CN104967886B - Wireless display method and system - Google Patents
Wireless display method and system Download PDFInfo
- Publication number
- CN104967886B CN104967886B CN201510284645.7A CN201510284645A CN104967886B CN 104967886 B CN104967886 B CN 104967886B CN 201510284645 A CN201510284645 A CN 201510284645A CN 104967886 B CN104967886 B CN 104967886B
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- display equipment
- display
- wireless
- projection
- image
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Classifications
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- 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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- 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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4113—PC
-
- 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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
-
- 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
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of 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
- H04N21/43637—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]
Abstract
The present invention relates to a kind of wireless display methods, share for carrying out screen between the first display equipment and the second display equipment, include the following steps：First display equipment sends out projection instruction, and opens image receiving channel；Second display equipment is established with the first display equipment after detecting the first display opening of device image receiving channel and is wirelessly connected and opens image sendaisle, and the image data real-time Transmission of current display picture is shown equipment to described first；The first display equipment can be shown according to the image data transmitted from the second display equipment；Wherein, the first display equipment setting projection switch, is projected by the projection switch triggering and is instructed.The invention further relates to a kind of wireless projection systems.The above method and system can be such that screen shares faster.
Description
Technical field
The present invention relates to screens to share technical field, more particularly to a kind of wireless display method and system.
Background technology
In business meetings, it is frequently utilized that large-scale liquid crystal display or projecting apparatus to play conference content, in usual participant only
There is the computer of speaker that can be connected to by data cable on liquid crystal display or projecting apparatus, when other people need by its computer
On data come when illustrating, it is necessary to the computer of speaker and data cable are disconnected, then again data cable and its
Other people computer is attached, and operation not only takes, and is easy to interrupt meeting process.
Invention content
Based on this, it is necessary to provide a kind of efficiently wireless display method.
In addition, also providing a kind of efficiently wireless projection system.
A kind of wireless display method is shared for carrying out screen between the first display equipment and the second display equipment, is wrapped
Include following steps：
First display equipment sends out projection instruction, and opens image receiving channel；
Second display equipment is after detecting the first display opening of device image receiving channel, with the first display equipment
It establishes and is wirelessly connected and opens image sendaisle, the image data real-time Transmission of current display picture is shown to described first
Equipment；
The first display equipment can be shown according to the image data transmitted from the second display equipment；
Wherein, the first display equipment setting projection switch, is projected by the projection switch triggering and is instructed.
Described image receiving channel is two or more in one of the embodiments, for additional at least one display
Equipment is connect with the first display equipment.
The first display equipment delays the image data in image receiving channel in one of the embodiments,
It deposits.
The first display equipment further includes the step for selecting image data to be shown in one of the embodiments,
Suddenly.
The projection switch is additionally operable to triggering out code in one of the embodiments, closes image receiving channel.
The first display equipment sends out projection instruction in one of the embodiments, and opens image receiving channel
Step includes：
The projection switch, which is closed, generates electric signal；
Broadcast message is generated according to the electric signal and is broadcasted in LAN；
Into screen prjection state；
Image receiving channel is opened, and prepares to receive the image data in image receiving channel.
In one of the embodiments, the second display equipment by receive and parse through the broadcast message know it is described
First display equipment has turned on image receiving channel.
Described the step of entering screen prjection state, includes in one of the embodiments,：Display reminding picture.
A kind of wireless projection system makes at least two displays equipment for configuring at least two display equipment
Screen is carried out to share；
The wireless projection system includes：
Communication module, for the communication between wireless projection system；
Image data processing module for local image to be converted to transmissible image data, or will receive
Image data is converted to displayable image.
The wireless projection system further includes authentication module in one of the embodiments, legal wireless for verifying
Projection access.
The above method and system are shared very quick when screen, it is only necessary in the first display one key of equipment triggering projection work(
Can, the second display equipment can quickly share screen in the first display equipment.
Description of the drawings
Fig. 1 is the wireless display method flow diagram of an embodiment；
Fig. 2 is the schematic diagram that wireless display is carried out between showing equipment；
Fig. 3 is the wireless projection system module map of an embodiment.
Specific implementation mode
It is further described below in conjunction with drawings and examples.
Fig. 1 is the wireless display method flow diagram of an embodiment.This method is used in the first display equipment and the second display
Screen is carried out between equipment to share.
First display equipment and the second display equipment are the system that can carry out data processing, can be described as smart machine, example
Such as smart television, smart mobile phone, tablet computer, desktop computer and laptop, in addition the smart machine can also be
Have the projecting apparatus or electronic whiteboard of data processing function.This kind of equipment usually should include display screen (or projection arrangement) and
Data processing equipment.For display screen for performing image display, data processing equipment can carry out various data processings.Such as it is intelligent
TV, display screen are typically main part, also have various chips and circuit inside smart television, can control shown by display screen
Image.Chip and circuit inside smart television carry out tissue and configuration according to the architecture of modern computer, by taking
Operating system is carried, general data processing may be implemented.
The first display equipment based on this kind of system structure and the second display equipment, may be used following methods and carry out screen
Share.In conjunction with Fig. 2, this approach includes the following steps.
Step S110：First display equipment sends out projection instruction, and opens image receiving channel.First display equipment 100
After sending out projection instruction, on the one hand first shows that equipment 100 opens image receiving channel according to projection instruction, on the other hand may be used
Shared with informing that 200 current first display equipment 100 of the second display equipment can be used for screen.Represent the first display equipment
100 can receive the image data of other display equipment and be shown.
As shown in Fig. 2, in the present embodiment, the first display equipment 100 can be touched by the projection switch 110 being disposed thereon
Hair projection instruction.Such as first display equipment 100 be smart television, then can be at the front of the side frame of smart television or side, bottom
The projection switch 110 can be arranged in the front or side of frame, and position shown in Fig. 2 is in the side of smart television side frame.It throws
The form of shadow switch 110 can be touch, push type etc..Concrete form is not limited, and is capable of providing and is indicated whether projection
Switching signal.
Concrete form according to projection switch 110 is different, and the first display equipment 100 configures corresponding switching signal detection electricity
Road, with switching signal caused by detection projection switch 110.For example, for contact witch, detection circuit can be according to touch sheet
Capacitance variations judge whether it is touched.
The data processing equipment of first display equipment 100 is connect with the signal deteching circuit, obtains the switching signal.First
After the data processing equipment of display equipment 100 is judged according to the switching signal, broadcast message is generated.The broadcast message is in office
It is broadcasted in the net of domain, the projection state of the first display equipment 100 can be notified other display equipment.
First display equipment 100 opens image receiving channel and specifically refers to the reception of its data processing equipment operation image and place
Program is managed, memory headroom is opened up and preserves image data etc..
In a specific embodiment, this step is completed using following specific steps.
Step S111：The projection switch, which is closed, generates electric signal.Electric signal is typically low and high level signal, is utilized
The folding of switch can be generated simply.
Step S112：Broadcast message is generated according to the electric signal and is broadcasted in LAN.Pass through LAN
Information transmission protocol the broadcast of the broadcast message can be realized.
Step S113：Into screen prjection state.First display equipment 100 is not receiving the second display equipment 200
Before image data, projection state can be had been enter into prompt user, such as display reminding picture, or setting indicator light on the screen
It prompts etc..
Step S114：Image receiving channel is opened, and prepares to receive the image data in image receiving channel.First display
Equipment 100 starts image data and receives program preparation reception image data.
Step S120：Second display equipment is and described after the image receiving channel for detecting the first display equipment is opened
First display equipment, which is established, to be wirelessly connected and opens image sendaisle, will currently show that picture real-time Transmission is shown to described first
Show equipment.
Second display equipment 200 can know the by the first broadcast message for sending in step s 110 of display equipment 100
One display equipment 100 has been switched on image receiving channel.It is appreciated that the first display equipment 100 and second shows that equipment 200 must
Broadcast message must be arranged, correctly to convey or understand the meaning of broadcast message.In other embodiments, the second display is set
Standby 200 can also know whether the first display equipment 100 has been switched on image receiving channel using other modes, such as second shows
Show that 200 active of equipment sends inquiry message to the first display equipment 100, which can be broadcast message, can also be
Point-to-point information.These modes can be based on local area network communication agreement and complete.
In addition, can also be detected by the method based on other communication protocols between the second display equipment 200.Such as
Bluetooth communication, ZigBee communication etc..
Optionally, the second display equipment 200 is also based on analog signal and is detected.Such as first display equipment 100
Electromagenetic wave radiation is generated by projecting to switch, the second display equipment 200 detects the throwing that the electromagnetic wave obtains the first display equipment 100
Shadow state.As long as other kinds of analog signal can realize detection, it can be replaced, be not limited.
Second display equipment 200, which opens image sendaisle, can be specifically, the data processing dress of the second display equipment 200
Set operation image processing and send program etc..
Second display equipment 200 and first shows that equipment 100 can be established by local area network wireless router and is wirelessly connected.
After second display equipment 200 and first shows that equipment 100 establishes wireless connection, what the second display equipment 200 currently showed it
Picture is handled, and is then sent to the first display equipment 100 in real time.First display equipment 100 can show equipment 200 by second
The image data of transmission is cached or is shown.The processing that second display equipment 200 carries out the picture that currently shows include but
It is not limited to compression of images, resolution adjustment etc..
Step S130：The first display equipment can be shown according to the image data transmitted from the second display equipment.
Second display 200 real-time delivery of equipment its screen image data, the first display equipment 100 can be according to the image datas after receiving
Show image.
It is readily appreciated that, any two in the occasion with multiple display equipment, multiple display equipment can divide
It is not considered as the first display equipment and the second display equipment, and Screen sharing is limited between two display equipment every time.Such as it is aobvious
Show that any two in device A, B, C, D can be carried out screen and share.
In the above method, when the first display equipment 100 enters projection state, the second display equipment 200 by projecting switch
After detecting, by image transmitting to the first display equipment 100, to realize that the screen by the second display equipment 200 is shared with the
One display equipment 100.The method of the shared screen is very quick, it is only necessary in the first display 100 1 key of equipment triggering projection work(
Can, the second display equipment 200 can quickly share screen in the first display equipment 100.The screen sharing method is very
Frequently share the occasion, such as meeting occasion, teaching occasions etc. of screen suitable for various needs.Such as in business meetings, often
A participant can rapidly share the screen of oneself on the large-scale liquid crystal display or projecting apparatus of meeting room.For another example sharp
When being imparted knowledge to students with tablet computer, the content on the tablet computer of student can quickly share the electronic whiteboard on teacher dais.
In one embodiment, in the occasion with multiple display equipment, the image receiving channel of the first display equipment 100
For two or more, other than being supplied to the second display equipment 200 to transmit image data, also for additional at least one display
Equipment is connect with the first display equipment 100 to transmit image data.Multiple images receiving channel can be by different display equipment
Image data distinguish.
Due to being currently only able to display a screen content, other screens can be cached in advance and go out real-time pictures, reach quick
The purpose of switching.When needing to switch over, the first display equipment 100 can select corresponding image data to be shown.
Further, projection switch 110 can also be used to trigger out code, to close image receiving channel.When triggering is closed
It closes instruction and closes the process of image receiving channel and triggering projection instructs and to open the process of image receiving channel similar, do not exist
It repeats.First display equipment 100 is closed after image receiving channel, and projection is no longer available, and projecting function sets other displays
It is standby invisible.
Fig. 3 is the wireless projection system module map of an embodiment.The wireless projection system 120 is for configuring at least two
It shows in equipment (the such as first display equipment 100, second shows equipment 200), at least two displays equipment is made to carry out screen
Share.In the particular embodiment, wireless projection system 120 can be projection process program, be stored in the data of display equipment
In the storage device of processing unit.When starting operation, projection process is carried out.
Wireless projection system 120 includes communication module 122 and image data processing module 124.Communication module 122 is used for nothing
Communication between line projection's system, for example, establish image receiving channel and image sendaisle and be wirelessly connected, receive and
Send broadcast message etc..Image data processing module 124 is used to local image being converted to transmissible image data, or will
The image data received is converted to displayable image.
Further, wireless projection system 120 can also include authentication module, to showing that the access of equipment is verified.
Prevent projection without permission.
In conjunction with the method for above-described embodiment, wireless projection system 120 can be by projecting 110 one-key start of switch and being set as
Receive the state of projection.Wireless projection system 120 can also voluntarily be started by user, and select the screen of oneself sharing energy
In the enough display equipment for receiving projection.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of wireless display method is shared for carrying out screen between the first display equipment and the second display equipment, special
Sign is, includes the following steps：
First display equipment sends out projection and instructs, and the first display equipment, which instructs to open image and receive according to the projection, leads to
Road, the projection instruction are additionally operable to inform that the first display equipment can be used for screen point to the second display equipment at present
It enjoys；
Second display equipment is established after detecting the first display opening of device image receiving channel with the first display equipment
It is wirelessly connected and is opened image sendaisle, the image data real-time Transmission of current display picture is set to first display
It is standby；
The first display equipment can be shown according to the image data transmitted from the second display equipment；
Wherein, the first display equipment setting projection switch, is projected by the projection switch triggering and is instructed；
The first display equipment sends out projection instruction, and the step of opening image receiving channel includes：
The projection switch, which is closed, generates electric signal；
Broadcast message is generated according to the electric signal and is broadcasted in LAN；
Into screen prjection state；
Image receiving channel is opened, and prepares to receive the image data in image receiving channel.
2. wireless display method according to claim 1, which is characterized in that described image receiving channel is two or more,
It is connect with the first display equipment for additional at least one display equipment.
3. wireless display method according to claim 2, which is characterized in that the first display equipment receives image logical
Image data in road is cached.
4. wireless display method according to claim 3, which is characterized in that the first display equipment further includes selection figure
The step of as data to be shown.
5. wireless display method according to claim 1, which is characterized in that the projection switch is additionally operable to triggering closing and refers to
It enables, closes image receiving channel.
6. wireless display method according to claim 1, which is characterized in that the second display equipment is by receiving and solving
It analyses the broadcast message and knows that the first display equipment has turned on image receiving channel.
7. wireless display method according to claim 1, which is characterized in that described the step of entering screen prjection state wraps
It includes：
Display reminding picture.
8. a kind of wireless projection system for realizing claim 1-7 any one of them wireless display methods, which is characterized in that use
In configuring at least two display equipment, so that at least two displays equipment is carried out screen and share；
The wireless projection system includes：
Communication module, for the communication between wireless projection system；
Image data processing module, for local image to be converted to transmissible image data, or the image that will be received
Data are converted to displayable image；
Wherein, the electric signal that the wireless projection system is generated by the projection switch in display equipment starts operation.
9. wireless projection system according to claim 8, which is characterized in that the wireless projection system further includes verification mould
Block, for verifying legal wireless display access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284645.7A CN104967886B (en) | 2015-05-28 | 2015-05-28 | Wireless display method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284645.7A CN104967886B (en) | 2015-05-28 | 2015-05-28 | Wireless display method and system |
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| Publication Number | Publication Date |
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| CN104967886A CN104967886A (en) | 2015-10-07 |
| CN104967886B true CN104967886B (en) | 2018-09-25 |
Family
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| CN201510284645.7A Active CN104967886B (en) | 2015-05-28 | 2015-05-28 | Wireless display method and system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018075029A1 (en) | 2016-10-19 | 2018-04-26 | Hewlett-Packard Development Company, L.P. | Screen casting |
| CN106789126B (en) * | 2016-12-16 | 2021-06-15 | 联想(北京)有限公司 | Conference online method and conference system |
| CN108595137B (en) * | 2018-04-25 | 2021-05-04 | 广州视源电子科技股份有限公司 | Wireless screen projection method and device and screen projector |
| CN110673782B (en) | 2019-08-29 | 2022-11-29 | 荣耀终端有限公司 | Control method applied to screen projection scene and related equipment |
| CN111158622B (en) * | 2019-12-30 | 2023-07-21 | 联想(北京)有限公司 | Display method, electronic device and display device |
| CN112423073A (en) * | 2020-09-30 | 2021-02-26 | 西安万像电子科技有限公司 | Remote control method and system for screen projection equipment |
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Address after: 518000 14th Floor, C2 Building, Nanshan Zhiyuan, 1001 Xueyuan Avenue, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN CHUANGYI JOINT TECHNOLOGY CO., LTD. Address before: 518000 Building 29E, Royal Century Garden, Junction of Binhe Avenue and Yitian Road, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CHUANGYI JOINT TECHNOLOGY CO., LTD. |