CN106713786A - Multimedia high definition output controller for teaching - Google Patents
Multimedia high definition output controller for teaching Download PDFInfo
- Publication number
- CN106713786A CN106713786A CN201710142558.7A CN201710142558A CN106713786A CN 106713786 A CN106713786 A CN 106713786A CN 201710142558 A CN201710142558 A CN 201710142558A CN 106713786 A CN106713786 A CN 106713786A
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- China
- Prior art keywords
- hdmi
- vga
- input
- module
- audio
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000004088 simulation Methods 0.000 claims description 3
- 241001274660 Modulus Species 0.000 claims 1
- 230000010354 integration Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention provides a multimedia high definition output controller for teaching. The multimedia high definition output controller comprises a microcontroller, an analog switch switching module, an HDMI signal switching module, an HDMl to VGA signal conversion module, an HDMI signal frequency divider, a DAC audio converter, an HDMI output interface, an HDMI input module, a VGA input module, an audio input module, a VGA output interface and a power amplifier module, wherein the microcontroller is separately connected with the HDMI signal switching module, the HDMl to VGA signal conversion module and the analog switch switching module; the HDMI input module is connected to the HDMI signal switching module, the HDMI signal switching module is connected to the HDMI signal frequency divider, and the HDMI signal frequency divider is connected to the HDMI output interface, the HDMl to VGA signal conversion module and the DAC audio converter; and user application is facilitated, and user demands are satisfied.
Description
Technical field
The present invention relates to a kind of multimedia high definition o controller for imparting knowledge to students.
Background technology
Multimedia system in the past includes a computer, an object show stand, one piece of electronic whiteboard, a set of audio amplifier, one
Various ancillary equipment such as platform projector are used cooperatively, and are connected and are controlled and be all complex.With the development of technology, occur electricity
The integration of equipments such as brain, show stand, middle control comprehensive multimedia hardware device together.
Authorization Notice No. for CN201378311Y and CN 203909761U invention all come into the open it is such integration electricity
The problem of the integration of equipments that sub- blank, wherein CN201378311Y are solved, CN 203909761U provide one for integrated equipment
Planting being capable of limiting device unlatching authority.Development and the screen enlarging of liquid crystal display with projector's technology, high-definition digital output
Demand more and more higher, middle control on the market at present is all VGA outputs, and VGA cannot meet high-resolution as analog signal transmission
The output demand of rate, therefore there is the high definition digital transmission interface such as DP, HDMI.
The content of the invention
The technical problem to be solved in the present invention, is to provide a kind of multimedia high definition o controller for imparting knowledge to students,
Possess conventional Multi Media controller it is functional on the basis of, emphatically solve video high-definition digital interface and analog interface output ask
Topic.
What the present invention was realized in：A kind of multimedia high definition o controller for imparting knowledge to students, including microcontroller, also
Including analog switch handover module, HDMI signals handover module, HDMI turn VGA signal conversion modules, HDMI signal dividers,
DAC audio converters, HDMI output interface, HDMI input modules, VGA input modules, Audio Input Modules, VGA output interfaces
And power amplifier module, the microcontroller connect respectively the HDMI signals handover module, HDMI turn VGA signal conversion modules with
And analog switch handover module；The HDMI input modules are connected to the HDMI signals handover module, and the HDMI signals are cut
Mold changing block be connected to the HDMI signal dividers, the HDMI signal dividers connect respectively the HDMI output interface,
HDMI turns VGA signal conversion modules and DAC audio converters, and the analog switch handover module connects the HDMI and turns respectively
VGA signal conversion modules, DAC audio converters, VGA input modules, Audio Input Modules, VGA output interfaces and power amplifier mould
Block.
Further, the VGA input modules include an at least VGA input interfaces.
Further, the Audio Input Modules include an at least audio input interface.
Further, the HDMI input modules include an at least HDMI input interfaces.
The advantage of the invention is that：A kind of multimedia high definition o controller for imparting knowledge to students of the present invention, is easy to user to make
With meeting user's request；Teaching one-piece of the invention can realize analog and digital video signal Mixed design, as needed
Selection vision signal wherein all the way is with analog and digital video signal output, and the present invention can be by any simulation all the way
Or data signal is exported in the way of analog signal.
Brief description of the drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of multimedia high definition o controller for imparting knowledge to students of the present invention.
Specific embodiment
Refer to shown in Fig. 1, the present invention is used for the multimedia high definition o controller imparted knowledge to students, including microcontroller, also wraps
Include analog switch handover module, HDMI signals handover module, HDMI and turn VGA signal conversion modules, HDMI signal dividers, DAC
Audio converter, HDMI output interface, HDMI input modules, VGA input modules, Audio Input Modules, VGA output interfaces and
Power amplifier module, the microcontroller connects the HDMI signals handover module, HDMI and turns VGA signal conversion modules and mould respectively
Intend switch handover module；The HDMI input modules are connected to the HDMI signals handover module, and the HDMI signals switch mould
Block is connected to the HDMI signal dividers, the HDMI signal dividers and connects the HDMI output interface, HDMI turn respectively
VGA signal conversion modules and DAC audio converters, the analog switch handover module connect the HDMI and turn VGA letters respectively
Number modular converter, DAC audio converters, VGA input modules, Audio Input Modules, VGA output interfaces and power amplifier module；, institute
Stating VGA input modules includes an at least VGA input interfaces, and the Audio Input Modules include an at least audio input interface, institute
Stating HDMI input modules includes an at least HDMI input interfaces.
This controller possess conventional Multi Media controller it is functional on the basis of, emphatically solve video high-definition digital connect
Mouth and analog interface export problem.This controller includes the controllable projector's switch of control button, computer switch, multimedia equipment
Close；Identity recognition device is used to recognize donor's identity that the unlatching that authorizing the talent can carry out equipment to be used；Data exchange module
For the data communication (USB interface) with PC, communicated with the control of projector (RS232 interfaces)；Audio frequency and video control module, can be real
Existing two-way above VGA input and output switching, two-way above HDMI high definitions input and output switching, HDMI turns VGA outputs.
Audio frequency control module, including microcontroller, analog switch handover module, HDMI signal handover modules, HDMI turn VGA
Signal conversion module, HDMI frequency dividers, DAC audio converters.
Microcontroller is used for the passage switching for controlling simulation to open switching device and HDMI signal handover modules；
Analog switch handover module is used to selecting to carry out all the way in multipath VGA input signal and MCVF multichannel voice frequency input defeated
Go out；
HDMI signals handover module is used to select to be exported all the way in multichannel HDMI input signals；
HDMI turns VGA signal conversion modules for HDMI signals to be converted into VGA signal output signals；
HDMI frequency dividers are used to that two-way or two-way above HDMI signals will to be divided into by HDMI signals all the way,
DAC audio converters are used to for the numerical value audio signal in HDMI signals to be converted into simulated audio signal.
A kind of specific embodiment of the present invention：
As shown in figure 1, with two-way outside VGA input interfaces, two-way HDMI input interfaces, single channel VGA output interfaces, single channel
Audio output, the system architecture of single channel HDMI outputs.The controller of said structure can meet answering for the overwhelming majority in practical application
With scene, the controller can be used for being integrated with the teaching one-piece of computer and blank all-in-one.Built-in computer can select to make
Exported as audio-video source with VGA output interfaces and analogue audio frequency or HDMI audio frequency and video, the reserved inputs of VGA all the way of front panel
Interface and the input of audio aux interfaces and HDMI input interfaces all the way.User can use built-in computer to make source when normally using
Operation, user can be used the external computer such as the notebook of oneself to pass through the front panel of this controller when having special demands
VGA and AUX interfaces or HDMI are input into as external computer video and audio, and being also turned on can be while uses after USB data line
Electronic whiteboard.Except the control line of controlling switch machine, video line can use VGA or HDMI for the connection of controller and projector
Line.Why controller also leaves VGA output interfaces, because what the current whether price of VGA line material or user were accustomed to
Factor also has a big chunk client to use VGA line and projector to connect, and also has increasing customer requirement high definition display choosing
HDMI wire is selected to be attached.
When user's selection connects output using VGA and projector, user can select to be regarded using all digital signal sounds
Frequency HDMI input interfaces (HDMI input interfaces 1, HDMI input interfaces 2) and analog signal audio frequency and video VGA input interfaces and audio
The wherein conduct all the way of input interface (VGA input interface 1- audio input interfaces 1, VGA input interface 2- audio input interfaces 2)
Audio frequency and video input source is connected by USB interface and projector, and audio drives internal or external audio amplifier by power amplifier.
It is that user can only select all HDMI defeated when user's selection is connected using digital audio-video signal HDMI and projector
Incoming interface (HDMI input interfaces 1 and HDMI input interfaces 2) is used as signal input sources.When user is by HDMI input interfaces and throwing
When shadow machine is connected, user desirably enjoys high definition display picture, and the signal input sources of VGA do not support high definition in itself, then by its
High-definition format is converted to, it is theoretically feasible, although practical application has switched to high-definition format but output resolution ratio is constant, and
The picture for not having HDMI directly to export is clear.
Although the foregoing describing specific embodiment of the invention, those familiar with the art should manage
Solution, the specific embodiment described by us is merely exemplary, and rather than for the restriction to the scope of the present invention, is familiar with this
The technical staff in field should be covered of the invention in the equivalent modification and change made according to spirit of the invention
In scope of the claimed protection.
Claims (4)
1. a kind of multimedia high definition o controller for imparting knowledge to students, including microcontroller, it is characterised in that：Also opened including simulation
Close handover module, HDMI signals handover module, HDMI and turn VGA signal conversion modules, HDMI signal dividers, the conversion of DAC audios
Device, HDMI output interface, HDMI input modules, VGA input modules, Audio Input Modules, VGA output interfaces and power amplifier mould
Block, the microcontroller connects the HDMI signals handover module, HDMI and turns VGA signal conversion modules and analog switch respectively
Handover module；The HDMI input modules are connected to the HDMI signals handover module, the HDMI signals handover module connection
To the HDMI signal dividers, the HDMI signal dividers HDMI output interface, HDMI are connected respectively and turns VGA signals
Modular converter and DAC audio converters, the analog switch handover module connect the HDMI and turn VGA signal moduluss of conversion respectively
Block, DAC audio converters, VGA input modules, Audio Input Modules, VGA output interfaces and power amplifier module.
2. a kind of multimedia high definition o controller for imparting knowledge to students as claimed in claim 1, it is characterised in that：The VGA
Input module includes an at least VGA input interfaces.
3. a kind of multimedia high definition o controller for imparting knowledge to students as claimed in claim 1, it is characterised in that：The audio
Input module includes an at least audio input interface.
4. a kind of multimedia high definition o controller for imparting knowledge to students as claimed in claim 1, it is characterised in that：The HDMI
Input module includes an at least HDMI input interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142558.7A CN106713786A (en) | 2017-03-10 | 2017-03-10 | Multimedia high definition output controller for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142558.7A CN106713786A (en) | 2017-03-10 | 2017-03-10 | Multimedia high definition output controller for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106713786A true CN106713786A (en) | 2017-05-24 |
Family
ID=58917030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710142558.7A Pending CN106713786A (en) | 2017-03-10 | 2017-03-10 | Multimedia high definition output controller for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106713786A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681160A (en) * | 2012-06-01 | 2012-09-19 | 江南大学 | Newton ring digitalization amplification display system |
| KR20130099505A (en) * | 2012-02-29 | 2013-09-06 | 김임규 | A multi monitor output resolution sensing system and its control method thereof |
| CN203747907U (en) * | 2014-03-20 | 2014-07-30 | 深圳市共联电子有限公司 | VGA signal and HDMI signal mutual conversion signal converter |
| CN204119350U (en) * | 2014-09-29 | 2015-01-21 | 嘉兴市南湖摄影仪器有限公司 | A kind of control device |
| CN104580935A (en) * | 2015-01-17 | 2015-04-29 | 深圳市索飞翔科技有限公司 | HDMI audio/video switching device |
| KR20160051429A (en) * | 2014-11-03 | 2016-05-11 | 스피나 시스템즈 주식회사 | Electronic teaching table system with wireless transceiver |
| CN105843760A (en) * | 2016-05-12 | 2016-08-10 | 北京易舟禛华信息科技有限公司 | Information equipment comprehensive terminal |
-
2017
- 2017-03-10 CN CN201710142558.7A patent/CN106713786A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130099505A (en) * | 2012-02-29 | 2013-09-06 | 김임규 | A multi monitor output resolution sensing system and its control method thereof |
| CN102681160A (en) * | 2012-06-01 | 2012-09-19 | 江南大学 | Newton ring digitalization amplification display system |
| CN203747907U (en) * | 2014-03-20 | 2014-07-30 | 深圳市共联电子有限公司 | VGA signal and HDMI signal mutual conversion signal converter |
| CN204119350U (en) * | 2014-09-29 | 2015-01-21 | 嘉兴市南湖摄影仪器有限公司 | A kind of control device |
| KR20160051429A (en) * | 2014-11-03 | 2016-05-11 | 스피나 시스템즈 주식회사 | Electronic teaching table system with wireless transceiver |
| CN104580935A (en) * | 2015-01-17 | 2015-04-29 | 深圳市索飞翔科技有限公司 | HDMI audio/video switching device |
| CN105843760A (en) * | 2016-05-12 | 2016-08-10 | 北京易舟禛华信息科技有限公司 | Information equipment comprehensive terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |