Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555)
04/2006
04/26/2006CN1764327A Loudspeaker diaphragm
04/25/2006US7035425 Frequency response enhancements for electro-dynamic loudspeakers
04/25/2006US7035419 Anti-resonant structure for speakers
04/19/2006EP1647162A1 Loudspeaker and microphone based on the principle of the center of percussion
04/19/2006EP1123634A4 Parametric loudspeaker with electro-acoustical diaphragm transducer
04/19/2006CN2774063Y Suspended edge structure of loudspeaker
04/18/2006US7031488 Super tweeter
04/18/2006US7030522 Exciter for directly vibrating board
04/13/2006WO2006038176A1 Display device comprising a panel acoustic transducer, and transparent panel acoustic transducer
04/13/2006WO2006037586A1 Loud speaker arrangement in a motor vehicle
04/13/2006US20060078153 Speaker having spacer ring inside frame
04/13/2006DE202006002893U1 Magnetic device for loudspeaker system e.g. for underground stations, prevents adhesion of foreign bodies on loudspeaker or loudspeaker membrane
04/12/2006EP1646264A2 Loudspeaker apparatus
04/12/2006EP1645163A1 Diaphragms for loudspeaker drive units
04/12/2006EP1645161A1 Audio system
04/12/2006EP1525775B1 One-magnet rectangular transducer
04/12/2006CN1759635A Apparatus and method for producing sound
04/12/2006CN1759632A Bone conduction device
04/12/2006CN1758815A Loudspeaker apparatus
04/12/2006CN1251555C Edge body of loudspeaker forming method
04/11/2006US7027610 Loudspeaker
04/11/2006US7027609 Diaphragm for speakers
04/11/2006US7025170 Speaker
04/06/2006WO2006035413A1 Loudspeaker with an acoustic membrane
04/06/2006WO2006035412A1 Loudspeaker with an acoustic member
04/06/2006WO2005101899A3 Acoustic device & method of making acoustic device
04/06/2006US20060072248 Electro-dynamic exciter
04/06/2006US20060070796 Electroacoustic transducer comprising a memberane with a middle area comprising stiffening grooves
04/05/2006CN1756445A Ribbon type sound film of plane loudspeaker and its manufacturing method
04/05/2006CN1756442A Monomer sound film for producing diapason and tone quality variation using every part material change
04/05/2006CN1250043C Resonant panel-form loudspeakers
04/05/2006CN1250042C Loudspeaker
04/04/2006US7023066 Silicon microphone
03/2006
03/30/2006US20060068858 Slider mobile telephone comprising a bending wave loudspeaker
03/30/2006US20060065475 Acoustic device
03/29/2006EP1639858A2 Improvements to loudspeaker driver assemblies
03/29/2006CN1753573A Speaker diaphragm and method of forming the same
03/29/2006CN1248542C Loudspeaker
03/28/2006US7020302 Speaker, speaker module, and electronic equipment using the speaker module
03/23/2006WO2006030760A1 Speaker system
03/23/2006US20060062421 Diaphragm for loud speaker and loud speaker employing it
03/23/2006DE10334062B4 Elektroakustischer Wandler Electro-acoustic transducer
03/22/2006EP1446237A4 Manufacture having double sided features in a metal-containing web formed by etching
03/22/2006CN1247046C Loudspeaker
03/15/2006EP1635608A1 Sound detection mechanism
03/15/2006EP1634481A2 Display screen loudspeaker
03/09/2006US20060050923 Planar-magnetic speakers with secondary magnetic structure
03/09/2006US20060050904 Acoustic actuators
03/08/2006EP1247422B1 Regressively hinged spider
03/08/2006CN2764099Y Monomer structure
03/08/2006CN2764097Y Loudspeaker cone coated with metal layer
03/08/2006CN2764096Y Vibration piece of loudspeaker
03/07/2006US7010143 Rectangular panel-form loudspeaker and its radiating panel
03/07/2006US7010141 Speaker device
03/07/2006US7010140 Electroacoustic transducer
03/02/2006WO2006022119A1 Speaker
03/02/2006US20060042870 Speaker, speaker module and electronic apparatus using this
03/02/2006DE10023065B4 Ultraschallsensor für ein Kraftfahrzeug Ultrasound sensor for a motor vehicle
03/01/2006EP1629689A1 Flat panel speaker
03/01/2006EP1629688A1 Loudspeaker unit with an acoustic panel
02/2006
02/22/2006EP1627551A2 Apparatus and method for generating acoustic energy in a receiver assembly
02/22/2006EP1627550A2 Apparatus and method for generating acoustic energy in a receiver assembly
02/22/2006CN1243458C 扬声器驱动器 Speaker Driver
02/22/2006CN1243457C Composite loudspeaker diaphragm and its manufacture method
02/16/2006WO2006016294A1 Panel-acoustic transducer comprising an actuator for actuating a panel, and sound-generating and/or recording device
02/16/2006DE102004034882A1 Treiber Driver
02/16/2006DE102004031969A1 Weich-modifizierte Polyvinylacetalharze Soft-modified polyvinyl
02/15/2006CN1735283A Support folded ring with mutually reverse-wave on identical peripheral line
02/09/2006US20060029240 Loudspeakers
02/09/2006US20060028751 Drive mechanism
02/08/2006EP1623597A2 Mobile device for transmitting over the display acoustic vibrations to a surface
02/08/2006CN1732710A Loudspeaker
02/07/2006US6996246 Speaker apparatus
02/02/2006US20060023902 Compliant diaphragm for planar magnetic transducers
02/01/2006EP1621046A1 Loudspeaker system for virtual sound synthesis
02/01/2006CN1729715A Acoustic actuators
02/01/2006CN1240249C Sound producing device of speaker
01/2006
01/31/2006US6993146 Speaker having spacer ring inside frame
01/25/2006EP1618761A2 Direct radiation, pure beryllium acoustic transducer having a concave membrane, used for audio applications, especially for loudspeaker cabinets
01/25/2006CN2754304Y Improved structure of loudspeaker
01/24/2006US6988584 Speaker diaphragm edge and its manufacturing method
01/19/2006US20060013433 Audio speaker cone appartus and method of manufacture
01/19/2006DE102004032223A1 Audiovisuelle Anordnung Audio-visual arrangement
01/19/2006DE102004031971A1 Verfahren zur Herstellung von Polyvinylacetalen A process for the preparation of polyvinyl acetals
01/19/2006DE102004028664A1 Schwingungskörper eines Lautsprechersystems Body vibration of a speaker system
01/18/2006EP1617703A2 Speaker apparatus using display window
01/18/2006EP1617701A1 Equalizable active electroacoustic device for panels, and method of converting the panels and assembling the devices
01/18/2006EP1616457A1 Multi-layered membranes consisting of a plurality of materials, for the loudspeaker of a high fidelity loudspeaker cabinet
01/18/2006EP1616456A1 System for the projection of cinematographic works or digitial works with sound
01/18/2006EP1116413B1 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
01/18/2006CN1723737A Speaker and device using the same
01/18/2006CN1723736A Slider mobile telephone comprising a bending wave loudspeaker
01/18/2006CN1723735A Speaker, speaker module and electronic apparatus using this
01/12/2006WO2006003367A1 Piezoelectric inertial transducer
01/12/2006US20060008099 Acoustic device
01/12/2006US20060006483 Silicon microphone
01/12/2006DE102004011145B4 Microphone e.g. semiconductor-condenser microphone, for use in mobile phone, has membrane structure with boundary region, which is not movable due to pressure, on which carrier is attached, where region and opposing structure have recesses
01/11/2006EP1615467A1 Loudspeaker
01/11/2006EP1615466A2 Acoustic diaphragm
01/11/2006CN2751498Y Ultra-thin loudspeaker
1 ... 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ... 66