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Ultrasonic Audio Speakers and Transmitters

An audio speaker, ultrasonic technology, applied in the direction of sensors, electrostatic sensors, sensor types, etc., can solve problems such as poor sound

Active Publication Date: 2019-06-07
TURTLE BEACH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, two ultrasonic signals separated in frequency can result in a difference sound in the human hearing range of 60Hz to 20,000Hz

Method used

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  • Ultrasonic Audio Speakers and Transmitters
  • Ultrasonic Audio Speakers and Transmitters
  • Ultrasonic Audio Speakers and Transmitters

Examples

Experimental program
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Embodiment Construction

[0036] Embodiments of the systems and methods described herein provide HyperSonic Sound (HSS) audio systems or other ultrasonic audio systems for a variety of different applications. Certain embodiments provide thin film ultrasonic transmitters for ultrasonic carrier audio applications.

[0037] figure 1 is a diagram illustrating an ultrasonic sound system suitable for use with the systems and methods described herein. In this exemplary ultrasound system 1, audio content is received from an audio source 2 (eg, a microphone, memory, data storage device, streaming media source, CD, DVD, or other audio source). Audio content can be decoded and converted from digital to analog form depending on the source. The audio content received by the audio system 1 is modulated onto an ultrasonic carrier at frequency f1 using a modulator. The modulator typically comprises a local oscillator 3 for generating an ultrasound carrier signal and a multiplier 4 for modulating an audio signal ont...

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Abstract

An ultrasonic audio speaker includes a backing plate comprising a first major surface and a conductive region, the backing plate further comprising a plurality of textural elements disposed on the first major surface. A flexible layer disposed adjacent the first major surface of the backing plate includes a conductive region and an insulative region, wherein the flexible layer is disposed adjacent the backing plate such that the insulative region is positioned between the backing plate and the conductive region of the flexible layer, and such that there is a volume of air between the flexible layer and surfaces of the textural elements.

Description

technical field [0001] This description generally relates to parametric loudspeakers. More specifically, some embodiments relate to ultrasonic transmitters. Background technique [0002] The nonlinear conversion is the result of introducing a sufficiently dense, audio-modulated ultrasound signal into the air column. Self-demodulation, or down-conversion, occurs along the air column, resulting in the formation of an audible acoustic signal. This process occurs due to the known physical principle that, when two sound waves with different frequencies are radiated simultaneously in the same medium, a nonlinear (parametric) interaction of the two sound waves produces a sum comprising the two frequencies and Differential modulation waveforms. When the two original sound waves are ultrasound and the difference between them is chosen as the audio frequency, audible sounds can be generated through parametric interactions. [0003] Parametric audio reproduction systems produce sou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R19/00
CPCH04R19/00H04R2217/03
Inventor E·G·诺里斯
Owner TURTLE BEACH