Abstract: A trim panel (10) includes an integrally formed attachment member (14) for mounting an acoustic device (16), such as a loudspeaker, an exciter, a piezoelectric transducer, or the like, directly to the trim panel (10) without the need of a separate mounting member. The acoustic device (16) is attached to the trim panel (10) by use a twist and lock fastening feature (18) in the form of a ramp surface (24) that draws the acoustic device (16) toward the trim panel (10) as the acoustic device (16) is rotated about the attachment member (14). Once the acoustic device (16) is rotated into place, one or more detents (26) are provided on the trim panel (10) and one or more corresponding detent grooves or recesses (32) are provided on the acoustic device (16) to lock the acoustic device (16) securely in place. The integrally formed attachment member (14) enables the inner and outer surfaces (11, 12) of the trim panel (10) to be a generally continuous surface.

Abstract: The invention provides, in one aspect, a loudspeaker that has electrodynamically-driven piston mounted in one external wall and that has movable panels in one or more other external walls. Those panels are air-coupled to the piston, e.g., via air within the enclosure, such that vibrational motion of the piston causes the vibration of the panels, thereby, improving the overall air coupling of the piston to the external environment, e.g., the listening room. Further aspects of the invention provide an improved driver for use, e.g., in the aforementioned loudspeaker. The driver comprises a three-part piston having first and second diaphragms coupled back-to-back with one another and having a voice coil face-mounted (or front-mounted) within the second diaphragm.

Abstract: Outputs of a laser and an inclinometer are used to figure adjustments to a sound producing device's position, where both the laser beam of the laser and an output from the inclinometer characterize a general direction of sound produced by the sound producing device. The laser beam can be one or more colors or patterns each characterizing the general direction of sound produced by the sound producing device. A stadium can have many speaker housings each including a speaker, the laser, and the inclinometer. Each speaker housing is mounted on, and remotely adjustable with respect to, an structural member as to general direction of sound emitted from the speaker housing into the area for stadium seating. The inclinometer's output can be rendered by a monitor seen by an audio engineer who also uses the laser beam's direction to make adjustments to the position of the speaker housing relative to its structural member.

Abstract: An external acoustic chamber (220) for attachment to a mobile device (200) is provided. The external acoustic chamber (220) optimizes the audio performance of the mobile device (200) thus reducing the need for signal equalization and/or hardware to amplify the sound signal. The mobile device (200) includes a loudspeaker (205) and a first acoustic chamber (207) acoustically coupled to the loudspeaker (205). The external acoustic chamber (220) comprises at feast a second acoustic chamber (222) which penetrates the first acoustic chamber (207) adding volume to the first acoustic chamber (207). The combined greater volume reduces the dampening of loudspeaker (205) caused by the pressure in the first acoustic chamber (207). The result is an improvement in the frequency response of loudspeaker (205) approaching the natural frequency response of loudspeaker (205).

Abstract: A speaker device includes a vibration system having a frame and a magnetic circuit. The frame has a magnetic circuit housing unit, an outer peripheral portion having an annular shape arranged on the outer side thereof, and multiple arm parts connecting the magnetic circuit housing unit and outer peripheral portion. Plural flat surfaces to which a cushion is attached are formed on an upper surface of the outer peripheral portion and a lower surface thereof. Each of the flat surfaces on the upper surface of the outer peripheral portion and each of the flat surfaces on the lower surfaces are connected by a corresponding connecting part. The plural flat surfaces to which the cushion member is attached are formed between the outer peripheral wall of the outer peripheral portion and the inner peripheral wall thereof, rather than the outer side of the outer peripheral wall of the outer peripheral portion.

Abstract: A mobile communications terminal is provided which is designed to transmit speech signals and to receive and reproduce speech signals, and which has a speech-reproduction device, wherein improved speech quality is achieved in that the speech-reproduction device has a sound transducer, which is disposed inside a housing of the mobile communications terminal, and at least one sound transmission opening provided in the housing, which forwards the sound generated by the sound transducer to the outside of the mobile communications terminal.

Abstract: A system and a method for mounting a speaker unit (12). The system (12) containing a surface mounting bracket (14) including at least one attaching feature (20) and a speaker unit (12). The speaker unit (12) comprises at least one audio speaker (42) and a semi-circular shaped surface (41). The shaped surface (41) defines a plurality of angularly spaced apart receiving features (44). The plurality of angularly spaced apart receiving features (44) are adapted for removably engaging said at least one attaching feature (20). In another embodiment, a speaker mounting system (10) contains a detachable base stand (60) having at least one base attaching feature (62) and a speaker unit (12) defines a plurality of angularly spaced apart receiving features (44). The plurality of angularly spaced apart receiving features (44) are adapted for removably engaging said at least one base attaching feature (62).

Abstract: Systems and techniques to simply, easily and quickly attache and detach a speaker to a mounting location. A speaker bracket can provide a pivot point for the speaker that also serves as an audio signal connection point. The speaker bracket can be built in a robust fashion and can include a receptacle that is mounted on a surface, such as an indoor or outdoor wall, on the side of a pool or spa, or in any other suitable location. The speaker bracket can also include a support that can be attached and detached from the receptacle. When attached, the support rotates about the receptacle via a pivot point. A positioning mechanism can be included that allows the support to be removably fixed or locked into a desired position relative to the receptacle.

Abstract: A dual purpose loudspeaker incorporating at least two audio signal inputs and at least one switch is adapted to receive and reproduce either a single audio signal input or two audio signal inputs according to the position of the switch. A switch slide mechanically linked to the switch is provided which blocks one of the audio signal inputs when the switch is in the single-channel position, thereby preventing erroneous connection to the blocked audio signal input.

Abstract: A button apparatus with a speaker (100) has a frame (104), a speaker (108), a flexible PCB (110), a metal dome (114), a rubber layer (116), and an operating button (120,124). The frame has a cavity (106) and the speaker is securely received in the cavity. The flexible PCB is located on the frame. The metal dome is located on the flexible PCB, and adapted to electrically connect with the flexible PCB. The rubber layer is located on the flexible PCB. The rubber layer has a protrusion (118) to press the metal dome so that the metal dome is electrically coupling to the flexible PCB. The operating button is located on the rubber layer. The button is adapted to press the protrusion, which in turn presses the metal dome.

Abstract: A speaker system having intelligence for communication with the amplifier. The speaker system contains a communications module that transmits information across the connection between the speaker system and the amplifier with regard to the speaker characteristics. The communications module may be powered by a rectifier that derives power from a high frequency carrier signal passed to it by a high-pass filter. The method of operating the speaker generates a carrier signal and powers the communications module using the carrier signal. The communications module transmits information to the amplifier so long as the carrier signal is present and shuts down when the carrier signal is no longer present. An optional step includes allowing communication to the speaker system from the amplifier.

Abstract: An electronics device (100), for example, a cellular telephone, includes a plurality of discrete transducers, one of which is a dynamic loudspeaker device (162) and the other being a linear vibrating device (164). In another embodiment, two or more linear vibrators within device housing are driven with signals having different frequency and/or time variant characteristics to provide different sensory effects for the user.

Abstract: An audio speaker with a distinctive light assembly is disclosed. The light assembly uses a light disk and a cover to create the effect that an observer is being followed by a ray of light produced by the light assembly. This effect can also be experienced by multiple observers located at different positions about the light assembly.

Abstract: A coding scheme for digital audio signals. A method of coding a unary digital audio signal is provided for compressing a set of unary digital audio signal data comprising a succession of absolute amplitude values associated with respective sample periods of the digital audio signal, the absolute amplitude values being integers of positive or zero value, representing the number of speaker elements of a unary digital loudspeaker that are to be active in a sample period. The data is compressed by calculating the numerical difference between adjacent ones of the absolute amplitude values, thereby to convert the succession of absolute amplitude values into a corresponding succession of difference amplitude values. Each difference amplitude values is expressed as a sign bit and a plurality of data bits, representing the change in the number of speaker elements of a unary digital loudspeaker that are to be active in a given sample period relative to the immediately preceding sample period.

Abstract: Loudspeaker mounting apparatus that permits mounting of a loudspeaker at an angle to a mounting surface. In one embodiment the apparatus comprises an assembly that includes a frame member that is flush mountable in a cutout in the mounting surface. The frame member includes an angled flange that is employed for the mounting of a cooperative baffle. The front of the baffle is recessed behind the mounting surface to permit a flush speaker installation. The baffle mounts to the angled flange of the frame member in one of two possible predetermined orientiations so as to disperse sound around a centerline that is either oriented normal to the mounting surface or at a predetermined angle from normal corresponding to the degree of angle incorporated into the frame and baffle assembly.

Abstract: An earplug type earphone without impulse noise and surroundings blockade includes an earphone housing having a sound chamber inside thereof and a loudspeaker mounted therein, wherein a plurality of sound outlet meshes is provided on the front end of the earphone housing. A proper distance is given between the front end of the earphone housing and the loudspeaker mounted therein. A plurality of sound inlet meshes is provided on and encircled the earphone housing within the proper distance. The lower impulse noise output end with respect to two output ends of the loudspeaker is arranged to face to the sound outlet meshes. Therefore, the earphone can prevent not only the impulse noise directly impact to the middle ear but also the damage of the middle ear and the cause of conductive hearing loss.

Abstract: A speaker assembly a speaker assembly that is readily mounted and dismounted from a mounting bar, and which also achieves reliable electrical connection in the same mounting connection. To mount the speaker, one pulls a plunger pin out, inserts a mounting boss into a swivel mount, and releases the plunger pin to lock the speaker onto the swivel mount. This action also inserts a jack into a receptacle, and completes the electrical connection of the speaker to the music source. The speaker is then rotated to the desired position and fixed in place by tightening a thumb screw.

Abstract: A loudspeaker display turntable comprising a horizontally rotary turntable, which is large enough to carry multiple loudspeakers, and the rotation of the platform is motorized and has sensor and control mechanisms to allow operator to control its rotation, that is to rotate and stop each loudspeaker it carrys at a desired location.

Abstract: The invention relates to radio-electronics, in particular to audible warning devices. In order to enlarge the functional possibilities, the inventive sound-reproduction support is provided with a sensor for measuring the weight of a vessel, a coding block, and an event detecting block arranged inside its housing.

Abstract: An attached audio equipment system having attachment mechanisms and locating components. The attachment mechanisms and locating components being integral with the audio equipment to provide an improved transportable audio equipment system.

Abstract: A mobile communications terminal is provided which is designed to transmit speech signals and to receive and reproduce speech signals, and which has a speech-reproduction device, wherein improved speech quality is achieved in that the speech-reproduction device has a sound transducer, which is disposed inside a housing of the mobile communications terminal, and at least one sound transmission opening provided in the housing, which forwards the sound generated by the sound transducer to the outside of the mobile communications terminal.

Abstract: An internal subwoofer apparatus is provided for mounting within a computer system. The computer system is a multi-media computer system that processes visual and audio recording and playback. The central processing unit box typically includes the motherboard on which is mounted the main central processing unit as well as any ancillary processing chips needed for the computer system. The computer system also includes memory modules such as short term memory, long term memory storage in the form of hard disk drives or removable floppy disk drive systems, as well as long term disk storage systems, such as CD-ROM systems. User input to the computer system is provided by either a keyboard and optionally a pointing device, such as a mouse or track ball. A monitor that displays video signals is provided in addition to the internal subwoofer apparatus and the audio system includes a pair of satellite speakers serving as a first channel and a second channel.

Abstract: This invention provides a speaker assembly for particular use in conjunction with lap-top computers or similar. Adjacent housing portions are provided to contain speakers and are interconnected so that the housings may be movable between a co-planar position and a non co-planar position. The non co-planar position allows the speakers in adjacent housings to have some focusing of the sound propagating from the speakers to provide enhanced performance despite the relatively small thin nature of the speakers provided in each housing. When in the non co-planar configuration, the front faces of the housings provide a concave overall appearance to the speaker assembly towards the user and help support each other against overturning.

Abstract: A low profile loudspeaker assembly is disclosed. The loudspeaker assembly includes a housing in which at least one driver is mounted. The housing includes a first aperture and a second aperture wherein the first and second apertures are on opposite sides of the housing. The driver includes a cone coupled to a driver magnet assembly for generating sound. The cone is aligned with the first aperture to permit the direct passage of sound from the loudspeaker and the driver magnet assembly is seated within the second aperture exposing a portion of the driver magnet assembly to the exterior of the housing, wherein the depth to which the driver magnet assembly sits within the second aperture facilitates a reduction in the profile of the loudspeaker.

Abstract: An apparatus and method for concealing a loudspeaker, in which frame modules simulating books are juxtaposed for forming a housing for the speaker. The housing appears as a row or stack of books, and the quantity of frame modules or simulated books may be adjusted for accommodating speakers of different widths or heights.

Abstract: A loudspeaker has a digital input signal port connected to a digital interpolator to increase the effective sampling rate whose output is fed to a signal delay and magnitude detector after which the short-term dynamic range of the input signal is possibly reduced before application of a unary encoder which encodes the digital input signal into a plurality of unary signals which are then differentially delayed and pulse shaped before application to a plurality of substantially identical acoustic transducers via transducer drivers whose average power drive levels may be controlled by signals derived from the magnitude detector and from a human operator to alter the sound volume produced.

Abstract: A diaphragm-type bass loudspeaker has a housing (10), the housing walls (13, 14, 15) of which enclose a volume (25) which is formed on the rear side of its diaphragm (3). In a surface area of the housing walls (13, 14, 15) which bounds the volume (25) there is an opening (23).

Abstract: A loudspeaker system includes at least two loudspeaker units. Each loudspeaker unit includes at least one loudspeaker mechanism mounted on a loudspeaker enclosure. The loudspeaker enclosure includes an outer cabinet body having an open front side, a closed rear side, opposed lateral walls, and opposed top and bottom walls, and an inner baffle frame disposed in the cabinet body. The baffle frame has parallel left and right walls that form a sound space in the baffle frame. The left and right walls further form first clearances with the lateral walls respectively, and have a front portion with the loudspeaker mechanism mounted thereon. The front portion cooperates with the lateral walls to form a pair of acoustic port openings at front ends of the first clearances. The left and right walls further have a rear portion that forms a second clearance with the rear side. The second clearance is communicated with and extends between rear ends of the first clearances.

Abstract: A rainproof and omnidirectional loudspeaker system comprises a base set, a plurality of fitting ring sets, at least one speaker, and an upper cover set. The fitting ring sets are stacked together on the base set. The fitting ring sets have a ring cover, which is provided with a through hole and a ring portion. The two adjoining ring covers are provided with a plurality of partitions disposed therebetween. Two partitions are provided with an empty portion located therebetween. The empty portion is shielded by the ring portion of the ring cover. The speaker is mounted in one of the fitting ring sets. The upper cover set is disposed on the topmost fitting ring set. The sound waves produced by the speaker are radiated into air in all directions via the through holes of the fitting ring sets and the empty portions. The ring covers serve to prevent intrusion of rain or foreign objects.

Abstract: An audio speaker is incorporated in a ventilation register having a front grill through which sound generated by the audio speaker is projected, and a back plate to which the audio speaker is secured, spaced apart from the front grill by side plates to form an enclosure adapted to be received in registration with the ventilation duct. The back plate includes at least one and preferably a plurality of ventilation slots offset from and surrounding the audio speaker for communicating an air flow between the front grill and the back plate of the speaker arrangement, thereby allowing for the unimpeded operation of the ventilation system. So as to provide thermal protection for sensitive components of the audio speaker, thermal barrier is installed over the rearward extending speaker components to thermally isolate those components from conditioned, heated and cooled air either being flowed into or out of the room.

Abstract: A loudspeaker comprises an acoustic radiator (10) (e.g., a panel) capable of supporting bending waves, an exciter mounted on the acoustic radiator (10,28) to excite bending waves in the acoustic radiator (10,28) to produce an acoustic output, and a filter (12,30) located adjacent to the acoustic radiator (10,28) for directing the acoustic output from the acoustic radiator (10,28). The filter (12,30) is adapted to have a pattern (11) of varying acoustic absorbency, the pattern (11) being selected to produce a desired directivity of the acoustic output. The filter (12,30) may be in the form of an acoustic mask comprising a pattern (11) of at least one acoustic aperture (14,16).

Abstract: In a garment which can receive a printed circuit board having a sound synthetic chip (10), a sound outputting element (12), a switch (14), a battery (15) and the like mounted on the printed circuit board (20) and which is capable of outputting a sound or breaking the output of the sound by operating the switch (14), said garment comprises a button exposing hole (32) for exposing at least a portion of the button (14a) of said switch (14) and said sound outputting element (12) in front of it; and a moisture-proof paper (70) being positioned between an inner surface of said non-woven fabric pocket (30) and an rear surface of said printed circuit board (20).

Abstract: A stereo speaker system for portable computers which maximizes spatial impression by using rearward-firing speakers, mounted in the back of the display, in combination with forward-firing speakers mounted on the chassis or in the front side of the display.

Abstract: A sound bubble for generating three-dimensional aural phenomenon from a two-dimensional sound reproducing surface. The surface is comprised of sound pixels that are discrete, addressable output locations for audio data streams.

Abstract: A sound production apparatus has a speaker, an amplifier circuit that includes at least one electron tube, and a portable housing that encloses the speaker and contains the amplifier circuit such that the speaker is fully enclosed within the housing. In a particular implementation the amplifier circuit includes an input connector, a first triode connected to the input connector, a gain adjustment variable resistance connected to the first triode, and a second triode, which second triode is connected to the gain adjustment variable resistance. A tone adjustment section has a treble tone adjustment variable resistance, a bass tone adjustment variable resistance, and a midrange adjustment variable resistance, all connected to the second triode. A volume adjustment variable resistance is connected to the tone adjustment section, a pentode is connected to the volume adjustment variable resistance, and a transformer is connected to the pentode.

Abstract: An easily-combinable and movable speaker case includes two side boards, a front holed board, a speaker support board, an electric circuit board, a rear control board, a cap board, a bottom board, and a pull member. The two side boards are spaced apart parallel and respectively has a plurality of vertical position grooves and posts spaced apart on an inner surface for inserting the front holes board, the speaker support board, the electric circuit board and the control board in the position grooves of the two side board. Then the cap board and the bottom board are respectively fixed on and under the two side boards with screws. Further two rollers are fixed under the bottom board to permit the speaker case inclinedly move on the ground by pulling the pull member.

Abstract: A soft bag containing an audio system with multiple speakers and strap which may be worn about the abdomen of an expectant mother or carried separately by the non-expectant mother. The bag also has a storage area for carrying various sundries related to pregnancy and infants.

Abstract: A sound reproduction unit comprises a central, head receiving portion and opposite first and second ends. The first and second ends have opposed front and back surfaces. A first acoustic transducer is mounted within the first end and a second acoustic transducer is mounted within the second end. First, second, third and fourth acoustically substantially transparent pathways are provided between the first transducer and the front surface of the first end, the first transducer and the back surface of the first end, the second transducer and the front surface of the second end, and between the second transducer and the back surface of the second end, respectively.

Abstract: An acoustic speaker system according to this invention is provided that includes a conventional woofer, an electro-acoustic converter that functions as a tweeter, and a system enclosure. The converter includes an electro-acoustic transducer and a variable density hollow body. The transducer includes a piezoelectric sheet and two conductive electrodes. One electrode is disposed on each face of the sheet. Coatings are optionally disposed on each side of the transducer. The transducer is wrapped around a variable density body which may be filled with an acoustic dampening material. The acoustic speaker system enclosure includes a hollow ellipsoidal woofer enclosure with a portion of its outer surface for mounting an electro-acoustic converter, and optionally, a converter cover. The acoustic speaker system also includes an elastomeric cover that is fastened to the dome portion of a woofer.