CN203219437U - A digital television terminal system - Google Patents
A digital television terminal system Download PDFInfo
- Publication number
- CN203219437U CN203219437U CN 201320128522 CN201320128522U CN203219437U CN 203219437 U CN203219437 U CN 203219437U CN 201320128522 CN201320128522 CN 201320128522 CN 201320128522 U CN201320128522 U CN 201320128522U CN 203219437 U CN203219437 U CN 203219437U
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- power line
- module
- power
- digital television
- terminal system
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Abstract
The utility model provides a digital television terminal system comprising a terminal apparatus and a sub-receiver which are connected with each other through a power wire. The sub-receiver is externally connected with a television apparatus. The digital television terminal system has the advantages that: the power wire is employed for transmission of data, establishment of a local area network is avoided, the power wire connected to the terminal apparatus and the sub-receiver has functions of both power supply and carrier, machine interfaces and connection operations are simplified, electric carrier signals can be transmitted through original power supply circuits in the scope of a family or a hotel, flexibility and convenience are provided, wiring and network establishment are not required and occupation of existing network bandwidth is prevented.
Description
Technical field
The utility model relates to TV technology, relates in particular to a kind of digital television terminal system.
Background technology
Digital TV terminal is used for receiving the decode digital television signal, can only export one tunnel audio frequency and video usually simultaneously to video screen.A few devices can be exported on two-path video to the two different screen simultaneously, but need be used in the scope that video signal cable (YPbPr cable or HDMI cable etc.) can reach.For making a locking terminal equipment can play two covers even more TV programme simultaneously, need to be loaded with signal of TV program and transmit again, received and decoding by many estrades equipment, export to supporting video screen again and show.A kind of such implementation method is: terminal equipment is packaged into the IP packet again after to the signal demodulation, in the ether online broadcast; Subset receives corresponding IP packet, solves data again, gives decoder decode and becomes audio frequency and video.Like this, in family or hotel's environment, only need the such equipment of a cover, the broadcasting data just can realize that one overlaps digital television terminal and exports the purpose of multi-channel tv programs to the video screen simultaneously in local area network (LAN), but need layout network line again, and can take the existing network bandwidth.
The utility model content
At the problems referred to above, the purpose of this utility model is to provide a kind of digital television terminal system, need not build network, not take the existing network bandwidth.
To achieve these goals, the utility model provides a kind of digital television terminal system, comprise terminal equipment, slave receiver, described terminal equipment is connected by power line with slave receiver, terminal equipment comprises the first power line carrier module, the data that the first power line carrier module is used for demultiplexing module is transferred out are modulated into power carrier signal, described slave receiver comprises the second power line carrier module, and the second power line carrier module is used for power carrier signal is demodulated to the digital television program data.
According to described digital television terminal system, described terminal equipment comprises the tuner that connects successively, demodulator, demultiplexing module, the first power line carrier module is connected with demultiplexing module, respectively with tuner, demodulator, demultiplexing module, the central processing unit that the first power line carrier module connects, with with power circuit electric energy conversion processing and to the power module of each several part power supply, wherein the first power line carrier module is used for and will be modulated into power carrier signal from the data that demultiplexing module transfers out, central processing unit control tuner carries out channel selection, and makes demultiplexing module extract the PES data of respective program; Described slave receiver comprises with the second power line carrier module and is connected audio/video decoder, the central processing unit that is connected with audio/video decoder with the second power line carrier module respectively, with with power circuit electric energy conversion processing and to the power module of each several part power supply, wherein audio/video decoder is used for the digital television program number certainly is decoded into audio-video signal, then audio-video signal is transferred to television equipment.
According to described digital television terminal system, also comprise television equipment, television equipment is connected with slave receiver.
According to described digital television terminal system, described power line is the power line of 220V or 110V.
According to described digital television terminal system, described television equipment is television set, computer or hand held television terminal.
The digital television terminal system that the utility model provides, utilize power line to carry out the transmission of data, avoid the foundation of local area network (LAN), the power line of access terminal equipment and slave receiver has been taken on power supply and two kinds of functions of carrier wave, machine interface and attended operation have been simplified, power carrier signal is used original supply line in scopes such as family and hotels and is transmitted, and not only flexibly but also easy, has removed wiring from and sets up network or take the problem of existing network bandwidth.
Description of drawings
Fig. 1 is the utility model embodiment digital television terminal system theory diagram;
Fig. 2 is the terminal equipment theory diagram of the utility model embodiment digital television terminal system;
Fig. 3 is the slave receiver theory diagram of the utility model embodiment digital television terminal system.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
With reference to shown in Figure 1, the digital television system that present embodiment provides comprises terminal equipment 1, and slave receiver 2, terminal equipment 1 and slave receiver 2 are connected by power line, also comprise television equipment 3, and television equipment 3 is connected with slave receiver 2.
With reference to shown in Figure 2, terminal equipment comprises the tuner 11 that connects successively, demodulator 12, demultiplexing module 13, with the first power line carrier module 14, respectively with tuner 11, demodulator 12, demultiplexing module 13, the central processing unit (CPU) 15 that the first power line carrier module 14 connects, with with power circuit electric energy conversion processing and to the power module 16 of each several part power supply, tuner 11 receiving digital television signals wherein, adjust the digital television signal frequency and carry out A/D and be converted to digital signal, digital signal is sent into demodulator 12 carry out demodulation, output MPTS data, deliver to demodulation multiplexer module 13, demodulation multiplexer module 13 is extracted a program from transmit flow data packing audio frequency and video flow (PES) data substantially, comprise video PES, audio frequency PES and auxiliary data PES, comprise a descrambling module in the demultiplexing module 13, can carry out descrambling to the data of scrambling in transport stream layer and basic fluid layer, export the audio frequency and video PES of descrambling, import the first power carrier module 14 through the audio frequency and video PES of descrambling and be modulated into power carrier signal, and give slave receiver 2 by power line transmission, central processing unit (CPU) 15 control tuners 11 carry out channel (program) to be selected, and makes demultiplexing module 13 extract the PES data of respective program.
Above-mentioned slave receiver 2 comprises the interconnective second power line carrier module 22 and audio/video decoder 23, the central processing unit (CPU) 24 that is connected with audio/video decoder 23 with the second power line carrier module 22 and with power circuit electric energy conversion processing and to the power module 21 of each several part power supply respectively.The second power line carrier module 22 of slave receiver 2 is demodulated to the power carrier signal that receives audio frequency and video PES and exports to audio/video decoder 23, and audio/video decoder 23 is decoded as it audio-video signal and exports to television equipment 3.
Above-mentioned power line is 220V or 110V power line, utilizes the original power circuit in the Architectural Equipment to get final product like this, need not lay power line again.
Above-mentioned television terminal 3 can be the common TV of family expenses at ordinary times, also can be computer or handheld terminal.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the utility model just for convenience of description.
Claims (5)
1. digital television terminal system, it is characterized in that, comprise terminal equipment, slave receiver, described terminal equipment is connected by power line with slave receiver, terminal equipment comprises the first power line carrier module, the data that the first power line carrier module is used for demultiplexing module is transferred out are modulated into power carrier signal, and described slave receiver comprises the second power line carrier module, and the second power line carrier module is used for power carrier signal is demodulated to the digital television program data.
2. TV terminal system according to claim 1, it is characterized in that, described terminal equipment comprises tuner, demodulator, the demultiplexing module that connects successively, the first power line carrier module is connected with demultiplexing module, the central processing unit that is connected with tuner, demodulator, demultiplexing module, the first power line carrier module and with power circuit electric energy conversion processing and to the power module of each several part power supply respectively; Described slave receiver comprises with the second power line carrier module and is connected audio/video decoder, respectively the central processing unit that is connected with audio/video decoder with the second power line carrier module and with power circuit electric energy conversion processing and to the power module of each several part power supply.
3. digital television terminal system according to claim 1 is characterized in that, also comprises television equipment, and television equipment is connected with slave receiver.
4. digital television terminal system according to claim 1 is characterized in that, described power line is the power line of 220V or 110V.
5. digital television terminal system according to claim 3, described television equipment is television set, computer or hand held television terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128522 CN203219437U (en) | 2013-03-20 | 2013-03-20 | A digital television terminal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128522 CN203219437U (en) | 2013-03-20 | 2013-03-20 | A digital television terminal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203219437U true CN203219437U (en) | 2013-09-25 |
Family
ID=49208938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128522 Expired - Fee Related CN203219437U (en) | 2013-03-20 | 2013-03-20 | A digital television terminal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203219437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847908A (en) * | 2016-04-08 | 2016-08-10 | 微鲸科技有限公司 | Split display system based on power line system and split display method |
-
2013
- 2013-03-20 CN CN 201320128522 patent/CN203219437U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847908A (en) * | 2016-04-08 | 2016-08-10 | 微鲸科技有限公司 | Split display system based on power line system and split display method |
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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: 20130925 Termination date: 20160320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |