CN109963190A - Electronic whiteboard - Google Patents
Electronic whiteboard Download PDFInfo
- Publication number
- CN109963190A CN109963190A CN201711404455.XA CN201711404455A CN109963190A CN 109963190 A CN109963190 A CN 109963190A CN 201711404455 A CN201711404455 A CN 201711404455A CN 109963190 A CN109963190 A CN 109963190A
- Authority
- CN
- China
- Prior art keywords
- audio
- signal
- video
- wireless communication
- video signal
- 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
Links
Classifications
-
- 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
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
-
- 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
-
- 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
-
- 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
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
Abstract
A kind of electronic whiteboard, including front panel and system board are provided with the first audio-video processing module on the front panel, the second audio-video processing module are provided on the system board.The first wireless communication module is additionally provided on the front panel, the second wireless communication module is additionally provided on the system board, the front panel and the system board are used to transmit audio-video signal by first wireless communication module and second wireless communication module.Audio-video signal can be wirelessly transmitted between front panel and system board in above-mentioned electronic whiteboard, and then can save cost to avoid complicated wiring.
Description
Technical field
The present invention relates to teaching equipment technical field more particularly to a kind of electronic whiteboards.
Background technique
Currently, existing electronic whiteboard generally includes front panel and system board, front panel is mainly used for controlling electronic whiteboard
Display screen, mainboard of the system board as electronic whiteboard, for realizing it is various instruction, data processing.It is provided on front panel
A variety of high speed signal interfaces (such as DP, HDMI, USB etc.), front panel penetrate connector corresponding with signaling interface and connection
Line is connect with system board, this connection type needs the connecting line and connector of different impedances, higher cost and can be occupied more
Circuit board space.
Summary of the invention
In view of this, it is necessary to provide a kind of electronic whiteboard, it is low in cost.
An embodiment of the present invention provides a kind of electronic whiteboard, including front panel and system board, is arranged on the front panel
There is the first audio-video processing module, the second audio-video processing module is provided on the system board.It is also set up on the front panel
There is the first wireless communication module, the second wireless communication module, the front panel and the system are additionally provided on the system board
Plate is used to transmit audio-video signal by first wireless communication module and second wireless communication module.
Preferably, first wireless communication module includes the first audio/video encoding/decoding unit, the first modulating and demodulating signal
Unit and the first wireless transmit/receive units, the first audio/video encoding/decoding unit is for carrying out at coding the audio-video signal
Reason, the first modulating and demodulating signal unit are used to be modulated the audio-video signal after coding processing, and described first is wireless
For launching modulated audio-video signal in a wireless form, first wireless transmit/receive units are also used to Transmit-Receive Unit
The audio-video signal is received, the first modulating and demodulating signal unit is also used to demodulate the audio-video signal received
Processing, the first audio/video encoding/decoding unit is for being decoded processing to the audio-video signal after demodulation.
Preferably, second wireless communication module includes the second audio/video encoding/decoding unit, second signal modulation /demodulation
Unit and the second wireless transmit/receive units, the second audio/video encoding/decoding unit is for carrying out at coding the audio-video signal
Reason, the second signal modem module are used to be modulated the audio-video signal after coding processing, and described second is wireless
For launching modulated audio-video signal in a wireless form, second wireless transmit/receive units are also used to Transmit-Receive Unit
The audio-video signal is received, the second signal modem module is also used to demodulate the audio-video signal received
Processing, the second audio/video encoding/decoding unit is for being decoded processing to the audio-video signal after demodulation.
Preferably, first wireless transmit/receive units and second wireless transmit/receive units are emitted or are connect using millimeter wave
Receive the audio-video signal.
Preferably, the electronic whiteboard further includes remote control module, and the remote control module is used for and second wireless communication
Module is communicated, to send telecommand to the electronic whiteboard.
Preferably, the electronic whiteboard further includes the touching display screen being electrically connected with the front panel, and the front panel is also
It is provided with signal acquisition module, the signal acquisition module is described for acquiring the touch command that the touching display screen transmits
First wireless communication module is used to the touch command being sent to second wireless communication module.
Preferably, the front panel is additionally provided with DP signaling interface, HDMI signaling interface and usb signal interface, to receive
The audio-video signal of outside source input.
Compared with prior art, it can wirelessly be transmitted between the front panel and system board in above-mentioned electronic whiteboard
Audio-video signal, and then cost can be saved to avoid complicated wiring.
Detailed description of the invention
Fig. 1 is the running environment figure of the electronic whiteboard of an embodiment of the present invention.
Fig. 2 is the functional block diagram of the electronic whiteboard of an embodiment of the present invention.
Fig. 3 is first wireless communication module of an embodiment of the present invention and the functional module of the second wireless communication module
Figure.
Main element symbol description
| Front panel | 10 |
| First audio-video processing module | 12 |
| First wireless communication module | 14 |
| Signal acquisition module | 16 |
| System board | 20 |
| Second audio-video processing module | 22 |
| Second wireless communication module | 24 |
| Touching display screen | 30 |
| Electronic whiteboard | 100 |
| DP signaling interface | 101 |
| HDMI signaling interface | 102 |
| Usb signal interface | 103 |
| First audio/video encoding/decoding unit | 140 |
| First modulating and demodulating signal unit | 142 |
| First wireless transmit/receive units | 144 |
| Outside source | 200 |
| Second audio/video encoding/decoding unit | 240 |
| Second signal modem module | 242 |
| Second wireless transmit/receive units | 244 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Please refer to Fig. 1-3, a kind of electronic whiteboard 100 includes front panel 10, system board 20 and touching display screen 30.Before described
Panel 10 and the system board 20 are preferably printed circuit-board assembly (PCBA).It is aobvious that the front panel 10 is electrically connected to the touch-control
Display screen 30, the front panel 10 can be used for cooperating with the touching display screen 30, realize touch-control, display function.The system
Plate 20 unite as the master control borad of the electronic whiteboard 100, audio-video signal processing may be implemented.When electronic whiteboard 100 and computer, hand
When the equipment such as machine connect, the electronic whiteboard 100 realizes computer connected to it, mobile communication by the system board 20.Institute
It states and is provided with the first audio-video processing module 12 and the first wireless communication module 14 on front panel 10, be arranged on the system board 20
There are the second audio-video processing module 22 and the second wireless communication module 24.The front panel 10 is with the system board 20 for passing through
(audio signal and video are believed for first wireless communication module 14 and second wireless communication module 24 transmission audio-video signal
Number).
When first wireless communication module 14 emits the audio-video signal, second wireless communication module 24 can
Receive the audio-video signal that first wireless communication module 14 emits.When second wireless communication module 24 emits the sound
When vision signal, first wireless communication module 14 equally can receive the audio-video that second wireless communication module 24 emits
Signal.
The front panel 10 is additionally provided with signal acquisition module 16, and the signal acquisition module 16 is for acquiring the touch-control
The touch command that display screen 30 transmits, first wireless communication module 14 are also used to for the touch command being sent to described
Two wireless communication modules 24, and then the processing touch command is realized by the system board 20, to generate and the touch-control
Corresponding touch-control is instructed to respond.
In one embodiment, first wireless communication module 14 includes the first audio/video encoding/decoding unit 140, first
Modulating and demodulating signal unit 142 and the first wireless transmit/receive units 144.The first audio/video encoding/decoding unit 140 is used for institute
It states audio-video signal and carries out coding or decoding process, the first modulating and demodulating signal unit 142 is used to believe the audio-video
It number is modulated or demodulation process, first wireless transmit/receive units 144 are for sending or receiving the audio-video signal.Work as institute
The first wireless communication module 14 is stated for when emitting the audio-video signal, the first audio/video encoding/decoding unit 140 to be used for
Coded treatment is carried out to the audio-video signal, the first modulating and demodulating signal unit 142 is used for the audio-video after coding
Signal is modulated processing, and first wireless transmit/receive units 144 are used for modulated audio-video signal in wireless form
Launch.When first wireless communication module 14 is used to receive the audio-video signal, the first wireless receiving and dispatching list
Member 144 for receiving audio-video signal, the first modulating and demodulating signal unit 142 be used for the audio-video signal received into
Row demodulation process, the first audio/video encoding/decoding unit 140 is for being decoded processing to the audio-video signal after demodulation.
In one embodiment, second wireless communication module 24 includes the second audio/video encoding/decoding unit 240, second
Modulating and demodulating signal unit 242 and the second wireless transmit/receive units 244.The second audio/video encoding/decoding unit 240 is used for institute
It states audio-video signal and carries out coding or decoding process, the second signal modem module 242 is used to believe the audio-video
It number is modulated or demodulation process, second wireless transmit/receive units 244 are for sending or receiving the audio-video signal.Work as institute
The second wireless communication module 24 is stated for when emitting the audio-video signal, the second audio/video encoding/decoding unit 240 to be used for
Coded treatment is carried out to the audio-video signal, the second signal modem module 242 is used for the audio-video after coding
Signal is modulated processing, and second wireless transmit/receive units 244 are used for modulated audio-video signal in wireless form
Launch.When second wireless communication module 24 is used to receive the audio-video signal, the second wireless receiving and dispatching list
Member 244 for receiving audio-video signal, the second signal modem module 242 be used for the audio-video signal received into
Row demodulation process, the second audio/video encoding/decoding unit 240 is for being decoded processing to the audio-video signal after demodulation.
In one embodiment, the first audio/video encoding/decoding unit 140 and the second audio/video encoding/decoding unit
240 can convert audio signal to I2S signal form, convert TTL signal form, and then first letter for vision signal
Number modem module 142 and second signal modem module 242 can be modulated processing to the signal after conversion.
In one embodiment, first wireless transmit/receive units 144 and the preferred benefit of second wireless transmit/receive units 244
Transmitting is realized with millimeter wave or receives the audio-video signal.
In one embodiment, the front panel 10 is additionally provided with DP signaling interface 101, HDMI signaling interface 102 and USB
Signaling interface 103.The front panel 10 can pass through DP signaling interface 101, HDMI signaling interface 102 or usb signal interface 103
To receive the audio-video signal of the input of outside source 200.The outside source 200 can be PC computer, mobile phone, portable
Store equipment etc..
It in one embodiment, further include remote control module 40 described in electronic whiteboard 100.The remote control module 40 is used for and institute
It states the second wireless communication module 24 to carry out wireless communication, to send telecommand to the electronic whiteboard 100, and then realizes remote control
Control the electronic whiteboard 100.
Audio-video signal can be wirelessly transmitted between front panel and system board in above-mentioned electronic whiteboard, in turn
Cost can be saved to avoid complicated wiring.
It will be apparent to those skilled in the art that the reality of production can be combined with scheme of the invention according to the present invention and inventive concept
Border needs to make other and is altered or modified accordingly, and these change and adjustment all should belong to range disclosed in this invention.
Claims (7)
1. a kind of electronic whiteboard, including front panel and system board, the first audio-video processing module, institute are provided on the front panel
It states and is provided with the second audio-video processing module on system board, it is characterised in that: be additionally provided with the first channel radio on the front panel
Believe module, the second wireless communication module, the front panel and the system board are additionally provided on the system board for passing through institute
State the first wireless communication module and second wireless communication module transmission audio-video signal.
2. electronic whiteboard as described in claim 1, which is characterized in that first wireless communication module includes the first audio-video
Codec unit, the first modulating and demodulating signal unit and the first wireless transmit/receive units, the first audio/video encoding/decoding unit are used
In carrying out coded treatment to the audio-video signal, the first modulating and demodulating signal unit is used to believe the audio-video after coding
It number is modulated processing, first wireless transmit/receive units for launching modulated audio-video signal in a wireless form
It goes, first wireless transmit/receive units are also used to receive the audio-video signal, and the first modulating and demodulating signal unit is also used
In carrying out demodulation process to the audio-video signal received, the first audio/video encoding/decoding unit is used to regard the sound after demodulation
Frequency signal is decoded processing.
3. electronic whiteboard as claimed in claim 2, which is characterized in that second wireless communication module includes the second audio-video
Codec unit, second signal modem module and the second wireless transmit/receive units, the second audio/video encoding/decoding unit are used
In carrying out coded treatment to the audio-video signal, the second signal modem module is used to believe the audio-video after coding
It number is modulated processing, second wireless transmit/receive units for launching modulated audio-video signal in a wireless form
It goes, second wireless transmit/receive units are also used to receive the audio-video signal, and the second signal modem module is also used
In carrying out demodulation process to the audio-video signal received, the second audio/video encoding/decoding unit is used to regard the sound after demodulation
Frequency signal is decoded processing.
4. electronic whiteboard as claimed in claim 3, which is characterized in that first wireless transmit/receive units and described second are wirelessly
Transmit-Receive Unit emits using millimeter wave or receives the audio-video signal.
5. electronic whiteboard as described in claim 1, which is characterized in that further include remote control module, the remote control module be used for
Second wireless communication module is communicated, to send telecommand to the electronic whiteboard.
6. electronic whiteboard as described in claim 1, which is characterized in that further include that the touch-control being electrically connected with the front panel is shown
Screen, the front panel are additionally provided with signal acquisition module, and the signal acquisition module is transmitted for acquiring the touching display screen
Touch command, first wireless communication module is used to the touch command being sent to second wireless communication module.
7. electronic whiteboard as described in claim 1, which is characterized in that the front panel is additionally provided with DP signaling interface, HDMI
Signaling interface and usb signal interface, to receive the audio-video signal of outside source input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404455.XA CN109963190A (en) | 2017-12-22 | 2017-12-22 | Electronic whiteboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404455.XA CN109963190A (en) | 2017-12-22 | 2017-12-22 | Electronic whiteboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109963190A true CN109963190A (en) | 2019-07-02 |
Family
ID=67019392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711404455.XA Pending CN109963190A (en) | 2017-12-22 | 2017-12-22 | Electronic whiteboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109963190A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070264988A1 (en) * | 2006-03-31 | 2007-11-15 | Polycom, Inc. | System, method, and apparatus for extending wireless personal area networks using conferencing connection |
| CN101893993A (en) * | 2010-07-15 | 2010-11-24 | 杭州华银视讯科技有限公司 | Electronic whiteboard system and voice processing method thereof |
| CN202331846U (en) * | 2011-11-21 | 2012-07-11 | 北京中科昊普科技有限公司 | Audio and video playing system based on electronic whiteboard |
| CN202677355U (en) * | 2012-07-09 | 2013-01-16 | 安徽天立泰电子有限公司 | Remote control type electronic whiteboard |
| CN105611396A (en) * | 2016-02-25 | 2016-05-25 | 京东方科技集团股份有限公司 | Electronic interactive system and setting method thereof |
-
2017
- 2017-12-22 CN CN201711404455.XA patent/CN109963190A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070264988A1 (en) * | 2006-03-31 | 2007-11-15 | Polycom, Inc. | System, method, and apparatus for extending wireless personal area networks using conferencing connection |
| CN101893993A (en) * | 2010-07-15 | 2010-11-24 | 杭州华银视讯科技有限公司 | Electronic whiteboard system and voice processing method thereof |
| CN202331846U (en) * | 2011-11-21 | 2012-07-11 | 北京中科昊普科技有限公司 | Audio and video playing system based on electronic whiteboard |
| CN202677355U (en) * | 2012-07-09 | 2013-01-16 | 安徽天立泰电子有限公司 | Remote control type electronic whiteboard |
| CN105611396A (en) * | 2016-02-25 | 2016-05-25 | 京东方科技集团股份有限公司 | Electronic interactive system and setting method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190702 |