An apparatus and method wherein the apparatus comprises: a covering portion configured to cover at least part of an electronic device; and an audio transducer; and a flexible portion comprising at least one conductive trace wherein the flexible portion is configured to connect the audio transducer to the covering portion and the at least one conductive trace is configured to electrically connect the audio transducer to circuitry within the electronic device.

A microphone device including a first sound receiving module, a second sound receiving module and a sound collecting trough is provided. The first sound receiving module receives a sound signal to output a first electronic signal. The second sound receiving module receives the sound signal to output a second electronic signal. The first sound receiving module is coupled to the second sound receiving module, and the phase of the first electronic signal and the phase of the second electronic signal are inverse to each other. A distance between the first sound receiving module and the sound collecting trough is smaller than a distance between the second sound receiving module and the sound collecting trough, and another sound signal is transferred to the first sound receiving module through the sound collecting trough.

A receiver including a housing defining a chamber, and a motor assembly that includes a magnet assembly and an armature. The receiver includes a diaphragm operationally attached to the armature. The motor assembly is attached to the housing by a movable suspension structure. A method of reducing vibrations includes providing a housing defining a chamber, providing a motor assembly including a magnet assembly and an armature, providing a diaphragm, providing a movable suspension structure, attaching the diaphragm to the armature, and attaching the motor assembly to an inner wall of the housing by the movable suspension structure.

A receiver including a housing defining a chamber, and a motor assembly that includes a magnet assembly and an armature. The receiver includes a diaphragm operationally attached to the armature. The motor assembly is attached to the housing by a movable suspension structure. A method of reducing vibrations includes providing a housing defining a chamber, providing a motor assembly including a magnet assembly and an armature, providing a diaphragm, providing a movable suspension structure, attaching the diaphragm to the armature, and attaching the motor assembly to an inner wall of the housing by the movable suspension structure.

In a unidirectional dynamic microphone unit, a cylindrical tube is provided to cover the microphone unit, a cylindrical wall of a first cylindrical portion that is included in the cylindrical tube and extends to at least the rearward is provided with a rear sound wave introducing portion weighted such that an acoustic resistance value is gradually made smaller toward the rearward side from positions of sound holes for taking in a sound wave transmitting around from the rearward side, preferably formed of a trumpet-shaped opening, and it is possible to enhance the sensibility to sound pressures without degradation of the frequency response and the directionality.

A sound output device which can be fitted flush to match shape and contour of a desired housing device includes an arc-shaped shell as the housing, a mainboard, at least one first sound output unit, at least one second output unit, and at least one conductive distance piece. The arc-shaped shell defines sound output holes. The first sound output unit is located on one side of the mainboard close to the at least two sound output holes. The at least one second output unit is located above the conductive distance piece on the side of the mainboard close to the sound output holes. The conductive distance piece elevates the at least one second sound output unit to the same level as that of the first sound output unit, or to some other level required for the particular shape of the arc-shaped shell.

In various embodiments, a method for operating a sensor is provided. The method includes intermittently generating an operating current in the sensor, generating a reactive current in the sensor when the operating current is not generated, and not generating the reactive current when the operating current is generated. A value of the reactive current is the same or approximately the same as a value of the operating current.

In various embodiments, a method for operating a sensor is provided. The method includes intermittently generating an operating current in the sensor, generating a reactive current in the sensor when the operating current is not generated, and not generating the reactive current when the operating current is generated. A value of the reactive current is the same or approximately the same as a value of the operating current.

To obtain a unidirectional microphone with high sound quality, which achieves unidirectivity while preventing deterioration in sound quality of a ribbon microphone. A unidirectional condenser microphone and bi-directional ribbon microphones are included, and the unidirectional condenser microphone and the bi-directional ribbon microphones are disposed such that a 0 direction of a sound collecting axis of the unidirectional condenser microphone accords with a 180 direction of sound collecting axes of the bi-directional ribbon microphones, and an output of the unidirectional condenser microphone is subtracted from an output of the 180 direction of the bi-directional ribbon microphones.

A microphone includes a microphone unit configured to convert a sound wave into an electrical signal. A cylindrical housing accommodates the microphone unit, and includes a a first opening portion that transmits the sound wave to the microphone unit. A sheet member having an air-permeable property and a water-repellent property covers the first opening portion. A frame including a second opening portion having a shape corresponding to a shape of the first opening portion covers the sheet member at a position of the first opening portion. A wind screen having a drainage property covers an exterior of the housing.