Class / Patent application number | Description | Number of patent applications / Date published |
381353000 | Acoustic damping or attenuating resonator | 31 |
20090010470 | Resonating Speaker - A resonating speaker comprises: an upper cover, an upper magnet, a positioning member, a magnetostrictive member, a coil, a lower magnet, a lower cover and a sound-transmitting member. The upper magnet, the positioning member, the magnetostrictive member, and the lower magnet are disposed in the upper cover. And then the connecting portion of the lower cover is connected to that of the upper cover, so that the lower magnet, the magnetostrictive member, and the upper magnet are pressed onto the upper cover by the upper cover, while leaving resonance space between the upper and lower covers. The vibration-transmitting member is fixed to the lower cover. Hence, the resonating speaker is small and easy to carry, and can play sound simply by puffing it on a sound-transmitting medium. | 01-08-2009 |
20090285432 | TUNABLE FREQUENCY ACOUSTIC STRUCTURES - An acoustic structure and a method for dampening sound. The acoustic structure includes an acoustic absorber having one or more acoustic elements. The acoustic absorber is disposed inside a volume. The acoustic structure further includes an acoustic radiator having one or more acoustic elements. The acoustic radiator is disposed outside the volume. A cross-sectional area of the one or more acoustic elements decreases with a distance from a mouth of the one or more acoustic elements to a throat of the one or more acoustic elements. The acoustic structure also includes one or more acoustic waveguide ducts configured to acoustically couple the acoustic absorber and the acoustic radiator. | 11-19-2009 |
20100086163 | RESONATOR SYSTEM FOR A SPEAKER OF AN ELECTRONIC DEVICE - A resonator for a transducer of an electronic device is provided. The resonator comprises: a first enclosure having a first opening to receive a back end of the transducer and a second opening; and a port connected to the first enclosure through the second opening of the enclosure, the port having a first end, a second end, an interior channel spanning from the first end to the second end. When the transducer is mounted into the first enclosure, a first volume between the transducer and the enclosure is formed which is in communication with air surrounding the second end of the port through the interior channel of the port. A second enclosure to cover a front portion of the transducer may be provided. | 04-08-2010 |
20110007923 | Loudspeaker cabinet and reproduction system - A loudspeaker box comprising a first and a second speaker unit each adjacent a sound space formed in the housing. The loudspeaker box further comprises a separation element provided between the sound spaces. The separation element comprises faces to reflect at least a part of sound waves to be radiated by a backside of the speaker units into the sound spaces. As well, the separation element leaves open a passage between the sound spaces. By reflection of sound waves at the faces of the separation element an acoustic influence on the speaker units occurs as a result of which for example an electric filtering of signals being supplied to the speaker units can be dispensed with. In a further aspect of the invention, the loudspeaker box comprises a further compartment that is at least partially filled with a granular material. | 01-13-2011 |
20110182455 | EARPHONE ASSEMBLY WITH MOISTURE RESISTANCE - An acoustic system includes a receiver or microphone, a tube, a barrier, and an equalization device. The receiver is capable of outputting an audio signal. The tube is in connection with the receiver and the audio signal travels along a length of the tube. The barrier is fitted along the tube and the barrier prevents moisture from passing along the tube toward the receiver. The barrier causes an amount of damping to the audio signal. The equalization device is in connection with the receiver and the equalization device counteracts the damping by the barrier. The barrier is configured to have a submersion rating greater than or equal to 7 IP. | 07-28-2011 |
20110206228 | ACOUSTIC STRUCTURE INCLUDING HELMHOLTZ RESONATOR - In a bass reflex type speaker, a Helmholtz resonator is formed by a bass reflex port and a space within a speaker enclosure excluding the bass reflex port and a speaker unit. The bass reflex port of the bass reflex type speaker is movable toward and away from a side surface while maintaining its projecting direction within the speaker enclosure. In response to such movement of the bass reflex port, relative positional relationship between a neck and cavity of the bass reflex type speaker varies. | 08-25-2011 |
20120008813 | Baffle Vibration Reducing - A first electro-acoustic transducer and a second electro-acoustic transducer are supported by a housing attached to a baffle to form an asymmetric acoustical system. An equalizer receives an input signal and generates an equalized signal which is transmitted to the second electro-acoustic transducer. The equalizer is configured to generate the equalized signal such that a net mechanical force acting on the baffle, generated by the first electro-acoustic transducer in response to the input signal and by the second electro-acoustic transducer in response to the equalized signal, is less than the net mechanical force that would be generated if the equalized signal were unchanged in magnitude and equal or opposite in phase to the input signal. | 01-12-2012 |
20120057736 | Audio Device, and Methods for Designing and Making the Audio Devices - An audio device is provided with a plurality of Helmholtz resonators. Whereas a cross-sectional area of a neck and a volume of a cavity communicating with the neck are same between at least two of the Helmholtz resonators, a ratio of minimum and maximum values of distances between a center of gravity of the cross section of the neck and individual points defining an outer periphery of the cross section is different between said at least two of the Helmholtz resonators. | 03-08-2012 |
20120106768 | FRONT RESONATOR FOR A SPEAKER OF A WIRELESS DEVICE - A front resonator for a speaker of a wireless device, comprising: an enclosure mounted over the speaker and forming with an upper surface of the speaker a front volume for the front resonator; and, a horizontal or approximately horizontal tube formed or mounted on a surface of the enclosure, the tube coupled to the front volume, and the tube having at least one end to emit sound generated by the speaker and passing through the front volume and tube from the wireless device. | 05-03-2012 |
20120148082 | PARAMETRIC TRANSDUCERS AND RELATED METHODS - An audio emitter comprises a support member operable to support a sound emittive material and a sound emittive material carried by the support member. A protective screen has a plurality of apertures formed therein, the protective screen being spaced a predetermined distance from the sound emittive material, said predetermined distance being a function of a resonant frequency of the audio emitter. | 06-14-2012 |
20120219171 | Loudspeaker Assembly And System - A loudspeaker assembly is disclosed for use in a loudspeaker system having infinite baffle topology. The assembly comprises a driver including a cone and a basket and at least one Helmholtz resonator including a chamber and a vent duct communicating with the chamber and adapted to pass through the infinite baffle. The chamber is dimensioned to provide a tuned frequency well above an operating band associated with the driver. The cross sectional area and length of the vent duct may be set to provide control over duct air noise and low frequency extension. A method of tuning a loudspeaker assembly for use in a loudspeaker system having infinite baffle topology is also disclosed. | 08-30-2012 |
20120269373 | Apparatus - An apparatus comprises: a transducer configured to generate sound; and a housing defining a first cavity and a second cavity, the first cavity and the second cavity being connected to the transducer; wherein the first cavity comprises a first sound outlet at a first surface of the housing; and the second cavity comprises a second sound outlet at the first surface of the housing and a third sound outlet at a second surface of the housing wherein the first and second cavities and the first and second sound outlets are configured to limit a sound pressure level of the generated sound at the first and second outlets at one or more frequencies. | 10-25-2012 |
20120288130 | Microphone Arrangement - A microphone arrangement includes a housing having a sound hole, a first input audio transducer with a first sensitivity and a second input audio transducer with a second sensitivity. In this microphone arrangement, the first and the second input audio transducers are arranged in the housing, such that the first input audio transducer is directly acoustically coupled with the sound hole and the second input audio transducer is indirectly acoustically coupled with a sound hole via the first input audio transducer. | 11-15-2012 |
20120300968 | SOUND BOX STRUCTURE FOR ELECTRONIC APPARATUS - The present disclosure relates to a sound box structure for an electronic apparatus. The sound box structure is disposed in an electronic apparatus and comprises a resonating cavity, a loudspeaker, and at least an electronic device. The loudspeaker and the electronic device are disposed in the resonating cavity. The present disclosure mainly combines the sound box structure disposed originally in the electronic apparatus with the accommodating space of other electronic devices for expanding the resonating space of the sound box structure for the electronic apparatus. Consequently, the output audio quality of the sound box structure for the electron apparatus can be improved, and hence enhancing the multimedia effects of the electronic apparatus. | 11-29-2012 |
20130016865 | SPEAKER WITH VIBRATION ABSORBING FUNCTION AND RELATED ELECTRONIC DEVICEAANM Yu; Ching-JengAACI New Taipei CityAACO TWAAGP Yu; Ching-Jeng New Taipei City TW - A speaker with vibration absorbing function is disclosed in the present invention. The speaker is disposed on a boss of a casing. The speaker includes a sound box, and a supporting arm disposed on a lateral surface of the sound box. The supporting arm includes a bending portion. An end of the bending portion is connected to the sound box. The supporting arm further includes a hooking portion disposed on the other end of the bending portion for hooking the boss of the casing. Vibration generated from the sound box can decay by the bending portion, and is not transmitted to the boss via the hooking portion. | 01-17-2013 |
20130070950 | MICROPHONE MODULE WITH HELMHOLTZ RESONANCE CHAMBER - An exemplary earphone module includes a faceplate, a bottom cover connected to the top cover, and a microphone received between the faceplate and the bottom cover. The faceplate defines a sound hole therein. The microphone defines a Helmholtz resonance chamber therein. A washer is placed between the faceplate and the microphone. The washer has a sound chamber communicating the sound hole with the Helmholtz resonance chamber. The Helmholtz resonance chamber has a volume V, the sound hole has a diameter d and a length l, and the sound chamber has a diameter D. The diameter D of the sound chamber meets the equation D=d or the formula | 03-21-2013 |
20130094688 | RESONATOR SYSTEM FOR A SPEAKER OF AN ELECTRONIC DEVICE - A system providing a resonator for a transducer of an electronic device is provided. The system comprises a housing defining: a first enclosure having a first opening to house a back end of the transducer and a second opening; a port connected to the first enclosure through the second opening of the first enclosure, the port having a first end, a second end, an interior channel and a second opening in the second end; a second enclosure to cover a front portion of the speaker; and at least one aperture defined in the second enclosure to allow air outside of the electronic device to be in communication with the front of the transducer. When the transducer is mounted into the first enclosure, a first volume between the transducer and the first enclosure is formed which is in communication with air surrounding the second end of the port. | 04-18-2013 |
20130156245 | EXTENDED DUCT WITH DAMPING FOR IMPROVED SPEAKER PERFORMANCE - An electronic audio device including an enclosure having an acoustic output opening and a speaker positioned within the enclosure. The speaker and the acoustic output opening are acoustically coupled by an acoustic output pathway. The acoustic output pathway includes a damping chamber to dampen a resonance frequency of the acoustic output pathway. The speaker is between the damping chamber and the acoustic output opening. | 06-20-2013 |
20130177190 | Balanced Momentum Inertial Duct - A duct design and methods for designing ducts are described herein. The duct has a profile described by an equation that balances momentum of the fluid flowing through the duct with an adverse pressure gradient. The duct profile is configured to: (i) maintain the fluid's momentum to be greater than the adverse pressure gradient present at any location within the duct, such that no boundary layer separation occurs; and (ii) achieve a fluid exit momentum of approximately zero. | 07-11-2013 |
20130195305 | Loudspeaker - A loudspeaker comprising a housing and a membrane mounted in said housing, which membrane can be set vibrating so as to produce sound, wherein the loudspeaker has at least one sound channel which extends between the membrane and the outer side of the housing, and wherein one or more local sound barriers are provided in the sound channel, which sound barriers locally block at least 15% of the cross-sectional area of the sound channel, such that amplification of the sound pressure occurs in the audible frequency range due to resonance. | 08-01-2013 |
20130266170 | TWIN DRIVER EARPHONE - Provided is a technique for improving frequency characteristics by an acoustics-related method so that a sound is heard with natural frequency characteristics when a sound-isolating earphone is fitted in a human ear. A sound-isolating earphone is provided with two or more electroacoustic transducers, wherein independently generated sound waves are passed through isolated sound leading pipes and are mixed just before an entrance of an external auditory canal, and a sound wave of which is twice the difference between path lengths of the two sound leading pipes is attenuated. This serves to provide an easy-to-hear improved sound quality by suppressing the sound wave at around 6 kHz that is transmitted with characteristically high intensity in a sound-isolating earphone. | 10-10-2013 |
20140072162 | Speaker Box - One embodiment of the invention discloses a speaker box having a housing and a speaker accommodated in the housing. The speaker includes a sound radiation surface for generating sound. The housing includes a first and second output ports disposed at one side of the housing for transmitting the sound to outside of the speaker box. The housing includes a plurality of ribs disposed therein and forming a bending channel. The first and second output ports are disposed at two ends of the bending channel. The bending channel is divided into a front channel and a back channel by the speaker. The speaker box is capable of obtaining a better low frequency sound reproduction quality. | 03-13-2014 |
20140126761 | SPEAKER APPARATUS FOR PRODUCING SOUND - A speaker apparatus for producing sound comprising of a housing, a plurality of covers, a speaker driver, a radiator, a resonator and a resonator stand which in combination provide an enhanced low frequency sound output. | 05-08-2014 |
20140294220 | LOUDSPEAKER UNIT WITH TWO LOUDSPEAKERS AND A WEDGE-SHAPED BODY BETWEEN THE SPACES ADJOINING THE LOUDSPEAKERS - A loudspeaker unit comprising a loudspeaker housing and a first and a second loudspeaker, wherein the two loudspeakers are both placed in a flat front wall of the loudspeaker housing, the rear side of the first loudspeaker adjoins a first space in the loudspeaker box and the rear side of the second loudspeaker adjoins a second space in the loudspeaker box, and the first and the second space in the loudspeaker box are separated by a wedge-shaped body, the base of which is connected to a wall placed opposite the front wall and the intersection between the sloping surfaces of which is located in the vicinity of the front wall, wherein the wedge has a length in the direction transversely of the plane of the front wall that is at least twice the distance between the sloping surfaces at the position of the base of the wedge-shaped body. | 10-02-2014 |
20150010190 | SOUND GENERATING APPARATUS AND ELECTRONIC APPARATUS INCLUDING THE SAME - A sound generating apparatus is provided for expanding a mid-range of a slit-firing type speaker system. The sound generating apparatus includes a vibrator, a body part which encloses the vibrator, a path through which the generated sound is transmitted, and a slit formed in a length direction of the body part connected to an end portion of the path and configured to emit the sound. | 01-08-2015 |
20150016652 | Sealed Speaker System Having a Pressure Vent - A sealed speaker system includes an enclosure and a transducer diaphragm mounted within the enclosure, where an increase in air pressure within the enclosure results in an outward movement of the diaphragm toward an exterior of the enclosure, and a decrease in air pressure within the enclosure results in an inward movement of the diaphragm toward an interior of the enclosure. A pressure vent is provided in the enclosure and allows a gradual transfer of air between the enclosure interior and the enclosure exterior to substantially maintain a pressure equilibrium between the enclosure interior and the enclosure exterior. | 01-15-2015 |
20150078605 | SPEAKER STRUCTURE - The present invention provides an improved speaker structure, which includes a speaker body, a resonance body and at least one sound guiding portion. The resonance body includes a resonance film and a resonance film frame. The sound guiding portion includes a first sound guiding member, a second sound guiding member and a back frame unit. The speaker structure forms a sealed sound chamber by combining the speaker body, the resonance body and the at least one sound guiding portion. When the speaker body generates a front sound wave and a guiding sound wave, the front sound wave is transmitted within the sound chamber to the resonance film to enhance low frequency sound effect, and the guiding sound wave is transmitted within the resonance cavity and forms a back sound wave, thus reducing noise in the sound region and enabling better extension of the sound wave towards low frequency range. | 03-19-2015 |
20160127821 | ACOUSTIC SYSTEM HAVING A HOUSING WITH ADSORBENT POWDER - An acoustic system is provided that includes a transducer having a housing, which encloses a volume and in which at least a surface or a sub-surface is formed by a sheet-like structure configured to vibrate. Powder made of adsorbent material having an adsorption effective surface may be present in the volume. The powder may be selected such that, through a movement of the powder caused by vibrations of the sheet-like structure configured to vibrate, the adsorption effective surface is enlarged. The adsorbent material may be selected such that an adsorption of air or gas present in the volume is caused by an increase of the pressure caused from vibrations of the sheet-like structure configured to vibrate. The powder is freely movable within the housing. | 05-05-2016 |
20160173972 | Sealed Speaker System Having a Pressure Vent | 06-16-2016 |
20170238085 | In-Ear Monitor | 08-17-2017 |
20180027322 | Speaker Box and Method for Manufacturing Same | 01-25-2018 |