Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555)
08/2000
08/01/2000US6097830 Transducer diaphragm with thermal strain relief
08/01/2000US6097829 Fiber-honeycomb-fiber sandwich speaker diaphragm and method
08/01/2000US6095280 Concentric tube suspension system for loudspeakers
07/2000
07/27/2000WO2000043240A1 Loud speaker mounting arrangement
07/26/2000CN1261511A Panel-form loudspeakers
07/25/2000US6094495 Horn-type loudspeaker system
07/20/2000DE19859046A1 Tiefton-Membranlautsprecher Bass loudspeaker
07/19/2000EP1020096A1 Miniature full range loudspeaker
07/06/2000DE19963197A1 Image reproduction device has projection surface for through projection, in which sound emission has transparent covering layer, with transducer stimulating projection surface to radiate flexural waves
07/05/2000EP1016901A2 Image reproduction device with projection screen for back-projection and sound emission
07/05/2000CN2386587Y Modified loudspeaker
06/2000
06/29/2000WO2000038474A2 Low-frequency diaphragm speaker
06/29/2000DE19859702A1 Sandwich panel manufacture by joining facing layers to core immediately after core production
06/28/2000EP0860094B1 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker
06/28/2000CN1258427A Speaker and electronic apparatus using speaker
06/27/2000US6081064 Acoustic transducer system
06/22/2000WO2000036875A2 Loudspeaker
06/21/2000EP1010352A1 Vibration exciter
06/21/2000EP1010351A1 Loudspeakers
06/21/2000CN1257638A Loudspeaker suspension device and fabricating met thereof
06/20/2000US6078677 Electroacoustic transducer with improved diaphragm attachment
06/15/2000WO2000035246A1 Electrostatic transducer with nonplanar configured diaphragm
06/15/2000WO2000035242A2 Bending wave panel-form loudspeaker
06/14/2000EP1007390A1 Trim panel comprising an integral acoustic system
06/13/2000US6075866 Electroacoustic transducer having axially extending corrugated supporting means for the diaphragm
06/08/2000WO2000033613A2 Resonant bending wave panel-form loudspeaker
06/08/2000WO2000033612A2 Bending wave acoustic devices
06/07/2000CN1256065A Acoustic appts.
06/02/2000WO2000032012A1 Speaker device
05/2000
05/31/2000EP1005251A1 Method of producing speaker diaphragm and speaker diaphragm formed by this method and speaker using this
05/31/2000CN1255278A Vibration transducers for resonant panel-form loudspeaker and loudspeaker with the same
05/31/2000CN1255277A Panel-form loudspeakers
05/31/2000CN1255035A Supporter of sound body
05/30/2000US6069965 Loudspeaker
05/25/2000WO2000022877A8 Resonant panel loudspeakers
05/18/2000WO2000028781A1 Acoustic device according to bending wave principle
05/18/2000WO2000028780A1 Loudspeakers comprising a phase uncorrelated diffuse sound source
05/18/2000CA2349861A1 Acoustic device according to bending wave principle
05/18/2000CA2349856A1 Loudspeakers comprising a phase uncorrelated diffuse sound source
05/17/2000EP1001651A2 Sounding-body holding device
05/16/2000US6064746 Piezoelectric speaker
05/09/2000US6059926 Method for manufacturing a paper diaphragm for a loud speaker
05/04/2000DE19921210A1 Production of electroacoustic resonant panel of speaker, microphone, involves bonding cell edge and resonant panel housing to a die in predetermined gap
05/03/2000EP0996779A1 Molded aramid sheets
05/02/2000US6058196 Panel-form loudspeaker
04/2000
04/26/2000EP0996311A1 Planar acoustic transducer
04/20/2000WO2000022877A1 Resonant panel loudspeakers
04/20/2000CA2345749A1 Loudspeakers
04/19/2000EP0993758A1 Panel-form loudspeakers
04/19/2000CN1251069A Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
04/12/2000CN1250586A Personal computing devices comprising a resonant panel loudspeaker
04/05/2000CN1249892A Acoustic device
03/2000
03/30/2000WO2000018183A1 Horn-type loudspeaker system
03/30/2000WO2000018182A1 Parametric loudspeaker with electro-acoustical diaphragm transducer
03/30/2000WO2000018180A1 Method for sound reproduction and pillar loudspeaker
03/30/2000CA2345339A1 Parametric loudspeaker with electro-acoustical diaphragm transducer
03/29/2000EP0988775A1 Vibration transducers for resonant panel-form loudspeaker and loudspeaker with the same
03/29/2000EP0988772A1 Personal computing devices comprising a resonant panel loudspeaker
03/28/2000US6044159 Planar film speaker with inertial driver
03/23/2000DE19843079A1 Multiresonanzplatte Multi soundboard
03/22/2000EP0987922A2 Multi-resonant panel
03/21/2000US6039146 Method of manufacturing speaker diaphragm
03/21/2000US6039145 Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same
03/16/2000WO2000015000A1 Panel form acoustic apparatus using bending waves modes
03/16/2000CA2342764A1 Panel form acoustic apparatus using bending waves modes
03/14/2000US6037411 Acoustic vibrational material of fiber reinforcement with epoxy resin and epoxy-reactive polybutadiene
03/09/2000WO2000013464A1 Loudspeakers comprising a resonant panel-form member
03/09/2000DE19840375A1 Schallwand Baffle
03/09/2000CA2341867A1 Loudspeakers comprising a resonant panel-form member
03/08/2000EP0984659A2 Acoustic panel
03/08/2000CN2368241Y Loudspeaker vibration diaphragm
03/02/2000WO2000011909A1 Resonating diaphragms with different frequencies
03/02/2000CA2341590A1 Resonating diaphragms with different frequencies
03/01/2000EP0981928A2 Pane-form loudspeakers
03/01/2000EP0981927A2 Acoustic apparatus comprising an array of loudspeakers
02/2000
02/29/2000US6031926 Panel-form loudspeakers
02/29/2000US6031925 Telescoping loudspeaker has multiple voice coils
02/29/2000US6030561 Methods for making a loudspeaker vibrating diaphragm
02/23/2000EP0980879A2 Flexible polyurethane foam
02/23/2000CN2365852Y Sound vibrating sheet
02/23/2000CN2365851Y Sound vibrating sheet
02/23/2000CN1245628A Panel-form loadspeaker
02/22/2000US6026929 High frequency radially arcuated center speaker cone with variable thickness
02/16/2000EP0979592A1 Slotted diaphragm loudspeaker
02/16/2000CN2364651Y Diaphragm for loudspeaker
02/10/2000WO2000007409A1 Loudspeaker drive unit having a resonant panel-form member
02/10/2000WO2000007408A1 Acoustic device using bending wave modes
02/10/2000CA2338713A1 Loudspeaker drive unit having a resonant panel-form member
02/10/2000CA2338690A1 Acoustic device using bending wave modes
02/03/2000WO2000005925A1 Miniature full range loudspeaker
02/03/2000WO2000005922A1 An anti-noise-electret pick-up
02/03/2000WO2000005920A1 Digital loudspeaker
02/03/2000CA2304318A1 An anti-noise-electret pick-up
02/02/2000EP0976301A1 An electroacoustic transducer and a diaphragm for an electroacoustic transducer
02/02/2000EP0976200A1 Vehicular loudspeaker system
02/02/2000CN2362252Y Plane diaphragm device for loudspeaker
02/02/2000CN1243653A Electro-dynamic exciter
02/02/2000CN1243652A Loudspeakers
01/2000
01/26/2000EP0974243A1 An electroacoustic transducer and a diaphragm for an electroacoustic transducer
01/19/2000EP0973150A2 Ultrasonic transducer and method for its manufacturing
1 ... 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ... 66