headphone device

An earphone, mixed volume technology, applied in the directions of earpiece/earphone accessories, earphones to reduce ambient noise, telephone structure, etc.

Active Publication Date: 2017-11-24
CIRRUS LOGIC INT SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a potential disadvantage that the sound produced by the speakers can be heard outside the earphones

Method used

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Examples

Experimental program
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Embodiment Construction

[0031] figure 1 One earphone 10 is shown. although figure 1 Only one earphone is shown in , but that earphone would typically be one of a pair of earphones connected eg by a band. figure 1 A supra-aural or supra-ear earphone is shown, sized so that it can be placed on the user's ear, for example with a diameter in the range 50-100mm. However, the description herein applies equally to around-ear headphones, in-ear headphones, and earbud-type headphones that have an outer shell that is larger than the user's outer ear and have sides that rest against the user's head . A cushion positioned around the outer ear, the in-ear earphone having a diameter in the range of 10-20 mm for placement in the user's outer ear, the earbud earphone having a diameter of less than 10 mm for placement into the user's ear at the entrance of the ear canal.

[0032] figure 1 An upper body portion 12 of the earphone 10 is shown having an aperture 14 for mounting a strap or the like for connecting th...

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PUM

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Abstract

Headphones include speakers. The rear volume of the loudspeaker is coupled to the mixing volume, the front volume of the loudspeaker is coupled to the mixing volume, and the mixing volume is coupled to the outside. The acoustic impedance caused by the rear volume, the front volume, the mixing volume and the passages between them can be adjusted to the desired sound leakage characteristics in advance. Acoustic damping material may be included in each leakage path to achieve desired characteristics, depending on the type of speaker to be used, the acoustic design of the earphone, the mechanical properties of the earphone body, and the desired frequency response characteristics of the earphone.

Description

technical field [0001] The present invention relates to an earphone device, for example of the type wearable on or in the user's ear. Thus, the present invention relates to any ear-worn device with a loudspeaker. Background technique [0002] GB-2445388A discloses an earphone device having a pad that can be placed on the user's ear, and wherein the front surface of the speaker is opened to the outside through a front leak path, and the rear surface of the speaker is opened to the outside through a rear leak path. to the outside. [0003] In such an arrangement, the existence of a leakage path means that the poor frequency response associated with closed earphones can be avoided. However, there is a potential downside that the sound produced by the speakers can be heard outside the earphones. GB-2445388A discloses a system in which the front leak path and the rear leak path have adjacent output ports so that there is a degree of acoustic cancellation between the sound tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/10H04M1/03
CPCH04R1/1083
Inventor R·纳拉扬
Owner CIRRUS LOGIC INT SEMICON
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