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Active noise reduction earphone and earphone detection device

An earphone detection and active technology, which is applied in earpiece/earphone accessories, transducer circuits, sensors, etc., can solve the problem of bulky active noise reduction earphones

Active Publication Date: 2014-11-05
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this way, active noise-cancelling headphones must add a lot of extra circuits, and need to use other power sources for digital signal processing circuits, so active noise-cancelling headphones also become relatively bulky

Method used

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  • Active noise reduction earphone and earphone detection device
  • Active noise reduction earphone and earphone detection device
  • Active noise reduction earphone and earphone detection device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] In order to improve the current active noise-cancelling earphones, the present invention proposes a new idea, which uses the earphones with built-in microphones and utilizes computers or other electronic devices to perform noise-cancelling actions.

[0040] For example, when the computer detects that an earphone connector with a built-in microphone is plugged in, a corresponding program can be activated to generate an anti-phase noise signal for the noise received by the microphone on the earphone to achieve the noise reduction function. Moreover, the existing active noise-cancelling earphones are limited by the digital signal processing capability of the processor, and can only process noise in certain frequency bands. However, using the concept of the present invention, computers, notebook computers, mobile phones, and personal mobile assistants can (personal digital assistant, PDA) or other similar computing devices may perform noise reduction processing on more frequ...

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Abstract

The embodiment of the invention discloses an active noise reduction earphone which executes a noise reduction program through an electronic device. The active noise reduction earphone comprises a first joint, wherein the first joint comprises a first contact part which is used for receiving a sound source signal of a first sound channel, a second contact part which is used for receiving a sound source signal of a second sound channel, a third contact part which is in suspension connection, and a first grounding part which is used for grounding; when the first joint is inserted into an earphone joint socket of the electronic device, the electronic device detects voltage of the third contact part; and if the voltage is first voltage, the electronic device starts and executes the noise reduction program.

Description

technical field [0001] The invention relates to an earphone, in particular to an active noise reduction earphone and a detection device thereof. Background technique [0002] Active noise cancelled (ANC) earphones are a new product currently on the market, which can help users reduce the impact of environmental noise when using earphones, so that users can have better listening quality, but currently Commercially available products are still quite expensive, so they are still not widely available. At present, active noise canceling earphones mainly use noise detection microphones to receive external noise signals, and then send out an anti-phase noise signal through digital signal processing, thereby eliminating external noise. But in this way, the active noise canceling earphones must add a lot of extra circuits, and need to use other power sources for the digital signal processing circuit, so the active noise canceling earphones also become relatively bulky. Contents of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/10H04R3/00H04R29/00
Inventor 叶能文
Owner ACER INC