CN206077615U - HDMI outut devices - Google Patents
HDMI outut devices Download PDFInfo
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- CN206077615U CN206077615U CN201621113418.4U CN201621113418U CN206077615U CN 206077615 U CN206077615 U CN 206077615U CN 201621113418 U CN201621113418 U CN 201621113418U CN 206077615 U CN206077615 U CN 206077615U
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- hdmi
- signal line
- electric capacity
- signal source
- differential signal
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Abstract
The utility model discloses a kind of HDMI outut devices, belong to circuit field.The outut device includes：Signal source, n groups differential signal line and HDMI, the input of n group differential signal lines are connected with signal source, and outfan is connected with HDMI, and every group of differential signal line includes the first holding wire and secondary signal line；It is in series with first holding wire of the least one set differential signal line in n group differential signal lines on the first electric capacity, and secondary signal line and is in series with the second electric capacity；The circuit being located between signal source and the first electric capacity on first holding wire is connected with power supply by first resistor；The circuit being located between signal source and the second electric capacity on secondary signal line is connected with power supply by second resistance.This utility model causes only to support that the signal source of direct-current coupling mode is realized being connected with display device using AC coupled mode, and being capable of normal output difference signal.When there are external exception signals, by the series capacitance isolation external exception signals on differential signal line, signal source is protected.
Description
Technical field
This utility model embodiment is related to circuit field, more particularly to a kind of HDMI outut devices.
Background technology
HDMI (High Definition Multimedia Interface, HDMI) is a kind of number
Word video/audio interfacing.HDMI can transmit audio and video frequency signal simultaneously, and the maximum data transmission speed is 4.5GB/S.
Fig. 1 shows a kind of structural representation of HDMI systems.The system includes：HDMI outut devices 120 and display set
Standby 140.Wherein, HDMI outut devices 120 include：Signal source 122 and HDMI 124, in signal source 122 and HDMI
There are at least 3 groups differential signal lines between 124, Fig. 1 schematically illustrates one of which differential signal line 123, two groups in addition
The structure of differential signal line is same, and HDMI 124 is connected with display device 140 again.In running, when display sets
When being connected with HDMI for 140, display device 140 can produce running voltage (such as 3.0V- on differential signal line 123
The voltage of 3.3V), after signal source 122 detects the running voltage, the first difference letter is exported from pin T+ according to the running voltage
Number, and the second differential signal is exported from pin T-；Then, display device 140 receives the first differential signal from pin R+, from drawing
Foot R- receives the second differential signal, and display device 140 calculates final difference according to the first differential signal and the second differential signal
Sub-signal.
Connected mode between signal source 122 and display device 140 has two kinds：Direct current (DC) coupled modes with exchange (AC)
Coupled modes.Using electric capacity not being in series with the differential signal line 123 of direct-current coupling mode, and adopt the difference of AC coupled mode
Electric capacity is in series with sub-signal line 123.That is, direct-current coupling mode is the connection between signal source 122 and display device 140 being
Straight-through connection, the DC component and AC compounent in the signal of the output of signal source 122 can be all transmitted to display device 140；And hand over
Stream coupled modes are that the connection between signal source 122 and display device 140 is in series with electric capacity, stop direct current point as electric capacity has
The ability of amount, so only AC compounent can be transmitted to display device 140 in the signal of the output of signal source 122.Illustrate in Fig. 1
Be direct-current coupling mode.Due to not being in series with electric capacity on the differential signal line using direct-current coupling mode, when there is electrical network ripple
During the external exception signals that the reasons such as dynamic, hot plug, electrostatic or HDMI wire loose contact are produced, 122 quilt of signal source is easily caused
External exception signals are damaged.
Utility model content
In order to solve the problems of the prior art, this utility model embodiment provides a kind of HDMI outut devices.It is described
Technical scheme is as follows：
First aspect, there is provided a kind of HDMI outut devices, the outut device include：Signal source, n group differential signal lines
And HDMI, the input of the n groups differential signal line is connected with the signal source, the output of the n groups differential signal line
End is connected with the HDMI, and every group of differential signal line includes the first holding wire and secondary signal line；
Is in series with first holding wire of differential signal line described in the least one set in the n groups differential signal line
The second electric capacity is in series with one electric capacity, and the secondary signal line；
Be located on first holding wire circuit between the signal source and first electric capacity by first resistor with
Power supply is connected；
Be located on the secondary signal line circuit between the signal source and second electric capacity by second resistance with
The power supply is connected；
Wherein, the first resistor and the second resistance are for after the supply voltage on the power supply is carried out blood pressure lowering being
The signal source is provided for running voltage required during output difference signal.
In an alternate embodiment of the invention, also include hot plug detection terminal in the HDMI, the outut device is also wrapped
Include：Controller and switch；
One end of the controller is connected with the hot plug detection terminal by hot plug detection line, the controller
The other end is connected with the control end of the switch；
One end of the switch is connected with the power supply, the other end of the switch respectively with the first resistor and described
Second resistance is connected；
The controller is more than after hot plug threshold value for the magnitude of voltage on the hot plug detection line is detected, time delay
The switch is set to into conducting state after scheduled duration T.
In an alternate embodiment of the invention, it is located between first electric capacity and the HDMI on first holding wire
Circuit is grounded by 3rd resistor；The circuit being located on the secondary signal line between second electric capacity and the HDMI
By the 4th resistance eutral grounding.
In an alternate embodiment of the invention, the 5th resistance, one end of the 5th resistance are additionally provided with first holding wire
It is connected with first electric capacity, the other end of the 5th resistance is connected with the HDMI；On the secondary signal line also
The 6th resistance is provided with, one end of the 6th resistance is connected with second electric capacity, the other end of the 6th resistance and institute
State HDMI to be connected.
In an alternate embodiment of the invention, the line being located on first holding wire between the signal source and first electric capacity
Road is also grounded by the first protection pipe；The circuit being located on the secondary signal line between the signal source and second electric capacity
Also it is grounded by the second protection pipe.Alternatively, first protection pipe and the second protection pipe are TVS pipes.
In an alternate embodiment of the invention, it is located between first electric capacity and the HDMI on first holding wire
Circuit is also grounded by the 3rd TVS pipe；It is located between second electric capacity and the HDMI on the secondary signal line
Circuit is also grounded by the 4th TVS pipe.Alternatively, the 3rd protection pipe and the 4th protection pipe are TVS pipes.
In an alternate embodiment of the invention, the signal source itself is not provided for exporting work required during the differential signal
Make the signal source of voltage.
In an alternate embodiment of the invention, the n groups differential signal line includes：Three groups of TMDS differential signal lines and one group of clock difference
Sub-signal line.
The beneficial effect brought of technical scheme that this utility model embodiment is provided is：
Outside electric capacity being in series with differential signal line, will also be located at signal source and the first electric capacity on the first holding wire
Between circuit be connected with power supply by first resistor, and on secondary signal line, be located at line between signal source and the second electric capacity
Road is connected with power supply by second resistance, the supply voltage on power supply is carried out after blood pressure lowering for letter by first resistor and second resistance
Number source provides running voltage required during output difference signal；So that can not only for the signal source that itself does not provide running voltage
Enough according to the normal output difference signal of the running voltage, and can also realize being connected with display device using AC coupled mode.
When there are external exception signals, by all or part of external exception signals of series capacitance isolation on differential signal line, to letter
Number source is protected.
Description of the drawings
For the technical scheme being illustrated more clearly that in this utility model embodiment, below will be to needed for embodiment description
Accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of the HDMI systems provided in prior art.
Fig. 2 is a kind of principle schematic of HDMI systems that this utility model embodiment is provided.
Fig. 3 is the structural representation of the HDMI outut devices that this utility model one embodiment is provided.
Fig. 4 is the structural representation of the HDMI outut devices that this utility model another embodiment is provided.
Specific embodiment
It is to make the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing
Type embodiment is described in further detail.
Fig. 2 is refer to, the principle schematic of the HDMI systems of this utility model one embodiment offer is provided.Should
HDMI systems include：HDMI outut devices 220 and display device 240.
HDMI outut devices 220 can be that video disc player, Blu-ray player, computer, video monitoring equipment etc. have audio frequency and video
The equipment of fan-out capability.HDMI outut devices 220 include signal source 222.Signal source 222 be for exports audio signal and/or
The module of video signal.
HDMI outut devices 220 are connected with display device 240 by HDMI 230.
Display device 240 is liquid crystal display or projector.Display device 240 includes HDMI receiving terminals 242.HDMI connects
Receiving end 242 is used for the audio signal and/or video signal that the output of signal source 222 is received by HDMI 230.
HDMI 230 includes：Clock lane clock, TMDS (Transition Minimized Differential
Signaling, minimize differential signal transmission) passage 0, TMDS passages 1, TMDS passages 2, DDC DDC
(Display Data Channel) and detection line 23.Wherein：
Clock lane clock includes one group of clock differential signal line for transmitting clock signal.
TMDS passages 0 include one group of TMDS differential signal line for transmitting audio/video signal.
TMDS passages 1 include one group of TMDS differential signal line for transmitting audio/video signal.
TMDS passages 2 include one group of TMDS differential signal line for transmitting audio/video signal.
That is, HDMI 230 includes four groups of differential signal lines.
Display device 240 can also include EDID (Extended Display Identification Data
Standard, expanded display recognition data standard) memorizer 244, the display device 240 that is stored with of EDID memorizeies 244 supported
Image resolution ratio, support audio format, support sound channel, whether support the performance datas such as 3D.DDC
For the performance data in EDID memorizeies 244 is transferred to HDMI outut devices 220, so that HDMI outut devices 220 are exported
The audio signal and/or video signal of matching.
HDMI outut devices 220 can be connected by holding wire with display device 240, and the holding wire is properly termed as hot plug inspection
Survey line 23.Hot plug detection line 23 is also known as HPD (Hot Plug Detection, hot plug detection) line.HDMI outut devices 220
After being connected with display device 240, display device 240 can by the voltage in hot plug detection line 23 be pulled to hot plug threshold value with
On, hot plug threshold value can be 2V.
After electricity in HDMI outut devices 220, HDMI outut devices 220 can detect that the voltage in hot plug detection line 23 is
It is no more than default hot plug threshold value, such as 2V；If being more than 2V, then it is assumed that be connected with display device 240.HDMI outut devices
220 read the performance data in EDID memorizeies 244 by DDC, with determine that display device 240 supported point
Resolution.If being connected using direct-current coupling mode between HDMI outut devices 220 and display device 240, display device 240 can be to
Four groups of differential signal lines are provided for the running voltage needed for output difference signal, and the running voltage can be the electricity of 3.0V or so
Pressure.
When the voltage that HDMI outut devices 220 are detected on differential signal line reaches running voltage, in differential signal line
It is upper to be based on running voltage output difference signal.According to different designs, some HDMI outut devices 220 are detecting all four groups
When voltage on differential signal line reaches running voltage, output difference signal；Other HDMI outut devices 220 have to inspection
When measuring the voltage on the differential signal line in clock lane Clock and reaching running voltage, ability output difference signal；Other
As long as HDMI outut devices 220 detect the voltage on a certain group of differential signal line when reaching running voltage, i.e., in this group of difference
Output difference signal on holding wire.
As the running voltage on differential signal line is provided by display device 240, signal source 222 is not provided for defeated itself
Go out running voltage required during differential signal, if by the connected mode between signal source 222 and display device 240 from direct-current coupling
Mode is directly revised as AC coupled mode, then the electric capacity being arranged on differential signal line can stop the offer of display device 240
Running voltage, causes the signal source 222 cannot be according to running voltage to 240 output difference signal of display device.In order that itself
The signal source 222 for not providing running voltage also can be connected with display device 240 using AC coupled mode, and this utility model is carried
It is provided with following examples.
Fig. 3 is refer to, the structural representation of the HDMI outut devices 220 of this utility model one embodiment offer is provided
Figure.The HDMI outut devices 220 include：Signal source 222, n group differential signal lines (show schematically one group of differential signal in figure
223) and HDMI 224 line.
The input of n groups differential signal line 223 is connected with signal source 222, the outfan of n groups differential signal line 223 with
HDMI 224 is connected, and every group of differential signal line 223 includes the first holding wire and secondary signal line.
Wherein, the input of the first holding wire is connected with the pin T+ of signal source 222, input and the letter of secondary signal line
The pin T- in number source 222 is connected.The outfan of the first holding wire is by the pin R+ phases on HDMI 224 and display device
Even, the outfan of secondary signal line is connected with the pin R- on display device by HDMI 224.
N is integer.Schematically, n=4.
Alternatively, it is electric first to be in series with the first holding wire of the least one set differential signal line in four groups of differential signal lines
Hold and the second electric capacity C2 is in series with C1, and secondary signal line, realize signal source 222 and HDMI in AC coupled mode
224 are connected.
The circuit being located on first holding wire between signal source 222 and the first electric capacity C1 passes through first resistor R1 and power supply
VCC is connected；The circuit between signal source 222 and the second electric capacity C2 is located on secondary signal line and also passes through second resistance R2 and power supply
VCC is connected.
Wherein, first resistor R1 and second resistance R2 are for carrying out being signal after blood pressure lowering the supply voltage on power supply VCC
Required running voltage when source 222 provides output difference signal.In various embodiments, the running voltage is also referred to as：Benchmark
Voltage or bias voltage.Schematically, the voltage of power supply VCC is 3.3V, and running voltage is 3.0V.
In sum, the HDMI outut devices that the present embodiment is provided, outside being in series with electric capacity on differential signal line,
Also the circuit being located between signal source and the first electric capacity on the first holding wire is connected with power supply by first resistor, and second
The circuit being located between signal source and the second electric capacity on holding wire is connected with power supply by second resistance, by first resistor and second
Supply voltage on power supply is carried out resistance the running voltage after blood pressure lowering for needed for when signal source provides output difference signal；So that
The signal source for itself not providing running voltage according to the normal output difference signal of the running voltage, and can not only can also be realized
It is connected with display device using AC coupled mode.When there are external exception signals, by the series capacitance on differential signal line
The all or part of external exception signals of isolation, protect to signal source.
Fig. 4 is refer to, the structural representation of the HDMI outut devices 220 of this utility model one embodiment offer is provided
Figure.The HDMI outut devices 220 include：Signal source 222, n group differential signal lines (show schematically one group of differential signal in figure
223) and HDMI 224 line.
From unlike Fig. 3 embodiments, in HDMI 224, also include hot plug detection terminal (not shown), should
HDMI outut devices 220 also include：Controller 226 and switch K；
One end of controller 226 is by the hot plug test side in hot plug detection line, i.e. HPD lines, with HDMI 224
Son is connected, and the hot plug detection terminal in HDMI 224 is connected with display device by another HPD line, controller 226
The other end is connected with the control end of switch K.
Switch K one end be connected with power supply VCC, switch K the other end respectively with first resistor R1 and second resistance R2 phase
Even.
When HDMI outut devices 220 are not connected with display device, the voltage signal on HPD lines is less than voltage threshold, example
0.8V, switchs K and is off in this way；Voltage meeting when HDMI outut devices 220 are connected with display device, on HPD lines
More than hot plug threshold value, the hot plug threshold value can be 2V, that is, the voltage on HPD lines can be shown equipment be pulled to 2V with
On, and then being exported to controller by the HDP lines being connected with hot plug detection terminal, controller 226 is for detecting HPD lines
On voltage more than after hot plug threshold value, switch K is set to into conducting state after time delay scheduled duration T.Alternatively, T is
200ms。
When switching K and being in the conduction state, the voltage on power supply VCC passes through first resistor R1 and the blood pressure lowering of second resistance R2
Afterwards, running voltage is produced on differential signal line so that signal source 222 being capable of normal output difference signal.
Wherein, the reason for time delay scheduled duration T it is：When HDMI outut devices 220 pass through HDMI 224 and display device
When carrying out initial physical connection, as display device and HDMI outut devices 220 are two different equipment, according to respective electricity
The difference of road design, the ground voltage of the ground voltage and HDMI outut devices 220 of display device is probably different so that aobvious
Show that voltage of the equipment on differential signal line 223 has current potential with voltage of the HDMI outut devices 220 on differential signal line 223
Difference, the potential difference can cause of short duration abnormal current, and then the potential difference disappears and the ground voltage on two equipment is changed into phase
Together, the abnormal current may produce destruction to signal source 222.As abnormal current is to the signal source 222 of off working state
Destructive power of the destructive power less than the signal source 222 to working condition, so needing to allow signal source at the initial physical connection moment
222 are maintained at off working state.Working condition refers to signal source 222 to the state of display device output difference signal, inoperative
State refers to signal source 222 not to the state (such as holding state) of display device output difference signal.
Signal source 222 is in running order to be needed to meet two conditions simultaneously：First, the voltage in detection line HPD is more than
Hot plug threshold value 2V, second, there is running voltage on differential signal line.Voltage of the present embodiment controller in detection line HPD
After more than hot plug threshold value 2V, then time delay scheduled duration T (according to the duration set by the executeaaafunction that potential difference disappears), treat this
Potential difference disappear and will not again exception throw electric current when, then by switch K be set to conducting state, work is produced on differential signal line
Make voltage so that signal source 222 switches to working condition from off working state, abnormal current can be avoided to a certain extent to letter
The impact in number source 222, realizes the protection to signal source 222.
Alternatively, the circuit being located on the first holding wire between the first electric capacity C1 and HDMI 224 is also electric by the 3rd
Resistance R3 ground connection；The circuit being located between the second electric capacity C2 and HDMI 224 on secondary signal line is also connect by the 4th resistance R4
Ground.
Alternatively, the 5th resistance R5, one end of the 5th resistance R5 and the first electric capacity C1 phases are additionally provided with the first holding wire
Even, the other end of the 5th resistance R5 is connected with HDMI 224；The 6th resistance R6 is additionally provided with secondary signal line, the 6th is electric
One end of resistance R6 is connected with the second electric capacity C2, and the other end of the 6th resistance is connected with HDMI 224.
Alternatively, the circuit between signal source 222 and the first electric capacity C1 is located on the first holding wire also by the first protection
Pipe 1 is grounded；The circuit being located between signal source 222 and the second electric capacity C2 on secondary signal line is also grounded by the second protection pipe 2.
Alternatively, the first protection pipe and the second protection pipe are TVS (Transient Voltage Suppressor, transient state suppress) two poles
Pipe.
Alternatively, the circuit being located on the first holding wire between the first electric capacity C1 and HDMI 224 is also protected by the 3rd
Pillar is grounded；The circuit being located between the second electric capacity C2 and HDMI 224 on secondary signal line is also connect by the 4th protection pipe
Ground.3rd protection pipe and the 4th protection pipe are not shown in figure.Alternatively, the 3rd protection pipe and the 4th protection pipe are bis- poles of TVS
Pipe.
Alternatively, signal source 222 is itself not provide the signal source for running voltage required during output difference signal.
In sum, the HDMI outut devices that the present embodiment is provided, outside being in series with electric capacity on differential signal line,
Also the circuit being located between signal source and the first electric capacity on the first holding wire is connected with power supply by first resistor, and second
The circuit being located between signal source and the second electric capacity on holding wire is connected with power supply by second resistance, by first resistor and second
Supply voltage on power supply is carried out resistance the running voltage after blood pressure lowering for needed for when signal source provides output difference signal；So that
The signal source of the running voltage itself not provided can not only be according to the normal output difference signal of the running voltage, and also can
Realization is connected with display device using AC coupled mode.When there are external exception signals, by the series connection on differential signal line
Capacitor apart all or part external exception signals, protect to signal source.
The HDMI outut devices that the present embodiment is provided, also by arranging 3rd resistor R3 and the 4th resistance R4, realize to aobvious
Show the impedance matching of equipment, to guarantee that the running voltage exported by the pin R+ and pin R- of display device is advised in HDMI agreements
In fixed voltage range.Such as, the display device is the display device for supporting direct-current coupling, and the display device is defeated on holding wire
The running voltage for going out is maximum 3.3V, and 3rd resistor R3 and the 4th resistance R4 make the running voltage be pulled down to 3.0V or so.
The HDMI outut devices that the present embodiment is provided, also by the first electric capacity C1 and the second electric capacity C2 to low frequency surging signal
High resistant characteristic, realize isolation to low frequency surging signal；In addition, also being made by the current limliting of the 5th resistance R5 and the 6th resistance R6
With, it is to avoid impact of the high current produced on differential signal line to signal source, so as to realize to various external exception signals every
From.
The HDMI outut devices that the present embodiment is provided, are also released energy by the high current of the 3rd protection pipe and the 4th protection pipe
The abnormal signal, when there are the external exception signals of high current, is released to ground by the 3rd protection pipe and the 4th protection pipe by power,
Realize the protection to signal source.But as the 3rd protection pipe and the 4th protection pipe are near HDMI, directly it is subject to outside abnormal
The impact of signal, so the 3rd protection pipe and the 4th protection pipe are easy to breakdown and cause to damage.
The HDMI outut devices that the present embodiment is provided, also by arranging the first protection pipe and the second protection pipe, due to first
, closer to signal source, it is electric that the external exception signals from display device side have already been through first for protection pipe and the second protection pipe
Hold C1, the 5th resistance R5, a certain degree of protection of the second electric capacity C2 and the 6th resistance R6 so that the first protection pipe and second is protected
Pillar is not easy to be damaged, and realizes to the more preferable protection of signal source.
Above-mentioned this utility model embodiment sequence number is for illustration only, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
To complete, it is also possible to instruct the hardware of correlation to complete by program, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read only memory, disk or CD etc..
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of HDMI outut devices, it is characterised in that the outut device includes：Signal source, n groups differential signal line and HDMI
Interface, the input of the n groups differential signal line are connected with the signal source, the outfan of the n groups differential signal line and institute
State HDMI to be connected, every group of differential signal line includes the first holding wire and secondary signal line；
First is in series with first holding wire of differential signal line described in the least one set in the n groups differential signal line electric
Hold, and the second electric capacity is in series with the secondary signal line；
The circuit being located on first holding wire between the signal source and first electric capacity passes through first resistor and power supply
It is connected；
Be located on the secondary signal line circuit between the signal source and second electric capacity by second resistance with it is described
Power supply is connected；
Wherein, the first resistor and the second resistance are for being described after the supply voltage on the power supply is carried out blood pressure lowering
Signal source provides running voltage required during output difference signal.
2. outut device according to claim 1, it is characterised in that also include hot plug test side in the HDMI
Son, the outut device also include：Controller and switch；
One end of the controller is connected with the hot plug detection terminal by hot plug detection line, the controller it is another
End is connected with the control end of the switch；
One end of the switch is connected with the power supply, the other end of the switch respectively with the first resistor and described second
Resistance is connected；
For the magnitude of voltage on the hot plug detection line is detected more than after hot plug threshold value, time delay makes a reservation for the controller
The switch is set to into conducting state after duration T.
3. outut device according to claim 1, it is characterised in that
The circuit being located on first holding wire between first electric capacity and the HDMI is grounded by 3rd resistor；
The circuit being located on the secondary signal line between second electric capacity and the HDMI passes through the 4th resistance eutral grounding.
4. outut device according to claim 1, it is characterised in that
Fiveth resistance is in series with first holding wire also, one end of the 5th resistance is connected with first electric capacity, institute
The other end for stating the 5th resistance is connected with the HDMI；
Sixth resistance is in series with the secondary signal line also, one end of the 6th resistance is connected with second electric capacity, institute
The other end for stating the 6th resistance is connected with the HDMI.
5. outut device according to claim 1, it is characterised in that
The circuit being located between the signal source and first electric capacity on first holding wire is also connect by the first protection pipe
Ground；
The circuit being located between the signal source and second electric capacity on the secondary signal line is also connect by the second protection pipe
Ground.
6. outut device according to claim 1, it is characterised in that
The circuit between first electric capacity and the HDMI is located on first holding wire and also passes through the 3rd protection pipe
Ground connection；
The circuit between second electric capacity and the HDMI is located on the secondary signal line and also passes through the 4th protection pipe
Ground connection.
7. according to the arbitrary described outut device of claim 1 to 6, it is characterised in that the signal source is that itself does not provide use
The signal source of required running voltage when the differential signal is exported.
8. according to the arbitrary described outut device of claim 1 to 6, it is characterised in that the n groups differential signal line includes：Three
Group TMDS differential signal lines and one group of clock differential signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113418.4U CN206077615U (en) | 2016-10-11 | 2016-10-11 | HDMI outut devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113418.4U CN206077615U (en) | 2016-10-11 | 2016-10-11 | HDMI outut devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077615U true CN206077615U (en) | 2017-04-05 |
Family
ID=58442015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113418.4U Active CN206077615U (en) | 2016-10-11 | 2016-10-11 | HDMI outut devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114461555A (en) * | 2021-12-30 | 2022-05-10 | 曙光信息产业股份有限公司 | Interface circuit and mainboard |
-
2016
- 2016-10-11 CN CN201621113418.4U patent/CN206077615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114461555A (en) * | 2021-12-30 | 2022-05-10 | 曙光信息产业股份有限公司 | Interface circuit and mainboard |
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