Abstract: An electronic device is provided. The electronic device includes a housing comprising a front plate facing a first direction, a back plate facing a second direction that is opposite the first direction, and an outer wall which encompasses the space between the front plate and the back plate and in which a pipe passage extending to the outside is arranged, a speaker module positioned in the space, which is adjacent to the pipe passage, a printed circuit board arranged along at least a part of the side surface of the speaker module and formed along the periphery of the region between the outer wall, having the pipe passage, and the speaker module, and a first sealing member arranged between the back plate and a bracket and formed into a closed loop along the edge of the speaker module.

Abstract: A method for automatically training a machine learning system to detect and identify a sensor triggering event associated with an internet of things (IoT) device is provided. The method may include capturing sensor data and capturing sound clips associated with the IoT device. The method may further include identifying the sensor triggering event associated with the IoT device. The method may further include sending an alert of the identified sensor triggering event. The method may also include correlating the captured sensor data, the captured sound clips, and the identified sensor triggering event. The method may further include identifying a second sensor triggering event by determining similarities between the correlated data associated with the identified sensor triggering event and additional sensor and sound data that is captured based on the second sensor triggering event.

Abstract: A foldable display device is provided. The foldable display device includes a flexible display module, a bottom frame, middle frames, and a connecting member. Two ends of the connecting member are provided with filter components. An accommodating cavity is formed among the flexible display module, the middle frames and the bottom frame communicating with an external environment through the filter components, so as to prevent the dust generated by the friction of components of the connecting member and the dust entering the accommodating cavity from the external environment, thereby avoiding short circuits and display malfunction of the foldable display device.

Abstract: A shaped component made of technical fabric for protection of the speakers of electronic devices with waterproofing characteristics of IPx7 degree or higher, which have water-tight speakers. In addition to the function of protection from solid particles, the invention is optimised for guaranteeing fast and efficient draining-off of the water that has penetrated into the water-tight speaker so as to recover as fast as possible the initial acoustic functionality, in an improved way as compared to the solutions currently available. The component according to the present invention comprises within it one or more openings covered by synthetic technical fabric with hydrophilic treatment, to guarantee rapid exit of the water that has entered the speaker module, and one or more openings covered by synthetic technical fabric with hydrophobic treatment, to favour entry of air into the volume in front of the speaker, thus ensuring proper emptying thereof.

Abstract: An electronic device is provided. The electronic device includes a housing including a front plate, a rear plate, and a lateral member surrounding a space between the front and rear plates and having at least one through-hole. The electronic device further includes a display disposed to be seen through the front plate, and a speaker structure disposed near the through-hole in the space between the display and the rear plate. The speaker structure includes a yoke disposed between the display and the rear plate and facing the display, a diaphragm disposed between the rear plate and the yoke and spaced apart from the rear plate, a magnet disposed between the yoke and the diaphragm, a speaker housing surrounding, at least in part, at least one of the diaphragm, the yoke, or the magnet and including a first opening formed toward the rear plate and a second opening formed toward the through-hole.

Abstract: An electronic device is provided. The electronic device includes a housing including a front plate, a rear plate, and a lateral member surrounding a space between the front and rear plates and having at least one through-hole. The electronic device further includes a display disposed to be seen through the front plate, and a speaker structure disposed near the through-hole in the space between the display and the rear plate. The speaker structure includes a yoke disposed between the display and the rear plate and facing the display, a diaphragm disposed between the rear plate and the yoke and spaced apart from the rear plate, a magnet disposed between the yoke and the diaphragm, a speaker housing surrounding, at least in part, at least one of the diaphragm, the yoke, or the magnet and including a first opening formed toward the rear plate and a second opening formed toward the through-hole.

Abstract: A stethoscope with a body and a diaphragm comprising a flexible enclosure containing an incompressible liquid suspended in the stethoscope body with a reticulated foam pressure pad located below the diaphragm and inside an inner perimeter of the body. Optionally, the diaphragm has a cap over a top end of the suspended flexible enclosure, preferably made from copper in order to provide antimicrobial properties.

Abstract: An audio speaker having an adsorptive insert in a speaker back volume, is disclosed. More particularly, an embodiment includes an adsorptive insert having a rigid open-pore body formed by bonded adsorptive particles. The rigid open-pore body includes interconnected macropores that transport air from the speaker back volume to adsorptive micropores in the bonded adsorptive particles during sound generation. Other embodiments are also described and claimed.

Abstract: Techniques associated with structures for dynamically tuned audio in a media device are described, including receiving data associated with an acoustic output, determining a target frequency response associated with an audio device, the audio device implemented with a hybrid radiator formed using a smart fluid or artificial muscle material, determining a value associated with a property of the smart fluid or artificial muscle material, calculating, using a dynamic tuning application, a magnitude of an external stimulus associated with the value, and sending a control signal to a source, the control signal configured to cause the source to apply the external stimulus, an application of the external stimulus of the determined magnitude configured to change the property of the smart fluid or artificial muscle material.

Abstract: Techniques associated with structures for dynamically tuned audio in a media device are described, including a housing, a driver mounted to the housing and configured to produce acoustic energy, a hybrid radiator mounted to the housing and formed at least in part using a material configured to change one or more properties in response to an application of an external stimulus, and a source configured to apply the external stimulus to the hybrid radiator.

Abstract: An ultrasonic acoustic device includes a carbon nanotube structure. The carbon nanotube structure is capable of causing a thermoacoustic effect and generating ultrasonic sound wave in liquid medium.

Abstract: A thermoacoustic device. The thermoacoustic includes a carbon nanotube structure. The carbon nanotube structure is at least partly in contact with a liquid medium. The thermoacoustic device is capable of causing a thermoacoustic effect in the liquid medium.

Abstract: Silicon and glass micromachined (MEMS) acoustic sensors incorporating trapped-liquid architectures are disclosed. The trapped liquid serves as an acoustic transmission medium allowing the input port to the system to be physically separated from the sensing location. The trapped liquid interacts with a conductive, flexible sensing membrane. Sound pressure waves enter the trapped liquid through an input membrane, travel to the sensing membrane, and excite vibrations of the sensing membrane. The vibrations of the sensing membrane are measured using on-chip capacitive sensing. The capacitive sensing structure is formed by the conductive sensing membrane and a fixed conducting top electrode. As the gap between the conductive sensing membrane and the fixed top electrode varies, the capacitance varies, leading to an electrical signal which is the electrical output of the system.

Abstract: A device to transmit an audio signal to a user may comprise a mass, a piezoelectric transducer, and a support to support the mass and the piezoelectric transducer with the eardrum. The piezoelectric transducer can be configured to drive the support and the eardrum with a first force and the mass with a second force opposite the first force. The device may comprise circuitry configured to receive wireless power and wireless transmission of an audio signal, and the circuitry can be supported with the eardrum to drive the transducer in response to the audio signal, such that vibration between the circuitry and the transducer can be decreased. The transducer can be positioned away from the umbo of the ear to drive the eardrum, for example on the lateral process of the malleus.

Abstract: The invention relates to a drive unit for a loudspeaker, and a loudspeaker including the same. The drive unit includes a magnet assembly which defines primary and secondary gaps with respect to which a voice coil assembly is movable and in which the same is mounted. The voice coil assembly includes a former which is located and suspended in the secondary gap by ferrofluid provided in said secondary gap, to locate the voice coil assembly without the need for a spider or other mechanical locating means to be provided.

Abstract: At least embodiment is directed to an earpiece comprising a housing; and a field responsive fluid, where the field responsive fluid is in the housing, where the housing is part of the earpiece, and where the earpiece is configured to vary a field to vary an acoustical property of the field responsive fluid.

Abstract: A loudspeaker system comprises a cabinet, a speaker unit, a package body, a filler gas, and an absorbent. The speaker unit is mounted in the cabinet. At least one package body is disposed in a vacant space inside of the cabinet and is structured by a bag body for sealing materials thereinto from outside thereof. A predetermined amount of the filler gas is sealed into the package body. A predetermined amount of the absorbent is sealed into the package body and physically absorbs the filler gas.

Abstract: A device and method for mapping, diagnosing and treating the intestinal tract is provided using a capsule passing through the intestinal tract. Further, a capsule tracking system is provided for tracking a capsule's location along the length of an intestinal tract as various treatment and/or sensing modalities are employed. In one variation, an acoustic signal is used to determine the location of the capsule. A map of sensed information may be derived from the pass of a capsule. Capsules may be subsequently passed through to treat the intestinal tract at a determined location along its length. One variation uses an electrical stimulation capsule to treat and/or diagnose a condition in the intestinal tract.

Abstract: A voice coil wound to have a loop having an inner side is fixed to a diaphragm vibrating in a vibration direction. A first magnet having a first pole surface is fixed to an upper case. A second magnet having a second pole surface is fixed to a lower case. A first magnetic fluid is attached to the first pole surface of the first magnet after fixing the first magnet to the upper case. The diaphragm is fixed to the upper case after fixing the voice coil to the diaphragm and after attaching the first magnetic fluid to the first pole surface of the first magnet, such that the first pole surface of the first magnet faces the inner side of the voice coil and that the first magnetic fluid is provided between the first pole surface of the first magnet and the voice coil and contacts the first pole surface and the voice coil.

Abstract: Sound signals are detected. Light signals are generated that pass through a membrane of a bubble within a trench. The sound signals cause deformations within the membrane of the bubble. The light signals are detected after the light signals have passed through the membrane. The sound signals are reconstructed from the light signals detected by the optical detector.

Abstract: A pressure transducer which has a closed chamber which is full of oil or other non-compressible liquid. Pressure communicates with a diaphragm which defines one side of the closed chamber and the pressure communicates via the oil with a pressure sensor which is mounted within the oil spaced from the diaphragm. The liquid entered the closed chamber through a inlet hole with a selected volume driven into the closed chamber by a ball which is forcefully driven a selected distance into the inlet hole before stopping at the end of the inlet hole against a physical stop.

Abstract: Transducer (100, 200, 300, 500, 600) for converting mechanical vibrations to an electrical signal and/or for converting an electrical signal to mechanical vibration. Damping liquid (122, 222, 522, 622) damps the relative vibration of transducer components (110, 250, 252, 254, 510, 610). The damping liquid can be selected to optimize the sound quality of acoustic vibrations at the point of transduction. Also, a transducer with components that rotate relative to each other (304, 310, 504, 510, 604, 610). For example, a permanent magnet component may simultaneous vibrate rotationally and linearly with respect to an electric signal carrying coil. The characteristics of the rotational vibration may be adjusted to optimize sound quality of acoustic vibrations at the point of transduction.

Abstract: A transducer in communication with fluid in a pad held in close contact against a sound or movement source monitors acoustic signals transferred into the fluid. The signal pattern is monitored aurally and/or compared to predetermined reference patterns, and optional control and stimulation means can be activated in response to the comparison results. The sensed acoustic signal can be transmitted to a remote receiver or processed locally. Typically, the acoustic signal is representative of the heartbeat or breathing of a living organism. The monitoring system may be applied to diverse situations including SIDS, apnea, home baby monitoring, medical transport devices, blood pressure cuffs, seats, combat casualty care and hand-held devices.

Abstract: A sound speaker system has air chambers in a cylinder with a voice coil actuated vibrator and suitable inner wall speakers.

Abstract: A hydrostatic speaker includes an oscillator, a partition diaphragm disposed in the oscillator to divide the oscillator into two chambers, at least one of which chambers serves as a fluid chamber to cause the partition diaphragm to vibrate in response to external signals from a source, an acoustic sound radiation core connected with the partition diaphragm via a rod, a sensor for detecting fluid pressure in the fluid chamber and another sensor for detecting a movement of the partition diaphragm. The hydrostatic speaker is provided with a speaker driver which includes a fuild pressure controller connected to a pressure source for controlling the fluid pressure in the fluid chamber, and a control amplifier for controlling the fluid pressure controller in accordance with the external signals.