CN202798952U - Three module integrated liquid crystal television receiver - Google Patents
Three module integrated liquid crystal television receiver Download PDFInfo
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- CN202798952U CN202798952U CN 201220440378 CN201220440378U CN202798952U CN 202798952 U CN202798952 U CN 202798952U CN 201220440378 CN201220440378 CN 201220440378 CN 201220440378 U CN201220440378 U CN 201220440378U CN 202798952 U CN202798952 U CN 202798952U
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- demodulator
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Abstract
The utility model provides a three model integrated liquid crystal television receiver which comprises a wireless signal receiving antenna (1), a power supply module (2), a main machine core plate (5) and a display module (10). A silicon high frequency head (3), a digital terrestrial multimedia broadcasting (DTMB) demodulator (4), a digital video broadcasting (DVB)-C demodulator (6), a main chip (7), a CI port (8) and a sound accompanying power amplifier port (9) are integrally arranged on the main machine core plate (5). The silicon high frequency head (3) is a digital/ analog integrated silicon high frequency head, the DVB-C demodulator (6) is integrated in the main chip (7) on the main machine core plate (5), a wireless signal receiving antenna (1) is connected with the silicon high frequency head (3) on the main machine core plate, and the display module (10) is a lateral-in type light-emitting diode (LED) ultrathin liquid crystal display screen. The three model integrated liquid crystal television receiver is capable of simultaneously supporting receiving of DTMB wireless digital signals, DVB-C wired digital signals and analog signals, and has the advantages of being compact in structure, simple in appearance, energy-saving and environment-friendly.
Description
Technical field
The utility model relates to the digital television application technical field, especially relates to a kind of three mould integrated liquid crystal display television receivers that can support simultaneously that these three kinds of mode signals of DTMB wireless digital signal, DVB-C cabled digital signal and analog signal receive.
Background technology
Development along with the information digitalization technology, Digital Television progressively enters common people's life, and, iterative method and DTMB(Digital Television Terrestrial Multimedia Broadcasting along with China's television digitization process, Digital Terrestrial Television Broadcast) implementation of pressure standard, traditional simulated television can not satisfy people to the demand of watching of the TV programme that becomes increasingly abundant, but, because odjective cause causes traditional simulated television also will have in future a period of time.Therefore, anolog TV signals, DTMB wireless digital signal and DVB-C(Digital Video Broadcasting-Cable, digital video broadcast for cable) signal of these three kinds of patterns of cabled digital signal also will coexist simultaneously.But, finish and after analog channel closes in digitlization, because traditional simulated television can only receive anolog TV signals, can not receive DTMB wireless digital signal and DVB-C cabled digital signal, therefore, traditional simulated television will no longer be subject to people's favor, and new digital TV integrated machine will be progressively welcomed by the people.
So-called digital TV integrated machine, namely digital signal reception, decoding are combined together with demonstration and no longer need the television set of set-top box, the mode that adds set-top box with simulated television is compared, the digital TV integrated machine integrated level is high, can realize omnidistance digitlization, be ideal rating mode, represented following development direction.Publication number is that the application for a patent for invention " a kind of channel searching method and digital television receiver based on the DTMB standard " of CN101459789A discloses a kind of digital television receiver based on the DTMB standard, comprises front end system, channel manage system, storage medium and business information resolution system.Front end system receives the channel that need to search for from the channel manage system, searches for multi-carrier mode and then searches for single carrier mode with the single carrier mode search and then with multi-carrier mode search or elder generation first; After a kind of mode locking wherein, the record present mode is to channel parameter, and the channel parameter currency is saved in storage medium by the channel manage system, then finishes the search of current channel, enters next channel search; Front end system receives channel and the channel parameter of switching channels from the channel manage system, and directly sets the modulating mode of current channel according to channel parameter, behind the semaphore lock, and the notification channel management system, output TS flows to the business information resolution system.This kind is primarily implemented in the situation of two kinds of carrier modes existence based on the digital television receiver of DTMB standard, carries out the technical solution of channel search, and improved the speed that channel switches.But, this digital television receiver is the reception based on the DTMB standard signal, the reception of DTMB wireless digital signal, DVB-C cabled digital signal and these three kinds of mode signals of analog signal can not be supported simultaneously, therefore, different crowds and different zones can not be well taken into account.
The utility model content
The purpose of this utility model is: for the problem of prior art existence, a kind of three mould integrated liquid crystal display television receivers are provided, can support simultaneously the reception of DTMB wireless digital signal, DVB-C cabled digital signal and these three kinds of mode signals of analog signal, increase the selectable range of rating program, take into account better the actual demand in different users and different zone.
The purpose of this utility model is achieved through the following technical solutions: a kind of three mould integrated liquid crystal display television receivers mainly comprise wireless signal receiving antenna, power module and main frame central layer and display module.Wherein, integrated silicon tuner, DTMB demodulator, DVB-C demodulator, master chip, CI(Common Interface, the general-purpose interface of being provided with on the main frame central layer) interface and audio power amplifier interface.The silicon tuner is the integrated silicon tuner of D/A, and the DVB-C demodulator is integrated in the master chip on the main frame central layer, and wireless signal receiving antenna is connected with silicon tuner on the main frame central layer, and display module is side entering type LED Ultrathin liquid crystal display screen.
Compared with prior art, a kind of three mould integrated liquid crystal display television receivers of the utility model combine digital received, decoding and demonstration together, support simultaneously the reception of DTMB wireless digital signal, DVB-C cabled digital signal and these three kinds of mode signals of analog signal, thereby take into account the rating demand in different users and different zone, and the user also no longer needs set-top box can realize watching of digital television program.The rating mode that adds set-top box with simulated television is compared, and this three moulds integrated liquid crystal display television receiver integrated level is high, can realize omnidistance digitlization, simultaneously, owing to realized complete built-inly, has avoided mixed and disorderly wiring, has the space of saving, the advantage such as easy to use.
Description of drawings
Fig. 1 is the theory diagram of a kind of three mould integrated liquid crystal display television receivers of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1: a kind of three mould integrated liquid crystal display television receivers mainly comprise wireless signal receiving antenna 1, power module 2 and main frame central layer 5 and display module 10.Wherein, integrated silicon tuner 3, DTMB demodulator 4, DVB-C demodulator 6, master chip 7, CI interface 8 and the audio power amplifier interface 9 of being provided with on the described main frame central layer 5.Described silicon tuner 3 is the integrated silicon tuner of D/A, described DVB-C demodulator 6 is integrated in the master chip 7 on the described main frame central layer 5, described wireless signal receiving antenna 1 is connected with silicon tuner 3 on the main frame central layer 5, and described display module 10 is side entering type LED Ultrathin liquid crystal display screen.
A kind of three mould integrated liquid crystal display television receivers of the utility model adopt the power module power supply in 2 minutes three tunnel of 220V alternating current input, both be responsible for the power supplies such as all signal processing, CI interface 8, IO control, core operation to silicon tuner 3, DTMB demodulator 4, audio/video decoding module, also responsible to display module 10 driving and backlightly provide required power supply.Following three functions of main frame central layer 5 main realizations: 1) digital signal or analog signal are carried out demodulation, decoding; 2) generate demonstration and control driving signal are finished video image and OSD to display module 10 demonstration; 3) pass through the controlled audio signal of audio power amplifier interface 9 output volumes to the speaker drive sounding.Therefore, after wireless signal receiving antenna 1 receives the DTMB wireless digital signal, be demodulated to by 3 frequency reducings of silicon tuner, DTMB demodulator 4 and send to master chip 7 behind the TS stream signal and decode, thereby obtain audio/video signal.In addition, a kind of three mould integrated liquid crystal display television receivers of the utility model are because integrated level is high, and complete machine adopts ultra-thin fuselage design, side entering type LED Ultrathin liquid crystal display screen energy-saving backlight wherein, both be conducive to environmental protection, be conducive to again alleviate the visual fatigue that the long-time TV reception of user causes.
When complete machine received the DTMB wireless digital signal, silicon tuner 3 output Low Medium Frequency signals demodulated the signal such as TS stream and decode to master chip 7 to DTMB demodulator 4, be reduced into image and sound by display module 10 and loud speaker at last; When complete machine receives DVB-C cabled digital signal, silicon tuner 3 output Low Medium Frequency signals carry out demodulation to the DVB-C demodulator 6 on the master chip 7, demodulate the TS that encrypts scrambling and flow signal to CI interface 8, be decrypted descrambling by the subscriber card that inserts CI interface 8 again, behind the DVB-C decrypted signal descrambling TS stream signal of " transparent " is exported to master chip 7 and decode, be reduced into image and sound by display module 10 and loud speaker at last; When complete machine received analog signal, silicon tuner 3 output Low Medium Frequency signals were decoded to master chip 7, are reduced into image and sound by display module 10 and loud speaker at last.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; should be pointed out that all any modifications of within spirit of the present utility model and principle, doing, be equal to replacement and improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. mould integrated liquid crystal display television receiver, mainly comprise wireless signal receiving antenna (1), power module (2) and main frame central layer (5) and display module (10), it is characterized in that: upper integrated silicon tuner (3), DTMB demodulator (4), DVB-C demodulator (6), master chip (7), CI interface (8) and the audio power amplifier interface (9) of being provided with of described main frame central layer (5).
2. a kind of three mould integrated liquid crystal display television receivers according to claim 1, it is characterized in that: described silicon tuner (3) is the integrated silicon tuner of D/A.
3. a kind of three mould integrated liquid crystal display television receivers according to claim 1 is characterized in that: described DVB-C demodulator (6) is integrated in the master chip (7) on the described main frame central layer (5).
4. a kind of three mould integrated liquid crystal display television receivers according to claim 1 is characterized in that: described wireless signal receiving antenna (1) is connected with silicon tuner (3) on the main frame central layer (5).
5. a kind of three mould integrated liquid crystal display television receivers according to claim 1, it is characterized in that: described display module (10) is side entering type LED Ultrathin liquid crystal display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220440378 CN202798952U (en) | 2012-08-31 | 2012-08-31 | Three module integrated liquid crystal television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220440378 CN202798952U (en) | 2012-08-31 | 2012-08-31 | Three module integrated liquid crystal television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798952U true CN202798952U (en) | 2013-03-13 |
Family
ID=47826120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220440378 Expired - Fee Related CN202798952U (en) | 2012-08-31 | 2012-08-31 | Three module integrated liquid crystal television receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967890A (en) * | 2015-08-05 | 2015-10-07 | 张峰 | Intelligent flat digital mobile television |
-
2012
- 2012-08-31 CN CN 201220440378 patent/CN202798952U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967890A (en) * | 2015-08-05 | 2015-10-07 | 张峰 | Intelligent flat digital mobile television |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150831 |
|
| EXPY | Termination of patent right or utility model |