CN2814919Y - Vehicle receiving and broadcasting device capable of digital tuning reception and MP3 playing back - Google Patents
Vehicle receiving and broadcasting device capable of digital tuning reception and MP3 playing back Download PDFInfo
- Publication number
- CN2814919Y CN2814919Y CN 200520027035 CN200520027035U CN2814919Y CN 2814919 Y CN2814919 Y CN 2814919Y CN 200520027035 CN200520027035 CN 200520027035 CN 200520027035 U CN200520027035 U CN 200520027035U CN 2814919 Y CN2814919 Y CN 2814919Y
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- microprocessor
- playback
- radio
- digital
- radio reception
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Abstract
The utility model provides a vehicle receiving /playing device with the functions of digital tuning reception for broadcast and MP3 playback, and a broadcast receiving section is formed by connecting an AM/FM broadcast receiving head (1), a microprocessor (2), a display driver (3), a liquid crystal screen (4), a keyboard (5), an electronic volume controller (6) and a power amplifier (7). The utility model is characterized in that a broadcast playing section comprises a microcomputer processor (8), an audio amplifier (9), an RAM memory (10) and a flash memory (11), wherein the microcomputer processor (8) is connected with the audio amplifier (9), the RAM memory (10) and the flash memory (11); a built-in USB master-pattern interface is arranged inside the microcomputer processor (8), is connected with a mobile hard-disk (12) in a plugging mode, and directly receives MP3 information from the mobile hard-disk (12); the microcomputer processor (8) is connected with the microprocessor (2); the audio amplifier (9) is connected with the electronic volume controller (6); a broadcast receiving or playback command is inputted from the keyboard (5). Thus, the vehicle receiving /playing device with the functions of digital tuning reception for broadcast and MP3 playback is formed. The utility model has the characteristics of small size, large capacity, easy use and good vibration resistance.
Description
Technical field
The utility model belongs to automotive acoustics.Specifically, particularly have digital tuning radio reception, its sound reproduction is partly with USB interface and can pegs graft with the outer mobile memory of machine, plays the cassette car radio of MP3 music program.
Background technology
The storage medium of existing cassette car radio is mainly tape, CD CD etc., and all there is inborn defective in modes of these storage music, and (one) tape volume is big, capacity is little, make moist easily and magnetize, and the life-span is short, it is poor to belong to the mechanical structure shock resistance; (2) having certain advance than tape after the CD CD comes out, though capacity is bigger, is read-only medium, and upgrading music needs constantly to buy CD, the expense height, and music sources is limited, and is same because be mechanical structure, still has the defective of poor seismic behavior; (3) not only there is above-mentioned deficiency in traditional cassette car radio, because the restriction of project organization can't utilize the online music resource to be the cassette car radio service easily, this is that the big defective in current information epoch need be eager to improve and designs.
Summary of the invention
The purpose of this utility model is to develop a kind of radio and tape player that is specially adapted to use in the automobile, is the cassette car radio with digital tuning radio reception and MP3 playback.USB holotype interface by the mobile memory outside the machine and this machine is pegged graft, its playback part can obtain the MP3 music information, as its program source, can thoroughly solve the many disadvantages of orthodox car radio and tape player, it is unified to have interface standard, and storage volume is big, expense is low, simple to operate, shock resistance is strong, volume is little advantage.
Another purpose of the present utility model is to make full use of the online music resource, is a kind of storage medium of active, can realize playback by the relative program of this machine at any time as required by the downloaded music information with mobile memory.
The utility model is realized by following step, see accompanying drawing 1 or 2, it connects to form the radio reception part by AM/FM radio reception head (1) and microprocessor (2), display driver (3), LCD (4), keyboard (5), electronic sound volume controller (6), power amplifier (7); It is characterized in that: playback partly comprises microprocessor (8) and audio frequency amplifier (9), random asccess memory (10), flash memories (11) connects, wherein microprocessor (8) inside has mobile memory (12) grafting that embeds outside USB holotype interface and this machine and directly obtains MP3 information from mobile memory (12), described microprocessor (8) is connected with microprocessor (2), audio frequency amplifier (9) is connected with electronic sound volume controller (6), keyboard (5) input radio reception or reproduction command realize receiving, playback constitutes the cassette car radio of digital tuning radio reception and MP3 playback.
Microprocessor (8) inside also comprises digital decoder, digital-to-analogue conversion and universal asynchronous receiving-transmitting end except that embedding USB holotype interface, wherein digital decoder is finished MP3 information decoding, digital-to-analogue conversion.
Microprocessor (2) is this radio and tape player main control chip, and its inner embedding phase-locked loop frequency synthesizer, program storage and described radio reception partly realize AM/FM radio reception; Utilize the input/output interface of microprocessor (2) to be connected simultaneously, realize that the playback instruction transmits with the inner universal asynchronous receiving-transmitting end that embeds of microprocessor (8).
Keyboard (5) input play command, microprocessor (2) is sent to information the program of microprocessor (8) and random asccess memory (10), flash memories (11) by communication bus, read the MP3 data of moving memory (12) by USB holotype interface, sending into digital signal decoder decodes, digital-to-analogue conversion realizes music through audio frequency amplifier (9), electronic sound volume controller (6), power amplifier (7).
Good effect of the present utility model and advantage: the microprocessor internal that (1) the utility model playback is partly adopted embeds USB holotype interface and the outer mobile memory grafting of this machine, directly obtain MP3 information from mobile memory, for playback partly provides music program, have that volume is little, capacity is big, easy to use, advantage; (2) mobile memory has the computer external bus interface of standard, and download music files can make full use of Internet resources and have the low characteristics of cost at any time; (3) microprocessor internal of the utility model employing embeds USB holotype interface and the outer mobile memory grafting of this machine, has the hot plug of support, the transmission rate height, can be easily and the computer equipment swap data, having good shock resistance, is that traditional radio and tape player employing tape, CD CD are incomparable as storage medium.
Description of drawings
Fig. 1 is the utility model general structure schematic diagram: wherein, 1 is that AM/FM radio reception head, 2 is that microprocessor 3 is that display driver, 4 is that LCDs, 5 is that keyboard, 6 is that electronic sound volume controller, 7 is that power amplifier, 8 is that microprocessor, 9 is that audio frequency amplifier, 10 is that random asccess memory, 11 is that flash memories, 12 is a mobile memory.
Fig. 2 is the utility model host circuit structural representation: wherein, 1 is that AM/FM radio reception head, 2 is that microprocessor, 3 is that display driver, 4 is that LCDs, 5 is that keyboard, 6 is that electronic sound volume controller, 7 is that power amplifier, 8 is that microprocessor, 9 is that audio frequency amplifier, 10 is that random asccess memory, 11 is that flash memories, 12 is a mobile memory.
Embodiment
1 or 2 pair of the utility model is described further in conjunction with the accompanying drawings, it inner embed phase-locked loop frequency synthesizer, program storage and AM/FM radio reception 1, electronic sound volume controller 6, power amplifier 7 and is connected and finishes AM/FM radio reception microprocessor 2 as this radio and tape player main control chip, utilizes the universal asynchronous receiving-transmitting end of input/output interface and microprocessor 8 to finish to instruct simultaneously and transmits; Mobile memory 12 mainly constitutes by single-chip microcomputer with based on the storage medium of chip, and its medium is the music information from downloaded; The described microprocessor 8 inner USB holotype interfaces that embed, itself and this machine mobile memory 12 is outward pegged graft, directly obtain MP3 information by USB holotype interface, realize MP3 information decoding, digital-to-analogue conversion and the communication of this machine through the microprocessor 8 inner digital signal decoders that embed from Move Mode memory 12.After the user is by keyboard 5 input play command, information is sent to microprocessor 8 and random asccess memory 10, flash memories 11 relative programs by communication bus, read the data of the MP3 of mobile memory 12 by USB holotype interface, after microprocessor 8 obtains its legitimacy of MP3 data verification, send into that digital signal decoder is decoded, digital translation realizes music through audio frequency amplifier 9, electronic sound volume controller 6, power amplifier 7 again, comprise that also microprocessor 2 is connected with electronic sound volume controller 6, finishes volume, tone control.The user controls keyboard 5 inputs of this machine or the operating state of this machine shows with LCDs 4.Described microprocessor 2 should adopt SY2309A model, microprocessor 8 to adopt TCC720A model, random asccess memory 10 to adopt HY572820HC7-H model, flash memories 11 should adopt the SST39VF400A model to guarantee the work of this radio and tape player normal reliable.
Claims (4)
1. the cassette car radio that has digital tuning radio reception and MP3 playback, it connects to form the radio reception part by AM/FM radio reception head (1) and little processing (2), display driver (3), LCDs (4), keyboard (5), electronic sound volume controller (6), power amplifier (7); It is characterized in that: playback partly comprises computer processor (8) and audio frequency amplifier (9), random asccess memory (10) flash memories (11) connects, wherein microprocessor (8) inside has mobile memory (12) grafting that embeds outside USB holotype interface and this radio and tape player, and directly obtain MP3 information from mobile memory (12), described microprocessor (8) is connected with microprocessor (2), audio frequency amplifier (9) is connected with electronic sound volume controller (6), keyboard (5) input radio reception or reproduction command, realize receiving, playback constitutes the cassette car radio of digital tuning radio reception and MP3 playback.
2. according to the described radio and tape player of claim 1, it is characterized in that: microprocessor (8) is inner also to comprise digital signal decoder, digital-to-analogue conversion and universal asynchronous receiving-transmitting end except that embedding USB holotype interface, wherein digital signal decoder is finished MP3 information decoding, digital-to-analogue conversion.
3. according to claim 1 or 2 described radio and tape players, it is characterized in that: microprocessor (2) is this radio and tape player main control chip, and its inner embedding phase-locked loop frequency synthesizer, program storage and described radio reception partly realize the radio reception of AM/FM; Utilize the input/output interface of microprocessor (2) to be connected simultaneously, realize that the playback instruction transmits with the inner universal asynchronous receiving-transmitting end that embeds of computer processor (8).
4. according to the described radio and tape player of claim 1, it is characterized in that: keyboard (5) input play command, microprocessor (2) is sent to information the program of microprocessor (8) and random asccess memory (10) flash memories (11) by communication bus, read the MP3 data of mobile memory (12) by USB holotype interface, sending into digital signal decoder decodes, digital-to-analogue conversion realizes the music playback through audio frequency amplifier (9), electronic sound volume controller (6), power amplifier (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520027035 CN2814919Y (en) | 2005-08-18 | 2005-08-18 | Vehicle receiving and broadcasting device capable of digital tuning reception and MP3 playing back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520027035 CN2814919Y (en) | 2005-08-18 | 2005-08-18 | Vehicle receiving and broadcasting device capable of digital tuning reception and MP3 playing back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814919Y true CN2814919Y (en) | 2006-09-06 |
Family
ID=36950006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520027035 Expired - Fee Related CN2814919Y (en) | 2005-08-18 | 2005-08-18 | Vehicle receiving and broadcasting device capable of digital tuning reception and MP3 playing back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814919Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308420A (en) * | 2014-10-10 | 2015-01-28 | 深圳市航盛电子股份有限公司 | Fixing device and fixing method of car audio power amplifier chip |
-
2005
- 2005-08-18 CN CN 200520027035 patent/CN2814919Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308420A (en) * | 2014-10-10 | 2015-01-28 | 深圳市航盛电子股份有限公司 | Fixing device and fixing method of car audio power amplifier chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20130818 |