Abstract: A portable computer includes a speaker device and a first casing. The speaker device includes a speaker main body and a speaker housing for housing the speaker main body. The first casing has a bottom wall. The bottom wall has swelling portion which swells outward and contains at least part of the speaker housing.

Abstract: Sintered elements for use in hazardous areas comprise a first flame path having a first length and a first pore size, and a second flame path having a second length and a second pore size. The second length is greater than the first length and the second pore size is greater than the first pore size. Sounders and loud speakers for use in hazardous areas comprise a housing having a horn and a rear enclosure, a driver assembly, and a sintered element.

Abstract: A sound enhancement module includes a set of walls that define an enclosed chamber, an aperture in one of the walls to provide a path for audio waves to travel between the enclosed chamber and an external space and an alternative density transmission medium positioned in the enclosed chamber.

Abstract: Embodiments include an acoustic source for use in a hemi-anechoic chamber comprising a source assembly and a waveguide assembly for producing sound outside of a measurement hemisphere and channeling the sound into the measurement hemisphere. A waveguide end from which sound emanates is positioned close to the reflecting plane of the chamber and can approximate a point source.

Abstract: A speaker assembly for a structural pole is provided, as well as a method for attaching a speaker assembly to a structural pole. The speaker assembly is provided with an elongated housing mounted to banner brackets that are fixed to the structural pole. The housing is sized to provide an aesthetic appearance that corresponds to a banner attached to the banner brackets. A speaker, or a plurality of speakers are provided within the housing for transmitting acoustic vibrations to a corresponding environment.

Abstract: Recessed section is formed in the rear surface of a speaker box body with a speaker mounted to the inner front surface of the body box. Circuit unit, such as a mixer, including operators is removably accommodated in the recessed section. There is also provided a retention structure for retaining the accommodated circuit unit in the recessed section. When the speaker is to be used, for example, the circuit unit can be removed from the speaker box body and placed near a human player, so that the human player is allowed to, for example, readily operate the operators of the circuit unit. The recessed section may be covered with a lid, in which case speaker-related accessories can be stored in the recessed section.

Abstract: A self-draining grill and system incorporating the same. The grill includes a plurality of ribs extending from a surface of a housing and angled downward in a direction across the surface of the housing. One or more openings are disposed between the ribs and allow air flow to a sound generation device.

Abstract: An apparatus includes an acoustic device comprising a waveguide having a sound opening at one end facing a space, an audio source, an acoustic driver at another end of the waveguide, the acoustic driver facing a listening area, and structure supporting the acoustic device, the audio source, and the acoustic driver, as an integrated audio system, the acoustic driver and the opening in the waveguide facing in substantially different directions from the structure.

Abstract: A loudspeaker for acoustic enclosure, in particular a tweeter or a medium-frequency loudspeaker, which consists of a spherical diaphragm with direct radiation, with a front side that is concave in relation to the spool, and onto which is attached at a certain level, for example at mid-height or approximately at mid-height, the moving spool so as to achieve an optimal mechanical coupling capable of reproducing frequencies lower than 1 kHz with a high efficiency. Material such as pure beryllium or a Be/Al alloy or similar alloys is used to make the diaphragm. Loudspeakers of the tweeter or medium type, especially for very high-fidelity acoustic enclosures.

Abstract: An improved Helmholz resonator loudspeaker that may be truncated on one or both ends. The bass pipe is brought partially or completely to extend outside the enclosure, leading to improved efficiency in reproducing lower frequencies. The extended bass pipe may be utilized as part of the mounting structure for the loudspeaker on a base, or may be given an ornamental function.

Abstract: An image display module include a flat panel display, a sound source element disposed on a rear surface side opposite to a display observation side of the panel display, and a sound leading path through which a sound wave generated from the sound source element is led to the display observation side.

Abstract: An acoustic waveguide system contains a trunk waveguide and a number of branch waveguides. The trunk waveguide section defines an interior passage and includes at least one open end. A number of branch waveguide sections define an interior passage and include a junction end and a terminal end, with the junction end coupled to the trunk waveguide. One or more cavities can be coupled to at least one of the trunk or branch sections and communicate therewith through a vent for damping the resonance peak of a target standing wave.

Abstract: A loudspeaker enclosure having a folded duct formed by an adjoining pair of the enclosure's panels and a pair of diagonally mounted internal panels. For example, at a lower left corner of the enclosure, a triangular first portion of the folded duct extends inward from a triangular hole in the front panel toward the back panel and is formed by the left panel, the bottom panel, and a first internal duct panel; and a trapezoidal second portion of the folded duct extends in the opposite direction and is formed by the left panel, the bottom panel, the first internal duct panel, and a second internal duct panel. The first internal duct panel is coupled to the front panel but ends short of the back panel to form the fold connecting the first and second portions of the folded duct, and the second internal duct panel is coupled to the back panel but ends short of the front panel to connect the folded duct with the enclosed air volume of the enclosure.

Abstract: A low frequency exponential bass horn enclosure suitable for use in a front-loaded or rear-loaded configuration, intended for corner placement, with driver access from the back. The unitary horn pathway exhausts upward along the dihedral axis formed by the vertical walls of the corner and the ungular form of the triangle-based enclosure.

Abstract: A portable electronic device (200) includes a casing (20) containing a speaker set (30) therein and defines a vent (232) therein. The speaker set includes a hollow shell (40) having a first partition wall (451), and a loudspeaker (50). The first partition wall divides an inner space of the shell into a first resonance chamber (47) and a second resonance chamber (49). The first resonance chamber communicates with the second resonance chamber via a communicating port (452). The second chamber communicates with a surrounding environment via a sound propagation port (432) defined in the shell. The sound propagation port communicates with the vent of the casing. The loudspeaker is accommodated in the shell, and acoustically couples with the first resonance chamber.

Abstract: A method of mounting a speaker enclosure for a ceiling or wall mounted speaker which includes the selection of a flexible polymer speaker housing forming a hollow chamber having a speaker opening therein and being collapsible to a smaller size. A hole is cut into a building, ceiling or interior wall and a selected speaker housing is collapsed to a size to fit through the speaker opening in one side of a ceiling or wall. The collapsed flexible polymer speaker housing is then expanded on the other side of the ceiling or wall and attached to the ceiling or wall with an adhesive or the like adjacent the opening and a speaker attached to the ceiling or wall opening.

Abstract: 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 rear-loaded configuration by the use of interchangeable parts, with driver access from the front. Intended for corner placement, however, fully enclosed horn channel allows for floor use. The axially-centered throat expands vertically, exhausts rearward, and is bifurcated at the back of the enclosure with two hard reflection points, comprising a single fold, in which the vertically arranged horn terminus exhausts with a forward-canted splay angle around a partially rectangular back chamber.

Abstract: A portable computer includes a speaker device and a first casing. The speaker device includes a speaker main body and a speaker housing for housing the speaker main body. The first casing has a bottom wall. The bottom wall has swelling portion which swells outward and contains at least part of the speaker housing.

Abstract: An acoustic diaphragm includes a diaphragm formed of a uniform material and a first standing wave suppression member provided on a surface of the diaphragm along a first direction of passing through a center of the diaphragm.

Abstract: A speaker cabinet includes a cabinet having a side board to which a speaker driver can be fixed, a substantially cylindrical tube which is inserted into the cabinet such that a vertical line passing through the center of gravity of a horizontal plane of the cabinet coincides with the axis of the substantially cylindrical tube and which is in contact with the base board and the top board of the cabinet, and a support rod which is inserted into the substantially cylindrical tube through a through-hole formed in the base board of the cabinet and which supports the top board of the cabinet at the upper end portion of the support rod such that the cabinet undulates so as to move like a see-saw.

Abstract: An improvement is provided in loudspeaker enclosures characterised by a frequency response having at least one null due to a cavity mode. The improvement comprises introducing an aperture at a high pressure region of said enclosure for provided a pressure leak thereby substantially eliminating said at least one null.

Abstract: A surround for supporting a diaphragm used to create acoustic waves includes a rib section extending away from the diaphragm and a membrane section that is supported by the rib section. The membrane section has a thickness in a direction substantially normal to opposing top and bottom surfaces of the membrane section which is substantially thinner than a thickness of the rib section in a direction substantially normal to opposing top and bottom surfaces of the rib section. A restoring force returning the diaphragm to a home position is contributed to more due to deformation of the rib section than to deformation of the membrane section.

Abstract: An acoustic enclosure such as a loudspeaker (10) uses within the cabinet adsorbent material, and/or containment means (22) for the adsorbent material, which is at least partially hydrophobic. Preferably, the material is activated carbon treated to provide it with hydrophobic properties. Preferably, the adsorbent material is treated with a silicon-containing compound. This improves the acoustic compliance of the acoustic enclosure.

Abstract: A speaker unit includes first and second drivers carried by first and second enclosures. A first linkage supports the second driver enclosure relative to the first driver enclosure and provides at least two positional degrees of freedom of movement of the second driver enclosure relative to the first driver enclosure.

Abstract: An acoustic chamber as part of adapter for an appliance. The acoustic chamber is substantially enclosed except at the exterior surface, and is configured to interchangeably receive a plurality of different consumer electronic devices.

Abstract: A portable terminal apparatus with a telephone function such as a portable telephone, for efficiently emitting a voice from a speaker from both a front face and a backside of a housing. The portable terminal has: a first cover that includes a first sound outlet for emitting a sound from the speaker through the front of the portable terminal apparatus; a second cover that includes a second sound outlet for emitting a sound from the speaker through the back of the portable terminal apparatus; and a gasket accommodated at a position sandwiched between the first cover and the speaker.

Abstract: The present invention relates to speakers and, more particularly, to a speaker sound system, characterized in that the speaker, mounted on a speaker housing constituting a sound emission apparatus, has a guide cover to guide sound radiating from the back of the speaker forwards when the sound is output both forwards and backwards because of fluctuations of a cone of the speaker due to electrical signals, that is integrally attached to the surface of the speaker, thereby providing vivid high-fidelity sound.

Abstract: This invention provides an enclosure for a speaker, wherein the enclosure comprises a means for attachment to an article of luggage, and wherein the enclosure is (i) composed of a suitable acoustic material and (ii) is flexible. This invention further provides a carrying case comprising a manually removable enclosure for a speaker, which enclosure comprises a means for attachment to the carrying case and is (i) composed of a suitable acoustic material and (ii) is flexible.

Abstract: In a process for producing a loudspeaker diaphragm, pulp is deposited on a paper-making mold in the presence of vortex stream of water having pulp dispersed therein in a paper-making bath. Pulp is deposited on the paper-making mold while at least the water having pulp dispersed therein is rotated by the vortex stream in the paper-making bath. Consequently, variation of pulp fiber orientation is suppressed, and a loudspeaker diaphragm with high reproducibility and stable quality is produced with a high productivity.

Abstract: A satellite speaker system includes a side firing low mid driver mounted in a sub-enclosure which is vented into a second sub-enclosure through an acoustic resistance vent and to a third sub-enclosure through a variable aperture second vent. The vents further serve as pivots to allow the side-firing speaker to be rotated through a predetermined range, simultaneously varying the aperture of the second vent. The pivots are isolated by o-rings to provide an airtight seal to the sub-enclosures, as well as to provide vibration control. Third, fourth and fifth resistively damped vents allow the first and second sub-enclosure to establish acoustic communication with the environment. The front firing driver/s that reproduces the mid and high frequencies are mounted in a fourth sub-enclosure.

Abstract: An audio system includes a housing which has at least one port, at least one speaker driver with a diaphragm located in the housing, a tube made of one or more thermally conductive materials and having at least two openings, and at least one electronic component which is thermally coupled to the tube. The tube is at least partially located in the housing with one of the openings of the tube at least adjacent to the port of the housing. Movement of the diaphragm helps move air into and out of the tube to dissipate heat.

Abstract: A frame for a speaker device includes a magnetic circuit housing unit which houses a magnetic circuit, a substantially annular outer peripheral portion which is arranged on an outer side of the magnetic circuit housing unit, and plural arm portions which connect the magnetic circuit housing unit and the outer peripheral portion. Each of the plural arm portions has a sectional shape of a one-open-end shape having a connected end and an open end, and the plural arm portions include an arm portion having the open end oriented to one direction and an arm portion having the open end oriented to a direction opposite to the one direction.

Abstract: A rigging system for angularly adjusting the output portions of a plurality of loudspeaker cabinets wherein each of the cabinets includes a pair of rotatably adjustable rigging disks which protrude outwardly thereof which are selectively receivable within an adjacent cabinet. Each cabinet has a first locking element for securing the disks therein with respect thereto and second locking element or elements for selectively securing protruding portions of disks of an adjacent cabinet whereby an angle of the output portions of each cabinet may be adjusted from substantially a planar orientation to a curved orientation to thereby change the overall wavefront characteristics of sound issuing from a vertical array of attached loudspeaker cabinets.

Abstract: A flexible multiple speaker support apparatus is provided for supporting a plurality of speakers therein and includes a flexible, hollow speaker support unit which includes a plurality of open, sound emission channels. The speakers are housed within the flexible, hollow speaker support unit, and the speakers are placed in registration with the open, sound emission channels. With one embodiment of the invention, the flexible, hollow speaker support unit includes a flexible, tubular speaker support member, and the flexible, tubular speaker support member includes a plurality of the open, sound emission channels. The speakers are placed in registration with the open, sound emission channels. With another embodiment of the invention, a suspension bracket assembly is connected to the flexible, hollow speaker support unit for supporting the flexible, hollow speaker support unit in a desired orientation from a ceiling, wall or other surface.

Abstract: Disclosed is a speaker cabinet, which includes a cabinet body, a face panel, which is fixedly provided at the front side of the cabinet body to hold a speaker and has a cross section greater than the cabinet body, and a bracket formed of a curved tube and pivoted with two distal ends thereof to the bottom ends of the two opposite lateral sidewalls of the face panel for use as a support to support the speaker cabinet on the floor or a handle for carrying by hand or a hanger for hanging the speaker cabinet on a tree or the wall.

Abstract: A rigging system includes a lever arm permitting all speakers supported by the speaker whose rigging is adjusted to be angularly reoriented to focus the system, even out the coverage and fine tune the coverage. Multiple pivot attachment points for the moment arm are provided to enable an enhancement of the angular adjustment provided. A dozen or more angular positions can be provided for the lever arm to facilitate the trial-and-error method of optimizing the sound quality within the house.

Abstract: A speaker apparatus is a bass-reflex type woofer used in a speaker system, and includes a body portion for housing a speaker unit and a bass-reflex port mounted and fixed in the body portion. Further, in the speaker apparatus, a protrusion for temporarily fastening the bass-reflex port in the case of mounting and fixing the bass-reflex port is provided in the body portion.

Abstract: A low frequency exponential/hyperbolic hybrid folded horn enclosure intended for use in proximity with at least one planar surface, such as a floor, ceiling, or wall, with access to the horn throat from the top of the enclosure. The horn is bifurcated at the throat and folds horizontally around a central trapezoid-shaped vertical back chamber which is reflex ported for enhanced low frequency response below the frequency cutoff of the horn. The back chamber outer sides define part of the horn channel, resulting in a relatively simple structure with a small footprint and no void internal space. The throat exponential expansion cross-sectional area is consistently maintained while the proportions of the throat channels are elongated to the height of the enclosure.

Abstract: A surround sound system and method involving a surround sound tower (10) having planar speakers (11b); a base plate (20); and a structure for positioning (30) the surround sound tower on the base plate (20), the surround sound tower (10) being mounted on, and normal to, the positioning structure (30) for customizing sound direction and constructive interference patterns by interactively positioning the sound tower (10) and by modular usage of both sub-woofers (12a) and tweeters (13a), economizing floor space, especially in a home theater environment, the positioning structure (30) having a structure for indicating an angular rotation (40) of the surround sound tower (10) relative to the base plate (20) and a structure for facilitating rotation (50) of the angular rotation indicating structure (40).

Abstract: A speaker includes a housing; a support assembly installed on the lower end of the housing to support the housing; at least one first speaker unit installed in the housing to reproduce a sound signal; and a second speaker unit installed in the support assembly to reproduce a sound signal which belongs to a low sound band. Openings are defined through both sides of the support assembly to transmit to the outside sound reproduced by the second speaker unit. A guide cone is provided to the lower end of the support assembly to guide sound toward the openings. The speaker unit can be installed in a baffle which is supported at the opened front end of the housing to be rotated about a vertical axis. Through rotating the baffle, the speaker unit can be actually rotated within a predetermined range to change a sound transmission direction.

Abstract: A microphone assembly fitted to a panel of a vehicle-mounted control module, provided with a housing for housing a microphone and having an opening section on a surface facing the panel, and a holding case for holding the housing so as to be capable of pivoting, and when inserted into a receptacle provided in the panel the housing pivots so as to seal the opening section to the panel.

Abstract: An acoustic impedance matching enclosure is provided having a driver loaded into a chamber buffering the throat/mouth of a closed loop transmission line. Transmission line consists of a termination member, outer and inner enclosure walls, high-density lining and throat/mouth area. Transmission line eliminates internal random standing waves while providing variable-frequency standing waves that through superposition of the waves compensates for mass-acceleration loss of the high-end of the driver output while damping the resonance of the driver. Alternative application of the acoustic impedance matching enclosure is that of compression loading the driver directly into the closed loop transmission line and using an acoustic low pass filter to translate the output into low frequencies only through a port.

Abstract: The invention provides a loudspeaker system having a housing made of a plastic casing and a foam positioned against the interior walls of the casing through a reaction between the foam and the interior wall. The foam increases the stiffness of the walls as well as provides sound damping. Additionally, the foam may create a foam rib between a stud and the casing to support the stud and transfer the stiffness of the stud to a wall of the casing.

Abstract: A surround sound system and method involving a surround sound tower; a base plate; and a structure for positioning the surround sound tower on the base plate, the surround sound tower being mounted on, and normal to, the positioning structure for customizing sound direction and constructive interference patterns by interactively positioning the sound tower and/or at least one sound tower and by modular usage of tweeters, economizing floor space, especially in a home theater environment. The positioning structure may have a structure for indicating an angular rotation of the surround sound tower relative to the base plate and a structure for facilitating rotation of the angular rotation indicating structure.

Abstract: A seatback audio system having one or more speakers mounted in a surface of a seatback or a headrest. The speakers may be separated by a sound barrier to reduce cross-talk between the speakers. The surface may have a concave area where the speakers and the sound barrier are mounted. Alternatively, the surface may have two concave areas, and one speaker may be mounted in each concave area. The system may include a manual or an automated positioning system for one or both of the speakers. The system may also include a soft-cell waveguide having a plurality of tubes to direct the sound from one or both of the speakers. The seatback may include a backrest and a removable headrest, each including an electrical connector, where the one or more speakers are mounted to the headrest and the electrical connectors form a circuit when the headrest is mounted to the backrest.

Abstract: 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 pair of acoustic exit openings, and pair of acoustic paths, wherein the acoustic inlet openings separate acoustic waves from the acoustic source and direct the acoustic waves the length of the acoustic paths to the acoustic exit openings in such a manner as to increase the quality of sound, and especially bass sound, from the acoustic source.

Abstract: A sound collecting device is provided which is designed to minimize adverse effects on an output caused by exposure of an electroacoustic transducer to the air. The device includes an electroacoustic transducer and a vibrating circuit. The transducer is exposed to the air and responsive to input of a sound wave to produce a corresponding acoustic signal. The vibrating circuit vibrates the transducer to shake foreign substances such as dust or drops of water from the transducer. In a modified form, an electromagnetic sensor is provided which measures an electromagnetic noise transmitted to the transducer and which removes the electromagnetic noise from an output of the transducer to produce a noiseless acoustic signal.

Abstract: An arrangement fastens a loudspeaker covered by a loudspeaker screen to a covering part of a vehicle. The covering part has a recess adjacent to the loudspeaker. The loudspeaker screen and a holding part are mutually connected by fastening screws, and are locally supported on opposite sides of the covering part. Several mutually spaced domes are arranged on and projecting away from the loudspeaker screen to penetrate openings constructed at the covering part. Either the holding part or the loudspeaker is fitted onto the free end of each dome projecting over the covering part and being held in position thereon by a screwed-in fastening screw.

Abstract: A pair of matched monaural speakers are added inside conventional left and right stereo speaker housings so that the left, right and flat panel monitor appear joined in a seamless aesthetic effect. The added speakers are provided with center channel monaural sound, making it appear as though such sound emanates from the center of the monitor, thereby enhancing home theater impact to provide stereo and center channel sound from each left and right speaker housing.

Abstract: An embedded multimedia speaker structure includes a five-facet housing having a same dimension as that of a 5-and-¼-inch disk drive; a recess disposed at a bottom center portion of the housing; a bass speaker disposed at the recess and having a bell thereof facing downward; a circuit board having play function disposed at an rear end of an interior of the housing and for controlling sounds; a panel enclosing a front end of the housing, and having a speaker provided at two sides thereof, respectively; and two sound guide tubes having an end thereof connected to a rear end of the speakers, respectively, and the other end thereof arranged to an exterior of the housing, respectively. Using the aforesaid structure, a multimedia speaker is assembled for disposing within a 5-and-¼-inch disk drive housing.