Abstract:
본 발명은 스피커 유닛에 관한 것으로 임피던스의 변동성을 줄여 음향 신호 재현의 왜곡 현상을 적절하게 제어하는 기술을 제공하는 목적이 있으며, 아마추어와 코일을 사이에 댐핑 부재를 마련하여 고음역대의 특정 대역에서 의도하지 않은 임피던스의 급격한 변동성을 감소시킴으로서 고음역대의 임피던스 피크를 상대적으로 평탄하게 하여 음향 신호 재현의 왜곡 현상을 적절히 제어함으로써, 고음역대에서 깔끔하고 시원한 음향 재현을 제공할 수 있으며, 스피커 유닛이 외부 충격을 받았을 때 충격을 흡수하여 아마추어 등의 변형을 방지할 수 있도록 할 수 있는 효과가 있다.
Abstract:
An acoustic device and method generates an acoustic signal by applying an excitation signal to a first coil disposed about an armature of an acoustic receiver. A second coil magnetically coupled to the first coil generates an electrical output signal in response to the excitation signal applied to the first coil, wherein the output signal of the second coil is indicative of a change in a state or operation of the receiver or acoustic device. In some embodiments, the first and second coils are wired independently of each other, and the acoustic device further includes an electrical circuit which determines the change in the acoustic performance based on a change in the electrical output signal of the second coil.
Abstract:
A printed wiring board (1) for use in an electronic device (10), the printed wiring board comprising at least one integrated circuit (15) and a voice coil (3), the voice coil (3) being formed integrally with the printed wiring board (1). Integrating the voice coil into the printed wiring board improves dissipation of heat generated by the voice (3) coil and removes the need for additional supporting means.
Abstract:
A magnet actuator (1) for use in an electronic device, comprising a first magnet arrangement (2), a second magnet arrangement (3), comprising a first magnet (3a) and a second magnet (3b), and a coil (4) arranged between the first magnet arrangement (2) and the second magnet arrangement (3). The first magnet arrangement (2) and the second magnet arrangement (3) are arranged so that magnetic fields, generated by the first magnet arrangement (2) and the second magnet arrangement (3), causes an attractive force (F1) and a repulsive force (F2) between the first magnet arrangement (2) and the second magnet arrangement (3), which maintain the first magnet arrangement (2) and the second magnet arrangement (3) in a force equilibrium state.
Abstract:
Apparatus and methods are described herein that provide a vibratory device that can apply a vibratory signal to a portion of a head of a user such that the vibratory signal can be conducted via bone to a vestibular system of the user and cause a portion of the vestibular system to move in a manner equivalent to that of a therapeutically effective vibratory signal applied to an area overlaying a mastoid bone of the user. The vibratory device can be associated with frequencies less than 200 Hz. The vibratory device can be effective at treating a physiological condition associated with the vestibular system.
Abstract:
In accordance with one aspect, a diaphragm for an acoustic receiver is provided that includes a frame, a paddle flexibly coupled to the frame, and a gap between a portion of the paddle and the frame. The diaphragm further includes siloxane material coupled to at least a portion of the paddle and to at least a portion of the frame. The siloxane material covers the gap. In another aspect, a method is provided for making an acoustic receiver diaphragm.
Abstract:
A pre-distorted electrical excitation signal is generated for an acoustic transducer having an armature and a non-linear transfer characteristic by applying an electrical input signal (x) representative of a desired acoustic output to a computable non-linear function that is a function of the electrical input signal (x). When applied to an input of the transducer, the pre-distorted electrical excitation signal results in an improved acoustic output signal.