CN106507015A - A kind of allotter display output method operated based on EDID - Google Patents
A kind of allotter display output method operated based on EDID Download PDFInfo
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- CN106507015A CN106507015A CN201510562702.3A CN201510562702A CN106507015A CN 106507015 A CN106507015 A CN 106507015A CN 201510562702 A CN201510562702 A CN 201510562702A CN 106507015 A CN106507015 A CN 106507015A
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- China
- Prior art keywords
- edid
- display device
- allotter
- operate
- read
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Abstract
The present invention relates to the allotter display output based on EDID.This method, solves the problems, such as now the single output mode of allotter on the market.After the display device of video frequency output accesses allotter, MCU controls the EDID which reads display device, then according to the configuration of toggle switch, arranges modification EDID, the video source of input according to modification after EDID, output video image gives Multiple-shower equipment.
Description
Technical field
This patent is related to a kind of allotter display output method operated based on EDID.
Background technology
Video distributor is：Realize video input all the way, the function of multi-channel video output, being allowed to can be
Distortionless or without in the case of loss of sharpness observe video frequency output.Generally video distributor is except offer multichannel
Outside independent video frequency output, have video signal enlarging function concurrently, therefore also become video distribution amplifier.
Allotter in the market only has single output display mode.
Content of the invention
This method discloses the method and system that multiple displays realized by a kind of allotter, wherein control system master
Body is the main control chip of a reproducible screen, controls MCU by toggle switch, is controlled by MCU
System reads the carrying out of display device EDID and uses.
The EDID of display device is read, output display mode is as follows：
The EDID that for the first time access display device is only read；
Read the EDID of the display device of special interface；
Read the EDID of all display devices and calculated merging；
The EDID of display device is not read, using built-in EDID.
Description of the drawings
Fig. 1 is EDID control flow charts；
Specific embodiment
Describe the present invention below in conjunction with the accompanying drawings：
As shown in figure 1, after the display device of video frequency output accesses allotter, at MCU control video sources
Reason chip reads the EDID of its display device, these EDID difference corresponding ports numberings I1, I2, I3,
After I4 etc., MCU are processed to these EDID, EDID_OUT is produced：
Wherein according to the configuration of toggle switch, the EDID for accessing display device for the first time can be only read,
Namely MCU is scanned, and reads the EDID of first equipment of insertion, then according to this
EDID produces EDID_OUT；
The EDID of the display device of special interface can also be read, is such as set
EDID, directly produces EDID_OUT；
The EDID of all display devices can also be read and calculated merging, read all access devices
EDID, according to I1, I2, I3, I4 comprehensively produce EDID_OUT to MCU；
The EDID for reading display device is can also be without, using built-in EDID, MCU storage insides
EDID, produces EDID_OUT.
Wherein, the EDID of DVI display devices is 128, and the EDID of HDMI display devices is
256.In order to solve compatibility issue, our EDID_OUT is 256, and not enough position is mended
0.
This EDID_OUT to MCU transmission of video frequency processing chip, regards according to this format analysis processing
Frequency image.Video image output is completed, the simple function of allotter is solved the problems, such as.
Claims (6)
1. a kind of based on EDID operate allotter display output method, it is characterised in that：Can read
The various EDID of rear end display device are taken, and unified display packing are provided according to the requirement of client.
2. according to right 1 based on EDID operate allotter output intent, it is characterised in that：
Multiple resolution of insertion display device can be read, and phase is carried out according to the toggle switch that client pre-sets
The EDID operations of pass, then export the video image of corresponding resolution.
3. according to right 2 based on EDID operate, it is characterised in that：Can read for the first time
The EDID of display device is accessed, and video image output is carried out according to this EDID, is subsequently inserted into
Display device is ignored.
4. according to right 2 based on EDID operate, it is characterised in that：Specific connecing can be read
The EDID of the display device of mouth, according to port set in advance, only using port insertion display device
EDID carry out video image output.
5. according to right 2 based on EDID operate, it is characterised in that：MCU carries out taking turn and sweeps
Retouch, as long as insertion display device, just reads the EDID of the display device, and calculated merging.
6. according to right 2 based on EDID operate, it is characterised in that：Can also be without by insertion
The EDID of display device how, carries out video image output using built-in EDID in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562702.3A CN106507015A (en) | 2015-09-08 | 2015-09-08 | A kind of allotter display output method operated based on EDID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562702.3A CN106507015A (en) | 2015-09-08 | 2015-09-08 | A kind of allotter display output method operated based on EDID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106507015A true CN106507015A (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510562702.3A Pending CN106507015A (en) | 2015-09-08 | 2015-09-08 | A kind of allotter display output method operated based on EDID |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109408121A (en) * | 2018-09-19 | 2019-03-01 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | EDID reading and configuring method, system and medium |
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| CN103297802A (en) * | 2013-05-14 | 2013-09-11 | 杨玉峰 | VGA (video graphic array) signal generator and distributor combination with EDID (extended display identification data) detection function |
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| CN203352718U (en) * | 2013-05-14 | 2013-12-18 | 佛山市进步科技有限公司 | VGA signal generator and signal distributor with EDID detective function |
| TWM505008U (en) * | 2014-12-25 | 2015-07-11 | Ite Tech Inc | Video bridge device and video output system |
| CN104796626A (en) * | 2015-04-17 | 2015-07-22 | 深圳市东明炬创电子有限公司 | Hybrid matrix dynamic intelligent EDID (extended display identification data) algorithm |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100935375B1 (en) * | 2008-10-20 | 2010-01-06 | (주) 마스타 | Picture quality test system |
| CN101894536A (en) * | 2010-06-26 | 2010-11-24 | 大连捷成实业发展有限公司 | Application method capable of enabling all displays connected to matrix to display normally |
| CN202443743U (en) * | 2012-02-24 | 2012-09-19 | 深圳市海美迪科技有限公司 | Portable HD (High Definition) player with high-speed mobile hard disk function |
| US20130250180A1 (en) * | 2012-03-21 | 2013-09-26 | Cheng-Si Wang | Hdmi signal distributor |
| CN103297802A (en) * | 2013-05-14 | 2013-09-11 | 杨玉峰 | VGA (video graphic array) signal generator and distributor combination with EDID (extended display identification data) detection function |
| CN203352718U (en) * | 2013-05-14 | 2013-12-18 | 佛山市进步科技有限公司 | VGA signal generator and signal distributor with EDID detective function |
| TWM505008U (en) * | 2014-12-25 | 2015-07-11 | Ite Tech Inc | Video bridge device and video output system |
| CN104796626A (en) * | 2015-04-17 | 2015-07-22 | 深圳市东明炬创电子有限公司 | Hybrid matrix dynamic intelligent EDID (extended display identification data) algorithm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109408121A (en) * | 2018-09-19 | 2019-03-01 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | EDID reading and configuring method, system and medium |
| CN109408121B (en) * | 2018-09-19 | 2021-09-14 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | EDID reading and configuring method, system and medium |
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Application publication date: 20170315 |
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