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Earpiece capable of generating ultrasonic waves and the multimedia equipment it constitutes

An ultrasonic and earpiece technology, applied in the field of mobile devices, can solve problems such as cheek fever and ear pain

Active Publication Date: 2018-06-05
TOUCHAIR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The user puts the earpiece close to the ear to make it more airtight and achieve a better call effect, but it causes discomfort in the user's ears, cheeks, etc.

Method used

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  • Earpiece capable of generating ultrasonic waves and the multimedia equipment it constitutes
  • Earpiece capable of generating ultrasonic waves and the multimedia equipment it constitutes
  • Earpiece capable of generating ultrasonic waves and the multimedia equipment it constitutes

Examples

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] The design of commonly used earpieces is attached figure 1 As shown, it is mainly composed of a sound hole, a sound cavity, a leakage hole and a speaker. Among the figures, 10 is a sound hole, 11 is a sound cavity, 12 is a speaker, 13 is a leakage hole, 14 is a human ear, and 15 represents the sound emitted by the speaker. Sound pressure, its working principle is: the electric earpiece uses the current-carrying conductor (the voice coil fed by the audio current) to interact between the magnetic field of the permanent magnet, so that the voice coil vibrates and drives the diaphragm to vibrate. The energy conversion method is Electrical ener...

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PUM

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Abstract

The invention discloses an earpiece capable of generating ultrasonic waves, comprising a loudspeaker, a sound chamber, a sound outlet, a leakage hole, a microphone arranged in the sound chamber, a comparator, and a filter, and the size of the sound outlet is enlarged to enable the speaker to generate The sound wave or ultrasonic wave of the target frequency can emerge from the sound hole, and the input signal of the target frequency is provided to the speaker during operation. The microphone monitors the sound frequency in the sound cavity, and the comparator compares the sound frequency with the target frequency response curve and compares the input signal. Curve fitting is performed through the filter so that the frequency of the target frequency response curve at the sound outlet can still pass through the sound outlet when the frequency is above 3KHz, and the frequency response curve does not change when the frequency of the sound wave is less than 3KHz. This solution can make the earpiece emit ultrasonic waves of the required frequency, and the ultrasonic earpiece can be widely used in multimedia equipment based on ultrasonic gesture recognition, and has no effect on the sound quality of the earpiece; without increasing the cost of the multimedia equipment, and without modifying the multimedia equipment. hardware circuit.

Description

technical field [0001] The invention relates to an earpiece for multimedia equipment, especially in the field of mobile equipment. Background technique [0002] With the development of science and technology and the increasing application of smart multimedia devices, gesture recognition technology has begun to enter people's lives. Microphones and speakers on multimedia devices can receive and send ultrasonic waves, and gesture recognition technology based on ultrasonic waves can be widely used. One of the biggest advantages of making multimedia devices achieve better interactive functions is that there is no need to increase the cost of multimedia devices, and there is no need to modify the hardware circuits of multimedia devices. [0003] The sound frequency range that the human ear can perceive is between 16KHZ and 20KHZ, while gesture recognition based on ultrasonic waves needs to emit sound waves of 20Khz~500MHz, which cannot be realized in existing earpieces. The hand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/10H04R1/08
Inventor 窦新玉申立琴
Owner TOUCHAIR TECH
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