CN202406244U - Digital television system - Google Patents
Digital television system Download PDFInfo
- Publication number
- CN202406244U CN202406244U CN2012200060579U CN201220006057U CN202406244U CN 202406244 U CN202406244 U CN 202406244U CN 2012200060579 U CN2012200060579 U CN 2012200060579U CN 201220006057 U CN201220006057 U CN 201220006057U CN 202406244 U CN202406244 U CN 202406244U
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- China
- Prior art keywords
- signal
- control signal
- video
- stb
- receiving system
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Abstract
The utility model discloses a digital television system. The digital television system comprises a first control signal receiving device, a second control signal receiving device, a junction box and a set top box. The junction box and the set top box are connected through Ethernet. The set top box is used for receiving a path of wired television signals and decomposing the wired television signal into a first wired television signal and a second wired television signal; decoding the first wired television signal according to a first control signal to generate a first video and audio signal and transmitting the first video and audio signal to a first television; and decoding the second wired television signal according to a second control signal to generate a second video and audio signal and transmitting the second video and audio signal to a second television via an Ethernet cable and the junction box. The digital television system can enable two televisions to independently receive television programs with one set top box.
Description
Technical field
The utility model relates to wired TV domain, particularly, relates to a kind of digital television system.
Background technology
At present, have the family of two TVs will make every TV can both TV reception, the method that can adopt has two kinds; A kind ofly be to use two STBs, the application two ways of digital signals, this method can make two TV independence TV receptions; But need repeat charge, cost is higher; The 2nd, utilize DTV shared device (like the infrared remote control transponder), though this kind method can realize strange land remote control respectively, can only support the program that different TV watching is identical.
The utility model content
The purpose of the utility model provides a kind of digital television system; This system is through ethernet line junctor top box and terminal box; Realize programme signal and the transmission of control signal between STB and terminal box; Thereby realize making two television sets independently watch DTV, and cost is lower with a STB.
To achieve these goals, the utility model provides a kind of digital television system, and this system comprises: the first control signal receiving system is used to receive first control signal; The second control signal receiving system is used to receive second control signal; Terminal box links to each other with the said second control signal receiving system, and links to each other through ethernet line with STB, is used for said second control signal is sent to said STB via said ethernet line; STB links to each other with the said first control signal receiving system, is used for: receive one road cable TV signal, and this cable TV signal is decomposed into first cable TV signal and second cable TV signal; According to said first control signal said first cable TV signal is decoded, generate first video/audio signal, and this first video/audio signal is sent to first television set; And according to said second control signal said second cable TV signal is decoded, generate second video/audio signal, and this second video/audio signal is sent to second television set via said ethernet line and terminal box.
Said first control signal receiving system and/or the said second control signal receiving system are infrared receiving device.
Said STB and said terminal box comprise the RJ45 interface respectively, and said ethernet line makes said STB link to each other with said terminal box through this RJ45 interface.
Five pins in the said RJ45 interface connect following signal terminal with mode one to one: composite video signal, DC-5V, left audio frequency, right audio frequency, with second control signal.
Eight pins in the said RJ45 interface connect following signal terminal with mode one to one: color difference components video Y, color difference components video Pb, color difference components video Pr, DC-5V, left audio frequency, right audio frequency, with second control signal.
The said second control signal receiving system connect through flexible conductor the pin that connects following signal terminal in the RJ45 interface of said terminal box: DC-5V, with second control signal.
Through technique scheme, the system of the utility model has realized the transmission of programme signal and control signal, has satisfied to greatly reduce cost when the user makes the requirement of two TV independence TV receptions through a STB.
Other feature and advantage of the utility model will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification, is used to explain the utility model with following embodiment, but does not constitute the restriction to the utility model.
Fig. 1 is the sketch map of the digital television system of the utility model.
Fig. 2 is the signal schematic representation in the ethernet line in the digital television system of the utility model when transmission SD signal.
Fig. 3 is the signal schematic representation in ethernet line in the digital television system of transmission the utility model during high-definition signal.
Embodiment
Be elaborated below in conjunction with the embodiment of accompanying drawing to the utility model.Should be understood that embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
Fig. 1 is the sketch map of the digital television system of the utility model.This system comprises the first control signal receiving system 101, the second control signal receiving system 102, terminal box 103 and STB 104.STB 104 links to each other with the first control signal receiving system 101, and links to each other through ethernet line 107 with terminal box 103.Terminal box 103 links to each other with the second control signal receiving system 102.
The first control signal receiving system 101 is used to receive first control signal.The second control signal receiving system 102 is used to receive second control signal.The first and second control signal receiving systems can be to be used to receive the infrared receiving device from the input signal of IR remote controller, or for being used for receiving the receiving system from the input signal of general signal input apparatus (for example, button).When the first and second control signal devices were infrared receiving device, first and second control signals were the infrared signal sent of remote controller (for example, closure plane top box, search for frequency, change platform, regulate volume, menu operation etc.).Generally speaking, the said first control signal receiving system can 101 be integrated in the said STB 104, and it can be and is used in the general STB to receive from the input signal of remote controller and/or from the device of the input signal of button on the STB.
STB 104 can receive one road cable TV signal, and this cable TV signal is decomposed into first cable TV signal and second cable TV signal; Afterwards; According to first cable TV signal being decoded from first control signal of the first control signal receiving system 101; Generate first video/audio signal, and with this first video/audio signal output (this first video/audio signal can be sent to first television set 105 via the standard RCA jack that is arranged on the STB 104); According to second cable TV signal being decoded from the second control signal receiving system 102 and through second control signal that terminal box 103 and ethernet line 107 are transferred to this STB 104; Generate second video/audio signal, and this second video/audio signal is transferred to terminal box 103 via ethernet line 107.This second video/audio signal can be sent to second television set 106 via terminal box 103.This second video/audio signal can pass through line preface conversion after be sent to second television set 106 by the standard RCA jack of terminal box in terminal box 103.
Wherein, said STB 104 comprises the RJ45 interface respectively with terminal box 103, and ethernet line 107 makes STB 104 link to each other with terminal box 103 through the RJ45 interface.Fig. 2 and Fig. 3 show respectively when second video/audio signal that transfers to said second television set 106 be the SD signal when offering a high price clearly signal, the signal that each pin transmitted of this RJ45 interface.
Fig. 2 is the signal schematic representation in the ethernet line in the digital television system of the utility model when transmission SD signal.When transmission SD signal, five pins in the RJ45 interface connect following signal terminal with mode one to one: composite video signal, DC-5V, left audio frequency, right audio frequency, with second control signal, as shown in Figure 2.
Fig. 3 is the signal schematic representation in ethernet line in the digital television system of transmission the utility model during high-definition signal.When the transmission high-definition signal; Eight pins in the RJ45 interface connect following signal terminal with mode one to one: color difference components video Y, color difference components video Pb, color difference components video Pr, DC-5V, left audio frequency, right audio frequency, with second control signal, as shown in Figure 3.
The second control signal receiving system 102 through one comprise three holding wires flexible conductor connect three pins of the RJ45 interface of terminal box 103, these three pins be respectively connect DC-5V, with the pin of the second control signal terminal.By this, the second control signal receiving system 102 can need not to be provided with in addition power supply through supplying power from STB and via the DC-5V of ethernet line transmission.
Pass through such scheme; The said first control signal receiving system 101, STB 104 and first television set 105 can be positioned at a room; The user can handle remote controller in this room; This remote controller sends control signal corresponding to the first control signal receiving system 101, and STB 104 can export the video/audio signal of first television set 105 according to the control signal control that this first control signal receiving system 101 receives to, realizes controlling first television set 105 by this; The said second control signal receiving system 102, terminal box 103 and second television set 106 can be positioned at another room; The user can handle remote controller in this room; This remote controller sends control signal corresponding to the second control signal receiving system 101; Can this control signal be sent to STB 104 via STB 104 and ethernet line 107 after this second control signal receiving system 101; STB 104 can be controlled the video/audio signal that exports second television set 106 via ethernet line and terminal box to according to this control signal, realizes controlling second television set 106 by this.Thereby the present invention can realize the function of two television set independence TV receptions through a STB.In addition, the second control signal receiving system 102 need not to be provided with in addition power supply, can be through supplying power from STB and via the DC-5V of ethernet line 107 transmission.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned execution mode; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection range of the utility model.
Need to prove in addition; Each concrete technical characterictic described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
Claims (6)
1. a digital television system is characterized in that, this system comprises:
The first control signal receiving system (101) is used to receive first control signal;
The second control signal receiving system (102) is used to receive second control signal;
Terminal box (103) links to each other with the said second control signal receiving system, and links to each other through ethernet line (107) with STB (104), is used for said second control signal is sent to said STB (104) via said ethernet line (107);
Said STB (104) links to each other with the said first control signal receiving system (101), is used for:
Receive one road cable TV signal, and this cable TV signal is decomposed into first cable TV signal and second cable TV signal;
According to said first control signal said first cable TV signal is decoded, generate first video/audio signal, and this first video/audio signal is sent to first television set (105); And
According to said second control signal said second cable TV signal is decoded, generate second video/audio signal, and this second video/audio signal is sent to second television set (106) via said ethernet line (107) and terminal box (103).
2. system according to claim 1 is characterized in that, said first control signal receiving system (101) and/or the said second control signal receiving system (102) are infrared receiving device.
3. system according to claim 1 is characterized in that, said STB (104) and said terminal box (103) comprise the RJ45 interface respectively, and said ethernet line (107) makes said STB (104) link to each other with said terminal box (103) through this RJ45 interface.
4. system according to claim 3 is characterized in that, five pins in the said RJ45 interface connect following signal terminal with mode one to one: composite video signal, DC-5V, left audio frequency, right audio frequency, with second control signal.
5. system according to claim 3; It is characterized in that eight pins in the said RJ45 interface connect following signal terminal with mode one to one: color difference components video Y, color difference components video Pb, color difference components video Pr, DC-5V, left audio frequency, right audio frequency, with second control signal.
6. according to claim 4 or 5 described systems, it is characterized in that, the said second control signal receiving system (102) connect through flexible conductor the pin that connects following signal terminal in the RJ45 interface of said terminal box (103): DC-5V, with second control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200060579U CN202406244U (en) | 2012-01-06 | 2012-01-06 | Digital television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200060579U CN202406244U (en) | 2012-01-06 | 2012-01-06 | Digital television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202406244U true CN202406244U (en) | 2012-08-29 |
Family
ID=46703858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200060579U Expired - Lifetime CN202406244U (en) | 2012-01-06 | 2012-01-06 | Digital television system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202406244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442288A (en) * | 2013-08-30 | 2013-12-11 | 广州市动景计算机科技有限公司 | Method, device and system for processing of trans-equipment data contents |
| CN103546801A (en) * | 2013-10-24 | 2014-01-29 | 深圳创维－Rgb电子有限公司 | Method, device and system for video conversion control |
-
2012
- 2012-01-06 CN CN2012200060579U patent/CN202406244U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442288A (en) * | 2013-08-30 | 2013-12-11 | 广州市动景计算机科技有限公司 | Method, device and system for processing of trans-equipment data contents |
| CN103546801A (en) * | 2013-10-24 | 2014-01-29 | 深圳创维－Rgb电子有限公司 | Method, device and system for video conversion control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |