The present disclosure provides a microphone including: a substrate having an acoustic hole; a vibration membrane formed on the substrate; an electromagnetic inducing layer with a predetermined pattern formed on a lower surface of the vibration membrane corresponding to the acoustic hole; a first electrode formed on an upper surface of the vibration membrane; a first fixing layer and a second fixing layer spaced apart from the vibration membrane; a second electrode having a plurality of through-holes formed at a lower surface of the first fixing layer; a first coil interposed between the first fixing layer and the second fixing layer, wherein the first coil is formed as a spiral shape extending outwardly from a center thereof; and a second coil bonded to an upper surface of the second fixing layer, wherein the second coil is formed as a spiral shape extending outwardly from a center thereof.

A cylindrical member holding apparatus which is flexible in an axial direction of a cylindrical member and resists being deformed in directions perpendicular to the axial direction of the cylindrical member. A plurality of elastically-deformable supporting portions are disposed on respective opposite sides of the cylindrical member held by a holder portion in a direction of an axis of the cylindrical member and connect a base portion and the holder portion together. The supporting portions have such a shape as to be more easily elastically deformed in a first direction than in a second and third direction. The first direction is the axial direction of the cylindrical member, the second direction is a direction that is perpendicular to the first direction and connects the holder portion and the base portion together, and the third direction is perpendicular to the first direction and also perpendicular to the second direction.

Provided is a device for simultaneously communicating with a first wireless communication device and a second wireless communication device. A microphone is housed within the device and circuitry therefor is included in the device, and preferably housed within the device. The device form-fits generally over a user's mouth and nose and has an air tube extending substantially the length of the device, within the interior of the device, to relieve back-pressure. The device is shaped to promote attenuation of sound within the device, and is constructed to reduce uptake of outside, extraneous sound by the microphone. The circuitry comprises one or more processors, an audio capture module, power management module, listening output module, and data storage module. The device also has a touch screen interface.

A speaker mount, assembly, and method of disengagement including a flange that circumscribes a perimeter of the mount. The speaker mount includes a support member coupled to the flange. The speaker mount includes a tab moveably coupled to the support member. The speaker mount includes a tab bias member functionally coupled to the tab. The speaker mount includes a path guide functionally coupled to the tab and to the support member. The path guide includes a vertical pathing and a rotational pathing that is substantially orthogonal to the vertical pathing. The speaker mount includes a blocking member functionally coupled to the tab such that in a blocking mode the blocking member obstructs free movement of the tab along the path guide and in a free mode does not obstruct.

A unidirectional condenser microphone unit includes a unit case that includes a diaphragm that vibrates upon receiving a sound wave, a fixed electrode disposed to face the diaphragm, an insulating base that supports the fixed electrode to form a back air chamber between the insulating base and the fixed electrode and a fixed electrode leading terminal made of metal that is attached to the insulating base, and that leads a signal voltage generated at the fixed electrode, wherein the unit case is provided with a front acoustic terminal hole formed in a front side of the diaphragm and a rear acoustic terminal hole for communication with the back air chamber, wherein the unit case has a second air chamber different from the back air chamber and the fixed electrode leading terminal is provided with a communication path between the back air chamber and the second air chamber.

A unidirectional condenser microphone unit includes a unit case that includes a diaphragm that vibrates upon receiving a sound wave, a fixed electrode disposed to face the diaphragm, an insulating base that supports the fixed electrode to form a back air chamber between the insulating base and the fixed electrode and a fixed electrode leading terminal made of metal that is attached to the insulating base, and that leads a signal voltage generated at the fixed electrode, wherein the unit case is provided with a front acoustic terminal hole formed in a front side of the diaphragm and a rear acoustic terminal hole for communication with the back air chamber, wherein the unit case has a second air chamber different from the back air chamber and the fixed electrode leading terminal is provided with a communication path between the back air chamber and the second air chamber.

A microphone device includes a microphone unit that outputs an electrical signal upon receipt of a sound wave, a microphone case that supports the microphone unit in its inside with cushioning members formed of an elastic material (rubber material), and a microphone cable that supplies the electrical signal from the microphone unit to an output connector attached to the microphone case. A part of the microphone cable is attached in a state of meandering back and forth once or more between one surface and the other surface of the rear cushioning member formed in a flat manner. This configuration allows to suppress transmission of vibration through the microphone cable connected to the microphone unit and prevent generation of vibration noise due to free vibration of the microphone cable.

A microphone system has a package with a top, a bottom, and four sides that at least in part form an interior chamber. One of the sides forms an inlet aperture for communicating the inlet chamber with the exterior environment. The system also has first and second microphone dies, in a stacked relationship, respectively having a first and second diaphragms. A circuit die, positioned in electrical communication with the first and second microphone dies, is configured to mitigate vibrational noise from the first microphone die using a signal produced by the second microphone die or vice versa. The first and second microphone dies are positioned so that the first and second diaphragms are substantially the same distance from the inlet aperture in the side.

A head-mounted display assembly with a headphone retention mechanism. The head-mounted display assembly includes a display housing, a headphone assembly, a headphone storage region located on the body of the display housing, and a headphone retention mechanism at the headphone storage region. The headphone retention mechanism includes a magnetic element configured to produce a magnetic field that releasably retains the headphone assembly against the headphone storage region when a user positions the headphone assembly in the vicinity of the headphone storage region.

A microphone and method for manufacturing the microphone are provided. The microphone includes a substrate with a penetration aperture, a vibration unit disposed on the substrate to cover the penetration aperture, and a fixed electrode disposed over, and spaced from, the vibration unit. Further, the vibration unit includes a first portion and a second portion disposed on the penetration aperture, and a third portion disposed on the substrate. In addition, the first portion and the third portion are spaced from each other, and the second portion is connected between the first portion and the third portion, and includes a first piezoelectric portion and a second piezoelectric portion.