CN206481412U - Portable car-mounted digital television system - Google Patents
Portable car-mounted digital television system Download PDFInfo
- Publication number
- CN206481412U CN206481412U CN201720051862.6U CN201720051862U CN206481412U CN 206481412 U CN206481412 U CN 206481412U CN 201720051862 U CN201720051862 U CN 201720051862U CN 206481412 U CN206481412 U CN 206481412U
- Authority
- CN
- China
- Prior art keywords
- unit
- digital television
- television system
- decoder element
- mounted digital
- 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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Abstract
The utility model is related to terrestrial DTV technical field, disclose a kind of portable car-mounted digital television system, including decoder element, tune demodulating unit, video unit, audio unit and power supply unit, said supply unit provides electric power for system, the tuning demodulating unit, video unit and audio unit are respectively connecting to the decoder element, after the tuning demodulating unit receives the ISDB T signals come from antenna transmission and demodulated, output data packet is to the decoder element, the decoder element is to the decoded packet data, the vision signal decoded is sent to video unit, the audio signal decoded is sent to audio unit.Function and the display function integration of TV that the utility model receives terrestrial DTV, realize miniaturization and portability.
Description
Technical field
The utility model is related to terrestrial DTV technical field, more particularly to a kind of portable car-mounted DTV system
System.
Background technology
With the popularization of ISDB-T ground digital television signal coverages, the television receiver of ground digital has extensively
Demand, when it is used in family expenses, the travelling performance of receiver is not required, but when applying in automobile, just to automobile
In high-speed mobile, the receptivity of ground digital television receiver has relatively higher requirement, and is substantially land used at present
Face Digital TV Receiver Box is received after ISDB-T signal, is exported vision signal and is shown to display end, therefore the space accounted for
Than larger, install more complicated.
Utility model content
The utility model is in order to solve the above-mentioned technical problem there is provided a kind of portable car-mounted digital television system, by ground
The function of Digital TV Receiving and the display function integration of TV, realize miniaturization and portability.
To achieve these goals, the utility model provides following technical scheme：
A kind of portable car-mounted digital television system, it is characterized in that, including decoder element, tuning demodulating unit, video
Unit, audio unit and power supply unit, said supply unit provide electric power, the tuning demodulating unit, video unit for system
The decoder element is respectively connecting to audio unit, the tuning demodulating unit receives the ISDB-T come from antenna transmission
After signal and demodulation, output data packet to the decoder element, the decoder element will be decoded to the decoded packet data
The vision signal gone out is sent to video unit, and the audio signal decoded is sent to audio unit.
Further, the decoder element includes register and flash memory, is respectively used to data exchange and preservation.
Further, the video unit includes screen crystal drive circuit, display screen and remote control.
Further, the audio unit includes power amplifier, loudspeaker and earphone base.
Further, the decoder element is also associated with USB module and bluetooth module.
Further, FM transmitter modules are connected on the audio unit.
Further, the portable car-mounted digital television system is encapsulated in housing, on the housing install display screen,
Antenna receives head, earphone base, power socket.
The beneficial effects of the utility model are：
(1) function of receiving terrestrial DTV and the display function integration of TV, are available for user to take receipts
ISDB-T TV programme are seen, be could be secured on support, it is user-friendly by sucker suction on the glass of automobile.
(2) on the basis of ISDB-T digital television programs are played, USB multimedias, bluetooth, FM transmittings etc. are added
Function, the function such as the music for the bluetooth equipment that can be achieved to receive calls, play, when user is unsatisfactory for ISDB-T in-car TVs in itself
When loudspeaker are exported, the FM functions that can be carried with automobile receive the audio that the transmission of television of this portable digital goes out, and pass through vehicle audio
System is played out.
Brief description of the drawings
Accompanying drawing 1 is modular construction schematic diagram of the present utility model；
Accompanying drawing 2 is the utility model product shape figure.
Mark in accompanying drawing is respectively：
1. power supply unit；2. tune demodulating unit；
3. flash memory；4. register；
5. decoder element；6. screen crystal drive circuit；
7. power amplifier；8. display screen；
9. loudspeaker；10. earphone base；
11. bluetooth module；12.FM transmitter modules；
13.USB modules；14. earphone base；
15. remote control reception head；16. antenna terminal；
17. display screen；18. earphone base；
19. power socket；20.USB interfaces；
21. remote control reception mouthful；22.MIC mouthfuls；
23. button.
Embodiment
The embodiment to the portable car-mounted digital television system of the utility model elaborates below.
Referring to accompanying drawing 1, portable car-mounted digital television system, including decoder element 5, tuning demodulating unit 2, video list
Member, audio unit and power supply unit 1.
Power supply unit 1 is after vehicle power is inputted, by by voltage-regulator diode, PNP triode, the overvoltage of metal-oxide-semiconductor composition
It is depressured after protection circuit, resettable fuse, the filter circuit being made up of wire-wound inductor and electric capacity to unit in system
Circuit is powered.
Tuning demodulating unit 2, video unit and audio unit are respectively connecting to decoder element 5, and tuning demodulating unit 2 connects
After receiving the ISDB-T signals come from antenna transmission and demodulating, output data packet to decoder element 5, the logarithm of decoder element 5
According to bag decoding, the vision signal decoded is sent to video unit, the audio signal decoded is sent to audio unit.Solution
Code device unit 5 includes register 4 and flash memory 3, is respectively used to data exchange and preservation.Video unit includes screen crystal drive circuit 6, display
Screen 8 and remote control 15.Audio unit includes power amplifier 7, loudspeaker 9 and earphone base 10.Decoder element is also associated with USB moulds
Block 13 and bluetooth module 11.FM transmitter modules 12 are connected on audio unit.
Specifically, ISDB-T tunes demodulating unit 2, receives after the ISDB-T signals come from antenna transmission, in solving
Frequently, after demodulated, TS packets is exported, decoder element 5 is transferred to.Decoder element 5 passes through I2C and tuning demodulation chip
Communicated, write register 4, controller is received the operation such as platform, lock station, then by the TS decoded packet datas transmitted, solved
YPBPR vision signals and simulated audio signal.YPBPR signals are transferred to screen and driven after chip by screen crystal drive circuit 6, are converted into RGB letters
Number export and to be shown to LCD display 8, LCD display is 7 cun of screens.Audio signal is input to after power amplifier 7, by raising one's voice
Device 9 and earphone base 10 are exported, or are directly exported by earphone base 14.Also it can be launched by FM transmitter modules 12 and be connect to vehicle-mounted FM
Receive, the output switching control of sound is controlled by decoder element 5.The audio signal that bluetooth module 11 is exported is input to work(
Put and be output to loudspeaker or earphone base, while also entering into after FM transmitter modules 12 through being launched by FM transmitting chips.Decoder
Unit 5 reads the multimedia file of USB module 13, carries out the display of picture and the broadcasting of audio frequency and video.Remote control reception first 15, connects
Screen is transmitted to after the signal for receiving remote control and drives chip, the parameter adjustment of screen is controlled, screen, which drives chip, also believes the remote control received
Number, transcoding is carried out, IR signals are simulated, decoder element is transferred to, the receipts platform of TV is carried out, switches resolution ratio, menu operation etc.
Control.
Referring to accompanying drawing 2, portable car-mounted digital television system is encapsulated in housing, housing mounted antennas joint 16,
Display screen 17, earphone base 18, power socket 19, USB interface 20, remote control reception mouth 21, MIC mouths 22, some buttons 23 etc., conveniently make
With.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of the utility model principle is not departed from, can also make some improvements and modifications, these improvements and modifications
Also it should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of portable car-mounted digital television system, it is characterised in that：Including decoder element, tuning demodulating unit, video
Unit, audio unit and power supply unit, said supply unit provide electric power, the tuning demodulating unit, video unit for system
The decoder element is respectively connecting to audio unit, the tuning demodulating unit receives the ISDB-T come from antenna transmission
After signal and demodulation, output data packet to the decoder element, the decoder element will be decoded to the decoded packet data
The vision signal gone out is sent to video unit, and the audio signal decoded is sent to audio unit.
2. portable car-mounted digital television system according to claim 1, it is characterised in that：The decoder element includes
Register and flash memory, are respectively used to data exchange and preservation.
3. portable car-mounted digital television system according to claim 1, it is characterised in that：The video unit includes screen
Crystal drive circuit, display screen and remote control.
4. portable car-mounted digital television system according to claim 1, it is characterised in that：The audio unit includes work(
Discharge road, loudspeaker and earphone base.
5. portable car-mounted digital television system according to any one of claim 1 to 4, it is characterised in that：The solution
Code device unit is also associated with USB module and bluetooth module.
6. portable car-mounted digital television system according to claim 4, it is characterised in that：Connected on the audio unit
FM transmitter modules.
7. portable car-mounted digital television system according to any one of claim 1 to 4, it is characterised in that：It is described just
Take formula vehicle-mounted digital television system to be encapsulated in housing, display screen, antenna are installed on the housing and receive head, earphone base, electricity
Source(-)holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720051862.6U CN206481412U (en) | 2017-01-17 | 2017-01-17 | Portable car-mounted digital television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720051862.6U CN206481412U (en) | 2017-01-17 | 2017-01-17 | Portable car-mounted digital television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206481412U true CN206481412U (en) | 2017-09-08 |
Family
ID=59754236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720051862.6U Expired - Fee Related CN206481412U (en) | 2017-01-17 | 2017-01-17 | Portable car-mounted digital television system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206481412U (en) |
-
2017
- 2017-01-17 CN CN201720051862.6U patent/CN206481412U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170908 Termination date: 20180117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |