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Portable audio playback device

A portable and equipment technology, applied in the direction of frequency/directional characteristic device, transducer shell/cabinet/stand, etc., can solve the problems of unsatisfactory directivity, insufficient low frequency, inconvenient to carry, etc., to avoid unsatisfactory sound field and improve loudness , Improve the overall sound effect

Inactive Publication Date: 2009-12-23
BEIJING GOERTEK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a portable audio playback device to solve the problems of the existing audio playback devices that are not easy to carry, insufficient low frequency, low volume, and unsatisfactory directivity

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0024] figure 1 is a schematic diagram of the appearance of the portable audio playback device according to the first embodiment of the present invention. As shown in the figure, the upper and lower surfaces of the casing of the portable audio reproducing device 100 are the largest surfaces, and the casing has a predetermined height to form an internal space, which is predetermined according to the size of the microspeaker 101 mounted on the side surface. . Preferably, the smallest dimension of the microspeaker is below 50mm. More preferably, the smallest dimension of the portable audio playback device is less than 60 mm in length, width and height. More preferably, the housing size of the portable audio playback device is 138mm*82mm*23mm. The hollow part inside the casing is the body 120 for placing components such as circuit boards and batteries, and the circuit board is used to process external input audio signals and convert them into output signals for driving the spea...

Embodiment 2

[0032] see Figure 7 , is a sectional view of the second embodiment of the present invention. In this embodiment, the microspeaker array of the portable sound reproduction device 100 is composed of a plurality of microspeaker units 101 on six sides of the largest surface of the device. The structure and function of other portions of the portable audio reproducing device in this embodiment are the same as those in the first embodiment.

Embodiment 3

[0034] see Figure 8 , is the front view of the third embodiment of the present invention. In this embodiment, at least one radiation surface of the speaker array of the portable audio playback device 100 is composed of two rows of micro speaker units 101 . Of course, it can also be composed of more than two rows of micro-speaker units. This embodiment can further widen the width of the sound field and improve the sound effect. For the structure of other parts of the portable audio playback device in this embodiment, refer to the first embodiment.

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Abstract

The invention discloses a portable audio playback device and a related mobile multimedia playing device. A plurality of micro-speaker monomers are arranged on a housing of the portable audio playback device, a plurality of micro-speaker monomers form a speaker array, the housing comprises at least one largest surface and a plurality of side surfaces, and a radiation surface of the speaker array is one or a plurality of side surfaces. Compared with the prior art, the provided portable audio playback device utilizes the micro-speaker array and can simultaneously emit sound signals from one or a plurality of radiation surfaces, avoid the problem that a sound field is not ideal due to high-frequency directivity, expand the sound field, broaden a sound image, enhance the stereo effect, further improve the overall sound effect of the device and lead the sound effect to be in line with music playback.

Description

technical field [0001] The invention relates to a portable audio playback device, which can be used in conjunction with devices with audio functions such as portable multimedia players and mobile phones through wired or wireless methods, and can also be integrated with the above-mentioned devices. Background technique [0002] With the development and popularization of portable audio signal sources such as portable multimedia players and mobile phones, there is a need for an electro-acoustic device that can be carried around for sound playback anytime and anywhere. [0003] At present, there are some patents on portable audio playback equipment, such as US2008175427A1, which discloses a cylindrical portable speaker system capable of playing external audio files, which has two speakers located at both ends of the cylindrical casing. Limited by the size of the speaker, the device disclosed in this patent is relatively bulky, making it difficult to carry it around. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/02H04R1/20
Inventor 钟旋赵燕鹏江超张向东姜朋欣
Owner BEIJING GOERTEK TECH CO LTD
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