CN107018347A - A kind of 4K high definitions transmitter - Google Patents
A kind of 4K high definitions transmitter Download PDFInfo
- Publication number
- CN107018347A CN107018347A CN201710366562.1A CN201710366562A CN107018347A CN 107018347 A CN107018347 A CN 107018347A CN 201710366562 A CN201710366562 A CN 201710366562A CN 107018347 A CN107018347 A CN 107018347A
- Authority
- CN
- China
- Prior art keywords
- signal processing
- processing chip
- infrared
- input
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
Abstract
The invention discloses a kind of 4K high definitions transmitter of HD video transmission field, including signal processing chip and power supply, signal processing chip connects infrared input port, infrared output port and HDMI input/output interface, signal processing chip connects audio input end by multidigit audio digital to analog converter chip, signal processing chip passes through RS232 transponder chips and RS232 class data communications, signal processing chip is inputted by SPDIF input ports and SPDIF output ports, export digital audio and video signals, signal processing chip connects HDBaseT interfaces by network transformer, signal processing chip is connected and transmitting network data by chips of Ethernet exchange with RJ45 network terminals.The present invention realizes the digital UNICOM between the video source of high-fidelity and remote display terminals, it is ensured that image quality and definition content ensure 4K, meet the development trend of video industry.
Description
Technical field
It is to be related to a kind of 4K high definitions transmitter specifically the present invention relates to HD video transmission field.
Background technology
Existing high definition Transmission system（Such as AMX DX-RX and DX-TX transmission box）The biography of 4K format videos is not supported
It is defeated, and with the development of video industry, for the demand of the digital UNICOM between the video source and remote display terminals of high-fidelity
Increasingly increase, existing Transmission system can not fully meet the demand in this market.During video fidelity is increased,
For the requirement also more and more higher of transformat, the transmission range of HDMI wire is short, has been not enough to fully meet technology from now on
Need.
Drawbacks described above, is worth solving.
The content of the invention
In order to overcome the shortcomings of existing technology, the present invention provides a kind of 4K high definitions transmitter.
Technical solution of the present invention is as described below：
A kind of 4K high definitions transmitter, it is characterised in that including signal processing chip and power supply,
Audio input end is connected by multidigit audio digital to analog converter chip with the signal processing chip,
Infrared input port is connected with the signal processing chip, and the infrared input records red with the low and high level duration
Outer code value, and the infrared code value is sent to the signal processing chip, the signal processing chip connects with infrared output end
Connect, infrared signal is converted into by infrared emission head, and control infrared equipment, RS232 classes data pass through RS232 transponder chips
It is connected with the signal processing chip,
Digital audio and video signals by SPDIF input ports and SPDIF output ports input, output, the SPDIF input ports and
The SPDIF output ports are connected with digital audio optical-fibre channel with the signal processing chip,
The signal processing chip is connected with network transformer, the network transformer connection HDBaseT interface connections,
HDMI input/output interfaces are connected with the signal processing chip, and HDMI signals are changed into HDBaseT forms is sent to
The signal processing chip, and receive the HDBaseT signals of the signal processing chip transmission and change into HDMI signals,
Network data is connected with RJ45 network terminal interfaces, the RJ45 network terminals by chips of Ethernet exchange with it is described
Signal processing chip is connected.
According to the present invention of such scheme, it is characterised in that the signal processing chip is VS2000TX chips.
According to the present invention of such scheme, it is characterised in that the power supply be direct current 48V 2A adapters power or
POE powers.
According to the present invention of such scheme, it is characterised in that the multidigit audio digital to analog converter chip is at CS5343
Manage chip.
According to the present invention of such scheme, it is characterised in that the infrared input is 3.5mm JACK sockets, described red
Outer output end is 2pin phoenix head interface.
According to the present invention of such scheme, it is characterised in that the RS232 transponder chips external connection RS232 controls
Signal input port, the RS232 control signal inputs mouthful are 3pin phoenix head interface.
According to the present invention of such scheme, it is characterised in that the chips of Ethernet exchange is the ether of IP175D 100,000,000
Network switch chip.
According to the present invention of such scheme, it is characterised in that the signal processing chip is built in transmitter housing.
Further, the upper surface of the transmitter housing is provided with surface radiating mouthful, and its front is provided with panel thermovent.
Further, the transmitter housing rear provided with two RJ45 network terminals interfaces, HDMI inputs/
Output interface, the HDBaseT interfaces, the SPDIF input ports, the SPDIF output ports, RS232 control signals are defeated
Inbound port, infrared output end interface, the audio input port, infrared input end interface and power interface.
Further, the audio input port and the infrared input port are 3.5mm JACK sockets.
Further, the RS232 control signal inputs mouthful are 3pin phoenix head interface.
Further, the infrared output end interface is 2pin phoenix head interface.
According to the present invention of such scheme, its advantage is, the present invention is directed in current high definition Transmission system not
Foot, is converted into HDBaseT by HDMI signals and control signal and carries out network transmission adding distance and ensure that image quality and definition
Content ensures 4K（4K 2K@30Hz YCbCr4:4:4 and 4K 2K@60Hz YCbCr4:2:0）, the development for meeting video industry becomes
Gesture；And the present invention supports HDMI2.0 all key features；Audio is, from the direct transparent transmission of HDMI chipsets, to support institute
There is reference format（Such as Dolby Digital, DTS, Dolby TrueHD etc.）.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the top view of transmitter housing of the present invention.
Fig. 3 is the structure schematic diagram of transmitter housing of the present invention.
Fig. 4 is the front structure schematic diagram of transmitter housing of the present invention.
Signal flow graph when Fig. 5 is RX states of the present invention.
Signal flow graph when Fig. 6 is TX states of the present invention.
In figure, 1, RJ45 network terminal interfaces；2nd, RJ45 network terminals interface；3rd, HDMI input/output interfaces；4、
HDBaseT interfaces；5th, SPDIF input ports；6th, SPDIF output ports；7th, RS232 control signal inputs mouthful；8th, it is infrared defeated
Go out end interface；9th, audio input port；10th, infrared input end interface；11st, power interface；12nd, surface radiating mouthful；13rd, panel dissipates
Hot mouth；14th, LED.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is further described embodiment：
As shown in figure 1, a kind of 4K high definitions transmitter, including signal processing chip and power supply, signal processing chip is
VS2000TX chips；Power supply is that direct current 48V 2A adapters are powered or POE powers, and easily power supply mode improves equipment
Mobility.
Audio input end AUDIO IN are connected by multidigit audio digital to analog converter chip with signal processing chip.Audio is defeated
Enter to hold AUDIO IN to input simulated audio signal using 3.5mm JACK sockets, multidigit audio digital to analog converter chip is CS5343
Process chip.
Infrared input is 3.5mm JACK sockets, and infrared input port is connected with signal processing chip, infrared input
Infrared code value is recorded with the low and high level duration, and infrared code value is sent to signal processing chip；Signal processing chip with
Infrared output end connection, infrared signal is converted into by infrared emission head, and controls infrared equipment, and infrared output end is 2pin phoenix
Phoenix head interface.
The RS232 transponder chips SP232 that RS232 class data pass through+3.3V to+5V is connected with signal processing chip,
RS232 transponder chip external connection RS232 control signal inputs mouthful, RS232 control signal inputs mouthful are 3pin phoenix
Head interface, the recognizable inputoutput data of RS232 transponder chips, to be communicated with master chip.
Digital audio and video signals carry out defeated by SPDIF input port SPDIF IN and SPDIF output port SPDIF OUT
Enter, export, SPDIF input ports and SPDIF output ports are connected with digital audio optical-fibre channel with signal processing chip.
Signal processing chip is connected with H7108 network transformers, network transformer connection HDBaseT interface connections.
HDBaseT signals are communicated by standard HDBaseT interfaces, and HDBaseT2.0 supports highest 20Gbps transmission rate, energy
FULL 3D and 4K x 2K video formats are ideally supported, transmission carries out passing without compression using common CAT5e/6 network cables
Defeated, connector also uses common RJ45 joints, and transmission range has reached 100 meters of 4K or 150 meters of 1080p, in addition, also
Ethernet feature, 100W power supply capacity are provided（PoE）With other control signal passages.
HDMI input/output interfaces are connected with signal processing chip, and HDMI signals are changed into HDBaseT forms is sent to
Signal processing chip, and receive the HDBaseT signals of signal processing chip transmission and change into HDMI signals,
HDMI input/output interfaces connect signal processing chip corresponding pin, receive HDMI signals, and transformat may be up to 4K
（4K 2K@30Hz YCbCr4:4:4 and 4K 2K@60Hz YCbCr4:2:0）, it is converted into HDBaseT forms and is transmitted.
Network data is connected with RJ45 network terminal interfaces, and RJ45 network terminals pass through chips of Ethernet exchange and signal
Process chip is connected, and chips of Ethernet exchange is IP175D 100 m ethernet exchanger chips.2 RJ45 network terminal interfaces
The corresponding pin of IP175D 100 m ethernet exchanger chips is connected to, to receiving network data, and single-chip microcomputer identification is converted
Data are sent to signal processing chip, when signal processing chip is sent out network data, are also first to be sent to IP175D 100,000,000
Chips of Ethernet exchange, is converted to network data format by it and sends.
As in Figure 2-4, signal processing chip is built in transmitter housing, and the upper surface of transmitter housing is provided with surface
Thermovent 12, the LED 14 that its front is used to indicate provided with panel thermovent 13 and 4.
Specifically, transmitter housing rear provided with two RJ45 network terminals interfaces 1 and 2, HDMI input/output interfaces 3,
HDBaseT interfaces 4, SPDIF input ports 5, SPDIF output ports 6, RS232 control signal inputs mouthful 7, infrared output end
Interface 8, audio input port 9, infrared input end interface 10 and power interface 11.
It is preferred that, audio input port 9 and infrared input port 10 are 3.5mm JACK sockets；RS232 control signals
Input port 7 is 3pin phoenix head interface；Infrared output end interface 8 is 2pin phoenix head interface.
As seen in figs. 5-6, signal flow graph of the present invention in RX states and TX states, both differs only in signal
Move towards different.By taking Fig. 5 RX states as an example：
The power supply that power supply provides for 48V 2A external input power or by HDBaseT interfaces is converted into through network transformer
48V 2A power supplys supply POE modules, are 12V dc sources by POE module converters, then turn 5V circuit parts by 12V and be converted into
5V power supplys, 5V power supplys turn 1.0V circuit parts through 5V and are converted into 1.0V to be supplied to processor chips；Turn 1.8V circuit parts through 5V
It is converted into 1.8V and is supplied to processor chips and network switch interface chip；Turn 3.3V circuit parts through 5V and be converted into 3.3V confessions
The chip for being given to network switch interface chip, processor chips and other each signal transactings is powered.
The data of HDBaseT interface HDBaseT forms, through network transformer convert voltage to processor chips
Match somebody with somebody, then broadcast data to processor chips, analyzed and processed by processor chips in house software, by variant categorical data
Exported respectively from corresponding pin：Simulated audio signal is externally exported by analogue audio frequency output pin；HDMI signals are defeated by HDMI
Go out pin externally to export；DAB fiber-optic signal is by being connected to processor corresponding pin, to reach that digital audio-frequency data is defeated
Enter the effect of output；Data debugging, infrared, download program and serial communication are externally exported through each corresponding circuits part respectively.
TX is that each signal is input in Fig. 6, after being integrated into HDBaseT forms through processor chips software, passes through HDBaseT
Interface is externally exported.
The present invention make it possible high-fidelity video source and remote display terminals between digital UNICOM.HDBaseT makes
Farthest transmission 100 meters of the 4K or 150 meters of 1080p of multimedia flow transmission of energy plug and play more than CAT5E cables.For
Transmission of video can reach that unpressed high-fidelity/3D is up to 4K resolution ratio, can be with any standard audio lattice of legend for audio
The mutual ditch of formula, the TV for supporting to authorize with 100M Ethernets ability, hi-fi equipment, computer and other consumer-elcetronics devices
Lead to and immediately access multimedia storage content, possess various control mode（It is infrared etc. including CEC, RS232）, use POE electricity
Source or 48V local power supplies, easily power supply mode improve the mobility of equipment.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Exemplary description has been carried out to patent of the present invention above in conjunction with accompanying drawing, it is clear that the realization of patent of the present invention not by
The limitation of aforesaid way, if the various improvement that the method design of patent of the present invention and technical scheme are carried out are employed, or without
The design of patent of the present invention and technical scheme are directly applied to other occasions by improvement, within the scope of the present invention.
Claims (10)
1. a kind of 4K high definitions transmitter, it is characterised in that including signal processing chip and power supply,
Audio input end is connected by multidigit audio digital to analog converter chip with the signal processing chip,
Infrared input port is connected with the signal processing chip, and the infrared input records red with the low and high level duration
Outer code value, and the infrared code value is sent to the signal processing chip, the signal processing chip connects with infrared output end
Connect, infrared signal is converted into by infrared emission head, and control infrared equipment, RS232 classes data pass through RS232 transponder chips
It is connected with the signal processing chip,
Digital audio and video signals by SPDIF input ports and SPDIF output ports input, output, the SPDIF input ports and
The SPDIF output ports are connected with digital audio optical-fibre channel with the signal processing chip,
The signal processing chip is connected with network transformer, the network transformer connection HDBaseT interface connections,
HDMI input/output interfaces are connected with the signal processing chip, and HDMI signals are changed into HDBaseT forms is sent to
The signal processing chip, and receive the HDBaseT signals of the signal processing chip transmission and change into HDMI signals,
Network data is connected with RJ45 network terminal interfaces, the RJ45 network terminals by chips of Ethernet exchange with it is described
Signal processing chip is connected.
2. 4K high definitions transmitter according to claim 1, it is characterised in that the power supply is adapted to for direct current 48V 2A
Device is powered or POE powers.
3. 4K high definitions transmitter according to claim 1, it is characterised in that the multidigit audio digital to analog converter chip is
CS5343 process chips.
4. 4K high definitions transmitter according to claim 1, it is characterised in that the chips of Ethernet exchange is IP175D
100 m ethernet exchanger chip.
5. 4K high definitions transmitter according to claim 1, it is characterised in that the signal processing chip is built in transmitter
In housing.
6. 4K high definitions transmitter according to claim 5, it is characterised in that the upper surface of the transmitter housing is provided with table
Face thermovent, its front is provided with panel thermovent.
7. 4K high definitions transmitter according to claim 5, it is characterised in that the transmitter housing rear is provided with two institutes
State RJ45 network terminals interface, the HDMI input/output interfaces, the HDBaseT interfaces, the SPDIF input ports, institute
State SPDIF output ports, it is RS232 control signal inputs mouth, infrared output end interface, the audio input port, infrared defeated
Enter end interface and power interface.
8. 4K high definitions transmitter according to claim 7, it is characterised in that the audio input port and described infrared defeated
Inbound port is 3.5mm JACK sockets.
9. 4K high definitions transmitter according to claim 7, it is characterised in that the RS232 control signal inputs mouthful are
3pin phoenix head interface.
10. 4K high definitions transmitter according to claim 7, it is characterised in that the infrared output end interface is 2pin phoenix
Phoenix head interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710366562.1A CN107018347A (en) | 2017-05-23 | 2017-05-23 | A kind of 4K high definitions transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710366562.1A CN107018347A (en) | 2017-05-23 | 2017-05-23 | A kind of 4K high definitions transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107018347A true CN107018347A (en) | 2017-08-04 |
Family
ID=59450347
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710366562.1A Pending CN107018347A (en) | 2017-05-23 | 2017-05-23 | A kind of 4K high definitions transmitter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109151368A (en) * | 2018-09-13 | 2019-01-04 | 广州市保伦电子有限公司 | A kind of small space meeting central control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140016034A1 (en) * | 2012-07-16 | 2014-01-16 | Video Products, Inc. | High definition video extender and method |
| CN204316626U (en) * | 2015-01-17 | 2015-05-06 | 深圳市索飞翔科技有限公司 | HDMI audio frequency and video switching device shifter can be extended |
| CN106604120A (en) * | 2016-12-20 | 2017-04-26 | 深圳市汉科电子股份有限公司 | Extender device for transmitting super-definition audio and video signals over long distances |
| CN206790617U (en) * | 2017-05-23 | 2017-12-22 | 深圳市鸿哲智能系统工程有限公司 | A kind of 4K high definitions transmitter |
-
2017
- 2017-05-23 CN CN201710366562.1A patent/CN107018347A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140016034A1 (en) * | 2012-07-16 | 2014-01-16 | Video Products, Inc. | High definition video extender and method |
| CN204316626U (en) * | 2015-01-17 | 2015-05-06 | 深圳市索飞翔科技有限公司 | HDMI audio frequency and video switching device shifter can be extended |
| CN106604120A (en) * | 2016-12-20 | 2017-04-26 | 深圳市汉科电子股份有限公司 | Extender device for transmitting super-definition audio and video signals over long distances |
| CN206790617U (en) * | 2017-05-23 | 2017-12-22 | 深圳市鸿哲智能系统工程有限公司 | A kind of 4K high definitions transmitter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109151368A (en) * | 2018-09-13 | 2019-01-04 | 广州市保伦电子有限公司 | A kind of small space meeting central control system |
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