CN201066886Y - Digital compatible board - Google Patents
Digital compatible board Download PDFInfo
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- CN201066886Y CN201066886Y CNU2007200261223U CN200720026122U CN201066886Y CN 201066886 Y CN201066886 Y CN 201066886Y CN U2007200261223 U CNU2007200261223 U CN U2007200261223U CN 200720026122 U CN200720026122 U CN 200720026122U CN 201066886 Y CN201066886 Y CN 201066886Y
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- 238000004088 simulation Methods 0.000 description 5
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Abstract
The utility model discloses a digital compatibility plate, which is provided with a color difference signal terminal, a standard VGA signal terminal and an audio signal terminal. The audio signal terminal comprises a left sound channel input pin, a right sound channel input pin, a left sound channel output pin and a right sound channel output pin. Selection connection parts are respectively connected between the left sound channel input pin and the right sound channel input pin and between the left sound channel output pin and the right sound channel output pin. The digital compatibility plate is provided with a VGA compatibility interface which is connected with a bottom plate cassette that is provided with the standard VGA signal terminal. VGA signals which are input by the bottom plate cassette are transmitted to the digital compatibility plate. The digital compatibility plate can be compatible with typesetting schemes of television cassette circuits of different sizes, which greatly improves the generality of printed plates, complies with the standardized design requirement, reduces unnecessary repeated typesetting works and effectively improves the development efficiency of television products.
Description
Technical field
The utility model belongs to the signal processing circuit technical field, specifically, relate to a kind of can be general the digital compatible board design that the high definition that receives or VGA signal are handled on different Core of TV set plates.
Background technology
Along with increasingly sharpening of competing between each producer on the market, add the continuous development of flat panel products, make the difference in selling prices between flat board and the large-screen CRT product more and more littler, so high definition CRT product is faced with very huge cost pressure.Though and common simulation CRT product price is lower, owing to do not possess the advanced function of signals such as can receiving high definition, VGA, market orientation can't promote.In the middle of the two location, there is a vacuum tomography.Therefore, each TV manufacturer also constantly takes measures on this problem, has successively released 15K high definition scheme.
15K high definition scheme is promptly by increasing a digital processing plate on the common simulation movement, high definition and VGA signal are inserted through YPBPR terminal and 15 pin VGA terminals respectively, input signal carries out the A/D conversion after selection, separated in synchronization, according to synchronous judgement signal mode, all signals that are higher than the 15K line frequency are done the down conversion processing, and output has the 480i/576i YCBCR signal of capable field synchronization.
Because 29 cun and 21 cun simulated television movements exist than big-difference between physical dimension and different decoding CPU, if all design the digital processing plate interface separately at each common simulation movement base plate, workload will be very huge, and be unfavorable for the unified planning and the management of product, more be unfavorable for follow-up other different schemes 15K high definition Products Development.
Based on this, unnecessary repeating set type and the manpower waste in order to reduce, and need carry out the compatibility design to typeset and print system circuit board, makes the Core of TV set scheme of the compatible different size of its energy.
The utility model content
The utility model provides a kind of new Digital compatible board composing design in order to solve the existing problem that digital processing plate versatility is poor, development efficiency is low, can compatible different size Core of TV set circuit, improved the versatility of printed board greatly.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of digital compatible board, it is provided with color difference signal terminal, standard VGA signal terminal and audio signal terminal, includes L channel input pin, R channel input pin and L channel output pin, R channel output pin in described audio signal terminal; Wherein, be connected with a selection connecting portion between described L channel input pin and the R channel input pin and between L channel output pin and the R channel output pin respectively.
Wherein, described selection connecting portion can be two pads or welding hole, and one connects described L channel input pin or L channel output pin; Another correspondingly connects described R channel input pin or R channel output pin, and selects welding to be communicated with device between described two pads or welding hole as required.Such as when using in 21 cun Core of TV set circuit, need on described selection connecting portion, weld the connection device, make L channel input pin and R channel input pin short circuit; L channel output pin and R channel output pin short circuit are realized the I/O function of monophony audio signal with this; And when being used, then do not need to connect described connection device with 29 cun Core of TV set plates, guarantee the accurate transmission of dual track audio signal with this.In addition, described selection connecting portion can also adopt gating switch to realize that an end connects described L channel input pin or L channel output pin; The other end correspondingly connects described R channel input pin or R channel output pin, selects to be communicated with described gating switch according to the concrete needs of machine core board, to satisfy the input requirement of different cassette mechanism plate to audio signal.
Further, described color difference signal terminal and audio signal terminal are included in the standard multitube pin interface, connect mainboard by described multitube pin interface.
Wherein, described multitube pin interface can adopt standard 20 needle interfaces to realize, comprises color difference signal input pin, color difference signal output pin, bus clock pin, bus data pin, power pin, reseting pin, ground pin and described L channel input pin, R channel input pin, L channel output pin, R channel output pin.
Further again, in order to mate the configuration requirement of different television set base plate movements to the VGA terminal, on described digital compatible board, also be provided with a VGA compatibility interface, be connected with the base plate movement of standard VGA signal terminal, will transfer to described digital compatible board by the VGA signal of base plate movement input.
Wherein, described VGA compatibility interface is standard 6 needle interfaces, comprises R, G, B signal input tube pin, line synchronizing signal input pin, field sync signal input pin and ground pin.
Further, on described digital compatible board, also be provided with input signal is selected, the signal processing circuit of processing and analog to digital conversion, its input receives respectively from the color difference signal terminal, the bright signal or the rgb signal of standard VGA signal terminal or the input of VGA compatibility interface, it is selected, separated in synchronization, after down conversion processing and the analog-to-digital conversion, generation has the digital difference signal YCBCR of capable field synchronization, transfer to TV SKD by described multitube pin interface, make existing common simulation TV set high definition and VGA signal receive playing function.
Compared with prior art, advantage of the present utility model and good effect are: the composing scheme that digital compatible board of the present utility model can compatible different size TV movement circuit, improved the versatility of printed board greatly, the conformance with standard designing requirement, reduced the unnecessary composing work that repeats, effectively improved the development efficiency of tv product, made and adopt the tv product of this circuit in market, to have stronger competitiveness.
After reading the detailed description of the utility model execution mode in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the structural representation of an execution mode of the digital compatible board that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present utility model is described in detail.
The utility model is more single in order to solve existing TV digital disposable plates circuit configuration, the problem of poor compatibility, a kind of novel compatibility interface definition mode has been proposed, to reach the purpose of under different situations, selecting different cassette mechanism plate circuit, effectively improve the versatility of circuit board, reduced the unnecessary duplication of labour.
At 15K high definition scheme, compare with 21 cun common TV movements, 29 cun common movements are removed beyond the physical dimension, and major different is stereo (Stereo) system with left and right acoustic channels, and is not monophony (Mono) system of common 21 cun movements.
Based on this, in digital compatible board Interface design scheme of the present utility model, the audio signal terminal has been carried out particular design, make it can satisfy of the input requirement of different cassette mechanism plate simultaneously, referring to shown in Figure 1 to audio signal.For simplifying digital compatible board interface structure, making things convenient for digital compatible board to be connected communication with mainboard, described audio signal terminal concentrates design in a standard 20 needle interface XS101 with YPBPR color difference signal terminal, video signal output terminal together, plug with TV SKD or lead is connected by described interface XS101, to realize the transport communication of audio-video signal between digital compatible board and the mainboard.Certainly, described audio signal terminal, YPBPR color difference signal terminal and video signal output terminal also can be distinguished independent setting, and the utility model does not specifically limit this.
In described interface XS101, remove the necessary power supply of digital compatible board work, reset, clock, data, brightness, colourity, etc. beyond the pin, also be provided with a left side/monophony input pin, R channel input pin, a left side/monophony output pin and R channel output pin; Being defined as follows shown in the table of its each pin:
Wherein, the defined declaration of each pin is:
1, PR_IN:PR signal input;
2, V_IN:V signal input;
3, GND_AVIN:AV input ground;
4, L1/MONO_IN a: left side/monophony input;
5, R1_IN: R channel input;
6, V_OUT:V signal output;
7, RESET: reset;
8, CR_OUT:CR signal output;
9, CB_OUT:CB signal output;
10, Y_OUT:Y signal output;
11, SCL: bus clock;
12, SDA: bus data;
13, GND_5V:5V ground;
14,5V: digital compatible board power supply 5V;
15, SW_4053:HEF4053 switch;
16, R_OUT: R channel output;
17, L/MONO_OUT a: left side/monophony output;
18, GND_AVOUT:AV output ground;
19, Y_IN:Y signal input;
20, PB_IN:PB signal input.
In order to satisfy of the input requirement of different cassette mechanism plate, between a left side/monophony input pin 4 of described interface XS101 and R channel input pin 5, be connected with one and select connecting portion X1 audio signal; Between a left side/monophony output pin 17 and R channel output pin 16, be connected with another and select connecting portion X2.Described selection connecting portion X1, X2 can be two pads or welding hole, and as shown in Figure 1, one connects a left side/monophony input pin 4 or a left side/monophony output pin 17; Another correspondingly connects R channel input pin 5 or R channel output pin 16, and selects welding to be communicated with device according to the machine core board actual needs between described two pads or welding hole.Described connection device can be resistance device, capacitor element or plain conductor etc.When the base plate movement adopts 21 cun common movements, by being communicated with device R channel input pin 5, R channel output pin 16 are connected with a left side/monophony input pin 4, a left side/monophony output pin 17 respectively, make R channel input pin 5 and R channel output pin 16 not possess standalone feature, satisfy the I/O function of monophony audio signal.And when the base plate movement adopts 29 cun common movements, disconnect described gating device, make left and right sound channels possess input, output function simultaneously, to satisfy the transmission requirement of dual track audio signal.
In addition, described selection connecting portion X1, X2 also can adopt two gating switches to realize that one is connected between a left side/monophony input pin 4 and the R channel input pin 5; Another is connected between a left side/monophony output pin 17 and the R channel output pin 16, selects to be communicated with described gating switch according to the concrete needs of machine core board, to satisfy the input requirement of different cassette mechanism plate to audio signal.Described gating switch can adopt jumper wire device to realize.
Certainly, described selection connecting portion X1, X2 also can adopt other implemented in many forms, and the utility model is not limited in above-mentioned giving an example.
In addition, because the physical dimension difference, 21 cun common movements and 29 cun common movements are after increasing 15K high definition scheme, and the arrangement mode of VGA terminal may be different.For 21 cun 15K high definition movements, generally take the VGA terminal is arranged on the digital compatible board, directly be positioned on the back terminal board of television set; And for 29 cun 15K high definition movements, then the same with the HDTV (High-Definition Television) movement, the VGA terminal is arranged on the base plate movement.At above problem, the utility model outside the grafting requirement of satisfying 21 cun 15K high definition movements, also is provided with one 6 pin VGA compatibility interface XS102 except the 15 pin VGA signal terminal XS103 that set up standard especially on digital compatible board, as shown in Figure 1, specifically being defined as of its each pin:
1, B:VGA B signal input;
2, G:VGA G signal input;
3, R:VGA R signal input;
4, VGA_GND:VGA ground;
5, VGA_H:VGA line synchronizing signal input;
6, VGA_V:VGA field sync signal input.
Like this,,, the VGA signal can be input on the digital compatible board of 15K high definition, reach the purpose of signal processing by plugging with VGA compatibility interface XS102 being provided with one 6 core socket of need increase on 29 cun common movements of standard VGA signal terminal.
The same with existing digital processing plate, on digital compatible board of the present utility model, equally also be provided with to input signal select, the signal processing circuit of processing and analog to digital conversion, its bus terminal connects I
2The C bus, 11,12 pin and TV SKD by interface XS101 are carried out data communication, receive the outside source selection signal that the user sends, and then corresponding one road YPBPR signal of gating or the input of VGA signal, and to its select, separated in synchronization, down conversion handle and analog-to-digital conversion process after, generation has the digital difference signal YCBCR of capable field synchronization, and the color difference signal output pin 8,9,10 by interface XS101 is to the TV SKD outputting video signal; Simultaneously, monophony that receives or dual track audio signal are after the sound treatment circuit on the digital compatible board is handled, audio signal output pin one 6,17 by interface XS101 exports mainboard to, thereby makes existing common simulation TV set high definition and VGA signal receive playing function.
In existing TV set circuit, the digital processing plate only adopts wherein a certain circuit at the demand of this television set, if demand changes, then sets type again to satisfy new requirement.Digital compatible board of the present utility model then takes one thing with another comprehensively, make compatible composing design, thereby improved the versatility of printed board to greatest extent, reduced the work that repeats unnecessary in the subsequent development process, improved the development efficiency of tv product.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (10)
1. digital compatible board, it is characterized in that: described digital compatible board is provided with color difference signal terminal, standard VGA signal terminal and audio signal terminal, includes L channel input pin, R channel input pin and L channel output pin, R channel output pin in described audio signal terminal; Wherein, be connected with a selection connecting portion between described L channel input pin and the R channel input pin and between L channel output pin and the R channel output pin respectively.
2. digital compatible board according to claim 1 is characterized in that: described selection connecting portion is two pads or welding hole, and one connects described L channel input pin or L channel output pin; Another correspondingly connects described R channel input pin or R channel output pin.
3. digital compatible board according to claim 2 is characterized in that: select welding to be communicated with device between described two pads or welding hole as required.
4. digital compatible board according to claim 1 is characterized in that: described selection connecting portion is a gating switch, and an end connects described L channel input pin or L channel output pin; The other end correspondingly connects described R channel input pin or R channel output pin.
5. digital compatible board according to claim 1 is characterized in that: described color difference signal terminal and audio signal terminal are included in the standard multitube pin interface, connect mainboard by described multitube pin interface.
6. digital compatible board according to claim 5 is characterized in that: include color difference signal input pin, color difference signal output pin, bus clock pin, bus data pin, power pin, reseting pin, ground pin and described L channel input pin, R channel input pin, L channel output pin, R channel output pin in described multitube pin interface.
7. digital compatible board according to claim 6 is characterized in that: described multitube pin interface is standard 20 needle interfaces.
8. according to each described digital compatible board in the claim 1 to 7, it is characterized in that: on described digital compatible board, also be provided with a VGA compatibility interface, be connected with the base plate movement of standard VGA signal terminal, will transfer to described digital compatible board by the VGA signal of base plate movement input.
9. digital compatible board according to claim 8 is characterized in that: described VGA compatibility interface is standard 6 needle interfaces, comprises R, G, B signal input tube pin, line synchronizing signal input pin, field sync signal input pin and ground pin.
10. digital compatible board according to claim 8 is characterized in that: on described digital compatible board, also be provided with to input signal select, the signal processing circuit of processing and analog to digital conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200261223U CN201066886Y (en) | 2007-08-01 | 2007-08-01 | Digital compatible board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200261223U CN201066886Y (en) | 2007-08-01 | 2007-08-01 | Digital compatible board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066886Y true CN201066886Y (en) | 2008-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200261223U Expired - Fee Related CN201066886Y (en) | 2007-08-01 | 2007-08-01 | Digital compatible board |
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| Country | Link |
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| CN (1) | CN201066886Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895701A (en) * | 2010-07-07 | 2010-11-24 | 深圳创维－Rgb电子有限公司 | Device for realizing software compatibility of functional module on different TV platforms |
-
2007
- 2007-08-01 CN CNU2007200261223U patent/CN201066886Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895701A (en) * | 2010-07-07 | 2010-11-24 | 深圳创维－Rgb电子有限公司 | Device for realizing software compatibility of functional module on different TV platforms |
| CN101895701B (en) * | 2010-07-07 | 2014-08-27 | 深圳创维－Rgb电子有限公司 | Device for realizing software compatibility of functional module on different TV platforms |
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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: 20080528 Termination date: 20110801 |