CN105120196B - A kind of two-way multiplex system of HDMI and method - Google Patents
A kind of two-way multiplex system of HDMI and method Download PDFInfo
- Publication number
- CN105120196B CN105120196B CN201510516251.XA CN201510516251A CN105120196B CN 105120196 B CN105120196 B CN 105120196B CN 201510516251 A CN201510516251 A CN 201510516251A CN 105120196 B CN105120196 B CN 105120196B
- Authority
- CN
- China
- Prior art keywords
- signal
- processor
- hdmi
- ray machine
- signals
- 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.)
- Active
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention relates to a kind of two-way multiplex systems of HDMI and method, the system comprises：HDMI signal input/output modules for inputting the HDMI signals of different-format to primary processor, are additionally operable to the HDMI signal outputs of unified form；Primary processor drives processor or signal switching processor for input signal to be changed into TTL signal, and is passed through to detect the state of signal shift switch and export TTL signal to ray machine；Ray machine drives processor, and the TTL signal for primary processor to be exported is reduced into picture signal, and the picture signal of reduction is exported to ray machine display；Signal switching processor, the TTL signal for primary processor to be exported are converted into the HDMI signals of unified form.The present invention can facilitate signal to switch by converting input signals into TTL signal；Projecting function and network machine top box kinetic energy are combined into one by the present invention, reduce holistic cost, are reduced line cost, and are occupied little space.
Description
Technical field
The present invention relates to Projection Displays and field of set-top, and in particular to a kind of two-way multiplex system of HDMI and method.
Background technology
At present, existing projector possesses HDMI input ports in the market, but does not possess HDMI output functions.Network machine top
Box has HDMI output functions, does not possess input function but.This has been resulted in the family use, and people generally require while purchase
Two kinds of products of projecting apparatus and network machine top box are bought to meet different demands, this will generate many unnecessary lines, and occupy
Very big domestic space.
The content of the invention
The technical problems to be solved by the invention are in view of the problems of the existing technology, it is two-way multiple to provide a kind of HDMI
Use system and method.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of two-way multiplex systems of HDMI, including：
HDMI signal input/output modules, for inputting the HDMI signals of different-format to primary processor, be additionally operable to by
The HDMI signal outputs of unified form；
Primary processor for the HDMI signals of input to be changed into TTL signal, and controls and exports TTL signal to ray machine
Drive processor or signal switching processor；
Ray machine drives processor, and the TTL signal for primary processor to be exported is reduced into picture signal, and by the figure of reduction
As signal output to ray machine display；
Signal switching processor, the TTL signal for primary processor to be exported are converted into the HDMI signals of unified form, and
It is sent to HDMI signal input/output modules.
The beneficial effects of the invention are as follows：The present invention can facilitate signal to switch by converting input signals into TTL signal；
Projecting function and network machine top box kinetic energy are combined into one by the system of the present invention, are reduced holistic cost, are reduced line cost,
And it occupies little space.
Based on the above technical solutions, the present invention can also be improved as follows.
Further, the HDMI signals input/output module is HDMI alternative chip switch.
Further, the primary processor includes signal shift switch, and the signal shift switch is used to be set according to program
TTL signal is exported to ray machine and drives processor or signal switching processor.
Further, further include：LED drives processor；TTL signal is reduced into picture signal by the ray machine driving processor
While, also generate R/G/B pwm signals；The LED drivings processor is used for the R/G/B of ray machine driving processor output
Pwm signals change into corresponding optical signal, and are transmitted to ray machine display.
Advantageous effect using above-mentioned further scheme is：For ray machine is avoided to drive the picture signal of processor generation too
It is weak, the brightness of vision needs is unable to reach, using the high LED driving processor driving LED light sources of power, projects image
Better effect.
Further, further include：Normal signal input module, the normal signal input module are used for conventional simulation signal
It inputs to primary processor；
The conventional simulation signal of input is converted into TTL signal by the primary processor, and is controlled and exported TTL signal to light
Machine drives processor or signal switching processor.
Further, the conventional simulation signal include AV signals, RGB/YPBPR signals, multi-media signal, wifi signals and
Bluetooth signal.
Further, the primary processor drives processor and signal switching processor by I2C order phase controls ray machine.
A kind of two-way multiplexing methods of HDMI, which is characterized in that comprise the following steps：
The HDMI signals of different-format are inputted to primary processor using HDMI signals input/output module；
Input signal is changed by TTL signal using primary processor, primary processor is by detecting the shape of signal shift switch
TTL signal is exported to ray machine and drives processor or signal switching processor by state；
The TTL signal that primary processor exports is reduced by picture signal using ray machine driving processor, and by the figure of reduction
As signal output to ray machine display；
The TTL signal that primary processor exports using signal switching processor is converted into the HDMI signals of unified form, is adopted
It will unify the HDMI signal outputs of form with HDMI signals input/output module.
The beneficial effects of the invention are as follows：The present invention can facilitate signal to switch by converting input signals into TTL signal；
Projecting function and network machine top box kinetic energy are combined into one by the present invention, reduce holistic cost.
Further, while TTL signal is reduced into picture signal by the ray machine driving processor, R/G/B is also generated
Pwm signals；The R/G/B pwm signals of ray machine driving processor output are changed into corresponding light using LED driving processors to believe
Number, and it is transmitted to ray machine display.
Further, conventional simulation signal is inputted to primary processor using normal signal input module, primary processor will be normal
Rule analog signal is converted into TTL signal and exports.
Description of the drawings
Fig. 1 is the connection block diagram of present system；
Fig. 2 is the method and step flow chart of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, a kind of two-way multiplex systems of HDMI of the present embodiment, including：
HDMI signal input/output modules, for inputting the HDMI signals of different-format to primary processor, be additionally operable to by
The HDMI signal outputs of unified form；HDMI signals input/output module is HDMI alternative chip switch.
Normal signal input module, the normal signal input module are used to input conventional simulation signal to main process task
Device.The conventional simulation signal includes AV signals (AV signals are CVBS composite video signals), (YPBPR believes VGA/YPBPR signals
Number be lightness in video signal, chroma, synchronization pulse), multi-media signal, wifi signals and Bluetooth signal.
Primary processor, for input signal being changed into TTL signal, and is passed through the state general for detecting signal shift switch
TTL signal exports to ray machine and drives processor or signal switching processor.
Ray machine drives processor, and the TTL signal for primary processor to be exported is reduced into picture signal, and by the figure of reduction
As signal output to ray machine display；While TTL signal is reduced into picture signal by ray machine driving processor, R/G/ is also generated
B pwm signals.
LED drives processor, believes for the R/G/B pwm signals of ray machine driving processor output to be changed into corresponding light
Number, and it is transmitted to ray machine display.
Signal switching processor, the TTL signal for primary processor to be exported are converted into the HDMI signals of unified form.
Primary processor drives processor and signal switching processor by I2C order phase controls ray machine.
The present invention can facilitate signal to switch by converting input signals into TTL signal；The system of the present invention will project work(
Can and network machine top box kinetic energy be combined into one, can be used as network machine top box, but also with projecting function, reduce integral into
This, reduces line cost, and occupies little space.
A kind of two-way multiplexing methods of HDMI, comprise the following steps：
(1) the HDMI signals of different-format are inputted to primary processor using HDMI signals either-or switch；Meanwhile it can incite somebody to action
Conventional simulation signal is inputted to primary processor.
(2) the HDMI signals of the different-format of input and conventional simulation signal are changed by TTL signal using primary processor,
And TTL signal is exported.
(3) TTL signal by signal shift switch is exported to ray machine and driven at processor or signal conversion by primary processor
Manage device；Which kind of output primary processor judges to make by detecting the state of signal shift switch, when signal shift switch is 0 shape
During state, TTL signal can be exported to ray machine and drive processor；When signal shift switch state is 1, TTL signal can be exported
To signal switching processor.
(4) when signal shift switch is 0 state, using the ray machine driving processor TTL signal that exports primary processor
Picture signal is reduced into, and the picture signal of reduction is exported to ray machine display, meanwhile, ray machine driving processor also generates R/
R/G/B pwm signals are changed into corresponding optical signal using LED driving processors, and are transmitted to ray machine and show by G/B pwm signals
Show device, realize projection phenomenon function.R/G/B pwm signals are three kinds of lamps of red, green, blue, ray machine driving processor output is red,
Green, blue three kinds of pulse signals are to the high LED light of driving power, LED are not really to scheme again after LED driving processor amplification electric currents
As signal, since the picture signal that ray machine driving processor generates is too weak, be unable to reach the brightness of vision needs, it is necessary to by means of
The high LED light source of power can make image project better effect.
(5) when signal shift switch signal is 1, the TTL signal that is exported primary processor using signal switching processor
It is converted into unifying the HDMI signals of form, the HDMI signal outputs of form will be unified using HDMI signals either-or switch, realized
The function of network machine top box.
The two-way multiplexing methods of HDMI of the present invention can facilitate signal to switch by converting input signals into TTL signal；This
Projecting function and network machine top box function are combined into one by invention, reduce holistic cost.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of two-way multiplex systems of HDMI, which is characterized in that including：
HDMI signal input/output modules, for inputting the HDMI signals of different-format to primary processor, being additionally operable to will be unified
The HDMI signal outputs of form；
Primary processor drives for the HDMI signals of input to be changed into TTL signal, and are controlled to export TTL signal to ray machine
Processor or signal switching processor；
Ray machine drives processor, and the TTL signal for primary processor to be exported is reduced into picture signal, and the image of reduction is believed
Number output is to ray machine display；
Signal switching processor, the TTL signal for primary processor to be exported are converted into the HDMI signals of unified form, and send
Give HDMI signal input/output modules；
Normal signal input module is further included, the normal signal input module is used to input conventional simulation signal to main process task
Device；
The conventional simulation signal of input is converted into TTL signal by the primary processor, and is controlled to export TTL signal to ray machine and be driven
Dynamic processor or signal switching processor.
A kind of 2. two-way multiplex systems of HDMI according to claim 1, which is characterized in that the HDMI signals input/output
Module is HDMI alternative chip switch.
3. the two-way multiplex systems of a kind of HDMI according to claim 1, which is characterized in that the primary processor is cut including signal
Switch is changed, the signal shift switch is used to set to export TTL signal to ray machine according to program that processor or signal to be driven to turn
Change processor.
4. the two-way multiplex systems of a kind of HDMI according to claim 1, which is characterized in that further include：LED drives processor；
While TTL signal is reduced into picture signal by the ray machine driving processor, R/G/B pwm signals are also generated；The LED drives
Dynamic processor is used to the R/G/B pwm signals of ray machine driving processor output changing into corresponding optical signal, and is transmitted to light
Machine display.
5. the two-way multiplex systems of a kind of HDMI according to claim 1, which is characterized in that the conventional simulation signal includes AV
Signal, RGB/YPBPR signals, multi-media signal, wifi signals and Bluetooth signal.
6. according to a kind of any one of claim 1-5 two-way multiplex systems of HDMI, which is characterized in that the primary processor leads to
Cross I2C order phase controls ray machine driving processor and signal switching processor.
7. a kind of two-way multiplexing methods of HDMI, which is characterized in that comprise the following steps：
The HDMI signals of different-format are inputted to primary processor using HDMI signals input/output module；
Input signal is changed by TTL signal using primary processor, primary processor will by detecting the state of signal shift switch
TTL signal exports to ray machine and drives processor or signal switching processor；
The TTL signal that primary processor exports is reduced by picture signal using ray machine driving processor, and the image of reduction is believed
Number output is to ray machine display；
The TTL signal that primary processor exports using signal switching processor is converted into the HDMI signals of unified form, is used
HDMI signals input/output module will unify the HDMI signal outputs of form.
8. the two-way multiplexing methods of a kind of HDMI according to claim 7, which is characterized in that the ray machine driving processor will
While TTL signal is reduced into picture signal, R/G/B pwm signals are also generated；It will be at ray machine driving using LED driving processors
The R/G/B pwm signals of reason device output change into corresponding optical signal, and are transmitted to ray machine display.
9. the two-way multiplexing methods of a kind of HDMI according to claim 7, which is characterized in that will using normal signal input module
Conventional simulation signal is inputted to primary processor, and conventional simulation signal is converted into TTL signal and exported by primary processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516251.XA CN105120196B (en) | 2015-08-20 | 2015-08-20 | A kind of two-way multiplex system of HDMI and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516251.XA CN105120196B (en) | 2015-08-20 | 2015-08-20 | A kind of two-way multiplex system of HDMI and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105120196A CN105120196A (en) | 2015-12-02 |
| CN105120196B true CN105120196B (en) | 2018-05-29 |
Family
ID=54668071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510516251.XA Active CN105120196B (en) | 2015-08-20 | 2015-08-20 | A kind of two-way multiplex system of HDMI and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105120196B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108205512B (en) * | 2016-12-16 | 2021-08-13 | 佛山市顺德区顺达电脑厂有限公司 | High-resolution multimedia interface device and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202475679U (en) * | 2012-01-04 | 2012-10-03 | 深圳市宽宏科技有限公司 | Set top box capable of being connected with display equipment with HDMI interface |
| CN202584678U (en) * | 2012-03-21 | 2012-12-05 | 上海战诚电子科技有限公司 | Video signal conversion device for flat display |
| CN203368657U (en) * | 2013-07-18 | 2013-12-25 | 深圳市迈乐数码科技股份有限公司 | A set top box which realizes synchronization with television set states through an HDMI interface |
| CN104378567A (en) * | 2014-12-06 | 2015-02-25 | 深圳市康凯斯信息技术有限公司 | Portable DLP multimedia intelligent cloud projecting system |
| CN204287706U (en) * | 2014-12-16 | 2015-04-22 | 厦门盈趣科技股份有限公司 | With the smart mobile phone handheld projector of HDMI, MHL interface |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8316163B2 (en) * | 2007-09-10 | 2012-11-20 | John Mezzalingua Associates, Inc. | HDMI-quality content transmission along a single medium |
-
2015
- 2015-08-20 CN CN201510516251.XA patent/CN105120196B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202475679U (en) * | 2012-01-04 | 2012-10-03 | 深圳市宽宏科技有限公司 | Set top box capable of being connected with display equipment with HDMI interface |
| CN202584678U (en) * | 2012-03-21 | 2012-12-05 | 上海战诚电子科技有限公司 | Video signal conversion device for flat display |
| CN203368657U (en) * | 2013-07-18 | 2013-12-25 | 深圳市迈乐数码科技股份有限公司 | A set top box which realizes synchronization with television set states through an HDMI interface |
| CN104378567A (en) * | 2014-12-06 | 2015-02-25 | 深圳市康凯斯信息技术有限公司 | Portable DLP multimedia intelligent cloud projecting system |
| CN204287706U (en) * | 2014-12-16 | 2015-04-22 | 厦门盈趣科技股份有限公司 | With the smart mobile phone handheld projector of HDMI, MHL interface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105120196A (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201928372U (en) | Device for seamlessly switching various input video images | |
| CN103903568B (en) | LED display control card | |
| CN110111730B (en) | Display screen dynamic control system and display screen | |
| CN108234976B (en) | DLP projection display driving system supporting various laser light sources | |
| CN206270889U (en) | The KVM switcher that a kind of many computers are split with picture | |
| CN104243853A (en) | High-definition multimedia interface (HDMI) double-display device and display method | |
| TWI514844B (en) | Timing controller with video format conversion, method therefor, and display system | |
| CN107567132A (en) | Drive circuit, control method and projector | |
| CN105516753B (en) | Liquid-crystal television device and system | |
| CN105120196B (en) | A kind of two-way multiplex system of HDMI and method | |
| KR20140067342A (en) | Lvds interface device for display module connection | |
| CN207938293U (en) | A kind of all-colour LED array drive device based on FPGA | |
| CN106657815B (en) | A kind of video-splicing processing system and method | |
| CN101477782A (en) | 3D full-color display LED module construction and display method thereof | |
| CN108281108A (en) | A kind of all-colour LED array drive device based on FPGA | |
| CN204316624U (en) | A kind of four picture seamless switching video processors | |
| CN207251793U (en) | A kind of matrix switcher of integrated HDBaseT technologies | |
| CN201307211Y (en) | A projection device | |
| CN204859377U (en) | Two -way multiplexing system of HDMI | |
| CN105516626B (en) | Content providing, liquid crystal display device and display system | |
| CN204131610U (en) | A kind of HDMI (High Definition Multimedia Interface) HDMI dual display | |
| CN203775321U (en) | Silicon-based liquid crystal display screen driving device | |
| CN206993272U (en) | A kind of multimedia video converter | |
| CN202602817U (en) | Control and signal processing device for light emitting diode (LED) display | |
| CN203181061U (en) | Cascaded extension multi-screen seamless-switching high-definition video processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |