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Multifunctional composite mould portable digital audio player

A digital audio, portable technology, applied in the direction of electrical digital data processing, digital computer components, instruments, etc.

Inactive Publication Date: 2005-01-19
杨心怀
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing portable digital audio players on the market usually have digital audio decoding and playback functions such as MP3, WMA, AAC and digital recording functions, and some also have FM functions or computer mobile memory functions; but there is no one that has the above functions. At the same time, it has the function of external sound card with computer USB interface, language repeat function, earphone and speaker subwoofer and super subwoofer processing function, 2D virtual surround sound and other sound effects

Method used

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  • Multifunctional composite mould portable digital audio player
  • Multifunctional composite mould portable digital audio player
  • Multifunctional composite mould portable digital audio player

Examples

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Embodiment Construction

[0009] Its system block diagram is shown in Figure 1. It has digital audio decoding and playback functions such as MP3, WMA, and AAC, digital recording functions, and language repeating functions. It also has computer mobile memory functions, computer USB interface external sound card functions, FM radio functions and Digital audio player for electronic watch electronic perpetual calendar. The portable digital audio player can upgrade its firmware through the USB interface, so that it can adapt to future digital audio compression standards. The portable digital audio player can support the interface of earphones and speakers, the function of external sound card, the function of language repeating, and the processing of subwoofer and super subwoofer between earphones and speakers. The landline can be powered by USB bus or external 5V DC input. The landline has audio input and audio output functions. It has a high-efficiency Class D audio power amplifier and can receive infrared...

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Abstract

This invention relates to a kind of multifunctional combined digital audio player, which belongs to consumptive electronic and computer peripheral equipment. This invention has multiple digital audio encoding function and digital recording function, and with PC external sound card, mobile storage, recrudescence, digital watch, permanent calendar function. It supports the supper bass and surround sound effect. The firmware can be upgraded. The main solution adopts the ARM+DSP double core structure audio processor. The ARM core processes various decoding of compressed audio file, and realizes mobile storage and external sound card function, supports multi-language display. The DSP core processes various sound effects. The power supply is provided by class D power amplifier and USB.

Description

technical field [0001] The invention relates to a multifunctional combined portable digital audio player, which belongs to a consumer electronic product and also belongs to a computer peripheral product. Background technique [0002] The existing portable digital audio players on the market usually have digital audio decoding and playback functions such as MP3, WMA, AAC and digital recording functions, and some also have FM functions or computer mobile memory functions; but there is no one that has the above functions. At the same time, it has the function of external sound card with computer USB interface, language repeat function, headphone and speaker subwoofer and super subwoofer processing function, 2D virtual surround sound and other sound effects. Contents of the invention [0003] The present invention relates to a multifunctional combined portable digital audio player, which includes: a landline with two loudspeakers, a low-power portable digital player and an inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/16G06F15/00G06F17/00G11B31/00
Inventor 杨心怀
Owner 杨心怀
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