CN201134257Y - On-vehicle DVD system - Google Patents
On-vehicle DVD system Download PDFInfo
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- CN201134257Y CN201134257Y CNU2007201961548U CN200720196154U CN201134257Y CN 201134257 Y CN201134257 Y CN 201134257Y CN U2007201961548 U CNU2007201961548 U CN U2007201961548U CN 200720196154 U CN200720196154 U CN 200720196154U CN 201134257 Y CN201134257 Y CN 201134257Y
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- 230000015654 memory Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 21
- 230000003321 amplification Effects 0.000 abstract description 6
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 6
- 230000001965 increasing effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
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Abstract
The utility model discloses a vehicle-mounted DVD system, which comprises a DVD core module, a memory, a controller, an audio amplification output and electronic volume regulator and a loudspeaker, wherein the DVD core module is respectively connected with the memory, the controller and the audio amplification output and electronic volume regulator, the output end of the audio amplification output and electronic volume regulator is connected with the loudspeaker. The utility model further comprises a voice tube, the DVD core module comprises a recording system, and the recording system is connected with the output end of the voice tube. Because the vehicle-mounted DVD system adds the function that the DVD core module is capable of recording programs which are acted by users or the sound of the surrounding environment of a vehicle, and the programs and the sound are stored in mobile storing equipment which are an MP3, an SD card and a USB stick and the like, thereby greatly increasing the function of man-machine conversation, meeting the demands of users, and increasing the utilization ratio of a vehicle-mounted sound system in greatest degree.
Description
Technical field
The utility model relates to a kind of automotive acoustics, in particular a kind of vehicle-carrying DVD system with recording device, and this recording device has inner sound-recording function and outside sound-recording function.
Background technology
Most of car audio system functions of the manufacturer production of production car audio system are all more single at present, its standard is fairly simple, such as generally only being with inner sound-recording function in the vehicle-carrying DVD, in progress CD, MP3 or the audio files of listening to such as radio station can only be recorded.The program of user oneself performance or the sound recording of environment surrounding automobile can not be got off, be kept on the movable storage devices such as MP3, SD card and USB flash disk.Along with increasing automobile enters average family, user's demand is also more and more diversified, and the outside sound-recording function of automobile audio becomes an additional function of liking that wins more consumers.
A kind of typical vehicle-carrying DVD system, generally has multiple signal source input, as optical disk systems such as CD, DVD, scratch pad memories such as USB storage, SD card, the radiovisor that also has radio or received television signal that has etc., video or audio player can be selected various signal sources under the control of control system, by display or/and loudspeaker plays, also can under the control of controller, duplicate by the signal to various signal sources, but not have outside sound-recording function.
In a word, the function of existing car audio system can not be met consumers' demand far away, and the car audio system utilization factor is low.Therefore, on the basis of the basic function that keeps former car audio system, car audio system is further improved, to increase the outside recording ability of vehicle-carrying DVD equipment, enlarge the range of application of movable storage devices such as MP3, SD card and USB flash disk, for the user provides the free space of MAXIMUM SELECTION song, farthest meet consumers' demand, be a kind of development and improved demand treated of prior art.
Summary of the invention
The purpose of this utility model is to be to provide a kind of vehicle-carrying DVD system, make the vehicle-carrying DVD system can record the program of user oneself performance or the sound of environment surrounding automobile, and it is kept on the movable storage devices such as MP3, SD card and USB flash disk, thereby enhancing man-machine conversation, improve the utilization factor of vehicle-carrying DVD system, farthest satisfy user's demand, embody human oriented design.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of vehicle-carrying DVD system, comprise DVD nucleus module, storer, controller, audio frequency amplification output and electronic sound volume regulator, loudspeaker, the DVD nucleus module amplifies output with storer, controller, audio frequency respectively and the electronic sound volume regulator is connected, audio frequency amplifies the output termination loudspeaker of output and electronic sound volume regulator, also comprise microphone, described DVD nucleus module comprises recording system, and this recording system connects the output terminal of described microphone.
Described vehicle-carrying DVD system, recording system is worked under the control of described controller, and it comprises audio process, A/D converter, scrambler, wherein:
The output terminal of the described microphone of input termination of described audio process, the described A/D converter of its output termination is handled described baseband signal under the control of described control system.
The output terminal of the described audio process of input termination of described A/D converter converts baseband signal to digital signal under the control of described control system, the input end of the described scrambler of its output termination.
The output terminal of the described A/D converter of input termination of described scrambler to described encoding digital signals, generates audio file under the control of control system, its output terminal outputs to described storer.
Described vehicle-carrying DVD system, scrambler is the MP3 scrambler, digital audio file is encoded into the file of MP3 format.
Described vehicle-carrying DVD system comprises stereo language recording playback chip in the DVD nucleus module, its analog input mouth tube of answering, and the simulation delivery outlet connects the input end that audio frequency amplifies output and electronic sound volume regulator, and digital interface connects described controller and storer respectively.
Described vehicle-carrying DVD system, memory storage comprises interface circuit and storer.Interface circuit is a USB interface, and storer is the memory bank that meets the USB standard.
Provided by the utility model is a kind of vehicle-carrying DVD system, make the vehicle-carrying DVD system can record the program of user oneself performance or the sound of environment surrounding automobile owing in novel vehicle-mounted sound system, increased, and it is kept at function on the movable storage devices such as MP3, SD card and USB flash disk, strengthened the man-machine conversation function greatly, satisfy user's demand, farthest improved the utilization factor of car audio system.
Below with reference to accompanying drawing, embodiment of the present utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the utility model functional block diagram.
Fig. 2 is the utility model embodiment one functional block diagram.
Fig. 3 is the utility model embodiment one recording part theory diagram.
Fig. 4 is the utility model embodiment two functional block diagram.
Embodiment
As shown in Figure 1, a kind of vehicle-carrying DVD system, comprise DVD nucleus module, storer, controller, audio frequency amplification output and electronic sound volume regulator, loudspeaker, the DVD nucleus module amplifies output with storer, controller, audio frequency respectively and the electronic sound volume regulator is connected, audio frequency amplifies the output termination loudspeaker of output and electronic sound volume regulator, also comprise microphone, described DVD nucleus module comprises recording system, and this recording system connects the output terminal of described microphone.
Described vehicle-carrying DVD system, recording system is worked under the control of described controller, and it comprises audio process, A/D converter, scrambler, wherein:
The output terminal of the described microphone of input termination of described audio process, the described A/D converter of its output termination is handled described baseband signal under the control of described control system.
The output terminal of the described audio process of input termination of described A/D converter converts baseband signal to digital signal under the control of described control system, the input end of the described scrambler of its output termination.
The output terminal of the described A/D converter of input termination of described scrambler to described encoding digital signals, generates audio file under the control of control system, its output terminal outputs to described storer.
Fig. 2 is the utility model embodiment one functional block diagram, as shown in the figure, this novel on-vehicle dvd system has the input of multiple signal source, as DVD player the DVD CD input system or the CD CD input system that all have, the optical disk system that also has the energy imprinting that has, the input source that other is arranged as, receive by the audio frequency of USB device or video file or the interface circuit by the SD card by usb circuit and to receive audio frequency or video file by the storage of SD card, multiple signal input sources such as radio and radiovisor are arranged, playing selectively under the control of the control system (controller) of DVD needs the program play, signal to various signal sources duplicates selectively under the control of DVD control system simultaneously, generally be that sound signal or the file in vision signal or the CD that will receive writes in USB storage or the SD card, can also receive by the sound of a microphone simultaneously the outside, to carry out baseband signal by the voice signal that microphone receives by audio process, utilize A/D converter to convert baseband signal to digital signal, encode by scrambler, generate the audio file of various forms up to specification, store in USB storage or the SD card.The sound that receives by microphone becomes in the loudspeaker to play by player after handling the back through audio process or becoming digital signal simultaneously.
Fig. 3 is the utility model embodiment one recording part theory diagram, as shown in the figure, embodiment with outside sound-recording function DVD sound equipment recording part is as follows: when sound equipment sends the order recording, electronic control unit MCU control DVD as the control system of DVD enters recording mode, source of sound is imported from microphone, source of sound sends to AD converter through Audio Processing, encodes through the MP3 codec after the conversion, is kept at last in the storer such as flash.
In embodiment 1, the main control chip of DVD (controller) is the Japanese TMP86FS49 of Toshiba (being encapsulated as 48PIN QFN 7.2 * 7.2), the USB main control chip is Taiwan SUNPLUS 8202, movement is the SHINWA C61 of Japan, and the model of fader is PT2313, and A/D converter is CS5342, electronic control unit MCU is ST72231, the MP3 codec is MLC3890, receives the few of requirement of flash memory on the USB, and that present embodiment uses is K9FIG08U0A.
The Specifeca tion speeification of present embodiment:
Rated operational voltage: 12.0V allows 9V～16V;
Environment temperature: radio reception tuner: working temperature-30 ℃～+ 70 ℃, storage temperature-40 ℃～+ 90 ℃
DVD player core: working temperature-30 ℃～+ 70 ℃, storage temperature-40 ℃～+ 90 ℃
-20 °～+ 40 ° of operating angle front and back, about ± 20 °
Working current:＜10A
Quiescent current :≤3mA
Fig. 4 is the utility model embodiment two functional block diagram, as shown in the figure, comprise stereo language recording playback chip in the DVD nucleus module, its analog input mouth connects described microphone, the simulation delivery outlet connects the input end that described audio frequency amplifies output and electronic sound volume regulator, and digital interface connects described controller and storer respectively.Here stereo language recording playback chip is the ML2308 of Japanese OKI (Oki Electric) company.ML2308 is by 1bit
Type AD and digital PWM drive output, carry the stereo language recording playback chip on two passages respectively.Because built-in stereophone, mono speaker all adopted the D-class driving, its utilization factor reaches about 80%.Except that DRC (Dynamic RangerController dynamic range controller) circuit, also built-in stereo Microphone (microphone) AMP and Line AMP, and the required peripheral circuit of analog signal processing is all put into a chip, for the user has saved the space as much as possible.In addition, because ML2308 supports that also Oki is distinctive, be suitable for OkiADPCM2 (adaptive audio pulse code) form and the Microsoft Windows of voice recording most
μ-lawPCM formatted file of supporting.
The input port of the built-in stereo Microphone AMP of the ML2308 tube of answering, built-in stereophone, mono speaker have all adopted D-class to drive mouth and have connect loudspeaker by audio frequency amplification output and electronic sound volume regulator, and digital mouthful is carried out exchanges data with storer under the control of controller.
The control system of above-described all embodiment is all controlled each several part by bus, each functional module all is described as a whole, may not so entirely in the real process, what have may be a function that chip is finished, what have may be to add that by a main chip peripheral components finishes function (as embodiment two), what also have may be that several chips are finished a function (as embodiment one) jointly, have plenty of that several functional modules are finished by a chip, topological structure and employed device as for control system adapt, and are not limited to bus structure.In several embodiment of the present utility model, vehicle-carrying DVD has increased outside sound-recording function, and the increase of these functions has strengthened man-machine conversation, also is the best embodiment of automobile hommization simultaneously.In addition, the function that the utility model embodiment increases has adopted modular design, be completely integrated on the pcb board, each module will realize that the function of self needs to communicate with system host MCU or ECU. and these are all finished by button for the user, and easy to operate.
Claims (9)
1, a kind of vehicle-carrying DVD system comprises that DVD nucleus module, storer, controller, audio frequency amplify output and electronic sound volume regulator, loudspeaker; The DVD nucleus module amplifies output with storer, controller, audio frequency respectively and the electronic sound volume regulator is connected, and audio frequency amplifies the output termination loudspeaker of output and electronic sound volume regulator; It is characterized in that: also have microphone; Described DVD nucleus module comprises recording system, and this recording system connects the output terminal of described microphone.
2, a kind of vehicle-carrying DVD according to claim 1 system, it is characterized in that: described recording system is worked under the control of described controller, and recording system comprises audio process, A/D converter, scrambler, wherein:
The output terminal of the described microphone of input termination of described audio process, the described A/D converter of its output termination is handled described baseband signal under the control of described control system;
The output terminal of the described audio process of input termination of described A/D converter converts baseband signal to digital signal under the control of described control system, the input end of the described scrambler of its output termination;
The output terminal of the described A/D converter of input termination of described scrambler to described encoding digital signals, generates audio file under the control of control system, its output terminal outputs to described storer.
3, a kind of vehicle-carrying DVD according to claim 2 system is characterized in that described scrambler is the MP3 scrambler, digital audio file is encoded into the file of MP3 format.
4, a kind of vehicle-carrying DVD according to claim 2 system is characterized in that the main control chip of described control system is the Japanese TMP86FS49 of Toshiba.
5, a kind of vehicle-carrying DVD according to claim 2 system is characterized in that the model of described A/D converter is CS5342.
6, a kind of vehicle-carrying DVD according to claim 1 system, it is characterized in that, comprise stereo language recording playback chip in the described DVD nucleus module, its analog input mouth connects described microphone, the simulation delivery outlet connects the input end that described audio frequency amplifies output and electronic sound volume regulator, and digital interface connects described controller and storer respectively.
7, a kind of vehicle-carrying DVD according to claim 6 system is characterized in that, described stereo language recording playback chip is the ML2308 of Japanese OKI company.
8, a kind of vehicle-carrying DVD according to claim 6 system is characterized in that described memory storage comprises interface circuit and storer.
9, a kind of vehicle-carrying DVD according to claim 8 system is characterized in that described interface circuit is a USB interface, and described storer is the memory bank that meets the USB standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961548U CN201134257Y (en) | 2007-12-19 | 2007-12-19 | On-vehicle DVD system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961548U CN201134257Y (en) | 2007-12-19 | 2007-12-19 | On-vehicle DVD system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134257Y true CN201134257Y (en) | 2008-10-15 |
Family
ID=40062525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201961548U Expired - Fee Related CN201134257Y (en) | 2007-12-19 | 2007-12-19 | On-vehicle DVD system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201134257Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413411A (en) * | 2011-11-08 | 2012-04-11 | 恩平市邦华电子有限公司 | Portable sound amplifier |
| CN104516449A (en) * | 2013-09-27 | 2015-04-15 | 歌乐株式会社 | Vehicular device, server, and information processing method |
| CN106055303A (en) * | 2016-05-31 | 2016-10-26 | 惠州华阳通用电子有限公司 | Control method and device of power amplifier mode of car-mounted terminal |
| CN107172536A (en) * | 2017-07-06 | 2017-09-15 | 李龙娟 | A kind of onboard audio controller |
-
2007
- 2007-12-19 CN CNU2007201961548U patent/CN201134257Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413411A (en) * | 2011-11-08 | 2012-04-11 | 恩平市邦华电子有限公司 | Portable sound amplifier |
| CN102413411B (en) * | 2011-11-08 | 2014-12-10 | 恩平市邦华电子有限公司 | Portable sound amplifier |
| CN104516449A (en) * | 2013-09-27 | 2015-04-15 | 歌乐株式会社 | Vehicular device, server, and information processing method |
| CN104516449B (en) * | 2013-09-27 | 2018-06-08 | 歌乐株式会社 | vehicle device, server and information processing method |
| CN106055303A (en) * | 2016-05-31 | 2016-10-26 | 惠州华阳通用电子有限公司 | Control method and device of power amplifier mode of car-mounted terminal |
| CN106055303B (en) * | 2016-05-31 | 2023-03-03 | 惠州华阳通用电子有限公司 | Control method and device for power amplification mode of vehicle-mounted terminal |
| CN107172536A (en) * | 2017-07-06 | 2017-09-15 | 李龙娟 | A kind of onboard audio controller |
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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: 20081015 Termination date: 20121219 |