| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 181177000 | Intensifying horn | 26 |
| 20100219012 | PASSIVE SPEAKER SYSTEM FOR PHONES AND OTHER DEVICES - An amplification device for use with a phone or other electronic device having a speaker. The amplification device typically includes an amplification structure having an input end and an output end, and an adapter located proximal to the input end and configured to engage a phone or other electronic device such that a speaker on the phone or other electronic device emanates sound into the input end, whereby the sound is amplified by the amplification structure. | 09-02-2010 |
| 20140174846 | PROTECTIVE CASE FOR A MOBILE DEVICE AND SOUND AMPLIFICATION FEATURE THEREOF - Protective cases for use with mobile devices (phones and tables) are disclosed herein and include a sound amplification feature which is integral to the case and serves to amplify the sound emitted from the speaker of the mobile device. | 06-26-2014 |
| 20150027802 | CASE FOR PORTABLE ELECTRONIC DEVICE AND SOUND CHANNEL - Disclosed is a device that in many embodiments may be comprised of what is commonly described as a “case” in the portable electronic device industry, which is largely a cavity which envelopes the portable electronic device. This case may be one solid piece, or be multiple pieces that then assemble around the portable electronic device to protect and/or decorate the device. In one embodiment, the case's functional purpose is serving as a wallet, with a slot to store items such as credit or identification cards. In a preferred embodiment the case component may then be comprised of one or more sound guides which are designed to control and direct sound from its origin and emit the sound towards the front or the face of the case. This origin is typically one or more speakers, and the guides may additionally serve to alter or enhance the acoustics of the produced sound. | 01-29-2015 |
| 181178000 | Collapsible | 2 |
| 20090114474 | Megaphone sign for use at events - A portable sign which can be used at sporting or other events that doubles as a megaphone formed from a flexible sheet of dry erase material cut into the shape of a “baseball field”—having two opposing, elongated sides, an upper arced edge and a complimentary lower arced edge. The flexible dry erase material has an inner dry erase surface which is ideal for use in making signs for holding up while attending a sporting or other event. The device further includes an attachment mechanism, such as Velcro, which is preferably affixed to and positioned on the opposite, elongated “V” shaped sides of the material such that the material can be rolled/folded into a conical shape with the opposite elongated sides then being held together via the attachment mechanism, i.e. the Velcro, thereby forming a megaphone which can be used to shout and cheer at the event. | 05-07-2009 |
| 20120145477 | COLLAPSIBLE MEGAPHONE DEVICE - A collapsible megaphone device having a body portion capable of lying flat in a first state and capable of assuming the shape of a megaphone in a second state where in the first state, the collapsible megaphone device is substantially two dimensional and planar having a first edge, second edge and boundary edges joining the first and second edges. The collapsible megaphone device is convertible from the first state to the second state by exerting pressure against its boundary edges and is returnable to the first state by removing pressure from its boundary edges. | 06-14-2012 |
| 181179000 | With particular mounting structure | 1 |
| 20120024619 | PROTECTIVE SLEEVE HAVING AN EXTERNAL SOUND-AMPLIFYING MEMBER - A protective sleeve having an external sound-amplifying member is configured to cover a portable electronic product having an audio port, and it includes a covering element covering the portable electronic product and a sound-amplifying member. A surface of the covering element is provided with a connecting hole in communication with the audio port. The sound-amplifying member is hollow and connected to the outside of the covering element. One end of the sound-amplifying member is formed into an insertion section inserted into the connecting hole, and the other end thereof is formed into a sound-amplifying section. The sound of the portable electronic product is emitted from the audio port and amplified through the sound-amplifying member and the sound-amplifying section. By this structure, an external loud speaker is unnecessary, and the protective sleeve itself can generate a sufficient sound-amplifying effect, thereby increasing the functionality and practicability of the protective sleeve. | 02-02-2012 |
| 181182000 | With resonant chamber | 3 |
| 20140069736 | AMPLIFYING COVER FOR A PORTABLE AUDIO DEVICE - An amplifying cover for an audio device that enhances the audio output of the device, such as voice or music, louder and clearer, without adding to the bulk of the device. The cover redirects the audio output of the device to a different location that enhances the ergonomics of the device. The amplifying cover can redirect the sound (while also amplifying it) to the top of the device, closer to the user's ear, or to the side of the device. The amplifying cover can redirect the sound to a plurality of different directions, making it easier to make conference calls. The cover is a protective case for an electronic device that also amplifies the sound produced by the electronic device. The cover provides a portable and compact acoustic amplifier for an electronic device that can be permanently or semi-permanently attached to the electronic device. | 03-13-2014 |
| 20150122575 | SOUND AMPLIFICATION BOX AND SOUND AMPLIFICATION DEVICE INCLUDING THE SAME - Provided are a sound amplification box and a sound amplification device. The sound amplification box includes a body including a predetermined resonance space therein and having a surface contacting an electronic device, a resonance hole formed in at least one surface of the body, and a vibration transmission part in a predetermined region of the surface contacting the electronic device. | 05-07-2015 |
| 20160203810 | NON-RECIPROCAL ACOUSTIC DEVICES BASED ON LINEAR OR ANGULAR MOMENTUM BIASING | 07-14-2016 |
| 181184000 | Having apertures in walls | 2 |
| 20140262600 | PHASE PLUG DEVICE - An acoustical phase plug for use in loudspeakers produces a planar rectangular wavefront, or a wavefront with a desired amount of curvature, from the output aperture of the phase plug device when presented with a planar circular wavefront at the input aperture. The phase plug utilizes a waveguide that equalizes the travel paths from the input aperture to the output aperture. The waveguide essentially eliminates surface discontinuities thereby resulting in the reduction of diffraction of the wavefront travelling through the phase plug device. | 09-18-2014 |
| 20160192062 | ACOUSTICALLY TRANSPARENT WAVEGUIDE - The invention provides a high-frequency acoustic waveguide for use in coaxial loudspeaker systems. The waveguide is made up of a plurality of walls that define a conduit with an input end and an output end. Each of the walls includes a mask layer and a perforation layer. The mask layer has a plurality of holes sized and shaped to make the mask layer acoustically transparent to sound waves below a crossover frequency. The perforation layer has a plurality of micro-perforations sized and shaped to make the perforation layer acoustically opaque to sound waves above the crossover frequency. The waveguide directs sound waves above the crossover frequency, and is acoustically transparent to sound waves below the crossover frequency. | 06-30-2016 |
| 181185000 | With sound-path restriction | 3 |
| 20130220730 | FOLDED HORN ENCLOSURE WITH INTER-CHANNEL REFLEX-PORTING - A low frequency exponential folded horn enclosure employing a bifurcated horn terminal pathway and a single driver with a bifurcated throat channel, with driver access from the top or bottom of the enclosure. The horizontal “butterfly” throat is located at the rear of the enclosure and expands vertically, and the vertically arranged bifurcated horn terminus exhausts in a mostly forward direction on opposite sides of the back chamber which is reflex-ported; said ports arranged to each exhaust into the channel folds at each respective corner of the terminal horn channel. | 08-29-2013 |
| 20140262601 | Directed Acoustic Broadcast Array - A plurality of sound emitters mounted on a vehicle having a configurable phase of emission and configured such that they focus the beam pattern in a selected direction. | 09-18-2014 |
| 181186000 | Adjustable | 1 |
| 20090277713 | Acoustic Loading Device for Loudspeakers - A loudspeaker horn includes a pair of opposed flared sides defining a passage diverging to a mouth, and a vane positioned in the passage for steering sound waves through the passage. The vane may have a straight configuration and be either centrally located between the flared sides or laterally offset in the diverging passage. The vane may be fixed in position or, more preferably, be pivotable so as to be adjustable before each new use according to conditions at that use. The horn may be part of a horn unit that includes a funnel for feeding sound to the horn, and the horn or horn unit may be part of a horn loudspeaker. | 11-12-2009 |
| 181187000 | Plural intensifying portions | 2 |
| 20100006367 | Combination midrange and high frequency horn - A middle frequency horn and high frequency horn assembly having a straight pathway with a shared unitary terminus defined by shared side walls which approach a perpendicular angle compared to the horn axis. The two air columns are separated and partially defined by an internal horizontal baffle in which the top and bottom surfaces are angled to decrease in vertical separation in both upward and downward directions starting from the vertical distance between the respective throat openings and decreasing in separation while progressing toward the mouth, where the angled surfaces intersect and terminate the baffle substantially proximate to the horn mouth. | 01-14-2010 |
| 181188000 | Similar portions | 1 |
| 20130146390 | BEHIND THE DETECTOR SOUNDER - A behind the detector sounder has a base plate and walls which define mechanical horns having throats which open into a space at the centre of the base plate. The mouths of the mechanical horns are at the outer periphery of the base plate and the walls bound sound paths which are longer than the straight line distance from the throat of each mechanical horn to the mouth of that mechanical horn. | 06-13-2013 |
| 181189000 | Multisection housing | 1 |
| 20150325222 | Single Container-Based Portable Drum Kit - A drum kit container is configured to house various compartments sufficient to stow all of the equipment needed by a drummer in setting up a drum kit. One compartment is sized to house a relatively small bass drum, with an acoustic chamber formed behind this compartment and used to improve the sound of a small bass drum so that it sounds more like a larger bass drum as generally used in performance. | 11-12-2015 |
| 181191000 | With external sound deflector | 3 |
| 20120241247 | Audio Enhancing Apparatus for Smart Tablets - An Audio enhancer apparatus for smart phones and smart tablets that is portable, attachable and detachable to an audio producing device providing a richer, louder and pseudo stereo listening experience without the need of electricity or any other types of power source. | 09-27-2012 |
| 20150041244 | Universal Tablet Holder - A tablet holder includes a holding frame and fasteners at corner regions of the holding frame by which a variety of tablets of differing size can be secured to the holding frame. The fasteners include straps for passing over the corner regions of the tablet. A number of selectable anchor points are provided at the holding frame corner regions from which the straps can extend, each being selectable depending on the dimensions of the tablet. | 02-12-2015 |
| 20150371625 | SOUND DEFLECTING APPARATUS - A sound deflector apparatus having mutually coextensive tab and wall portions, the tab portion mounted to an area of an electronic device adjacent the speaker outlet(s), and the wall portion having a curvilinear segment or bend directing sound waves toward the listener(s) viewing programming on a flat-screen television, monitor, smart device, and/or similar electronic devices with such speaker outlet configurations. | 12-24-2015 |
| 181192000 | Particular shape of the horn | 6 |
| 20080264717 | Sound-wave path-length correcting structure for speaker system - A sound-wave path-length correcting structure for a speaker system includes a sound source and a horn. The horn has a sound-wave path-length correcting throat portion. The sound-wave path-length correcting throat portion corrects a sound-wave path-length of a sound wave input from an inlet opening thereof in the sound path, and emits the sound wave from an outlet opening thereof. The sound path is defined by a first side surface with a concave curved surface and a second side surface with a convex curved surface that face each other with a space, and a third side surface and a fourth side surface that face each other with a space. The third side surface and the fourth side surface are formed so that their surfaces gradually widen as the surfaces advance from the inlet opening to the outlet opening of the sound-wave path-length-correcting throat portion. | 10-30-2008 |
| 20090057052 | Acoustic horn having internally raised geometric shapes - A horn and a loudspeaker employing the horn are disclosed that include a body having a throat that expands outwardly to a mouth such that a first interior area defined by the throat is smaller than a second interior area defined by the mouth. A plurality of raised surface areas is located on an interior surface of the body. The raised surface areas extend into a hollow interior defined by the body a predetermined distance and are utilized to channel sound waves through the body and out the mouth. | 03-05-2009 |
| 20090065293 | CONVERTIBLE FOLDED HORN ENCLOSURE WITH IMPROVED COMPACTNESS - A low frequency exponential bass horn enclosure employing a bifurcated horn pathway and twin throats, convertible to a variety of front-loaded or rear-loaded configurations without modifications by the use of interchangeable parts, with driver access typically from the front. Optimized for corner placement but fully enclosed horn channel allows for floor or wall use. The horizontal “butterfly” throat is located at the rear of the enclosure and expands vertically, and the vertically arranged horn terminus exhausts in forward-canted splay angles around a partially rectangular back chamber. | 03-12-2009 |
| 20090084625 | ACOUSTIC WAVEGUIDE MODE CONTROLLING - An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic device including an acoustic driver and an acoustic waveguide with two open ends. A method for making the acoustic device. | 04-02-2009 |
| 20150014089 | LOUDSPEAKER HORN - A horn for use with a loudspeaker may include an entrance disposed at a first axial end of the horn and configured to receive a driver. A mouth may be disposed at a second axial end of the horn opposite the entrance. A contoured surface may extend between the entrance and the mouth. A cross sectional shape of a coverage pattern of audible sound emitted by the loudspeaker coupled with the horn may be independent of a shape of the entrance and a shape of the mouth. | 01-15-2015 |
| 20150090521 | MODULAR ACOUSTIC HORNS AND HORN ARRAYS - A modular horn type loudspeaker and a modular horn array formed of modular loudspeakers. An acoustic horn includes a first acoustic module. The first acoustic module includes a first acoustic driver and a first acoustic duct, for conducting acoustic energy from the first acoustic driver. The first acoustic duct has a first opening through which acoustic energy is radiated. The first acoustic duct is characterized by a first centerline. A second acoustic module includes a second acoustic driver and a second acoustic duct, for conducting acoustic energy from the acoustic driver. The second acoustic duct has a second opening through which acoustic energy is radiated. The second acoustic duct is characterized by a second centerline. | 04-02-2015 |
