Abstract: A viewing port for sighting through a barrier includes a primary body and a secondary body engaging with a barrier aperture in the barrier. The primary body defines a first aperture. The secondary body defines a second aperture. The first aperture of the primary body is aligned with the second aperture of the secondary body defining a viewing channel between the primary body and the secondary body. The viewing channel providing a field of view through the barrier.

Abstract: Disclosed is an eartip for an earphone. The eartip includes a fixing portion formed to have a cylindrical shape with a bottom fixedly coupled to a nozzle of an earphone, a variable portion formed to have a cylindrical shape with a bottom coupled to a top of the fixing portion and to have a length and bending which are variable, and a contact portion formed of a flexible material and including an inner section having a cylindrical shape with a bottom coupled to a top of the variable portion and an outer section extending to be rounded downward from a top end of the inner section to surround at least parts of the inner section, the variable portion, and the fixing portion and to come into contact with an external auditory meatus of a user's ear.

Abstract: This disclosure describes, in part, covers for electronic devices. For instance, a portion of a cover may attach to a portion of an electronic device. In some instances, the portion of the electronic device is associated with receiving sound. The cover may include one or more speakers that are configured to output sound towards one or more microphones of the electronic device. By outputting the sound towards the one or more microphones, the one or more microphones may receive more of the sound than sound (e.g., user speech) located in an environment that includes the electronic device. The cover may also include one or more microphones for generating audio data representing commands. For example, the commands may cause the cover to output the sound using the one or more speakers and/or cease outputting the sound using the one or more speakers.

Abstract: An eartip, mold device for manufacturing the eartip, and method of manufacturing the eartip are introduced, characterized by forming an upper bevel-portion with upper and lower molds of a first mold unit, placing the upper bevel-portion in an upper bevel receiving cavity of a second mold unit, forming a lower bevel-portion with a lower bevel cavity, and joining the upper and lower bevel-portions to form an eartip. The top of the lower hollow-cored guiding tube extends to form a buffer portion which connects and communicates with the upper hollow-cored guiding tube. The upper and lower bevel-portions are made of silicone of different rigidity. The upper bevel-portion thus made is soft enough to reach a user's ear canal deeply. The lower bevel-portion thus made is rigid enough to close the ear canal. An annular buffer cavity is inwardly, concavely formed at the bottom of the lower bevel cavity.

Abstract: This disclosure describes, in part, soundproof covers for voice-controlled devices. For instance, a first portion of a soundproof cover may include a soundproof material that does not allow outside sound to travel to microphone(s) of a voice-controlled device. A second portion of the soundproof cover may include a material and/or openings that allows interior sound output by speaker(s) of the voice-controlled device to travel outside of the soundproof cover. In some instances, such as when the voice-controlled device includes a display, a third portion of the soundproof cover may include material and/or an opening that allows the display to be visible.

Abstract: This disclosure describes, in part, soundproof covers for voice-controlled devices. For instance, a first portion of a soundproof cover may include a soundproof material that does not allow outside sound to travel to microphone(s) of a voice-controlled device. A second portion of the soundproof cover may include a material and/or openings that allows interior sound output by speaker(s) of the voice-controlled device to travel outside of the soundproof cover. In some instances, such as when the voice-controlled device includes a display, a third portion of the soundproof cover may include material and/or an opening that allows the display to be visible.

Abstract: Various embodiments of an earpiece for a mobile device. The earpiece is detachably mounted to the mobile device and provides sound amplification for a user.

Abstract: Underwater voice communication devices and associated methods are described. According to one aspect, an underwater voice communication device includes a voice chamber comprising a face seal which is configured to form at least a substantially watertight seal with respect to a mouth of a first user, wherein the voice chamber comprises an internal volume, an earpiece comprising an ear seal which is configured to form at least a substantially watertight seal with respect to an ear of a second user, wherein the earpiece comprises an internal volume which is in fluid communication with the internal volume of the voice chamber, and wherein the internal volumes of the voice chamber and earpiece communicate voice sound waves from the mouth of the first user to the ear of the second user.

Abstract: A convertible slide-glide panel privacy (or blind barrier section) system is provided for deck railings or fences. The system may consist of identical panel sections. A first panel section may consist of a stationary panel. Additional identical panel sections may be in an opposite facing orientation with respect to the first panel section and may be configured to slide in-between the most outer stationary structural supports (i.e., an upper railing, a lower railing and posts) of a deck railing or fence in order to either cover or open an existing space or gap between stationary balusters. The stationary panel may be attached directly under an upper railing and attached slide pieces. The sliding path of the additional panel sections may be linear or curvilinear. The sliding panel sections in the system may be constructed from a combination of or individually from composites, wood, metals, glass, lattice, PVC and transparent thermoplastics.

Abstract: An acoustic structure and a method for dampening sound. The acoustic structure includes an acoustic absorber having one or more acoustic elements. The acoustic absorber is disposed inside a volume. The acoustic structure further includes an acoustic radiator having one or more acoustic elements. The acoustic radiator is disposed outside the volume. A cross-sectional area of the one or more acoustic elements decreases with a distance from a mouth of the one or more acoustic elements to a throat of the one or more acoustic elements. The acoustic structure also includes one or more acoustic waveguide ducts configured to acoustically couple the acoustic absorber and the acoustic radiator.

Abstract: The adjustable mouth shield device provides an adjustably fitted mouth shield with adjustable headband for secure fit. The adjustable headband is fastened to the padded earpiece. The straight first extension from the earpiece is angled downwardly and forwardly to terminate in a swivel joint providing almost 360 degrees of swivel. The second extension is arced both downwardly and forwardly. The u-shaped mouthpiece is fitted to the adjustable spring mount for horizontal pivot of the mouthpiece. The mouthpiece may, by virtue of the swivel joint and the spring mount, be moved completely away from a user's mouth and, in turn, pivoted and swiveled to be directly in front of the user's mouth. The inward curves at the distal end of the mouthpiece aid in sliding on the disposable pads that shield a user from objects, foods and other materials.

Abstract: A megaphone comprises a rigid but bendable material with a tapered shape. When the material is folded, the produced megaphone has a small opening at one end and a larger opening at the other end. The megaphone has edges that form an opening along the side such that when pressure is applied to the edges the opening expands allowing the megaphone to be positioned on a person's arm or leg. Once positioned on the arm of leg the rigidity of the material causes the megaphone return to its original cone shape. The megaphone can enclose around a user's arm or leg for storage purposes during an event. Information can be displayed on the surface of the megaphone. The megaphone of the present invention can be folded and unfolded.

Abstract: A high comfort sound delivery system (10) for use with a personal communications device such as a telephone. The high comfort sound delivery system (10) has a behind-the-ear member (12) for holding the device on or near an ear of the user, and a sound horn (14) to be positioned at or near the ear canal of the user. Sound is produced by a speaker (26) in a speaker enclosure portion (15) of the behind-the-ear piece (12) and is delivered to the sound horn (14) through a generally flexible connecting member (16). Rotational adjustment is provide to rotating the connecting member (16) in relation to a speaker tube connection projection (20) and/or a sound horn tube connection projection (46). A length adjustment is provided by moving an elongated portion (66) of the connecting member (16) of the sound horn tube connection projection (46). Alternate sound horn bodies (42a, 42b, 42c, 42d, 42e, 42f) provide addition rotational adjustment points.

Abstract: A communication device used to talk underwater. The device allows a speaker to fill a mouthpiece (22) with air while underwater and immediately begin speech thus allowing the speaker to start talking underwater with a minimal amount of air expended and not having to fill the device with air before going underwater. The mouthpiece (22) surrounds the mouth and creates an airtight seal between the device and the skin surrounding the mouth (20). Connected to the mouthpiece (22) is an air chamber (23) that is shaped to substantially minimize the amount of acoustic energy, or sound, being reflected back into the speaker's mouth through the mouthpiece (22). At the bottom of the air chamber (23) is a venting area (24) with small perforations to allow the air to escape the device in small and relatively quiet bubbles.

Abstract: An apparatus and method are disclosed for acoustically guiding a distal end of a tube within a body. An incident sound pulse is generated and propagated down the tube into the body. A plurality of microphones are located in the tube and are positioned to detect pulses traveling through the tube. A discriminator distinguishes between incident sound pulses and those that are reflected from within the body. The detected sound pulses are processed to provide an indication of the location of the distal end of the tube within the body, to assist with the guidance of the insertion into the body, to estimate dimensions of the body adjacent the distal end of the tube, and to determine if the tube is obstructed.

Abstract: An adjustable sound capturing device 2 (“MICTUBZ”) having a hollow main cylinder 20 open at both ends with a central microphone port 22 defined in the side wall, the microphone port 22 being equipped with an adjustable fastener 30 for seating the head of a conventional microphone 50 therein. In addition, two rotatable and telescoping cylindrical end tubes 10A, 10B are mounted on the open ends of the main cylinder 20, each having one open end, one closed end, and an acoustic input port 12 defined in its side wall, proximate the closed end, for channeling sound from spaced instruments to the centrally-mounted microphone 50. When a conventional microphone 50 is mounted on an existing mike stand, the adjustable sound capturing device 2 can be attached to the microphone 50 and adjusted to effectively double the pickup capacity of a single microphone 50 and to selectively pick up the sounds of two spaced-apart instruments without also picking up ambient sounds or other noise.

Abstract: A hearing aid system including an electronic hearing aid containing a microphone and having an orifice in one part thereof for transferring sound to the microphone and an acoustically amplifying horn formed with an outwardly flared end defining an inlet opening for sound originating ahead of the horn and an open downstream end attached to the part of the hearing aid containing the orifice such that the orifice is enclosed and sealed off from exposure to sound originating outside of the horn except for that sound entering the inlet opening.

Abstract: A prenatal audio communication device has a receiving chamber which accepts sound waves for transmission through a flexible tube to a megaphone secured against the abdomen of a pregnant woman so as to transfer sound waves from an external source with which the chamber is juxtaposed to a position proximate the ears of the baby in the womb. Means is connected to the megaphone for encircling the pregnant woman and securing the megaphone outlet port against her abdomen. Preferably, the inlet port has a perimeter contoured to be snugly juxtaposed about the mouth of a typical adult. A curved lip extends along the inlet port perimeter to form a continuous seal between the chamber and the face of the user, to increase the comfort level of the user when the chamber is pressed against the face and to make a single chamber more universally usable with a variety of sound wave source shapes and sizes.

Abstract: An acoustical voice tube, comprising an acoustical hollow upper piece and an acoustical hollow lower piece in hinged connection permits voice or sound tube positioning over a large area without changing the sound characteristics.

Abstract: A device for allowing for spoken communication between a pregnant woman and her fetus. The device has a speaking tube component connected at one of its ends to a mouthpiece component and at its other end to a stomach-piece, megaphone-type component. The speaking tube component is made of flexible and soft plastic to allow for reconfiguration to suit the size and stage of pregnancy of the woman. The stomach-piece component has a canted annular edge surface to allow flush positioning against the stomach. The pregnant woman speaks into the mouthpiece, the sounds being amplified and sent to the megaphone-type component positioned against the abdomen so the fetus may hear.

Abstract: Submersible personal stereo using a source, such as a radio, of stereo signals, a pair of sealed chambers housing a pair of electro-acoustic transducer and acoustic transmissive tubing for transmitting sound from the chambers to ear plugs, the tubing being non-wet by water and of a small inner diameter to keep water from entering.

Abstract: An acoustic connector is shown for coupling two devices. One device is provided with a hub while the other has a cylindrical member which mates with the hub to provide a permanent coupling therebetween. The member is hollow to conduct acoustic signals between the devices.

Abstract: A respirator speech transmitter has a projecting tube with a one-way valve at one end and the other end being covered by a baffle having an inner skirt extending around the tube. An outer skirt extends from the tube to surround the inner skirt so that an annular convoluted passageway which increases in annular width as it extends from the tube formed between the outer surface of the tube, the inner skirt and the outer skirt. This convoluted passageway has excellent acoustic properties yet prevents ingress of contaminants. In a modification the valve is at the same end of the tube as the baffle.

Abstract: A device for transmitting sound from a speaker in a first area, such as a sterile or clean field, to a second area such as a nonsterile or nonclean field. The device includes a sound conduit having an inlet and an outlet and being of sufficient length to permit placement of the inlet in the first area and placement of the outlet in the second area, means, such as a filter mask, for securing the inlet in an operative position relative to the speaker's mouth, and a coupler connected to the outlet. A microphone and means for adjusting the sound pressure transmitted through the conduit are preferably also provided.

Abstract: An underwater voice communicator in which the preferred embodiment comprises a pair of tapered tubes in communication with a diver's mouth. The tubes are constructed of a material having a sound impedance similar to the sound impedance of water. Sound energy issuing from the mouth of a diver is reflected down the length of the tapered tubes to an area of the tube that concentrates the sound for injection into the surrounding water.

Abstract: A crash helmet for use by motorcycle drivers or riders has a rigid shell; a first flexible acoustic tube a first section of which extends into and has a bell horn in the region of the mouth-protecting part of the shell, and a second section extending from the shell through the opening in the neck-surrounding part of the shell; a second flexible acoustic tube a first section of which extends into and has a sound-intensifying terminal portion in the region of an ear-protecting part of the shell, and a second section extending outwardly through the aforementioned opening of the shell; first and second additional flexible acoustic tubes respectively corresponding to the second and first tubes and having first sections installed in the shell of a second crash helmet; and a quick-release coupling respectively connecting the second sections of the first and second tubes with the second sections of the second and first additional tubes.

Abstract: An eyeglass hearing aid including a channel having a serpentine shape for providing a compact acoustical path for extending the path of sound transmission. A sweat guard is positioned around a volume control aperture formed on the upper surface of the eyeglass aid. Alignment structure serves to fix a curved printed circuit board in position relative to the flat lower surface of the paddle portion of the eyeglass aid. These particular structures are incorporated in an eyeglass hearing aid in order to utilize a printed circuit board of a behind-the-ear hearing aid and to provide the same frequency response as a behind-the-ear aid.

Abstract: An insulated transmission medium for propagating ultrasonic vibrational waves and conducting electromagnetic energy in a multiplex type communication system, whereby said medium is a metallic strip that interconnects an ultrasonic wave transmitting transducer, a D.C. power source, an ultrasonic wave receiving transducer and the controlled loads.