CN2496206Y - Cable TV frond-end signal processing unit with multiple video signal inputs - Google Patents
Cable TV frond-end signal processing unit with multiple video signal inputs Download PDFInfo
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- CN2496206Y CN2496206Y CN 01233208 CN01233208U CN2496206Y CN 2496206 Y CN2496206 Y CN 2496206Y CN 01233208 CN01233208 CN 01233208 CN 01233208 U CN01233208 U CN 01233208U CN 2496206 Y CN2496206 Y CN 2496206Y
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Abstract
The utility model relates to a network television front terminal signal processing device with a variety of video signals input. The front terminal signal processing device and a rear terminal signal processing device of the network television are separated, and the front terminal signal processing device is inserted in the slot of the rear terminal signal processing device. The decoder video output terminal is connected with a line-by-line scanning processor, the output terminal of the line-by-line scanning processor is connected to a television rear terminal signal processing video interface, and the decoder video input terminal can adopt more than one. The network television front terminal signal processing device also comprises a top wire which is provided with a telephone network and an Ethernet interface, and a hardware instruction processor for controlling and adjusting the data, the input terminal of the processor is connected with the video signal output terminal of the decoder, and the video output terminal of the network interface processor is connected with the line-by-line scanning circuit.
Description
Technical field
The utility model relates to a kind of control device of television set front end signal, especially a kind ofly have online, receive multiple TV signal, can with compunication, and have the control device of progressive-scan signal output.
Background technology
Along with development of internet technology, the network information becomes increasingly abundant, and as the fourth media, after step newspaper, broadcasting, the TV, takes the advantage of the information transmission restriction that is not subjected to time, space, and network gos deep in people's the live and work day by day.And at present, the reception and the transmission of most of network information are undertaken by computer, the entertainment orientation of network need promote people day by day by the demand of TV set internet, therefore increasing television set manufacturer, by attachment device such as set-top box is set on television set, make common television set have the ability of online.But, because the restriction of television set body, for example, television set is generally interlaced data and shows that its display precision is lower, can not satisfy the demand that the network information that shows is normally watched, existing TV-set top box only provides the approach of surfing the Net by telephone wire for television set, can not be connected for television set provides with other more approach, can not receive the data that different approaches is transmitted, for example not have and broadband connection.Therefore prior art can not change the display effect of television set, more can't adjust the sound effect that control is downloaded from the Internet.Have, prior art does not possess the interface with compunication yet again, the display terminal of television set as family just can not be able to not be expanded the use of television set.In addition, the TV set circuit device generally is divided into front end signal processing section and back end signal processing section.Received television signal is responsible in the front end signal processing section, to image, voice signal decodes, separating treatment; The processing and amplifying of the display driver and the sound of signal is responsible in the rear end.Common front end signal processing section and the design of back end signal processing section that is to say front end signal processing section and the back end signal processing section integral body as a physics on the circuit board of an integral body.The relative fixed of device such as display and audio amplifier, parts such as the display driver of back end signal processing section and sound amplification can immobilize.But because the source of television signal is more and more, and have nothing in common with each other, people have nothing in common with each other for the front end signal processing requirements, the front end signal processing section of television set needs to possess flexibility, has various function, should change easily, this just requires the front end signal processing section to separate setting with the back end signal processing section, and the back end signal processing section is as base plate, the front end signal processing section should plug thereon easily, so also meets big industrialization and personalized demands such as the manufacturing.
Summary of the invention
Main purpose of the present utility model is to provide the Web TV front end signal processing unit of one kind of multiple vision signals inputs, and it has the interface of various online, can access network based on ethernet, the internet.
Another purpose of the present utility model is to provide the Web TV front end signal processing unit of one kind of multiple vision signal inputs, and the signal that it exports to television set is a progressive-scan signal, has high definition.
Another purpose of the present utility model is to provide the Web TV front end signal processing unit of one kind of multiple vision signal inputs, and it can adjust the sound that different sources of sound are come.
A purpose more of the present utility model is to provide the Web TV front end signal processing unit of one kind of multiple vision signals inputs, and it and compunication realize the exchanges data of television set and computer, and can be with the display of television set as computer.
An also purpose of the present utility model is to provide the Web TV front end signal processing unit of one kind of multiple vision signal inputs, setting is separated with the back end signal processing section in the front end signal processing section, the back end signal processing section is as base plate, and the front end signal processing section should plug thereon easily
The purpose of this utility model is achieved in that
The Web TV front end signal processing unit of one kind of multiple vision signal inputs, it comprises colour decoder, video processing circuits and audio frequency processing circuit, wherein said Web TV front end signal processing unit and back end signal processing unit independently are provided with, and the front end signal processing unit is plugged in the slot of back end signal processing unit.
Described decoder is a digital decoder, and decoder video output connects progressive scan processor, and the progressive scan processor video output terminals is handled video interface (VGA, YPbPr) to the television set back end signal, and progressive scan processor also connects buffer.
Described progressive scan processor input also can connect the DVD output.
Described decoder video input can be more than one, for example can be television tuner, composite video (CVBS), YC component video signal (S-VIDEO), RGB component video signal (RGB).
Described Web TV front end signal processing unit also comprises the hardware instruction processor of online and data call control, the vision signal output of this processor input termination decoder and the video output terminals of network interface processor connect the circuit of lining by line scan, audio output connects back end signal processing audio interface by diverter switch, and the port of processor connects memory and buffer.Have again, the vision signal output of processor input termination decoder, the video output terminals of processor and the video output terminals of decoder connect the television set back end signal by change over switch and handle video interface.
Described processor input termination radio receiver is so that carry out the control information transmission with remote controller.
The network interface of described processor is more than one, for example is Ethernet interface, telephone line interface and outside independent source of sound interface.
According to the technique scheme analysis as can be known, the utlity model has following advantage:
1, setting is separated with the back end signal processing section in the front end signal processing section, and the front end signal processing section should install easily, dismantle, and promptly has been fit to big need of industrial production, has also satisfied the requirement that product is adjusted flexibly.
2, its signal of exporting to television set is a progressive-scan signal, and display resolution improves greatly, satisfies the basic requirement of Web TV.
3, have the defeated A of various video signal, satisfy different users' different demands, also insert the possibility of selection for the user provides the various video signal, the adaptation of product strengthens greatly.
4, the interface that has various online can access network based on ethernet, the special net of state, has expanded cyberspace, has enriched the content of Web TV.
5, its signal of exporting to television set is a progressive-scan signal, and display resolution improves greatly, satisfies the basic requirement of Web TV.
6, it can adjust the sound that different sources of sound are come, and realizes the mixing or the switching of sound.
7, can be directly and compunication, realize the exchanges data of television set and computer, and can be with the display of television set as computer.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 constitutes block diagram for the utility model circuit;
Fig. 3 is the utility model decoding processing partial circuit schematic diagram;
Fig. 4 is the utility model output circuit theory diagrams of lining by line scan;
Fig. 5 amplifies the drive part circuit theory diagrams for the utility model video;
Fig. 6 is the utility model control and treatment partial circuit schematic diagram;
Fig. 7 is the utility model storage area circuit theory diagrams;
Fig. 8 is the utility model telephone wire online partial circuit schematic diagram;
Fig. 9 is the utility model Ethernet online partial circuit schematic diagram;
Figure 10 is the utility model multitone source adjustment member circuit theory diagrams.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the utility model is the Web TV front end signal processing unit of one kind of multiple vision signal inputs, it comprises colour decoder, video processing circuits and audio frequency processing circuit, wherein Web TV front end signal processing unit and back end signal processing unit independently are provided with, and the front end signal processing unit is plugged in the slot of back end signal processing unit.
As shown in Figure 2, decoder is a digital decoder, and decoder video output connects progressive scan processor, and the progressive scan processor video output terminals is handled video interface (VGA, YpbPr) to the television set back end signal, and progressive scan processor also connects buffer.The progressive scan processor input also can connect the WD output.The decoder video input can be more than one, for example can be television tuner, composite video (CVBS), YC component video signal (S-VIDEO), RGB component video signal (RGB).Web TV front end signal processing unit comprises that also the hardware of online and data call control refers to modern processor, the vision signal output of this processor input termination decoder and the video output terminals of network interface processor connect the circuit of lining by line scan, audio output connects back end signal processing audio interface by diverter switch, and the port of processor connects memory and buffer.Have again, the vision signal output of processor input termination decoder, the video output terminals of processor and the video output terminals of decoder connect the television set back end signal by change over switch and handle video interface.Processor input termination radio receiver is so that carry out the control information transmission with remote controller.The network interface of processor is more than one, for example is the same interface of ether, telephone line interface and outside independent source of sound interface.
Referring to Fig. 3, be defeated A of signal of the present utility model and decoding processing partial circuit schematic diagram.Wherein input signal can pass through the TV-VIN interface signal, composite video signal CVBS inserts by interface J2 by interface J1 access, S-VIDEO signal, and Y PbPr signal inserts by interface J3, J4, J5, these TVs insert signal and input to decoding chip UI, and U2 exports television audio signals.The audio signal of television audio signals and network download is switched, is exported by circuit as shown in Figure 9.
Fig. 4 is the utility model output circuit theory diagrams of lining by line scan.After signal that TV and network are come switched, U21, U22 were the video output dip switch, and responsible switching is the picture-in-picture video signal of LS588 and the vision signal of decoder output as shown in Figure 5, exports to U3 NV221.Vision signal to television set transmission progressive-scan signal, makes television set have clear, stable shows signal by the processing of the chip U3 that lines by line scan, and this signal is through the processing of video amplifier circuit shown in Figure 5, to VGA, RGB output interface.Returned the communication interface J8 of this device and PC among Fig. 5, it with PC between be connected by the I2C bus form.
Figure 6 shows that the utility model online and hardware instruction processor controls partial circuit schematic diagram.Hardware management of the present utility model is born by LS588, also can central processing unit be set independently again and be responsible for finishing.It is connected to infrared remote receiver Q4 IR, and network interface AC97BUS on the telephone wire cooperates online chip U13LS588 shown in Figure 8 to enter the Internet.LS588 can be used as the CPU of whole device, management such as the data call of responsible each chip, transmission.Also establish the management that independent CPUs is responsible for handling each chip in addition at this device.Have, LS588 also carries out the resetting of other devices, switching etc. by control bus DGIBUS again, and a mouthful line VID BUS1,2 is respectively video input, output, and MEM mouth line connects memory, and AUD BUS is audio frequency output, the work of HOST BUS control network interface card.Fig. 7 is the flash memory storage partial circuit schematic diagram that is connect with processor LS588, the program that can store this device.
Online approach of the present utility model also can realize broadband access by ethernet nic U15 shown in Figure 8, interface J13 etc.Referring to Figure 10, for the mixing of multiple source of sound, quiet adjustment, for example Ka LaOK sound, when cooperating the network information, all undertaken by U19, U16, U17 is the source of sound diverter switch, and the signal that the voice signal that LS588 can be come and tuner are come is selected one and switched output.
Claims (11)
1, the Web TV front end signal processing unit of one kind of multiple vision signal inputs, it comprises colour decoder, video processing circuits and audio frequency processing circuit, it is characterized in that: described Web TV front end signal processing unit and back end signal processing unit independently are provided with, and the front end signal processing unit is plugged in the slot of back end signal processing unit.
2, the Web TV front end signal processing unit of various video signal input according to claim 1, it is characterized in that: described decoder is a digital decoder, decoder video output connects progressive scan processor, the progressive scan processor video output terminals is handled video interface to the television set back end signal, and progressive scan processor also connects buffer.
3, the Web TV front end signal processing unit of various video signal input according to claim 1, it is characterized in that: described progressive scan processor input also can connect the DVD output.
4, the Web TV front end signal processing unit of various video signal input according to claim 1, it is characterized in that: described decoder video input can be more than one.
5, the Web TV front end signal processing unit of various video signal input according to claim 4, it is characterized in that: described decoder video input is television tuner or composite video or YC component video signal or RGB component video signal.
6, the Web TV front end signal processing unit of various video signal input according to claim 3, it is characterized in that: described Web TV front end signal processing unit also comprises the hardware instruction processor of being responsible for online and data call control, the vision signal output of this processor input termination decoder and the video output terminals of network interface processor connect the circuit of lining by line scan, audio output connects back end signal processing audio interface by diverter switch, and the port of processor connects memory and buffer.
7, according to the Web TV front end signal processing unit of claim 3 or the input of 6 described various video signals, it is characterized in that: the vision signal output of described processor input termination decoder, the video output terminals of processor and the video output terminals of decoder connect the television set back end signal by change over switch and handle video interface.
8, the Web TV front end signal processing unit of various video signal input according to claim 6 is characterized in that: described processor input termination radio receiver.
9, the Web TV front end signal processing unit of various video signal input according to claim 6, it is characterized in that: the network interface of described processor is more than one.
10, the Web TV front end signal processing unit of various video signal input according to claim 9, it is characterized in that: the network of described processor connects and is Ethernet interface, telephone line interface.
11, the Web TV front end signal processing unit of various video signal input according to claim 6, it is characterized in that: the interface of described processor still is provided with outside independent source of sound interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233208 CN2496206Y (en) | 2001-08-13 | 2001-08-13 | Cable TV frond-end signal processing unit with multiple video signal inputs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233208 CN2496206Y (en) | 2001-08-13 | 2001-08-13 | Cable TV frond-end signal processing unit with multiple video signal inputs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2496206Y true CN2496206Y (en) | 2002-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01233208 Expired - Fee Related CN2496206Y (en) | 2001-08-13 | 2001-08-13 | Cable TV frond-end signal processing unit with multiple video signal inputs |
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| Country | Link |
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| CN (1) | CN2496206Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461854C (en) * | 2006-01-05 | 2009-02-11 | 中兴通讯股份有限公司 | IPTV service channelization method |
| CN102340652A (en) * | 2011-09-02 | 2012-02-01 | 杭州海康威视数字技术股份有限公司 | Network video control device and method |
-
2001
- 2001-08-13 CN CN 01233208 patent/CN2496206Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461854C (en) * | 2006-01-05 | 2009-02-11 | 中兴通讯股份有限公司 | IPTV service channelization method |
| CN102340652A (en) * | 2011-09-02 | 2012-02-01 | 杭州海康威视数字技术股份有限公司 | Network video control device and method |
| CN102340652B (en) * | 2011-09-02 | 2013-07-17 | 杭州海康威视数字技术股份有限公司 | Network video control device and method |
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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: 20020619 Termination date: 20090914 |