Abstract: Computer-implemented methods, computer program products, and computer systems for mitigating frequency loss may include one or more processors configured for receiving first audio data corresponding to unobstructed user utterances, receiving second audio data corresponding to first obstructed user utterances, generating a frequency loss (FL) model representing frequency loss between the first audio data and the second audio data, receiving third audio data corresponding to one or more second obstructed user utterances, processing the third audio data using the FL model to generate fourth audio data corresponding to a frequency loss mitigated version of the second obstructed user utterances, and transmitting the fourth audio data to a recipient computing device. The first obstructed user utterances are obstructed by a facemask and the one or more second obstructed user utterances is obstructed by the facemask. The FL model may be executed as an audio plugin in a web conferencing program.

Abstract: A system and method for removing contaminates from greywater that uses carbon dioxide (CO2) and a system that adjusts the pH between 6 and 9. The filtration system is cost effective, quick, and easy to use, resulting in purified water.

Abstract: The present disclosure presents a patient respiratory mask that is configured to pick up patient speech from within the patient respiratory mask utilizing a microphone and to transmit that speech to a speaker or other communications device and a method of patient communication utilizing the same.

Abstract: Disclosed herein are breathing disorder identification, characterization and diagnosis methods, devices and systems. In general the disclosed methods, devices and systems may rely on the characterization of breath sound amplitudes, periodic breath sounds and/or aperiodic breath sounds to characterize a breathing disorder as obstructive (e.g. obstructive sleep apnea—OSA) or non-obstructive (e.g. central sleep apnea—CSA).

Abstract: The present disclosure relates generally to providing a flexible patch and system for communicating through hard plastic masks such as CPAP/BiPAP® masks. Using electronic circuitry and novel designs, the present systems and methods can detect speech vibrations and output audible speech from hard plastic mask wearers. For example, in certain embodiments, the present systems and methods can recognize speech through a CPAP/BiPAP® mask, filter out non-human voice related noise, and output the resulting speech of the mask wearer.

Abstract: An endotracheal tube is disclosed that allows a patient to speak while intubated. The endotracheal tube includes a balloon for seating against the trachea and a collapsible portion proximal to the balloon that aligns with the vocal cords. The collapsible portion may be held open by an inner tube which translates within the endotracheal tube. Suction and balloon inflation conduits span the collapsible portion so that suction and balloon inflation may be performed while the patient is speaking. A small distal tube that bypasses the balloon provides some airflow while the patient speaks.

Abstract: A patient interface for delivering breathable gas to a patient includes a sealing portion adapted to form a seal with the patient and a support portion to which the sealing portion is mounted. A first headgear chord is connected to a first side of the support portion, and a second headgear chord connected to a second side of the support portion. Headgear is adapted to connect to the first and second headgear chords to secure the support portion to a head of the patient. At least one adjustment device on the support portion is adapted to selectively move the first and second headgear chords to tighten or loosen the headgear.

Abstract: An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

Abstract: A vent system for use during respiratory therapy with a flow of pressurized gas may provide a continuous vent flow of gas. The vent system may include a vent housing having an outer wall; an inner wall, the inner wall defining an inlet for the flow of gas; and a base positioned between the outer wall and the inner wall, the base having at least one first orifice and at least one second orifice. The vent system may include a membrane, the membrane being shaped and dimensioned such that the membrane does not cover the at least one first orifice to allow the vent flow through the at least one first orifice, and the membrane being shaped and dimensioned such that in a first position the membrane is positioned over the at least one second orifice to allow the vent flow through the at least one second orifice.

Abstract: A respiratory equipment for an aircraft, a pilot or first officer of the aircraft forming a user of the respiratory equipment, the respiratory equipment comprising a head armature, configured to be worn on the user's head, a respiratory mask configured to be applied, in a use position around the mouth and nose of a user, an inflatable harness configured to be coupled to a pressurized gas source, an inflation of the inflatable harness causing an extension of the inflatable harness such that the respiratory mask can be brought opposite the mouth and nose of a user, and a purge of the inflatable harness causing a constrained application of the inflatable harness against the mouth and nose of a user, wherein the head armature comprises at least an occipital member, and a front cradle for receiving and lodging the respiratory mask in a waiting position, wherein the inflatable harness is fixed to the occipital member and the inflatable harness is coupled to the respiratory mask.

Abstract: A mask for use in providing a flow of a treatment gas to the airway of a user. The mask includes a frame and a conformable seal which is structured to sealingly engage about at least one of at least a portion of nose or mouth of the user. The frame includes a front face and a concave shaped rear face which faces the user when the mask is disposed on the user's face. The rear face defines a cavity which is structured to receive at least one of a portion of a nose and/or mouth of the user therein. The frame also includes a number of deformable zones, each deformable zone being structured to receive a removable insert. Each deformable zone is structured to adapt to at least one of a size or shape of the removable insert received therein.

Abstract: The present invention provides methods and systems for a breathing system, comprising breathing apparatus having a rigid base structure having a top portion, a bottom portion, an internal surface, and an external surface, wherein the top portion contains an arcuate section for covering a user's nose and the bottom portion is wider than the top portion for covering a user's mouth, the base structure contains an outer edge. A facepiece is engaged to the outer edge of the base structure and surrounds the base structure. A side passageway is disposed on a side of the base structure and is surrounded by a rim on the external surface of the base structure that extends outwardly from the external surface. A hose attachment device is selectively secured to the rim. The system also includes a storage device, and an oxygen supply.

Abstract: The present disclosure presents a communication device configured to removably attach to a mask, and to receive, transmit, and amplify sound and/or speech from a wearer.

Abstract: The present disclosure relates generally to providing a flexible patch and system for communicating through hard plastic masks such as CPAP/BiPAP® masks. Using electronic circuitry and novel designs, the present systems and methods can detect speech vibrations and output audible speech from hard plastic mask wearers. For example, in certain embodiments, the present systems and methods can recognize speech through a CPAP/BiPAP® mask, filter out non-human voice related noise, and output the resulting speech of the mask wearer.

Abstract: A personal protection system (30,178,290) including a helmet (32,180) to which a garment (102,236) is mounted. The helmet (32,180) includes an electrically powered assembly such as a fan (92,266,268,272). At least one button (120,134,262,264) for regulating operation of the electrically powered assembly (92,266,268,272) is mounted to the face shield (110,240) of the garment (102,236). The helmet (32,180) includes a detector (85) that is connected to and monitors the state of the button (120,134,262,264). When the button (120,134,262,264) is depressed, the detector (85) sends a signal to a controller (88) that regulates the actuation of the electrically powered assembly. The controller (88) then sets the operating state of the assembly (92,266,268,272) so that the assembly (92,266,268,272) operates in the state desired by the individual wearing the personal protection system (30,178,290) based on the depression of the control button (120,134,262,264).

Abstract: A conduit for delivering a supply of gas under a positive pressure includes a conduit wall having a first conduit end and a second conduit end. The first conduit end is adapted to be attached to the supply of gas. The conduit wall is deformable between (a) an open condition in which the conduit wall defines a conduit passage along which the supply of gas can travel between the first conduit end to the second conduit end, and (b) a collapsed condition in which the conduit wall substantially collapses the conduit passage.

Abstract: A method and system for personal protective equipment, such as a respirator mask, having a nosecup that is removably coupled to the item of personal protective equipment by at least one of an electronics housing and at least one voicemitter. A respirator mask includes a frame including a voicemitter aperture, a voicemitter, and a nosecup removably coupled to the frame by a rotation of the voicemitter by a predetermined amount to removably lock the nosecup to the frame voicemitter aperture. The mask further includes electronics components, which are housed in an annular electronics housing located within the front portion of the mask body 14 and in contact with a front portion of the nosecup. The nosecup may further be removably coupled to the mask frame by coupling between the annular electronics housing and the mask frame.

Abstract: A mask assembly for delivering breathable gas to a patient may include a patient interface structured to engage the patient's face and provide a seal, a headgear arrangement to support the patient interface in a desired position on the patient's face, and an audio unit provided to at least one of the patient interface and the headgear arrangement. The audio unit may be operable to selectively generate at least one sound.

Abstract: Provided is self-identifying personal protective equipment and methods of monitoring the same. The personal protective equipment may include a wireless tag positioned on or incorporated into an individual's face piece and a wireless tag reader positioned on or incorporated into the breathing apparatus of the personal protective equipment. The wireless tag reader may transmit an interrogation signal to the wireless tag upon actuation of the breathing apparatus, such as actuation of the flow of air through the breathing apparatus to the face piece. The face piece may then be identified automatically with the use of the personal protective equipment.

Abstract: A method of operating a device for treating sleep disordered breathing (SDB), wherein the device provides continuous positive airway pressure during sleep, includes applying a treatment pressure to a patient, monitoring the patient for speech output, generating a signal in response to detected speech of the patient, and, in response to the signal, reducing the treatment pressure applied to the patient.

Abstract: The present disclosure relates generally to providing a flexible patch and system for communicating through hard plastic masks such as CPAP/BiPAP® masks. Using electronic circuitry and novel designs, the present systems and methods can detect speech vibrations and output audible speech from hard plastic mask wearers. For example, in certain embodiments, the present systems and methods can recognize speech through a CPAP/BiPAP® mask, filter out non-human voice related noise, and output the resulting speech of the mask wearer.

Abstract: A respirator device and method for configuring the respirator device are provided. The respirator device includes at least one respirator element and a communications device. The commination device including a memory configured to store at least one setting of the communication device. The communication device including processing circuitry in communication with the memory and the communication device. The processing circuitry is configured to receive at least one audible tone and modify at least one setting of the communication device based on the received at least one audible tone. The communication device configured to operate according to the modified at least one setting.

Abstract: An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

Abstract: An infinitely adjustable training mask for simulating the increased breathing resistance level at higher altitudes including an air-impermeable mask body covering the nose and mouth of the wearer, an infinitely adjustable inhalation resistance assembly extended through the mask body, a replaceable particulate air filter to provide respiratory protection when the wearer inhales, and a drinking device for hydration and consumption of foods. The inhalation resistance assembly contains a stationary aperture component and a rotating dial aperture component for adjusting the sizes of the overlapping inhalation adjustment apertures to achieve the desired breathing resistance level. Upon exhalation of the wearer, the exhaled air is discharged through a flexible one-way check valve controlled exhalation channel.

Abstract: A headset mountable microphone shield for obscuring the lips of a wearer of a conventional headset with hands free microphone. The headset mountable microphone shield includes a shield body which defines a planar member sized to obscure the mouth of a person and which is integrated with a clip member which defines an elongated limb with a front side and a back side. The clip member is attachable to a stem which connects a hands free microphone to a conventional headset through a pair of clips on its back side and secured in place with fastening screws which operate in conjunction with the clips. As such, a user can slide the stem into the clips and tighten the fastening screws, thereby wedging the stem against the clip such that it is held in place.

Abstract: A system comprising an unmanned aerial vehicle (UAV) configured to transition from a terminal homing mode to a target search mode, responsive to an uplink signal and/or an autonomous determination of scene change.

Abstract: A personal protection system for providing a sterile barrier around medical/surgical personnel. The system includes a helmet over which a hood or a toga suspended. A microphone, an amplifier and a speaker are mounted to the helmet. Speech of the individual wearing the personal protection system is picked up by the microphone and amplified speech is broadcast by the speaker. The speaker is outwardly directed so as to broadcast the speech out through the hood or toga covering the helmet.

Abstract: Speech enhancement apparatus and respirator masks including speech enhancement apparatus, as well as methods of enhancing speech transmission for the wearer of a respirator mask are described herein. In one or more embodiments, the speech enhancement apparatus and methods described herein detect acoustic energy within a first frequency range in the clean air envelope of a respirator mask and deliver compensating acoustic energy outside of the clean air envelope using a speaker. The compensating acoustic energy is, in one or more embodiments, delivered in one or more predetermined attenuated frequency ranges that cover less than all of the detected first frequency range. In one or more embodiments, the compensating acoustic energy may be delivered with an attenuated amplitude profile that uniform or that is non-uniform over the one or more attenuated frequency ranges.

Abstract: The present disclosure relates generally to providing a flexible patch and system for communicating through hard plastic masks such as CPAP/BiPAP® masks. Using electronic circuitry and novel designs, the present systems and methods can detect speech vibrations and output audible speech from hard plastic mask wearers. For example, in certain embodiments, the present systems and methods can recognize speech through a CPAP/BiPAP® mask, filter out non-human voice related noise, and output the resulting speech of the mask wearer.

Abstract: The privacy-preserving energy-efficient speaker implementations described herein improve user privacy while a user is listening to audio and can reduce the energy necessary to output the audio. This can be done by using parametric speakers and/or traditional loud-speakers. Signal splitting and masking can be used to improve user privacy. Additionally, a signal modulation technique which significantly reduces power requirements to output an audio signal, especially in the context of using parametric speakers, can also be employed.

Abstract: A respirator filter connection mechanism with a first attachment element, the first attachment element associated with a respirator mask. The mechanism has a second attachment element which is associated with a filter. It also has openings provided through the first and second attachment elements and configured to be aligned with an inlet or discharge port of the mask and an inlet or discharge port of the filter. One of the first and second attachment elements includes a spring element located proximate to a corresponding opening, while another the first and second attachment elements includes an attachment shelf located proximate to a corresponding opening. The spring element is configured to be linearly advanced into initial engagement with the attachment shelf until the spring element and attachment shelf couple to one another in an intermediate loaded position.

Abstract: Embodiments of the disclosure relate to systems and methods for isolating a base station beacon and gas reading transmission channel(s) based on a single radio wireless gas detection system. A gas detector may communicate on a first channel (e.g. a beacon channel) constantly listening to the base station beacon information. At a pre-defined interval (e.g. every 60 seconds), the gas detector radio may switch to a second channel (e.g. a data channel) to transmit gas reading data as well as the base station information to a central server. Software on the server may complete a triangulation algorithm to determine the location of the gas detector, using information obtained by the detector from the beacons.

Abstract: Described in detail herein are methods and systems for identifying actions performed by a forklift based on detected sounds in a facility. An array of microphones can be disposed in a facility. The microphones can detect various sounds and encode the sounds in an electrical signal and transmit the sounds to a computing system. The computing system can determine the sound signature of each sound and based on the sound signature the chronological order of the sounds and the time interval in between the sounds the computing system can determine the action being performed by the forklift which is causing the sounds.

Abstract: An LED light and communication system in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver. The optical transceiver includes a light support having a plurality of light emitting diodes and at least one photodetector attached thereto, and a processor. The processor is in communication with the light emitting diodes and the at least one photodetector. The processor is constructed and arranged to generate a communication signal. The at least one optical transceiver is engaged to a clock, and the clock is in communication with the broadband over power line communications system.

Abstract: Provided is a valve, relating to the mechanical equipment technical field, comprising a valve body provided with a passage configured for allowing a fluid to pass through and a valve core disk provided within the passage and rotatable relative to the valve body. The valve core disk is provided with through holes and has one side face provided with a one-way diaphragm which is used for sealing the through holes in one direction to enable the valve core disk to seal the passage in one direction. Since the valve core disk can rotate relative to the valve body, one-way-inflation and -deflation can be realized, and during deflation, the passage can be opened for deflation just by rotating the valve core disk. Users can adjust a deflating speed by rotating the valve core disk. The valve not only has a simple structure, but also is convenient for the user to deflate.

Abstract: A respiratory protection device in which a plurality of filter units are provided. A respiratory protection device includes a plurality of filter units. Air flow paths that extend to the facepiece are provided in respective filter units. An inhalation port leading in the facepiece is provided at a portion where the air flow paths merge. The inhalation port can be temporarily closed by using an inspection valve included in the fit checker.

Abstract: An electromagnetic induction wireless transceiver system including: a magnetic antenna; an electric antenna including first and second plates, the first plate being connectable to a body; and a power driver configured to produce a modulating signal used to drive the magnetic antenna and the electric antenna to produce electromagnetic induction fields, wherein the transceiver when connected to a body in a first location is configured to transmit power to a second electromagnetic induction wireless transceiver connected to a second location a distance from the first location, wherein the first and second locations are connected through magnetic and electric near-field coupling.

Abstract: An electromagnetic induction wireless transceiver system including: a magnetic antenna; an electric antenna including first and second plates, the first plate being connectable to a body; and a power driver configured to produce a modulating signal used to drive the magnetic antenna and the electric antenna to produce electromagnetic induction fields, wherein the transceiver when connected to a body in a first location is configured to transmit power to a second electromagnetic induction wireless transceiver connected to a second location a distance from the first location, wherein the first and second locations are connected through magnetic and electric near-field coupling.

Abstract: Underwater communication systems, underwater speakers, underwater microphone assemblies and associated methods are described. According to one aspect, an underwater speaker includes a housing, a transducer member coupled with the housing and positioned to contact a body of water, wherein the transducer member is configured to vibrate to generate sound pressure waves within the body of water which comprise content which is audible to humans within the body of water, and an exciter coupled with the transducer member and configured to impart forces to the transducer member to cause the vibration of the transducer member to generate the sound pressure waves in the body of water as result of a received electrical signal which comprises the content.

Abstract: Embodiments provide methods for storing a respiratory mask. In one embodiment, the respiratory equipment may include a respiratory mask having a front side and a rear side and a cavity having an opening in the rear side. There may also be provided an inflatable harness adapted to maintain the respiratory mask against the user face, and a storage element comprising a housing In one embodiment, the method may include pulling on the harness on the front side of the respiratory mask in order to place the harness on the respiratory mask in an storage position outside said cavity, and maintaining the harness on the respiratory mask in the storage position and inserting the respiratory mask into the housing of the storage element.

Abstract: A method and apparatus are described for providing an acoustically-resistive air-permeable venting structure within a sealed microphone acoustic cavity. A microphone is mounted on a printed circuit board and positioned within a housing. A water-resistant membrane seals the microphone from an exterior of the housing, and a active acoustic cavity establishes an acoustical connection between the water-resistant membrane and the microphone. An acoustically-resistive air-permeable venting structure is formed in the body of the printed circuit board and connects to the active acoustic cavity either directly or via a separate vent path. The venting structure provides a viscous dampening effect by venting an active acoustic cavity of the electronic device to the rest of the enclosure sealed by the water-resistant membrane.

Abstract: A respiratory protection device is provided that allows the wearers of a facepiece to smoothly have a conversation with each other. A respiratory protection device includes a facepiece. The protection device also includes a voice amplifier that includes a microphone and a speaker therein, a detection unit that directly or indirectly detects the inner pressure of the facepiece, a power source unit, and a control unit. The control unit controls so as to place the voice amplifier in an operational state or a non-operational state, based on a result of comparison of information from the detection unit with a determination reference in the control unit.

Abstract: A system and method for applying a construction material is provided. The method may include mixing blast furnace slag material, geopolymer material, alkali-based powder, and sand at a batching and mixing device to generate a non-Portland cement-based material. The method may also include transporting the non-Portland cement-based material from the mixing device, through a conduit to a nozzle and combining the transported non-Portland cement-based material with liquid at the nozzle to generate a partially liquefied non-Portland cement-based material. The method may further include pneumatically applying the partially liquefied non-Portland cement-based material to a surface.

Abstract: An electronic device having a microphone behind a water resistant, air-impermeable membrane is disclosed. Embodiments include a trapped volume of air between the membrane and the microphone. A barometric equalization element may define an acoustic leak path, e.g., a tortuous leak path, between the trapped volume of air and an encased space within a casing of the electronic device. Other embodiments are also described and claimed.

Abstract: A mobile electronic device includes: a housing; an acoustic-component contained in the housing; a sound hole formed in the housing, the sound hole being configured to allow communication between an inside and an outside of the housing; a non-breathable waterproof film disposed inside the housing, the waterproof film being configured to cover the sound hole; a compressible member compressed by being pressed against the housing during assembly of the acoustic-component to the housing, the compressible member being configured to form an acoustic-component chamber together with at least the waterproof film, the acoustic-component chamber being configured to hermetically seal the acoustic-component; and an opening configured to allow communication between an inside and an outside of the acoustic-component chamber within the housing, the opening being configured to allow air in the acoustic-component chamber to escape to the outside before the opening is closed in the process of compressing the compressible member.

Abstract: An electrical amplifier unit which removably attaches to a gas mask and includes a microphone for detecting voice sounds emitted by the wearer of the gas mask, circuitry for amplifying the detecting sound, and a loudspeaker for emitting the amplified sounds externally of the mask. The associated components are contained within a housing that attaches sealably to the outlet port of a gas mask. The amplifier unit is quickly and easily attachable to commercially available gas masks without additional hardware and does not affect the structural and functional integrity of the host mask.

Abstract: A protective apparel support (100) system is disclosed comprising a support frame configured to rest on the shoulders of a wearer, the support having a first shoulder member (104a), a second shoulder member (104b) and a shield (202) engagement portion. A shield (202) is selectively coupleable to the support and protective apparel (302) is coupled to the shield.

Abstract: A respiratory mask body having a nose region including a seal and a support extension is provided. In an exemplary embodiment, the mask body has a nose region including a support extension which extends in a direction away from the seal and is configured to contact a user's nose at a position beyond the seal.

Abstract: A Universal Serial Bus (USB) dongle may include an optical transceiver having a USB interface for engagement to an electronic device such as a laptop computer or other USB-configured device. The USB dongle may include a converter or buffering, isolation, modulation or amplification circuitry. The USB dongle sends and receives data signals which may be carried upon an optical transmission as generated by an LED light source which in turn is in communication with a host device such as a network processor. The USB dongle may also include operational amplifiers (op-amps) and transistor amplifiers.

Abstract: The present invention provides wireless charging methods and systems for powering game controllers. The methods and systems may include one or more transmitters and one or more receivers. In some embodiments the transmitters and receivers may be embedded to game console and game controllers, respectively. In other embodiments, the transmitters and receivers may be connected as a separate device to the game console and game controllers, respectively. The method may include wireless power transmission through suitable techniques such as pocket-forming utilizing sound waves.