CN103974059A - Method and jig for automatically detecting open pluggable interfaces of video output devices - Google Patents
Method and jig for automatically detecting open pluggable interfaces of video output devices Download PDFInfo
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- CN103974059A CN103974059A CN201310037183.XA CN201310037183A CN103974059A CN 103974059 A CN103974059 A CN 103974059A CN 201310037183 A CN201310037183 A CN 201310037183A CN 103974059 A CN103974059 A CN 103974059A
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Abstract
The invention discloses a method and a jig for automatically detecting open pluggable interfaces of video output devices. The method includes electrically coupling an open pluggable interface of a video output device to an open pluggable interface of the jig at first; enabling a video processing unit to receive an acknowledgement signal from the video output device after the jig is started up; then outputting a high-definition multimedia interface signal and a test signal to the open pluggable interface of the jig; requesting the video output device to transmit information via the open pluggable interface of the video output device; enabling the video processing unit to detect the open pluggable interface of the video output device and determine whether the open pluggable interface of the video output device is normal or not according to the information which is transmitted back to the video processing unit; outputting a screen display picture to the video output device and displaying a detection result. The jig further comprises the video processing unit which is electrically coupled with the open pluggable interface of the jig. The information is relevant to the received signals.
Description
Technical field
The present invention relates to a kind of detection method and tool, particularly relate to method and the tool of the open interface easy to plug of a kind of automatic detection.
Background technology
Existing plant produced line is produced the electronic bill-board with open interface easy to plug, in the time of the open interface easy to plug of detected electrons billboard, be to provide main frame with the existing billboard information with open interface easy to plug, such as personal computer, minicom, Set Top Box etc. detect.This kind of detection mode need to wait billboard information to provide main frame start complete, select each function choosing-item in screen display (OSD) interface with manual type again, to confirm one by one the whether normally start of signal pin of open interface easy to plug of electronic bill-board.And whenever having detected an electronic bill-board, need first billboard information to be provided main frame shutdown, the e-advertising bridge queen that the upper next one waiting is to be detected, again billboard information is provided again to main frame start, because the available machine time is of a specified duration, need to spend the more time detects, and because testing process cannot be got rid of human factor, therefore easily lacks accuracy.
Summary of the invention
The object of the present invention is to provide a kind of available machine time short and can automatically detect method and the tool of the open interface easy to plug of video output device.
The present invention detects the method for the open interface easy to plug of video output device automatically, comprise: (A) interface open easy to plug of this video output device is electrically coupled to an open interface easy to plug of a tool, this tool also comprise one with the video processing unit of the interface electric coupling open easy to plug of this tool; (B) make this tool start, this video processing unit of initialization; (C) this video processing unit is received after the confirmation signal from this video output device, produce a HDMI (High Definition Multimedia Interface) signal and export the interface open easy to plug of this tool to according to a signal of video signal of input, make this HDMI (High Definition Multimedia Interface) signal be sent to the interface open easy to plug of this video output device; (D) this video processing unit is exported the open easy to plug interface of a test signal to this tool, this test signal is sent to the interface open easy to plug of this video output device; (E) this video processing unit requires this video output device by the information of the signal correction of its open interface passback easy to plug and its reception; And the information that (F) this video processing unit returns according to the interface open easy to plug of this video output device, whether the interface open easy to plug that detects this video output device normal, and export an on-screen displays to this video output device with show testing result.
Preferably, in step (A), this tool also comprises the image input interface of this signal of video signal input of at least one confession, and this video processing unit comprise one with the convergent-divergent processor of the interface electric coupling open easy to plug of this image input interface and this tool, and one and the signal conversion unit of the interface electric coupling open easy to plug of this convergent-divergent processor and this tool; And in step (C), this convergent-divergent processor carries out convergent-divergent processing to produce a Low Voltage Differential Signal that meets the resolution of this video output device to this signal of video signal, and export this signal conversion unit to, make this signal conversion unit convert this Low Voltage Differential Signal to this HDMI (High Definition Multimedia Interface) signal.
Preferably, the interface open easy to plug of this tool mainly comprise one with this signal conversion unit electric coupling, to accept the HDMI (High Definition Multimedia Interface) signal input pin group of this HDMI (High Definition Multimedia Interface) signal input, one outputs signal to the signal output connecting pin group of this convergent-divergent processor, one accepts the signal input pin group from the test signal of this convergent-divergent processor, control command between the interface open easy to plug of this convergent-divergent processor and this tool and the RS-232 pin group of data are to and from one transmission, one accepts the audio frequency pin group from the simulated audio signal of this convergent-divergent processor, one be arranged on the USB3.0 connector electric coupling on this tool, with the USB3.0 signal pin group of transmission USB3.0 signal, one be arranged on the USB2.0 connector electric coupling on this tool, with the USB2.0 signal pin group of transmission USB2.0 signal, the power supply output connecting pin group of one out-put supply signal, an and power supply input pin group of accepting power supply input.
Preferably, in step (C), this confirmation signal is low level and inputs this convergent-divergent processor, and this convergent-divergent processor is received after this confirmation signal, can first judge that this confirmation signal maintains the low level time and whether is greater than a default value, if so, just judge that this confirmation signal is as true, and export this low-voltage differential signal to this signal conversion unit.
Moreover the tool of the open interface easy to plug of a kind of automatic detection video output device of realizing said method of the present invention, comprises open interface easy to plug and a video processing unit.The interface open easy to plug of this tool in order to the interface electric coupling open easy to plug of this video output device, the interface electric coupling open easy to plug of this video processing unit and this tool, and this video processing unit is received the confirmation signal from this video output device, meeting produces a HDMI (High Definition Multimedia Interface) signal according to a signal of video signal of input and exports the interface open easy to plug of this tool to, this HDMI (High Definition Multimedia Interface) signal is sent to the interface open easy to plug of this video output device; This video processing unit and output one test signal are to the interface open easy to plug of this tool, this test signal is sent to the interface open easy to plug of this video output device, and require this video output device by the information of the signal correction of its open interface passback easy to plug and its reception, this video processing unit the information returning according to the interface open easy to plug of this video output device, whether the interface open easy to plug that detects this video output device normal, and export an on-screen displays to this video output device with show testing result.
Preferably, this tool that automatically detects the open interface easy to plug of video output device also comprises the image input interface of this signal of video signal input of at least one confession, and this video processing unit comprise one with the convergent-divergent processor of the interface electric coupling open easy to plug of this image input interface and this tool, and one and the signal conversion unit of the interface electric coupling open easy to plug of this convergent-divergent processor and this tool, and this convergent-divergent processor carries out convergent-divergent processing to produce a Low Voltage Differential Signal that meets the resolution of this video output device to this signal of video signal, and export this signal conversion unit to, make this signal conversion unit convert this Low Voltage Differential Signal to this HDMI (High Definition Multimedia Interface) signal.
Preferably, the interface open easy to plug of this tool mainly comprise one with this signal conversion unit electric coupling, to accept the HDMI (High Definition Multimedia Interface) signal input pin group of this HDMI (High Definition Multimedia Interface) signal input, one outputs signal to the signal output connecting pin group of this convergent-divergent processor, one accepts the signal input pin group from the test signal of this convergent-divergent processor, control command between the interface open easy to plug of this convergent-divergent processor and this tool and the RS-232 pin group of data are to and from one transmission, one accepts the audio frequency pin group from the simulated audio signal of this convergent-divergent processor, one be arranged on the USB3.0 connector electric coupling on this tool, with the USB3.0 signal pin group of transmission USB3.0 signal, one be arranged on the USB2.0 connector electric coupling on this tool, with the USB2.0 signal pin group of transmission USB2.0 signal, the power supply output connecting pin group of one out-put supply signal, an and power supply input pin group of accepting power supply input.
Preferably, this image input interface at least comprise HDMI port, VGA port, USB2.0 port and optionally with the RS-232C connectivity port of this convergent-divergent processor electric coupling one of them.
Preferably, this confirmation signal is low level and inputs this convergent-divergent processor, and this convergent-divergent processor is received after this confirmation signal, can judge this confirmation signal maintain the low level time while being greater than a default value, just judge that this confirmation signal is as true, and export this low-voltage differential signal to this signal conversion unit.
Beneficial effect of the present invention is: automatically export test signal by tool the interface open easy to plug of video output device is detected automatically, and export a screen display (OSD) picture disply testing result, not only tool starting up speed is fast, can improve detection efficiency, and get rid of the uncertain factor detecting manually, can improve the accuracy of detection.
Brief description of the drawings
Fig. 1 is the circuit diagram of a preferred embodiment of the present invention's tool of automatically detecting the open interface easy to plug of video output device.
Fig. 2 is the flow chart of a preferred embodiment of the present invention's method of automatically detecting the open interface easy to plug of video output device.
Fig. 3 is the detail flowchart that the step S38 of Fig. 2 detects the open interface easy to plug of video output device.
Fig. 4 is the present embodiment shows testing result schematic diagram with on-screen displays.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Shown in Figure 1, the preferred embodiment that the present invention detects the method for the open interface easy to plug of video output device is automatically preparation one tool 2, this tool 2 mainly comprise one in order to the interface 20(open easy to plug of the tool 2 of open specification easy to plug (Open PluggableSpecification, hereinafter to be referred as an OPS) interface electric coupling (docking) of this video output device (not shown) hereinafter to be referred as OPS interface 20) and one and the video processing unit 200 of these OPS interface 20 electric couplings.Wherein video output device can be but be not limited to electronic bill-board, flat-panel screens or digital projector etc.
OPS interface 20 is a JAE-80P (having 80 pins) connector at the present embodiment, and in like manner, the OPS interface of video output device is another JAE-80P connector that can dock with OPS interface 20 equally.
And because meeting, 20 acceptance of OPS interface minimize transmission difference (TransitionMinimized Differential Signaling, hereinafter to be referred as TMDS) the electrical signal of specification, therefore, video processing unit 200 mainly converts a signal of video signal of input to a HDMI (High Definition Multimedia Interface) (High-Definition Multimedia Interface, hereinafter to be referred as HDMI) signal, export again OPS interface 20 to, make this HDMI signal be sent to the OPS interface of video output device.
When detecting the OPS interface of video output device, first by OPS interface 20 electric couplings of the OPS interface of video output device and tool 2, again tool 2 is started shooting, make initialization video processing unit 200, when video processing unit 200 completes initialization and receives after the confirmation signal from video output device, video processing unit 200 produces a HDMI signal and exports OPS interface 20 to according to a signal of video signal of input, makes this HDMI signal be sent to the OPS interface of video output device.Video processing unit 200 is also exported a test signal to OPS interface 20, make this test signal be sent to the OPS interface of video output device, then, video processing unit 200 requires video output device to pass through the information of the signal correction of its OPS interface passback and its reception, video processing unit 200 is again according to the information of this passback, whether the OPS interface that detects video output device is normal, and export a screen display (On ScreenDisplay, be called for short OSD) picture to video output device to show testing result.
Or rather, in the present embodiment, video processing unit 200 comprises a convergent-divergent processor (scaler) 21 and a signal conversion unit 22.Convergent-divergent processor (scaler) 21 mainly carries out convergent-divergent processing to the signal of video signal of input, meet the screen resolution of video output device and the low voltage difference of specification (Low-voltage differential signaling to produce one, hereinafter to be referred as LVDS) signal export signal conversion unit 22 to, by signal conversion unit 22, this LVDS signal is converted to after the HDMI signal that meets the electrical specification of TMDS again, export OPS interface 20 to.
Preferably, tool 2 also comprises at least one and convergent-divergent processor 21 electric couplings, and accept the image input interface of this signal of video signal input, such as HDMI port 31, VGA port 32, USB2.0 port 33 etc., and one optionally with the RS-232C connectivity port 34 of convergent-divergent processor 21 electric couplings.That is this signal of video signal can be from HDMI port 31, VGA port 32, USB2.0 port 33 and RS-232C connectivity port 34 one of them.
In addition, convergent-divergent processor 21 is also exported multiple test signals to OPS interface 20, makes to be sent to the OPS interface of video output device.This test signal includes but not limited to identification code, fan control signal, power state signal, simulated audio signal of tool 2 etc.
And OPS interface 20 mainly comprise one with signal conversion unit 22 electric couplings, to accept the HDMI signal input pin group P1 of HDMI signal input, one outputs signal to the signal output connecting pin group P2 of convergent-divergent processor 21, one accepts the signal input pin group P3 from the test signal of convergent-divergent processor 21, control command between convergent-divergent processor 21 and OPS interface 20 and the RS-232 pin group P4 of data are to and from one transmission, one accepts the audio frequency pin group P5 from the simulated audio signal (comprising left channel audio signal Audio-L and right channel audio signal Audio-R) of convergent-divergent processor 21, one be arranged on USB3.0 connector 35 electric couplings on tool 2, with the USB3.0 signal pin group P6 of transmission USB3.0 signal, one be arranged on USB2.0 connector 36 electric couplings on tool 2, with the USB2.0 signal pin group P7 of transmission USB2.0 signal, also has the power supply output connecting pin group P8 of an out-put supply signal (16V), an and power supply input pin group P9 who accepts power supply input.And above-mentioned " pin group " refers to and comprises more than one signal pin.
Wherein, the power supply of tool 2 is to be provided by video output device, after video output device docks with tool 2, give tool 2 via 16 volts of the power supply output connecting pin group P8 outputs of the OPS interface of tool 2, via the decompression converting circuit 24 on tool 2,16 volts are converted to after 5 volts again, input again the power supply input pin group P9 of OPS interface 20, to supply electric power via OPS interface 20 to the convergent-divergent processor 21 on tool 2, signal conversion unit 22 and other circuit.
Signal conversion unit 22 comprises in the present embodiment a LVDS and turns HDMI processor 25 and a Video segmentation device (splitter) 26, wherein to turn HDMI processor 25 be to adopt model IT6263FN integrated circuit to LVDS, it mainly changes into received LVDS signal the one HDMI signal that meets the electrical specification of TMDS, and export Video segmentation device (splitter) 26 to, after HDMI signal suitably being cut apart via Video segmentation device (splitter) 26 again, export the HDMI signal input pin group P1 of OPS interface 20 to.
In addition, convergent-divergent processor 21 can transmit order to video output device via the RS-232 pin group P4 of OPS interface 20, require video output device to return the specified data of this order, the relevant information of signal for example receiving with the OPS interface of video output device, convergent-divergent processor 21 according to this information, detect the whether normal start of OPS interface of video output device, and export a screen display (OSD) picture on video output device to show testing result.Below the tool 2 that further illustrates the present embodiment is detected to the detailed process of the OPS interface of video output device.
First, after the OPS interface of video output device to be detected is docked with the OPS interface 20 on tool 2, again tool 2 is started shooting, in tool 2 start process, in the lump referring to the step S31 of Fig. 1 and Fig. 2 flow chart, first tool 2 can initialization convergent-divergent processors 21 with GPIO pin (not shown) OPS interface 20 electric couplings, and enter step S32, forbid that convergent-divergent processor 21 exports LVDS signal, then, execution step S33, initializing signal converting unit 22, after completing boot program, as step S34, tool 2 control an indicator light (LED lamp) 27 send out a warning to inform operating personnel its at present at a holding state.
Then, when operating personnel operate video output device, while selecting to receive input signal by the OPS interface of video output device, video output device can transmit low level confirmation (PS-ON) signal to convergent-divergent processor 21 automatically by its OPS interface, now, as step S35, convergent-divergent processor 21 can judge that this confirmation signal maintains the low level time and whether is greater than a default value, for example 180ms, if, judge that this confirmation signal is as true, and carry out step S36, controlling indicator light 27 gives a green light, to notify operating personnel to be about to detect, convergent-divergent processor 21 allows output LVDS signal to signal conversion unit 22 simultaneously, make to export HDMI signal to video output device via OPS interface 20.And as shown in Figure 1, HDMI signal at least comprises HDMI_CEC signal, HDMI+DDC+HPD signal and DP (Display Port, display port) 1.1 signals, wherein (the Consumer Electronics C ontrol of the CEC in HDMI_CEC signal indication HDMI interface, consumer electronics control) signal, be used for transmitting the AV Link protocol signal of commercial size, to support many AV machines of single remote controller operation; HDMI is the TMDS signal representing in HDMI interface, transmits audio frequency, video and various auxiliary data; DDC is DDC (Display Data Channel, the display data channel) signal representing in HDMI interface, and transmission end and receiving terminal can utilize DDC to learn transmission and receiving ability each other; HPD is HPD (hot plug detect, the hot plug detecting) signal representing in HDMI interface.
Then, as step S37, convergent-divergent processor 21 is exported the signal input pin group P3 of test signal to OPS interface 20, make to input to video output device via the OPS interface of video output device, for example a low level fan control signal is delivered to the 50th pin of OPS interface 20, simulated audio signal Audio-L and Audio-R are delivered to respectively to the 69th of OPS interface 20, 70 pins, the power state signal PWR_STATUS signal of one high level is delivered to the 74th pin of OPS interface 20, and the identification code of tool 2 is delivered to a wherein pin etc. of signal input pin group P3.
Then, as step S38, convergent-divergent processor 21 sends order via the RS-232 pin group P4 of OPS interface 20, require video output device by the information of the signal correction of its OPS interface passback and its reception, then, as step S39, the information that convergent-divergent processor 21 is received according to OPS interface 20 again detects.Its detailed step is shown in Figure 3, first, as step S41, convergent-divergent processor 21 detects a JIG_DEF pin (not shown) and a HDCP_EN pin (not shown) wherein, to learn the test pattern (model type) of tool 2 and whether to support to detect HDCP function, and operator is the signal condition of the switch on tool 2 being made on/off and switches to change this JIG_DEF pin and HDCP_EN pin, to determine the test pattern of tool 2 and whether to support to detect HDCP function.
Then, because the power supply of tool 2 is to be provided by video output device, and an electric power detecting module 28 on tool 2 can and power supply output connecting pin group P8 electric coupling, to detect power supply output state.Therefore, as step S42, convergent-divergent processor 21 can read the signal from electric power detecting module 28, whether normal to detect input power, then, as step S43, read the signal of HDMI signal input pin group P1 OPS interface 20 and Video segmentation device 26 electric couplings signal conversion unit 22, to detect wherein transmitting extended display identification data (Extendeddisplay identification data, be called for short EDID) display data channel (DDC) pin whether normal, in the present embodiment, if convergent-divergent processor 21 is received an EDID address signal " 0xA1ACK ", display data channel (DDC) pin of OPS interface that represents video output device is normal, simultaneously, if the OPS interface of video output device has support HDCP, convergent-divergent processor 21 can detect again in the HDMI signal input pin group P1 of (reading) OPS interface 20 in order to transmit the signal of HDCP pin of HDCP signal, if convergent-divergent processor 21 is received a HDCP address signal " 0x75ACK ", the HDCP pin of OPS interface that represents video output device is normal.
Then, as step S44, convergent-divergent processor 21 can transmit order to video output device by the RS-232 pin group P4 of OPS interface 20, signal return one information that requires video output device to receive according to its OPS interface, for example frequency, the level of power state signal PWR_STATUS etc. of identification code, audio signal Audio-L and the Audio-R of the level of requirement passback fan signal, tool 2, differentiate the whether normal start of pin of the OPS interface of video output device whereby.
After end to be detected, as the step S40 of Fig. 2, convergent-divergent processor 21 can an output screen display (OSD) picture 50 as shown in Figure 4 to video output device to show testing result.Show and can see the test pattern (model type) of tool 2 and support HDCP to detect by Fig. 4, and the power pin group P8 of the OPS interface of video output device and/or P9 and HDMI pin group P1 (DDC line (EDID) and DDC line (HDCP)) are by detecting, the signal input pin group P3 (reception comprises the test signals such as fan control signal) of the OPS interface of video output device is not by detecting, therefore, testing result is not for passing through (NG).
Certainly, convergent-divergent processor 21 can be also that output screen shows that (OSD) picture shows the result of each detecting step one by one in testing process.
In addition, simplify manyly due to the circuit of tool 2 and the more general main frame of function, therefore more general main frame is short its available machine time, can improve detection efficiency.
In sum, the present embodiment is exported the OPS interface of test signal to video output device automatically by the video processing unit 200 of tool 2, require again video output device via its OPS interface passback information relevant to received signal, whether normal automatically to detect the OPS interface of video output device according to this back information, and export a screen display (OSD) picture disply testing result, can get rid of the uncertain factor detecting manually, improve the accuracy detecting, and the more general main frame of tool 2 starting up speed is fast, can improve detection efficiency, really reach effect of the present invention and object.
Claims (9)
1. a method that automatically detects the open interface easy to plug of video output device, is applicable to the interface open easy to plug of a video output device to detect, and it is characterized in that:
The method comprises:
(A) interface open easy to plug of this video output device is electrically coupled to an open interface easy to plug of a tool, this tool also comprise one with the video processing unit of the interface electric coupling open easy to plug of this tool;
(B) make this tool start, this video processing unit of initialization;
(C) this video processing unit is received after the confirmation signal from this video output device, produce a HDMI (High Definition Multimedia Interface) signal and export the interface open easy to plug of this tool to according to a signal of video signal of input, this HDMI (High Definition Multimedia Interface) signal is sent to the interface open easy to plug of this video output device;
(D) this video processing unit is exported the open easy to plug interface of a test signal to this tool, this test signal is sent to the interface open easy to plug of this video output device;
(E) this video processing unit requires this video output device by the information of the signal correction of its open interface passback easy to plug and its reception; And
(F) this video processing unit is according to the information of the interface passback open easy to plug of this video output device, whether the interface open easy to plug that detects this video output device normal, and export an on-screen displays to this video output device with show testing result.
2. the method for the open interface easy to plug of automatic detection video output device according to claim 1, it is characterized in that: in step (A), this tool also comprises the image input interface of this signal of video signal input of at least one confession, and this video processing unit comprise one with the convergent-divergent processor of the interface electric coupling open easy to plug of this image input interface and this tool, and one and the signal conversion unit of the interface electric coupling open easy to plug of this convergent-divergent processor and this tool; And in step (C), this convergent-divergent processor carries out convergent-divergent processing to produce a Low Voltage Differential Signal that meets the resolution of this video output device to this signal of video signal, and exporting this signal conversion unit to, this signal conversion unit converts this Low Voltage Differential Signal to this HDMI (High Definition Multimedia Interface) signal.
3. the method for the open interface easy to plug of automatic detection video output device according to claim 2, it is characterized in that: the interface open easy to plug of this tool comprise one with this signal conversion unit electric coupling, to accept the HDMI (High Definition Multimedia Interface) signal input pin group of this HDMI (High Definition Multimedia Interface) signal input, one outputs signal to the signal output connecting pin group of this convergent-divergent processor, one accepts the signal input pin group from the test signal of this convergent-divergent processor, one is transmitted in control command between the interface open easy to plug of this convergent-divergent processor and this tool and the RS-232 pin group of data, one accepts the audio frequency pin group from the simulated audio signal of this convergent-divergent processor, one be arranged on the USB3.0 connector electric coupling on this tool, with the USB3.0 signal pin group of transmission USB3.0 signal, one be arranged on the USB2.0 connector electric coupling on this tool, with the USB2.0 signal pin group of transmission USB2.0 signal, the power supply output connecting pin group of one out-put supply signal, an and power supply input pin group of accepting power supply input.
4. the method for the open interface easy to plug of automatic detection video output device according to claim 2, it is characterized in that: in step (C), this confirmation signal is low level and inputs this convergent-divergent processor, and this convergent-divergent processor is received after this confirmation signal, first judge that this confirmation signal maintains the low level time and whether is greater than a default value, if so, judge that this confirmation signal is as true, and export this low-voltage differential signal to this signal conversion unit.
5. a tool that automatically detects the open interface easy to plug of video output device, is applicable to the interface open easy to plug of a video output device to detect, and it is characterized in that:
This tool comprises:
The interface open easy to plug of one tool, in order to the interface electric coupling open easy to plug of this video output device; And
One video processing unit, interface electric coupling open easy to plug with this tool, and this video processing unit is received the confirmation signal from this video output device, meeting produces a HDMI (High Definition Multimedia Interface) signal according to a signal of video signal of input and exports the interface open easy to plug of this tool to, makes this HDMI (High Definition Multimedia Interface) signal be sent to the interface open easy to plug of this video output device; This video processing unit and output one test signal are to the interface open easy to plug of this tool, this test signal is sent to the interface open easy to plug of this video output device, and require this video output device by the information of the signal correction of its open interface passback easy to plug and its reception, this video processing unit is according to the information of the interface passback open easy to plug of this video output device, whether the interface open easy to plug that detects this video output device normal, and export an on-screen displays to this video output device with show testing result.
6. the tool of the open interface easy to plug of automatic detection video output device according to claim 5, it is characterized in that: this tool also comprises the image input interface of this signal of video signal input of at least one confession, and this video processing unit comprise one with the convergent-divergent processor of the interface electric coupling open easy to plug of this image input interface and this tool, and one and the signal conversion unit of the interface electric coupling open easy to plug of this convergent-divergent processor and this tool, and this convergent-divergent processor carries out convergent-divergent processing to produce a Low Voltage Differential Signal that meets the resolution of this video output device to this signal of video signal, and export this signal conversion unit to, make this signal conversion unit convert this Low Voltage Differential Signal to this HDMI (High Definition Multimedia Interface) signal.
7. the tool of the open interface easy to plug of automatic detection video output device according to claim 6, it is characterized in that: the interface open easy to plug of this tool comprise one with this signal conversion unit electric coupling, to accept the HDMI (High Definition Multimedia Interface) signal input pin group of this HDMI (High Definition Multimedia Interface) signal input, one outputs signal to the signal output connecting pin group of this convergent-divergent processor, one accepts the signal input pin group from the test signal of this convergent-divergent processor, one is transmitted in control command between the interface open easy to plug of this convergent-divergent processor and this tool and the RS-232 pin group of data, one accepts the audio frequency pin group from the simulated audio signal of this convergent-divergent processor, one be arranged on the USB3.0 connector electric coupling on this tool, with the USB3.0 signal pin group of transmission USB3.0 signal, one be arranged on the USB2.0 connector electric coupling on this tool, with the USB2.0 signal pin group of transmission USB2.0 signal, the power supply output connecting pin group of one out-put supply signal, an and power supply input pin group of accepting power supply input.
8. the tool of the open interface easy to plug of automatic detection video output device according to claim 6, is characterized in that: this image input interface at least comprise HDMI port, VGA port, USB2.0 port and optionally with the RS-232C connectivity port of this convergent-divergent processor electric coupling one of them.
9. the tool of the open interface easy to plug of automatic detection video output device according to claim 6, it is characterized in that: this confirmation signal is low level and inputs this convergent-divergent processor, and this convergent-divergent processor is received after this confirmation signal, when judging that this confirmation signal maintains the low level time while being greater than a default value, judge that this confirmation signal is as true, and export this low-voltage differential signal to this signal conversion unit.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104280639A (en) * | 2014-10-20 | 2015-01-14 | 北京空间机电研究所 | Test device and method of high-speed video bus connectors |
| CN104581147A (en) * | 2015-01-22 | 2015-04-29 | 福州瑞芯微电子有限公司 | HDMI and MIPI functions mutually testing method and device |
| CN112948186A (en) * | 2019-12-11 | 2021-06-11 | 海信视像科技股份有限公司 | Detection device and detection method of interface signal |
| CN116303147A (en) * | 2023-05-11 | 2023-06-23 | 合肥联宝信息技术有限公司 | Method and device for detecting external equipment of computer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280639A (en) * | 2014-10-20 | 2015-01-14 | 北京空间机电研究所 | Test device and method of high-speed video bus connectors |
| CN104280639B (en) * | 2014-10-20 | 2017-01-11 | 北京空间机电研究所 | Test device and method of high-speed video bus connectors |
| CN104581147A (en) * | 2015-01-22 | 2015-04-29 | 福州瑞芯微电子有限公司 | HDMI and MIPI functions mutually testing method and device |
| CN104581147B (en) * | 2015-01-22 | 2017-05-17 | 福州瑞芯微电子股份有限公司 | HDMI and MIPI functions mutually testing method and device |
| CN112948186A (en) * | 2019-12-11 | 2021-06-11 | 海信视像科技股份有限公司 | Detection device and detection method of interface signal |
| CN112948186B (en) * | 2019-12-11 | 2022-11-11 | 海信视像科技股份有限公司 | Detection device and detection method of interface signal |
| CN116303147A (en) * | 2023-05-11 | 2023-06-23 | 合肥联宝信息技术有限公司 | Method and device for detecting external equipment of computer |
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