CN105704481A - Method and system for video interface channel detection - Google Patents
Method and system for video interface channel detection Download PDFInfo
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- CN105704481A CN105704481A CN201410707680.0A CN201410707680A CN105704481A CN 105704481 A CN105704481 A CN 105704481A CN 201410707680 A CN201410707680 A CN 201410707680A CN 105704481 A CN105704481 A CN 105704481A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
Abstract
The invention discloses a method and a system for video interface channel detection. The method for video interface channel detection includes following steps: a signal generator sends first image information to a current video interface of an image display device according to a video interface channel detection command sent by a debugging device so that the first image information is regarded as the current displayed image of the image display device; the debugging device sends a detection instruction to the image display device, wherein the detection instruction includes second image information corresponding to the first image information and an instruction for starting the detection; the image display device acquires the current displayed image according to the received detection instruction; and the image display device conducts image detection of the acquired images and the second image information and obtains a detection result. According to the method and the system, the efficiency for video interface channel detection of the image display device can be improved, and detection automation is realized.
Description
Technical field
The present invention relates to Air conduct measurement technical field, particularly relate to the method and system of a kind of video interface Air conduct measurement。
Background technology
Image display is television set, projector etc. such as, its video interface having gets more and more, as television set includes Video Graphics Array (VideoGraphicsArray, VGA) interface, high-definition multimedia (HighDefinitionMultimediaInterface, HDMI) interface etc.。Image display is when producing, it is necessary to each video interface is detected, judges that whether the hardware of each video port is normal。The detection of usual video interface passage is generally switched each information source by workman's manual operation, estimates whether the signal through the input of each video interface passage can normally show。This detection method is inefficient, and easily occurs that missing inspection causes that product is defective。
Summary of the invention
Present invention is primarily targeted at the solution image display inefficient technical problem of video interface Air conduct measurement。
For achieving the above object, the present invention provides a kind of method of video interface Air conduct measurement, and the method for described video interface Air conduct measurement comprises the following steps:
S1, the video interface channel sense command that signal generator sends according to commissioning device sends the first image information to the current video interface of image display, for described image display as currently displaying image；
S2, commissioning device sends detection instruction to image display, and wherein, described detection instruction comprises second image information corresponding with the first image information and the instruction of detection beginning；
S3, image display is according to the described currently displaying image of detection instruction acquisition received；
S4, acquired image and described second image information are carried out image detection by image display, obtain testing result。
Preferably, the step of described S4 includes:
S41, obtains the pixel coordinate information in described second image information, searches the pixel corresponding with described pixel coordinate information, and search the color information of described pixel in acquired image；
S42, obtains the picture-element color information in described second image information, calculates the picture-element color information in described second image information and the error of the color information of the pixel found, obtains testing result according to described error。
Preferably, including: S5 after the step of described S4, testing result is fed back to commissioning device by image display。
Preferably, described second image information is the parts of images information of described first image, and the second image information is random image information。
Preferably, the method for described video interface Air conduct measurement also includes:
S6, commissioning device sends video interface passage switching command to image display, signal generator respectively, image display, signal generator switch to corresponding video interface according to described video interface passage switching command respectively, return step S1 to image display transmission image information and to be circulated by corresponding video interface by signal generator, until having detected all video interfaces of image display。
In addition, for achieving the above object, the present invention also provides for the system of a kind of video interface Air conduct measurement, described system includes image display, commissioning device and signal generator, wherein, described commissioning device is connected by serial ports with described image display and signal generator respectively, described image display is connected by video line with signal generator, described commissioning device includes the first sending module, described signal generator includes the second sending module, described image display includes acquisition module, detection module, wherein:
Described first sending module, for sending video interface channel sense command to signal generator；
Described second sending module, for sending the first image information to the current video interface of image display, for described image display as currently displaying image；
Described first sending module, is additionally operable to send detection instruction to image display, wherein, and the instruction of the second image information that described detection instruction is corresponding with the first image information and detection beginning；
Described acquisition module, for according to the described currently displaying image of detection instruction acquisition received；
Described detection module, for acquired image and described second image information are carried out image detection, obtains testing result。
Preferably, described detection module includes:
Search unit, for obtaining the pixel coordinate information in described second image information, acquired image is searched the pixel corresponding with described pixel coordinate information, and searches the color information of described pixel；
Computing unit, for obtaining the picture-element color information in described second image information, calculates the picture-element color information in described second image information and the error of the color information of the pixel found, obtains testing result according to described error。
Preferably, described image display also includes feedback module, for testing result is fed back to commissioning device。
Preferably, described second image information is the parts of images information of described first image, and the second image information is random image information。
The method and system of a kind of video interface Air conduct measurement of the present invention, commissioning device is installed the video interface Air conduct measurement software program of image display, video interface channel sense command is sent to signal generator by commissioning device, signal generator provides signal source to image display, and by commissioning device to sending detection instruction to image display, the image that image display is currently displaying according to detecting instruction acquisition, then the image sent according to acquired image and commissioning device carries out image detection, the video interface passage of image display is detected with this, the present invention can improve the video interface Air conduct measurement efficiency of image display, realize the automatization of detection, and occur the probability of missing inspection to reduce。
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method first embodiment of video interface Air conduct measurement of the present invention；
Acquired image and described second image information are carried out image detection in Fig. 1 by Fig. 2, obtain the refinement schematic flow sheet of testing result；
Fig. 3 is the schematic flow sheet of method second embodiment of video interface Air conduct measurement of the present invention；
Fig. 4 is the schematic flow sheet of method the 3rd embodiment of video interface Air conduct measurement of the present invention；
Fig. 5 is the high-level schematic functional block diagram of the system first embodiment of video interface Air conduct measurement of the present invention；
Fig. 6 is the refinement high-level schematic functional block diagram of detection module in Fig. 5；
Fig. 7 is the high-level schematic functional block diagram of system second embodiment of video interface Air conduct measurement of the present invention。
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing。
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention。
The present invention provides a kind of method of video interface Air conduct measurement, and with reference to Fig. 1, in the first embodiment, the method for this video interface Air conduct measurement includes:
Step S1, the video interface channel sense command that signal generator sends according to commissioning device sends the first image information to the current video interface of image display, for described image display as currently displaying image；
In the present embodiment, image display has multiple, it is possible to be television set, projector etc.。The operating system of image display can be android system, it is also possible to is other intelligent operating system。Signal generator has various video interface, such as audio-video interface, Video Graphics Array interface or HDMI etc.。Signal generator connects the video interface of image display by video line。
Signal generator storage has the first image of multiple particular static, and the first image of described static state refers to that each frame picture is the same from image。Signal generator produces the first image information of particular static, it passes through video interface corresponding with image display current video interface on signal generator as signal source, through video line, then the current video interface then through image display is transferred to image display。
Current video interface such as image display is Video Graphics Array interface, then the video interface of corresponding signal generator is also Video Graphics Array interface。
Image display receives the first image information that signal generator sends, and is shown on screen as the use of test。
Step S2, commissioning device sends detection instruction to image display, and wherein, described detection instruction comprises second image information corresponding with the first image information and the instruction of detection beginning；
In the present embodiment, commissioning device can be the equipment such as computer, is connected by serial ports between its with image display。
Wherein, commissioning device is provided with the inspection software of the video interface passage of image display, passes through inspection software, it is possible to send detection instruction to image display。
Wherein, this detection instruction comprises the second image information and the instruction of detection beginning, this second image information is corresponding with the first above-mentioned image information, as, first image is complete piece image, and the second image only comprises a part for this complete image, the color information etc. of coordinate information and correspondence as only comprised the partial pixel point in complete image, and the second image information is random。
When signal generator sends the first image information according to the video interface channel sense command that commissioning device sends to image display, commissioning device sends second image information corresponding with the first image information by serial ports to image display。
Step S3, image display is according to the described currently displaying image of detection instruction acquisition received；
In the present embodiment, image display has various video interface equally, such as audio-video interface, Video Graphics Array interface or HDMI etc.。
Additionally, it is connected by serial ports between the commissioning device of the present embodiment and signal generator, commissioning device sends video interface channel sense command not only by serial ports to signal generator, serial ports can also be passed through and send the instruction of Switch Video interface to image display and signal generator so that it is can automatically switch video interface。
In the present embodiment, the currently displaying image of instruction acquisition that image display starts according to the detection in detection instruction, image acquisition is exactly obtain picture signal from described video interface, namely a currently displaying two field picture is captured, convert a fixing picture to, be saved in the file system that image display is built-in。The gatherer process of image display, for Android operation system, this system provides screenshotss program command: screencap。This order can the currently displaying image of capture screen, save as a pictures。After image display receives detection instruction, perform " screencap/tmp/test.png " order, currently displaying image is saved as the pictures under tmp catalogue: test.png。
Step S4, acquired image and described second image information are carried out image detection by image display, obtain testing result。
In the present embodiment, acquired image and the second image information are compared and calculate both error to carry out image detection by image display。Due to the information that the second image information is random, including the color information etc. of the coordinate information of pixel and pixel。Whether qualified mainly through calculating the error between the color information of the acquired image pixel corresponding with the second image information if detecting the video interface of image display for the present embodiment。
Compared with prior art, the present embodiment by installing the video interface Air conduct measurement software program of image display on commissioning device, video interface channel sense command is sent to signal generator by commissioning device, signal generator provides signal source to image display, and by commissioning device to sending detection instruction to image display, the image that image display is currently displaying according to detecting instruction acquisition, then the image sent according to acquired image and commissioning device carries out image detection, the video interface passage of image display is detected with this, the present embodiment need not manually come Switch Video interface channel, the video interface Air conduct measurement efficiency of image display can be improved, realize the automatization of detection, and occur the probability of missing inspection to reduce, increase customer satisfaction degree。
In a preferred embodiment, as in figure 2 it is shown, on the basis of the embodiment of above-mentioned Fig. 1, above-mentioned steps S4 includes:
S41, obtains the pixel coordinate information in described second image information, searches the pixel corresponding with described pixel coordinate information, and search the color information of described pixel in acquired image；
S42, obtain the picture-element color information in described second image information, calculate the picture-element color information in described second image information and the error of the color information of the pixel found, obtain testing result according to described error, and described error in allowed limits time, testing result is qualified。
In the present embodiment, image display obtains the color information of the pixel coordinate information in the second image information, respective pixel, the image collected is searched the pixel of above-mentioned coordinate information, then, calculate the color error of pixel one to one in the second image information and acquired image, and judge whether in allowed limits computed error, if, then detection is passed through, otherwise, detection is not passed through, and the hardware of the video port of this image display occurs abnormal, for underproof product。
As it is shown on figure 3, on the basis of the embodiment of above-mentioned Fig. 1, it is proposed to the second embodiment, include after described step S4: step S5, testing result is fed back to commissioning device by image display。
In the present embodiment, described testing result is fed back to commissioning device by image display, and shows on commissioning device。According to testing result, testing staff can judge that whether the video interface passage of image display is normal。
The present embodiment need not testing staff be estimated by whether the signal of each video interface can normally show, is greatly improved the efficiency of video interface Air conduct measurement。
As shown in Figure 4, on the basis of the embodiment of above-mentioned Fig. 2, it is proposed to the 3rd embodiment, the method for described video interface Air conduct measurement also includes:
Step S6, commissioning device sends video interface passage switching command to image display, signal generator respectively, image display, signal generator switch to corresponding video interface according to described video interface passage switching command respectively, return step S1 to image display transmission image information and to be circulated by corresponding video interface by signal generator, until having detected all video interfaces of image display。
In the present embodiment, when after the passage at current video interface place having detected image display, switching command is sent by commissioning device, switch to other video interface passages to detect, synchronous signal generator also switches to corresponding video interface, until the Air conduct measurement by all video interface places of image display is complete。
In the present embodiment, video interface switching command is sent to image display and signal generator by commissioning device, image display and signal generator switch to the video interface of correspondence, in this way, carry out the automatic switchover of video interface passage, it is possible to increase the efficiency of video interface Air conduct measurement。
The present invention also provides for the system of a kind of video interface Air conduct measurement, as shown in Figure 5, in one embodiment, system includes image display, commissioning device and signal generator, wherein, commissioning device is connected by serial ports with image display and signal generator respectively, image display is connected by video line with signal generator, commissioning device includes the first sending module 101, signal generator includes the second sending module 102, described image display includes acquisition module 103, detection module 104, wherein:
First sending module 101, for sending video interface channel sense command to signal generator；
Second sending module 102, after sending video interface channel sense command at the first sending module 101 receiving described commissioning device, the first image information is sent, for described image display as currently displaying image to the current video interface of image display；
In the present embodiment, image display has multiple, it is possible to be television set, projector etc.。The operating system of image display can be android system, it is also possible to is other intelligent operating system。Signal generator has various video interface, such as audio-video interface, Video Graphics Array interface or HDMI etc.。Signal generator connects the video interface of image display by video line。
Signal generator storage has the first image of multiple particular static, and the first image of described static state refers to that each frame picture is the same from image。Signal generator produces the first image information of particular static, and it is as signal source by the video interface corresponding with image display current video interface, and through video line, then the current video interface then through image display is transferred to image display。
Current video interface such as image display is Video Graphics Array interface, then the video interface of corresponding signal generator is also Video Graphics Array interface。
Image display receives the first image information that signal generator sends, and is shown on screen as the use of test。
First sending module 101, it is additionally operable to after the second sending module 102 sends the first image information to the current video interface of image display, detection instruction is sent to image display, wherein, described detection instruction comprises second image information corresponding with the first image information and the instruction of detection beginning；
In the present embodiment, commissioning device can be the equipment such as computer, is connected by serial ports between its with image display。
Wherein, commissioning device is provided with the inspection software of the video interface passage of image display, passes through inspection software, it is possible to send detection instruction to image display。
Wherein, this detection instruction comprises the second image information and the instruction of detection beginning, this second image information is corresponding with the first above-mentioned image information, as, first image is complete piece image, and the second image only comprises a part for this complete image, the color information etc. of coordinate information and correspondence as only comprised the partial pixel point in complete image, and the second image information is random。
When signal generator sends the first image information according to the video interface channel sense command that commissioning device sends to image display, commissioning device sends second image information corresponding with the first image information by serial ports to image display。
Acquisition module 103, for according to the described currently displaying image of detection instruction acquisition received；
In the present embodiment, image display has various video interface equally, such as audio-video interface, Video Graphics Array interface or HDMI etc.。
Additionally, it is connected by serial ports between the commissioning device of the present embodiment and signal generator, commissioning device sends video interface channel sense command not only by serial ports to signal generator, serial ports can also be passed through and send the instruction of Switch Video interface to image display and signal generator so that it is can automatically switch video interface。
In the present embodiment, the currently displaying image of instruction acquisition that image display starts according to the detection in detection instruction, image acquisition is exactly obtain picture signal from video interface, namely a currently displaying two field picture is captured, convert a fixing picture to, be saved in the file system that image display is built-in。The gatherer process of image display, for Android operation system, this system provides screenshotss program command: screencap。This order can the currently displaying image of capture screen, save as a pictures。After image display receives detection instruction, perform " screencap/tmp/test.png " order, currently displaying image is saved as the pictures under tmp catalogue: test.png。
Detection module 104, for acquired image and described second image information are carried out image detection, obtains testing result。
In the present embodiment, acquired image and the second image information are compared and calculate both error to carry out image detection by image display。Due to the information that the second image information is random, including the color information etc. of the coordinate information of pixel and pixel。Whether qualified mainly through calculating the error between the color information of the acquired image pixel corresponding with the second image information if detecting the video interface of image display for the present embodiment。
In a preferred embodiment, as shown in Figure 6, on the basis of the embodiment of above-mentioned Fig. 5, above-mentioned detection module 104 includes:
Search unit 1041, for obtaining the pixel coordinate information in described second image information, acquired image is searched the pixel corresponding with described pixel coordinate information, and searches the color information of described pixel；
Computing unit 1042, for obtaining the picture-element color information in described second image information, calculates the picture-element color information in described second image information and the error of the color information of the pixel found, obtains testing result according to described error。
In the present embodiment, image display obtains the color information of the pixel coordinate information in the second image information, respective pixel, the image collected is searched the pixel of above-mentioned coordinate information, then, calculate the color error of pixel one to one in the second image information and acquired image, and judge whether in allowed limits computed error, if, then detection is passed through, otherwise, detection is not passed through, and the hardware of the video port of this image display occurs abnormal, for underproof product。
As it is shown in fig. 7, on the basis of the embodiment of above-mentioned Fig. 5, it is proposed to the second embodiment, described image display also includes feedback module 105, for testing result is fed back to commissioning device。
In the present embodiment, testing result is fed back to commissioning device by image display, and shows on commissioning device。According to testing result information, testing staff can judge that whether the video interface passage of image display is normal。
The present embodiment need not testing staff be estimated by whether the signal of each video interface can normally show, is greatly improved the efficiency of video interface Air conduct measurement。
In a preferred embodiment, when after the passage at current video interface place having detected image display, video interface passage switching command is sent respectively to image display and signal generator by commissioning device, image display switches to other video interface passages and detects, synchronous signal generator also switches to corresponding video interface passage, until the Air conduct measurement by all video interface places of image display is complete。
In the present embodiment, video interface switching command is sent to image display and signal generator by commissioning device, image display and signal generator switch to the video interface of correspondence, in this way, carry out the automatic switchover of video interface passage, it is possible to increase the efficiency of video interface Air conduct measurement。
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention。
Claims (9)
1. the method for a video interface Air conduct measurement, it is characterised in that the method for described video interface Air conduct measurement comprises the following steps:
S1, the video interface channel sense command that signal generator sends according to commissioning device sends the first image information to the current video interface of image display, for described image display as currently displaying image；
S2, commissioning device sends detection instruction to image display, and wherein, described detection instruction comprises second image information corresponding with the first image information and the instruction of detection beginning；
S3, image display is according to the described currently displaying image of detection instruction acquisition received；
S4, acquired image and described second image information are carried out image detection by image display, obtain testing result。
2. the method for video interface Air conduct measurement as claimed in claim 1, it is characterised in that the step of described S4 includes:
S41, obtains the pixel coordinate information in described second image information, searches the pixel corresponding with described pixel coordinate information, and search the color information of described pixel in acquired image；
S42, obtains the picture-element color information in described second image information, calculates the picture-element color information in described second image information and the error of the color information of the pixel found, obtains testing result according to described error。
3. the method for video interface Air conduct measurement as claimed in claim 1, it is characterised in that including after the step of described S4: S5, testing result is fed back to commissioning device by image display。
4. the method for video interface Air conduct measurement as claimed in claim 1 or 2, it is characterised in that described second image information is the parts of images information of described first image, and the second image information is random image information。
5. the method for the video interface Air conduct measurement as described in any one of claims 1 to 3, it is characterised in that the method for described video interface Air conduct measurement also includes:
S6, commissioning device sends video interface passage switching command to image display, signal generator respectively, image display, signal generator switch to corresponding video interface according to described video interface passage switching command respectively, return step S1 to image display transmission image information and to be circulated by corresponding video interface by signal generator, until having detected all video interfaces of image display。
6. the system of a video interface Air conduct measurement, it is characterized in that, described system includes image display, commissioning device and signal generator, wherein, described commissioning device is connected by serial ports with described image display and signal generator respectively, and described image display is connected by video line with signal generator, described commissioning device includes the first sending module, described signal generator includes the second sending module, and described image display includes acquisition module, detection module, wherein:
Described first sending module, for sending video interface channel sense command to signal generator；
Described second sending module, for sending the first image information to the current video interface of image display, for described image display as currently displaying image；
Described first sending module, is additionally operable to send detection instruction to image display, wherein, and the instruction of the second image information that described detection instruction is corresponding with the first image information and detection beginning；
Described acquisition module, for according to the described currently displaying image of detection instruction acquisition received；
Described detection module, for acquired image and described second image information are carried out image detection, obtains testing result。
7. the system of video interface Air conduct measurement as claimed in claim 6, it is characterised in that described detection module includes:
Search unit, for obtaining the pixel coordinate information in described second image information, acquired image is searched the pixel corresponding with described pixel coordinate information, and searches the color information of described pixel；
Computing unit, for obtaining the picture-element color information in described second image information, calculates the picture-element color information in described second image information and the error of the color information of the pixel found, obtains testing result according to described error。
8. the system of video interface Air conduct measurement as claimed in claim 6, it is characterised in that described image display also includes feedback module, for testing result is fed back to commissioning device。
9. the system of video interface Air conduct measurement as claimed in claims 6 or 7, it is characterised in that described second image information is the parts of images information of described first image, and the second image information is random image information。
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| CN201410707680.0A CN105704481B (en) | 2014-11-27 | 2014-11-27 | The method and system of video interface Air conduct measurement |
| PCT/CN2015/090230 WO2016082611A1 (en) | 2014-11-27 | 2015-09-22 | Method and system for detecting video interface channel |
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| CN106303514A (en) * | 2016-09-08 | 2017-01-04 | 珠海全志科技股份有限公司 | Analog video interface testing circuit and detection method, integrated chip |
| CN106303514B (en) * | 2016-09-08 | 2019-01-04 | 珠海全志科技股份有限公司 | Analog video interface detection circuit and its detection method, integrated chip |
| CN106454329A (en) * | 2016-10-26 | 2017-02-22 | 中国电子产品可靠性与环境试验研究所 | Image acquisition detection system and method |
| WO2018113344A1 (en) * | 2016-12-20 | 2018-06-28 | 郑州云海信息技术有限公司 | Vga interface test method, device and system |
| CN106713905B (en) * | 2016-12-26 | 2019-02-26 | 百富计算机技术（深圳）有限公司 | The method and apparatus of detection image transmission quality |
| CN109068132A (en) * | 2018-08-22 | 2018-12-21 | 广州视源电子科技股份有限公司 | A kind of test method, device, equipment and the storage medium of VBO display interface |
| CN109068132B (en) * | 2018-08-22 | 2020-05-12 | 广州视源电子科技股份有限公司 | VBO display interface test method, device, equipment and storage medium |
| CN110010044A (en) * | 2019-04-02 | 2019-07-12 | 上海帆声图像科技有限公司 | It is a kind of to show the display detection method of equipment, apparatus and system |
| CN111372076A (en) * | 2020-03-04 | 2020-07-03 | 京东方科技集团股份有限公司 | System and method for testing stability of video interface |
| WO2021174978A1 (en) * | 2020-03-04 | 2021-09-10 | 京东方科技集团股份有限公司 | Testing system and testing method for video interface stability |
| US11917125B2 (en) | 2020-03-04 | 2024-02-27 | Boe Technology Group Co., Ltd. | Test system and test method for stability of video interface |
| CN111901584A (en) * | 2020-07-03 | 2020-11-06 | 深圳康佳电子科技有限公司 | Automatic detection method and device for television transmission channel, intelligent terminal and storage medium |
| CN111929034A (en) * | 2020-07-16 | 2020-11-13 | 艾体威尔电子技术(北京)有限公司 | Automatic screen defect testing method based on POS machine model |
| CN116110311A (en) * | 2023-04-13 | 2023-05-12 | 海的电子科技(苏州)有限公司 | Point screen detection method, system, equipment and storage medium |
| CN116110311B (en) * | 2023-04-13 | 2023-06-27 | 海的电子科技(苏州)有限公司 | Point screen detection method, system, equipment and storage medium |
| CN116704920A (en) * | 2023-04-13 | 2023-09-05 | 海的电子科技(苏州)有限公司 | Point screen detection method, system, equipment and storage medium |
| CN116704920B (en) * | 2023-04-13 | 2024-01-26 | 海的电子科技(苏州)有限公司 | Point screen detection method, system, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105704481B (en) | 2018-04-10 |
| WO2016082611A1 (en) | 2016-06-02 |
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