CN102097079A - 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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- CN102097079A CN102097079A CN 201010560229 CN201010560229A CN102097079A CN 102097079 A CN102097079 A CN 102097079A CN 201010560229 CN201010560229 CN 201010560229 CN 201010560229 A CN201010560229 A CN 201010560229A CN 102097079 A CN102097079 A CN 102097079A
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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 the 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 all inequality; And the kind of the video image size that picture output device is exported, color characteristic, display timing generator also is limited, therefore, picture output device need be according to the output of EDID information adjustment self image, guarantee that shown image reaches optimal display result on the video display apparatus, 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 is fed back to picture output device by DDC (Display Data Channel, display data passage).
But, existing picture output device can not obtain the EDID information of video adapting equipment and video display apparatus simultaneously, therefore the image that causes picture output device to be exported can not be supported simultaneously by video adapting equipment and video display apparatus, and then causes 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, to solve the EDID information that existing picture output device can not obtain video adapting equipment and video display apparatus simultaneously, therefore the image that causes picture output device to be exported can not be 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 is connected between described picture output device and the described video display apparatus, described video adapting equipment, be used to obtain the extending display identification data EDID information of described video display apparatus, compare with the EDID information of self, choose the EDID information identical, give described picture output device with identical EDID information feedback simultaneously with described video display apparatus.
The present invention also provides a kind of video adapting equipment, comprising:
Deriving means is used to obtain the EDID information of video display apparatus;
With the compare device that described deriving means links to each other, be used to contrast the EDID information of self and the EDID information of the video display apparatus that obtained of described deriving means;
With the selecting device that described compare device links to each other, be used to choose identical EDID information, described identical EDID information is described video adapting equipment and the total EDID information of described video display apparatus;
With the feedback assembly that described selecting device links to each other, be used to feed back described identical EDID information and give 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 the EDID information;
The request of reading identical EDID information that the receiver, video output device sends is fed back described identical EDID information according to described request and is given picture output device.
Use technique scheme, picture output device can get access to EDID information total in video adapting equipment and the 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 invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that EDID information sends synoptic diagram in the image display system provided by the present invention;
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 invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The applicant finds after deliberation, the EDID information that video adapting equipment and video display apparatus self are had in the image display system 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 display effect the best of D.Picture output device reads the EDID information of video adapting equipment, chooses with the output characteristics of self to compare, and adjusts the output of self automatically.
Yet,, influence in video display apparatus and can't normally show if video display apparatus does not have the EDID information of D type.Equally, if the selected EDID information of picture output device is that video adapting equipment is unsupported, cause image normally to show so equally.
In order to address the above problem, the embodiment of the 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 is connected between described picture output device and the described video display apparatus.
Video adapting equipment is used to obtain the EDID information of described video display apparatus, compares with self EDID information, chooses the EDID information identical with described video display apparatus, gives described picture output device with identical EDID information feedback simultaneously.Identical EDID information stores is in the EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM of video adapting equipment.
The transmission synoptic diagram of EDID information is as shown in Figure 1 between three equipment in the image display system that the embodiment of the invention provided, when equipment brings into operation, the CPU feedback of video adapting equipment is obtained the request of EDID information and is given video display apparatus, and video display apparatus is given video adapting equipment with the EDID information feedback 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, then both have three kinds of identical EDID information of A, B and C.Because the EDID information stores is in EEPROM, each EEPROM connects an equipment, so this moment, CPU control write identical EDID information with the read-write equipment that EEPROM links to each other, and can not read identical EDID information by picture output device.
When EDID information write finish after, the request of reading identical EDID information of video adapting equipment receiver, video output device feedback, CPU control read-write equipment is read identical EDID information, and by DDC will identical EDID information feedback 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 identify corresponding EDID information according to whether having with this among this sign inquiry EEPROM, when having EDID information among the EEPROM, then feed back to picture output device, otherwise, carry out the EDID information of obtaining video display apparatus.Why like this operation is 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, then need to obtain EDID information again, and can not from EEPROM, obtain identical EDID information, because variation has taken place the EDID information of this moment.
Use technique scheme, picture output device can get access to EDID information total in video adapting equipment and the 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 access to identical EDID information, according to the output characteristics of self, can choose display effect the best in the EDID information, adjust the output of self, and then shown image reaches optimal display result on the assurance video display apparatus, 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 invention.This video adapting equipment comprises: deriving means 10, compare device 11, selecting device 13 and feedback assembly 14.Wherein:
Deriving means 10 is used to obtain the EDID information of video display apparatus;
The compare device 11, are used to contrast the EDID information of self and the EDID information of the video display apparatus that obtained of deriving means 10;
Selecting device 12 is used to choose identical EDID information, and identical EDID information is described video adapting equipment and the total EDID information of described video display apparatus;
In addition, the another kind of structural representation of the video adapting equipment that provides of the embodiment of the invention as shown in Figure 3.This video adapting equipment also comprises: the memory storage 14 that links to each other with selecting device 12 is used to store the selected identical EDID information of selecting device 12.Memory storage 14 is EEPROM.
Owing to have like-identified, it is the video display apparatus of identical unit type, its EDID information also is identical, and then it is 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 to obtain 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 links to each other of sign deriving means 15, be used for inquiring about memory storage 14 and whether have with this and identify corresponding EDID information according to sign, this EDID information is the video adapting equipment EDID information identical with video display apparatus.When having EDID information in the memory storage 14, then obtain EDID information and feed back to picture output device by feedback assembly 13.Otherwise, carry out the EDID information of obtaining video display apparatus by deriving means 10.
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 to obtain 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, then carry out the EDID information of obtaining video display apparatus by deriving means 10, otherwise, carry out the EDID information of obtaining video display apparatus by deriving means 10.
Use technique scheme, video adapting equipment is chosen the EDID information that both have by the EDID information of contrast self and the EDID information of video display apparatus, and the total EDID information of feedback is given picture output device.Therefore, picture output device can obtain video adapting equipment and the total EDID information of video display apparatus, adjusts the image of self according to this EDID and exports, 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, identify corresponding EDID information according to whether having with this in the sign inquiry memory storage 14, when having EDID information in the memory storage 14, then EDID information is fed back to picture output device by feedback assembly 13, 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 invention provides, and this method is used for the image display system that the foregoing description provides, and the concrete steps of this 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 the EDID information;
S103: the request of reading identical EDID information that the receiver, video output device sends, feed back described identical EDID information according to described request and give picture output device.
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 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, inquire about whether to have with this in the video adapting equipment identifying corresponding EDID information, this EDID information is the video adapting equipment EDID information identical with video display apparatus; If 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 the EDID information;
S206: the request of reading identical EDID information that the receiver, video output device sends, feed back described identical EDID information according to described request and give picture output device.
Use technique scheme, when providing the video adapting equipment EDID information identical, further improved the work efficiency of video adapting equipment to picture output device with video display apparatus.
But, when the EDID of video display apparatus information updating, adopt method shown in Figure 5 can cause the identical EDID information errors that feeds back with like-identified, 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 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, inquire about whether to have with this in the video adapting equipment identifying corresponding EDID information, this EDID information is the video adapting equipment EDID information identical with video display apparatus; If 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 of judging 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 the EDID information;
S308: the request of reading identical EDID information that the receiver, video output device sends, feed back described identical EDID information according to described request and give picture output device.
Use technique scheme, guarantee the accuracy of the identical EDID information of feedback.
Illustrate: Fig. 4 three kinds of EDID information updating methods extremely shown in Figure 6 are feeding back identical EDID information to behind the picture output device, and identical EDID information stores in video adapting equipment, is convenient to inquire about.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The professional can also further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, 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 the combination of the two is implemented.Software module can place 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 the 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 conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. image display system comprises: picture output device, and video adapting equipment and video display apparatus, wherein, described video adapting equipment is connected between described picture output device and the described video display apparatus, it is characterized in that:
Described video adapting equipment, be used to obtain the extending display identification data EDID information of described video display apparatus, compare with the EDID information of self, choose the EDID information identical, give described picture output device with identical EDID information feedback simultaneously with described video display apparatus.
2. image display system according to claim 1 is characterized in that, described identical EDID information stores is 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 feeds back to described picture output device by display data passage DDC.
4. a video adapting equipment is characterized in that, comprising:
Deriving means is used to obtain the EDID information of video display apparatus;
With the compare device that described deriving means links to each other, be used to contrast the EDID information of self and the EDID information of the video display apparatus that obtained of described deriving means;
With the selecting device that described compare device links to each other, be used to choose identical EDID information, described identical EDID information is described video adapting equipment and the total EDID information of described video display apparatus;
With the feedback assembly that described selecting device links to each other, be used to feed back described identical EDID information and give picture output device.
5. video adapting equipment according to claim 4 is characterized in that, also comprises: with the memory storage that described selecting device links to each other, be used to store 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 to obtain the video display apparatus sign, and this label table photopic vision is the model of display device frequently;
The EDID information query device that links to each other with described sign deriving means, be used for inquiring about memory storage and whether have the corresponding EDID information of being obtained with this described sign deriving means of sign, 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 to obtain 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 the EDID information;
The request of reading identical EDID information that the receiver, video output device sends is fed back described identical EDID information according to described request and is given picture output device.
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, inquire about whether to have with this in the video adapting equipment identifying corresponding EDID information, this EDID information is the video adapting equipment EDID information identical with video display apparatus; If, 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;
Judge according to this sign whether the EDID information of video display apparatus is upgraded; If not, carry out the identical EDID information of obtaining, otherwise carry out the EDID information of obtaining video display apparatus.
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| 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 true CN102097079A (en) | 2011-06-15 |
| CN102097079B CN102097079B (en) | 2013-05-22 |
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| 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 |
| CN103870222A (en) * | 2012-12-11 | 2014-06-18 | 联想(北京)有限公司 | Display output control method and electronic device |
| 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 |
| CN107026996A (en) * | 2017-04-13 | 2017-08-08 | 西安万像电子科技有限公司 | The transmission method of data, device and system |
| CN111614994A (en) * | 2015-12-25 | 2020-09-01 | 麦克赛尔株式会社 | Projector with a light source |
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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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| 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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN103870222A (en) * | 2012-12-11 | 2014-06-18 | 联想(北京)有限公司 | Display output control method and electronic device |
| 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 |
| CN111614994A (en) * | 2015-12-25 | 2020-09-01 | 麦克赛尔株式会社 | Projector with a light source |
| CN111614994B (en) * | 2015-12-25 | 2022-11-25 | 麦克赛尔株式会社 | Projector apparatus |
| CN107026996A (en) * | 2017-04-13 | 2017-08-08 | 西安万像电子科技有限公司 | The transmission method of data, device and system |
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| CN102097079B (en) | 2013-05-22 |
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