CN2496203Y - Video signal processing apparatus with multiple video signal inputs and one video signal output - Google Patents
Video signal processing apparatus with multiple video signal inputs and one video signal output Download PDFInfo
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- CN2496203Y CN2496203Y CN 01233209 CN01233209U CN2496203Y CN 2496203 Y CN2496203 Y CN 2496203Y CN 01233209 CN01233209 CN 01233209 CN 01233209 U CN01233209 U CN 01233209U CN 2496203 Y CN2496203 Y CN 2496203Y
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Abstract
The utility model relates to a television signal processing device with a variety of video signal inputs and a video signal output, wherein a front terminal signal processing device and a rear terminal signal processing device of the 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 sync separation signal choice switching device, the output terminal of which is connected with a display driving device of the rear terminal signal processing device, the line-by-line scanning processor is also connected with a memorizer, and a central processor CPU port line is connected with the controlling terminal of each device through controlling the bus line. The decoder video output terminal is provided with a plurality of input interfaces, such as a television high band, a composite video frequency, an interlacing brightness chromaticity component video signal as well as a video signal. The utility model has various video signal inputs and a line-by-line scanning signal output, the rear terminal signal processing part can be taken as a bottom board, and the front terminal signal processing part can be assembled and disassembled on the bottom plate conveniently.
Description
Technical field
The utility model relates to a kind of control device of television set front end signal, and especially a kind of have the input of multiple television video frequency signal and export a kind of vision signal and have the television headend signal processing apparatus of progressive-scan signal output.
Background technology
Along with video technique and development of internet technology, and the popularizing of multimedia technology application, people's recreation is more and more abundanter.
But because the restriction of television set body, television set has only a kind of video reception interface, maybe can only handle a kind of specific video signal, and different vision signals is not had common processing unit, has limited the flexibility that television set uses so to a great extent.For example, existing television set can only connect the tuner signal, can not connect composite video, separating video, does not promptly have the various video signal input interface; There is not conversion equipment can make television set accept different vision signals yet.
In addition, the TV set circuit device 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, separated in synchronization is handled; The display driver after the rear end is responsible for vision signal and is handled and the processing and amplifying of sound.Usually the design of front end signal processing section and back end signal processing section that is to say front end signal processing section and back end signal processing section as one on the circuit board of an integral body, and physical connection is fixed.Because the relative fixed of devices such as display and audio amplifier, parts such as the display driver of back end signal processing section and sound amplification immobilize with fixing device.On the other hand, because the source of television signal is more and more, and has nothing in common with each other, people have nothing in common with each other for the front end signal processing requirements, and the front end signal processing section of television set needs various function like this, should change easily.If 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, just can meet personalized demands such as the manufacturing.
Have, existing television set is generally interlaced data and shows that its display precision is lower, can not satisfy the demand of normally watching again.
Summary of the invention
Main purpose of the present utility model is to provide one kind of multiple vision signals to import a kind of video signal processing apparatus of vision signal output, it has the various video interface, concrete central controller independently, can become a kind of vision signal output with different vision signals through same conversion.
Another purpose of the present utility model is to provide one kind of multiple vision signals to import a kind of video signal processing apparatus of vision signal output, 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 be installed easily, be dismantled.
Another purpose of the present utility model is to provide one kind of multiple vision signals to import a kind of video signal processing apparatus of vision signal output, and the signal that it exports to television set is a progressive-scan signal.
The purpose of this utility model is achieved in that
One kind of multiple vision signals are imported a kind of video signal processing apparatus of vision signal output, it comprises the front end signal processing unit of colour decoder, video processing circuits formation and the back end signal processing unit that display drive apparatus constitutes, wherein said television headend signal processing apparatus 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, decoder video output connects progressive scan processor, progressive scan processor output to synchronizing signal separation is selected switching device shifter, synchronizing signal separation is selected the display drive apparatus of switching device shifter output termination back end signal processing unit, progressive scan processor also connects memory, and central processor CPU mouth line connects the control end that decoder, progressive scan processor and synchronizing signal separation are selected switching device shifter by control bus.
Described decoder video input can be more than one, can be television tuner, composite video, interlacing YC component video signal, vision signal.
Described synchronizing signal separation selects the switching device shifter input to connect YC component video signal, row field signal, the RGB color component vision signal of row.
Particularly, described synchronizing signal separation is selected switching device shifter to comprise separated in synchronization module, signal gain and selection module and is comprised the signal handover module and synchronous handover module.
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 back end signal processing section is as base plate, the front end signal processing section can be installed easily, be dismantled thereon, so 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.
3, have the input of various video signal, insert the possibility of selection for the user provides the various video signal, the adaptation of product strengthens greatly.
4, the cost of product reduces.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 constitutes block diagram for a kind of embodiment of the utility model circuit;
Fig. 3 is the utility model CPU control section circuit theory diagrams;
Fig. 4 is the utility model decoding processing partial circuit schematic diagram;
Fig. 5 is the utility model importation circuit theory diagrams of lining by line scan;
Fig. 6 is the current scanning of the utility model output circuit theory diagrams;
Fig. 7 is the utility model separated in synchronization and signal switching part circuit theory diagrams;
Fig. 8 is the utility model interface and display driver and sweep test 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 imported a kind of video signal processing apparatus of vision signal output for one kind of multiple vision signals, it comprises the front end signal processing unit of colour decoder, video processing circuits formation and the back end signal processing unit that display drive apparatus constitutes, wherein television headend signal processing apparatus 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.
Fig. 2 is that circuit of the present utility model constitutes block diagram.Decoder of the present utility model is a digital decoder.The decoder video input is television tuner, composite video CVBS or interlacing YC component video signal YCbCr.Decoder video output connects progressive scan processor, progressive scan processor output to synchronizing signal separation is selected switching device shifter, synchronizing signal separation is selected the display drive apparatus of switching device shifter output termination back end signal processing unit, progressive scan processor also connects memory, and central processor CPU mouth line connects the control end that decoder, progressive scan processor and synchronizing signal separation are selected switching device shifter by control bus.The decoder video input connects television tuner, composite video, interlacing YC component video signal, vision signal input.
Synchronizing signal separation selects the switching device shifter input to connect YC component video signal, row field signal, the RGB color component vision signal of row.
Particularly, synchronizing signal separation is selected switching device shifter to comprise separated in synchronization module, signal gain and selection module and is comprised the signal handover module and synchronous handover module.
As shown in Figure 3, the cpu port input connects keyboard to set up etc., and it is by the action of each module of this device of control port SCL, SDA management control.
Fig. 4 has provided the utility model decoding processing partial circuit structure, wherein UN8 is the colorful digital decoder, its input termination video signal VIDEO, composite video signal CVBS and interlacing RGB vision signal YCbCr, decoder UN8 is with these decoding video signals, transfer digital signal to, export to the follower NV221 that lines by line scan among Fig. 5,6, the processing of lining by line scan of this module receiving video signals, with signal output and to separated in synchronization and signal handover module, this module is made up of UN10, UN03, UN06, as shown in Figure 7.This module is incited somebody to action other vision signals line by line, for example, RGB component video signal YPbPr line by line or from row field signal HS, the VS of PC, carry out separated in synchronization, pass through hand-off process at last, export a kind of vision signal RGB component signal, a simultaneously also exportable row drive signal is given CRT monitor.Amplify through the driving of triode QN1, QN2, QN3, QN5 referring to the vision signal YPbPr among Fig. 8, input to the port of UM1, the Rout of UM1, Gout, Boutt RGB output signal to the terminal of output slot JN1, and the synchronized signal of UM2 output row H, V is by the terminal output of output slot JN3.Pass through said apparatus, finished the conversion of the input of various video signal, the output of a kind of progressive-scan video signal, for television set provides general apparatus for processing of video signals, make the production of television set can adapt to multiple use occasion more, reduce the cost of production and logistics management, improved the versatility of product.
Claims (7)
1, one kind of multiple vision signals are imported a kind of video signal processing apparatus of vision signal output, it comprises the front end signal processing unit of colour decoder, video processing circuits formation and the back end signal processing unit that display drive apparatus constitutes, it is characterized in that: described television headend signal processing apparatus 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, various video signal according to claim 1 is imported a kind of video signal processing apparatus of vision signal output, it is characterized in that: described decoder is a digital decoder, decoder video output connects progressive scan processor, progressive scan processor output to synchronizing signal separation is selected switching device shifter, synchronizing signal separation is selected the display drive apparatus of switching device shifter output termination back end signal processing unit, progressive scan processor also connects memory, and central processor CPU mouth line connects decoder by control bus, progressive scan processor and synchronizing signal separation are selected the control end of switching device shifter.
3, various video signal according to claim 1 is imported a kind of video signal processing apparatus of vision signal output, and it is characterized in that: described decoder video input can be more than one.
4, various video signal according to claim 3 is imported a kind of video signal processing apparatus of vision signal output, and it is characterized in that: described decoder video input is television tuner or composite video or interlacing YC component video signal or vision signal.
5, various video signal according to claim 2 is imported a kind of video signal processing apparatus of vision signal output, it is characterized in that: described synchronizing signal separation is selected switching device shifter input termination YC component video signal or row field signal or RGB color component vision signal line by line.
6, import the video signal processing apparatus that a kind of vision signal is exported according to claim 2 or 5 described various video signals, it is characterized in that: described synchronizing signal separation selects switching device shifter to comprise separated in synchronization module, signal gain and selection module.
7, various video signal according to claim 6 is imported a kind of video signal processing apparatus of vision signal output, it is characterized in that: described synchronizing signal separation selects switching device shifter also to comprise signal handover module and synchronous handover module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233209 CN2496203Y (en) | 2001-08-13 | 2001-08-13 | Video signal processing apparatus with multiple video signal inputs and one video signal output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233209 CN2496203Y (en) | 2001-08-13 | 2001-08-13 | Video signal processing apparatus with multiple video signal inputs and one video signal output |
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| Publication Number | Publication Date |
|---|---|
| CN2496203Y true CN2496203Y (en) | 2002-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01233209 Expired - Fee Related CN2496203Y (en) | 2001-08-13 | 2001-08-13 | Video signal processing apparatus with multiple video signal inputs and one video signal output |
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| Country | Link |
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| CN (1) | CN2496203Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327714C (en) * | 2004-01-17 | 2007-07-18 | 深圳创维－Rgb电子有限公司 | Inputting channel of line-by-line/intelaced video frequency signal sharing and method thereof |
| CN101651790A (en) * | 2008-08-15 | 2010-02-17 | 康佳集团股份有限公司 | TV, and device and method for indicating TV signal intensity |
-
2001
- 2001-08-13 CN CN 01233209 patent/CN2496203Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327714C (en) * | 2004-01-17 | 2007-07-18 | 深圳创维－Rgb电子有限公司 | Inputting channel of line-by-line/intelaced video frequency signal sharing and method thereof |
| CN101651790A (en) * | 2008-08-15 | 2010-02-17 | 康佳集团股份有限公司 | TV, and device and method for indicating TV signal intensity |
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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 |