CN109256084A - It can cascade LED display control card, the cascade control method of realization and HDMI signal processing method - Google Patents
It can cascade LED display control card, the cascade control method of realization and HDMI signal processing method Download PDFInfo
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- CN109256084A CN109256084A CN201811271487.1A CN201811271487A CN109256084A CN 109256084 A CN109256084 A CN 109256084A CN 201811271487 A CN201811271487 A CN 201811271487A CN 109256084 A CN109256084 A CN 109256084A
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- control card
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- cascade
- led display
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003672 processing method Methods 0.000 title claims abstract description 6
- 230000000007 visual effect Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 10
- 230000002238 attenuated effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention relates to can cascade LED display control card, the cascade control method of realization and HDMI signal processing method.This can cascade LED display control card, including at least one control card, the control card is connect by digital visual interface and USB interface with host computer, is directly connected to, is additionally provided in control card for digital visual interface associated with the control card grade with extension with LED display by HUB interface.
Description
Technical field
The present invention relates to a kind of LED display control field, in particular to one kind can cascade LED display control card,
Realize cascade control method and HDMI signal processing method.
Background technique
CN201220450599.5 disclose one kind can cascade LED display controller, its purpose is to provide one kind
Solve existing LED display control mechanism load capacity it is poor, it is at high cost and easily there is data loss problem can cascade LED
Displaying screen controller.The technical solution: this can cascade LED display controller, including at least one controller, the control
Device one end is connect with host computer, and the other end is connect with by control LED display control panel, be additionally provided on controller for expansion
The image connector and information of the controller connection of exhibition transmit interface.The disadvantages are as follows: the control in LED display control system
Fabrication is mainly used for the configuration connection to LED display.But existing controller has the following problems: (1) load capacity is poor: control
The load capacity of fabrication is related to the maximum pixel area for the display screen that it can be supported, existing control card is limited due to load capacity
System, it is difficult to meet the control of extra-large LED display screen, therefore technical staff realizes pair by using two sets or more of control card
Still after multi-stage cascade, easily there is flash-point, splashette problem in the control of extra-large LED display screen.(2) controller subtending port is more: control
Fabrication and extension control card cascade at least need a digital visual interface and a serial interface.Technical staff is in cascade operation
On be not very easy.Thus it also results in and occupies unnecessary space on circuit board.(3) multi-stage cascade transmits signal at a distance and declines
Subtract: after multi-stage cascade transmits at a distance, apparent decaying, which occurs, in the signal of digital video leads to LED display flash-point, splashette
Problem cannot achieve the cascade of 10 grades of control cards or more.
Summary of the invention
Mainly solve that existing LED display control system load capacity is poor, control card the object of the present invention is to provide one kind
The problem of signal attenuation that subtending port is mostly transmitted with multi-stage cascade at a distance can cascade LED display control card and its HDMI
Signal processing method.It is a further object of the present invention to provide a kind of load capacities for promoting control card system, and simplify control
Block cascade mode, the cascade of control card need to only can be realized by a digital visual interface, improve multi-stage cascade control
Card signal long-distance transmission after cause LED display occur flash-point, splashette problem LED display control card realize it is cascade
Method.
The technical solution of the invention is as follows this can cascade LED display control card, including at least one control card,
It is characterized in that, the control card is connect by digital visual interface and USB interface with host computer, and HUB interface and LED are passed through
Display screen is directly connected to, and is additionally provided in control card for digital visual interface associated with the control card grade with extension.
As preferred: control card can be realized by a digital visual interface in the control card and the control card of extension
Cascade, and at least support 10 grades of cascades.
As preferred: two nonessential pins by redefining digital visual interface are used as serial ports, to realize
The serial ports of LED display control card cascades.
As preferred: the control card can be handled the HDMI signal in transmission, eliminate intersymbol interference and high frequency with
Machine shake, electrode compensation decaying, then next stage control card is sent to by digital visual interface outlet.
As preferred: the HDMI signal is come in by HDMI interface import, is divided by HDMI signal one-to-two module
Two-way HDMI signal after handling using processor, is sent wherein decoding all the way by HDMI decoding chip by HUB interface
To LED display；Another way first passes through HDMI signal processing module, handles the HDMI signal in transmission, eliminates intersymbol
Interference and shake, electrode compensation enhance signal, are finally sent to next stage control card by HDMI interface outlet again.
As preferred: the HDMI signal is come in by HDMI interface, by the processing of HDMI video signal decoding chip
Afterwards, it is transferred to processor；The processor exports two-path video signal, and signal is directly output to LED by HUB interface and shows all the way
Display screen；Another way signal, which exports, gives HDMI video signal coder, by signal processing, sends out finally by HDMI interface delivery outlet
It send to next stage control card.
As preferred: the digital visual interface being arranged in the control card is DVI interface or HDMI interface, and the USB connects
Mouth is the interface of control card Yu host computer communication, and the HUB interface is control card transmitting display data information to LED display
The interface of mould group.
Another technical solution of the invention is that the LED display control card realizes cascade method, special character
It is, comprising the following steps:
(1) when control card USB interface connects host computer, usb signal switchs to rs 232 serial interface signal by MCU and is transferred in control card
Processor；
(2) processor can carry out identification judgement to the data packet in serial communication transmission, if be used to the same level control card；
It (3) is that then processor can be transferred to MCU；
(4) no, then processor will do it forwarding, be transferred to next stage control card by HDMI interface delivery outlet；
(5) when control card USB interface does not connect, the control card that HDMI interface input port can receive upper level is forwarded
Serial communication transmission in data packet, and be transferred to the processor in control card；
(6) processor can carry out identification judgement to data packet, if be used to the same level control card；
It (7) is that then processor can be transferred to MCU；
(8) no, then processor will continue to be forwarded, and be transferred to next stage control card by HDMI interface delivery outlet.
Another technical solution of the invention be this can cascade LED display control card the signal processing side HDMI
Method is characterized in that, comprising the following steps:
(1), when the shake of input is in the PLL bandwidth of clock and data recovery CDR, shake will be output directly to next stage control
Fabrication；
(2) the high dither on the loop bandwidth of clock and data recovery CDR will be attenuated, and come from video source to reduce
High dither.
Compared with prior art, beneficial effects of the present invention:
(1) the present invention improves the load capacity of control card system, and simplifies the cascade mode of control card, need to only pass through
The cascade of control card can be realized in one digital visual interface, leads after improving the signal long-distance transmission of multi-stage cascade control card
LED display is caused the problem of flash-point, splashette occur.
(2) LED display control system load capacity of the present invention is strong, control card subtending port is few and multi-stage cascade is remote
The signal of transmission is unattenuated.
Detailed description of the invention
Fig. 1 be the present invention can cascade LED display control card cascade system connection schematic diagram；
Fig. 2 is that the present invention can cascade LED display control card HDMI signal flow graph；
Fig. 3 be another embodiment of the present invention can cascade LED display control card HDMI signal flow graph；
Fig. 4 be the present invention can cascade LED display control card serial ports topological diagram；
Fig. 5 be the present invention can cascade LED display control card cascade system serial ports cascade signal flow chart.
Fig. 6 is the flow chart that the present invention realizes LED display control card cascade Mach-Zehnder interferometer method.
Specific embodiment
The present invention is further detailed in conjunction with the accompanying drawings below:
Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 6 show one embodiment of the invention.
Refering to Figure 1, can cascade LED display control system, include that control card, host computer and LED are shown
Screen.
The cascade control card 1 is transmitted by HDMI wire and USB line and host computer connecting communication.And cascade control
Card 1 waits the control card of extensions that need to only connect completion cascade by HDMI wire with cascade control card 2.Every level-one control card is all
HDMI signal is come in, and two-way HDMI signal is divided into.HDMI signal passes through HUB interface after control Card processor processing all the way
It is sent to LED display, another way is sent to next stage control card by HDMI delivery outlet.
It please refers to shown in Fig. 2, includes HDMI interface, HDMI signal one-to-two, the unit modules such as HDMI signal processing.
The HDMI signal is come in by HDMI interface import, is divided into two-way HDMI letter by HDMI signal one-to-two module
Number, wherein being decoded all the way by HDMI decoding chip, after being handled using processor, LED is sent to by HUB interface and is shown
Screen.Another way first passes through HDMI signal processing module, handles the HDMI signal in transmission, eliminates intersymbol interference and trembles
Dynamic, electrode compensation enhances signal, is finally sent to next stage control card by HDMI interface outlet again.
The realization principle of HDMI signal processing step in Fig. 2 is as follows: utilizing clock and data recovery CDR (clock data
Recovery) technology makes it in receiving end, and the data information transmitted is not losing its integrality and the quilt in adjoint timing
It detects, and minimizes the amount of jitter for snapping into next stage control card from control.When the shake of input is in clock and data recovery CDR
PLL bandwidth in, shake will be output directly to next stage control card；And on the loop bandwidth of clock and data recovery CDR
High dither will be attenuated, to reduce the high dither from video source.Preemphasis and deweighting technique are also used, in order to
Intersymbol interference and shake are eliminated, also for loss of the compensation in the circuit that CDR bandwidth limits and caused by cable transmission.
After it have passed through HDMI signal processing, it will be apparent that improve the matter of the HDMI signal transmitted in control card cascade circuit
Amount.
Please refer to shown in Fig. 4 and Fig. 5, the cascade of the serial ports of control card of the invention, by redefine HDMI interface 13,
14 pins are as serial ports with (13 feet before be to do CEC function, 14 feet are spare pins).
It please refers to shown in Fig. 6, which realizes cascade control method, comprising the following steps:
(1) when control card USB interface connects host computer, usb signal switchs to rs 232 serial interface signal by MCU and is transferred in control card
Processor；
(2) processor can carry out identification judgement to the data packet in serial communication transmission, if be used to the same level control card；
It (3) is that then processor can be transferred to MCU；
(4) no, then processor will do it forwarding, be transferred to next stage control card by HDMI interface delivery outlet；
(5) when control card USB interface does not connect, the control card that HDMI interface input port can receive upper level is forwarded
Serial communication transmission in data packet, and be transferred to the processor in control card；
(6) processor can carry out identification judgement to data packet, if be used to the same level control card；
It (7) is that then processor can be transferred to MCU；
(8) no, then processor will continue to be forwarded, and be transferred to next stage control card by HDMI interface delivery outlet.
Theoretically, which can realize the cascade of infinite stages.
Fig. 1, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 show second embodiment of the invention.
Refering to Figure 1, can cascade LED display control system, include that control card, host computer and LED are shown
Screen.
The cascade control card 1 is transmitted by HDMI wire and USB line and host computer connecting communication.And cascade control
Card 1 waits the control card of extensions that need to only connect completion cascade by HDMI wire with cascade control card 2.Every level-one control card is all
HDMI signal is come in, and two-way HDMI signal is divided into.HDMI signal passes through HUB interface after control Card processor processing all the way
It is sent to LED display, another way is sent to next stage control card by HDMI delivery outlet.
It please refers to shown in Fig. 3, includes HDMI interface, HDMI decoder, HDMI encoder, the unit modules such as processor.
The HDMI signal is come in by HDMI interface, after the processing of HDMI video signal decoding chip, is transferred to
Processor, the processor export two-path video signal, and signal is directly output to LED display by HUB interface all the way；It is another
Road signal, which exports, gives HDMI video signal coder, by signal processing, is sent to finally by HDMI interface delivery outlet next
Grade control card is finally sent to next stage control card by HDMI interface outlet again.
Processor regenerates HDMI signal, using clock and data recovery CDR (clock data recovery) technology,
Make it in receiving end, the data information transmitted is not being lost its integrality and is being detected in adjoint timing, and most
Smallization snaps into the amount of jitter of next stage control card from control.
After it have passed through HDMI signal processing, it will be apparent that improve the matter of the HDMI signal transmitted in control card cascade circuit
Amount.
Please refer to shown in Fig. 4 and Fig. 5, the cascade of the serial ports of control card of the invention, by redefine HDMI interface 13,
14 pins are as serial ports with (13 feet before be to do CEC function, 14 feet are spare pins).
It please refers to shown in Fig. 6, which realizes cascade control method, comprising the following steps:
(1) when control card USB interface connects host computer, usb signal switchs to rs 232 serial interface signal by MCU and is transferred in control card
Processor；
(2) processor can carry out identification judgement to the data packet in serial communication transmission, if be used to the same level control card；
It (3) is that then processor can be transferred to MCU；
(4) no, then processor will do it forwarding, be transferred to next stage control card by HDMI interface delivery outlet；
(5) when control card USB interface does not connect, the control card that HDMI interface input port can receive upper level is forwarded
Serial communication transmission in data packet, and be transferred to the processor in control card；
(6) processor can carry out identification judgement to data packet, if be used to the same level control card；
It (7) is that then processor can be transferred to MCU；
(8) no, then processor will continue to be forwarded, and be transferred to next stage control card by HDMI interface delivery outlet.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the invention as claimed with
Modification, should all belong to the covering scope of the claims in the present invention.
Claims (9)
1. one kind can cascade LED display control card, including at least one control card, which is characterized in that the control cartoon
It crosses digital visual interface and USB interface is connect with host computer, be directly connected to by HUB interface with LED display, in control card also
It is provided with for digital visual interface associated with the control card grade with extension.
2. according to claim 1 can cascade LED display control card, which is characterized in that the control card and extension
The cascade of control card can be realized by a digital visual interface for control card, and at least support 10 grades of cascades.
3. according to claim 2 can cascade LED display control card, which is characterized in that by redefining digital view
Two nonessential pins of frequency interface are used as serial ports, to realize the serial ports cascade of LED display control card.
4. according to claim 2 can cascade LED display control card, which is characterized in that the control card can be to transmission
In HDMI signal handled, eliminate intersymbol interference and high frequency randomized jitter, electrode compensation decaying, then connect by digital video
Mouth outlet is sent to next stage control card.
5. according to claim 4 can cascade LED display control card, which is characterized in that the HDMI signal passes through
HDMI interface import is come in, and is divided into two-way HDMI signal by HDMI signal one-to-two module, wherein decoding all the way by HDMI
Chip decoding, after handling using processor, is sent to LED display by HUB interface；Another way first passes through HDMI signal
Processing module handles the HDMI signal in transmission, and eliminating intersymbol interference and shake, electrode compensation enhances signal, finally
Next stage control card is sent to by HDMI interface outlet again.
6. according to claim 4 can cascade LED display control card, which is characterized in that the HDMI signal passes through
HDMI interface is come in, and after the processing of HDMI video signal decoding chip, is transferred to processor；The processor exports two-way
Vision signal, signal is directly output to LED display by HUB interface all the way；Another way signal, which exports, gives HDMI video signal
Encoder is sent to next stage control card finally by HDMI interface delivery outlet by signal processing.
7. according to claim 1 can cascade LED display control card, which is characterized in that be arranged in the control card
Digital visual interface is DVI interface or HDMI interface, and the USB interface is the interface of control card Yu host computer communication, described
HUB interface is interface of the control card transmitting display data information to LED display mould group.
8. a kind of LED display control card realizes cascade control method, which comprises the following steps:
(1) when control card USB interface connects host computer, usb signal switchs to the place that rs 232 serial interface signal is transferred in control card by MCU
Manage device；
(2) processor can carry out identification judgement to the data packet in serial communication transmission, if be used to the same level control card；
It (3) is that then processor can be transferred to MCU；
(4) no, then processor will do it forwarding, be transferred to next stage control card by HDMI interface delivery outlet；
(5) when control card USB interface does not connect, HDMI interface input port can receive the string that the control card of upper level forwards
Data packet in mouth communication transfer, and it is transferred to the processor in control card；
(6) processor can carry out identification judgement to data packet, if be used to the same level control card；
It (7) is that then processor can be transferred to MCU；
(8) no, then processor will continue to be forwarded, and be transferred to next stage control card by HDMI interface delivery outlet.
9. it is a kind of can cascade LED display control card HDMI signal processing method, which comprises the following steps:
(1), when the shake of input is in the PLL bandwidth of clock and data recovery CDR, shake will be output directly to next stage control
Card；
(2) the high dither on the loop bandwidth of clock and data recovery CDR will be attenuated, to reduce the height from video source
Frequency is shaken.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271487.1A CN109256084B (en) | 2018-10-29 | 2018-10-29 | Cascade LED display screen control card, control method for realizing cascade connection and HDMI signal processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271487.1A CN109256084B (en) | 2018-10-29 | 2018-10-29 | Cascade LED display screen control card, control method for realizing cascade connection and HDMI signal processing method |
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| CN109256084A true CN109256084A (en) | 2019-01-22 |
| CN109256084B CN109256084B (en) | 2023-11-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111935420A (en) * | 2020-08-13 | 2020-11-13 | 深圳市注目视讯技术有限公司 | Method for infinitely expanding signal interface node |
| CN113938630A (en) * | 2021-10-08 | 2022-01-14 | 浙江大华技术股份有限公司 | Control method of LED display screen and display screen group |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734545A (en) * | 2005-06-27 | 2006-02-15 | 康佳集团股份有限公司 | LED display screen signal interconnection method |
| CN102903332A (en) * | 2012-10-23 | 2013-01-30 | 西安诺瓦电子科技有限公司 | Asynchronous control method and card of LED display screen |
| CN202796002U (en) * | 2012-09-05 | 2013-03-13 | 西安诺瓦电子科技有限公司 | Remote transmission light-emitting diode (LED) display screen controller |
| CN105099844A (en) * | 2015-07-23 | 2015-11-25 | 西安诺瓦电子科技有限公司 | Media release method, media data acquisition method and media release system |
| CN205487273U (en) * | 2016-02-03 | 2016-08-17 | 西安诺瓦电子科技有限公司 | Led display screen control system and scanning card |
| CN206712943U (en) * | 2017-05-02 | 2017-12-05 | 西安诺瓦电子科技有限公司 | Display control card and display control program |
| CN207217079U (en) * | 2017-09-30 | 2018-04-10 | 北京集创北方科技股份有限公司 | Display drive apparatus and display device |
| CN209000510U (en) * | 2018-10-29 | 2019-06-18 | 深圳市摩西尔电子有限公司 | It can cascade LED display control card |
-
2018
- 2018-10-29 CN CN201811271487.1A patent/CN109256084B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734545A (en) * | 2005-06-27 | 2006-02-15 | 康佳集团股份有限公司 | LED display screen signal interconnection method |
| CN202796002U (en) * | 2012-09-05 | 2013-03-13 | 西安诺瓦电子科技有限公司 | Remote transmission light-emitting diode (LED) display screen controller |
| CN102903332A (en) * | 2012-10-23 | 2013-01-30 | 西安诺瓦电子科技有限公司 | Asynchronous control method and card of LED display screen |
| CN105099844A (en) * | 2015-07-23 | 2015-11-25 | 西安诺瓦电子科技有限公司 | Media release method, media data acquisition method and media release system |
| CN205487273U (en) * | 2016-02-03 | 2016-08-17 | 西安诺瓦电子科技有限公司 | Led display screen control system and scanning card |
| CN206712943U (en) * | 2017-05-02 | 2017-12-05 | 西安诺瓦电子科技有限公司 | Display control card and display control program |
| CN207217079U (en) * | 2017-09-30 | 2018-04-10 | 北京集创北方科技股份有限公司 | Display drive apparatus and display device |
| CN209000510U (en) * | 2018-10-29 | 2019-06-18 | 深圳市摩西尔电子有限公司 | It can cascade LED display control card |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111935420A (en) * | 2020-08-13 | 2020-11-13 | 深圳市注目视讯技术有限公司 | Method for infinitely expanding signal interface node |
| CN113938630A (en) * | 2021-10-08 | 2022-01-14 | 浙江大华技术股份有限公司 | Control method of LED display screen and display screen group |
| CN113938630B (en) * | 2021-10-08 | 2024-04-26 | 浙江大华技术股份有限公司 | Control method of LED display screen and display screen group |
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| Publication number | Publication date |
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| CN109256084B (en) | 2023-11-14 |
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