CN2882174Y - Multifunction multi-media loudspeaker - Google Patents
Multifunction multi-media loudspeaker Download PDFInfo
- Publication number
- CN2882174Y CN2882174Y CN 200520119867 CN200520119867U CN2882174Y CN 2882174 Y CN2882174 Y CN 2882174Y CN 200520119867 CN200520119867 CN 200520119867 CN 200520119867 U CN200520119867 U CN 200520119867U CN 2882174 Y CN2882174 Y CN 2882174Y
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- card reader
- usb
- master controller
- mcu master
- controller
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Abstract
The utility model discloses a multi-functional multimedia voice box, which comprises a power amplification circuit, a loudspeaker, a built-in MCU main controller, a MP3 decoding circuit, a USB controller, a USB port, a card reader and a card-reader interface. The utility model can directly read files in format of MP3 from any USB device or SD/MMC card, and convert the files into analogue audio signals, output them to the power amplification circuit or broadcast them directly by the loudspeaker. As the memory in the utility model is rewritable, the technical materials in the memory can be updated as necessary without purchasing CD frequently, which can greatly save consumption cost. With the utility model, one can download the latest MP3 materials from time to time, select any music he likes. As the memory media of MP3 mobiles from producers are SD/MMC cards, the application of the utility model is widened further, and the compatibility of the utility model is enhanced, which can meet better demands of users.
Description
[technical field]:
The utility model relates to a kind of audio amplifier.
[background technology]:
At present, the abstract the recreational consumption of family is in quick growth, the mode of digitized audio-visual propagation is more and more universal, this information propagation pattern highly developed today in the Internet, a lot of latest music have adopted online published method and have sold with the mode that provides the MP3 format file to download, people can or obtain the MP3 data on the net simultaneously on market, MP3 has become audio data and propagated the most widely and storage mode.USB device on the market such as portable hard drive, flash disk, USB card, USB card reader etc. are more and more, because USB device is easy to carry, capacity is big, people adopt these equipment to store individual data more and more, comprise the audio data of some MP3 format.But behind the USB device storage MP3 is impossible play-over music, and these audio datas are used if desired, plays on home audio after then will being carved into the CD disc, perhaps needs just can play with computer, extremely inconvenient in the use.
[summary of the invention]:
The purpose of this utility model is exactly in order to overcome the above problems, and a kind of convert file form that need not is provided, and need not by computer the multimedia loudspeaker box that can directly the MP3 music on the USB device be come out.
The utility model realizes that the technical scheme that above-mentioned purpose adopted is: a kind of multi-functional multimedia loudspeaker box comprises power amplifier, loud speaker, the two electrical connection; Also comprise MCU master controller, MP3 decoding circuit, USB controller, USB interface, card reader and card reader interface, described MP3 decoding circuit, USB controller, card reader are connected with described MCU master controller respectively, and described MP3 decoding circuit output end is connected with the signal input part of described power amplifier input or loud speaker; Described USB interface is connected with described USB controller, and described card reader interface is connected with described card reader; Described USB controller is used to read the MP3 format file of USB device or usb host, described card reader is used to read the MP3 format file of SD/MMC card, described MP3 decoding circuit is a simulated audio signal with the MP3 format file conversion, outputs to power amplifier or is directly come out by loudspeaker plays.
Above-mentioned multimedia loudspeaker box, described MP3 decoding circuit MP3 decoder, digital to analog converter, described MP3 decoder input is connected with described MCU master controller, the MP3 decoder output is connected with described digital to analog converter input, and described digital to analog converter output is connected with described power amplifier or loud speaker.Or described MP3 decoding circuit MP3 decoder, EQ equalizer, digital to analog converter, described MP3 decoder input is connected with described MCU master controller, the MP3 decoder output is connected with described EQ equalizer input, described EQ equalizer output is connected with described digital to analog converter input, and described digital to analog converter output is connected with described power amplifier or loud speaker.
Above-mentioned multimedia loudspeaker box, described card reader are the SD/MMC card reader.
Above-mentioned multimedia loudspeaker box also comprises operating state selection circuit, is electrically connected with described MCU master controller; Be used for selecting to play, suspend, stop, operating states such as F.F., rewind down.Described operating state selects circuit to comprise the key switch group, is connected with described MCU master controller.
Above-mentioned multimedia loudspeaker box also comprises infrared transceiver, is electrically connected with described MCU master controller, is used to receive the function select signal of Infrared remote controller.Or also comprise and radio frequency receiver be electrically connected with described MCU master controller, be used for the function select signal of received RF remote controller.
Above-mentioned multimedia loudspeaker box also comprises earphone interface, is parallel to the signal input part of described loud speaker.
Adopt the beneficial effect of above scheme to be:
Use multimedia loudspeaker box of the present utility model, can no longer rely on computer to carve behind the CD at home the audio-visual household electrical appliances plays or plays by computer again, be the external equipment of storage media and the audio data of MP3 format as long as have USB device and MMC, SD card, just can play-over music, directly listen to by audio amplifier or lug machine, easy to use, quick.And because USB or the erasable property that memory device had such as MMC, SD, often data for updating does not need frequently to buy CD, can save consumer cost greatly; Can download up-to-date MP3 data at any time on the net, select the music of oneself liking, satisfy user's individual demand.
Because the storage medium of the MP3 mobile phone of mobile phone business men release recently is the SD/MMC card, makes the utility model range of application more extensive, and is better compatible, more can satisfy user's demand.
Audio amplifier of the present utility model can be with pressing key control or infrared, RF remote-controlled, easy to use, simple to operate.
[description of drawings]:
Fig. 1 is the schematic block circuit diagram of the utility model embodiment one;
Fig. 2 is the schematic block circuit diagram of the utility model embodiment two;
Fig. 3 is a circuit logic theory diagram of the present utility model.
[embodiment]:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: please refer to Fig. 1, shown in Figure 3, the utility model comprises power amplifier, loud speaker, MCU master controller, MP3 decoding circuit, USB controller, USB interface, card reader and card reader interface, radio frequency (RF) receiving circuit.Radio frequency (RF) receiving circuit, MP3 decoding circuit, USB controller, card reader are connected with the MCU master controller respectively, and the MP3 decoding circuit output end is connected with the power amplifier input; USB interface is connected with the USB controller, and card reader interface is connected with card reader.The MP3 decoding circuit comprises MP3 decoder, EQ equalizer, digital to analog converter, MP3 decoder input is connected with the MCU master controller, the MP3 decoder output is connected with EQ equalizer input, EQ equalizer output is connected with the digital to analog converter input, and the digital to analog converter output is connected with the power amplifier input.The audio output signal power amplifier of MP3 decoding circuit outputs to loudspeaker plays after carrying out the signal amplification again.
The USB controller reads the flash memory that is plugged on the Universal USB interface, or card reader is read the MP3 format file that stores in MMC, the SD card, again after the MP3 decoder for decoding, carry out the balanced adjusting of EQ, be converted to simulated audio signal by digital to analog converter and export to power amplifier or loud speaker, radio frequency (RF) receiving circuit is used to receive the signal input of remote controller, selects operating state such as broadcast, F.F., rewind down etc., reaches the effect of remote control.
Embodiment two: please refer to Fig. 2, shown in Figure 3, the MP3 decoding circuit output end directly is connected with loud speaker, play-overs the analog signal of its output.Present embodiment adopts Infrared remote controller that operating state is controlled, and infrared transceiver is electrically connected with the MCU master controller, carries out operations such as controls playing, F.F., rewind down with the infrared receiving/transmission mode.
Embodiment two: this routine operating state selects circuit to adopt the key switch group, is connected with the MCU master controller, selects operating state such as broadcast, F.F., rewind down etc.
Claims (9)
1, a kind of multi-functional multimedia loudspeaker box comprises power amplifier, loud speaker, the two electrical connection; It is characterized in that: also comprise MCU master controller, MP3 decoding circuit, USB controller, USB interface, card reader and card reader interface, described MP3 decoding circuit, USB controller, card reader are connected with described MCU master controller respectively, and described MP3 decoding circuit output end is connected with the signal input part of described power amplifier input or loud speaker; Described USB interface is connected with described USB controller, and described card reader interface is connected with described card reader; Described USB controller is used to read the MP3 format file of USB device or usb host, described card reader is used to read the MP3 format file of SD/MMC card, it is simulated audio signal that described MP3 decoding circuit is used for the MP3 format file conversion, outputs to power amplifier or is directly come out by loudspeaker plays.
2, multimedia loudspeaker box as claimed in claim 1, it is characterized in that: described MP3 decoding circuit MP3 decoder, digital to analog converter, described MP3 decoder input is connected with described MCU master controller, the MP3 decoder output is connected with described digital to analog converter input, and described digital to analog converter output is connected with described power amplifier or loud speaker.
3, multimedia loudspeaker box as claimed in claim 1, it is characterized in that: described MP3 decoding circuit MP3 decoder, EQ equalizer, digital to analog converter, described MP3 decoder input is connected with described MCU master controller, the MP3 decoder output is connected with described EQ equalizer input, described EQ equalizer output is connected with described digital to analog converter input, and described digital to analog converter output is connected with described power amplifier or loud speaker.
4, as claim 2 or 3 described multimedia loudspeaker boxes, it is characterized in that: also comprise operating state selection circuit, be electrically connected with described MCU master controller; Be used for selecting to play, suspend, stop, operating states such as F.F., rewind down.
5, multimedia loudspeaker box as claimed in claim 4 is characterized in that: described operating state selects circuit to comprise the key switch group, is connected with described MCU master controller.
6, as claim 2 or 3 described multimedia loudspeaker boxes, it is characterized in that: also comprise infrared transceiver, be electrically connected, be used to receive the function select signal of Infrared remote controller with described MCU master controller.
7, as claim 2 or 3 described multimedia loudspeaker boxes, it is characterized in that: also comprise radio frequency receiver, be electrically connected, be used for the function select signal of received RF remote controller with described MCU master controller.
8, as claim 2 or 3 described multimedia loudspeaker boxes, it is characterized in that: also comprise earphone interface, be parallel to the signal input part of described loud speaker.
9, as claim 2 or 3 described multimedia loudspeaker boxes, it is characterized in that: described card reader is the SD/MMC card reader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119867 CN2882174Y (en) | 2005-12-07 | 2005-12-07 | Multifunction multi-media loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119867 CN2882174Y (en) | 2005-12-07 | 2005-12-07 | Multifunction multi-media loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2882174Y true CN2882174Y (en) | 2007-03-21 |
Family
ID=37882017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119867 Expired - Fee Related CN2882174Y (en) | 2005-12-07 | 2005-12-07 | Multifunction multi-media loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2882174Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577913A (en) * | 2012-07-31 | 2014-02-12 | 李文庆 | Management system of intelligent conditioning kitchen ware |
-
2005
- 2005-12-07 CN CN 200520119867 patent/CN2882174Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577913A (en) * | 2012-07-31 | 2014-02-12 | 李文庆 | Management system of intelligent conditioning kitchen ware |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN CITY MEINENG ELECTRONICS CO., LTD. ADDRE Free format text: FORMER OWNER: SHAO XIAOBING ADDRESS Effective date: 20081121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081121 Address after: Guangdong province Dongguan City Qiaotou town Shao Gang head Fudu Garden Center Road No. 3 building B building second floor, zip code: 523520 Patentee after: Dongguan Meineng Electronics Co., Ltd. Address before: Guangdong province Dongguan city Changping town center Guangyu, zip code: 523560 Patentee before: Shao Xiaobing |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN CITY MEINENG ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHAO XIAOBING Effective date: 20081121 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20111207 |