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Class 381/396 - Electromagnetic (e.g., dyynamic)


Subclass of Class 381 - Electrical audio signal processing systems and devices
Definition: Subject matter wherein an information varied electrical
No. of applications: 204
Last issue date: 02/09/2012


1            
Application No.Application TitleIssue Date
20120033834Apparatus With Directivity Pattern
A loudspeaker is described. The loudspeaker includes two or more segmentations of a planar radiator. Each of the segmentations has an associated frequency dependent velocity magnitude and phase with substantially uniform surface pressure. The two or more segmentations p...
02/09/2012
20120014555ELECTROMAGNETICALLY-COUNTERED SPEAKER SYSTEMS AND METHODS
Electromagnetically-countered speaker systems for generating acoustic sounds according to dynamic signals supplied thereto while minimizing irradiation of harmful electromagnetic waves therefrom which do not include speaker magnets but include driver members for generat...
01/19/2012
20110311089ACOUSTIC CONVERSION DEVICE AND ACOUSTIC CONVERSION DEVICE ASSEMBLY METHOD
An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current i...
12/22/2011
20110311082CAPACITIVE ELECTRO-ACOUSTIC TRANSDUCTION SYSTEM AND CAPACITIVE ELECTRO-ACOUSTIC TRANSDUCER THEREOF
A capacitive electro-acoustic transducer includes a pair of input terminals, a pair of output terminals, an electrode plate, and a diaphragm. The pair of input terminals receives an audio signal, and the pair of output terminals outputs the audio signal, wherein at leas...
12/22/2011
20110255732MULTIFUNCTIONAL MICRO SPEAKER
A multifunctional micro speaker including a frame; a diaphragm having an outer circumferential portion fixed to the frame; a voice coil fixed to a lower surface of the diaphragm; a first suspension having an outer circumferential portion fixed to the frame and having a ...
10/20/2011
20110255731Transducer for Stapedius Monitoring
An electro-magnetic transducer assembly includes a first component. The first component includes at least one magnet, and optionally a first attachment mechanism for attaching the first component to a vibrating structure. A coil assembly includes a second attachment mec...
10/20/2011
20110206230Inertial vibration exciter
An inertial vibration exciter having a magnet assembly defining an annular gap, a coil assembly disposed in the annular gap, suspension means mounting the coil assembly for reciprocating movement in the gap, means coupling the coil assembly to a member to be vibrated, a...
08/25/2011
20110194723Magnetic Diaphragm and Manufacturing Method thereof
An exemplary magnetic diaphragm is applied to an electro-acoustic transducer. The magnetic diaphragm has a base formed with a magnetic layer thereon by a film deposition method. The base with the magnetic layer thus has magnetism to interference with a magnetic circuit ...
08/11/2011
20110142277Accoustic device
An acoustic device intended to operate pistonically and in bending comprising a panel-form acoustic radiator, a magnetic drive system including a voice coil on a tubular bobbin, the bobbin being directly coupled to the radiator to drive the radiator directly; and a coup...
06/16/2011
20110051985PIEZOELECTRIC MICRO SPEAKER HAVING PISTON DIAPHRAGM AND METHOD OF MANUFACTURING THE SAME
Provided are a piezoelectric micro speaker having a piston diaphragm and a method of manufacturing the piezoelectric micro speaker. The piezoelectric micro speaker includes: a substrate having a cavity formed therein; a vibrating membrane that is disposed on the substra...
03/03/2011
20110033077MAGNET SYSTEM AND METHOD OF MANUFACTURING THE SAME
A method of manufacturing a magnet system (101, 201) for an electro-acoustic transducer (100, 200) comprising a magnet element (105, 205) and at least one pole plate (106, 107, 206, 207), is described, wherein the method comprises providing t...
02/10/2011
20100316242DIGITAL SPEAKER APPARATUS
An actuation system for generating a physical effect, the system comprising at least one array of translating elements each constrained to travel alternately back and forth along a respective axis, toward first and second extreme positions respectively, in response to a...
12/16/2010
20100310110DIAPHRAGM AND MICRO-ELECTROACOUSTIC DEVICE INCORPORATING THE SAME
A diaphragm includes a central portion in a center of the diaphragm and an external portion surrounding the central portion. The central portion includes a central section in a center of the central portion, a peripheral section at an outer periphery of the central port...
12/09/2010
20100304796Magnetic Shield
A mobile apparatus includes an internal hands-free loudspeaker and a magnetic shielding plate that protects external objects sensitive to magnetic fields from the high-level magnetic field generated by the loudspeaker....
12/02/2010
20100278361Configurations And Methods For Broadband Planar Magnetic Induction Transducers
Contemplated planar magnetic induction transducers comprise a driver portion that provides a static magnetic field and a dynamic magnetic field to an electrically conductive sound producing membrane to thereby induce a current in the membrane that operates as a voice co...
11/04/2010
20100278370Motor Structure of Loudspeaker
A motor structure of loudspeaker comprises a magnet, a top plate, a bottom plate, and a pole piece. The magnet has two opposite sides. The top plate rests on one of the two sides of the magnet and jointly forms a central bore with the magnet. The bottom plate supports t...
11/04/2010
20100215206AUDIO SPEAKERS
An audio speaker has at least one transducer for converting electrical signals into mechanical motion. There is a planar sound producing structure that has a first face and a second face. A mechanical connection connects the at least one transducer to the sound producin...
08/26/2010
20100195861Audio Speaker Illumination System
An audio system with an illumination mechanism is disclosed. One embodiment includes a device which can be mounted in the center of an audio speaker and used to create an optical effect....
08/05/2010
20100166247FLEXIBLE LUMINESCENT ELECTRO-ACOUSTIC TRANSDUCER AND ELECTRONIC DEVICE USING THE SAME
An electro-acoustic transducer according to the present invention is provided. The electro-acoustic transducer includes a conductive plate with a plurality of openings, an electret diaphragm and a fluorescent layer. The electret diaphragm is positioned on the conductive...
07/01/2010
20100158304DIAPHRAGM FOR AN ELECTROACOUSTIC TRANSDUCER, AND ELECTROACOUSTIC TRANSDUCER
A diaphragm (6) for an electroacoustic transducer is preferably designed to be essentially rectangular and has a diaphragm inner region (20) for sound conversion and a diaphragm outer region (21) for attaching the diaphragm (6) and a diaphrag...
06/24/2010
20100124352MICRO MAGNETIC DEVICE WITH MAGNETIC SPRING
A micro magnetic device having a body defining at least part of an enclosed chamber, the body comprising a first sidewall and a second sidewall. A pole comprising a soft magnetic material is within the chamber and an electrically conductive coil is positioned around the...
05/20/2010
20100111351SOUND GENERATOR
A sound generator, particularly a loudspeaker, configured to emit sound, comprising a rigid element (2) enclosing a plurality of air compartments (3), wherein the rigid element (2) has a back side (B) comprising apertures (4), and a front sid...
05/06/2010
20100080409Dual-mode loudspeaker
An apparatus uses a transducer to produce vibration in the ultrasonic frequency range and in the audible frequency range. A membrane or cantilever structure is coupled to the transducer to produce acoustic waves. When the vibration is in the audible frequency range, the...
04/01/2010
20100067731Loudspeaker
A loudspeaker comprising a housing provided with a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magne...
03/18/2010
20100046787AUDIO DEVICE FOR IMPROVED SOUND REPRODUCTION
The present invention relates to an audio device comprising a first audio path comprising a loudspeaker for reproducing an audio signal, and a second audio path comprising in series: a band-pass filter (22) for passing frequency components of the audio signal lyi...
02/25/2010
20100034418HIGH PERFORMANCE MICRO SPEAKER
A micro speaker having a first core assembly and a second core assembly, with a diaphragm between the first and second core assemblies. Each of the core assemblies includes a housing with a pole and a cover plate, and a permanent magnet within the housing. At least one ...
02/11/2010
20100022963MEDICAMENT DELIVERY DEVICE CONFIGURED TO PRODUCE AN AUDIBLE OUTPUT
Medicament delivery devices are described herein. In some embodiments, an apparatus includes a medicament delivery device and an electronic circuit system. The medicament delivery device includes a housing, a medicament container, and a medicament delivery member. The e...
01/28/2010
20100021000Sound Producing System
A sound producing system includes an electro-acoustic transducer having an electromagnetic motor for moving a diaphragm of the transducer back and forth to create acoustic waves. The diaphragm has a surface that includes one or more of a surface of a dust cap of the dia...
01/28/2010
20100002900APPARATUS AND METHODS FOR GENERATING PRESSURE WAVES
Actuator apparatus for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a clock, the apparatus comprising at least one array of moving elements each...
01/07/2010
20090316937MONOLITHIC MICRO MAGNETIC DEVICE
A micro magnetic device having a body defining at least part of an enclosed chamber, a pole comprising a soft magnetic material within the chamber, and an electrically conductive coil positioned around the pole. A diaphragm integral with the body defines a top of the ch...
12/24/2009
20090169047Speaker
A speaker includes a sound source, a rod-like member whose base end is in contact with the sound source, and a pair of flexible wing members whose ends are attached to the tip of the rod shape member, and whose other ends are free....
07/02/2009
20090161904SPEAKERPHONE USING ADAPTIVE PHASE ROTATION
An improved speakerphone for a cellular telephone, portable telephone handset, or the like. In one embodiment, a receiver provides an audio signal, and a first phase-shifter phase-shifts the audio signal by a first phase-shift amount. A second phase-shifter phase-shifts...
06/25/2009
20090147984Electroacoustic transducer
An electroacoustic transducer comprises an electric sound conversion section that vibrates a mechanical device based on an electric signal so as to emit a sound wave; and an electromagnetic wave radiation section that generates and emits an electromagnetic wave from the...
06/11/2009
20090141925Electro-dynamic transducer with a slim form factor
In one embodiment of the present invention, an electro-dynamic transducer is disclosed including a diaphragm, a first suspension suspending the diaphragm, a coil former attached to the diaphragm, the coil former having a first, inner portion, and a second, outer portion...
06/04/2009
20090074226PCB WITH EMBEDDED SPEAKER ASSEMBLY
A speaker system that includes a printed circuit board (PCB) and a speaker assembly. The speaker assembly is embedded in the PCB. The speaker assembly may include a coil, a magnet, and a diaphragm. The coil is embedded in a material of the PCB. The magnet is located wit...
03/19/2009
20090060250LOUDSPEAKER WITH REPLACEABLE MOTOR ASSEMBLY
A loudspeaker is provided in which precise alignment is obtained between the frame and motor assembly before they are connected to one another so that a voice coil coupled to the frame may be properly radially and vertically positioned with respect to a magnetic gap in ...
03/05/2009
20090041290EARPHONE SPEAKER WITH ESD PROTECTION
An earphone speaker including a conductive housing, a micro speaker module, and a circuit board is provided. The conductive housing has a holding space. The micro speaker module is disposed in the holding space. The circuit board is disposed outside the conductive housi...
02/12/2009
20090028373PLANT FOR PRODUCTION OF PAPER-MADE PART FOR SPEAKER, PAPER-MADE PART FOR SPEAKER PRODUCED THEREBY, AND SPEAKER UTILIZING THE SAME
The production equipment of paper-made components for loudspeakers includes a mixing device, a fining device, a paper-making device, and a shape processing device. The mixing device mixes material of a paper-made component for a loudspeaker into liquid to generate mixed...
01/29/2009
20080232633Shallow Loudspeaker
Loudspeaker provided with a frame (101), a membrane (103) and a drive unit (105. The membrane has a flat outer circumferential edge (104a) suspended from the frame, and a flat inner circumferential edge (104b). The drive ...
09/25/2008
20080232634SPEAKER WITH SOUND GENERATION PART OF LARGE AREA
A speaker with a sound generation part of a large area is provided. In the speaker, a ring-shaped protrusion part is formed at the outer circumference of the flange par in the frame, and also the inner surface of the outer circumference of the edge is coupled to the out...
09/25/2008
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