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| Number | Title | Issue Date |
| 7350618 | Multimedia speaker product 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 ... | 04/01/2008 |
| 7252176 | Reflex-ported folded horn enclosure 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 ... | 08/07/2007 |
| 7088830 | Parametric ring emitter A sound emitting device for providing at least one new sonic or subsonic frequency as a by-product of emitting a waveform of at least two ultrasonic frequencies whose difference in value corresponds to the desired new sonic or subsonic frequency. The device includes... | 08/08/2006 |
| 6981570 | Loudspeaker system with common low and high frequency horn mounting The invention relates generally to the field of audio loudspeaker enclosures, and more particularly to a method of mounting the internal components in the loudspeaker so as to control the loudspeaker output. Specifically a mounting structure and method for mounting ... | 01/03/2006 |
| 6953051 | Valve plate structure Disclosed is a valve plate structure comprising: a suction valve for inhaling a low pressure of coolant through a linear reciprocating movement of a piston and an opening and closing operation in response to the back-and-forth movement; a valve plate coupled with th... | 10/11/2005 |
| 6843345 | Device and method for installing vehicle door speaker A speaker assembly device for a door of a vehicle capable of being installed in vehicle doors of different thicknesses and shapes includes a speaker unit; a holder for mounting the speaker unit to a front portion thereof, the holder including an engagement portion a... | 01/18/2005 |
| 6782971 | Serviceable acoustic interiors The present invention provides methods and apparatus for constructing an acoustic absorbing structure, such as a wall or enclosure, with removable and serviceable acoustic absorbing panels. ... | 08/31/2004 |
| 6766027 | Elliptical flushmount speaker An elliptical speaker system is provided for in-wall/in-ceiling mounting. The speaker system comprises an elliptical speaker frame or bracket defining a speaker front plane having a generally arcuate inner surface. First and second speaker components are mounted wit... | 07/20/2004 |
| 6724904 | Microphone mounting assembly A mounting assembly for removably supporting a microphone in an operative position and in a manner which will protect the microphone against attenuating high impact phonetic peaks. A plurality of support assemblies are selectively attachable to one another to assume... | 04/20/2004 |
| 6678384 | Speaker structure A speaker structure having a simple configuration while maintaining good sound quality is disclosed. The speaker structure comprises a first speaker (20) having a first vibration plate (21), a first frame (22) for fixing the perimeter of the first vibrati... | 01/13/2004 |
| 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 closed end of the enclosure, an in-line phase plug mounted in f... | 06/03/2003 |
| 6530451 | System of elements for the diffusion of sound in rooms deligated to the reproduction of music and speech A system for sound diffusion, particularly at low and infra-low frequencies in rooms used for the reproduction of music and speech including at least one large horn enclosure and an architectural structure with a continuous or intermittent "multi-hemicyli... | 03/11/2003 |
| 6480613 | Loudspeaker stand A loudspeaker set comprises three loudspeakers 29, 30 and 31 for use with a PC having a monitor 24. The loudspeaker 31 is stationary and mounted on the monitor 24. The loudspeakers 29 and 30 are mounted on foldable stands 22 and 23 that enable these louds... | 11/12/2002 |
| 6259797 | Metal base design for a speaker A metal base assembly for speaker that combines with a magnetic circuit to produce a fluctuating magnetic field which drives an acoustic diaphragm into vibration to produce a warning alarm. The metal base assembly comprises a top pad, a middle pad, a bott... | 07/10/2001 |
| 6243138 | Camera including means for acquiring bi-directional sound A camera having means for detecting sound in a bi-directional manner. A microphone, for example a first order gradient microphone, is placed within a camera body and is in communication with two apertures extending from the front and rear surfaces of the ... | 06/05/2001 |
| 5703336 | Exhaust noise suppressing apparatus for hermetic compressor An improved exhaustion noise suppressing apparatus for a hermetic compressor directed to minimizing vibration of a refrigerator cycle pipe mechanism caused by a pressure difference of an exhausting gas pressure of the exhausting gas which is discharged fr... | 12/30/1997 |
| 5598162 | Removable audio remote controller for a microphone A holder is provided for a remote controller of a karaoke machine. The holder causes the remote controller to be removably held to a handle of a microphone. The holder comprises a portion of an elastic material, such that the portion can tightly fit an ou... | 01/28/1997 |
| 5397866 | Dual acoustic horn assembly An acoustic horn assembly for use as part of an electronic siren system for an emergency vehicle comprises a pair of integrated molded, rigid plastic members which cooperate to define a pair of divergent sound passages. The entrance ends of these sound pa... | 03/14/1995 |
| 5296656 | Sound collecting and concentrating device for attaching to the back of multiple loudspeakers A loudspeaker system and a loudspeaker housing system uses a plurality of smaller rated loudspeakers to generate a high-level output. Specifically, the plurality of loudspeakers are housed in a corresponding number of substantially cylindrical sound colle... | 03/22/1994 |
| 5293010 | Sound dampening device for horns The horn housing may comprise an inner metal shell in the shape of a hexagonal box open at one end fitting into a similarly shaped outer dense solid box similarly open at one end. Space between the inner and the outer boxes being filled by a low density s... | 03/08/1994 |
| 5206465 | Sound collecting and concentrating device for attaching to the back of a loudspeaker This invention relates to a loudspeaker having at least one sound collecting tubes attached to the rear of the speaker frame or the sound collecting tubes forming the speaker frame for collecting and directing sound waves emitted from the rear of the spea... | 04/27/1993 |
| 5094317 | Two-piece megaphone with ornamental member A two-piece megaphone assembly having a conically-shaped member and an ornamental headpiece which attaches by means of interlocking attachment lugs to the large diameter end of the conically-shaped member. The headpiece is comprised of two symmetrical hal... | 03/10/1992 |
| 5093865 | Reflecting sound imaging speaker enclosure The direct and reverberant sound fields heard at a live musical performance are reproduced by a speaker enclosure consisting of two sub-enclosures mounted on a base with each subenclosure housing at least one speaker, thereby realistically reproducing the... | 03/03/1992 |
| 4967684 | Warning device The present invention pertains to a warning apparatus with respect to a ski-pole. The warning apparatus is comprised of a device for signaling that does not require the ski-pole to be seen in order for a signal provided by the signaling device to be notic... | 11/06/1990 |
| 4865159 | Acoustic horn and attachment device Disclosed is an acoustic horn to aid in bulk powdered material handling particularly from trucks and railroad cars. Such acoustic horn is comprised of an external cone having a driver affix thereto. There is also an inverted internal cone contained within... | 09/12/1989 |
| 4742548 | Unidirectional second order gradient microphone A second order gradient microphone with unidirectional sensitivity pattern is obtained by housing each of two commerically available first order gradient microphones centrally within a baffle. The baffles have flat surfaces, are preferably square or circu... | 05/03/1988 |
| 4556861 | Automobile speed control system An automobile speed control system is provided with a speed signal generator circuit for generating first electrical signal indicative of actual automobile speed and a desired automobile signal supply circuit for supplying a second electrical signal indic... | 12/03/1985 |
| 4550229 | Trumpet horn speaker This speaker represents an improved trumpet horn speaker structure. A trumpet horn speaker is disclosed having a metallic heat sink, a lower magnetic pole mounted on the heat sink, a round permanent magnet mounted on the heat sink, an upper magnetic mount... | 10/29/1985 |
| 4541505 | Acoustic unit base for electropneumatic horns An improved acoustic unit base for electropneumatic horns, of the type comprising a main body peripherally seamed to an end piece with a diaphragm therebetween. Said main body is formed by connecting together a first and a second member of deep-drawn shee... | 09/17/1985 |
| 4525872 | Amplifier An accessory for mounting on the receiver of a personal paging system. The receiver is normally worn below ear level and the accessory increases the sound of the paging signals reaching ear level.... | 06/25/1985 |
| 4433750 | Synthetic horn projector with metal insert The invention pertains to electric horns for automobiles wherein a metal horn motor housing is assembled to a sound projector formed of synthetic plastic. A metal insert is molded into the projector having a metal flange extending from the projector adjac... | 02/28/1984 |
