Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 7 - Diaphragms for electromechanical transducers; Cones
Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555)
01/2001
01/03/2001EP1065910A2 Speaker
01/02/2001US6169809 Visual display means incorporating loudspeakers
12/2000
12/28/2000WO2000079833A2 Distributed mode acoustic device
12/28/2000DE19928812A1 Loudspeaker for installing into motor vehicles comprises a sealing element which is produced as a single component together with the membrane rim
12/27/2000CN2412341Y Cantilever oscillating membrane structure for mic and loudspeaker
12/26/2000US6165980 Distamycin derivatives, wherein the distamycin formyl group is substituted by a benzoyl group bearing alkylating group a bis-halo-ethylamino or a n-alkyl-n-haloethyl-amino group, while amidine group is substituted by various nitrogen groups
12/21/2000WO2000078095A1 Flat acoustic transducer
12/21/2000WO2000078091A2 Stiffened membrane assemblies
12/21/2000WO2000078090A2 Bending wave acoustic device
12/21/2000DE19925787C1 Verfahren zur Herstellung von Membranen für elektroakustische Wandler sowie Membranen Process for the preparation of membranes for electroacoustic transducers, as well as membranes
12/20/2000EP1061771A2 Speaker
12/20/2000EP1060637A1 Acoustic element
12/20/2000CN1277529A Plate loudspeaker with wide and free space
12/19/2000CA2173580C Variable geometry electromagnetic transducer
12/14/2000WO2000076269A1 Method for producing membranes for electroacoustic transducers and membranes obtained by this method
12/14/2000WO2000054549A3 Vibration exciters for driving bending wave panels
12/13/2000CN2410839Y Loudspeaker with integral forming half-spherical vibrating basin
12/12/2000US6160898 Suspension mount for sound reproduction devices according to the flexural wave principle
12/07/2000WO2000048425A3 Bending wave panel-form loudspeaker
11/2000
11/29/2000EP1055351A1 Acoustic device comprising a panel member relying on bending wave action
11/29/2000CN1275300A Miniature full range loudspeaker
11/28/2000US6154557 Acoustic transducer with selective driving force distribution
11/28/2000US6154556 Dome speaker
11/28/2000CA2283281C Slotted diaphragm loudspeaker
11/28/2000CA2145629C Diffusing volume electroacoustic transduces
11/23/2000WO2000070910A2 Bending wave panel loudspeakers
11/23/2000WO2000070909A2 Bending wave acoustic device
11/23/2000WO2000070908A2 Bending wave loudspeakers
11/23/2000WO2000038474A3 Low-frequency diaphragm speaker
11/22/2000CN2407544Y Loudspeaker frame
11/22/2000CN1274513A Anti-noise-electret pick-up
11/21/2000US6151402 Vibration transducers
11/21/2000US6148953 Loudspeaker component and resin composition therefor
11/16/2000WO2000069214A2 Vibration exciter
11/16/2000WO2000069212A1 Small electronic articles for personal use
11/15/2000EP1052879A2 Flat element
11/14/2000US6147594 Method and apparatus for conveying audiovisual information
11/09/2000WO2000067525A2 Piezoelectric vibration exciter
11/09/2000WO2000067524A2 Bending wave loudspeakers
11/09/2000WO2000067523A2 Moving coil driver
11/08/2000EP1050190A1 Active acoustic devices comprising panel members
11/08/2000CN2405389Y Loud speaker
11/08/2000CN1273015A Method of producing speaker diaphragm and speaker diaphragm formed by this method and speaker using this
11/07/2000US6144746 Loudspeakers comprising panel-form acoustic radiating elements
11/02/2000WO2000065870A1 Loudspeaker diaphragm
11/02/2000WO2000065869A2 Bending-wave panel loudspeakers
11/02/2000EP1049107A1 Substance activating method and device
10/2000
10/31/2000US6141430 Electroacoustic transducer
10/31/2000US6141429 Speaker
10/26/2000WO2000064217A1 Flat surface loudspeaker and method for operating the same
10/26/2000DE19917584A1 Flat panel loudspeaker operating method
10/25/2000EP1047284A2 Electroacoustic transducer with maximum pressure loading
10/25/2000CN1271508A Resonant mode panel-loudspeakers
10/25/2000CN1271245A Loudspeaker
10/24/2000US6137891 Variable geometry electromagnetic transducer
10/18/2000EP1045614A1 An anti-noise-electret pick-up
10/18/2000CN2402087Y Loudspeaker press board
10/17/2000US6134337 Loudspeaker
10/12/2000WO2000060902A1 Electroacoustic transducer with a diaphragm, and method for fixing a diaphragm in such transducer
10/12/2000WO2000060573A1 Systems and methods for passive pressure-compensation for acoustic transducers
10/11/2000CN1269959A Vibration exciter
10/11/2000CN1269958A Loudspeakers
10/11/2000CN1269755A Trim panel comprising integral acoustic system
10/04/2000EP1040727A2 Moving-coil loudspeaker
09/2000
09/27/2000CN1267679A Moulding compound Foamex. its forming method and loudspeaker diaphragm constituted therewith
09/20/2000EP1036485A1 Device having two coaxially disposed bodies which are movable relative to one another along a translation axis
09/20/2000EP1036484A1 Resonant mode panel-loudspeakers
09/14/2000WO2000054555A1 Speaker edge
09/14/2000WO2000054552A1 Resonant-mode panel loudspeaker with light emitter
09/14/2000WO2000054551A2 Apparatus including an electroacoustic transducer having terminal contacts which extend in the direction of the transducer axis and including a printed circuit board having mating contacts
09/14/2000WO2000054549A2 Vibration exciters for driving bending wave panels
09/14/2000WO2000054548A2 Electronic apparatus incorporating a loudspeaker comprising a bending wave panel member
09/14/2000WO2000036875A3 Loudspeaker
09/14/2000CA2365308A1 Electronic apparatus
09/08/2000WO2000052961A1 Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
09/08/2000CA2330005A1 Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
09/07/2000DE10010491A1 Injected foamed resin structure forming loudspeaker cone especially, comprises foam sandwiched by thin, non-foamed resin layers, with further single, unfoamed layer, produced in single machine and operation
09/06/2000EP1033062A1 Telescoping loudspeaker having multiple coaxial voice coils
08/2000
08/31/2000WO2000035242A3 Bending wave panel-form loudspeaker
08/31/2000DE10008323A1 Lautsprecher Speaker
08/30/2000EP1032244A2 Electroacoustic transducer
08/30/2000CN1265001A Electrosonic energy transducer
08/30/2000CN1265000A Cantilever-type vibration membrane structure for miniature microphone and loudspeaker and its making method
08/29/2000US6111972 Diffusing volume electroacoustic transducer
08/23/2000CN1264435A Molded aramid sheets
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
08/16/2000CN2392328Y Structure improvement of loudspeaker
08/16/2000CN1263685A An electroacoustic transducer and diaphragm for an electroacoustic transducer
08/15/2000US6104825 Planar magnetic transducer with distortion compensating diaphragm
08/10/2000WO2000047013A1 Vibration exciter for creating bending wave vibration
08/10/2000WO2000046786A2 A headphone comprising bending-wave loudspeakears
08/10/2000WO2000033613A3 Resonant bending wave panel-form loudspeaker
08/10/2000DE19903393A1 Kraftfahrzeug mit elektroakustischer Anlage Motor vehicle with electroacoustic system
08/09/2000CN1262857A Planar acoustic transducer
08/03/2000WO2000045616A1 Resonant panel-form loudspeakers
08/03/2000CA2360955A1 Resonant panel-form loudspeakers
08/02/2000EP1024053A2 Vehicle with electro-acoustic installation
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