CN205792967U - Signal extension fixture and integration display - Google Patents
Signal extension fixture and integration display Download PDFInfo
- Publication number
- CN205792967U CN205792967U CN201620519994.2U CN201620519994U CN205792967U CN 205792967 U CN205792967 U CN 205792967U CN 201620519994 U CN201620519994 U CN 201620519994U CN 205792967 U CN205792967 U CN 205792967U
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Dc Digital Transmission (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
This application discloses signal extension fixture and integration display, signal extension fixture includes sending module and receiver module, also include the two transmission lines cables being connected between described sending module and described receiver module, two transmission lines cables are independent of one another, wherein a transmission lines cable transmits power supply signal between described sending module and described receiver module, and another transmission lines cable transmits earth signal between described sending module and described receiver module.The application while not affecting the transmission performance of the transmitted signal of signal extension fixture, can transmit the power supply signal of more power.
Description
Technical field
The application relates to network layout technology, particularly relates to signal extension fixture and integration display.
Background technology
At present, some application scenarios need high definition computer monitor and USB peripheral are extended to user operation
Far-end, for realizing this function, it usually needs host computer side increase a prolongation emitter, and with
Family operation far-end increases a prolongation receptor, extends emitter and extends employing transmission line between receptor
Cable is connected.Extend the video signal of transmitter receipt host computer video card output, video signal usually number
Word DVI signal (Digital Visual Interface, digital visual interface) or HDMI signal (High
Definition Multimedia Interface, a kind of numeral of HDMI Licensing, LLC organization definition
Change video/audio coffret, the digital video without compression and voice data stream can be transmitted simultaneously).Far
The prolongation receptor of end, externally provides DVI or HDMI connecting display.
In above-mentioned framework, when signal extension fixture realizes remote power feeding, can be by extending emitter and prolongation
A transmission cable transmitted in both directions power supply signal between receptor and earth signal, it is achieved remote power feeding.
But, above-mentioned remote power feeding mode is big to the Power Limitation of power supply signal, can only transmit lower-wattage
Power supply signal, it is impossible to meet high-power power demands.
Utility model content
The application provides signal extension fixture and integration display, powers solving prior art medium-long range
In mode, the Power Limitation to power supply signal is big, can only transmit the power supply signal of lower-wattage, it is impossible to meet
The problem of high-power power demands.
First aspect according to the embodiment of the present application, it is provided that a kind of signal extension fixture, including sending module
And receiver module, also include two transmission lines being connected between described sending module and described receiver module
Cable, two transmission lines cables are independent of one another, and wherein a transmission lines cable is in described sending module and described reception
Transmit power supply signal between module, another transmission lines cable described sending module and described receiver module it
Between transmit earth signal.
In one embodiment, in described power supply signal and earth signal, at least one signal takies alone transmission
A pair core transmission of cable.
In one embodiment, the signal of at least one transmission cable transmission also includes two-forty signal, institute
State two-forty signal to transmit with differential signalling form；
In described power supply signal and earth signal, at least one signal is as common-mode signal and described two-forty signal
It is multiplexed into difference common-mode signal.
In one embodiment, described two-forty signal includes multi-media signal, described multi-media signal bag
Include following any one: HDMI signal, DVI signal, DP signal；
A signal in described power supply signal and earth signal and described multi-media signal are multiplexed into difference common mode
Signal.
In one embodiment, described two-forty signal also includes high speed USB signal, described high speed USB
Signal includes USB2.0 signal；Described high speed USB signal from described multi-media signal by different biographies
Defeated cable transmission；
Described power supply signal becomes with described high speed USB signal multiplexing with a signal in described earth signal
A pair core transmission is transmitted or taken alone to difference common-mode signal.
In one embodiment, described sending module or described receiver module include that USB2.0 signal is changed
Unit, for USB1.0 signal is converted into USB2.0 signal, or is converted into USB2.0 signal
USB1.0 signal.
In one embodiment, described sending module and described receiver module include a USB2.0 respectively
Extending controller, described USB2.0 extends controller and is connected with described USB2.0 signal conversion unit, uses
Amplify in USB2.0 signal being carried out equilibrium and drive enhancing.
In one embodiment, the core quantity of transmission cable of described high speed USB signal is transmitted at least
2；The core quantity of the transmission cable transmitting described multi-media signal is at least 8.
In one embodiment, described sending module or described receiver module include difference common mode frequency division multiplexing
Network, for becoming described difference by described power supply signal or described earth signal with described two-forty signal multiplexing
Issue transmission cable after common-mode signal, maybe the described difference common-mode signal received by transmission cable is demultiplexed
With.
In one embodiment, described sending module also includes that host power supply interface, described host power supply connect
Mouth is connected with host power supply, for the DC power signal that host power supply exports is input to transmission power supply letter
Number transmission cable.
In one embodiment, described sending module also includes that protection circuit, described protection circuit are arranged at
Between described host power supply interface and described difference common mode frequency division multiplexing network；
Described protection circuit includes one or more in circuits below:
Overvoltage crowbar, under-voltage protecting circuit, current foldback circuit and intersection line sequence protection circuit.
In one embodiment, the signal of the transmission cable transmission transmitting described multi-media signal also includes low
Rate signal, described low-rate signal is multiplexed into difference common mode as common-mode signal and described multi-media signal
Signal；
Described sending module and described receiver module respectively further comprise a common-mode signal and drive/receive circuit,
Two common-mode signals drive/receive circuit to be sent to described reception mould for sending module described in one-way conduction
First common mode half-duplex channel of the low-rate signal of block, or receiver module described in one-way conduction is sent to described
Second common mode half-duplex channel of the low-rate signal of sending module.
In one embodiment, described sending module also includes the first process circuit, for believing low rate
Number carry out framing, and the low-rate signal after framing is issued described first common mode half-duplex channel, or will be from
Low-rate signal after the framing that described second common mode half-duplex channel receives carries out solving frame；
Described receiver module also includes the second process circuit, for receiving from described first common mode half-duplex channel
To framing after low-rate signal carry out solving frame, or issue described the after low-rate signal is carried out framing
Two common mode half-duplex channels.
In one embodiment, described common-mode signal drive/receive circuit include low-rate signal transtation mission circuit,
Low-rate signal receives circuit and analog switch；
The public input/output end port of described analog switch respectively with described first common mode half-duplex channel and institute
State the second common mode half-duplex channel to connect, signal input part and the outfan of described low-rate signal transtation mission circuit
Connecting, the input that signal output part receives circuit with described low-rate signal is connected；
The input of described low-rate signal transtation mission circuit and described low-rate signal receive the outfan of circuit
Process circuit respectively with described first or described second process circuit is connected.
In one embodiment, described receiver module also includes voltage conversion circuit, for power supply signal
Carry out voltage conversion, generate and be powered the power supply signal of the voltage matches of equipment.
In one embodiment, every transmission lines cable includes being positioned at outermost restrictive coating, described restrictive coating
Being connected by thin layer gluing, described thin layer and described restrictive coating are one-body molded.
Another aspect according to the embodiment of the present application, it is provided that a kind of integration display, including display originally
Body and supporting part, include display circuit module, in described monitor body inside described monitor body
Portion also include above-described receiver module, described receiver module also include multi-media signal output interface and
Power supply signal output interface；
Described monitor body or described supporting part include two cable interfaces, and described receiver module leads to respectively
Cross two cable interfaces to be connected with described first transmission cable and described second transmission cable；
Described display circuit module includes multi-media signal interface, with described multi-media signal output interface
It is connected；
Described monitor body or described supporting part also include power interface, are connected to described power supply signal defeated
Between outgoing interface and described display circuit module.
The signal extension fixture of the application transmits power supply signal and ground respectively by two different transmission cables
Signal, can transmit higher while not affecting the transmission performance of the transmitted signal of signal extension fixture
The power supply signal of power.
By the integrated display of the application, integration display is no longer necessary to independently installed prolongation and receives
Device and display, difficulty of construction is greatly reduced.It is aobvious that all peripheral hardware cables all can be connected to place integration
Showing on device desktop, each class interface and button that integration display carries can be placed in integration display
Monitor body or supporting part, connect and become very simple, and be easy to routine use operation and safeguard, also
The prolongation power supply adaptor of receptor, device housings and HDMI/DVI cable can be saved, can effectively drop
Low cost.
Accompanying drawing explanation
Fig. 1 is an embodiment block diagram of the application signal extension fixture；
Fig. 2 a is another embodiment block diagram of the application signal extension fixture；
Fig. 2 b is another embodiment block diagram of the application signal extension fixture；
Fig. 3 is the embodiment electricity that the common-mode signal of the application signal extension fixture drove/received circuit
Line structure figure；
Fig. 4 is of the first/the 3rd difference common mode frequency division multiplexing network of the application signal extension fixture
Embodiment electrical block diagram；
Fig. 5 is of the second/the 4th difference common mode frequency division multiplexing network of the application signal extension fixture
Embodiment electrical block diagram；
Fig. 6 is an embodiment block diagram of the sending module of the application signal extension fixture；
Fig. 7 is an embodiment electrical block diagram of the sending module of the application signal extension fixture；
Fig. 8 is an embodiment electrical block diagram of the receiver module of the application signal extension fixture；
Fig. 9 is an example structure schematic diagram of the application integration display；
Figure 10 is an embodiment logical structure of the display circuit module of the application integration display
Block diagram；
Figure 11 is an embodiment appearance front view of the application integration display；
Figure 12 is an embodiment appearance rearview of the application integration display.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Following
When description relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous
Key element.Embodiment described in following exemplary embodiment does not represent the institute consistent with the application
There is embodiment.On the contrary, they only with as appended claims describes in detail, the one of the application
The example of the apparatus and method that a little aspects are consistent.
It is only merely for describing the purpose of specific embodiment at term used in this application, and is not intended to be limiting
The application." a kind of ", " described " of singulative used in the application and appended claims
" it is somebody's turn to do " be also intended to include most form, unless context clearly shows that other implications.
Refer to the embodiment block diagram that Fig. 1, Fig. 1 are the application signal extension fixture:
As it is shown in figure 1, the signal extension fixture of the present embodiment can include sending module 10 and receiver module
20, by the first transmission cable 30 and the second transmission cable between sending module 10 and receiver module 20
40 connect, and the first transmission cable 30 and the second transmission cable 40 are independent of one another, the first transmission cable 30
Transmitting power supply signal between sending module 10 and receiver module 20, the second transmission cable 40 is sending mould
Earth signal is transmitted between block 10 and receiver module 20.First transmission cable 30 and the second transmission cable 40
Outermost layer can be respectively provided with restrictive coating, mutually isolated to realize.Two pieces points can be shown as in appearance
From cable, it is also possible to show as the cable connected as one by a junction, such as, can pass through thin layer
Glued connection, utilizes thin layer and restrictive coating to be designed to integral structure.
In order to reduce interfering of signal between two transmission lines cables, the first transmission cable 30 and the second transmission
In cable 40, at least one transmission cable can be twisted-pair cable.Twisted-pair cable more typically can be tool
There is single-core cable (such as, CAT5, CAT5e, CAT6, the CAT7 or similar of multiple twisted-pair feeder pair
The cable of model), each twisted-pair feeder is to including two wires.
When realizing remote power feeding, the power supply signal of signal extension fixture one end or earth signal can be by multiple
Mode is transferred to opposite end.Such as, in some example, if the first transmission cable 30 and the second transmission electricity
In cable 40, on a transmission cable, the signal of transmission includes two-forty signal, and two-forty signal is believed with difference
Number form transmission, then can using a signal in power supply signal or earth signal as common-mode signal, with
Two-forty signal is combined into difference common-mode signal, one pair of which core transmission in common transmitted cable.Example again
As, if the signal of transmission all includes that two-forty is believed on the first transmission cable 30 and the second transmission cable 40
Number, then power supply signal and one of which two-forty signal can be combined into difference common-mode signal, earth signal
Transmit after being combined into difference common-mode signal with another kind of two-forty signal.Certainly, earth signal or power supply signal
A pair core transmission of described transmission cable can also be taken the most alone；Or earth signal or power supply signal
In one of them takies alone a pair core transmission of described transmission cable, another is multiple with two-forty signal
Transmit after synthesis difference common-mode signal.Easy to understand, the mode of multiplexing of transmission can reduce required core
Quantity, advantageously reduces cost, and the mode taking alone core transmission can preferably avoid signal disturbing.
Wherein, two-forty signal can include that multi-media signal, described multi-media signal can include following arbitrary
Kind: HDMI signal, DVI signal, DP (DisplayPort, high-definition digital shows) signal, described
A signal in power supply signal and earth signal can be multiplexed into difference common-mode signal with described multi-media signal.
Signal source can be any possible multi-media signal source, such as: DVD player, high definition DVD are broadcast
Put device, Blu-ray player, the Set Top Box of cable television, the Set Top Box of satellite television, computer etc..
Additionally, two-forty signal may also include high speed USB signal, described high speed USB signal can include
USB2.0 signal；If described high speed USB signal passes through different transmission cables from described multi-media signal
Transmission；Described power supply signal becomes difference with a signal in earth signal with described high speed USB signal multiplexing
A pair core transmission is transmitted or taken alone to common-mode signal.
In some example, the signal extension fixture received signal not high speed USB signal of the application,
But USB1.0 signal, if desired it is multiplexed into difference common-mode signal with power supply signal or earth signal, sends
Module 10 or receiver module 20 can include USB2.0 signal conversion unit, for being turned by USB1.0 signal
Change USB2.0 signal into, or USB2.0 signal is converted into USB1.0 signal.
In order to improve the long-distance transmissions ability of high speed USB signal, in one example, sending module
10 and receiver module 20 can include that USB2.0 extends controller respectively, described USB2.0 extends control
Device processed is connected with described USB2.0 signal conversion unit, for USB2.0 signal carried out equilibrium amplify and
Drive and strengthen.If signal extension fixture directly transmit for USB high speed signal, then need not USB2.0
Signal conversion unit, USB2.0 extends controller and is connected also without with USB2.0 signal conversion unit.
In one example, the core quantity of the transmission cable transmitting described high speed USB signal is at least 2
Root；The core quantity of the transmission cable transmitting described multi-media signal is at least 8.
When the signal of signal extension fixture transmission includes power supply signal, earth signal, multi-media signal and high speed
Usb signal, the first transmission cable 30 core quantity is at least 8, at least includes 8 wires, the
Two transmission cables 40 at least 2, including 2 wires.If earth signal or power supply signal are to account for the most alone
With a pair core transmission of described transmission cable, the first transmission cable 30 can transmit with six roots of sensation individual conductor
DVI signal, other two wires individually transmit power supply signal, and the second transmission cable 40 can two lists
Solely wire transmission high speed USB signal, other two wire transmission earth signals.If power supply signal and multimedia
Signal is combined into difference common-mode signal, and earth signal and high speed USB signal pass after being combined into difference common-mode signal
Defeated, four twisted-pair feeders of the first transmission cable 30 can be transmitted the four of one-to-many media signal respectively to being formed
Two wires of arbitrary first differential mode passage are formed the common mode of transmission power supply signal by individual first differential mode passage
Duplex channel, can be by a twisted-pair feeder of the second transmission cable 30 to forming a pair high speed USB letter of transmission
Number the second differential mode passage, forming two wires of the second differential mode passage, to form the common mode of transmission earth signals double
To passage.
As seen from the above embodiment, the signal extension fixture of the application, by power supply signal and earth signal two
Transmit on the transmission cable that bar is different, power supply signal and earth signal can be avoided to transmit on same cable
Time formed circuit electromagnetic field on this cable transmission multi-media signal or the interference of usb signal, and
The power of power supply signal is the highest, the circuit electromagnetic field that it is formed on cable transmission multi-media signal or
The interference of usb signal is the biggest.It is divided among two different cables and uploads power transmission source signal and earth signal, keep away
Exempt from the interference of circuit electromagnetic field, when transmitting high-power power supply signal, multi-media signal and USB have been believed
Number interference reduce accordingly.Therefore, the application can not affect the transmitted signal of signal extension fixture
While transmission performance, the power supply signal of transmission more power.
In order at least one signal in described power supply signal and described earth signal is multiple with described two-forty signal
With becoming difference common-mode signal, sending module 10 and receiver module 20 can include difference common mode frequency division multiplexing net
Network, for becoming described difference altogether with described two-forty signal multiplexing described power supply signal or described earth signal
The first transmission cable 30 or the second transmission cable is issued after mould signal, maybe will be by described first transmission cable
30 or second transmission cable 40 receive described difference common-mode signal demultiplexing.Specifically refer to Fig. 2 a,
Fig. 2 a is for the ease of illustrating, and the first transmission cable 130 is eight core twisted-pair cables, including four strands
Line pair, is used for transmitting power supply signal and multi-media signal；Second transmission cable 140 is two core twisted-pair feeder electricity
Cable, including a twisted wire pair, is used for transmitting high speed USB signal and earth signal.And the first transmission cable
130 and second the strand line pair count of transmission cable 140 be not limited to exemplified by the present embodiment accompanying drawing 2a
Number, in other embodiments, can change according to the transmission demand of multi-media signal and usb signal, the
One transmission cable 130 can transmit power supply signal and high speed USB signal in the way of frequency division multiplexing, and second
Transmission cable 140 can transmit earth signal and multi-media signal in the way of frequency division multiplexing.
As shown in Figure 2 a, the signal extension fixture of the present embodiment can include sending module 110, receiver module
120 and the first transmission cable 130 and the second transmission cable 140, the first transmission cable independent of each other
130 and second transmission cable 140 be respectively used to transmit power supply signal and earth signal.Sending module 110 can
Including the first difference common mode frequency division multiplexing network 111 and the second difference common mode frequency division multiplexing network 112；Connect
Receive module 120 and can include the 3rd difference common mode frequency division multiplexing network 121 and the 4th difference common mode frequency division multiplexing
Network 122.
From Fig. 2 a it can be seen that the first difference common mode frequency division multiplexing network 111 and the 3rd difference common mode frequency
Multiplexed network 121 is divided to form a first differential mode passage by every pair of twisted-pair feeder of the first transmission cable 130
(D11/D12/D13/D14), and by the first twisted-pair feeder of the first transmission cable to (figure forming D11
Two wires) form the first common mode duplex channel X1, each first differential mode passage
(D11/D12/D13/D14) transmission one-to-many media signal, the first common mode duplex channel X1 transmission power supply
Signal；Second difference common mode frequency division multiplexing network 112 and the 4th difference common mode frequency division multiplexing network 122 lead to
A pair twisted-pair feeder crossing the second transmission cable 140 forms the second differential mode passage D21, and by the second biography
One twisted wire of defeated cable 140 forms the second common mode duplex channel to (forming two wires of D21 in figure)
X2, the second differential mode passage D21 transmit a pair high speed USB signal, and the second common mode duplex channel X2 passes
Defeated earth signal.The power supply signal transmitted can be by the electricity being connected with sending module 110 or receiver module 120
Source adapter provides, it is possible to provided by the power supply in multi-media signal source.
The present embodiment can be prolonged at signal by the first common mode duplex channel X1 and the second common mode duplex channel X2
Growth device achieves a butt joint while signal is extended to far-end and receives module 120, multimedia signal reception equipment
Remote power feeding, while not affecting the transmission performance of the transmitted signal of signal extension fixture, transmission more
Outside high-power power supply signal, also can save the externally fed adapter of the equipment of being powered or wiring board
Install, and the transmission cable of the present embodiment is less than the cable size of double netting twines, can effectively reduce transmission cable
Diameter, and then reduce installation cost and wiring difficulty.
The voltage of the power supply signal transmitted generally can be 48V or 36V, in order to be powered equipment needed for
Voltage matches, in one example, receiver module 120 may also include voltage conversion circuit, described voltage
Change-over circuit and the 3rd difference common mode frequency division multiplexing network 121 connect, for power supply signal is carried out voltage
Conversion, generates and is powered the power supply signal of the voltage matches of equipment.Such as, voltage conversion circuit can be by
The voltage of power supply signal is converted to the DC voltage of 12V, 9V, output to display, display master control borad
And backlight.
The situation of packet lost by corruption or clock jitter is often there is during the long range propagation of transmission cable,
Signal quality can be caused damage, if signal quality is improved by receiver module 120, at an example
In, receiver module 120 may also include HDMI equalizer amplifier and HDMI clock and data recovery and shake
Removing circuit, described HDMI equalizer amplifier and the 3rd difference common mode frequency division multiplexing network 121 connect,
Amplify and extensive for the multi-media signal of the 3rd difference common mode frequency division multiplexing network 121 output is carried out equilibrium
Its waveform multiple；Circuit amplification Jun Heng with described HDMI is removed in described HDMI clock and data recovery and shake
Device connects, and is used for eliminating multi-media signal internal clock or data dithering (long range propagation is caused), carries
High multimedia carries the signal quality of data.
In order to improve the transmission quality of multi-media signal, in another example, sending module 110 also may be used
Including HDMI drive circuit, described HDMI drive circuit and the first difference common mode frequency division multiplexing network
111 connect, for multi-media signal being carried out shaping and current amplifying process, and the many matchmakers after processing
Body signal is input to the first difference common mode frequency division multiplexing network 111, can improve the driving connecting transmission cable
Ability.Each comprising modules of signal extension fixture can use general-purpose device or circuit, can effectively reduce device
Cost and the stability of raising signal transmission, can support the multi-media signal of up to 1080P 60Hz resolution
Reliable long range propagation.
As an example, sending module 110 can be by the first multi-media signal interface (at an example
In, can be HDMI or DVI) connect computer display card HDMI or DVI, obtain video card output
Video signal, by first USB interface connect main frame USB 2.0 interface, receive USB2.0 letter
Number.Receiver module 120 can connect height by the second multi-media signal interface (such as HDMI or DVI)
Clear display, it is also possible to include that multiple secondary USB interface to connect peripheral hardware, such as, is respectively intended to access Mus
Mark, keyboard, USB flash disk, earphone, image the USB2.0 interface of first-class peripheral hardware, it is also possible to provide and support USB2.0
PS/2 interface access PS/2 keyboard or mouse, earphone microphone interface is used for accessing simulation earphone, mike.
The signal extension fixture of the application removes transmission multi-media signal, usb signal, electricity on transmission cable
Outside source signal and earth signal, also can transmit low-rate signal, sending module 110 is to receiver module 120
The low-rate signal sent is probably one or more signals in CEC signal and IR signal；Receive mould
Block 120 is probably CEC (Consumer Electronic to the low-rate signal that sending module 110 sends
Control) signal, HPD (Hot PlugDetect) signal, DDC (Display Data Channel)
One or more signals in signal and IR signal, described low-rate signal as common-mode signal with described many
Media signal is multiplexed into difference common-mode signal, sending module 110 and receiver module 120 and also can include respectively
One common-mode signal drives/receives circuit, specifically see Fig. 2 b.
As shown in Figure 2 b, the signal extension fixture of the present embodiment can include sending module 110, receiver module
120 and the first separate transmission cable 130 and the second transmission cable 140, the first transmission cable
130 and second transmission cable 140 be connected between sending module 110 and receiver module 120.Send out
Send module 110 can include first difference common mode frequency division multiplexing network the 111, second difference common mode frequency division multiplexing
Network 112 and the first common-mode signal drive/receive circuit 113, receiver module 120 can include the 3rd difference
Common mode frequency division multiplexing network 121 and the 4th difference common mode frequency division multiplexing network 122 and the second common-mode signal drive
Dynamic/to receive circuit 123.
From Fig. 2 b it can be seen that the first difference common mode frequency division multiplexing network 111 and the 3rd difference common mode frequency
Divide multiplexed network 121 by the second twisted-pair feeder of the first transmission cable 130 to (figure forming the two of D13
Bar wire) form the first common mode half-duplex channel J1, the first common mode half-duplex channel J1 transmission sending module 110
It is sent to the low-rate signal of receiver module 120；First difference common mode frequency division multiplexing network 111 and the 3rd
Difference common mode frequency division multiplexing network 121 by the 3rd twisted-pair feeder of the first transmission cable 130 to (shape in figure
Become two wires of D14) form the second common mode half-duplex channel J2, the second common mode half-duplex channel transmission receives
Module 120 is sent to the low-rate signal of sending module 110.
The low-rate signal entrance common-mode signal driving that in figure, sending module 110 sends to receiver module 120/
Receiving circuit 113, common-mode signal drives/receives circuit 113 to turn on the first common mode half-duplex channel J1；First
The low-rate signal that receiver module 120 sends is sent to common mode by difference common mode frequency division multiplexing network 111 to be believed
When number driving/receive circuit 113, it is unidirectional logical that common-mode signal drives/receive circuit 113 to turn on the second common mode
Road J2.
Common-mode signal drives/receives circuit 123 to receive low from the 3rd difference common mode frequency division multiplexing network 121
During rate signal, turn on the first common mode half-duplex channel J1；Receiver module 120 sends to sending module 110
Low-rate signal enter common-mode signal drive/receive circuit 123, common-mode signal drives/receives circuit 123
Turn on the second common mode half-duplex channel J2.
In one example, sending module 110 may also include the first process circuit, for believing low rate
Number carry out framing, and the low-rate signal after framing is issued the first common mode half-duplex channel J1, or will be from
Low-rate signal after the framing that two common mode half-duplex channel J2 receive carries out solving frame；Receiver module 120 also wraps
Include the second process circuit, for by the low-rate signal after the framing that the first common mode half-duplex channel J1 receives
Carry out solving frame, or issue the second common mode half-duplex channel J2 after low-rate signal is carried out framing.Process circuit
The processor realization of operational capability can be had by MCU etc..
In one example, sending module 110 may also include host computer control terminal, for Receiving Host
Working state control signal is also sent to described first and processes circuit and carry out framing package, and as low rate
Signal issues the first difference common mode frequency division multiplexing network 111；Receiver module 120 may also include desktop switch
Interface, for being connected to show the desktop switch of the display device of multi-media signal, receives described second
Process the working state control signal after circuit is unpacked, and notify that described desktop switchs.Described duty
Control signal comprise the steps that the one in switching on and shutting down signal, reset signal and disk read-write display lamp signal or
Multi-signal.Described host computer control terminal includes that one or more of interface and mainboard are corresponding and is connected
Terminal:
Switching on and shutting down signaling interface, reset signal interface and disk read-write display lamp signaling interface.
From above-described embodiment, the difference common mode frequency division multiplexing real-time performance common mode channel signal of the application
Mutually isolated with differential mode channel signal, it is to avoid interfering between signal.Sending module and receiver module
Multiplexing multiple low speed control signals transmission channel on internal HDMI/DVI digital video signal receiving-transmitting chain,
Transmission HDMI/DVI digital video signal simultaneously realize transmit DDC, HPD, computer on-off,
State and the control signals such as computer reset and disk read-write display lamp, can effectively ensure that far-end high definition computer shows
Show the EDID (Extended Display Identification Data) and HDCP of device and computer display card
(High-bandwidth Digital Content Protection) information is mutual, effectively solves video card
With display video signal compatibility sex chromosome mosaicism.
In another example, common-mode signal drives/receives circuit structure such as Fig. 3 institute of circuit 113/123
Show, it may include low-rate signal transtation mission circuit 310, low-rate signal receive circuit 320 and analog switch
330.The public input/output end port of analog switch and the first/the 3rd difference common mode frequency division multiplexing network connect
(realizing being connected with described first common mode half-duplex channel and described second common mode half-duplex channel), signal inputs
End is connected with the outfan of low-rate signal transtation mission circuit 310, and signal output part receives with low-rate signal
The input of circuit 320 connects；Input and the low-rate signal of low-rate signal transtation mission circuit 310 connect
The outfan receiving circuit 320 is connected with first/second process circuit respectively.
In another example, circuit structure such as Fig. 4 institute of the first/the 3rd difference common mode frequency division multiplexing network
Show, it may include four differential coupling channel circuits 410 and four common mode coupling circuit 420, differential coupling
Channel circuit 410 series winding is connected to a twisted wire to upper, two outfans of common mode coupling circuit 420 respectively with
Two wires of one twisted wire pair connect.Four differential mode passages and four common mode passages, four differential modes can be formed
Passage can transmit respectively 3 to HDMI signal TMDS D0_2, TMDS D1_2, TMDS D2_2 and
1 couple of clock signal TMDS CLK_2；Four common mode channel transfer power supply signals, low-rate signals.
In another example, circuit structure such as Fig. 5 institute of the second/the 4th difference common mode frequency division multiplexing network
Show, it may include a differential coupling channel circuit 510 and a common mode coupling circuit 520, differential coupling
Channel circuit 510 series winding is connected to a twisted wire to upper, two outfans of common mode coupling circuit 520 respectively with
Two wires of one twisted wire pair connect.Believe with can forming differential mode passage and the transmission of transmission high speed USB signal
Number common mode passage.
The power supply signal that the signal extension fixture of the application is received can be provided by host power supply, host power supply
While meeting host supplying power demand, export a road DC power signal to signal extension fixture, send mould
Block can include that host power supply interface, described host power supply interface are connected with host power supply, for by main frame electricity
The DC power signal of source output is input to transmit the transmission cable of power supply signal.Specifically refer to Fig. 6,
As shown in Figure 6, the sending module 610 of the present embodiment can include the first difference common mode frequency division multiplexing network 611,
Second difference common mode frequency division multiplexing network 612 and host power supply interface 613,613 points of host power supply interface
It is not connected with the first difference common mode frequency division multiplexing network 611 and host power supply, for host power supply is exported
DC power signal be input to the first difference common mode frequency division multiplexing network 611.
Export DC power signal by host power supply, it is achieved remote power feeding, the reception mould of far-end can be saved
Block and the power supply adaptor of multimedia signal reception equipment (such as display), can reduce installation cost, subtract
Lack the cable amount of deployment, beautify wiring environment.Host power supply interface 613 can Receiving Host power supply provide
Voltage is the power supply signal of 48V, 36V.
In one example, sending module 610 may also include protection circuit 614, and protection circuit 614 is even
It is connected between host power supply interface 613 and the first difference common mode frequency division multiplexing network 611.
In another example, protection circuit 614 can include one or more in circuits below:
Overvoltage crowbar, under-voltage protecting circuit, current foldback circuit and intersection line sequence protection circuit.
In other embodiments, power supply signal can be by the external power source being connected with sending module or receiver module
Adapter provides.
It is the application that the circuit structure of the sending module of the application signal extension fixture see Fig. 7, Fig. 7
One example structure schematic diagram of the sending module of signal extension fixture:
As it is shown in fig. 7, sending module can include that protection circuit 715, first processes circuit 716, first altogether
Mould signal drives/receives circuit 717, and the first multi-media signal interface 711, the HDMI that are sequentially connected with drive
Galvanic electricity road the 712, first difference common mode frequency division multiplexing network 713 and the first cable interface 714, and successively
The the first usb signal interface 718, the USB2.0 signal that connect extend controller the 719, second difference common mode
Frequency division multiplexing network 720 and the second cable interface 721；Protection circuit 715 is connected to the letter of power supply signal
Number between source and the first difference common mode frequency division multiplexing network 713, first processes circuit 716 respectively with first
Multi-media signal interface the 711, first common-mode signal drives/receives circuit 717 and USB2.0 signal to extend
Controller 719 connects, for low-rate signal is carried out framing.
First multi-media signal interface 711 is HDMI/DVI interface；First usb signal interface 718
For usb signal interface；First cable interface 714 can be 8P8C socket；Second cable interface 721 can
For for 6P4C or 6P2C socket.
The HDMI drive circuit 712 being connected with the first multi-media signal interface 711, to multi-media signal
Carry out shaping and current amplifying process, improve the driving force connecting transmission cable.
USB 2.0 signal being connected with the first usb signal interface 718 extends controller 719, for right
USB2.0 signal carries out equilibrium and amplifies and drive enhancing.
In an example, sending module may also include host power switch/reset/status lamp terminal, and first
Process circuit 716 respectively with the first multi-media signal interface 711, USB2.0 signal extend controller 719,
On and off switch/the reset of main frame/status lamp interface connects, by the switch relevant with main frame and status signal (i.e.
Working state control signal) DDC relevant with HDMI/DVI and HPD signal (i.e. high rate video
Display control signal) process of framing package, manage the configuration of each module and state collection, by difference common mode
Frequency division multiplexing network sets up a control signal passage and receiver module communication.
It is the application that the circuit structure of the receiver module of the application signal extension fixture see Fig. 8, Fig. 8
One example structure schematic diagram of the receiver module of signal extension fixture, in this application example, receives
Module can include that the 3rd cable interface the 811, the 3rd difference common mode frequency division multiplexing network 812, HDMI equalize
Circuit the 814, second multi-media signal interface is removed in amplifier 813, HDMI clock and data recovery and shake
815, the second common-mode signal drives/receives circuit 816, second to process circuit 817, voltage conversion circuit
818, the 4th cable interface the 819, the 4th difference common mode frequency division multiplexing network the 820, the 2nd USB2.0 prolongs
Long controller 821 and the second usb signal interface 822.3rd cable interface the 811, the 3rd difference common mode
Frequency division multiplexing network 812, HDMI equalizer amplifier 813, HDMI clock and data recovery and shake are removed
Circuit 814 and the second multi-media signal interface 815 are sequentially connected with；Second common-mode signal drives/receives circuit
816 are connected with the 3rd difference common mode frequency division multiplexing network 812, and second processes circuit 817 is connected to second
Common-mode signal drives/receives between circuit 816 and the second multi-media signal interface 815, voltage conversion circuit
818 are connected with the 3rd difference common mode frequency division multiplexing network 812, and output is mated with the demand voltage of display
Power supply signal, the 4th cable interface the 819, the 4th difference common mode frequency division multiplexing network 820, second
USB2.0 extends controller 821 and the second usb signal interface 822 is sequentially connected with.
3rd cable interface 811 can be 8P8C socket；4th cable interface 819 can be 6P4C or 6P2C
Socket；Second multi-media signal interface 815 is HDMI/DVI interface；Second usb signal interface 822
For USB interface, USB peripheral and USB sound card, USB sound card lug machine and headset can be connected.
HDMI equalizer amplifier 813, amplifies for TMDS signal carries out equilibrium, recovers through long
Line extends the TMDS waveform after transmission, supports self adaptation automatic equalization.
Circuit 814 is removed in HDMI clock and data recovery and shake, for eliminating because long range propagation brings
Clock or data dithering, improve output TMDS signal quality.
2nd USB 2.0 extends controller 821, amplifies for USB2.0 signal carries out equilibrium and drives
Strengthen.
USB sound card is receiver module internal USB sound card circuit, and USB sound card hangs over reception unit USB
Under 2.0 hub ECP Extended Capabilities Ports, host computer can be provided the user by USB transmission cable at far-end
Audio frequency input and output.This sound card circuit has audio frequency CODEC and DAC, and acceptable analogue audio frequency is defeated
Enter and export.
Second process circuit 817 control signal (low-rate signal) after package can be unpacked into
The relevant DDC of HDMI/DVI and HPD signal, desktop switch input/output switching and status information, will
DDC and HPD signal are issued HDMI/DVI interface, desktop are switched input/output switching and state letter
Breath issues desktop switch interface.
The signal extension fixture of the application, after transferring signals to receiver module by transmission cable, receives
Module transfers signals to signal receiver, and common signal receiver is display, and display
It is typically two autonomous devices with receiver module, is connected by DVI or HDMI cable.Aobvious in order to simplify
Show that the cable between device with receiver module is connected and is easy to routine use operation and safeguards, can be by receiver module
It is placed in the housing of display, is a reality of the application integration display referring particularly to Fig. 9, Fig. 9
Execute example structural representation:
As it is shown in figure 9, integration display can include monitor body 910 and supporting part 920, display
Display circuit module 940 and receiver module 930, by fore shell and back cover, are encapsulated in by device body 910
Monitor body 910 is internal.The structure of receiver module 930 can connect as shown in arbitrary in Fig. 1 to Fig. 8
Transmit and receive the signal that module sends, complete the function of signal extension fixture receiving terminal, may also include multimedia
Signal output interface and power supply signal output interface.
Monitor body 910 includes two cable interfaces 950, and receiver module 930 is respectively by two electricity
Cable interface 950 is connected with above-described first transmission cable and the second transmission cable.
Display circuit module 940 realizes the function that the various of display are relevant to display, it may include many matchmakers
Body signaling interface, is connected with described multi-media signal output interface, to receive the videos such as DVI, HDMI
Signal.
Monitor body 910 can include power interface 960, be connected to described power supply signal output interface with
Between display circuit module 940.For obtaining the power supply signal of receiver module 930 output, for display
Device circuit module 940 is powered.The voltage of the power supply signal received can be 12V, 9V.
In order to receive usb signal, supporting part 920 may also include external interface, can be with receiver module 930
Usb signal output interface connect.Display basis 910 can include external interface in other embodiments.
External interface is in order to transmit required status signal and to access various peripheral hardwares etc..Status signal can
To include the signal relevant with desktop switching function, such as computer mainframe switch machine signal, reset and restart letter
Number, computer host power supply open state indication signal and signal extension fixture video state indication signal and
USB condition indicative signal.Usb signal state, may refer to the USB transmitted by signal extension fixture
Signal condition is the most normal, and usb signal and the video signal of the transmission of signal extension fixture can be independent
Primary and secondary twisted pair physical media, sub-line (the second transmission cable) RJ12 interface transmits USB2.0 signal,
Bus (the first transmission cable) RJ45 interface transmits HDMI video signal.
In one example, integration display may also include the second external interface, and the second external interface can
To include that at least one is with lower interface: remote host power switch button interface, restart keyed jointing mouth, main frame
Power supply open state display lamp interface, video connection status display lamp interface, extender usb signal state
Display lamp interface, PS/2 interface, earphone microphone interface.
In another example, it is contemplated that strengthen Anti-interference Design, can be by the reception mould of signal extension fixture
The wiring board at block 930 place uses metallic shield, the various interfaces of connection in monitor body 910
Winding displacement and multi-media signal interface line are both needed to consider its signal integrity and shielding isolation design.
In other embodiments, cable interface and external interface can be according to the different Demand Design of designer
On monitor body 910 or supporting part 920.For example, it is possible to put according to outward appearance and Structural Design Requirement
It is placed in the fore shell of integration display, the position such as back cover or supporting part 920.
One embodiment internal logic of the display circuit module of the integrated display of the application such as figure
Shown in 10, display circuit module 1010 can include power module 1011, backlight 1012, display screen
1013, plate 1014, display keypad 1015 and the two-in-one plate of power supply backlight 1016, power supply mould are driven
Block 1011 is positioned on the two-in-one plate of power supply backlight 1016.Display screen 1013 respectively with backlight 1012 and
Drive plate 1014 connect, drive plate 1014 be simultaneously connected with display keypad 1015, by with receive mould
Block 930 or PERCOM peripheral communication, it is achieved the display function of display circuit module.
Figure 11 and Figure 12 is an embodiment appearance front view of the application integration display respectively
With appearance rearview:
Supporting part 920 in Fig. 9 shows as base in fig. 11, and the second Peripheral Interface shows shape at hardware
Various interface functions shown in figure are provided in formula.On base, reserved earphone interface is for engaging lug
Machine and microphone voice input and output, five USB interface are used for accessing USB2.0 peripheral hardware, PS/2 interface
For connecting keyboard and mouse.Three status lamps indicate respectively the video connection status of receiver module 930, USB
Signal condition and remote host power supply open state.It can be seen that back cover 1013 from Figure 12 rearview
Upper except display of the prior art generally with DVI, outside USB interface, also add power interface,
RJ11 and RJ45 mouth is as cable interface, and power interface is for obtaining the power supply of receiver module 930 output
Signal, RJ11 and RJ45 mouth is used for connecting transmission cable.
Those skilled in the art, after considering description and putting into practice utility model disclosed herein, will easily think
Other embodiment to the application.The application is intended to any modification of the application, purposes or fits
Answering property changes, and these modification, purposes or adaptations are followed the general principle of the application and include
The undocumented common knowledge in the art of the application or conventional techniques means.Description and embodiments
Being considered only as exemplary, the true scope of the application and spirit are pointed out by claim below.
It should be appreciated that the application be not limited to described above and illustrated in the accompanying drawings accurately
Structure, and various modifications and changes can carried out without departing from the scope.Scope of the present application is only by institute
Attached claim limits.
Claims (17)
1. a signal extension fixture, including sending module and receiver module, it is characterised in that also include
The two transmission lines cables being connected between described sending module and described receiver module, two transmission lines cables that
This is independent, and wherein a transmission lines cable transmits power supply letter between described sending module and described receiver module
Number, another transmission lines cable transmits earth signal between described sending module and described receiver module.
Signal extension fixture the most according to claim 1, it is characterised in that described power supply signal and
In earth signal, at least one signal takies alone a pair core transmission of transmission cable.
Signal extension fixture the most according to claim 1, it is characterised in that at least one transmission line
The signal of cable transmission also includes two-forty signal, and described two-forty signal transmits with differential signalling form；
In described power supply signal and earth signal, at least one signal is as common-mode signal and described two-forty signal
It is multiplexed into difference common-mode signal.
Signal extension fixture the most according to claim 3, it is characterised in that described two-forty signal
Including multi-media signal, described multi-media signal include following any one: HDMI signal, DVI signal,
DP signal；
A signal in described power supply signal and earth signal and described multi-media signal are multiplexed into difference common mode
Signal.
Signal extension fixture the most according to claim 4, it is characterised in that described two-forty signal
Also include that high speed USB signal, described high speed USB signal include USB2.0 signal；Described high speed USB
Signal is transmitted by different transmission cables from described multi-media signal；
Described power supply signal becomes with described high speed USB signal multiplexing with a signal in described earth signal
A pair core transmission is transmitted or taken alone to difference common-mode signal.
Signal extension fixture the most according to claim 5, it is characterised in that described sending module or
Described receiver module includes USB2.0 signal conversion unit, for USB1.0 signal is converted into USB2.0
Signal, or USB2.0 signal is converted into USB1.0 signal.
Signal extension fixture the most according to claim 6, it is characterised in that described sending module and
Described receiver module includes that USB2.0 extends controller respectively, described USB2.0 extend controller with
Described USB2.0 signal conversion unit connects, and increases for USB2.0 signal carries out equilibrium amplification and driving
By force.
Signal extension fixture the most according to claim 5, it is characterised in that transmit described high speed
The core quantity of the transmission cable of usb signal is at least 2；Transmit the transmission line of described multi-media signal
The core quantity of cable is at least 8.
Signal extension fixture the most according to claim 3, it is characterised in that described sending module
Difference common mode frequency division multiplexing network is included, for by described power supply signal or described with described receiver module
Signal becomes with described two-forty signal multiplexing issues transmission cable after described difference common-mode signal, maybe will pass through
The described difference common-mode signal demultiplexing that transmission cable receives.
Signal extension fixture the most according to claim 9, it is characterised in that described sending module
Also include that host power supply interface, described host power supply interface are connected with host power supply, for by host power supply
The DC power signal of output is input to transmit the transmission cable of power supply signal.
11. signal extension fixtures according to claim 10, it is characterised in that described sending module
Also include that protection circuit, described protection circuit are arranged at described host power supply interface and described difference common mode frequency
Divide between multiplexed network；
Described protection circuit includes one or more in circuits below:
Overvoltage crowbar, under-voltage protecting circuit, current foldback circuit and intersection line sequence protection circuit.
12. signal extension fixtures according to claim 4, it is characterised in that transmit described many matchmakers
The signal of the transmission cable transmission of body signal also includes low-rate signal, and described low-rate signal is as common mode
Signal and described multi-media signal are multiplexed into difference common-mode signal；
Described sending module and described receiver module respectively further comprise a common-mode signal and drive/receive circuit,
Two common-mode signals drive/receive circuit to be sent to described reception mould for sending module described in one-way conduction
First common mode half-duplex channel of the low-rate signal of block, or receiver module described in one-way conduction is sent to described
Second common mode half-duplex channel of the low-rate signal of sending module.
13. signal extension fixtures according to claim 12, it is characterised in that described sending module
Also including the first process circuit, for low-rate signal being carried out framing, and the low rate after framing being believed
Number issue described first common mode half-duplex channel, or by after the framing that described second common mode half-duplex channel receives
Low-rate signal carry out solve frame；
Described receiver module also includes the second process circuit, for receiving from described first common mode half-duplex channel
To framing after low-rate signal carry out solving frame, or issue described the after low-rate signal is carried out framing
Two common mode half-duplex channels.
14. signal extension fixtures according to claim 13, it is characterised in that described common-mode signal
Low-rate signal transtation mission circuit, low-rate signal receive circuit and analog switch to drive/receive circuit to include；
The public input/output end port of described analog switch respectively with described first common mode half-duplex channel and institute
State the second common mode half-duplex channel to connect, signal input part and the outfan of described low-rate signal transtation mission circuit
Connecting, the input that signal output part receives circuit with described low-rate signal is connected；
The input of described low-rate signal transtation mission circuit and described low-rate signal receive the outfan of circuit
Process circuit respectively with described first or described second process circuit is connected.
15. signal extension fixtures according to claim 1, it is characterised in that described receiver module
Also include voltage conversion circuit, for power supply signal is carried out voltage conversion, generate and be powered equipment
The power supply signal of voltage matches.
16. according to the signal extension fixture according to any one of claim 1 to 15, it is characterised in that
Every transmission lines cable includes being positioned at outermost restrictive coating, and described restrictive coating is connected by thin layer gluing, institute
State thin layer and described restrictive coating is one-body molded.
17. 1 kinds of integrated display, including monitor body and supporting part, in described monitor body
Portion includes display circuit module, it is characterised in that also include inside described monitor body that right such as is wanted
Multi-media signal output connects to ask the receiver module according to any one of 1 to 16, described receiver module also to include
Mouth and power supply signal output interface；
Described monitor body or described supporting part include two cable interfaces, and described receiver module leads to respectively
Cross two cable interfaces to be connected with described first transmission cable and described second transmission cable；
Described display circuit module includes multi-media signal interface, with described multi-media signal output interface
It is connected；
Described monitor body or described supporting part also include power interface, are connected to described power supply signal defeated
Between outgoing interface and described display circuit module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610210378 | 2016-04-06 | ||
| CN2016102103783 | 2016-04-06 |
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| CN205792967U true CN205792967U (en) | 2016-12-07 |
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|---|---|---|---|
| CN201610378168.5A Active CN105847726B (en) | 2016-04-06 | 2016-05-31 | Signal extends device and integrated display |
| CN201620519994.2U Withdrawn - After Issue CN205792967U (en) | 2016-04-06 | 2016-05-31 | Signal extension fixture and integration display |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847726A (en) * | 2016-04-06 | 2016-08-10 | 深圳市昊源科技有限公司 | Signal transmission extender and integrated display |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107770102A (en) * | 2016-08-22 | 2018-03-06 | 杭州海康威视数字技术股份有限公司 | A kind of alarm post of frequency division multiplexing differential transmission signals |
| CN107124205A (en) * | 2017-06-28 | 2017-09-01 | 上海旗娱网络科技有限公司 | Method for transmitting signals, apparatus and system |
| CN110913527B (en) * | 2019-11-12 | 2022-06-21 | 上海铁大电信科技股份有限公司 | Supervision driving circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090043847A (en) * | 2007-10-30 | 2009-05-07 | 강인원 | A transmitter of multimedia data |
| CN101426120B (en) * | 2008-10-23 | 2010-06-09 | 宁波奥科电子技术有限公司 | Method for expanding HDMI and/or DVI interface by single Ethernet cable for long distance connection |
| CN205068361U (en) * | 2015-09-02 | 2016-03-02 | 高华伟 | Computer extender |
| CN105847726B (en) * | 2016-04-06 | 2019-04-19 | 深圳市昊一源科技有限公司 | Signal extends device and integrated display |
-
2016
- 2016-05-31 CN CN201610378168.5A patent/CN105847726B/en active Active
- 2016-05-31 CN CN201620519994.2U patent/CN205792967U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847726A (en) * | 2016-04-06 | 2016-08-10 | 深圳市昊源科技有限公司 | Signal transmission extender and integrated display |
| CN105847726B (en) * | 2016-04-06 | 2019-04-19 | 深圳市昊一源科技有限公司 | Signal extends device and integrated display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105847726A (en) | 2016-08-10 |
| CN105847726B (en) | 2019-04-19 |
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Granted publication date: 20161207 Effective date of abandoning: 20190419 |