CN102097079B - Image displaying system and video switching equipment and method - Google Patents
Image displaying system and video switching equipment and method Download PDFInfo
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- CN102097079B CN102097079B CN 201010560229 CN201010560229A CN102097079B CN 102097079 B CN102097079 B CN 102097079B CN 201010560229 CN201010560229 CN 201010560229 CN 201010560229 A CN201010560229 A CN 201010560229A CN 102097079 B CN102097079 B CN 102097079B
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Abstract
The invention discloses an image displaying system and video switching equipment and method. The image displaying system comprises video outputting equipment, video switching equipment and video displaying equipment, wherein the video switching equipment is connected between the video outputting equipment and the video displaying equipment; the video switching equipment is used for acquiring EDID (Extended Display Identification Data) information of the video displaying equipment, comparing the EDID information of the video displaying equipment with the EDID information per se, selecting the EDID information identical to the EDID information of the video displaying equipment, and feeding back the EDID information identical to the EDID information of the video displaying equipment to the video outputting equipment. By applying the technical scheme, the shared EDID information of the video switching equipment and the video displaying equipment can be acquired by the video outputting equipment at the same time, and the image output per se is adjusted according to the shared EDID information, therefore, the output image can be supported by the video switching equipment and the video displaying equipment at the same time so as to further guarantee the normal display of the image.
Description
Technical field
The present invention relates to the image processing technique field, especially, relate in particular to a kind of image display system, video adapting Apparatus and method for.
Background technology
Image display system comprises: picture output device, video adapting equipment and video display apparatus.Picture output device by video adapting equipment, its image that provides is provided on video display apparatus and shows.Because the standard of video is various, the EDID of different video display device (Extended DisplayIdentification Data, the extending display identification data) information, for example: the video properties of the image size that can show, color characteristic, display timing generator is not identical; And the kind of the video image that picture output device is exported size, color characteristic, display timing generator is also limited, therefore, picture output device need to be according to the output of EDID information adjustment self image, guarantee that on video display apparatus, shown image reaches optimal display result, for example: video is clear, does not have video distortion etc.
At present, the EDID information of picture output device institute foundation has three kinds of sources: the one, and the EDID information of picture output device self; The 2nd, the EDID information of video adapting equipment; The 3rd, video adapting equipment reads the EDID information of video display apparatus, and this EDID information exchange is crossed DDC (Display Data Channel, display data passage) feeds back to picture output device.
But, existing picture output device can not obtain the EDID information of video adapting equipment and video display apparatus simultaneously, therefore cause the image that picture output device is exported to be supported simultaneously by video adapting equipment and video display apparatus, and then cause image normally to show.
Summary of the invention
In view of this, the invention provides a kind of image display system, video adapting Apparatus and method for, can not obtain simultaneously the EDID information of video adapting equipment and video display apparatus to solve existing picture output device, therefore cause the image that picture output device is exported not supported simultaneously by video adapting equipment and video display apparatus, and then the problem that causes image normally to show.The concrete scheme of a kind of image display system provided by the present invention, video adapting Apparatus and method for is as follows:
A kind of image display system, comprise: picture output device, video adapting equipment and video display apparatus, wherein, described video adapting equipment connection is between described picture output device and described video display apparatus, described video adapting equipment, be used for obtaining the extending display identification data EDID information of described video display apparatus, compare with the EDID information of self, choose the EDID information identical with described video display apparatus, simultaneously identical EDID information is fed back to described picture output device.
The present invention also provides a kind of video adapting equipment, comprising:
Deriving means is for the EDID information of obtaining video display apparatus;
The compare device who is connected with described deriving means is used for the EDID information of contrast self and the EDID information of the video display apparatus that described deriving means obtains;
The selecting device that is connected with described compare device is used for choosing identical EDID information, and described identical EDID information is the total EDID information of described video adapting equipment and described video display apparatus;
The feedback assembly that is connected with described selecting device is used for feeding back described identical EDID information to picture output device.
The present invention also provides a kind of EDID information processing method, comprising:
Obtain the EDID information of video display apparatus;
The EDID information of contrast video adapting equipment and the EDID information of video display apparatus are chosen EDID information identical in EDID information;
The request of reading identical EDID information that the receiver, video output device sends is fed back described identical EDID information to picture output device according to described request.
Use technique scheme, picture output device can get EDID information total in video adapting equipment and video display apparatus simultaneously, adjust the image output of self according to the EDID information that should have, therefore, the image of output is simultaneously by video adapting equipment and video display apparatus support, and then the normal demonstration of assurance image.Compared with prior art, solved the EDID information that prior art can't be obtained video adapting equipment and video display apparatus simultaneously, the problem that causes image normally to show.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that in image display system provided by the present invention, EDID information sends schematic diagram;
Fig. 2 is the structural representation of video adapting equipment provided by the present invention;
Fig. 3 is the another kind of structural representation of video adapting equipment provided by the present invention;
Fig. 4 is the process flow diagram of EDID information processing method provided by the present invention;
Fig. 5 is the another kind of process flow diagram of EDID information processing method provided by the present invention;
Fig. 6 is another process flow diagram of EDID information processing method provided by the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The applicant finds after deliberation, the EDID information that in image display system, video adapting equipment and video display apparatus self have is different, and picture output device can not obtain the EDID information of video adapting equipment and video display apparatus simultaneously, for example: what picture output device obtained is the EDID information of video adapting equipment, this video adapting equipment comprises: A, B, C and four kinds of EDID information of D, and its display effect increases progressively, and that is to say that the display effect of D is best.Picture output device reads the EDID information of video adapting equipment, chooses with the output characteristics of self to compare, and automatically adjusts the output of self.
Yet, if video display apparatus does not have the EDID information of D type, affect in video display apparatus and can't normally show.Equally, if the selected EDID information of picture output device is that video adapting equipment is not supported, cause so equally image normally to show.
In order to address the above problem, the embodiment of the present invention provides a kind of image display system, and this image display system comprises: picture output device, video adapting equipment and video display apparatus, wherein, described video adapting equipment connection is between described picture output device and described video display apparatus.
Video adapting equipment is used for obtaining the EDID information of described video display apparatus, compares with self EDID information, chooses the EDID information identical with described video display apparatus, simultaneously identical EDID information is fed back to described picture output device.Identical EDID information is stored in the EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM of video adapting equipment.
In the image display system that the embodiment of the present invention provides, between three equipment the transmission schematic diagram of EDID information is as shown in Figure 1, when equipment brings into operation, the request that the CPU feedback of video adapting equipment is obtained EDID information is to video display apparatus, and video display apparatus feeds back to video adapting equipment with the EDID information of self.The EDID information of the CPU contrast of video adapting equipment self and the EDID information of video display apparatus, choose EDID information identical in both EDID information, for example: video adapting equipment comprises: A, B, C and four kinds of EDID information of D, video display apparatus comprises: three kinds of EDID information of A, B and C, both have A, B and three kinds of identical EDID information of C.Because EDID information is stored in EEPROM, each EEPROM connects an equipment, writes identical EDID information so CPU this moment controls the read-write equipment that is connected with EEPROM, and can not read identical EDID information by picture output device.
When EDID information write complete after, the request of reading identical EDID information of video adapting equipment receiver, video output device feedback, CPU controls read-write equipment and reads identical EDID information, and by DDC, identical EDID information is fed back to picture output device.
Certainly, video adapting equipment is before feedback is obtained EDID information, can at first obtain the video display apparatus sign, this label table photopic vision is the model of display device frequently, and according to whether having the EDID information corresponding with this sign in this sign inquiry EEPROM, when having EDID information in EEPROM, feed back to picture output device, otherwise, carry out the EDID information of obtaining video display apparatus.Why like this operation, be that its EDID information is identical, and then has the EDID information identical with video adapting equipment, has improved the work efficiency of system because of the video display apparatus with like-identified.
It should be noted that: after the EDID of video display apparatus information updating, need again to obtain EDID information, and can not obtain identical EDID information from EEPROM, because variation has occured the EDID information of this moment.
Use technique scheme, picture output device can get EDID information total in video adapting equipment and video display apparatus simultaneously, adjust the image output of self according to the EDID information that should have, therefore, the image of output is simultaneously by video adapting equipment and video display apparatus support, and then the normal demonstration of assurance image.Compared with prior art, solved the EDID information that prior art can't be obtained video adapting equipment and video display apparatus simultaneously, the problem that causes image normally to show.In addition, after picture output device gets identical EDID information, according to the output characteristics of self, can choose display effect the best in EDID information, adjust the output of self, and then on the assurance video display apparatus, shown image reaches optimal display result, and for example: video is clear, does not have video distortion etc.
See also Fig. 2, the structural representation of the video adapting equipment that Fig. 2 provides for the embodiment of the present invention.This video adapting equipment comprises: deriving means 10, compare device 11, selecting device 13 and feedback assembly 14.Wherein:
Deriving means 10 is for the EDID information of obtaining video display apparatus;
The compare device 11, are used for the EDID information of contrast self and the EDID information of the video display apparatus that deriving means 10 obtains;
Selecting device 12 is used for choosing identical EDID information, and identical EDID information is the total EDID information of described video adapting equipment and described video display apparatus;
In addition, the another kind of structural representation of the video adapting equipment that provides of the embodiment of the present invention as shown in Figure 3.This video adapting equipment also comprises: the memory storage 14 that is connected with selecting device 12 is used for the selected identical EDID information of storage selecting device 12.Memory storage 14 is EEPROM.
Owing to having like-identified, it is the video display apparatus of identical unit type, its EDID information is also identical, and then also identical with the EDID information of same video adapting equipment, so in order to improve the work efficiency of video adapting equipment, video adapting equipment also comprises: sign deriving means 15, be used for obtaining the video display apparatus sign, and this label table photopic vision is the model of display device frequently.
With the EDID information query device 16 that sign deriving means 15 is connected, be used for whether having the EDID information corresponding with this sign according to sign inquiry memory storage 14, this EDID information is the video adapting equipment EDID information identical with video display apparatus.When having EDID information in memory storage 14, obtain EDID information and feed back to picture output device by feedback assembly 13.Otherwise, carry out by deriving means 10 the EDID information of obtaining video display apparatus.
It should be noted that: after the EDID of video display apparatus information updating, can not directly obtain identical EDID information from memory storage 14, because the EDID information of this moment changes, and then identical EDID information is wrong.Therefore, video adapting equipment also comprises: upgrade judgment means 17, be used for obtaining EDID information updating sign, whether this label table photopic vision EDID information of display device is frequently upgraded, and judges according to this sign whether the EDID information of video display apparatus is upgraded.When EDID information is upgraded, carry out by deriving means 10 the EDID information of obtaining video display apparatus, otherwise, carry out by deriving means 10 the EDID information of obtaining video display apparatus.
Use technique scheme, video adapting equipment chooses by the EDID information of contrast self and the EDID information of video display apparatus the EDID information that both have, and the EDID information that feedback has is to picture output device.Therefore, picture output device can obtain video adapting equipment and the total EDID information of video display apparatus, adjusts the image output of self according to this EDID, therefore, the image of output is simultaneously by video adapting equipment and video display apparatus support, and then the normal demonstration of assurance image.Compared with prior art, solved the EDID information that prior art can't be obtained video adapting equipment and video display apparatus simultaneously, the problem that causes image normally to show.In addition, video adapting equipment can also be by obtaining the video display apparatus sign, according to whether having the EDID information corresponding with this sign in sign inquiry memory storage 14, when having EDID information in memory storage 14, the EDID information exchange is crossed feedback assembly 13 and feed back to picture output device, improved the work efficiency of video adapting equipment.Simultaneously, after the EDID of video display apparatus information updating, video adapting equipment can also judge whether it upgrades, and then has guaranteed the accuracy of the identical EDID information fed back.
Fig. 4 is a kind of EDID information processing method that the embodiment of the present invention provides, and the method is used for the image display system that above-described embodiment provides, and the concrete steps of the method are as follows, comprising:
S101: the EDID information of obtaining video display apparatus;
S102: the EDID information of contrast video adapting equipment and the EDID information of video display apparatus, choose EDID information identical in EDID information;
S103: the request of reading identical EDID information that the receiver, video output device sends, feed back described identical EDID information to picture output device according to described request.
Use technique scheme, picture output device can obtain video adapting equipment and the total EDID information of video display apparatus, adjust the image output of self according to this EDID, therefore, the image of output is simultaneously by video adapting equipment and video display apparatus support, and then the normal demonstration of assurance image.Compared with prior art, solved the EDID information that prior art can't be obtained video adapting equipment and video display apparatus simultaneously, the problem that causes image normally to show.
In addition, the another kind of process flow diagram of the EDID disposal route that provides of the embodiment of the present invention as shown in Figure 5.
S201: obtain the sign of video display apparatus, this label table photopic vision is the model of display device frequently;
S202: according to described sign, whether have the EDID information corresponding with this sign in inquiry video adapting equipment, this EDID information is the video adapting equipment EDID information identical with video display apparatus; If so, carry out S203, otherwise carry out S204;
S203: obtain identical EDID information, continue to carry out S206;
S204: the EDID information of obtaining video display apparatus;
S205: the EDID information of contrast video adapting equipment and the EDID information of video display apparatus, choose EDID information identical in EDID information;
S206: the request of reading identical EDID information that the receiver, video output device sends, feed back described identical EDID information to picture output device according to described request.
Use technique scheme, when providing the video adapting equipment EDID information identical with video display apparatus to picture output device, further improved the work efficiency of video adapting equipment.
But, when the EDID of the video display apparatus with like-identified information updating, adopt method shown in Figure 5 can cause the identical EDID information errors that feeds back, therefore in order to guarantee accuracy, need also to judge whether EDID information changes.See also Fig. 6, Fig. 6 is another process flow diagram of the EDID information processing method that provides of the embodiment of the present invention.
S301: obtain the sign of video display apparatus, this label table photopic vision is the model of display device frequently;
S302: according to described sign, whether have the EDID information corresponding with this sign in inquiry video adapting equipment, this EDID information is the video adapting equipment EDID information identical with video display apparatus; If so, carry out S303, otherwise carry out S306;
S303: obtain EDID information updating sign, whether this label table photopic vision EDID information of display device is frequently upgraded;
S304: whether the EDID information that judges video display apparatus according to this sign is upgraded; If not, carry out S305, otherwise carry out S306;
S305: obtain identical EDID information, continue to carry out 308;
S306: the EDID information of obtaining video display apparatus;
S307: the EDID information of contrast video adapting equipment and the EDID information of video display apparatus, choose EDID information identical in EDID information;
S308: the request of reading identical EDID information that the receiver, video output device sends, feed back described identical EDID information to picture output device according to described request.
Use technique scheme, guarantee the accuracy of the identical EDID information of feedback.
Illustrate: Fig. 4, is stored in identical EDID information in video adapting equipment after the identical EDID information of feedback is to picture output device to three kinds of EDID information updating methods shown in Figure 6, is convenient to inquiry.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.For the disclosed device of embodiment, because it is corresponding with the disclosed method of embodiment, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The professional can also further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or combination both, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps both combination is implemented.Software module can be placed in the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. image display system comprises: picture output device, and video adapting equipment and video display apparatus, wherein, described video adapting equipment connection is characterized in that between described picture output device and described video display apparatus:
Described video adapting equipment, be used for obtaining the extending display identification data EDID information of described video display apparatus, compare with the EDID information of self, choose the EDID information identical with described video display apparatus, simultaneously identical EDID information is fed back to described picture output device, described identical EDID information is the total EDID information of described video adapting equipment and described video display apparatus.
2. image display system according to claim 1, is characterized in that, described identical EDID information is stored in EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM.
3. image display system according to claim 1, is characterized in that, described identical EDID information exchange is crossed display data passage DDC and fed back to described picture output device.
4. a video adapting equipment, is characterized in that, comprising:
Deriving means is for the EDID information of obtaining video display apparatus;
The compare device who is connected with described deriving means is used for the EDID information of contrast self and the EDID information of the video display apparatus that described deriving means obtains;
The selecting device that is connected with described compare device is used for choosing identical EDID information, and described identical EDID information is the total EDID information of described video adapting equipment and described video display apparatus;
The feedback assembly that is connected with described selecting device is used for feeding back described identical EDID information to picture output device.
5. video adapting equipment according to claim 4, is characterized in that, also comprises: the memory storage that is connected with described selecting device is used for storing the selected identical EDID information of described selecting device.
6. video adapting equipment according to claim 5, is characterized in that, described memory storage is EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM.
7. video adapting equipment according to claim 5, is characterized in that, also comprises: the sign deriving means, be used for obtaining the video display apparatus sign, and this label table photopic vision is the model of display device frequently;
The EDID information query device that is connected with described sign deriving means, be used for the inquiry memory storage and whether have the corresponding EDID information of sign of obtaining with this described sign deriving means, this EDID information is the video adapting equipment EDID information identical with video display apparatus.
8. video adapting equipment according to claim 7, is characterized in that, also comprises:
Upgrade judgment means, be used for obtaining the EDID information updating sign whether the EDID information that shows video display apparatus is upgraded.
9. an EDID information processing method, is characterized in that, comprising:
Obtain the EDID information of video display apparatus;
The EDID information of contrast video adapting equipment and the EDID information of video display apparatus are chosen EDID information identical in EDID information, and described identical EDID information is the total EDID information of described video adapting equipment and described video display apparatus;
The request of reading identical EDID information that the receiver, video output device sends is fed back described identical EDID information to picture output device according to described request.
10. EDID information processing method according to claim 9, is characterized in that, the EDID information of obtaining video display apparatus also comprises before:
Obtain the sign of video display apparatus, this label table photopic vision is the model of display device frequently;
According to described sign, whether have the EDID information corresponding with this sign in inquiry video adapting equipment, this EDID information is the video adapting equipment EDID information identical with video display apparatus; If so, carry out and obtain EDID information updating sign, whether this label table photopic vision EDID information of display device is frequently upgraded, otherwise carries out the EDID information of obtaining video display apparatus;
Whether the EDID information that judges video display apparatus according to this sign is upgraded; If not, carry out the identical EDID information of obtaining, otherwise carry out the EDID information of obtaining video display apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010560229 CN102097079B (en) | 2010-11-25 | 2010-11-25 | Image displaying system and video switching equipment and method |
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| CN 201010560229 CN102097079B (en) | 2010-11-25 | 2010-11-25 | Image displaying system and video switching equipment and method |
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| CN102097079A CN102097079A (en) | 2011-06-15 |
| CN102097079B true CN102097079B (en) | 2013-05-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420966A (en) * | 2011-11-24 | 2012-04-18 | 中兴通讯股份有限公司 | Conference television video output EDID (Extended Display Identification Data) processing method and system |
| CN103870222B (en) * | 2012-12-11 | 2018-06-01 | 联想(北京)有限公司 | A kind of display output control method and electronic equipment |
| CN105892963A (en) * | 2015-11-26 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Method for generating extended display identification data EDID and display device |
| CN108293149B (en) * | 2015-12-25 | 2020-05-19 | 麦克赛尔株式会社 | Image display device |
| CN107026996B (en) * | 2017-04-13 | 2018-08-14 | 西安万像电子科技有限公司 | The transmission method of data, device and system |
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| CN101840692A (en) * | 2010-05-24 | 2010-09-22 | 苏州佳世达光电有限公司 | Display system capable of updating and extending display identification code and method thereof |
| CN101883236A (en) * | 2010-07-14 | 2010-11-10 | 深圳市高斯贝尔家居智能电子有限公司 | High-definition signal wireless transmission system and method |
| CN101894519A (en) * | 2010-07-07 | 2010-11-24 | 深圳超多维光电子有限公司 | Data conversion device, data conversion method and data conversion system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840692A (en) * | 2010-05-24 | 2010-09-22 | 苏州佳世达光电有限公司 | Display system capable of updating and extending display identification code and method thereof |
| CN101894519A (en) * | 2010-07-07 | 2010-11-24 | 深圳超多维光电子有限公司 | Data conversion device, data conversion method and data conversion system |
| CN101883236A (en) * | 2010-07-14 | 2010-11-10 | 深圳市高斯贝尔家居智能电子有限公司 | High-definition signal wireless transmission system and method |
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