CN2762223Y - Vehicle medium center device - Google Patents
Vehicle medium center device Download PDFInfo
- Publication number
- CN2762223Y CN2762223Y CN 200420102768 CN200420102768U CN2762223Y CN 2762223 Y CN2762223 Y CN 2762223Y CN 200420102768 CN200420102768 CN 200420102768 CN 200420102768 U CN200420102768 U CN 200420102768U CN 2762223 Y CN2762223 Y CN 2762223Y
- Authority
- CN
- China
- Prior art keywords
- audio
- scrambler
- usb
- audio decoder
- stereo
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model discloses a medium center device on vehicles, which comprises at least a set of stereo audio output terminals, a USB connecting terminal, a USB HOST controller, a set of audio input/output ports of a mobile telephone used for transporting communicative audio signals, a built-in microphone, an input keyboard and a digital format audio decoder/ encoder, wherein one path of the built-in microphone is connected with a corresponding input terminal port of the audio decoder/ encoder, and the other path is connected with the audio output port of a mobile telephone, the audio input ports of a mobile telephone are connected with corresponding input terminal ports of the audio decoder/ encoder, the USB connecting terminal is connected in bidirectional communication with the corresponding input terminal port of the audio decoder/ encoder via the USB HOST controller, and the stereo audio output terminals are connected with corresponding output terminal ports of the audio decoder/ encoder. The utility model has the advantages that the utility model is not only convenient for people to listen to music by using a USB memory device or a memory card in the medium center device on vehicles, but also can take down the mobile telephone content and various audio signals.
Description
Technical field
The utility model relates to a kind of vehicle-mounted media center fixture based on USB interface and MP3/WMA player.
Background technology
Vehicular entertainment medium device now has audio tape cassette player, CD player, VCD machine, DVD player etc. basically.What the medium of audio tape cassette player were used is audio tape, and acoustical quality is poor, and the holding time is short; The tonequality of CD, DVD is good, but not erasable; The tonequality of VCD is inferior to CD, and is also not erasable; These vehicular entertainment medium devices portable relatively poor.And its function singleness, only be used for listening the song amusement.
The utility model content
The purpose of this utility model is to provide a kind of not only can be convenient for people to listoning music on automobile, and can carry out the vehicle-mounted media center fixture of mobile phone minutes.
For realizing above purpose, a kind of vehicle-mounted media center fixture that the utility model provides is characterized in that comprising:
One can be connected the power supply changeover device that is used to provide operating voltage with vehicle power,
At least one group of stereo audio lead-out terminal that is used for output audio signal to vehicle power amplifier, with the loudspeaker plays of sound signal to the automobile,
A USB splicing ear that is used to connect the external USB storer, with the data that read USB storage the inside or write data to USB storage,
A USB HOST controller that is used for carrying out communication with USB storage,
One group of handset audio I/O port that is used to transmit the conversation sound signal,
A built-in microphone,
An input keyboard,
A digital format audio decoder/scrambler,
Wherein, input keyboard connects corresponding keyboard access interface on audio decoder/scrambler, built-in microphone one tunnel connects corresponding input port on audio decoder/scrambler, another road connects the handset audio delivery outlet, the handset audio input port connects corresponding input port on audio decoder/scrambler, the USB splicing ear is connected with corresponding input port both-way communication on audio decoder/scrambler through USB HOST controller, and the stereo audio lead-out terminal connects corresponding output port on audio decoder/scrambler.
The utility model comprises an audio delay device that is used to prevent acoustic feedback, and the audio delay device is connected on handset audio input port and the audio decoder/scrambler between the corresponding input port.
The utility model comprises memory card interface and memory card controller, and memory card interface is connected with USBHOST controller both-way communication through memory card controller.Read the data of external memory card or write data into external memory card, to expand storage space.
The utility model comprises a FM stereo tuner, one group of stereo audio is assisted input terminal and multi-channel audio input electronic switch, and described audio delay device, FM stereo tuner, one group of stereo audio input terminal are connected with respective input mouth on audio decoder/scrambler through change-over switch.
The utility model comprises a LCDs that is used for show state, information, and LCDs is connected with corresponding shows signal output port on audio decoder/scrambler.
The utility model sound signal of will conversing is handled through digital format audio decoder/scrambler, realizes the real time record of mobile phone meeting; The USB storage of can pegging graft and storage card, memory capacity is big, can be repeatedly erasable, is convenient for carrying, and adopts digital audio format tonequality big near CD, ratio of compression, can arbitrarily download or with software oneself making, music sources is enriched by the Internet.Not only be convenient for people on automobile, USB storage or storage card be come listoning music but also energy headphone content and various sound signal by this media center device.
Description of drawings
Fig. 1 is the theory diagram of the utility model specific embodiment.
Embodiment
Present embodiment comprises that model is MP3 decoding/scrambler (MP3 decoding of this model/scrambler needs the D and D/A converter of external model TLV320AIC23B) of S5L840F, two groups of stereo audio lead-out terminals, the USB splicing ear, model is the USB HOST controller of TMC51F, one group of handset audio I/O port, built-in microphone, input keyboard, 128 * 32 LCDs, the eight-in-one memory card interface, model is the memory card controller of AU9362, model is the audio delay device of PT2399, model is the FM stereo tuner of TEA5767, it is multi-channel audio input electronic switch and the power supply changeover device of CD4052 that one group of stereo audio is assisted input terminal and model, and power supply changeover device is connected with vehicle power, exportable 3.3V, 1.8V, positive and negative 5V is used to provide the operating voltage of above-mentioned each ingredient.Wherein, input keyboard and LCDs insert the keyboard port on MP3 decoding/scrambler and show output port.Built-in microphone one tunnel connects corresponding input port on MP3 decoding/scrambler, another road connects the handset audio delivery outlet, the handset audio input port connects corresponding audio input port on MP3 decoding/scrambler, the USB splicing ear is connected with corresponding input port both-way communication on MP3 decoding/scrambler through USB HOST controller, and the stereo audio lead-out terminal connects audio output port on MP3 decoding/scrambler.Memory card interface is connected with USB HOST controller both-way communication through memory card controller.Audio delay device, FM stereo tuner, one group of stereo audio input terminal are connected with respective input mouth on MP3 decoding/scrambler through change-over switch.
In addition to MP3 decoding/scrambler also can an external K9K1G the FLASH storer, when having circumscribed USB storer or storage card, not use, can write down the content of few capacity.
Above-mentioned digital format audio decoder/scrambler also can adopt ADPCM decoding/encoding device or WMA decoding/encoding device.
At music playing mode, the circumscribed USB storer, by USB HOST controller the MP3/WMA file of USB storage inside is sent to the MP3/WMA demoder, is decoded into stereo audio signal, export to automobile-used audio-frequency power amplifier again and drive car horn with playing back music.
At music playing mode, but also external connection of storage card, the MP3/WMA file of storage card inside is sent to the MP3/WMA demoder by the storage card read-write controller, is decoded into stereo audio signal, export to automobile-used audio-frequency power amplifier again and drive car horn with playing back music.
At the voice recording mode, can convert conversation sound to electric signal by microphone and be sent to the MP3/ADPCM scrambler, be encoded into the file of MP3 or ADPCM form, be saved in USB storage by USB interface again, or be saved in storage card by memory card interface.
In the mobile phone communication pattern, to carry out several milliseconds of delay process (preventing acoustic feedback) from the sound signal of handset audio delivery outlet to a few tens of milliseconds, send into the MP3/ADPCM scrambler, deliver to audio output then, be sent to power amplifier again and drive car horn, and microphone signal directly passes to the audio frequency input of mobile phone, with the remote call function of realization with other people, and dialog context can be used the MP3/ADPCM scrambler, be encoded into the file of MP3 or ADPCM form, be saved in USB storage by USB interface again, or be saved in storage card by many specifications memory card interface; Promptly realized the mobile phone record.
The sound signal of external audio frequency apparatus output can be delivered to audio input end, is sent to power amplifier again and drives car horn.And can use the MP3/ADPCM scrambler, and be encoded into the file of MP3 or ADPCM form, be saved in USB storage by USB interface again, or be saved in storage card by many specifications memory card interface.
Have a car antenna input port, built-in FM stereo tuner can receive the FM multiplex terrestrial broadcasting, and the stereo audio signal after the FM demodulation is delivered to audio input end, is sent to power amplifier again and drives car horn.And can use the MP3/ADPCM scrambler, and be encoded into the file of MP3 or ADPCM form, be saved in USB storage by USB interface again, or be saved in storage card by many specifications memory card interface.
Claims (5)
1, a kind of vehicle-mounted media center fixture is characterized in that comprising:
One can be connected the power supply changeover device that is used to provide operating voltage with vehicle power,
At least one group of stereo audio lead-out terminal that is used for output audio signal to vehicle power amplifier,
A USB splicing ear that is used to connect the external USB storer,
A USB HOST controller that is used for carrying out communication with USB storage,
One group of handset audio I/O port that is used to transmit the conversation sound signal,
A built-in microphone,
An input keyboard,
A digital format audio decoder/scrambler,
Wherein, input keyboard connects corresponding keyboard access interface on audio decoder/scrambler, built-in microphone one tunnel connects corresponding input port on audio decoder/scrambler, another road connects the handset audio delivery outlet, the handset audio input port connects corresponding input port on audio decoder/scrambler, the USB splicing ear is connected with corresponding input port both-way communication on audio decoder/scrambler through USB HOST controller, and the stereo audio lead-out terminal connects corresponding output port on audio decoder/scrambler.
2, vehicle-mounted media center fixture according to claim 1 is characterized in that comprising an audio delay device that is used to prevent acoustic feedback, and the audio delay device is connected on handset audio input port and the audio decoder/scrambler between the corresponding input port.
3, vehicle-mounted media center fixture according to claim 1 is characterized in that comprising memory card interface and memory card controller, and memory card interface is connected with USB HOST controller both-way communication through memory card controller.
4, vehicle-mounted media center fixture according to claim 1 and 2, it is characterized in that comprising a FM stereo tuner, one group of stereo audio is assisted input terminal and multi-channel audio input electronic switch, and described audio delay device, FM stereo tuner, one group of stereo audio input terminal are connected with respective input mouth on audio decoder/scrambler through change-over switch.
5, vehicle-mounted media center fixture according to claim 1 is characterized in that comprising a LCDs that is used for show state, information, and LCDs is connected with corresponding shows signal output port on audio decoder/scrambler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420102768 CN2762223Y (en) | 2004-12-21 | 2004-12-21 | Vehicle medium center device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420102768 CN2762223Y (en) | 2004-12-21 | 2004-12-21 | Vehicle medium center device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762223Y true CN2762223Y (en) | 2006-03-01 |
Family
ID=36095339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420102768 Expired - Fee Related CN2762223Y (en) | 2004-12-21 | 2004-12-21 | Vehicle medium center device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762223Y (en) |
-
2004
- 2004-12-21 CN CN 200420102768 patent/CN2762223Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |