeaker unit
07/05/2000CN2386588Y Ultrathin loudspeaker
07/04/2000CA2232845C Voice coil actuator ii
06/2000
06/28/2000EP0860094B1 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker
06/28/2000CN2385493Y Loudspeaker voice coil
06/27/2000US6081064 Acoustic transducer system
06/21/2000EP1010352A1 Vibration exciter
06/21/2000EP1010351A1 Loudspeakers
06/21/2000CN1257638A Loudspeaker suspension device and fabricating met thereof
06/15/2000WO2000035242A2 Bending wave panel-form loudspeaker
06/13/2000US6075866 Electroacoustic transducer having axially extending corrugated supporting means for the diaphragm
06/08/2000WO2000033612A2 Bending wave acoustic devices
06/07/2000EP1005782A1 Telephone with a receiver arousing bone-conduction and air-conduction hearing
06/07/2000CN1256065A Acoustic appts.
06/07/2000CN1255936A Synthetic chloroprene rubber adhesive compsn. and process for producing speaker by using same
06/06/2000US6072886 Electroacoustic transducer comprising spring contacts formed with at least one bend
06/02/2000WO2000032012A1 Speaker device
05/2000
05/31/2000CN1255278A Vibration transducers for resonant panel-form loudspeaker and loudspeaker with the same
05/31/2000CN1255277A Panel-form loudspeakers
05/31/2000CN1255036A Multitone ring and driver transducer
05/30/2000US6069965 Loudspeaker
05/25/2000WO2000030405A1 Low cost motor design for rare-earth-magnet loudspeakers
05/25/2000WO2000022877A8 Resonant panel loudspeakers
05/24/2000EP1003350A1 Speaker
05/24/2000EP1002445A1 Sound radiating devices/systems
05/24/2000CN2379985Y Structural improvement of diaphragm of loudspeaker
05/23/2000US6067365 Loudspeaker
05/23/2000US6067364 Mechanical acoustic crossover network and transducer therefor
05/18/2000WO2000028781A1 Acoustic device according to bending wave principle
05/18/2000DE19851748A1 Loudspeaker e.g. dome loudspeaker has ferro-fluid in gap into which moving coil holder penetrates, and interconnected volumes
05/18/2000CA2349861A1 Acoustic device according to bending wave principle
05/17/2000CN1253463A Electromagnetic transducer and portable communication equipment
05/16/2000US6064894 Portable radio telephone having improved speaker and housing assembly for handsfree and private operation
05/10/2000EP0999722A2 Electromagnetic transducer and portable communication device
05/09/2000US6061461 Audio transducer
05/09/2000CA2248433C Inductive braking in a dual coil speaker driver unit
05/03/2000EP0997056A1 Loudspeakers
05/03/2000CN2376694Y Domestic electric appliances remote receiver
05/02/2000CA2218471C Dual coil drive with multipurpose housing
04/2000
04/26/2000EP0996311A1 Planar acoustic transducer
04/26/2000CN2376159Y Loudspeaker with elastic wave structure
04/26/2000CN2376158Y Magnetic circuit device of horn head
04/20/2000WO2000022877A1 Resonant panel loudspeakers
04/20/2000CA2345749A1 Loudspeakers
04/19/2000EP0993758A1 Panel-form loudspeakers
04/13/2000WO2000021330A1 An electroacoustic communications unit
04/13/2000WO2000021329A1 High fidelity, broad band acoustic loudspeaker
04/13/2000CA2345645A1 An electroacoustic communications unit
04/12/2000CN2373963Y Loudspeaker
04/12/2000CN2373962Y Plate-shaped loudspeaker
04/12/2000CN2373961Y Loudspeaker
03/2000
03/30/2000WO2000018183A1 Horn-type loudspeaker system
03/30/2000WO2000018180A1 Method for sound reproduction and pillar loudspeaker
03/29/2000EP0988775A1 Vibration transducers for resonant panel-form loudspeaker and loudspeaker with the same
03/29/2000CN2371752Y Improved combined base for high- and low-pitch loudspeaker
03/29/2000CN2371751Y Loudspeaker
03/29/2000CN2371750Y Loudspeaker
03/29/2000CN2371749Y Ultra-thin loudspeaker with auxiliary diaphragm
03/29/2000CN1248879A Loudspeaker
03/22/2000EP0987611A2 Device for the control of an electronic apparatus
03/22/2000CN2370641Y Liquid state fixed electrode of capacity loudspeaker
03/22/2000CN2370640Y Capacity loud speaker composed of circular conductive vibrative diagraph and injection moulding and printed electrode structure
03/22/2000CN2370639Y Loud speaker
03/16/2000DE19841640A1 Anordnung zur Steuerung eines elektronischen Gerätes Arrangement for controlling an electronic device
03/15/2000EP0985327A1 Flush mounted uni-directional microphone
03/15/2000CN2369439Y Speaker for sensing music rhythm
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