Matches 1 - 50 out of 72 1 2 >


Match Document Document Title
US20120039493 TRANSDUCER DEVICES AND METHODS FOR HEARING  
A device to transmit an audio signal to a user may comprise a mass, a piezoelectric transducer, and a support to support the mass and the piezoelectric transducer with the eardrum. The...
US20140270279 ACOUSTIC TRANSDUCERS WITH RELEASABLE DIAPHRAM  
The invention generally relates to acoustic transducers. In certain aspects, the acoustic transducer includes a diaphragm and an actuator releasably coupled to the diaphragm to cause movement of...
US20120099747 Audio Signal System  
An audio signal system is provided having, in one embodiment, a magnetostrictive core of varying shapes, sizes, and permeability. The core is wound with a wire, thereby forming an inductor for...
US20150326977 ACOUSTIC TRANSDUCERS WITH BEND LIMITING MEMBER  
Acoustic transducers may, in certain aspects, include a diaphragm and a piezoelectric actuator coupled to the diaphragm to cause movement of the diaphragm. In certain aspects, the transducer also...
US20160157020 ELECTROACOUSTIC TRANSDUCER  
In an embodiment, an electroacoustic transducer has a piezoelectric speaker 20, housing, support member 73, and elastically deformable adhesive layer 74. The piezoelectric speaker 20 has a...
US20150131822 Plane-Type Speaker and AV Apparatus  
A plane-type speaker where, on one of the main surfaces of an exciter film, there are placed piezoelectric films which are expanded and contracted by sound-releasing driving signals applied...
US20050129261 Electronic instrument  
It is designed to restrain vibration of a casing, efficiently drive a piezoelectric sounding body (such as a piezoelectric speaker) and flatten sound pressure characteristic within the electronic...
US20050100181 Parametric transducer having an emitter film  
A parametric transducer which includes a support member extending along an x-axis and a y-axis and having opposing front and back surfaces. The support member includes an array of parallel ridges...
US20150110309 ACOUSTIC TRANSDUCER AND PACKAGE MODULE INCLUDING THE SAME  
There is provided an acoustic transducer including an electrode substrate having a plurality of holes formed therein and having a first electrode thereon, a diaphragm disposed so as to face the...
US20070263887 VIBRATION AMPLIFICATION SYSTEM FOR PIEZOELECTRIC ACTUATORS AND DEVICES USING THE SAME  
A motion amplification apparatus taking the form of a reverse vibration absorber (RVA) comprises a piezoelectric diaphragm (22); a driving diaphragm (26) configured to serve as a driving member...
US20080260188 Acoustic Diaphragm and Speaker Having the Same  
Disclosed herein is an acoustic diaphragm for converting electrical signals into mechanical signals to produce sounds. The acoustic diaphragm comprises carbon nanotubes or graphite nanofibers as...
US20130308799 COMPACT HOUSING FOR PORTABLE ELECTRONIC DEVICE WITH INTERNAL SPEAKER  
Improved approaches for providing a speaker within a housing of a portable electronic device are disclosed. The housing of the portable electronic device can be compact, such as a low profile...
US20110044476 SYSTEM TO GENERATE ELECTRICAL SIGNALS FOR A LOUDSPEAKER  
The present disclosure describes an apparatus and a system for generating electrical signals for a loudspeaker. The loudspeaker may include one or more piezoelectric actuators configured to...
US20130322663 Transparent Acoustically Active Device  
The invention relates to an acoustically active device (1) comprising a substrate (2) that is transparent at least in a viewing region, comprising at least one first electrode (3) that lies on the...
US20160105749 SPEAKER WITH EMBEDDED PIEZOELECTRIC TRANSDUCER  
In one aspect, a speaker is provided having a coil and a diaphragm assembly coupled to the coil. The diaphragm assembly includes a piezo stiffener plate and a flexible membrane, the piezo...
US20100054507 FILM SPEAKER  
A film speaker is provided. The film speaker includes: a piezoelectric film oscillating by receiving a voltage corresponding to a sound signal from a sound signal supply unit; a plurality of...
US20080273720 Optimized piezo design for a mechanical-to-acoustical transducer  
The present invention relates to an acoustic transducer that coverts a mechanical motion into acoustical energy. The acoustic transducer includes a diaphragm and at least one support on at least a...
US20080130921 PIEZOELECTRIC ELECTROACOUSTIC TRANSDUCER  
A piezoelectric electroacoustic transducer capable of uniformly adhering the periphery of a piezoelectric diaphragm to an annular holding part of the holding body over the whole circumference is...
US20070189560 Sound generator module, sound generating structure, and electronic device utilizing the same  
A piezoelectric sound generator module is provided which has a reduced thickness and superior mountability while ensuring good sound pressure characteristics. A sound generating structure and an...
US20060140424 Piezoelectric panel speaker  
A piezoelectric panel speaker improved in frequency characteristics has a panel and a piezoelectric exciter for vibrating the panel. The exciter includes a casing and a piezoelectric exciter...
US20110176695 PIEZOELECTRIC PANEL SPEAKER AND OPTIMAL METHOD OF DESIGNING THE SAME  
A piezoelectric panel speaker and an optimal method of designing the same is disclosed. In the structure of the speaker, at least one piezoelectric plate attached at a surrounding frame supports a...
US20110110541 ELECTROMAGNETIC TRANSDUCTION ACOUSTIC BRIDGE AND RELATED METHODS  
An electromagnetic transduction acoustic bridge appliance may include an electro-acoustic transducer including a housing, and a coil carried by the housing, and a piezoelectric paste adjacent the...
US20080212807 Micromachined Acoustic Transducers  
The present invention relates to an acoustic transducer that includes one or more capsules, side walls and a backing plate. Each capsule contains a cavity formed by the side walls and a plurality...
US20150319514 ELECTROACTIVE POLYMER ACTUATED APERTURE  
An apparatus (200) is disclosed. The apparatus includes a rigid frame (206), an electroactive polymer film (204) defining an aperture (202) where the electroactive polymer film has a first and...
US20130094680 Portable Electronic Device with Magnetic Audio Interface and Audio Reproduction Accessory Therefor  
A portable electronic device includes an audio coder-decoder ‘CODEC’ capable of generating analog audio signals from digital audio representations, and includes a transmit coil capable of...
US20090097692 Screen Speaker System  
A screen speaker system (10) includes a screen (12) for projecting a video by a projector and drives the screen (12) to emit audio from the screen (12). The screen speaker system (10) further...
US20070058827 Loudspeaker  
A loudspeaker comprises a support which may be a portion of the housing of an electronic device and a diaphragm mounted on the support. A piezoelectric actuator arranged to bend on activation...
US20130243224 OSCILLATION DEVICE AND PORTABLE DEVICE  
An oscillation device includes a first oscillator (120), a second oscillator (112), and a control unit (50). The first oscillator (120) includes a first piezoelectric vibrator, and the second...
US20100086151 Piezoelectric Speaker  
The present invention relates to a piezoelectric speaker comprising a membrane, and an actuating layer comprising at least one piezoelectric element mounted to the membrane, which at least one...
US20110116664 MAGNETOSTRICTIVE ACTUATOR AND SPEAKER AND DEVICE USING SAID MAGNETOSTRICTIVE ACTUATOR  
A magnetostrictive actuator includes a magnetostrictive element extending along a central axis, a movable section displaced in response to a change of a shape of the magnetostrictive element, a...
US20090245546 Medium/Low Band Sound Reinforcement Film-Type Audio-Speaker Using Piezoelectric Film as Vibration Element  
A film-type audio-speaker is provided that uses a piezoelectric film as a vibration element to provide a reinforcement of the low to medium frequency band sound waves generated. The film-type...
US20170111745 ELECTRO-ACOUSTIC CONVERSION FILM AND DIGITAL SPEAKER  
Provided is an electro-acoustic conversion film that is suitably used for a digital speaker or the like, and that includes a polymer composite piezoelectric body formed by dispersing piezoelectric...
US20150189427 DEVICE AND METHOD FOR GENERATING DRIVING SIGNAL OF LOUDSPEAKER  
A method and device for generating a driving signal of a loudspeaker is provided. The method includes the steps of: outputting a driving voltage to a loudspeaker; measuring a current flowing...
US20120230524 PIEZOELECTRIC PANEL SPEAKER  
A piezoelectric panel speaker has a frame, piezoelectric actuators and a vibrating diaphragm set into the hollow assembly space of the frame. Two corresponding sides of the diaphragm are fixed...
US20050069158 Packaged piezoelectric exciter module  
A packaged piezoelectric exciter module comprises an insulating bracket, a positive conductive portion, a negative conductive portion and at least one exciter plate. The positive and negative...
US20090147972 HYBRID SPEAKER  
Provided is a hybrid speaker including a vibration diaphragm having a conductive coating layer formed by coating a conductive material for forming an electrode on a surface of a polymer film and...
US20050213785 Piezoelectric speaker, speaker system employing it, and electronic apparatus employing piezoelectric speaker  
A piezoelectric loudspeaker includes: a diaphragm; a first piezoelectric material provided in a first area of the diaphragm; and a second piezoelectric material provided in a second area of the...
US20140056449 STACKED PIEZOELECTRIC SPEAKER DEVICE  
A stacked piezoelectric speaker device having a structure where a piezoelectric ceramic plate and an internal electrode plate are stacked, in which an inactive dummy electrode is disposed around...
US20080144863 Microcap packaging of micromachined acoustic devices  
Transducer structures and methods of manufacture are described.
US20090208039 HYBRID ACTUATOR, LOUDSPEAKER AND SOUND OUTPUT METHOD  
A hybrid actuator (100A) includes a magnetostrictive actuator (110) having a magnetostrictive element (111), and a moving-coil actuator (130) including a movable portion (132) having an outer...
US20080317266 Contact Structure of a Film-Type Audio-Speaker  
The invention is a contact structure of a film-type audio-speaker of a structure appropriate for transmitting audio signal current to the entire audio-speaker surface without attenuating the...
US20070269073 Earphone with microphone  
The present invention to provide an earphone comprising a casing, a loudspeaker provided in the casing and adapted to amplify sound in response to receiving a voice source signal, a cap fixedly...
US20130223657 ELECTRONIC DEVICE  
An electronic device (100) includes a housing (110) and an oscillator (200) that is provided inside the housing (110), wherein the oscillator (200) includes a piezoelectric element (210) and a...
US20110110542 PIEZOELECTRIC EXCITER AND PIEZOELECTRIC EXCITER UNIT  
A piezoelectric exciter includes: a beam including a substrate and a piezoelectric element affixed to the substrate; a supporting portion that supports the beam; a terminal fixed to the supporting...
US20080025533 Loudspeaker  
A loudspeaker comprises the casing (22) of a portable electronic device, having mounted thereon a sound generating element (21) which may be a transparent cover for a display. The sound generating...
US20060072772 Piezoelectric loudspeaker  
A loudspeaker (8), including a piezoelectric disk (10) having a first diameter and a diaphragm disk (12) which is fixed to the second diameter greater than the first diameter. The loudspeaker...
US20160219373 Piezoelectric Speaker Driver  
A speaker apparatus includes a speaker assembly and a piezoelectric driver. The speaker assembly including a diaphragm and a motor. Application of a first electric current to the motor causes a...
US20150086050 Chip with a Micro-Electromechanical Structure and Covering Element, and a Method for the Production of Same  
A micro-electromechanical chip includes a substrate, a micro-electromechanical structure formed in the substrate, and a covering element that is positioned on a surface of the substrate and that...
US20050084122 Method for constructing a parametric transducer having an emitter film  
A method for constructing a parametric transducer. The method includes preparing a support member having opposing front and back surfaces, the support member extending along an x-axis and a...
US20130177183 VIBRATION SPEAKER  
A vibration speaker includes a top cover, a bottom cover, at least one transducer plate and at least one conductive connector. The top cover and the bottom cover define a space to accommodate the...

Matches 1 - 50 out of 72 1 2 >