CN202059542U - Miniature acoustic equipment - Google Patents

Miniature acoustic equipment Download PDF

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Publication number
CN202059542U
CN202059542U CN2011201329836U CN201120132983U CN202059542U CN 202059542 U CN202059542 U CN 202059542U CN 2011201329836 U CN2011201329836 U CN 2011201329836U CN 201120132983 U CN201120132983 U CN 201120132983U CN 202059542 U CN202059542 U CN 202059542U
Authority
CN
China
Prior art keywords
button
vol
play
audio
function
Prior art date
Application number
CN2011201329836U
Other languages
Chinese (zh)
Inventor
宋丹
黄志宝
Original Assignee
宋丹
黄志宝
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宋丹, 黄志宝 filed Critical 宋丹
Priority to CN2011201329836U priority Critical patent/CN202059542U/en
Application granted granted Critical
Publication of CN202059542U publication Critical patent/CN202059542U/en

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Abstract

The utility model discloses miniature acoustic equipment, comprising a housing, a loudspeaker, an antenna, a power unit, a radio unit and a main circuit board. The housing is provided with a display screen, radio function buttons, a power switch and a power light; the radio function buttons are connected with the main circuit board and comprise a PLAY/PAUSE button, a PREV/VOL- button, and a NEXT/VOL+ button; the housing is provided with an external memory interface; the main circuit board is provided with a digital audio playing chip, which is in electric connection with the external memory interface; and the digital audio playing chip is provided with an data interface allowing the PLAY/PAUSE button to perform the functions of pausing or playing and provided with data interfaces allowing the PREV/VOL- button and the NEXT/VOL+ button to control the switching of previous ones and next ones during short pressing respectively and allowing the PREV/VOL- button and the NEXT/VOL+ button to perform the functions of decreasing volumes and increasing volumes during long pressing respectively. The miniature acoustic equipment is capable of reading and playing files in external memories directly, and has multiple functions and a small volume.

Description

A kind of mini audio
Technical field
The utility model relates to the sound technique field, is a kind of mini audio specifically.
Background technology
Existing mini audio, generally comprise shell, loud speaker, antenna, power unit and broadcast receiver part and main circuit board, on shell, be provided with display screen, function of radio receiver button, mains switch, reach power supply indicator and other interface, the function of radio receiver button is connected with the main circuit board circuit, the function of radio receiver button comprises " PLAY/PAUSE " button and " PREV/VOL-" button, " NEXT/VOL+ " button, this mini audio is general has function of radio receiver, can't play the audio file of external memory or miscellaneous equipment.
Summary of the invention
It is little that the purpose of this utility model provides a kind of volume, can directly read and play external storage file, the mini audio of diverse in function.
The purpose of this utility model is achieved through the following technical solutions.
A kind of mini audio; comprise shell; loud speaker; antenna; power unit and broadcast receiver part and main circuit board; on shell, be provided with display screen; the function of radio receiver button; mains switch and power supply indicator; the function of radio receiver button is connected with the main circuit board circuit; the function of radio receiver button comprises " PLAY/PAUSE " button and " PREV/VOL-" button; " NEXT/VOL+ " button; it is characterized in that: described shell is provided with the external memory socket; on main circuit board, be provided with digital audio and play chip; digital audio is play chip and is connected with external memory socket circuit; on digital audio broadcast chip, be provided with by " PLAY/PAUSE " data-interface, by " PREV/VOL-" button by key control time-out or playing function; " NEXT/VOL+ " button weak point is controlled a last head respectively on time; next and " PREV/VOL-" button; " NEXT/VOL+ " controls volume down respectively by the bond distance on time; volume increases the data-interface of function.
Described shell is provided with the USB socket, and the USB socket is play chip circuit with digital audio and is connected.
Described external memory socket is the SD card plug.
Described digital audio is play chip and is comprised digital signal processor, digital signal processor is connected with random asccess memory with read-only memory, digital signal processor is connected with ahb bus, dma controller is connected with ahb bus by the bus master port of self, ahb bus is connected with analog-to-digital converting module with numeral by the APB peripheral bus, the output of described numeral connects amplifying circuit, and described ahb bus is connected with external memory socket and USB socket by data interface circuit.
The utility model compared with prior art has the following advantages.
The utility model is play chip owing to be provided with digital audio on main circuit board, digital audio is play chip and is connected with external memory socket circuit, like this, just can play chip and peripheral circuit thereof by digital audio and carry out the secondary configuration to prior function on the mini audio and by strong, the digital signal processor of being play in the chip by digital audio coils through recognizing sD card or u by software again, then after digital audio is play the chip processing, audio file is wherein sounded by loud speaker, to audio file (as the operation, selected songs, F.F. etc.) directly by function of radio receiver button " PLAY/PAUSE " button and " PREV/VOL-" button, " NEXT/VOL+ " button is operated accordingly, this shows, the utlity model has directly to read and play external storage file, diverse in function, and the little advantage of volume.
Description of drawings
Fig. 1 is the structural representation of the utility model mini audio.
Embodiment
Below in conjunction with accompanying drawing the utility model mini audio is described in further detail.
Shown in Fig. 1-2; the utility model mini audio; comprise shell 1; loud speaker 2; antenna 3 and broadcast receiver part and main circuit board 4; on shell 1, be provided with the function of radio receiver button; display screen 5 and mains switch 6 and LED light 7 and LED light switch 8; the function of radio receiver button is connected with main circuit board 4 circuit; the function of radio receiver button comprises " PLAY/PAUSE " button 9 and " PREV/VOL-" button 10; " NEXT/VOL+ " button 11; being provided with external memory socket SD card plug 12 on shell is the socket groove; also be provided with USB socket 13; audio sockets 14; outlet 15; also be provided with battery standing groove 16 at the shell rear portion; on main circuit board 4, be provided with digital audio and play chip 17; digital audio is play chip 17 and external memory SD card plug 12; USB socket 13 circuit connect; play the data-interface that is provided with on the chip 17 by " PLAY/PAUSE " button 9 control time-outs or playing function in digital audio, by " PREV/VOL-" button 10; " NEXT/VOL+ " button 11 weak points are controlled a last head respectively on time; next and " PREV/VOL-" button 10; " NEXT/VOL+ " button 11 long volume down of on time controlling respectively; volume increases the data-interface of function.
Wherein digital audio broadcast chip 17 comprises digital signal processor, digital signal processor is connected with random asccess memory with read-only memory, digital signal processor is connected with ahb bus, dma controller is connected with ahb bus by the bus master port of self, ahb bus is connected with analog-to-digital converting module with numeral by the APB peripheral bus, the output of numeral connects amplifying circuit, and ahb bus is connected with external memory socket and USB socket by data interface circuit.
APB (Advanced Peripheral Bus), the meaning of peripheral bus.This bus protocol is one of AMBA bus structures of ARM company proposition, has almost become a kind of on-chip bus structure of standard.DMA (Direct Memory Access), i.e. direct memory access (DMA) is a kind of mechanism of quick transmission data.AHB is mainly used in the connection between the high-performance module (as CPU, DMA and DSP etc.).
Technology of the present utility model is to adopt USB flash disk or SD card to carry out the secondary configuration to mini little acoustic product function and by strong definition.Function on the usual sound equipment button all pre-sets, the corresponding function of button.The utility model is not when inserting USB flash disk or SD card; turn on the power switch is exactly the time-out or the playing function of a radio function button " PLAY/PAUSE " control radio reception; " PREV/VOL-" follows " NEXT/VOL+ " weak point is frequency modulation function on time, and length is the control volume functions on time.When inserting USB flash disk or SD card; the automatic conductively-closed of wireless function; system recognizes the content of external memory automatically; and begin to read information and play; at this moment; button " PLAY/PAUSE " control suspends or playing function, " PREV/VOL-" follow the last head of " NEXT/VOL+ " short control on time/next, length is controlled volume functions on time.At first will there be the USB flash disk of audio file or SD card when working specifically and insert respective socket on the shell respectively, digital signal processor recognizes USB flash disk or SD card by software through ahb bus, and read wherein audio file to analog-to-digital converting module, the good binary file of conversion at first by dma controller through the peripheral bus bridge reading of data in random asccess memory or read-only memory, and then data are delivered in the digital signal processor and decoded, in the audio file information that shows on the display screen 5 in USB flash disk or the SD card, people are by operation " PLAY/PAUSE " button and " PREV/VOL-" button, " NEXT/VOL+ " button is operated audio file wherein, decoded like this audio file is read in the numeral, and give amplifying circuit with simulated audio signal by output, amplifying circuit is exported to loud speaker after seeing the audio signal amplification of being imported, and sends music and appreciates for people.

Claims (4)

1. mini audio; comprise shell; loud speaker; antenna; power unit and broadcast receiver part and main circuit board; on shell, be provided with display screen; the function of radio receiver button; mains switch and power supply indicator; the function of radio receiver button is connected with the main circuit board circuit; the function of radio receiver button comprises " PLAY/PAUSE " button and " PREV/VOL-" button; " NEXT/VOL+ " button; it is characterized in that: described shell is provided with the external memory socket; on main circuit board, be provided with digital audio and play chip; digital audio is play chip and is connected with external memory socket circuit; on digital audio broadcast chip, be provided with by " PLAY/PAUSE " data-interface, by " PREV/VOL-" button by key control time-out or playing function; " NEXT/VOL+ " button weak point is controlled a last head respectively on time; next and " PREV/VOL-" button; " NEXT/VOL+ " controls volume down respectively by the bond distance on time; volume increases the data-interface of function.
2. mini audio according to claim 1 is characterized in that: described shell is provided with the USB socket, and the USB socket is play chip circuit with digital audio and is connected.
3. mini audio according to claim 1 is characterized in that: described external memory socket is the SD card plug.
4. mini audio according to claim 2, it is characterized in that: described digital audio is play chip and is comprised digital signal processor, digital signal processor is connected with random asccess memory with read-only memory, digital signal processor is connected with ahb bus, dma controller is connected with ahb bus by the bus master port of self, ahb bus is connected with analog-to-digital converting module with numeral by the APB peripheral bus, the output of described numeral connects amplifying circuit, and described ahb bus is connected with external memory socket and USB socket by data interface circuit.
CN2011201329836U 2011-04-29 2011-04-29 Miniature acoustic equipment CN202059542U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201329836U CN202059542U (en) 2011-04-29 2011-04-29 Miniature acoustic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201329836U CN202059542U (en) 2011-04-29 2011-04-29 Miniature acoustic equipment

Publications (1)

Publication Number Publication Date
CN202059542U true CN202059542U (en) 2011-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201329836U CN202059542U (en) 2011-04-29 2011-04-29 Miniature acoustic equipment

Country Status (1)

Country Link
CN (1) CN202059542U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032313A1 (en) * 2012-08-31 2014-03-06 Liu Juntao Miniature sound box having telescopic resonance chamber
CN103796113A (en) * 2013-12-24 2014-05-14 昆山市圣光新能源科技有限公司 Portable loudspeaker box with SD card data reading and radio function
CN104038240A (en) * 2014-06-10 2014-09-10 常州艾瑞特电子有限公司 Money-box type radio
WO2015027500A1 (en) * 2013-08-29 2015-03-05 Liu Juntao Mini-speaker
CN110654142A (en) * 2019-09-26 2020-01-07 安徽信息工程学院 Multifunctional music pen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032313A1 (en) * 2012-08-31 2014-03-06 Liu Juntao Miniature sound box having telescopic resonance chamber
WO2015027500A1 (en) * 2013-08-29 2015-03-05 Liu Juntao Mini-speaker
CN103796113A (en) * 2013-12-24 2014-05-14 昆山市圣光新能源科技有限公司 Portable loudspeaker box with SD card data reading and radio function
CN104038240A (en) * 2014-06-10 2014-09-10 常州艾瑞特电子有限公司 Money-box type radio
CN110654142A (en) * 2019-09-26 2020-01-07 安徽信息工程学院 Multifunctional music pen

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111130

Termination date: 20120429

C17 Cessation of patent right