Unlock instant, AI-driven research and patent intelligence for your innovation.

Embedded multi-channel professional MP3 player

An MP3 player, multi-channel technology, applied in the field of embedded multi-channel professional MP3 players, can solve the problems of limited MP3 player drive capability, unable to meet the needs of multi-channel playback of different background music, and achieve higher performance. the effect of demand

Inactive Publication Date: 2015-03-18
罗芳
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical defect that the traditional MP3 player has very limited drive capability, is only suitable for personal use, and cannot meet the needs of multi-channel playback of different background music in different areas in large public places, the present invention provides an embedded multi-channel professional MP3 player

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Embedded multi-channel professional MP3 player

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0021] Such as figure 1 A specific embodiment of the present invention is given: select Samsung's S3C44B0X as the core processor, which is mainly responsible for data conversion, selection of output channels, and control of LCD. At the same time, STA013 from STMicroelectronics is selected as the decoding chip, and AK4393 is used to realize the output of analog audio signals. In addition, SL811HS and ISP1520 are used to provide two main USB interfaces to realize the connection of mobile hard disk or U disk.

[0022] S3C44B0X is a multifunctional SOC (Signal Operation Control) developed based on ARM7. S3C44B0X not only has peripherals such as bus, SDRAM controller and 3 serial ports that common embedded chips have, but also has TFT LCD controller, USB Slave, USB Host, I2C bus controller, SPI controller, IIS audio interface , SD&MMC memory card interface and other rich expansion functions [3]. Since S3C44B0X is quite mature for the main USB interface technology built by SL811, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an embedded multi-channel professional MP3 player. The player comprises a central processing unit, a power management chip, a memory, an MP3 decoder and a digital analog converter which are connected with the central processing unit, as well as a multi-channel switch connected with the central processing unit. Compared with a traditional MP3 player, the embedded multi-channel professional MP3 player has multiple advantages, and can be used for meeting requirements of large public places for higher performance of background music. The player can realize synchronous playing of multiple audio output channels, and can realize mass storage of songs by virtue of plug-in memory through an USB interface.

Description

technical field [0001] The invention belongs to the field of consumer electronics and relates to an embedded multi-channel professional MP3 player. Background technique [0002] With the rapid development of microelectronics technology, embedded products have been popularized rapidly with their natural human-computer interaction interface and rich multimedia processing capabilities, and have achieved great success. [0003] The multi-channel professional MP3 player is specially designed to meet the needs of the public voice broadcasting market, and its main features include: [0004] (1) Audio decoding and playback functions; [0005] (2) Data transmission with a large-capacity external storage device through the USB interface; [0006] (3) Unified management function of the operation interface; [0007] (4) Multi-channel playback function. [0008] Currently, in the field of multimedia audio, MP3 players occupy an absolute dominant position. However, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/16
Inventor 罗芳
Owner 罗芳