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| Number | Title | Issue Date |
| 8177022 | Transmitted sound control apparatus Wall partitioning between outside and inside of a room has an opening portion closed with a film. Sound insulating plate, comprising a lamination of a sound reflecting plate and a sound absorbing member, is supported in opposed relation to the opening portion and at... | 05/15/2012 |
| 8162099 | Vehicle interior structure A vehicle interior structure that may realize a more amenable vehicle interior space by making communication between occupants sitting on a pair of vehicle seats easier. The vehicle interior structure includes: a pair of vehicle seats; and a sound-reflecting communi... | 04/24/2012 |
| 8162098 | Tunable acoustic reflector An acoustic reflector suitable for use as a reflective target for navigational aids and for location and re-location applications. The acoustic reflector comprises a shell arranged to surround a solid core. The shell is adapted to transmit acoustic waves incident th... | 04/24/2012 |
| 8141678 | Sound-permeable film, electronic component with sound-permeable film, and method of producing circuit board having electronic component mounted thereon A sound-permeable film (11) includes: a porous membrane (13) that contains polytetrafluoroethylene as its main component, allows sound to pass therethrough, and prevents an foreign object such as a water drop from passing therethrough; and a heat-resis... | 03/27/2012 |
| 7357217 | Faceplate cover The present invention provides an improved method and apparatus for manufacturing communication devices. A cover is attached to a surface of a faceplate that includes at least one opening, to provide enhanced device protection and sound quality. In one embodiment of... | 04/15/2008 |
| 7335832 | Web configuration in acoustic impedance-inducing device A coiled blank defines two elongated parallel bands and a parallel web separating the bands. Opposite ends of the web form diagonally opposed spacer strips arranged such that, when the blank is coiled to bring the ends of the web into juxtaposition, the opposed spac... | 02/26/2008 |
| 7331950 | Apparatus for containing noise generated by a pneumatically powered surgical instrument and related method A sound attenuating system is provided for pneumatically powered surgical instruments. In one aspect, the exhaust hose is formed of at least two dissimilar materials to impede the transmission of vibrations or audible noise. In an alternative form, the exhaust hose ... | 02/19/2008 |
| 7317802 | Active-noise-reduction headsets with front-cavity venting Active-noise-reduction (ANR) headsets protect the hearing of their users from loud persistent noises, such as airplane engines and construction equipment. These headsets generally include ear speakers and special circuitry to cancel or suppress certain types of loud... | 01/08/2008 |
| 7313242 | Hypersonic transducer This invention provides methods and apparatus for focusing a hypersonic beam to control both a direction and depth of audible formation delivery. Signals that are delivered to each of a plurality of hypersonic transducer elements are adjusted in phase so that transm... | 12/25/2007 |
| 7313246 | Information system using eyewear for communication Eyewear comprises a microphone and a speaker. An eyewear neck strap couples the microphone and speaker to a wearer unit carried by the eyewear wearer. The wearer unit exchanges wireless signals with a base station. The base station is coupled to various devices such... | 12/25/2007 |
| 7293401 | Jet engine noise suppressor An embodiment of the invention is a technique to suppress noise in a jet engine. A noise suppressor includes an exhaust duct to exhaust a first stream from an air stream taken from an inlet. The exhaust duct has an exit end. The air stream is divided into the first ... | 11/13/2007 |
| 7280665 | Image display device with built-in loudspeakers An image display device has a main display body provided with a thin display unit, a low-frequency loudspeaker (woofer) and two middle and high frequency loudspeakers (tweeters) and a stand supporting the main display body. The stand has a base being just opposite a... | 10/09/2007 |
| 7255196 | Windshield and sound-barrier for seismic sensors A system and method for reducing acoustic, wind or other background noise that may interfere with sensing of a seismic signal is provided. More specifically, a shield is provided to enclose a geophone and thereby protect it from harmful noise. The shield may compris... | 08/14/2007 |
| 7248703 | Systems and methods for adaptive noise cancellation A system (400) for reducing non-acoustic noise includes a primary sensor (420), at least one secondary sensor (410), a filter (415), and a summation unit (425). The primary sensor (420) measures pressure and produces a prima... | 07/24/2007 |
| 7241258 | Passive vibration isolation of implanted microphone A system for reducing the vibration sensitivity of an implantable microphone without an equal or greater reduction in sound sensitivity. The system reduces non-ambient vibrations by placing at least one compliant member into the path of transmission for tissue-borne... | 07/10/2007 |
| 7214179 | Low acceleration sensitivity microphone An implanted microphone is provided that has reduced sensitivity to vibration and attendant acceleration forces. In this regard, the microphone differentiates between the desirable and undesirable components of a transcutaneously received signal. More specifically, ... | 05/08/2007 |
| 7204342 | Sound focus speaker of gas-filled sound lens attachment type A sound focus speaker adopting a gas-filled sound lens enhances efficiency of transferring sound from a source to target area and of protecting a spread of transferred sound. The sound focus speaker includes a gas-filled sound lens, sound sources for generating soun... | 04/17/2007 |
| 7191022 | Public addressing system A sound-amplification apparatus comprises: an acoustic signal source for outputting an acoustic signal; an amplified sound source for receiving the acoustic signal from the acoustic signal source and radiating an amplified sound; a control sound source provided in a... | 03/13/2007 |
| 7167415 | Transducers for focusing sonic energy in transmitting and receiving device Ultrasonic transducers which include at least one internally directed generally concavely configured sonic energy radiating element which directs sonic energy toward at least one arcuate energy reflecting surface which redirects and focuses the energy through an ope... | 01/23/2007 |
| 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 another of which is an exit section having a planar exit surface, and at ... | 01/02/2007 |
| 7126875 | Underwater energy dampening device An underwater energy dampening device is disclosed. This device includes a plurality of vertically-spaced bubble producing units. With bubbles produced at various depths, the present invention can effectively attenuate sound and other energy from underwater construc... | 10/24/2006 |
| 7096995 | Polyurethane foam cabinets 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 p... | 08/29/2006 |
| 7040580 | Automatic activation device for deploying a parachute and methods thereof Methods, systems, and computer program products for an automatic activation device for deploying a parachute are disclosed. The methods and systems include protecting the device from damage from a liquid and may include a filter configured to allow airflow to pass t... | 05/09/2006 |
| 7036157 | Method of producing a hood, and a hood produced according to the method The disclosure relates to a method of producing a hood for a hearing protector by injection moulding of plastic material. The hood is injection moulded to a single contiguous piece employing at least two plastic materials possessing different properties in at least ... | 05/02/2006 |
| 7035420 | Microphone gasket with integrated acoustic resistance An acoustically resistive membrane is incorporated into a gasket construction for use with a microphone. Preferably, a molded thermoplastic gasket is provided with an integrated acoustically resistive element in the form of a thin perforated membrane that is molded ... | 04/25/2006 |
| 7024013 | Sound reduction/elimination device A sound attenuating device including an earmuff-like headset with two earpieces that is adjustable to accommodate different sized heads and includes a removable headband sleeve that eliminates hair entanglement. Additionally, one of the earpieces is fixedly attached... | 04/04/2006 |
| 6986348 | Cough-a-lizer The germ and noise filter device is a disposable, hand held filter apparatus that covers the mouth of the user during the exhale phase of a cough. The device comprises: a body with a cavity that houses three micro-filters; a corrugated tube; two one-way valves and a... | 01/17/2006 |
| 6954666 | Method for local reduction of the operating noise produced by a medical diagnostic or therapy device, and medical diagnostic or therapy device having a device for implementing such a method In a method for local reduction of the operating noise produced by a medical diagnostic or therapy device, antisound is produced locally by a sound source. The sound source used is a highly directional parametric loudspeaker. As a result, disturbing operating noises... | 10/11/2005 |
| 6932187 | Protective acoustic cover assembly A protective acoustic cover assembly including a metal foil with perforations, and a treatment on one or more surfaces of said metal foil. The treatment is a hydrophobic or oleophobic treatment, or both. The protective acoustic cover assembly has an average specific... | 08/23/2005 |
| 6905000 | Faceplate cover The present invention provides an improved method and apparatus for manufacturing communication devices. A cover is attached to a surface of a faceplate that includes at least one opening, to provide enhanced device protection and sound quality. In one embodiment of... | 06/14/2005 |
| 6834744 | Speaker system This invention has been made to provide a speaker system capable of miniaturization and presenting a good sound quality. A speaker 15 is mounted on a printed circuit board 21 arranged inside a telephone body enclosure 12. Acoustic waves of posit... | 12/28/2004 |
| 6830876 | Acoustic resistor for hearing improvement and audiometric applications, and method of making same An acoustic resistor or damper and method of manufacturing the same is disclosed. The damper has mesh material and mounting material attached to the mesh material. The mounting material defines an open region for transmission of sound through the mesh material, and ... | 12/14/2004 |
| 6805219 | Engine cover An engine cover has a cover body having a through hole penetrating both sides of the cover body in an area opposed to a resonant space in which resonant sounds are generated. An opening of the through hole is covered with the sound absorbing member layer. Because a ... | 10/19/2004 |
| 6799657 | Absorptive/reactive muffler for variable speed compressors An absorptive and reactive muffler includes an annular flow path for the gas with the center of the annulus having a plurality of resonators which are in open communication with the downstream end of the annular flow path and make up the reactive portion of the muff... | 10/05/2004 |
| 6684977 | Speaker retention assembly for an active noise control system An air introduction system (10) provides an active noise control system which includes a speaker assembly (28) in which the speaker support ring (36) is mounted to a speaker housing (32) without fasteners. In one speaker assembly, the speaker housing incl... | 02/03/2004 |
| 6619425 | Soundproof cover A soundproof cover includes a sealing layer, a sound insulation layer, and a vibration inhibition layer. The sound insulation layer has a peripheral portion, is to be disposed so as to contact at least the peripheral portion with a noise source, and exhib... | 09/16/2003 |
| 6561312 | Device for in particular acoustically uncoupled mounting An arrangement for acoustically uncoupled mounting of slightly vibrating components on an anchoring part has a first sleeve which is adapted to guide through an opening of a component, a mounting screw which extends through the first sleeve, an uncoupling... | 05/13/2003 |
| 6533063 | Video equipment speaker device with acoustic lens In video equipment, a video equipment speaker device that is almost invisible from a viewer and capable of placing, toward the front of the center portion of the screen, an acoustic image from a speaker 2 provided on at least either an upper or lower port... | 03/18/2003 |
| 6527080 | Passive system for speech enhancement A passive system for speech enhancement in a motor vehicle includes a headliner adapted to be disposed in an occupant compartment of the motor vehicle. The passive system also includes at least one passive sound reflector disposed in or near the headliner... | 03/04/2003 |
| 6519348 | Speaker apparatus and television set A first feature of the present invention is that the opening of a sound output port 3b is smaller in area than the opening of a sound input port 3a in a horn 3. A second feature is that the sound output port 3b of the horn 3 is located so as not to be in ... | 02/11/2003 |
