Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555)
03/2003
03/20/2003US20030052355 Integrated sound transmitter and receiver, and corresponding method for making same
03/20/2003US20030051940 Loudspeaker drive units with flat surround
03/19/2003EP1078300B1 Projection Screen
03/18/2003US6535612 Electroacoustic transducer with diaphragm securing structure and method
03/18/2003US6532644 Method of making a piezoelectric speaker with a unitary body comprising a base section and dome shaped vibrating section
03/13/2003WO2002045460A3 Loudspeakers
03/13/2003US20030048919 Suspension for speaker
03/13/2003US20030048915 Communication device using bone conduction
03/13/2003US20030047377 Loudspeaker with improved mounting structure for the surround
03/13/2003DE10135414C1 Herstellung nicht-flacher Membranen für elektroakustische Wandler Production of non-flat membranes for electroacoustic transducers
03/12/2003CN1402589A Method for mfg. diamondoid composite diaphragm of loudspeaker
03/12/2003CN1402582A Surface acoustic wave device
03/06/2003WO2003019976A2 Acoustic device
03/06/2003WO2002043434A3 Electrodynamic bending moment driver
03/05/2003EP1078552B1 Device for dynamic excitation of panel loudspeakers
03/05/2003CN2539368Y Combined layer diaphragm with conductor
03/05/2003CN1401202A Planar loudspeaker
03/05/2003CN1400813A Electroacoustic converter
02/2003
02/27/2003WO2003001885A3 Multimedia and entertainment system for an automobile
02/26/2003CN1399496A Loudspeaker driver with flat wrapping layer
02/20/2003WO2003015462A2 Loudspeaker with a three-dimensional diaphragm
02/20/2003US20030035560 Acoustic device
02/20/2003US20030035557 Surface acoustic wave device
02/19/2003EP0996779B1 Molded aramid sheets
02/18/2003US6522760 Active acoustic devices
02/13/2003WO2003013187A1 Production of non-planar membranes for electroacoustic converters
02/13/2003WO2003013186A1 Planar loudspeaker
02/13/2003WO2003013182A1 Sound reproducing system using sound pressure
02/13/2003WO2003013180A2 Acoustic device
02/13/2003WO2002065451A9 Floor mat with voice-responsive display
02/13/2003WO2001084883A3 Planar speaker wiring layout
02/13/2003US20030031337 Loudspeaker with a three-dimensional diaphragm
02/13/2003US20030031331 Bending wave acoustic panel
02/13/2003CA2456032A1 Sound reproducing system using sound pressure
02/13/2003CA2455619A1 Production of shaped diaphragms for electroacoustic transducers
02/12/2003EP1283002A2 Loudspeaker having an acoustic panel and an electrical driver
02/12/2003CN1396752A Piezoelectric electroacoustic transducer
02/11/2003US6519349 Loudspeaker
02/11/2003US6519347 Panel-form loudspeakers
02/11/2003US6519346 Speaker apparatus and electronic apparatus having a speaker apparatus enclosed therein
02/06/2003WO2003010997A1 Flat speaker of full-face driving
02/06/2003DE19737461C2 Akustischer Wandler und elektrisches Gerät hiermit Acoustic transducer and electrical appliance hereby
02/05/2003EP1282337A2 Electroacoustic transducer
02/05/2003CN1395812A Method for manufacturing speaker
02/04/2003US6516077 Electroacoustic transducer
01/2003
01/30/2003WO2003009640A2 Electroacoustic transducer comprising a membrane with an improved pleats area
01/30/2003WO2003009635A2 Loudspeaker system
01/30/2003WO2003009219A2 Electronic article comprising loudspeaker & touch pad
01/30/2003US20030021436 Laminated aluminum polypropylene (LAP) multi-layers loudspeaker diaphragm
01/30/2003US20030021435 Electroacoustic transducer
01/30/2003US20030021431 Acoustic device
01/29/2003EP1279317A1 Membrane with embossed surface
01/29/2003CN1394457A Transducer
01/29/2003CN1394456A Speaker edge, method of foam-molding same, apparatus for foam-molding same, speaker edge foam-molding system, and speaker employing speaker edge
01/28/2003US6510919 Facing system for a flat panel radiator
01/23/2003WO2002043437A3 Wave field synthesys sound reproduction system using a distributed mode panel
01/23/2003US20030015942 Piezoelectric electroacoustic transducer
01/22/2003EP1278397A2 Loudspeaker drive unit with flat surround
01/22/2003EP0965245B1 Acoustic device
01/22/2003CN2532650Y Multi-point transmission plastics-steel vibration film
01/21/2003US6510232 Electroacoustic transducer having diaphragm with coil mounting projections and interposed stabilizing walls
01/21/2003US6508947 Method for fabricating a micro-electro-mechanical fluid ejector
01/16/2003WO2003005764A2 Portable acoustic device
01/16/2003DE20114680U1 Projection screen for moving or still pictures, comprises glass pane with sound generator forming glass loudspeaker
01/15/2003EP1276348A1 Method for forming carbon fiber layers for an acoustic diaphragm
01/15/2003CN1391779A Vibration actuator having elastic member between suspension plate and magnetic circuit device
01/09/2003WO2003001885A2 Multimedia and entertainment system for an automobile
01/09/2003US20030007659 Acoustic element
01/09/2003US20030007654 Acoustic device
01/09/2003US20030007653 Active acoustic devices
01/09/2003US20030007648 Virtual audio system and techniques
01/08/2003EP1274272A1 The application of invisible speaker and the method for fabricating the same
01/08/2003EP1273204A2 Acoustic transducer for broad-band loudspeakers or headphones
01/08/2003CN1390433A Electroacoustic transducer with diapharagm securing structure and method
01/08/2003CN1390431A Flat panel speaker
01/08/2003CN1390429A Loudspeaker
01/07/2003US6502662 Speaker having a hemispherical vibrator
01/03/2003WO2002025992A3 Loudspeaker driver
01/02/2003US20030003954 Business card with integrated paper cell phone
01/02/2003US20030003879 Speaker system, mobile terminal device, and electronic device
01/02/2003US20030002696 Electroacoustic transducer with field replaceable diaphragm carrying two interlaced coils, without manipulating any wires
01/02/2003US20030002695 Loudspeaker diaphragm
01/02/2003EP1271999A2 Speaker for a mobile device
01/02/2003EP1271998A2 Speaker system, mobile terminal device, and electronic device
01/02/2003EP1271997A2 Loudspeaker diaphragm
01/02/2003EP1269793A1 Single end planar magnetic speaker
01/01/2003CN1388727A Method for prodcing vibrating plate of loudspeaker and vibrating plate for loudspeaker
12/2002
12/27/2002WO2002104069A1 Diaphragm structure of light sound converter
12/27/2002WO2002104065A2 Mobile telephone
12/26/2002US20020196961 Panel-shaped loudspeaker
12/25/2002CN1387378A Method for making hidden loudspeaker and its application
12/25/2002CN1387352A Loudspeaker
12/19/2002WO2002102113A1 Speaker
12/19/2002US20020193137 Mobile telephone
12/19/2002US20020191808 Single-ended planar-magnetic speaker
12/19/2002US20020191807 Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
12/19/2002US20020191803 Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
12/17/2002US6494289 Device for dynamic excitation of panel loudspeakers
12/12/2002WO2002063922A3 Improved single-ended planar-magnetic speaker
12/11/2002EP1264511A1 Flat-panel loudspeaker
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