Entries |
Document | Title | Date |
20080199032 | Loudspeaker enclosure with cylindrical compression chamber and tapered triangular folded horn terminating in an extended triangular bell. - A loudspeaker enclosure with a cylindrical compression chamber to which an electro-dynamic loudspeaker is mounted at the front. The rear of the cylindrical compression chamber is faired to the front of a tapered triangular pipe with a slot to connect the air column in the cylinder to the air column in the triangular tapered pipe. A baffle inside the tapered triangular pipe splits the tapered pipe into two triangular pipes, effectively increasing the length of the triangular air column substantially. This tapered triangular air column expands into an extended triangular bell and then the room. | 08-21-2008 |
20080240482 | Arrangement For Optimizing the Frequency Response of an Electro-Acoustic Transducer - An arrangement for optimizing the frequency response of an electro-acoustic transducer (10), comprising the electro-acoustic transducer ( | 10-02-2008 |
20080292127 | Electroacoustic Component - An electroacoustic component includes a carrier substrate and a piezosubstrate having piezoelectric properties. The electroacoustic component also includes a layer system between the carrier substrate and the piezosubstrate. | 11-27-2008 |
20090190783 | SPEAKER SET FOR PORTABLE ELECTRONIC DEVICE - A speaker set includes a hollow shell, a back cover, and a loudspeaker. The shell includes at least one partition wall dividing an inner space of the shell into a first chamber, a second chamber, and a third chamber. The loudspeaker is packaged between the shell and the back cover. The loudspeaker is accommodated in the first chamber, and divides the first chamber into a front sub-chamber and a rear sub-chamber. The front and rear sub-chambers respectively communicate with the second and third chambers thereby forming a front resonance chamber and a rear resonance chamber respectively. The loudspeaker has a plurality of front tone holes and a plurality of rear tone holes respectively communicating with the front sub-chamber and the rear sub-chamber. The front resonance chamber communicates with a surrounding environment so that sound waves emanating from the front tone holes can be transmitted to the surrounding environment. | 07-30-2009 |
20090252363 | Loudspeaker Assembly - A loudspeaker assembly comprises a base supporting at least one electro-acoustic transducer and at least one waveguide segment detachably supported by the base. | 10-08-2009 |
20090316943 | AUDIO DEVICES - An electronic device having an audio function and its loudspeaker arrangement are described. The electronic device comprises an exterior housing, an acoustic transducer and an acoustic radiator forming a part of the exterior housing of the electronic device. In one embodiment, the exterior housing undergoes pistonic movement and is provided with hydrogel pads to couple an acoustic signal to an auxiliary surface, which then vibrates in a distributed mode. The voice coil may be directly bonded to the exterior housing. A formation may be provided to promote pistonic movement of a part of the exterior housing. Methods of operation and formation are also described. | 12-24-2009 |
20090323995 | Miniature Planar Acoustic Networks - A miniature acoustic network comprises a substantially planar member ( | 12-31-2009 |
20100008528 | Dual Mode Earphone With Acoustic Equalization - In one embodiment, a dual-mode earphone is provided, comprising a first earbud including a speaker with a diaphragm and at least one acoustic port in front of the diaphragm, and a cap in front of the speaker. The speaker or the cap is configured to move relative to the other for opening and closing the acoustic port in one embodiment and a movable seal is provided in another embodiment. The earphone further includes a second earbud housing operably coupled to the first earbud opposite the speaker. A method for providing acoustic equalization in a dual-mode earphone is also disclosed. | 01-14-2010 |
20100027826 | MANUFACTURING METHOD OF PAPER MAKING PART FOR LOUDSPEAKER, PAPER MAKING PART FOR LOUDSPEAKER, DIAPHRAGM FOR LOUDSPEAKER, SUB CONE FOR LOUDSPEAKER, DUST CAP FOR LOUDSPEAKER AND LOUDSPEAKER - A manufacturing method of a paper making part for a loudspeaker has freedom of adjusting a characteristic and a sound quality, and has a higher productivity. Accordingly, a fibrillating step of a paper making material is achieved by an explosive crushing step. Alternatively, the step is achieved by a mixing step of a paper making material and a liquid, a material micro-fabricating step of applying a pressure to a mixed solution obtained by the mixing step so as to pass through an orifice and thereafter run into a device wall, and a paper making step including the micro-fabricated material. | 02-04-2010 |
20100061577 | Electromagnetic Interference Shields with Piezos - Methods and apparatus for improving the acoustical performance associated with a speaker, such as a piezoelectric speaker, are disclosed. According to one aspect, an apparatus includes a substrate, a can mounted on the substrate, and a piezoelectric speaker arrangement. The piezoelectric speaker arrangement is at least partially mounted on the can. In one embodiment, the substrate is a printed circuit board (PCB) and the can is an electromagnetic interference (EMI) shielding can. | 03-11-2010 |
20100183179 | Acoustic Dock for Portable Electronic Device - An accessory for a portable electronic device having a speaker uses an acoustic wave guide to passively amplify and direct the output of the device's speaker. The accessory has a housing with a docking cavity formed therein. The docking cavity has supportive sidewalls that are adapted to receive and support the portable electronic device in an upright position. A cable access channel is formed in the docking cavity that allows a connector and cable to be coupled to the portable electronic device when the portable electronic device is mounted in the docking cavity. An acoustic waveguide having a spiral shaped acoustic chamber is positioned in the housing such that an entrance to the acoustic waveguide corresponds to a hole in the docking cavity that is positioned to correspond to the location of the speaker of the device when the device is mounted in the docking chamber. The exit of the acoustic chamber corresponds to an exterior opening in a sidewall of the housing and the hole in the docking cavity. The housing can be provided with charging circuitry to charge the device when the device is mounted in the dock. | 07-22-2010 |
20100316242 | DIGITAL 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 activation of first and second forces respectively; and a controller operative to use the first and second forces to selectably latch at least one subset of said translating elements into the first and second extreme positions respectively. | 12-16-2010 |
20110096949 | Sound reproduction device with enhanced low-frequency sound effect - This invention is to provide a sound reproduction device including a tube, a loudspeaker and a resonance unit, wherein the loudspeaker includes a frame body having a side adjacent to a first diaphragm thereof peripherally fixed to a first opening of the tube, and the resonance unit includes a second diaphragm peripherally fixed to a second opening of the tube and a weighting element fixed at a central position of the second diaphragm. Thus, a closed resonance chamber is defined within the tube between the loudspeaker and resonance unit. When the loudspeaker is driven, the first diaphragm is vibrated and in turn vibrates air in front of the sound reproduction device to make sound and drives the second diaphragm to vibrate air behind the sound reproduction device synchronously in the same direction, thereby producing twice as strong low-frequency sound effect as a traditional sound reproduction device without a resonance unit. | 04-28-2011 |
20110103631 | SHAPE-ADAPTABLE SURFACE FOR AN AUDIO PORT - A method and apparatus for providing a shape-adaptable surface for an audio port of a device includes an audio port, a shape-adaptable surface having a plurality of portions, a plurality of sensors coupled to the shape-adaptable surface, wherein the plurality of sensors are operative to sense a plurality of distances between the object and the shape-adaptable surface, and a processor operatively coupled to the shape-adaptable surface and the plurality of sensors, said processor configured to control some of the plurality of portions of the shape-adaptable surface to adjust the plurality of distances and to provide a channel between a sound receiver of the object and the audio port. An improved audio coupling is formed by adjusting the distances between the shape-adaptable surface and the object, thereby transmitting sounds directly from the audio port of the device to a sound receiver of the object. | 05-05-2011 |
20110158445 | DIPOLE LOUDSPEAKER WITH ACOUSTIC WAVEGUIDE - A loudspeaker based on a dipole element (DE) with at least one diaphragm arranged to generate an acoustic dipole signal according to an electric signal, e.g. a dedicated dipole driver such as an Air Motion Transformer or a combination of two monopole drivers, e.g. dome tweeters, mounted back to back close together. An acoustic waveguide (WG) is arranged in relation to the dipole element (DE) such that a surface (S) of the acoustic waveguide (WG) is close to the at least one diaphragm of the dipole element (DE). The acoustic waveguide (WG) extends in both directions of a main axis (MA) of the dipole element (DE), thus serving to guide the acoustic dipole signals away from the dipole element (DE). Preferably, the surface (S | 06-30-2011 |
20110280430 | RESONANCE DEVICE FOR SPEAKER - A resonance device for a speaker is provided. The device includes a speaker unit and a resonance unit. The speaker unit outputs a sound corresponding to a signal. The resonance unit is fixed to the speaker unit to provide a space for allowing a sound to resonate. The resonance unit is flexible, and the space for allowing a sound to resonate is variable. | 11-17-2011 |
20120020510 | MICROPHONE UNIT - Disclosed is a microphone unit ( | 01-26-2012 |
20120106765 | LOUDSPEAKER SYSTEM AND WAVESHAPING UNIT - The invention concerns a loudspeaker system having a plurality of segmented line array speakers and a plurality of acoustic waveshapers. In addition there is provided an overlap region between two adjacent waveshapers. | 05-03-2012 |
20120106766 | ELECTRONIC DEVICE - The objective of the present invention is to provide an electronic device in which sound quality of the sound radiated from a panel is changeable. | 05-03-2012 |
20120121118 | SLOTTED WAVEGUIDE FOR LOUDSPEAKERS - A slotted waveguide for use with an electrodynamic transducer is described. The slotted waveguide has a transducer front surface for radiating acoustic energy from the electrodynamic transducer. The transducer front surface is concave and the electrodynamic transducer is operable to a desired high frequency. The slotted waveguide may include a body and a volume displacement element. The slotted opening has a width not substantially greater than a wavelength corresponding to the desired high frequency and the volume displacement element has a displacement surface that extends inward into the electrodynamic transducer and complements in shape the transducer front surface. | 05-17-2012 |
20120155686 | LOUDSPEAKER ASSEMBLY - A loudspeaker assembly includes a first shell, a second shell, and a loudspeaker embedded in the first shell. Together the first shell and the second shell enclose a sound chamber. At least one of the first shell and the second shell can be folded to adjust the size of the sound chamber. | 06-21-2012 |
20120269371 | SYNCHRONIZATION SYSTEM AND METHOD FOR TRANSMISSION AND RECEPTION IN AUDIBLE FREQUENCY RANGE-BASED SOUND COMMUNICATION, AND APPARATUS APPLIED THERETO - Provided is a synchronization system and method for acoustic communication in audible frequency range, and an apparatus applied thereto. The synchronization system for acoustic communication in audible frequency range is configured to prevent deterioration of a synchronization performance and to reduce an amount of calculation by calculating a correlation based on a few samples as opposed to calculating a correlation for each sample when a receiver of the acoustic communication performs synchronization while the acoustic communication is performed in the audible frequency range through modification of an audio signal or adding of a predetermined signal to an audio signal. | 10-25-2012 |
20130129133 | MICROPHONE UNIT - A microphone unit ( | 05-23-2013 |
20130216083 | DIRECTIONAL AUDIO WAVEGUIDE ARRAY - A directional waveguide array apparatus can transmit and/or receive airborne or fluid-borne audio with the appropriate selection of transducers. The present invention advances directional waveguide arrays by allowing construction of a directional audio device with desired frequency bandwidths, array patterns, and gain by appropriate geometric configurations of the array of waveguide channel ports, as well as dimensioning and configuration of waveguide channel and chamber parameters. Embodiments of the present invention enable increased immunity to environmental noises, temperature, and humidity; low cost of construction; high reliability; simplicity of operation; very low power consumption; real-time steering of directivity (interference) pattern; wide range of audio powers that can be transmitted or received; and interchangeable transducer types. | 08-22-2013 |
20130322674 | METHOD AND SYSTEM FOR DIRECTING SOUND TO A SELECT USER WITHIN A PREMISES - An approach for enabling audio content to be directed to a select user from any location within a premises is described. A directional sound module determines a signal strength of a mobile device associated with a user relative to a wireless access point located within a premises and correlates the signal strength to a reference location within the premises based on predetermined wireless fingerprint information. The directional sound module then determines a direction to transmit an ultrasound signal for conveying audible sound to the user. | 12-05-2013 |
20140270307 | ULTRA-SLIM SPEAKER STRUCTURE - A ultra-slim includes bass, alto membranes and acoustical element, where a surrounding embossed pattern is configured on a location adjacent to the rim of the bass membrane to form a dangling edge, and a frame stopping portion formed by a step is disposed on the center thereof. Whereby, a groove formed by a step is disposed on the center of alto membrane, and the acoustical element is formed by stacking a plurality of ceramic material layers together, thereby mounting the acoustical element on the alto membrane, and then lodging the alto membrane in the inner edge of the frame stopping element of the bass membrane to construct a thinned speaker in which sound is guided out through the bass and alto membranes after audio signals are received, capable of the application thereof to thinned products such as iPad, iPhone, cellular phones or notebook computers. | 09-18-2014 |
20140294218 | TRANSDUCER APPARATUS - An acoustic transducer comprising: a mechanical acoustic filter configured to be electrically controllable to change the acoustic properties of the transducer. | 10-02-2014 |
20150055811 | TECHNIQUES FOR GENERATING AUDIO SIGNALS - Techniques described herein generally relate to generating an audio signal with a speaker. In some examples, a speaker device is described that includes a membrane and a shutter. The membrane can be configured to oscillate along a first directional path and at a first frequency effective to generate an ultrasonic acoustic signal. The shutter can be positioned about the membrane and configured to modulate the ultrasonic acoustic signal such that an audio signal can be generated. | 02-26-2015 |
20150071473 | TRANSMISSION LINE LOUDSPEAKER - A loudspeaker including an acoustic waveguide includes an enclosure, an acoustic transmission line formed within the enclosure, and a plurality of acoustic transducers contained within the enclosure and disposed along a length of the acoustic transmission line. Each acoustic transducer is configured to emit acoustic energy directly into the acoustic transmission line at two separated locations along the length of the acoustic transmission line. | 03-12-2015 |
20150092973 | SYSTEM AND METHOD FOR BASS ENHANCEMENT - A system and method for enhancing the real and/or perceived bass band of an audio signal is disclosed. A computationally simple yet effective bass band enhancement system for use in consumer electronics applications is disclosed. An audio processing system including bass enhancement functionality for use in a mobile audio system is disclosed. | 04-02-2015 |
20150110326 | ANTI-DIFFRACTION AND PHASE CORRECTION STRUCTURE FOR PLANAR MAGNETIC TRANSDUCERS - An anti-diffraction plate for including in a planar magnetic transducer. The anti-diffraction plate includes anti-diffraction structures for positioning adjacent to magnets of the planar magnetic transducer. By introducing a shape over top surface of the magnets, the anti-diffraction structures cause the elimination of diffraction patterns as a main audio wavefront passes by the magnets from a diaphragm. A diffusion structure for diffusing reflected sound waves, the diffusion structures reducing or eliminating the power and capacity of the reflected sound waves to create interference patterns with oncoming sound waves. | 04-23-2015 |
20150365758 | Audio Wave Guide - A speaker driver assembly for use in a speaker system is provided. The speaker driver assembly includes at least one centrally located high frequency sound driver and at least one mid-range frequency sound driver located to either side of the high frequency sound driver. A waveguide wall in the front of the speaker driver assembly directs the high frequency sound waves outwards from a centrally located opening. The waveguide wall has a plurality of small apertures in front of each mid-range frequency driver that are angled outwardly to allow mid-range sound waves to pass through the apertures while minimizing diffraction of high frequency sound waves passing by the apertures in order to generate a coherent sound wave front. | 12-17-2015 |
20160198256 | PERFORATED PHASE ALIGNMENT TWEETER SCREEN | 07-07-2016 |