CN103986899B - HDMI extender emitting terminal, HDMI extender receiving terminal and extender transmission system - Google Patents

HDMI extender emitting terminal, HDMI extender receiving terminal and extender transmission system Download PDF

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Publication number
CN103986899B
CN103986899B CN201410140265.1A CN201410140265A CN103986899B CN 103986899 B CN103986899 B CN 103986899B CN 201410140265 A CN201410140265 A CN 201410140265A CN 103986899 B CN103986899 B CN 103986899B
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hdmi
chip
connect
resistance
connection
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CN103986899A (en
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周育春
胡海龙
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Shenzhen City Hanko Electronic Ltd By Share Ltd
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Shenzhen City Hanko Electronic Ltd By Share Ltd
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Abstract

The invention discloses an HDMI extender emitting terminal, an HDMI extender receiving terminal and an extender transmission system. The emitting terminal comprises an HDMI connector module, a first HDMI processing module, an HDMI output drive module and a first RJ45 network interface. The HDMI connector module, the first HDMI processing module, the HDMI output drive module and the first RJ45 network interface are sequentially connected. An HDMI signal outputted by a high-definition signal playing resource is received by the HDMI connector module, processed and decoded through the first HDMI processing module, then coupled through the HDMI output drive module, and then outputted to the receiving terminal through the first RJ45 network interface, the effect of transmitting the HDMI signal through a single network cable is achieved, and a great progress is made in the field.

Description

HDMI extender launch terminals, receiving terminal and extender Transmission system
Technical field
The present invention relates to technical field of electronic equipment, more particularly to HDMI extenders launch terminal, receiving terminal and prolongation Device Transmission system.
Background technology
At present on the market, HDMI（High Definition Multimedia Interface, high-definition multimedia connects Mouthful）Extender mostly uses the incompressible HDMI signals of double joint network cable transmission, in the high definition number of transmission 1080P, 60Hz, 24bit According to when, maximum transmission distance is 50 meters, but following weak point occurs by the way of this two network cable transmission data：
1st, the wiring of double joint netting twine is inconvenient, and in the case where netting twine is long, if the netting twine testing tool without specialty It is easy to obscure port；2nd, without EDID（Extended Display Identification Data extending display identification numbers According to）Editorial management function, based on itself bandwidth problem of HDMI amplification chips on the market at present, cannot necessarily meet rear end The requirement of the signal bandwidth of 1080P, 36Bit or 4K × 2K；3rd, ultrared transmission channel needs to use in 4 pairs of twisted-pair feeders One or two data lines, dual-purpose network data line, result in the need for two netting twines；4th, the cost of double joint netting twine is than single netting twine High cost.
In view of above-mentioned deficiency, needs inventor badly and prior art is improved and is innovated.
The content of the invention
In view of above-mentioned the deficiencies in the prior art part, it is an object of the invention to provide a kind of transmitting of HDMI extenders is eventually End, receiving terminal and extender Transmission system, using single netting twine the remote biography of incompressible HDMI signals can be just realized It is defeated.
In order to achieve the above object, this invention takes technical scheme below：
A kind of HDMI extenders launch terminal, including：
For receiving the HDMI connector module of the HDMI signals of high-definition signal broadcast source output；
For the HDMI processing modules for being processed the HDMI signals and decoded；
For carrying out processing the HDMI output driving moulds of output AC coupled signals to the signal that HDMI processing modules are exported Block；
For exporting a RJ45 network interfaces of HDMI signals；
EDID is switched；
Signal for EDID to be switched output feeds back to the first singlechip controller of a HDMI processing modules；
First infrared receiver interface；
First infrared emission interface；
For the first drive module for being driven to infrared signal and amplifying；
For preventing the first isolated location of HDMI clock signals and ground short circuit；
The HDMI connector module, a HDMI processing modules, HDM I output drivings modules and a RJ45 networks connect Mouth is sequentially connected；The EDID switches connect a HDMI processing modules by the first singlechip controller；Described first is infrared Receiving interface and the first infrared emission interface connect HDMI output drivings module and a RJ45 by first drive module Network interface, first isolated location connects the HDMI output drivings module and a RJ45 network interfaces.
In described HDMI extender launch terminals, the HDMI connector module include HDMI input connectors, first ESD chip and the second ESD chip；First HDMI processing modules include the HDMI processors and model of model SII9187 The analog multiplexer of MC74LVXT4052；First ESD chip and the second ESD chip adopt model The integrated chip of ESD5V3U4U-HDMI；HDMI output drivings module includes the first AC coupled unit, and model MAX3814 The first driving chip and the second driving chip, the first AC coupled unit includes the first electric capacity, the second electric capacity, the 3rd electric Appearance, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity and the 8th electric capacity；
The RXC- ends of the HDMI input connectors connect the 1st end of the first ESD chip, the HDMI input connectors RXC+ ends connect the 2nd end of the first ESD chip, the RX0- ends of the HDMI input connectors connect the 4th of the first ESD chip End, the RX0+ ends of the HDMI input connectors connect the 5th end, the RX1- of the HDMI input connectors of the first ESD chip 1st end of the second ESD chip of end connection, the RX1+ ends of the HDMI input connectors connect the 2nd end, the institute of the second ESD chip The RX2- ends for stating HDMI input connectors connect the RX2+ ends connection of the 4th end of the second ESD chip, the HDMI input connectors 5th end of the second ESD chip；
The RXC- ends of the HDMI processors connect 9 ends of the first ESD chip, the RXC+ ends connection of the HDMI processors 8 ends of the first ESD chip, the RX0- ends of the HDMI processors connect 7 ends of the first ESD chip, the HDMI processors RX0+ ends connect 6 ends of the first ESD chip, and the RX1- ends of the HDMI processors connect 9 ends of the second ESD chip, described The RX1+ ends of HDMI processors connect 8 ends of the second ESD chip, and the RX2- ends of the HDMI processors connect the second ESD chip 7 ends, the RX2+ ends of the HDMI processors connect 6 ends of the second ESD chip；
The INT ends of the HDMI processors connect first singlechip controller, the CSDA ends of the HDMI processors The X1 ends of connection analog multiplexer and the first singlechip controller, the CSCL ends connection Multipexer of the HDMI processors The Y1 ends of multiplexer and the first singlechip controller, the DSCL ends of the HDMI processors connect the Y0 of analog multiplexer End, the DSDA ends of the HDMI processors connect the X0 ends of analog multiplexer；
The CBUS-HID ends of the HDMI processors connect the HTPLUG ends of HDMI input connectors, and the Multipexer is answered Connect the SDA ends of HDMI input connectors, the Y ends connection HDMI input connectors of the analog multiplexer with the X ends of device SCL ends；
The INA+ ends of first driving chip and the IND- ends of the second driving chip connect the TXC- ends of HDMI processors, The INA- ends of first driving chip and the TXC+ ends of the IND+ ends connection HDMI processors of the second driving chip, described first The INB+ ends of driving chip and the INC- ends of the second driving chip connect the TX0- ends of HDMI processors, first driving chip INB- ends and the second driving chip INC+ ends connect HDMI processors TX0+ ends, the INC+ ends of first driving chip Connect the TX1- ends of HDMI processors with the INB- ends of the second driving chip, the INC- ends of first driving chip and second drive The INB+ ends of dynamic chip connect the TX1+ ends of HDMI processors, the IND+ ends of first driving chip and the second driving chip INA- ends connect the TX2- ends of HDMI processors, and the IND- ends of first driving chip and the INA+ ends of the second driving chip connect Connect the TX2+ ends of HDMI processors；
The OUTB+ ends of first driving chip and the OUTC- ends of the second driving chip pass through the second capacitance connection first The RX-D2- ends of RJ45 network interfaces；The OUTB- ends of first driving chip and the OUTC+ ends of the second driving chip are by the The RX-D2+ ends of the RJ45 network interfaces of seven capacitance connection the；The OUTC+ ends of first driving chip and the second driving chip OUTB- ends by the BI_D3- ends of the RJ45 network interfaces of the 8th capacitance connection the, the OUTC- ends of first driving chip The BI-D3+ ends for passing through the RJ45 network interfaces of the 3rd capacitance connection the with the OUTB+ ends of the second driving chip；Described first drives The TX_D1 that the OUTD- ends of dynamic chip and the OUTA+ ends of the second driving chip pass through the RJ45 network interfaces of the 4th capacitance connection the + end, the OUTD+ ends of first driving chip and the OUTA- ends of the second driving chip pass through the RJ45 of the first capacitance connection the The TX_D1- ends of network interface, the OUTA+ ends of first driving chip and the OUTD- ends of the second driving chip are electric by the 5th Hold the BI-D4- ends of the first RJ45 network interfaces of connection, the OUTA- ends of first driving chip and the second driving chip The BI-D4+ ends that OUTD+ ends pass through the RJ45 network interfaces of the 6th capacitance connection the.
In described HDMI extender launch terminals, the first singlechip controller is integrated using model STM8S103FX Chip, the PD3 ends of first singlechip controller connect the INT ends of HDMI processors, the PC5 ends of the first singlechip controller 6th end of connection EDID switches, the 7th end of the PC6 ends connection EDID switches of the first singlechip controller and the first single-chip microcomputer control 8th end of the PC7 ends connection EDID switches of device processed, the PB4/SCL ends connection HDMI processors of the first singlechip controller CSCL ends and the Y1 ends of analog multiplexer, the PB5/SDA ends of the first singlechip controller connect the CSDA of HDMI processors End and the X1 ends of analog multiplexer；The PC3 ends of the first singlechip controller connect the A ends of the analog multiplexer.
In described HDMI extender launch terminals, first drive module include the first infrared signature reduction unit, First amplification chip of model LMH6643MM, an IR signal shaping chips of model 74LVC14, the first gain parameter Setting unit, filter unit, the first magnetic bead, the second magnetic bead, the first triode and the first pull-up resistor；
Wherein：The first infrared signature reduction unit include first resistor, second resistance, 3rd resistor, the 4th resistance, 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance；The first gain parameter setting unit include the 9th resistance, the tenth Resistance and the 11st resistance；The filter unit includes the 9th electric capacity and the tenth electric capacity；
3rd end of the first infrared receiver interface and the 5th end connect the 1A ends of an IR signal shaping chips, and described the The 2Y ends of one IR signal shaping chips connect the B+ ends of the first amplification chip, the 6Y ends connection of the IR signal shaping chips The base stage of the first triode, the colelctor electrode of the first triode connect 5V feeder ears and first infrared by first pull-up resistor 3rd end of emission interface and the 5th end, the grounded emitter of the first triode；
The B- ends of first amplification chip are connected the BI-D3+ ends of a RJ45 network interfaces by the first magnetic bead, are also divided Not Tong Guo first resistor, second resistance, 3rd resistor and the 4th resistance eutral grounding, also respectively by the 5th resistance, the 6th resistance, the Seven resistance and the 8th resistance connect the BOUT ends of the first amplification chip, and the A- ends of first amplification chip pass through the 11st resistance Ground connection, the one end for also connecting the 9th resistance by the tenth resistance, the AOUT ends of first amplification chip connect the 9th resistance One end, the other end of the 9th resistance connects 4A ends of an IR signal shaping chips, also electric by the 9th electric capacity and the tenth respectively Hold ground connection, the A+ ends of first amplification chip connect the TX_D1+ ends of a RJ45 network interfaces by the second magnetic bead.
A kind of HDMI extenders receiving terminal, it is characterised in that include：
For receiving the 2nd RJ45 network interfaces of HDMI signals；
HDMI for carrying out AC coupled process and amplification to the HDMI signals that the 2nd RJ45 network interfaces are exported is input into Balance module；
For the 2nd HDMI processing modules that the signal that HDMI input uniforms module is exported is processed and encrypted；
For exporting the HDMI out connectors that HDMI signals are played to HDMI receiving devices；
HDCP and EQ is switched；
For the signal of HDCP and EQ switch outputs to be fed back to into HDMI input uniforms module and the 2nd HDMI processing modules Second singlechip controller；
Second infrared receiver interface；
Second infrared emission interface；
For the second drive module for being driven to infrared signal and amplifying；
The 2nd RJ45 network interfaces, HDMI input uniform modules, the 2nd HDMI processing modules and HDMI output connection Device is sequentially connected；First RJ45 network interfaces of HDMI extender launch terminals are connected by netting twine and the 2nd RJ45 network interfaces Connect；The HDCP and EQ switches connect HDMI input uniforms module by second singlechip controller and the 2nd HDMI processes mould Block；
The second infrared receiver interface and the second infrared emission interface are described by second drive module connection HDMI input uniforms module and with the 2nd RJ45 network interfaces.
In described HDMI extender receiving terminals, the HDMI input uniforms module includes the equal of model MAX3815 Weighing apparatus chip, the 3rd ESD chip, the 4th ESD chip, the second AC coupled unit and the second isolated location, the 3rd ESD cores Piece and the 4th ESD chip are using the integrated chip of model ESD5V3U4U-HDMI；The 2nd HDMI processing modules include： The HDMI signal transactings of model EP9132N and encryption chip, model EPF011A of the second singlechip controller；Institute State the second AC coupled unit including the 11st electric capacity, the 12nd electric capacity, the 13rd electric capacity, the 14th electric capacity, the 15th electric capacity, 16th electric capacity, the 17th electric capacity and the 18th electric capacity；
The TX_D1+ that the RX0_IN- ends of the balanced device chip pass through the RJ45 network interfaces of the 11st capacitance connection the 2nd End, the RX0_IN+ ends of the balanced device chip pass through the TX_D1- ends of the RJ45 network interfaces of the 12nd capacitance connection the 2nd, described The BI-D3+ ends that the RX1_IN- ends of balanced device chip pass through the RJ45 network interfaces of the 14th capacitance connection the 2nd, the balanced device The BI_D3- ends that the RX1_IN+ ends of chip pass through the RJ45 network interfaces of the 15th capacitance connection the 2nd, the balanced device chip The RX-D2+ ends that RX2_IN- ends pass through the RJ45 network interfaces of the 13rd capacitance connection the 2nd, the RX2_IN+ of the balanced device chip The RX-D2- ends that end passes through the RJ45 network interfaces of the 16th capacitance connection the 2nd, the RXC_IN+ ends of the balanced device chip pass through The BI-D4+ ends of the RJ45 network interfaces of the 17th capacitance connection the 2nd, also by the 14th resistance connect 3.3V feeder ears, it is described The RXC_IN- ends of balanced device chip pass through the BI-D4- ends of the RJ45 network interfaces of the 18th capacitance connection the 2nd, also pass sequentially through 5th magnetic bead and the 6th magnetic bead are grounded；
The RX0_OUT- ends of the balanced device chip connect the 1st end of the 3rd ESD chip, the 9th of the 3rd ESD chip the The RX2M ends of end connection HDMI signal transactings and encryption chip, the RX0_OUT+ ends of the balanced device chip connect the 3rd ESD cores 2nd end of piece, the 8th end connection HDMI signal transactings of the 3rd ESD chip and the RX2P ends of encryption chip, the balanced device The RX1_OUT- ends of chip connect the 4th end of the 3rd ESD chip, the 7th end connection HDMI signal transactings of the 3rd ESD chip and add The RX1M ends of close chip, the RX1_OUT+ ends of the balanced device chip connect the 5th end of the 3rd ESD chip, the 3rd ESD chip 6th end connects the RX1P ends of HDMI signal transactings and encryption chip, and the RX2_OUT- ends of the balanced device chip connect the 4th ESD 1st end of chip, the 9th end connection HDMI signal transactings of the 4th ESD chip and the RX0M ends of encryption chip, the balanced device core The RX2_OUT+ ends of piece connect the 2nd end of the 4th ESD chip, the 8th end connection HDMI signal transactings of the 4th ESD chip and encryption The RX0P ends of chip, the RXC_OUT+ ends of the balanced device chip connect the 4th end of the 4th ESD chip, the of the 4th ESD chip 7 ends connect the RXCM ends of HDMI signal transactings and encryption chip, and the RXC_OUT- ends of the balanced device chip connect the 4th ESD cores 5th end of piece, the 6th end connection HDMI signal transactings of the 4th ESD chip and the RXCP ends of encryption chip；
The TX20P ends of the HDMI signal transactings and encryption chip connect the RX2- ends of HDMI out connectors, described The TX20M ends of HDMI signal transactings and encryption chip connect the RX2+ ends of HDMI out connectors, the HDMI signal transactings and The TX10P ends of encryption chip connect the TX10M of the RX1- ends of HDMI out connectors, the HDMI signal transactings and encryption chip The TX00P ends connection HDMI outputs of the RX1+ ends of end connection HDMI out connectors, the HDMI signal transactings and encryption chip The TX00M ends of the RX0- ends of connector, the HDMI signal transactings and encryption chip connect the RX0+ ends of HDMI out connectors, The TXC0P ends of the HDMI signal transactings and encryption chip connect the RXC- ends of HDMI out connectors, at the HDMI signals The TXC0M ends of reason and encryption chip connect the RXC+ ends of HDMI out connectors；The HDMI signal transactings and encryption chip EQ ends connect the 1st end, the 2nd end and the 3rd end of HDCP and EQ switches；
The P34 ends of the second singlechip controller connect the SCL ends of HDMI out connectors, the second singlechip control The P35 ends of device processed connect the SDA ends of HDMI out connectors, the P30 ends connection HDMI signals of the second singlechip controller Process and the SCL1 of encryption chip（RSVD2）End, the P31 ends of the second singlechip controller connect HDMI signal transactings and add The SDA1 of close chip（NC）End, the P32 ends connection HDMI signal transactings of the second singlechip controller and encryption chip SCL3 ends, the P33 ends connection HDMI signal transactings of the second singlechip controller and the SDA3 ends of encryption chip, described second The P27 ends connection HDMI signal transactings of singlechip controller and the EXT_RSTB ends of encryption chip, the second singlechip control 4th end of the P50 ends connection HDCP and EQ switches of device.
In described HDMI extender receiving terminals, second drive module include the second infrared signature reduction unit, Second amplification chip of model LMH6643MM, the 2nd IR signal shaping chips of model 74LVC14, the second gain parameter Setting unit, the 7th magnetic bead, the 8th magnetic bead, the second triode and the second pull-up resistor；
Wherein：The second infrared signature reduction unit include the 15th resistance, the 16th resistance, the 17th resistance, the 18 resistance, the 19th resistance, the 20th resistance, the 21st resistance and the 22nd resistance；Second gain parameter is arranged Unit includes the 23rd resistance, the 24th resistance and the 25th resistance；
3rd end of the second infrared receiver interface and the 5th end connect the 1A ends of the 2nd IR signal shaping chips, and described the The 2Y ends of two IR signal shaping chips connect the B+ ends of the first amplification chip, the 6Y ends connection of the IR signal shaping chips The base stage of the second triode, the colelctor electrode of the second triode connect 5V feeder ears and second infrared by second pull-up resistor 3rd end of emission interface and the 5th end, the grounded emitter of the second triode；
The B- ends of second amplification chip are connected the TX_D1+ ends of the 2nd RJ45 network interfaces by the 7th magnetic bead, are also divided Not Tong Guo the 15th resistance, the 16th resistance, the 17th resistance and the 18th resistance eutral grounding, also respectively by the 19th resistance, 20th resistance, the 21st resistance and the 22nd resistance connect the BOUT ends of the second amplification chip, and described second amplifies core The A- ends of piece by the 23rd resistance eutral grounding, also pass sequentially through the 24th resistance, the 25th connection the 2nd IR signals it is whole The 4A ends of shape chip, the A+ ends of second amplification chip connect the BI-D3+ of the 2nd RJ45 network interfaces by the second magnetic bead End.
A kind of single netting twine HDMI extender Transmission systems, including described HDMI extenders launch terminal and described HDMI Extender receiving terminal；The HDMI extenders launch terminal and HDMI extenders receiving terminal are by a netting twine connection, institute Netting twine is stated for transmitting HDMI signals and infrared signal.
Compared to prior art, HDMI extender launch terminals, receiving terminal and extender transmission system that the present invention is provided System, receives the HDMI signals of high-definition signal broadcast source output, by a HDMI processing modules pair by HDMI connector module After HDMI signals are processed and decoded, then decoded HDMI signals are carried out into coupling processing by HDMI output drivings module, Then by a RJ45 network interfaces by the 2nd RJ45 network interfaces of HDMI signal outputs to HDMI extender receiving terminals, Afterwards coupling processing, Jing Guo are carried out to the HDMI data being input into by the HDMI input uniforms module of HDMI extender receiving terminals After two HDMI processing modules are processed and encrypted, HDMI signals are sent to HDMI receiving devices by HDMI out connectors, Single network cable transmission HDMI signals are realized, installation and maintenance difficulty, and low cost is greatly reduced, is the very big of prior art It is progressive.
Description of the drawings
The structured flowchart of the HDMI extender launch terminals that Fig. 1 is provided for the present invention.
The circuit diagram of HDMI connector module in the HDMI extender launch terminals that Fig. 2 is provided for the present invention.
The circuit diagram of a HDMI processing modules in the HDMI extender launch terminals that Fig. 3 is provided for the present invention.
The circuit diagram of HDMI output driving modules in the HDMI extender launch terminals that Fig. 4 is provided for the present invention.
The circuit of EDID switches and the first singlechip controller in the HDMI extender launch terminals that Fig. 5 is provided for the present invention Figure.
The circuit diagram of the first drive module in the HDMI extender launch terminals that Fig. 6 is provided for the present invention.
The structured flowchart of the HDMI extender receiving terminals that Fig. 7 is provided for the present invention.
The circuit diagram of HDMI input uniform modules in the HDMI extender receiving terminals that Fig. 8 is provided for the present invention.
The circuit diagram of the 2nd HDMI processing modules in the HDMI extender receiving terminals that Fig. 9 present invention is provided.
HDCP and EQ switches and second singlechip controller in the HDMI extender receiving terminals that Figure 10 present invention is provided Circuit diagram.
The circuit diagram of the second drive module in the HDMI extender receiving terminals that Figure 11 present invention is provided.
Specific embodiment
The present invention provides a kind of HDMI extenders launch terminal, receiving terminal and extender Transmission system, realizes and passes through Single netting twine CET5E or CAT6 can just realize the transmission of uncompressed HDMI signals, and comprising the transmission of IR signals, and non-used New integration digital video technology HD BASE-T, it is easy for installation using single netting twine on the basis of cost-effective, it is relative with Double netting twine technologies, installation difficulty is substantially reduced, also reduces material cost, makes Consumer's Experience more preferably.
To make the purpose of the present invention, technical scheme and effect clearer, clear and definite, develop simultaneously referring to the drawings embodiment pair The present invention is further described.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention Limit the present invention.
Fig. 1 is referred to, the structured flowchart of its HDMI extender launch terminal provided for the present invention.As shown in figure 1, described Launch terminal includes HDMI connector module 101, a HDMI processing modules 102, HDMI output drivings module 103 and first RJ45 network interfaces 104, the HDMI connector module 101, a HDMI processing modules 102, HDMI output drivings module 103 It is sequentially connected with a RJ45 network interfaces 104.
Wherein, the HDMI connector module 101 is used to receive the HDMI signals of high-definition signal broadcast source output, this place Broadcast source is stated including DVD, BD PLAYER etc., the HDMI signals include audio signal, vision signal, state of signal etc.；Institute Stating a HDMI processing modules 102 is used to that the HDMI signals to be processed and decoded；The HDMI output drivings module 103 For carrying out processing output AC coupled signals to the signal that a HDMI processing modules 102 are exported, at the AC coupled of data Reason conveniently realizes the conversion of level, and the circulation for making data is more convenient；The first RJ45 network interfaces are used to export HDMI signals, The present invention is sent out HDMI signals using RJ45 network interfaces well known in the art, draws materials conveniently, more reduces cost.
Specifically, after the HDMI connector module 101 receives the HDMI signals of broadcast source, by the HDMI signals A HDMI processing modules 102 are delivered to, HDMI signals are processed and decoded by a HDMI processing modules 102, And data are delivered to into HDMI output drivings module 103 carry out the coupling processing of HDMI signal datas, then by after coupling HDMI signal datas are delivered to HDMI extender receiving terminals by a RJ45 interfaces 104, and the present invention is by handing over HDMI signals Stream coupling processing, facilitates the transmission of data, realizes only transmitting high definition HDMI signal with a data lines.
Further, it is contemplated that HDMI receiving devices（Such as the LCD TV with HDMI inputs）The uncertainty of configuration【Such as Band HDCP（High-Bandwidth Digital Content Protection, high-definition digital content protecting）TV, without HDCP TVs】, the launch terminal that the present invention is provided is also including EDID switches 105 and the first singlechip controller 106, the EDID Switch 105 connects a HDMI processing modules 102 by first singlechip controller 106.Wherein, first single-chip microcomputer Controller 106 is used to for the signal of the output of EDID switches 105 to feed back to a HDMI processing modules 102；At first HDMI Reason module 102 is additionally operable to receive the control signal of the first singlechip controller 106, and makes corresponding setting.It is being embodied as When, for band HDCP（High-bandwidth Digital Content Protection HDCP skills Art）TV or without HDCP TVs, arranges manually the mode of operation of the EDID switches 105, when EDID switches set by user After one of which pattern, a HDMI processing modules 102 will carry out decoding process according to corresponding control information.Its In, EDID switch can analog back-end HDMI receiving devices EDID information（Such as judge whether LCD TV supports that 1080P believes Number, whether audio frequency supports that DOLBY is decoded）Setting to being switched by EDID, can export the video point for being adapted to difference TV Resolution or the audio frequency of support, because also eliminating DDC passages this two data lines in single netting twine, because DDC is except reading rear end electricity Depending on EDID information outside, it is also desirable to do regularly HDCP verification, so the present invention carries out HDCP in HDMI extenders launch terminal The purpose of decoding, exactly encrypts to cancel audio-video signal（Decoding process is carried out by a HDMI processing modules 102）. By rear end HDMI extenders receiving terminal according to HDMI receiving devices whether possess HDCP decoding situation increased HDCP and EQ is switched, and is encrypted again so as to can normally insert audio frequency and video（HDCP and EQ switches will be described in detail hereinafter）.
Preferably, it is contemplated that in use, user may be believed the high definition for connecting HDMI extender launch terminals Number broadcast source or the display device to connecting HDMI extender receiving terminals carry out Remote, it is necessary to the launch terminal Infrared remote can be carried out to send and receive, the HDMI extenders launch terminal also include the first infrared receiver interface 107, the One infrared emission interface 108, the first driver element 109 and the first isolated location 110.Wherein, HDMI connector module 101 is also used In transmission infrared signal, first driver element 109 is used to be driven infrared signal and amplify；First isolation is single Unit 110 is used to prevent HDMI clock signals and ground short circuit.The first infrared receiver interface 107 and the first infrared emission interface 108 connect HDMI output drivings module 103 and a RJ45 network interfaces 104 by the first drive module 109, described first every Connect the HDMI output drivings module 103 and a RJ45 network interfaces 104 from unit 110.Due to the HDMI signals Jing The coupling processing of HDMI output drivings module 103 is crossed, so herein infrared signal still can in a RJ45 network interfaces 104 The transmission of safety, is not affected by the HDMI signals.
Fig. 2 is seen also, in the launch terminal that the present invention is provided, the HDMI connector module 101 includes HDMI Input connector 1011, an ESD（Electro-Static discharge, Electro-static Driven Comb）Chip EU1 and the second ESD chip EU2, wherein the first ESD chip EU1 and the second ESD chip EU2 are using the integrated core of model ESD5V3U4U-HDMI Piece.
Specifically, HDMI signals need to be linked into the first ESD chip EU1 and second by the HDMI input connectors 1011 ESD chip EU2, carries out the transmission of HDMI signal datas；The RXC- ends of the HDMI input connectors 1011 connect an ESD cores 1st end of piece EU1, the RXC+ ends of the HDMI input connectors 1011 connect the 2nd end, the HDMI of the first ESD chip EU1 The RX0- ends of input connector 1011 connect the 4th end, the RX0+ of the HDMI input connectors 1011 of the first ESD chip EU1 5th end of the first ESD chip EU1 of end connection, the RX1- ends of the HDMI input connectors 1011 connect the second ESD chip EU2 The 1st end, the HDMI input connectors 1011 RX1+ ends connect the second ESD chip EU2 the 2nd end, the HDMI input The RX2- ends of connector 1011 connect the 4th end of the second ESD chip EU2, the RX2+ ends of the HDMI input connectors 1011 connect Connect the 5th end of the second ESD chip EU2.
Meanwhile, Fig. 3 is seen also, in the launch terminal that the present invention is provided, a HDMI processing modules 102 include The HDMI processors 1021 of model SII9187 and the analog multiplexer 1022 of model MC74LVXT4052.
It is embodied as, the RXC- ends of the HDMI processors 1021 connect 9 ends of the first ESD chip EU1, the HDMI The RXC+ ends of processor 1021 connect 8 ends of the first ESD chip EU1, the RX0- ends connection first of the HDMI processors 1021 7 ends of ESD chip EU1, the RX0+ ends of the HDMI processors 1021 connect 6 ends of the first ESD chip EU1, at the HDMI The RX1- ends of reason device 1021 connect 9 ends of the second ESD chip EU2, and the RX1+ ends of the HDMI processors 1021 connect the 2nd ESD 8 ends of chip EU2, the RX2- ends of the HDMI processors 1021 connect 7 ends of the second ESD chip EU2, the HDMI processors 1021 RX2+ ends connect 6 ends of the second ESD chip EU2.The CBUS-HID ends connection HDMI of the HDMI processors 1021 is defeated Enter the HTPLUG ends of connector 1011, the X ends of the analog multiplexer 1022 connect the SDA of HDMI input connectors 1011 End, the Y ends of the analog multiplexer 1022 connect the SCL ends of HDMI input connectors 1011.HDMI input connectors The 1011 HDMI signals for receiving are exported to institute after the first ESD chip EU1 and the second ESD chip EU2 carry out antistatic process State HDMI processors to be processed and decoded, SDA bi-directional datas and SCL clock data are delivered to into mould after the process of HDMI processors In intending multiplexer 1022.
Fig. 5 is seen also, the INT ends of the HDMI processors 1021 connect first singlechip controller 106 PD3 ends, the X1 ends of the CSDA ends connection analog multiplexer 1022 of the HDMI processors 1021 and the first Single-chip Controlling Device 106, the Y1 ends of the CSCL ends connection analog multiplexer 1022 of the HDMI processors 1021 and the first Single-chip Controlling The PB/SCL ends of device 106, the DSCL ends of the HDMI processors 1021 connect the Y0 ends of analog multiplexer 1022, described The DSDA ends of HDMI processors 1021 connect the X0 ends of analog multiplexer 1022.Is received by the HDMI processors 1021 The control data of the transmission of one single-chip microcomputer 106, facilitates the HDMI processors 1021 to enter row mode conversion, and to HDMI signals phase is carried out The process answered.
Fig. 4 is seen also, in the HDMI extenders launch terminal, the HDMI output drivings module 103 includes First AC coupled unit 1031, and the first driving chip DU1 and the second driving chip DU2 of model MAX3814；Wherein, The first AC coupled unit 1031 include the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th Electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7 and the 8th electric capacity C8.
Specifically, at the IND- ends connection HDMI of the INA+ ends of the first driving chip DU1 and the second driving chip DU2 The IND+ ends connection HDMI of the TXC- ends of reason device 1021, the INA- ends of the first driving chip DU1 and the second driving chip DU2 The INC- ends connection of the TXC+ ends of processor 1021, the INB+ ends of the first driving chip DU1 and the second driving chip DU2 The INC+ ends of the TX0- ends of HDMI processors 1021, the INB- ends of the first driving chip DU1 and the second driving chip DU2 connect Connect the INB- ends at the TX0+ ends of HDMI processors 1021, the INC+ ends of the first driving chip DU1 and the second driving chip DU2 The INB+ of the TX1- ends of connection HDMI processors 1021, the INC- ends of the first driving chip DU1 and the second driving chip DU2 End connects the TX1+ ends of HDMI processors 1021, the IND+ ends of the first driving chip DU1 and the second driving chip DU2's INA- ends connect the TX2- ends of HDMI processors 1021, the IND- ends of the first driving chip DU1 and the second driving chip DU2 INA+ ends connection HDMI processors 1021 TX2+ ends.
Further, the OUTC- ends of the OUTB+ ends of the first driving chip DU1 and the second driving chip DU2 are by the Two electric capacity C2 connect the RX-D2- ends of a RJ45 network interfaces 104；The OUTB- ends and second of the first driving chip DU1 The OUTC+ ends of driving chip DU2 connect the RX-D2+ ends of a RJ45 network interfaces by the 7th electric capacity C7；Described first drives The OUTB- ends of the OUTC+ ends of chip DU1 and the second driving chip DU2 connect a RJ45 network interfaces by the 8th electric capacity C8 The OUTB+ ends of 104 BI_D3- ends, the OUTC- ends of the first driving chip DU1 and the second driving chip DU2 pass through the 3rd Electric capacity C3 connects the BI-D3+ ends of a RJ45 network interfaces；The OUTD- ends of the first driving chip DU1 and second drive core The OUTA+ ends of piece DU2 connect the TX_D1+ ends of a RJ45 network interfaces 104 by the 4th electric capacity C4, and described first drives core The OUTA- ends of the OUTD+ ends of piece DU1 and the second driving chip DU2 connect a RJ45 network interfaces 104 by the first electric capacity C1 TX_D1- ends, the OUTD- ends of the OUTA+ ends of the first driving chip DU1 and the second driving chip DU2 pass through the 5th electric capacity C5 connects the BI-D4- ends of a RJ45 network interfaces 104, and the OUTA- ends of the first driving chip DU1 and second drive core The OUTD+ ends of piece DU2 connect the BI-D4+ ends of a RJ45 network interfaces 104 by the 6th electric capacity C6.HDMI processors 1021 Decoded HDMI signals are driven process by the first driving chip DU1 and the second driving chip DU2, then through the first exchange The coupling processing of coupling unit 1031, it is then outside by a RJ45 interfaces 104（That is HDMI extenders receiving terminal）Send.
Referring to Fig. 5, in its HDMI extender launch terminal provided for the present invention the first singlechip controller with The circuit diagram of EDID switches.In the present embodiment, first singlechip controller 106 adopts the collection of model STM8S103FX Into chip, as illustrated, the INT ends of the PD3 ends connection HDMI processors 1021 of first singlechip controller 106, first 6th end of the PC5 ends connection EDID switches 105 of singlechip controller 106, the PC6 ends connection of the first singlechip controller 106 7th end of EDID switches 105 and the 8th end of the PC7 ends connection EDID switches 105 of the first singlechip controller 106, the first monolithic The PB4/SCL ends of machine controller 106 connect the CSCL ends of HDMI processors 1021 and the Y1 ends of analog multiplexer 1022, the The CSDA ends of the PB5/SDA ends connection HDMI processors 1021 of one singlechip controller 106 and analog multiplexer 1022 X1 ends；The PC3 ends of the first singlechip controller 106 connect the A ends of the analog multiplexer 1022.User is manually controlled EDID switches processed, by control information（Such as need the control instruction for encrypting HDMI signals）It is transferred to first singlechip controller 106, control information is transmitted from first singlechip controller 106 to HDMI processors 1021, and then control at a HDMI Reason module 102 carries out corresponding decoding operate.
In the present embodiment, and using outside EDID switches 105 manually whether control HDMI outputs need encryption, convenient visitor Family with HDCP TVs or without the TV of HDCP for using.Because EDID switches are used only to the EDID letters of analog back-end TV Breath, and because single netting twine is without DDC passages, so having to believe to HDMI in HDMI extenders transmitting terminal simulation EDID information Number player, such as DVD, thus HDMI extenders transmitting terminal all the time all in HDCP decodings in, that is, send out HDMI extenders Penetrate end only carries out HDCP verifications with DVD player, after relatively testing successfully, the DHMI signals do not encrypted just is exported, by model First driving chip and the second driving chip of MAX3814 is transferred to the HDMI extender receiving terminals of rear end, is prolonged by HDMI The HDMI signal transactings and encryption chip of model EP9132N in long device receiving terminal again with HDMI receiving devices（Such as liquid Brilliant TV）Between carry out HDCP checkings, if HDCP is proved to be successful, TV then normal output image such as stays some TVs or aobvious Show that device does not support HDCP, now, it is only necessary to the HDCP and EQ switch that HDMI extends receiver is set to into OFF, then EP9132 HDCP checkings would not be carried out with TV, just directly go out image.
SRAM of the inside of the first HDMI processing modules 102 with 256K bytes（Static RAM static randoms are stored Device）Support the editor of EDID.That is HDMI extenders transmitting terminal EDID is processed into that 7 kinds of fixed EDID are additional a kind of to be learnt EDID, so as to support the netting twine of different length, its 8 kinds of patterns are specific as follows：
Fig. 6 is seen also, the circuit of the first drive module in its HDMI extender launch terminal provided for the present invention Figure.As shown in fig. 6, first drive module includes the of the first infrared signature reduction unit 1091, model LMH6643MM The first IR signal shaping chip SU1 of one amplification chip AU1, model 74LVC14, the first gain parameter setting unit 1092, Filter unit 1092, the first magnetic bead L1, the second magnetic bead L2, the first triode Q1 and the first pull-up resistor R13.
Specifically, the first infrared signature reduction unit 1091 includes first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7 and the 8th resistance 8；First gain parameter sets Unit 1092 is put including the 9th resistance R9, the tenth resistance R10 and the 11st resistance R11；The filter unit 1093 includes the 9th Electric capacity C9 and the tenth electric capacity C10.
The infrared signal that the first infrared receiver interface 107 is received（Such as the infrared signal that remote control sends）, through IR Signal shaping and drive and enhanced processing, IR signal attenuations after, by the 4th end of a RJ45 network interfaces 104 transmit to The 1st end of a RJ45 network interfaces 104 is carried out to HDMI receiving devices in HDMI extender receiving terminals（Such as television set）Enter Row control.First infrared emission interface 108 is used for emission infrared signal, and the infrared signal is by a RJ45 network interfaces 104 the 4th end and the transmission of the first infrared receiver interface 107 are provided, and the infrared control signal is sent to high-definition signal and is played Source is controlled accordingly.
In addition, first isolated location 110 includes the 3rd magnetic bead L3, the 4th magnetic bead L4 and the 12nd resistance R12.Its In, described 3rd magnetic bead L3 one end connects the BI-D4- ends of the 5th electric capacity C5 and a RJ45 network interfaces 104, and the other end passes through 4th magnetic bead L4 is grounded；Described resistance R12 one end connects the BI-D4+ ends of the 6th electric capacity C6 and a RJ45 network interfaces 104. The use of the 3rd magnetic bead L3 and the 4th magnetic bead L4 is to prevent HDMI signal grounds.Preferably, it is to ensure HDMI signals Effectively isolate with ground when sending, and in order that infrared signal is more effectively passed with HDMI signals using same netting twine Defeated, the first magnetic bead L1 and the second magnetic bead L2 adopts specification for 3000 ohm, the magnetic bead of 100MHZ, realizes a RJ45 nets The TX_C signals of network interface 104 with ground isolate, will HDMI clock signal with isolate.
It is embodied as, the 3rd end of the first infrared receiver interface 107 and the 5th end connect an IR signal shaping cores The 1A ends of piece SU1, the B+ ends of the first amplification chip AU1 of 2Y ends connection of the IR signal shaping chip SU1, described first The 6Y ends of IR signal shaping chip SU1 connect the base stage of the first triode Q1, and the colelctor electrode of the first triode Q1 is by described the One pull-up resistor R13 connects the 3rd end and the 5th end of 5V feeder ears and the first infrared emission interface 107, and the first triode Q1's sends out Emitter grounding.
Further, the B- ends of the first amplification chip AU1 connect a RJ45 network interfaces by the first magnetic bead L1 104 BI-D3+ ends, also respectively by first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4 ground connection, also divide Not Tong Guo the 5th resistance R5, the 6th resistance R6, the 7th resistance R7 and the 8th resistance R8 connect the BOUT of the first amplification chip AU1 End, the A- ends of the first amplification chip AU1 by the 11st resistance R11 ground connection, it is electric also by the tenth resistance R10 connections the 9th One end of resistance R9, the AOUT ends of the first amplification chip AU1 connect one end of the 9th resistance R9, the other end of the 9th resistance R9 Connect the 4A ends of an IR signal shaping chip SU1, be also grounded by the 9th electric capacity C9 and the tenth electric capacity C10 respectively, described the The A+ ends of one amplification chip AU1 connect the TX_D1+ ends of a RJ45 network interfaces 104 by the second magnetic bead L2.
The present invention using RJ45 network interface transfers TMDS 4 groups of network signals (such as RXC-, RXC+ in Fig. 3 and Fig. 4, RX0-, RX0+, RX1-, RX1+, RX2-, RX2+), and make the first infrared receiver interface 107 receive IR signals to have to pass through the One infrared attenuating unit 1091 by IR signal attenuations to 50-90mV (p-p) left and right, while the present invention is coupled to HDMI signals Process, enable infrared signal and TMDS signals by same network cable transmission, and do not result in data perturbation.In infrared remote control In the processing procedure of IR signals, the signal that the first infrared receiver interface 107 is received, it is necessary to through driving, and by infrared signal 50-90mV (p-p) left and right is decayed to, and this signal infrared signature reduction amplitude is unsuitable excessive, such as excessive impact HDMI TMDS Signal.Therefore the process of IR signals is also the present invention by single netting twine Successful transmissions infrared signal and HDMI TMDS signals Key Design.
The present invention also provides a kind of HDMI extenders receiving terminal, refers to Fig. 7, and it extends for the HDMI that the present invention is provided The structured flowchart of device receiving terminal.As shown in fig. 7, the receiving terminal includes：2nd RJ45 network interfaces 201, HDMI are input into Balance module 202, the 2nd HDMI processing modules 203 and HDMI out connectors 204；The 2nd RJ45 network interfaces 201, HDMI input uniforms module 202, the 2nd HDMI processing modules 203 and HDMI out connectors 204 are sequentially connected；Described first RJ45 network interfaces 104 are connected by netting twine with the 2nd RJ45 network interfaces 201.
Wherein, the 2nd RJ45 network interfaces 201 be used for by netting twine reception HDMI signals, the HDMI signals from A RJ45 network interfaces 104 described in above-mentioned launch terminal, as shown in Figure 1；The HDMI input uniforms module 202 is used for AC coupled process and amplification are carried out to the HDMI signals of the output of the 2nd RJ45 network interfaces 201；2nd HDMI processes mould Block 203 is used to process the signal of the output of HDMI input uniforms module 202 and be encrypted；The HDMI out connectors 204 HDMI receiving devices are given for exporting HDMI signals（Such as HDTV）Play.
In the specific implementation, the 2nd RJ45 network interfaces 201 receive a RJ45 network interfaces 104 by netting twine After the HDMI signals of transmission, the HDMI signal outputs to HDMI input uniforms module 202 are carried out into AC coupled process and is put Greatly, then by 203 pairs of HDMI signals of the 2nd HDMI processing modules processed and encrypted, then by the HDMI signals Exported to HDMI receiving devices by HDMI out connectors 204 and played out.
Further, the receiving terminal also includes HDCP and EQ switches 205 and second singlechip controller 206, described HDCP and EQ switches 205 connect HDMI input uniforms module 202 by second singlechip controller 206 and the 2nd HDMI processes mould Block 203.Wherein, the second singlechip controller 206 is defeated for the signals of the output of HDCP and EQ switches 205 to be fed back to into HDMI Enter the HDMI processing modules 203 of balance module 202 and the 2nd, HDCP and EQ equalizer switches 205 described herein in use principle and Functionally similar with the EDID switches 105 in above-mentioned launch terminal, wherein HDCP and EQ switches 205 are that HDCP switchs+EQ level Switch, wherein, EQ is switched according to different length of mesh wire, or decay of the netting twine of different size to DHMI signals, by MAX3815 Balanced device chip makees a signal equalization amplification signal to HDMI signals, reforming reaches setting for optimal HDMI output signal effects Put switch.HDCP and EQ switches are the toggle switch of 4, and 3 are used for doing EQ signal equalizations, and another one is used for making HDCP switches, HDMI signals is encrypted again, export to video of televising.
Certainly, it is contemplated that user needs what is be connected with HDMI extender launch terminals by HDMI extenders receiving terminal pair High-definition signal broadcast source or the HDMI being connected with HDMI extender receiving terminals by HDMI extenders launch terminal pair are received and set Standby to carry out remotely control, described HDMI extender receiving terminals also include：Second 207, second infrared, infrared receiver interface The drive module 209 of interface 208 and second is penetrated, the second infrared receiver interface 207 and the second infrared emission interface 208 pass through institute State the second drive module 209 and connect the HDMI input uniforms module 202 and the 2nd RJ45 network interfaces 201；Wherein, described Two drive modules 209 are used to be driven infrared signal and amplify.
In the specific implementation, Fig. 8 and Fig. 9 is seen also.As illustrated, in the receiving terminal, the HDMI inputs The balanced device chip BU1 of balance module 202 including model MAX3815, the 3rd ESD chip EU3, the 4th ESD chip EU4, the Two AC coupled units 2021 and the second isolated location 2022, the 3rd ESD chip EU3 and the 4th ESD chip EU4 is adopted The integrated chip of model ESD5V3U4U-HDMI.Wherein, the second AC coupled unit 2021 includes the 11st electric capacity C11, the 12nd electric capacity C12, the 13rd electric capacity C13, the 14th electric capacity C14, the 15th electric capacity C15, the 16th electric capacity C16, 17 electric capacity C17 and the 18th electric capacity C18；The 2nd HDMI processing modules 203 include：The HDMI letters of model EP9132N Number process and encryption chip HU1.
Second isolated location 2022 includes the 5th magnetic bead L5, the 6th magnetic bead L6 and the 14th resistance R14.Wherein, institute The one end for stating the 5th magnetic bead L5 connects the BI-D4- ends of the 18th electric capacity C18 and the 2nd RJ45 network interfaces, and the other end is by the Six magnetic bead L6 are grounded；One end of the 14th resistance R14 connects the BI- of the 17th electric capacity C17 and the 2nd RJ45 network interfaces D4+ ends.Preferably, in order that the second isolated location 2022 reaches and the first isolated location described in HDMI extender launch terminals 1032 identical technique effects, the 5th magnetic bead L5 and the 6th magnetic bead L6 adopts specification for 3000 ohm, the magnetic of 100MHZ Pearl, its principle is identical with above-mentioned first isolated location, and here is omitted.
Specifically, the balanced device chip BU1 receives the 2nd RJ45 network interfaces by the second AC coupled unit 2021 The HDMI signals that the launch terminal conveying of 201 inputs comes；Wherein, the RX0_IN- ends of the balanced device chip BU1 pass through the tenth One electric capacity C11 connects the TX_D1+ ends of the 2nd RJ45 network interfaces 201, and the RX0_IN+ ends of the balanced device chip BU1 are by the 12 electric capacity C12 connect the TX_D1- ends of the 2nd RJ45 network interfaces, and the RX1_IN- ends of the balanced device chip BU1 are by the 14 electric capacity C14 connect the BI-D3+ ends of the 2nd RJ45 network interfaces 201, and the RX1_IN+ ends of the balanced device chip BU1 pass through 15th electric capacity C15 connects the BI_D3- ends of the 2nd RJ45 network interfaces 201, and the RX2_IN- ends of the balanced device chip BU1 lead to Cross the RX-D2+ ends that the 13rd electric capacity C13 connects the 2nd RJ45 network interfaces 201, the RX2_IN+ ends of the balanced device chip BU1 The RX-D2- ends of the 2nd RJ45 network interfaces 201, the RXC_IN+ of the balanced device chip BU1 are connected by the 16th electric capacity C16 End is connected the BI-D4+ ends of the 2nd RJ45 network interfaces 201 by the 17th electric capacity C17, is also connected by the 14th resistance C14 3.3V feeder ears, the RXC_IN- ends of the balanced device chip BU1 connect the 2nd RJ45 network interfaces by the 18th electric capacity C18 201 BI-D4- ends, also pass sequentially through the 5th magnetic bead L5 and the 6th magnetic bead L6 ground connection.
Further, the balanced device chip BU1 passes through the 3rd ESD chip EU3 and the 4th ESD chip EU4, by coupling HDMI signal datas after conjunction are sent to the HDMI signal transactings and encryption chip HU1；Wherein, the balanced device chip BU1 RX0_OUT- ends connect at the 9th end connection HDMI signals of the 1st end of the 3rd ESD chip EU3, the 3rd ESD chip EU3 The RX2M ends of reason and encryption chip HU1, the RX0_OUT+ ends of the balanced device chip BU1 connect the 2nd of the 3rd ESD chip EU3 the End, the 8th end connection HDMI signal transactings of the 3rd ESD chip EU3 and the RX2P ends of encryption chip HU1, the balanced device The RX1_OUT- ends of chip BU1 connect the 7th end connection HDMI letters of the 4th end of the 3rd ESD chip EU3, the 3rd ESD chip EU3 Number process and encryption chip HU1 RX1M ends, the RX1_OUT+ ends of the balanced device chip BU1 connect the 3rd ESD chip EU1's 5th end, the 6th end connection HDMI signal transactings of the 3rd ESD chip EU3 and the RX1P ends of encryption chip HU1, the balanced device core The RX2_OUT- ends of piece BU1 connect the 9th end connection HDMI signals of the 1st end of the 4th ESD chip EU4, the 4th ESD chip EU4 Process and encryption chip HU1 RX0M ends, the RX2_OUT+ ends of the balanced device chip BU1 connect the of the 4th ESD chip EU4 2 ends, the 8th end connection HDMI signal transactings of the 4th ESD chip EU4 and the RX0P ends of encryption chip HU1, the balanced device chip The RXC_OUT+ ends of BU1 connect at the 7th end connection HDMI signals of the 4th end of the 4th ESD chip EU4, the 4th ESD chip EU4 The RXCM ends of reason and encryption chip HU1, the RXC_OUT- ends of the balanced device chip BU1 connect the 5th of the 4th ESD chip EU4 the End, the 6th end connection HDMI signal transactings of the 4th ESD chip EU4 and the RXCP ends of encryption chip HU1.
Further, the HDMI signal transactings and encryption chip HU1 are also needed to according to the HDCP and EQ switches 205 Control signal carries out corresponding pattern（For example it is directed to HDCP TVs, without the pattern of HDCP TVs）Conversion, sees also Figure 10.Wherein, the TX20P ends of the HDMI signal transactings and encryption chip HU1 connect the RX2- of HDMI out connectors 204 The TX20M ends of end, the HDMI signal transactings and encryption chip HU1 connect the RX2+ ends of HDMI out connectors 204, described The TX10P ends of HDMI signal transactings and encryption chip HU1 connect the RX1- ends of HDMI out connectors 204, the HDMI signals Process and encryption chip HU1 TX10M ends connection HDMI out connectors 204 RX1+ ends, the HDMI signal transactings and add The TX00P ends of close chip HU1 connect the RX0- ends of HDMI out connectors 204, the HDMI signal transactings and encryption chip HU1 TX00M ends connection HDMI out connectors 204 RX0+ ends, the TXC0P ends of the HDMI signal transactings and encryption chip HU1 The TXC0M ends connection HDMI of the RXC- ends of connection HDMI out connectors 204, the HDMI signal transactings and encryption chip HU1 The RXC+ ends of out connector 204；The EQ ends connection HDCP and EQ of the HDMI signal transactings and encryption chip HU1 switchs 105 The 1st end, the 2nd end and the 3rd end.
As shown in Figure 10, model EPF011A of the second singlechip controller 206, for by the HDCP and EQ The control signal of switch 205 is transmitted into the HDMI input uniforms module 202 and the 2nd HDMI processing modules 203. When being embodied as, the SCL ends of the P34 ends of the second singlechip controller 206 connection HDMI out connector 204, described the The P35 ends of two singlechip controllers 206 connect the SDA ends of HDMI out connectors 204, the second singlechip controller P30 ends connect the SCL1 of HDMI signal transactings and encryption chip HU1（RSVD2）End, the second singlechip controller 206 P31 ends connect the SDA1 of HDMI signal transactings and encryption chip HU1（NC）End, the P32 ends of the second singlechip controller 206 The SCL3 ends of connection HDMI signal transactings and encryption chip HU1, the P33 ends connection HDMI of the second singlechip controller 206 The SDA3 ends of signal transacting and encryption chip HU1, the P27 ends connection HDMI signal transactings of the second singlechip controller 206 And the EXT_RSTB ends of encryption chip HU1, the P50 ends of the second singlechip controller 206 connect HDCP and EQ switches 205 4th end.
Preferably, in the present embodiment, the operation principle and mode of operation of the 2nd HDMI processing modules 203 with it is described A HDMI processing modules 102 is consistent described in launch terminal；The mode of operation of the HDMI input uniforms module 202 It is as shown in the table, wherein being divided into 8 kinds of mode of operations：
Figure 11 is seen also, the circuit of the second drive module in its HDMI extender receiving terminal provided for the present invention Figure.As shown in figure 11, second drive module 209 includes the second infrared signature reduction unit 2091, model LMH6643MM The second amplification chip AU2, the 2nd IR signal shaping chip SU2 of model 74LVC14, the second gain parameter setting unit 2092nd, the 7th magnetic bead L7, the 8th magnetic bead L8, the second triode Q2 and the second pull-up resistor R26.
Wherein, the second infrared signature reduction unit 2091 include the 15th resistance R15, the 16th resistance R16, the tenth Seven resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21 and the 22nd Resistance R22；The second gain parameter setting unit 2092 includes the 23rd resistance R23, the 24th resistance R24 and the 20th Five resistance R25.
Wherein, the 3rd end of the second infrared receiver interface 207 and the 5th end connect the 2nd IR signal shaping chip SU2's 1A ends, the 2Y ends of the 2nd IR signal shaping chip SU2 connect the B+ ends of the second amplification chip AU2, the 2nd IR signals The 6Y ends of shaping chip SU2 connect the base stage of the second triode Q2, and the colelctor electrode of the second triode Q2 is pulled up by described second Resistance R26 connects the 3rd end and the 5th end of 5V feeder ears and the second infrared emission interface 208, and the emitter stage of the second triode Q2 connects Ground.
The B- ends of the second amplification chip AU2 connect the TX_D1 of the 2nd RJ45 network interfaces 201 by the 7th magnetic bead L7 + end, also respectively by the 15th resistance R15, the 16th resistance R16, the 17th resistance R17 and the 18th resistance R18 ground connection, Respectively by the 19th resistance R19, the 20th resistance R20, the 21st resistance R21 and the 22nd resistance R22 connection second The BOUT ends of amplification chip AU2, the A- ends of the second amplification chip AU2 are grounded, are also led to successively by the 23rd resistance R23 The 4A ends that the 24th resistance R24, the 25th resistance R25 connect the 2nd IR signal shaping chip SU2 are crossed, described second amplifies The A+ ends of chip AU2 connect the BI-D3+ ends of the 2nd RJ45 network interfaces 201 by the 8th magnetic bead L8.Preferably, in order that red External signal more effectively uses same network cable transmission, the 7th magnetic bead L7 and the two or eight magnetic bead L8 to adopt with HDMI signals Specification is 3000 ohm, the magnetic bead of 100MHZ.
The infrared signal that second infrared receiver interface 207 is received is through IR signal shapings, driving and amplification, IR signal attenuations Transmitted to the 4th end of a RJ45 network interfaces, by a HDMI by the 1st end of the 2nd RJ45 network interfaces 201 afterwards After reason module is processed, high-definition signal broadcast source is controlled；Second infrared emission interface 208 is used for red to emission External signal, the infrared signal by the 2nd RJ45 network interfaces 204 the 1st end and the second infrared receiver interface 207 offer is provided, Jing After HDMI input uniforms module and the 2nd HDMI processing modules are processed, HDMI receiving devices are controlled, the present invention is extended by HDMI Device launch terminal and HDMI extenders receiving terminal use same set of infrared signal processing circuit, you can complete the two-way biography of IR signals It is defeated.
The present invention also provides a kind of single netting twine HDMI extender Transmission systems, including above-mentioned HDMI extenders launch terminal and Above-mentioned HDMI extenders receiving terminal；The HDMI extenders launch terminal and HDMI extenders receiving terminal pass through a netting twine Connection, the netting twine is used to transmit HDMI signals and infrared signal.High-definition signal broadcast source is received by HDMI connector module The HDMI signals of output, after by a HDMI processing modules HDMI signals being processed and decoded, then by HDMI output drivings Decoded HDMI signals are carried out coupling processing by module, then by a RJ45 network interfaces by HDMI signal outputs extremely 2nd RJ45 network interfaces of HDMI extender receiving terminals, afterwards by the HDMI input uniform moulds of HDMI extender receiving terminals Block carries out coupling processing to the HDMI data being input into, after the 2nd HDMI processing modules are processed and encrypted, HDMI signals Sent to HDMI receiving devices by HDMI out connectors.And can also transmitted in both directions infrared signal, from HDMI extenders send out Penetrating terminal can send infrared signal to HDMI extenders receiving terminal, also can prolong to HDMI from HDMI extenders receiving terminal Long device launch terminal sends infrared signal, is convenient for users to operate.Specific embodiment and implementation result as above to be described, Do not repeating herein.
In sum, the present invention is provided HDMI extender launch terminals, receiving terminal and extender Transmission system, pass through Coupling processing is carried out to HDMI signals, realizes that single netting twine can transmit HDMI signals, infrared signal can be transmitted again, its have with Lower technique effect：
1st, single network cable transmission HDMI signals need to be only used, and IR control signals, installation difficulty is low, also allows for maintenance； And the function of all chips for using is the intrinsic function of existing chip, the utility model increased, AC coupled, every From, decay etc. hardware resistance, be achieved that single network cable transmission HDMI signals and IR control signals, its low cost；
2nd, 8 kinds of EQ balanced device amplification modes, support the netting twine of different length；
3rd, IR signals and the public same data lines of HDMI differential pairs（Netting twine）, in the feelings for not affecting audio video transmission completely Under condition, two-way infrared IR signal energy simultaneous transmissions are realized, when HDMI receiving devices and display device no longer same room or 50 When rice is remote, two-way IR controls, user operation mode are realized；
4th, can compatible high-clear display and HDTV without HDCP.
It is understood that for those of ordinary skills, with technology according to the present invention scheme and its can send out Bright design in addition equivalent or change, and all these changes or replace the guarantor that should all belong to appended claims of the invention Shield scope.

Claims (6)

1. a kind of HDMI extenders launch terminal, it is characterised in that include：
For receiving the HDMI connector module of the HDMI signals of high-definition signal broadcast source output；
For the HDMI processing modules for being processed the HDMI signals and decoded；
For carrying out processing the HDMI output driving modules of output AC coupled signals to the signal that HDMI processing modules are exported；
For exporting a RJ45 network interfaces of HDMI signals；
EDID is switched；
Signal for EDID to be switched output feeds back to the first singlechip controller of a HDMI processing modules；
First infrared receiver interface；
First infrared emission interface；
For the first drive module for being driven to infrared signal and amplifying；
For preventing the first isolated location of HDMI clock signals and ground short circuit；
The HDMI connector module, a HDMI processing modules, HDM I output drivings modules and a RJ45 network interfaces according to Secondary connection；The EDID switches connect a HDMI processing modules by the first singlechip controller；First infrared receiver Interface and the first infrared emission interface connect HDMI output drivings module and a RJ45 networks by first drive module Interface, first isolated location connects the HDMI output drivings module and a RJ45 network interfaces；
The HDMI connector module includes HDMI input connectors, the first ESD chip and the second ESD chip；First ESD Chip and the second ESD chip are using the integrated chip of model ESD5V3U4U-HDMI；First HDMI processing modules include type Number for SII9187 HDMI processors and model MC74LVXT4052 analog multiplexer；HDMI output driving modules Including the first AC coupled unit, and first driving chip and the second driving chip of model MAX3814, first exchange Coupling unit include the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity and 8th electric capacity；
The RXC- ends of the HDMI input connectors connect the 1st end, the RXC+ of the HDMI input connectors of the first ESD chip 2nd end of the first ESD chip of end connection, the RX0- ends of the HDMI input connectors connect the 4th end, the institute of the first ESD chip The RX0+ ends for stating HDMI input connectors connect the RX1- ends connection of the 5th end of the first ESD chip, the HDMI input connectors 1st end of the second ESD chip, the RX1+ ends of the HDMI input connectors connect the 2nd end, the HDMI of the second ESD chip The RX2- ends of input connector connect the RX2+ ends connection second of the 4th end of the second ESD chip, the HDMI input connectors 5th end of ESD chip；
The RXC- ends of the HDMI processors connect 9 ends of the first ESD chip, the RXC+ ends connection first of the HDMI processors 8 ends of ESD chip, the RX0- ends of the HDMI processors connect 7 ends of the first ESD chip, the RX0+ of the HDMI processors 6 ends of the first ESD chip of end connection, the RX1- ends of the HDMI processors connect 9 ends of the second ESD chip, at the HDMI The RX1+ ends of reason device connect 8 ends of the second ESD chip, and the RX2- ends of the HDMI processors connect 7 ends of the second ESD chip, The RX2+ ends of the HDMI processors connect 6 ends of the second ESD chip；
The INT ends of the HDMI processors connect first singlechip controller, the CSDA ends connection of the HDMI processors The X1 ends of analog multiplexer and the first singlechip controller, the CSCL ends connection analog multiplexer of the HDMI processors The Y1 ends of device and the first singlechip controller, the DSCL ends of the HDMI processors connect the Y0 ends of analog multiplexer, institute The DSDA ends for stating HDMI processors connect the X0 ends of analog multiplexer；
The CBUS-HID ends of the HDMI processors connect the HTPLUG ends of HDMI input connectors, the analog multiplexer X ends connect the SDA ends of HDMI input connectors, the Y ends of the analog multiplexer connect the SCL of HDMI input connectors End；
The INA+ ends of first driving chip and the IND- ends of the second driving chip connect the TXC- ends of HDMI processors, described The INA- ends of the first driving chip and the IND+ ends of the second driving chip connect the TXC+ ends of HDMI processors, and described first drives The INB+ ends of chip and the INC- ends of the second driving chip connect the TX0- ends of HDMI processors, first driving chip The INC+ ends of INB- ends and the second driving chip connect the TX0+ ends of HDMI processors, the INC+ ends of first driving chip and The INB- ends of the second driving chip connect the TX1- ends of HDMI processors, and the INC- ends of first driving chip and second drive The INB+ ends of chip connect the TX1+ ends of HDMI processors, the IND+ ends of first driving chip and the second driving chip INA- ends connect the TX2- ends of HDMI processors, and the IND- ends of first driving chip and the INA+ ends of the second driving chip connect Connect the TX2+ ends of HDMI processors；
The OUTB+ ends of first driving chip and the OUTC- ends of the second driving chip pass through the RJ45 of the second capacitance connection the The RX-D2- ends of network interface；The OUTB- ends of first driving chip and the OUTC+ ends of the second driving chip are electric by the 7th Hold the RX-D2+ ends of the first RJ45 network interfaces of connection；The OUTC+ ends of first driving chip and the second driving chip OUTB- ends by the BI_D3- ends of the RJ45 network interfaces of the 8th capacitance connection the, the OUTC- ends of first driving chip and The BI-D3+ ends that the OUTB+ ends of the second driving chip pass through the RJ45 network interfaces of the 3rd capacitance connection the；Described first drives The TX_D1+ that the OUTD- ends of chip and the OUTA+ ends of the second driving chip pass through the RJ45 network interfaces of the 4th capacitance connection the End, the OUTD+ ends of first driving chip and the OUTA- ends of the second driving chip pass through the RJ45 nets of the first capacitance connection the The TX_D1- ends of network interface, the OUTA+ ends of first driving chip and the OUTD- ends of the second driving chip pass through the 5th electric capacity Connect the BI-D4- ends of a RJ45 network interfaces, the OUTA- ends of first driving chip and the OUTD+ of the second driving chip The BI-D4+ ends that end passes through the RJ45 network interfaces of the 6th capacitance connection the.
2. HDMI extenders launch terminal according to claim 1, it is characterised in that the first singlechip controller adopts type Number for STM8S103FX integrated chip, the PD3 ends of first singlechip controller connect the INT ends of HDMI processors, the 6th end of the PC5 ends connection EDID switches of one singlechip controller, the PC6 ends connection EDID switches of the first singlechip controller The 7th end and the first singlechip controller PC7 ends connection EDID switch the 8th end, the PB4/SCL of the first singlechip controller The CSCL ends of end connection HDMI processors and the Y1 ends of analog multiplexer, the PB5/SDA ends of the first singlechip controller connect Connect the CSDA ends of HDMI processors and the X1 ends of analog multiplexer；The PC3 ends of the first singlechip controller connect the mould Intend the A ends of multiplexer.
3. HDMI extenders launch terminal according to claim 2, it is characterised in that first drive module includes the One infrared signature reduction unit, the first amplification chip of model LMH6643MM, model 74LVC14 an IR signals it is whole Shape chip, the first gain parameter setting unit, filter unit, the first magnetic bead, the second magnetic bead, the first triode and the first pull-up electricity Resistance；
Wherein：The first infrared signature reduction unit include first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th Resistance, the 6th resistance, the 7th resistance and the 8th resistance；The first gain parameter setting unit includes the 9th resistance, the tenth electric Resistance and the 11st resistance；The filter unit includes the 9th electric capacity and the tenth electric capacity；
3rd end of the first infrared receiver interface and the 5th end connect the 1A ends of an IR signal shaping chips, an IR The 2Y ends of signal shaping chip connect the B+ ends of the first amplification chip, the 6Y ends connection first of the IR signal shaping chips The base stage of triode, the colelctor electrode of the first triode connects 5V feeder ears and the first infrared emission by first pull-up resistor 3rd end of interface and the 5th end, the grounded emitter of the first triode；
The B- ends of first amplification chip are connected the BI-D3+ ends of a RJ45 network interfaces by the first magnetic bead, are also led to respectively Cross first resistor, second resistance, 3rd resistor and the 4th resistance eutral grounding, also respectively by the 5th resistance, the 6th resistance, the 7th electric Resistance and the 8th resistance connect the BOUT ends of the first amplification chip, and the A- ends of first amplification chip are connect by the 11st resistance Ground, the one end for also connecting the 9th resistance by the tenth resistance, the AOUT ends of first amplification chip connect the one of the 9th resistance End, the other end of the 9th resistance connects the 4A ends of an IR signal shaping chips, also passes through the 9th electric capacity and the tenth electric capacity respectively Ground connection, the A+ ends of first amplification chip connect the TX_D1+ ends of a RJ45 network interfaces by the second magnetic bead.
4. a kind of HDMI extenders receiving terminal, it is characterised in that include：
For receiving the 2nd RJ45 network interfaces of HDMI signals；
For carrying out the HDMI input uniforms of AC coupled process and amplification to the HDMI signals that the 2nd RJ45 network interfaces are exported Module；
For the 2nd HDMI processing modules that the signal that HDMI input uniforms module is exported is processed and encrypted；
For exporting the HDMI out connectors that HDMI signals are played to HDMI receiving devices；
HDCP and EQ is switched；
For the signal of HDCP and EQ switch outputs to be fed back to into the of HDMI input uniforms module and the 2nd HDMI processing modules Two singlechip controllers；
Second infrared receiver interface；
Second infrared emission interface；
For the second drive module for being driven to infrared signal and amplifying；
The 2nd RJ45 network interfaces, HDMI input uniform modules, the 2nd HDMI processing modules and HDMI out connectors according to Secondary connection；First RJ45 network interfaces of HDMI extender launch terminals are connected by netting twine with the 2nd RJ45 network interfaces；Institute State HDCP and EQ switches and HDMI input uniforms module and the 2nd HDMI processing modules are connected by second singlechip controller；It is described Second infrared receiver interface and the second infrared emission interface connect the HDMI input uniforms mould by second drive module Block and the 2nd RJ45 network interfaces；
The HDMI input uniforms module includes balanced device chip, the 3rd ESD chip, the 4th ESD cores of model MAX3815 Piece, the second AC coupled unit and the second isolated location, the 3rd ESD chip and the 4th ESD chip adopt model The integrated chip of ESD5V3U4U-HDMI；The 2nd HDMI processing modules include：The HDMI signal transactings of model EP9132N And encryption chip；Model EPF011A of the second singlechip controller；The second AC coupled unit includes the 11st Electric capacity, the 12nd electric capacity, the 13rd electric capacity, the 14th electric capacity, the 15th electric capacity, the 16th electric capacity, the 17th electric capacity and the tenth Eight electric capacity；
The TX_D1+ ends that the RX0_IN- ends of the balanced device chip pass through the RJ45 network interfaces of the 11st capacitance connection the 2nd, institute State the TX_D1- end of the RX0_IN+ ends by the RJ45 network interfaces of the 12nd capacitance connection the 2nd of balanced device chip, the equilibrium The BI-D3+ ends that the RX1_IN- ends of device chip pass through the RJ45 network interfaces of the 14th capacitance connection the 2nd, the balanced device chip RX1_IN+ ends by the BI_D3- ends of the RJ45 network interfaces of the 15th capacitance connection the 2nd, the RX2_ of the balanced device chip The RX-D2+ ends that IN- ends pass through the RJ45 network interfaces of the 13rd capacitance connection the 2nd, the RX2_IN+ ends of the balanced device chip lead to The RX-D2- ends of the RJ45 network interfaces of the 16th capacitance connection the 2nd are crossed, the RXC_IN+ ends of the balanced device chip pass through the tenth The BI-D4+ ends of the RJ45 network interfaces of seven capacitance connection the 2nd, also by the 14th resistance connect 3.3V feeder ears, the equilibrium The RXC_IN- ends of device chip pass through the BI-D4- ends of the RJ45 network interfaces of the 18th capacitance connection the 2nd, also pass sequentially through the 5th Magnetic bead and the 6th magnetic bead are grounded；
The RX0_OUT- ends of the balanced device chip connect the 1st end of the 3rd ESD chip, the 9th end of the 3rd ESD chip connects The RX2M ends of HDMI signal transactings and encryption chip are connect, the RX0_OUT+ ends of the balanced device chip connect the 3rd ESD chip 2nd end, the 8th end connection HDMI signal transactings of the 3rd ESD chip and the RX2P ends of encryption chip, the balanced device chip RX1_OUT- ends connect the 4th end of the 3rd ESD chip, the 7th end connection HDMI signal transactings of the 3rd ESD chip and encryption core The RX1M ends of piece, the RX1_OUT+ ends of the balanced device chip connect the 5th end of the 3rd ESD chip, the 6th of the 3rd ESD chip the The RX1P ends of end connection HDMI signal transactings and encryption chip, the RX2_OUT- ends of the balanced device chip connect the 4th ESD cores 1st end of piece, the 9th end connection HDMI signal transactings of the 4th ESD chip and the RX0M ends of encryption chip, the balanced device chip RX2_OUT+ ends connect the 2nd end of the 4th ESD chip, the 8th end connection HDMI signal transactings of the 4th ESD chip and encryption core The RX0P ends of piece, the RXC_OUT+ ends of the balanced device chip connect the 4th end of the 4th ESD chip, the 7th of the 4th ESD chip the The RXCM ends of end connection HDMI signal transactings and encryption chip, the RXC_OUT- ends of the balanced device chip connect the 4th ESD cores 5th end of piece, the 6th end connection HDMI signal transactings of the 4th ESD chip and the RXCP ends of encryption chip；
The TX20P ends of the HDMI signal transactings and encryption chip connect the RX2- ends of HDMI out connectors, the HDMI letters Number process and encryption chip TX20M ends connect HDMI out connectors RX2+ ends, the HDMI signal transactings and encryption core The TX10P ends of piece connect the TX10M ends connection of the RX1- ends of HDMI out connectors, the HDMI signal transactings and encryption chip The TX00P ends connection HDMI out connectors of the RX1+ ends of HDMI out connectors, the HDMI signal transactings and encryption chip RX0- ends, the TX00M ends of the HDMI signal transactings and encryption chip connect the RX0+ ends of HDMI out connectors, described The TXC0P ends of HDMI signal transactings and encryption chip connect the RXC- ends of HDMI out connectors, the HDMI signal transactings and The TXC0M ends of encryption chip connect the RXC+ ends of HDMI out connectors；The EQ ends of the HDMI signal transactings and encryption chip The 1st end, the 2nd end and the 3rd end that connection HDCP and EQ is switched；
The P34 ends of the second singlechip controller connect the SCL ends of HDMI out connectors, the second singlechip controller P35 ends connect HDMI out connectors SDA ends, the second singlechip controller P30 ends connection HDMI signal transactings And the SCL1 of encryption chip（RSVD2）End, the P31 ends connection HDMI signal transactings and encryption core of the second singlechip controller The SDA1 of piece（NC）End, the P32 ends connection HDMI signal transactings of the second singlechip controller and the SCL3 ends of encryption chip, The P33 ends connection HDMI signal transactings of the second singlechip controller and the SDA3 ends of encryption chip, the second singlechip The P27 ends connection HDMI signal transactings of controller and the EXT_RSTB ends of encryption chip, the P50 of the second singlechip controller 4th end of end connection HDCP and EQ switches.
5. HDMI extenders receiving terminal according to claim 4, it is characterised in that second drive module includes the Two infrared signature reduction units, the second amplification chip of model LMH6643MM, model 74LVC14 the 2nd IR signals it is whole Shape chip, the second gain parameter setting unit, the 7th magnetic bead, the 8th magnetic bead, the second triode and the second pull-up resistor；
Wherein：The second infrared signature reduction unit include the 15th resistance, the 16th resistance, the 17th resistance, the 18th Resistance, the 19th resistance, the 20th resistance, the 21st resistance and the 22nd resistance；The second gain parameter setting unit Including the 23rd resistance, the 24th resistance and the 25th resistance；
3rd end of the second infrared receiver interface and the 5th end connect the 1A ends of the 2nd IR signal shaping chips, the 2nd IR The 2Y ends of signal shaping chip connect the B+ ends of the second amplification chip, the 6Y ends connection second of the 2nd IR signal shaping chips The base stage of triode, the colelctor electrode of the second triode connects 5V feeder ears and the second infrared emission by second pull-up resistor 3rd end of interface and the 5th end, the grounded emitter of the second triode；
The B- ends of second amplification chip are connected the TX_D1+ ends of the 2nd RJ45 network interfaces by the 7th magnetic bead, are also led to respectively Cross the 15th resistance, the 16th resistance, the 17th resistance and the 18th resistance eutral grounding, also respectively by the 19th resistance, second Ten resistance, the 21st resistance and the 22nd resistance connect the BOUT ends of the second amplification chip, second amplification chip A- ends by the 23rd resistance eutral grounding, also pass sequentially through the 24th resistance, the 25th resistance connect the 2nd IR signals it is whole The 4A ends of shape chip, the A+ ends of second amplification chip connect the BI-D3+ of the 2nd RJ45 network interfaces by the 8th magnetic bead End.
6. a kind of single netting twine HDMI extender Transmission systems, it is characterised in that include as described in claim 1-3 any one HDMI extender receiving terminals described in HDMI extenders launch terminal and claim 4-5 any one；The HDMI extends , by a netting twine connection, the netting twine is used to transmitting HDMI signals and infrared for device launch terminal and HDMI extenders receiving terminal Signal.
CN201410140265.1A 2014-04-09 2014-04-09 HDMI extender emitting terminal, HDMI extender receiving terminal and extender transmission system Expired - Fee Related CN103986899B (en)

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CN109525797A (en) * 2017-12-14 2019-03-26 海能电子(深圳)有限公司 A kind of single cable extender of data transmission method, HDMI signal
CN108259953A (en) * 2018-03-06 2018-07-06 深圳康佳信息网络有限公司 Interface multiplexing circuit, method for multiplexing interface and the set-top box of set-top box
CN109218812B (en) * 2018-08-30 2019-12-17 广州帝特电子科技有限公司 based on HDMI high definition signal IP network extension equipment
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