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6704426 |
Loudspeaker system
A bandpass loudspeaker enclosure system including at least one electro-acoustic transducer with a vibratable diaphragm having a first acoustical coupling surface and a second acoustical coupling...
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6650758 |
Adaptive dual port loudspeaker implementation for reducing lateral transmission
This invention describes a loudspeaker implementation which can adaptively reduce the transmission of an acoustic signal to listeners other than the intended listener. The invention uses a dipole...
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6643379 |
Acoustical transducer for recreating a spatial sound stage and improved localization of original sounds sources
The present invention relates to a unique stereophonic speaker system of unique construction and true left and right speakers assemblies, booth physically and electrically. The speaker assemblies,...
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6628793 |
Speaker system
A speaker system comprises a housing that includes a front wall with a plurality of openings, and first and second exterior sidewalls. A plurality of vertically arranged speakers are each placed...
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6504938 |
Dual-chamber loudspeaker
An economical and compact dual-chamber loudspeaker includes a small driver received within a partition extending between, and in acoustical and pneumatic communication with, both a front and a back...
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6496586 |
Thin Loudspeaker
A thin loudspeaker is provided that produces a superior frequency response and a diffuse acoustical pattern using magnetic drivers, acoustical plates, or a combination of magnetic drivers and...
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6477356 |
Sounding-body holding device
A sounding-body holding device comprises: a cover 1 having turn stoppers of a sounding body 3 and a fitting portion for receiving pawls of a holding member in a fitting manner; a cushion 2 ...
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6373955 |
Loudspeakers
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...
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6339649 |
Loudspeaker system with stackable loudspeaker units
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...
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6298140 |
Electroacoustic transducer with improved tonal quality
An electroacoustic transducer with attenuated effective output irregularities caused by intrinsic normal modes of oscillation. What stands out, as a structural property of a preferred embodiment,...
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6292573 |
Portable communication device with collapsible speaker enclosure
A portable communication device includes a speaker enclosure having a speaker and a plurality of telescoping nested shells moveable between a collapsed configuration and an expanded configuration....
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6259799 |
Speaker system
A speaker system includes a plurality of double-voice-coil speaker units fitted to a closed type cabinet and connected in parallel with each other so that first voice coils are connected to each...
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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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6169811 |
Bandpass loudspeaker system
A bandpass loudspeaker enclosure system including a first primary enclosure volume, a second primary enclosure volume and a dividing wall positioned between the first and second primary enclosure...
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5953432 |
Line source speaker system
A plurality of speakers are arranged in line, and a plurality of digital filters are provided for the speakers. Each of the digital filters is applied with a plurality of audio signals....
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5889875 |
Electroacoustical transducing
Electroacoustical apparatus includes according to one aspect structure for providing a sound field concentrated at a restricted listening region corresponding substantially to a human head while...
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5850460 |
Bass speaker
Passive radiators of the same effective vibration area and the same effective vibration mass disposed in mutual opposition, and driver units of the same effective vibration area and the same...
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5388162 |
Sound innovation speaker system
A speaker system designed to use wider resonant sound waves by two conventional speakers which are symmetrically and oppositely disposed to face one another along a co-axis on which both axes of...
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5349575 |
Portable audio device
A portable audio device having the functions of a cassette tape recorder, a compact disc player and an AM/FM tuner includes a slimmed body provided with the cassette tape recorder, the compact disc...
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5335283 |
Loudspeaker apparatus for electronic keyboard musical instrument
A loudspeaker apparatus for an electronic keyboard musical instrument has a shelf board constituting a casing of the musical instrument. The shelf board has a sound emission opening and a first...
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5321756 |
Loudspeaker system with sonically powered drivers and centered feedback loudspeaker connected thereto
A stereophonic loudspeaker system which includes at least two channel loudspeakers and a centrally located feedback control loudspeaker. Each channel loudspeaker incorporates an electrically driven...
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5309518 |
Multiple driver electroacoustical transducing
A loudspeaker system has a number of loudspeaker driver assemblies operative over a number of octaves in the audio frequency range. Support structure supports the loudspeaker driver assemblies in...
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5307418 |
Center channel speaker having multiple interconnected backload amplifying chambers for surround sound stereo audio systems
The present invention is a multi-chamber two-way center channel speaker for an audio system which has four stereo surround sound channels including a right front channel, a left front channel, a...
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5222145 |
Dual-chamber multi-channel speaker for surround sound stereo audio systems
The present invention is a dual-chamber multi-channel speaker for an audio system which has four stereo surround sound channels including a right front channel, a left front channel, a rear...
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5212732 |
Effects speaker system
There is disclosed herein a loudspeaker system of the dipole type, particularly for use in surround sound, reverberation and similar applications. An exemplary embodiment of the speaker system...
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5134660 |
Audio harness for video camera
A wiring harness is provided with a miniature speaker and attachment means for connecting the speaker to the microphone on a video camera. The harness is also provided with a plug for coupling the...
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5105906 |
Sound reproduction speaker with improved directional characteristics
An isosceles shaped sound reproduction speaker 70 is illustrated in the accompanying drawings and described in the specification. The speaker has isosceles sides that extend upward from an apex 86...
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5097514 |
Equilateral tetrahedral speaker system
A speaker system includes a plurality of substantially identical speakers carried by a speaker enclosure such that one of the speakers is centrally located with respect to the remainder of the...
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5067159 |
Structure of a speaker apparatus
A speaker apparatus in which a speaker unit having a vibrating plate thereon is housed in a cabinet, an opening defined by the cabinet for radiating a sound generated at a front surface of the...
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5058169 |
Public address system
A public address system which consists of a longitudinal tubular member extending through an area serviced by the system, with a longitudinal opening and having a plurality of speakers spaced at...
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5046104 |
Loudspeaker system
A portable loudspeaker system that includes loudspeaker means for reproducing relatively high audio frequencies, and amplifier means, and further includes a carrying case formed as a relatively...
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5025885 |
Multiple chamber loudspeaker system
A loudspeaker system has an enclosure with a baffle dividing the interior into first and second subchambers. The smaller subchamber is directly coupled to the region outside the enclosure by a port...
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5018206 |
Network mounting device for coaxial type speaker
A network mounting device in a coaxial type speaker including a woofer having a diaphragm, a center pole for forming a magnetic circuit of the woofer, and a tweeter mounted on a front end of the...
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4961226 |
Stereo electroacoustical transducing
A stereo loudspeaker system has left and right cabinets that are the mirror image of each other. Each cabinet has a rear panel perpendicular to a side panel and an angled panel that forms an acute...
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4942939 |
Speaker system with folded audio transmission passage
A loudspeaker cabinet in which an elongated enclosure has a driver mounted internally in one wall thereof in facing, open communication with the exterior of the enclosure and an outlet sound port...
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4944019 |
Low sound region reproducing speaker system
A low sound region reproducing speaker system comprising a box, a partition separating the internal space of the box into two spatial portions, a pair of speakers attached to the partition wall,...
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4932060 |
Stereo electroacoustical transducing
A woofer enclosure includes left and right input terminal pairs and left and right output terminal pairs. A protection circuit, woofer, satellite protection capacitor, satellite passive equalizer...
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4888804 |
Sound reproduction system
A sound reproduction system for providing an enhanced stereophonic image within an enlarged listening area includes both a left and a right transducer enclosure, each enclosure having a main...
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4882760 |
Sound reproduction system
A system for reproducing sound, particularly musical sound, giving enhanced pleasure to the listener. The system utilizes a pair of low frequency range speakers, a plurality of high frequency range...
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4875546 |
Loudspeaker with acoustic band-pass filter
A loudspeaker having means for acoustically impeding excursion of the transducer diaphragm and means for acoustically attenuating the output of acoustic vibrations of frequencies above a...
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4843624 |
Portable enclosure system for audio equipment
An audio equipment enclosure and methods for stacking audio equipment enclosures. One enclosure according to this invention has a compartment for enclosing and supporting an audio amplifier, a...
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4837826 |
Stereophonic baffle
A stereophonic baffle comprises a first transducer group (7 to 10) located along a first line and fed by a right signal of a Hi-Fi chain and a second group of transducers (11 and 15) located...
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4805221 |
Construction of sound converter in sound guide, especially for loudspeakers, for example speaker boxes
An installation of sound converters (e.g., speakers) in an enclosure having mechanical fasteners such that the transmission of solid-borne sound from the speakers to the enclosure is prevented.
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4764961 |
Cassette type stereo speaker system
A cassette type stereo speaker system comprises a body case, a screen, a vibrating sheet, a voice coil, a magnetic path system and a plug. The magnetic path system includes a yoke iron, a center...
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4764960 |
Stereo reproduction system
First left and right channel loudspeakers having respective main axes of directivities directed toward left and right listening areas defined in front thereof are provided. In addition, there are...
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4701951 |
Acoustic imager
An improved stereophonic imaging system with two stand-alone cabinet units 10, 12 each having a front baffle with sound emitting bass midrange B1, B2 and tweeter T1, T2 drivers symmetrically...
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4638505 |
Optimized low frequency response of loudspeaker systems having main and sub-speakers
A loudspeaker system for use with a stereo system having right R and left L signal outputs, has a right main speaker and right sub-speaker, and a left main speaker and left sub-speaker....
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4628528 |
Pressure wave transducing
A loudspeaker driver has its front surface adjacent one end of a low loss acoustic waveguide and its rear surface adjacent to one end of a second acoustic waveguide that is one third the length of...
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4624337 |
Speaker enclosure
This speaker enclosure is of such design and structure, as to increase the input handling of speakers, enabling speakers rated at forty watts maximum handling, for example, to handle approximately...
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4509184 |
Stereo sound system
A stereo sound system for reproducing signals from two independent channels through right and left speakers. The two speakers are centrally located and propagate a lesser part of their acoustic...
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