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Patent Searching and Data


Matches 551 - 600 out of 6,658

Document Document Title
WO/2002/082855A2
A loudspeaker (104) comprising a box-form structure made from stiff lightweight sheet material to define a plurality of faces (34), at least one face (34) of the structure forming a panel-form bending wave acoustic radiator and having an...  
WO2002017677A3
The invention refers to an electrostatic electroacoustical transducer (1) comprising: an electrically conductive fixed electrode plate (5), having an active surface (8) with recesses (7); a conductive or semiconductive flexible diaphragm...  
WO/2002/065813A2
In an electroacoustic transducer (21) with a stationary transducer part (23) and with a membrane configuration (17) comprising a membrane (15) and a handling ring (1) for the membrane (15) connected with the membrane (15), the membrane c...  
WO/2002/063606A1
The invention proposes a method of manufacturing an ultrasound transducer (60), which method includes a step of forming a plate in the form of a disc of a composite piezoelectric material into a hollow spherical cap, characterized in tha...  
WO2001087008A3
An armature for a receiver comprising a first and a second leg portion each having a thickness and a width and connected to each other, and a connection portion in communication with the first and second leg portions. The connection port...  
WO/2002/052544A2
According to various aspects of the invention, a transducer is manufactured by providing a substrate assembly, making major element cuts in the substrate assembly in a first direction, making minor element cuts in the substrate assembly ...  
WO/2002/049775A1
.The invention concerns a method for making an acoustic probe comprising single-unit piezoelectric transducers. The method comprising an original step, which consists in producing a ground plane consisting of a dielectric flexible film, ...  
WO/2002/049393A1
The present invention relates to the ultra/thin type condenser micriphone assembly and method for assembling the same. The presentinvention unifies the microphone assembling process into a process of accumulating independent and individu...  
WO/2002/041667A1
A method for manufacturing a speaker comprising a step for forming diaphragm parts and positioning parts continuously on a stripe resin film, a step for arranging a frame or a protector on an upper or lower die and aligning the positioni...  
WO/2002/035883A1
A speaker edge which is obtained by mechanically mixing a gas with a thermosetting composition comprising as major components a urethane prepolymer and a latent hardener which is an inactivated solid amine, injecting the mixture into a m...  
WO2000074915A3  
WO/2002/032187A1
A diaphragm supporting frame member (1) of paper is formed by a paper making using liquid paper material as a raw material, and a center hole for a voice coil and an air pressure release hole (1a) for discharging into the outside the air...  
WO/2002/030157A2
A preferred method includes operations to generate a watertight digital model of a hearing−aid shell by thickening a three−dimensional digital model of a shell surface in a manner that eliminates self−intersections and results in a...  
WO/2002/017677A2
The invention refers to an electrostatic electroacoustical transducer (1) comprising: an electrically conductive fixed electrode plate (5), having an active surface (8) with recesses (7); a conductive or semiconductive flexible diaphragm...  
WO/2002/015636A2
Multiple embodiments of solid state micro-structures, such as a condenser microphone, are disclosed. According to one embodiment, the transducer a fixed perforated member, a freely movable diaphragm spaced from the perforated member, a s...  
WO/2001/095667A1
The invention relates to an electromechanical transducer that is easy and inexpensive to produce. The inventive transducer comprises stacked piezoelectric elements (1, 3, 5, 7, 9, 11) between which contact electrodes (G, S, E) are interp...  
WO/2001/087008A2
An armature for a receiver comprising a first and a second leg portion each having a thickness and a width and connected to each other, and a connection portion in communication with the first and second leg portions. The connection port...  
WO/2001/068273A1
The invention concerns unidirectional acoustic probe, comprising an efficient interconnection array, and a method for making such a probe. Said unidirectional probe comprises linear piezoelectric transducers (TP¿i?) at the surface of a ...  
WO/2001/046943A1
An electroacoustic transducer includes a case (1) integrated with a frame (2) on its bottom, and a thermal/ultraviolet-curing adhesive layer (6a) is formed on the frame (2). A magnet (5) is attached to the frame (2) with the adhesive. Th...  
WO/2001/045461A1
The entire strength is averagely improved, no checker pattern is produced, and uniform entire coloring is realized. A cloth for a loudspeaker diaphragm is made a thread of a plurality of kinds of fibers, at least one of which is a PBO (p...  
WO/2001/042742A1
The invention concerns a transmitter and receiver comprising several transducers arranged opposite an opening of a housing. Each transducer comprises a deformable semiconductor membrane (MB) designed to be run through by an electric curr...  
WO/2001/041501A1
A diaphragm of a piezoelectric sound generator for use in a small-sized energy-saving piezoelectric speaker of improved quality. A diaphragm (12) that supports a piezoelectric element (10) and vibrates with it consists of a composite mat...  
WO2001005189A3
A loudspeaker is made of a panel (1) supporting bending waves and a transducer (3) covering a substantial portion of the panel surface. At least one constraint, for example a clamp or a mass, is fixed to the panel. Each constraint reduce...  
WO2000072631A3
The present invention provides a transducer and a method of making the same. The transducer is comprised of a plurality of transducer cells (200A, 200B, 200C), and conductive interconnects (220, 230) between the cells. Each transducer ce...  
WO/2001/028760A1
A method of manufacturing a composite panel (30), e.g. for use as an acoustic radiator of a loudspeaker. The panel (30) comprising a core (32) sandwiched between two skins (34, 36), each skin being bonded to the core by a combination of ...  
WO2000070910A3
A method of making a structural or semi-structural object e.g. a car interior trim panel, comprising an integral bending-wave panel loudspeaker, characterised by thermoforming the object from a thermoformable panel material.  
WO/2001/022776A1
A micromachined acoustic transducer (100) comprising a parylene diaphragm (124) piezoelectric transducer. The parylene diaphragm has far lower stiffness than silicon nitride. The method for fabricating the parylene diaphragm acoustic tra...  
WO/2001/019137A1
A method and apparatus for high speed and uniform manufacture and assembly of acoustical diaphragms having electrical conductor circuits (21) applied thereto to frame components (14) used with acoustic transducers wherein a web of diaphr...  
WO2000070908A3
A loudspeaker comprising a bending-wave panel, an enclosure in which the bending-wave panel is mounted to enclose one face of the panel, a compliant suspension between the panel and the enclosure by which the panel is supported in the en...  
WO/2001/005189A2
A loudspeaker is made of a panel (1) supporting bending waves and a transducer (3) covering a substantial portion of the panel surface. At least one constraint, for example a clamp or a mass, is fixed to the panel. Each constraint reduce...  
WO2000069214A3
A method of making a loudspeaker comprising attaching a vibration exciter to a bending-wave panel by bringing the vibration exciter and the panel into contact over an area, and applying ultrasound energy to the contact area.  
WO2000059262A3
The present invention consists of an improved distortion reduction cap and center pole speaker assembly and an improved method of coupling the cap to a speaker center pole. The cap includes an axial flare which is stretched over and pres...  
WO/2000/074915A2
The aim of the invention is to increase hearing aid packing density. To this end, at least two elements that are to be assembled on the hearing aid and that are produced from different materials are produced by two- or multicomponent inj...  
WO/2000/076269A1
The invention relates to a method for producing a membrane for electroacoustic transducers, comprising a core layer (3) consisting of poly(meth)acrylimide foam and at least one cover layer (4). The cover layer (4) is laminated with the c...  
WO/2000/072631A2
The present invention provides a transducer and a method of making the same. The transducer is comprised of a plurality of transducer cells (200A, 200B, 200C), and conductive interconnects (220, 230) between the cells. Each transducer ce...  
WO/2000/070910A2
A method of making a structural or semi-structural object e.g. a car interior trim panel, comprising an integral bending-wave panel loudspeaker, characterised by thermoforming the object from a thermoformable panel material.  
WO/2000/070908A2
A loudspeaker comprising a bending-wave panel, an enclosure in which the bending-wave panel is mounted to enclose one face of the panel, a compliant suspension between the panel and the enclosure by which the panel is supported in the en...  
WO/2000/069214A2
A method of making a loudspeaker comprising attaching a vibration exciter to a bending-wave panel by bringing the vibration exciter and the panel into contact over an area, and applying ultrasound energy to the contact area.  
WO/2000/060902A1
A method for manufacturing an electroacoustic transducer for, for instance, a hearing aid, with a diaphragm (5) arranged in a housing (2). According to the invention, the diaphragm is attached onto a film or punched from a sheet of mater...  
WO/2000/059262A2
The present invention consists of an improved distortion reduction cap and center pole speaker assembly and an improved method of coupling the cap to a speaker center pole. The cap includes an axial flare which is stretched over and pres...  
WO/2000/058073A1
An arrangement (1) for and a method of manufacturing a plastic diaphragm (2) use a deep-drawing station (20) which has a deep-drawing die (33) of a sintered material, air present between the front surface (34) of the deep-drawing die (33...  
WO/2000/054555A1
A speaker edge having a high strength, a less variation of f¿0?, a high waterproofness, and a small amplitude of resonance, easily moldable, and easily produced integrally with the corn body. The speaker edge is molded by inputting a ma...  
WO/2000/045616A1
A method of making a vehicle interior trim panel having at least one integral resonant bending wave loudspeaker panel, comprising designing the trim panel to comprise at least one panel area capable of and intended to operate as a resona...  
WO/2000/009440A1
The invention relates to a micromechanical sensor and to a corresponding production method, comprising the following steps: a) preparing a doped semiconductor wafer (4); b) applying an epitaxial layer (1) that is doped in such a way that...  
WO2000003560A3
The recess is produced in a material layer (S) by creating at least a first (S1) and a second structure (S2) in various steps. Said layers define each other laterally and extend to the bottom of the recess. The first structure (S1) and t...  
WO/2000/007409A1
A method of making an acoustic device in the form of a loudspeaker drive unit having a resonant panel-form member adapted to provide an acoustic output when excited with bending wave energy, comprising forming a resilient suspension for ...  
WO/2000/005001A1
An ultrasonic transducer and method of making the same is disclosed comprising applying a sacrificial material to a substrate (20), applying a polymer coating (24) over at least part of the sacrificial layer and the substrate (20), and r...  
WO/2000/003560A2
The recess is produced in a material layer (S) by creating at least a first (S1) and a second structure (S2) in various steps. Said layers define each other laterally and extend to the bottom of the recess. The first structure (S1) and t...  
WO/1999/065277A1
A method of manufacturing a transducer of the type having a diaphragm (11) with a predetermined tension. After the transducer has been manufactured with its basic structure the diaphragm is adjusted to have a predetermined tension, which...  
WO/1999/065272A1
A method of producing a speaker diaphragm used in a variety of acoustic devices and a speaker diaphragm formed by this method and a speaker using this; specifically a method of producing a speaker diaphragm capable of preventing the defo...  

Matches 551 - 600 out of 6,658