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Matches 201 - 250 out of 1,365

Document Document Title
WO2002043434A3
A bending moment driver, suitable for the boundary operation of planar diaphragm loudspeakers, comprises an oscillatory coil wound along the boundary edge surface of the resonator plate and a permanent magnet system arranged at a small s...  
WO2003001885A3
A multimedia and entertainment system (100) for an automobile (16) is disclosed to include a plurality of loudspeakers (32) located and distributed throughout the interior (Fig. 1) passenger compartment of the automobile (16). Loudspeake...  
WO2001084883A3
Trace runs for Planar Line Source Transducers (or speakers) are separated into multiple trace circuits which are electrically isolated but occupy the same area on the planar film. The separate trace runs are then driven with different el...  
WO/2003/001885A2
A multimedia and entertainment system (100) for an automobile (16) is disclosed to include a plurality of loudspeakers (32) located and distributed throughout the interior (Fig. 1) passenger compartment of the automobile (16). Loudspeake...  
WO/2002/102112A2
The armature of an electromagnetic transducer, extending through the polarizing flux between opposing permanent magnet pole faces, is snubbed to limit its shock-induced excursions normal to the directions of its extent and of the flux fi...  
WO2002043435A3
The invention relates to an electromagnetic driver comprising a soft magnetic core in the form of an E with three legs and a back, an alternating field driver, magnetically coupled to the soft magnetic core, for generating an alternating...  
WO2001091517A3
The present invention relates to an assembly comprising an electrical element, such as a coil, and especially to an assembly more easily assembled. Assemblies of this type are used for receivers for hearing aids or sound generators for e...  
WO2002015640A3
The disclosure relates to electroacoustic receivers of the type which incorporate a reed armature. Thus, a receiver comprises a coil, magnets, pole pieces and a reed armature which passes through a central tunnel defined by the coil. A c...  
WO2000027166A9
A transducer which can be integrated with a battery used in a hearing aid. The transducer can be a microphone or a loudspeaker integrated with a battery used in a hearing aid. The microphone transducer can include an electret microphone,...  
WO/2002/063921A2
A balanced receiver providing significantly reduced vibrationis disclosed. The balanced receiver comprises a closed loop operably attached between an armature and a diaphragm. The effective moving mass of the diaphragm is designed to mat...  
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/2002/054824A1
A bone conduction speaker in which sound quality is improved sufficiently by suppressing unnecessary vibration of a vibration system and preventing generation of abnormal sound due to abnormal resonance, comprising a bone conduction spea...  
WO/2002/043434A2
A bending moment driver, suitable for the boundary operation of planar diaphragm loudspeakers, comprises an oscillatory coil wound along the boundary edge surface of the resonator plate and a permanent magnet system arranged at a small s...  
WO/2002/043435A2
The invention relates to an electromagnetic driver comprising a soft magnetic core in the form of an E with three legs and a back, an alternating field driver, magnetically coupled to the soft magnetic core, for generating an alternating...  
WO/2002/039781A2
According to a first aspect of the invention there is provided an inertial exciter (40) for an acoustic radiator (42), the exciter comprising a massive member (44); a coupling member (46, 56) adapted for attachement to the acoustic radia...  
WO2002003746A3
A microphone assembly for mounting in an electronic communication device, and wherein the microphone assembly comprises one or more sound inlet port(s) with channels (7), and one or more microphone(s) inside a housing (1). One or more co...  
WO/2002/025989A1
The present invention relates to a subminiature bone conduction speaker which vibrates bones around human skull directly and stimulates auditory nerves through bone conduction in order to help sound to be heard. Vibrations are transmitte...  
WO2001052594A3
A balanced receiver providing significantly reduced vibration is disclosed. The balanced receiver comprises a closed loop operably attached between an armature and a diaphragm. The effective moving mass of the diaphragm is designed to ma...  
WO/2002/019759A1
A bone conduction vibrator which can increase an output efficiency and achieve a wide-band frequency is disclosed. The bone conduction vibrator comprises a frame which is formed in a cylindrical shape and has opened upper and lower ends;...  
WO/2002/015640A2
The disclosure relates to electroacoustic receivers of the type which incorporate a reed armature. Thus, a receiver comprises a coil, magnets, pole pieces and a reed armature which passes through a central tunnel defined by the coil. A c...  
WO2001026413A3
A transducer comprising a pair of spaced magnets at least partially forming a tunnel having a central axis. A coil having a first and a second side wall and an upper and a lower wall at east partially forms the tunnel. A reed having a ce...  
WO/2002/003746A2
A microphone assembly for mounting in an electronic communication device, and wherein the microphone assembly comprises one or more sound inlet port(s) with channels (7), and one or more microphone(s) inside a housing (1). One or more co...  
WO2001056329A3
In an electroacoustic transducer (1) having a magnet system (8) and having a diaphragm holder (2) for holding a diaphragm (17) and having a moving coil (115) connected to the diaphragm (17), the moving coil (15) has a hollow cylindrical ...  
WO/2001/091517A2
The present invention relates to an assembly comprising an electrical element, such as a coil, and especially to an assembly more easily assembled. Assemblies of this type are used for receivers for hearing aids or sound generators for e...  
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/2001/084883A2
Trace runs for Planar Line Source Transducers (or speakers) are separated into multiple trace circuits which are electrically isolated but occupy the same area on the planar film. The separate trace runs are then driven with different el...  
WO/2001/056329A2
In an electroacoustic transducer (1) having a magnet system (8) and having a diaphragm holder (2) for holding a diaphragm (17) and having a moving coil (115) connected to the diaphragm (17), the moving coil (15) has a hollow cylindrical ...  
WO/2001/052594A2
A balanced receiver providing significantly reduced vibration is disclosed. The balanced receiver comprises a closed loop operably attached between an armature and a diaphragm. The effective moving mass of the diaphragm is designed to ma...  
WO2000074435A3
Electroacoustic transducer comprising a case accommodating an armature (16) with at least two armature legs, a coil (19) with an air gap, which is fitted around one armature leg, a magnet/pole piece assembly (17, 18) with an air gap, whi...  
WO/2001/026413A2
A transducer comprising a pair of spaced magnets at least partially forming a tunnel having a central axis. A coil having a first and a second side wall and an upper and a lower wall at east partially forms the tunnel. A reed having a ce...  
WO2000070905A3
An electromagnetic transducer according to the present invention includes: a first diaphragm disposed so as to be capable of vibration; a second diaphragm disposed in a central portion of the first diaphragm, the second diaphragm being m...  
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/2000/074437A1
A microphone for a hearing aid comprises a housing with entrance means for letting pass sound waves into the housing, transducer means for converting the sound waves into an electrical signal, amplifier means for amplifying this electric...  
WO/2000/074435A2
Electroacoustic transducer comprising a case accommodating an armature (16) with at least two armature legs, a coil (19) with an air gap, which is fitted around one armature leg, a magnet/pole piece assembly (17, 18) with an air gap, whi...  
WO/2000/070905A2
An electromagnetic transducer according to the present invention includes: a first diaphragm disposed so as to be capable of vibration; a second diaphragm disposed in a central portion of the first diaphragm, the second diaphragm being m...  
WO2000027166A3
A transducer which can be integrated with a battery used in a hearing aid. The transducer can be a microphone or a loudspeaker integrated with a battery used in a hearing aid. The microphone transducer can include an electret microphone,...  
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/2000/032013A1
Disclosed is an electric-acoustic transducer comprising at least one fixed coil (124) adapted to generate alternating magnetic field upon externally receiving an electrical drive signal, a frame (102) having a recessed structure for cent...  
WO/2000/027166A2
A transducer which can be integrated with a battery used in a hearing aid. The transducer can be a microphone or a loudspeaker integrated with a battery used in a hearing aid. The microphone transducer can include an electret microphone,...  
WO/1999/035883A1
A thin loudspeaker is provided that produces a superior frequency response and a diffuse acoustical pattern using magnetic drivers, acoustical plates, or a combination of magnetic drivers and acoustical plates. The invention contains a s...  
WO/1999/031932A1
A taut armature reciprocating impulse transducer (100) which typically provides a non-linear hardening spring response is adapted to provide a non-linear softening spring response by the addition of magnetic damping elements (106). Two o...  
WO/1999/022882A1
A high quality electric-mechanical-acoustic transducer used mainly in mobile phones which is not damaged and degraded in performance by drop and impact. The transducer comprises at least one suspension (14) that supports a movable sectio...  
WO/1999/003305A1
The present invention relates to a hearing aid receiver (10) having a coil (12) with a tunnel (14) therethrough, a magnetic structure (16) having a central magnetic gap (18), an armature (20), and a fluid (30, 32) with a viscosity greate...  
WO1998034320A3  
WO/1998/035530A1
A microphone having a reduced high frequency response is disclosed. The microphone comprises a housing (12), a diaphragm defining a front cavity and a back cavity, and an inlet port (20) acoustically communicating to the front cavity. Th...  
WO/1998/034320A2
An electro-dynamic inertial vibration exciter (1) for exciting a member (2) having capability to sustain and propagate input vibrational energy comprising a motor coil assembly (3, 4) having a coil (3) rigidly fixed to a tubular coil for...  
WO/1998/018293A1
A three-axis seismic vibrator (10) is provide which imparts compressional and shear wear seismic vibrations, either sequentially or simultaneously, into the Earth's surface. The seismic vibrator includes an earth-contacting baseplate (12...  
WO/1997/004618A1
An electronic driver for use with a linear and non-linear transducer includes a voltage controlled oscillator (1630) which generates an output signal (1603) in response to a frequency control signal (1625); a transducer driver (1604) whi...  
WO/1994/010817A1
This invention relates to electroacoustic transducers of the type which incorporate a reed armature. Thus a transducer (10) comprises a coil (12), magnets (13, 14), pole pieces (15, 16) and a reed armature (17), which passes through a ce...  

Matches 201 - 250 out of 1,365