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7623670 |
Waveguide electroacoustical transducing
A waveguide system for radiating sound waves. The system includes a low loss waveguide for transmitting sound waves, having walls are tapered so that said cross-sectional area of the exit end is...
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7610991 |
Speaker and method of outputting acoustic sound
A speaker contains a pipe member containing opposed ends and a sounding body that is driven on the basis of an acoustic signal which is applied to the sounding body. The sounding body is arranged...
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7558395 |
Loudspeaker
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...
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7536024 |
Loudspeaker
A loudspeaker comprising a loudspeaker drive unit being operable to radiate sound in a forward direction and a rearward direction and an enclosure configured to receive sound radiated in the...
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7526094 |
Normalization and calibration of microphones in sound-intensity probes
A system for normalizing and calibrating the microphones of a sound-intensity probe or a composite of such probes, with respect to a stable comparison microphone with known acoustical...
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7522741 |
Electro-acoustic apparatus comprising an electro-acoustic transducer
In the case of an electro-acoustic apparatus ( 1 ) having a housing ( 2 ) with a housing wall ( 9 ) and having an electro-acoustic transducer ( 17 ) that is arranged facing the housing wall ( 9 ),...
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7506721 |
Convertible folded horn enclosure
A low frequency exponential bass horn enclosure employing a large area unitary throat pathway, bifurcated at a substantially parabolic rearward channel wall, convertible to a front-loaded or...
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7508933 |
Resonance chamber of a cellular phone
A cellular phone having a first opening for delivering voice on a shell is provided. A printed circuit board (PCB) is disposed within an inner space enclosed by the shell and divides the inner...
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7466837 |
Diffuser and speaker using the same
A spherical wave generating diffuser positioned in front of the sound emission side of a sound source. The diffuser comprises an inner horn and an outer horn positioned concentrically around the...
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7450733 |
Speaker with externally mounted acoustic extension
A speaker comprises an enclosure with at least one wall; and an acoustic driver mounted in an interior of the enclosure and being attached to a front wall of the enclosure. An acoustic extension is...
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7436972 |
Folded coaxial transmission line loudspeaker
A loudspeaker has a loudspeaker driver and a first tube having a base end coupled to the driver and extending towards the rear end of the loudspeaker. A second tube of larger cross sectional...
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7426280 |
Electroacoustic waveguide transducing
An acoustic waveguide system, having source of acoustic radiation and a source of opposing acoustic radiation. An acoustic waveguide has an open end and an interior. A first acoustic driver having...
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7410029 |
Bass reflex type loudspeaker apparatus, loudspeaker box and image display apparatus
A bass reflex type loudspeaker apparatus is provided in which a long route of a bass reflex duct is obtained in the case where a loudspeaker box is made thin. The bass reflex duct is provided in...
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7392880 |
Dual range horn with acoustic crossover
A new approach has been developed to combine mid-range and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between...
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7379556 |
Speaker device
A speaker device includes an acoustic capacity unit; an acoustic pipe connected to the acoustic capacity unit; and a driving speaker attached to the acoustic capacity unit. The acoustic capacity...
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7356155 |
Device and method for assisting vocalists in hearing their vocal sounds
The present invention, in one embodiment, includes a reverb device and method for assisting vocalists in hearing their vocal sounds. The reverb device includes a vocal sound receiver, a sound...
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7218747 |
Externally ported loudspeaker enclosure
An externally ported speaker enclosure includes a primary enclosure having a port or opening. The primary enclosure may continuously vary from a first dimension to a dimension of the port or...
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7212644 |
Resonant frequency adjustment using tunable damping rods
A mechanical device is tuned using a tunable damping rod. The tunable damping rod can have its tension increased between its respective engines, to in order to increase the resonant frequency of...
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7156201 |
Ultrasonic rod waveguide-radiator
The present invention comprises an ultrasonic resonant rod waveguide-radiator with at least three cylindrical sections, one of which is an entrance section having a planar entrance surface and...
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7142680 |
Multiple waveguide coaxial ceiling loudspeaker
A flush mountable ceiling speaker ( 10 ) with individual coaxial waveguides ( 20, 22 ) for both the lower and high-frequency transducers ( 11, 12 ). The lower frequency radiation is combined with...
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7116795 |
Self-aligning self-sealing high-fidelity portable speaker and system
In one embodiment, the present invention provides a portable speaker including a speaker driver, a first cylindrical ring coupled to the speaker driver, a base plate configured in parallel with the...
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7111706 |
Enclosure and audio-visual apparatus comprising same
The acoustic enclosure comprises a box, on which is mounted at least one electro-acoustic transducer, and a vent which together with the box produces a bass-reflex system with a specified...
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7103193 |
Bandpass woofer enclosure with multiple acoustic fibers
A bandpass loudspeaker enclosure having three sub chambers, a first subchamber being a Helmholtz-reflex chamber with a passive acoustic radiator operating in parallel with the transducer, and the...
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7096048 |
Portable communications device
A portable communications device having a base that can be worn on the user's wrist, a wireless earpiece that can be concealed when worn, and a novel audio link that allows the earpiece to...
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7039212 |
Weather resistant porting
A port for a loudspeaker is disclosed which is sufficiently weather resistant for long term outdoor use and which prevents debris, insects and other vermin from entering the loudspeaker and which...
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7027605 |
Mid-range loudspeaker
A midrange loudspeaker for operation in conjunction with low-frequency and high-frequency loudspeaker modules in a theater sound system, having a reduced depth for deployment in limited space. The...
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7011178 |
Sound transmitter and speaker
A sound transmitter includes at least a vibrating membrane mounted on the wall of an enclosure so that one surface of the speaker membrane radiates in the enclosure, the enclosure being provided...
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7010138 |
Loudspeakers
A loudspeaker comprising a phase uncorrelated diffuse sound source and a duct or wave guide coupled to the sound source to direct acoustic energy from the source, the duct or wave guide having a...
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6973994 |
Apparatus for increasing the quality of sound from an acoustic source
An apparatus for increasing the quality of sound from an acoustic source comprises in one embodiment a hollow enclosure, an acoustic source, an acoustic guide, a pair of acoustic inlet openings, a...
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6955241 |
Speaker unit for low frequency reproduction
The invention provides a speaker unit for low frequency reproduction wherein distortion is reduced and the orientation of a sound image of the lower side frequency region is augmented. To that end,...
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6859543 |
Speaker system and method for making the same
A speaker system and related method for making the same include a rigid, cylindrically shaped body member with opposite ends and a hollow interior which defines a sound chamber. A base is connected...
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6831984 |
Noise reducing
A module adapted for use in a noise reduction headset earcup has an enclosure having walls separating an interior of the enclosure from an exterior of the enclosure outside the earcup. There is a...
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6801633 |
Subwoofer assembly
A subwoofer assembly for use within an aircraft including a fuselage having a passenger platform, wherein the passenger platform includes an aisle and a seating area. The subwoofer assembly is...
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6771787 |
Waveguide electroacoustical transducing
A waveguide system for radiating sound waves. The system includes a low loss waveguide for transmitting sound waves, having walls are tapered so that said crosssectional area of the exit end is...
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6756883 |
Extra loud low frequency acoustical alarm assembly
The invention is an improved piezoelectric noise-making and audible signaling device which produces a distinctive 2 KHz tone that is more pronounced and significantly easier to perceive, especially...
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6751330 |
Speaker system
A driver unit is fixed to a stand. A front box and a rear box are directly fitted to the stand through a buffer material. A box comes into contact with the driver unit through a buffer material and...
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6735320 |
Angled port loudspeaker
A loudspeaker comprises an enclosure including a bottom wall, a front wall extending upwardly from the bottom wall, and a rear wall extending upwardly from the bottom wall and opposite the front...
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6711274 |
Compound speaker for a portable communication device
A compound speaker has first and second sound production devices provided in a case. First and second sound discharge holes are formed in the case for discharging sounds produced by the first and...
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6700984 |
Non-linearly tapering transmission line speakers
A nonlinearly tapering transmission line loudspeaker enclosure comprised of a waveguide whose cross sectional area is largest near the loudspeaker driver, and smallest at the terminal end. The...
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6681023 |
Radial pickup microphone enclosure
A sound pressure waveguide consisting of an input acoustic channel, a compression zone and exit channel with an optional termination baffle. The shape and length of the waveguides are varied to...
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6681022 |
Two-way communication earpiece
The two-way communication earpiece is a small, inconspicious, and comfortable earpiece which fits behind the ear for sound delivery and pickup. The earpiece may be used with a variety of...
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6636750 |
Speakerphone accessory for a portable telephone
A speakerphone accessory ( 100 ) is provided for use with a portable telephone ( 102 ). The speakerphone accessory ( 100 ) has a high-level speaker assembly ( 222 ) that includes a transducer ( 500...
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6628790 |
Apparatus for on-ear operation and off-ear operation with two sound reproduction transducers
In an adapted to be used in an on-ear mode and in an off-ear mode a holder compartment ( 6 )accommodates a first transducer ( 20 )and a second transducer ( 25 )and the holder compartment ( 6 )is...
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6574344 |
Directional horn speaker system
A directional speaker system includes an enclosure having an inner surface, an outer surface, an open end, and a closed end, a speaker driver directed toward the open end and mounted near the...
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6522759 |
Speaker
A reduced-size speaker for generating sound waves in wide low frequency audio region includes a cylindrical main body which is open at the top and bottom surfaces, a top lid being provided on the...
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6438246 |
Speaker apparatus
A speaker apparatus, in which sound wave is uniformly radiated to front and rear sides thereof, to prevent distortion of sound due to one way vibration. The speaker apparatus includes a bobbin to...
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6411720 |
Speaker systems with lower frequency of resonance
Speaker systems with lower frequency of resonance have a short air passage in a cabient from the speakers or drivers to an air passage exit. Teh resulting column of air lowers the resonant...
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6278789 |
Frequency selective acoustic waveguide damping
An acoustic waveguide loudspeaker system has an electroacoustical transducer having a vibratile surface. An acoustic waveguide has a first end open and a second end adjacent to the vibratile...
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6222929 |
Speaker having middle-high sound speakers
A speaker apparatus, in which a middle-high frequency speaker is disposed forward of a low frequency speaker. First and second sound guiding member are disposed in front of the low frequency...
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6212284 |
Sound reproduction device
According to the invention, a bass reproduction device is disclosed, with which the sound emission from the membrane (15) to the listening space (38) is carried out solely by way of a displacement...
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