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)
10/2005
10/20/2005US20050230006 Method for manufacturing ceramic structure
10/20/2005DE20321033U1 Membrane driver for a loudspeaker, especially for automobile and aircraft sound systems, has a larger coil to take the magnet system within it and stabilize membrane vibration
10/19/2005EP1586219A1 Loudspeaker
10/19/2005EP0872158B1 Piezoelectric transducers
10/19/2005CN2735697Y Piston type plane loudspeaker and loudspeaker panel structure thereof
10/19/2005CN1685760A Drive mechanism
10/18/2005US6956957 Loudspeakers
10/18/2005US6956953 Electroacoustic transducer with field replaceable diaphragm carrying two interlaced coils, without manipulating any wires
10/18/2005US6956492 Display signs comprising a flat panel loudspeaker
10/18/2005US6955241 Speaker unit for low frequency reproduction
10/13/2005US20050226459 Vibrating plate for speaker and method of fabricating the same
10/13/2005US20050226456 Loudspeaker edge
10/13/2005US20050226455 Display comprising and integrated loudspeaker and method for recognizing the touching of the display
10/13/2005US20050226445 Transducer assembly and loudspeaker including rheological material
10/13/2005US20050224281 Speaker assembly
10/13/2005DE10140386B4 Lautsprecher Speaker
10/13/2005DE10130910B4 Vibrationslautsprecher Vibration speaker
10/12/2005CN2733798Y Belt type loudspeaker
10/06/2005US20050221106 Membranes made of cast polyarylate film
10/06/2005DE10321980B4 Vorrichtung und Verfahren zum Berechnen eines diskreten Werts einer Komponente in einem Lautsprechersignal Device and method for calculating a discrete value of a component in a loudspeaker signal
10/05/2005CN1679373A Dynamic micro speaker with dual suspension
10/05/2005CN1678945A Liquid crystal display device having sound output function and the like and electronic device using the same
10/05/2005CN1222194C Circulate piece for loudspeaker
09/2005
09/29/2005WO2005091673A1 Multi-function type oscillation actuator and mobile terminal device
09/29/2005WO2005053355A3 Carry case
09/29/2005US20050211499 Loudspeaker diaphragm
09/29/2005US20050211402 Acoustic paper diaphragm and acoustic transducer apparatus
09/28/2005CN1675960A Loudspeaker with inverted cone
09/28/2005CN1675846A Subminiature bone vibrating speaker using the diaphragm and mobile phone thereby
09/22/2005WO2005089014A1 Loudspeakers
09/22/2005WO2005089013A1 Speaker
09/22/2005US20050207612 Loudspeaker with a first and a second diaphragm body
09/22/2005US20050207608 Gasket for speaker
09/21/2005EP1576851A2 Acoustic actuators
09/21/2005EP1576849A1 Electroacoustic transducer comprising a membrane with a middle area comprising stiffening grooves
09/21/2005EP1299940A4 Mechanical-to-acoustical transformer and multi-media flat film speaker
09/21/2005CN1672461A One-magnet rectangular transducer
09/21/2005CN1671249A Acoustic paper diaphragm and acoustic transducer apparatus
09/21/2005CN1671246A Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
09/15/2005WO2005086531A1 Loudspeaker
09/15/2005WO2005086530A1 Speaker
09/15/2005WO2005086529A1 Speaker and method of manufacturing the same
09/15/2005WO2005086528A1 Method of manufacturing film-speaker using piezoelectric film and sound equipment with the same
09/15/2005WO2005085508A1 Woven or knitted fabric, diaphragm for speaker, and speaker
09/15/2005US20050201589 Thin speaker and method of manufacturing the speaker
09/15/2005US20050201588 Speaker
09/13/2005US6944312 Lay-in ceiling speaker
09/13/2005US6944310 Speaker apparatus
09/09/2005WO2005084076A1 Method of and device for modifying the properties of a membrane for an electroacoustic transducer
09/09/2005WO2005083550A2 Display device having sound-generating means
09/08/2005US20050194203 Planar speaker edge
09/08/2005US20050194202 Speaker insulator and a speaker apparatus
09/08/2005DE102004007020A1 Loudspeaker membrane has reinforced double walls to contain gas under pressure, which confers required form
09/07/2005EP1571876A1 Speaker and device using the same
09/07/2005EP1570706A1 Slider mobile telephone comprising a bending wave loudspeaker
09/07/2005CN1666569A Loudspeaker diaphragm systems
09/07/2005CN1666567A Panel-shaped loudspeaker
09/07/2005CN1665865A Membranes made of cast polyarylate film
09/07/2005CN1218609C Electroacoustic transducer having diaphragm with coil mounting projections and interposed stabilizing walls
09/01/2005WO2005081580A1 Multi-way plate speaker system
08/2005
08/31/2005CN1663322A Electro-dynamic planar loudspeakers
08/31/2005CN1662098A Long round loudspeakers
08/30/2005US6937987 Character information receiving apparatus
08/25/2005WO2005079110A1 Speaker, speaker-use diaphragm, dust cap, production methods and production devices for them
08/25/2005US20050185817 Tangential stress reduction system in a loudspeaker suspension
08/25/2005US20050184607 Exciter for directly vibrating board
08/24/2005EP1120007B1 Loudspeakers
08/24/2005CN1658707A Exciter for directly vibrating board
08/23/2005US6934402 Planar-magnetic speakers with secondary magnetic structure
08/23/2005US6934399 Piston-type panel-form loudspeaker
08/18/2005US20050180588 Transducer with deformable corner
08/18/2005US20050180587 Equalizable active electroacoustic device for panels, and method of converting the panels and assembling the devices
08/18/2005US20050178516 speaker components (e.g., diaphragm) which have been subjected to fire retardation treatments in a conventional art are a product of paper making of fire retardant fiber such as cellulose phosphate fiber
08/17/2005EP1563711A1 An apparatus for energy transfer in a balanced receiver assembly and manufacturing method thereof
08/17/2005EP1563710A1 An apparatus for creating acoustic energy in a balanced receiver assembly and manufacturing method thereof
08/17/2005EP1563709A1 Dynamic micro speaker with dual suspension
08/17/2005CN1655648A Speaker component, method of manufacturing the same and speaker apparatus including the same
08/17/2005CN1655647A Vibrating board and its producing method, and speaker
08/17/2005CN1655645A Loudspeaker and apparatus using loudspeaker
08/16/2005US6929092 Speaker diaphragm
08/16/2005US6929091 Planar diaphragm loudspeaker and related methods
08/11/2005US20050175212 Speaker apparatus
08/11/2005US20050175211 Gasket and speaker apparatus
08/11/2005US20050175205 Oval speaker apparatus and method of manufacturing the same
08/11/2005DE202004020473U1 Oscillatory/vibratory body for panel-form loudspeaker system, uses part-zone of coupling region for coupling-in differentiated signal component
08/11/2005DE10361393B3 Electroacoustic transducer, especially for use in motor vehicle, has circuit board acting as membrane; oscillations generated by exciter can be transferred to circuit board whereby system of circuit board and exciter forms flat loudspeaker
08/11/2005DE102005001354A1 Loudspeaker membrane comprising composite paper material and an elastic foamed plastic material, e.g. in polyurethane foam useful for conversion of electrical energy fluctuations into acoustic energy and having decreased weight
08/10/2005CN2717154Y Improved arrangement for loudspeaker drum paper
08/10/2005CN2717153Y Loudspeaker drum paper with angle
08/10/2005CN2717152Y Loudspeaker drum paper arrangement
08/10/2005CN1653849A Transducer
08/10/2005CN1652635A 扬声器设备 Speaker Equipment
08/10/2005CN1652634A Loudspeaker
08/04/2005WO2005072007A1 Diaphragm for loudspeaker and loudspeaker
08/04/2005WO2005072006A1 Loudspeaker
08/04/2005US20050168111 Transducer
08/04/2005CA2554280A1 Loudspeaker
08/03/2005EP1560459A2 Device for the protection of the membrane of loudspeakers
08/03/2005EP1060637B1 Acoustic element
08/03/2005EP1055351B1 Acoustic device comprising a panel member relying on bending wave action
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