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Microphone array, microphone array obtaining method and electronic device

A technology of microphone array and implementation method, which is applied in the direction of electrical components, transducer circuits, sensor components, etc., can solve the problem of inability to adjust the size of the equipment, and achieve the effect of overcoming the limitation of distance

Active Publication Date: 2014-12-24
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the size of electronic devices is small, such as small-sized mobile phones or tablet computers, when these devices use microphone arrays, the corresponding device size will be limited by the layout requirements of the microphone array, resulting in the inability to adjust the device size at will

Method used

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  • Microphone array, microphone array obtaining method and electronic device
  • Microphone array, microphone array obtaining method and electronic device
  • Microphone array, microphone array obtaining method and electronic device

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The microphone array 10 provided by the embodiment of the present invention, such as figure 1 As shown, at least one sensor 11 for receiving sound from a sound source 20 is included.

[0021] There is a dielectric layer 12 between the sound source 20 and the sensor 11 .

[0022] Wherein, the density or thickness of the dielectric layer 11 is controllable.

[0023] The microphone array 10 is connected to a controller 13, which controls the density or t...

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Abstract

The embodiment of the invention provides a microphone array, a microphone array obtaining method and an electronic device and relates to the digital signal processing field. By the adoption of the microphone array, limitation on the distance between sensors in the microphone array can be eliminated, and free adjustment of the size of the microphone array can be achieved. The microphone array comprises at least one sensor used for receiving the sound from a sound source, wherein a dielectric layer is arranged between the sound source and each sensor, and the density or thickness of each dielectric layer is controllable. The microphone array is connected with a controller which controls the density or thickness of each dielectric layer according to an input condition.

Description

technical field [0001] The invention relates to the field of digital signal processing, in particular to a microphone array, a realization method and electronic equipment. Background technique [0002] With the continuous development of digital signal processing technology, microphone array technology has been widely used in various systems including computers, mobile terminals, audio / video communication conference systems, speech recognition systems, etc. Compared with a single microphone, a microphone array can spatially sample a specific signal in a specific direction in the airspace through beamforming, and use the sampled spatial information to enhance a signal in a specific direction and signal in other directions. Suppression, so that it can capture sound more sensitively, effectively suppress environmental noise, and eliminate the influence of echo. [0003] The key to using a microphone array for spatial signal sampling lies in beamforming, which is also called spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
Inventor 李佳
Owner LENOVO (BEIJING) LTD