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Techniques for generating audio signals

A technology of audio signal and acoustic signal, which is applied in the direction of loudspeaker, frequency/direction characteristic device, semiconductor electrostatic transducer, etc.

Active Publication Date: 2014-04-30
EMPIRE TECH DEV LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The shutter is configured to modulate the ultrasonic acoustic signal such that an audio signal is generated

Method used

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  • Techniques for generating audio signals
  • Techniques for generating audio signals
  • Techniques for generating audio signals

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Embodiment Construction

[0016] In the following detailed description, reference is made to the accompanying drawings, which form a part of this specification. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein. It is readily understood that the various aspects of the disclosure, as generally described herein and illustrated in the accompanying drawings, may be arranged, substituted, combined and designed in various configurations, which are expressly contemplated herein.

[0017] The present disclosure is generally described as methods, apparatus, systems, apparatus and computer program products relating to systems for generating audio signals, among other factors.

[0018] In some...

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Abstract

Techniques described herein generally relate to generating an audio signal with a speaker. In some examples, a speaker device is described that includes a membrane and a shutter. The membrane can be configured to oscillate along a first directional path and at a first frequency effective to generate an ultrasonic acoustic signal. The shutter can be positioned about the membrane and configured to modulate the ultrasonic acoustic signal such that an audio signal can be generated.

Description

technical field [0001] The present disclosure generally relates to techniques for generating audio signals, and in some examples, methods and apparatus for generating audio signals on mobile devices. Background technique [0002] Loudspeakers are devices that generate acoustic signals. Loudspeakers typically include electromagnetically actuated pistons that create localized pressure in the air. The pressure across the medium is an acoustic signal and is interpreted by the ear to be recorded as sound. Contents of the invention [0003] Some embodiments of the present disclosure may generally relate to a loudspeaker apparatus including a diaphragm and a shutter. The diaphragm lies in a first plane and is configured to oscillate along a first directional path and at a first frequency to generate ultrasonic acoustic signals. The shutter is located in a second plane substantially separate from the first plane. The shutter is configured to modulate the ultrasonic acoustic si...

Claims

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Application Information

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IPC IPC(8): H04R1/20H04R1/28H04R9/00
CPCH04R1/00H04R19/005H04R19/02H04R2201/003H04R2217/03H04R1/023Y10T29/49005G10K15/04H04R1/20H04R1/28H04R9/00H04R17/00H04R2499/11H04R1/22H04R31/00
Inventor 莫迪埃·马加利特
Owner EMPIRE TECH DEV LLC
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