CN104735537B - Display screen signal display changeover method and its device - Google Patents
Display screen signal display changeover method and its device Download PDFInfo
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- CN104735537B CN104735537B CN201310718462.2A CN201310718462A CN104735537B CN 104735537 B CN104735537 B CN 104735537B CN 201310718462 A CN201310718462 A CN 201310718462A CN 104735537 B CN104735537 B CN 104735537B
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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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47205—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for manipulating displayed content, e.g. interacting with MPEG-4 objects, editing locally
Abstract
The invention discloses a kind of display screen signal display changeover methods, include the following steps：It is wirelessly connected sub- equipment end by Wireless Presentation Gateway and one and establishes connection；The video wicket for creating and being wirelessly connected corresponding to sub- equipment end；It establishes video wicket and the corresponding vision signal being wirelessly connected between sub- equipment end synchronizes；At set time intervals, the video data of corresponding sub- equipment main interface is intercepted from the binary stream data that sub- equipment transmits；Judging that video data interception is successful, the video data of interception is sent to corresponding video wicket and is played out, video flowing is formed on video wicket.The present invention further discloses a kind of display screen signal display switching device, and by executing the display screen signal display changeover method of the present invention, external equipment is shown in video wicket so that user calls and is switched over to the external equipment of calling.
Description
Technical field
The present invention relates to display methods and device, a kind of display screen signal display changeover method and its device are particularly related to.
Background technology
Interaction tablet be have display screen, can touch-control electronic equipment, can be connect with multimedia equipments such as computers, in turn
Information exchange can be carried out with the equipment connecting.The interaction tablet of the prior art after being connect with external a certain equipment, just immediately will
The content full screen display of the external equipment is on the screen；It is needed if accessing multiple external equipments, when switching using interaction tablet
The content that large-size screen monitors are shown is switched on corresponding signal source by the button of screen remote controler or control panel.
In addition most of interactive flat screens carry USB interface in the prior art, allow user to access the storages such as USB flash disk and set
Standby, these storage devices need user actively to open the tool of file browser etc in interaction tablet, by local directory with
Storage device shows together, by searching for and browse the content that can just can be visually seen and wherein store.
Invention content
In view of this, it is an object of the invention to propose a kind of display screen signal display changeover method and its device.
Based on above-mentioned purpose display screen signal display changeover method provided by the invention, include the following steps：
It is wirelessly connected sub- equipment end by Wireless Presentation Gateway and one and establishes connection；It creates and is wirelessly connected sub- equipment end
Corresponding video wicket；It establishes video wicket and the corresponding vision signal being wirelessly connected between sub- equipment end synchronizes；
At set time intervals, the video counts of corresponding sub- equipment main interface are intercepted from the binary stream data that sub- equipment transmits
According to；Judging that video data interception is successful, the video data of interception, which is sent to corresponding video wicket, to carry out
It plays, video flowing is formed on video wicket.
Optionally, the step of sub- equipment end establishes connection is wirelessly connected with one by Wireless Presentation Gateway to further comprise
Following steps：
Load connection Wireless Presentation Gateway；Detect the request access signal for being wirelessly connected sub- equipment end；From wireless display
Gateway obtains a specific connectivity port for corresponding to the sub- equipment end；Pass through the particular port and the sub- equipment end of wireless connection
Establish connection.
Optionally, the video data of the TV module intercepts includes RGB primaries analogue video data and/or YUV amounts
Degree and component video data.
Optionally, judge in the case of having the sub- equipment end access of new wireless connection, the wireless connection for creating and newly accessing
The corresponding new video wicket of sub- equipment end, and by new video wicket together with original video wicket on a display screen
Display side by side.
Optionally, if all video wickets exceed the indication range of display screen, by the video wicket of newest establishment
It is set to except display screen indication range.
Optionally, when receiving the move that user is sent with touch control manner, except display screen indication range
Video wicket is moved in display screen indication range.
Optionally, further include following steps after the establishment of video wicket：
Receive the video wicket selection signal that user is sent with touch control manner；By the small window of video corresponding to selection signal
Mouth is enlarged into full screen window.
Optionally, further include following steps after the video wicket corresponding to selection signal being enlarged into full screen window：
Receive switching signal；Current full screen window is reduced into video wicket.
Optionally, when being connect with external storage equipment, following steps are executed：
Receive storage device access signal；Create storage device wicket；Traverse the file in storage device；To storage
The content of equipment main interface is parsed：Folder icon is generated corresponding to the file of storage device main interface；Corresponding to depositing
The video file for storing up equipment main interface generates video file picture, using video file first frame thumbnail as image content；It is right
Thumbnail should be generated, and include storing using thumbnail as picture icon in the static images file of storage device main interface
In equipment wicket；Corresponding to the text file of storage device main interface, text icon is generated, text is extracted according to setting number
Character content is included in text icon by the original character in icon；Corresponding to the dynamic picture text of storage device main interface
Part generates dynamic picture icon, dynamic picture first frame is extracted, using first frame thumbnail as moving picture content；Correspond to
Audio file generates audio icon, the information such as the title of audio file, length is shown in audio icon.
Further, the present invention provides a kind of display screen signal display switching device, including is wirelessly connected main equipment end, TV moulds
Block and window management module；The wireless connection main equipment end is wirelessly connected sub- equipment end with one by Wireless Presentation Gateway and builds
Vertical connection；The window management module creates and the video wicket corresponding to the sub- equipment end of wireless connection；The foundation of TV modules regards
Frequency wicket and the corresponding vision signal being wirelessly connected between sub- equipment end synchronize, at set time intervals, from wireless
The video data of corresponding sub- equipment main interface is intercepted in the binary stream data of sub- equipment transmission；The TV modules are judging video
In the case of data cutout is successful, the video data of interception is also sent to corresponding video wicket and is played out, in video
Video flowing is formed on wicket.
Optionally, the wireless connection main equipment end is established and is connected by Wireless Presentation Gateway and a wireless sub- equipment end
Process include：
Load connection Wireless Presentation Gateway；Detect the request access signal for being wirelessly connected sub- equipment end；From wireless display
Gateway obtains a specific connectivity port for corresponding to the sub- equipment end；Pass through the particular port and the sub- equipment end of wireless connection
Establish connection.
Optionally, the video data of the TV module intercepts includes RGB primaries analogue video data and/or YUV amounts
Degree and component video data.
Optionally, in the case that window management module judgement has the sub- equipment end access of new wireless connection, create with
The corresponding new video wicket of the sub- equipment end of wireless connection newly accessed, and by new video wicket together with original video
Wicket is shown side by side on a display screen.
Optionally, if all video wickets exceed the indication range of display screen, window management module is by newest establishment
Video wicket be set to except display screen indication range.
Optionally, when receiving the move that user is sent with touch control manner, except display screen indication range
Video wicket is moved in display screen indication range.
Optionally, further include selecting module, after the establishment of video wicket, receive user and regarded with what touch control manner was sent
Frequency wicket selection signal；Video wicket corresponding to selection signal is enlarged into full screen window by window management module.
Optionally, after the video wicket corresponding to selection signal being enlarged into full screen window, the selecting module receives
Switching signal；Then current full screen window is reduced into video wicket by the window management module.
Optionally, further include parsing module, interface administration module, when being connect with external storage equipment, the interface management
Module receives storage device access signal；The window management module creates storage device wicket；The parsing module time
The file in storage device is gone through, and the content of storage device main interface is parsed：Corresponding to the text of storage device main interface
Part is half-cooked at folder icon；Video file picture is generated corresponding to the video file of storage device main interface, by video file
First frame thumbnail is as image content；Corresponding to the static images file of storage device main interface, thumbnail is generated, and will contracting
Sketch map is shown in as picture icon in storage device wicket；Corresponding to the text file of storage device main interface, text is generated
Character content is included in text icon according to the original character in setting number extraction text icon by this icon；Correspond to
The motion picture files of storage device main interface generate dynamic picture icon, dynamic picture first frame are extracted, by first frame breviary
Figure is used as moving picture content；Corresponding to audio file, audio icon is generated, the information such as the title of audio file, length are existed
It is shown in audio icon.
From the above it can be seen that display screen signal display changeover method provided by the invention, is suitable for having display
The electronic equipment of screen, especially interactive tablet, corresponds to the sons such as PC and the mobile terminal with wireless receiving and sending function
The sub- equipment end of wireless connection of equipment generates video wicket, from the binary stream data for being wirelessly connected sub- equipment end transmission
Vision signal is intercepted, vision signal is shown in video wicket so that multiple external equipments can be intuitively in display screen
On video wicket in show；Especially when there are multiple wireless connections sub- equipment end, method provided by the invention
Allow to establish multiple video wickets, all intuitive displays on a display screen by the main interface of multiple sub- equipment.Meanwhile the present invention
The display screen signal display changeover method of embodiment, after receiving the selection instruction of user, the video that user is chosen is small
Window expansion is displayed in full screen；After receiving the switching command of user, the window being currently displayed in full screen is reduced into video
Wicket, so that user needs sub- equipment to be shown to select it in multiple video wickets again.In addition, of the invention
The display screen signal display changeover method of embodiment, corresponding external storage device, creates storage device wicket, storage is set
Content in standby main interface is shown in storage device wicket so that user can intuitively check in external storage equipment
Content, and the storage device called of needs is selected.
The present invention further provides display screen signal display switching device, provided using various embodiments of the present invention aobvious
Display screen signal display changeover method carries out signal switching, and user can be made intuitively to check and connect with a main equipment by wireless network
Multiple sub- equipment interface；User can also allow for show the video wicket of sub- equipment interface content, antithetical phrase by selection
Equipment is called.The display screen signal display switching device of the embodiment of the present invention, can also intuitively show external storage equipment
Main interface, and include intuitively also allowing user by checking, selecting in corresponding storage device wicket by the content of main interface
Video wicket and storage device wicket are selected, the external equipment or external storage equipment be displayed in full screen to needs is called.
Description of the drawings
Fig. 1 is the display screen signal display changeover method flow diagram of the embodiment of the present invention；
Fig. 2 is that the video wicket of the embodiment of the present invention arranges schematic diagram.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Display screen signal display switching device provided by the present invention has and is wirelessly connected main equipment end, is set to one
On main equipment, this main equipment can be the electronic equipment that interactive tablet etc. has display screen, be mainly used for wireless by one
It projects gateway to be wirelessly connected with the sub- equipment ends foundation of one or more wireless connections, and obtains multiple biography screen pictures from sub- equipment
Face will pass screen picture and concurrently be shown on display screen.Above-mentioned sub- equipment can have the PC for being wirelessly connected module, movement eventually
End, tablet computer etc..The wireless network connection end of above-mentioned wireless sub- equipment connecting pin, that is, sub- equipment.
Fig. 1 is the display screen signal display changeover method flow diagram of the embodiment of the present invention, is included the following steps：
Step 1：Load connection Wireless Presentation Gateway.In this step, display screen signal display switching device load connection
Wireless Presentation Gateway is established by Wireless Presentation Gateway and network service end and is connected.In most embodiments, it is opened in main equipment
It moves during the entire process of main equipment and any wireless network services end disconnect, step 1 is only performed once.
Step 2：Detect the request access signal for being wirelessly connected sub- equipment end.When the sub- equipment access such as PC, mobile terminal
Any wireless network services end connect subsequently to be begun setting up with wireless connection main equipment end, is wirelessly connected sub- equipment end and passes through nothing
Line projection's gateway, which is found, is wirelessly connected main equipment end, and request access signal is sent to main equipment end is wirelessly connected.It is complete in step 1
At later, when accessing the new sub- equipment end of wireless connection, for the sub- equipment newly accessed, executed since step 2 follow-up
Step.When to there is multiple sub- equipment ends of wireless connection to access any wireless network services end, display screen signal display switching device is more
It is secondary to detect the access for being wirelessly connected sub- equipment end, it subsequently establishes and connects with each sub- equipment end respectively.
Step 3：A specific connectivity port for corresponding to the sub- equipment end is obtained from Wireless Presentation Gateway.
Step 4：By above-mentioned particular port connection is established with sub- equipment end is wirelessly connected.
Step 5：Create video wicket.In this step, the window management module of display screen signal display switching device is created
A video wicket corresponding with the sub- equipment end of the wireless connection is built, which is non-full screen window, is wirelessly connected with corresponding
Connect sub- equipment end connection.
In some cases, if repeated detection is then received according to signal to wireless sub- equipment end request access signal
Time sequencing creates multiple video wickets, and arranges video wicket show on a display screen successively, as shown in Fig. 2, more
A video wicket 21 arranges display on display screen 22, in other embodiments, can also use other arrangement modes.Fig. 2
In illustrate three video wickets 21, if in some cases, video wicket cannot be all aobvious on a display screen simultaneously
It shows to come, then extra video wicket can be arranged in outside the indication range of display screen, pass through touch-control side by receiving user
The move that formula is sent, the video wicket within the scope of display screen is moved to other than indication range so that showing originally
Video wicket outside range is moved in indication range.
Step 6：TV modules start.
In the present embodiment, by display screen signal display switching device and the wireless connection for being wirelessly connected sub- equipment end,
Realize the wireless connection between main equipment and sub- equipment, and then in step 6, TV modules establish video wicket and wireless son is set
Standby vision signal synchronizes；Here vision signal synchronizes, and can refer to field synchronization.
In some embodiments, after TV modules start, management module first can send field synchronization detection instruction, TV to TV modules
Field synchronization situation is sent to management module by module, and management module judges whether field synchronization is in normal condition, if so, into
Following step 7；If it is not, then re-establishing field synchronization.
Step 7：TV modules by wireless master end and the connection being wirelessly connected between sub- equipment end, according to setting when
Between be spaced, intercept the video data of corresponding sub- equipment main interface.In this step, TV modules by above-mentioned wireless master end with
It is wirelessly connected the connection that sub- equipment end is established, the binary system that the sub- equipment end of wireless connection corresponding to video wicket is transmitted
Video data is intercepted in flow data；Video data herein includes RGB（Red-Green-Blue, primaries pattern）Video counts
According to, YUV（YcrCb, Luma and Chroma, brightness and aberration）The video data of video data or other formats.The setting
Time interval can be 10ms.
Step 8：Judge whether video data intercepts success, successfully believes if so, window management module is sent to TV modules
Breath, into next step；If it is not, then window management module sends failure information, return to step 7 to TV modules.In this step, window
Mouth management module judges the video data of TV module intercepts, if the data fit video wicket intercepted can be presented
Format, then management module judge data cutout success.Specifically, can persistently judge different time sections successively sequentially in time
Whether the different video datas intercepted are format can be presented in video wicket data；Also it can determine whether that is intercepted for the first time regards
Whether frequency is according to succeeding, if success, no longer judges the sub- equipment video data corresponding to the video wicket.If sentencing
Disconnected video data interception is unsuccessful, then after window management module sends failure information to TV modules, TV modules will can unsuccessfully be believed
Breath is recorded.
Step 9：The video data of interception is sent to by the time sequencing of interception in corresponding video wicket by TV modules.
Step 10：TV modules are broadcast the video data of interception by the time sequencing of interception in corresponding video wicket
It puts.
After the field synchronization between video wicket and sub- equipment is established, TV modules continue at set time intervals
Video data is intercepted from sub- equipment main interface, and the video data of interception is sent in video wicket and is played out, to
Endlessly video flowing is formd in video wicket, it is small to which sub- equipment main interface is presented on corresponding video in real time
In window.
In some embodiments, after user clicks video wicket in a manner of touch-control, management module can put window
Greatly, it is displayed in full screen.
Step 11：Receive the selection signal of user.After user clicks a video wicket with touch-control or other means,
Selection signal is had sent to display screen signal display switching device, management module is responsible for receiving the selection signal.
Step 12：Video wicket corresponding to selection signal is enlarged into full screen window.
Step 13：Receive the switching signal of user.In this step, the switching that user is sent by way of touch-control is received
Signal.
Step 14：Current full screen window is reduced into video wicket, shows corresponding video wicket before amplification
At position.When full screen window is reduced into video wicket, amplifies all video wickets shown on forth screen and also show
On the screen, to which user can check and select again to all video wickets.
Through the above steps, when equipment accesses multiple sub- equipment, user can pass through multiple video wickets arranged side by side
It intuitively checks every sub- equipment, and directly calls a certain sub- equipment by clicking video wicket, keep it full frame on a display screen
Display.
In the present embodiment, the management module of display screen signal display switching device can also pass through touch control manner according to user
Or other means the switching command that sends, current full screen window is reduced into video wicket, to again by multiple videos
Wicket is presented to the user, so that user selects different sub- equipment, so that different sub- equipment main interfaces are on a display screen
Switching display.
In some embodiments, the main equipments such as interaction tablet are additionally provided with USB（Universal Serial Bus, general string
Row bus）Interface, so as to storage devices such as external USB flash disk, mobile hard disks, after the unlatching of display screen signal display switching device,
At any time, if there is storage device to be connect with interaction tablet, then it can generate a storage device in connection and access signal,
It is sent to the management module of display screen signal display switching device, management module further executes following steps：
Step 15：Interface administration module receives storage device access signal.
Step 16：Window management module creates storage device wicket.Management module receives a storage device access
Signal just correspondingly creates a storage device wicket；If accessing multiple storage devices, then management module receives multiple
Storage device accesses signal, correspondingly creates multiple storage device wickets.Storage device wicket can be small with above-mentioned video
Window size, appearance are identical to be can also be different.
Step 17：Management module traverses the file in storage device.
Step 18：The content for showing storage device main interface is shown in the form of icon in storage device wicket
Show.
In step 18, management module parses the content of storage device main interface, corresponds to the main boundary of storage device
The file in face generates folder icon；Video file picture is generated corresponding to the video file of storage device main interface, will be regarded
Frequency file first frame thumbnail is as image content；Corresponding to the static images file of storage device main interface, thumbnail is generated,
And using thumbnail as picture icon include in storage device wicket；Corresponding to the text file of storage device main interface,
Text icon is generated, includes in text icon by character content according to the original character in setting number extraction text icon；
Corresponding to the motion picture files of storage device main interface, dynamic picture icon is generated, dynamic picture first frame is extracted, by first
Frame thumbnail is as moving picture content；Corresponding to audio file, audio icon is generated, by the title of audio file, length etc.
Information is shown in audio icon.
By executing the flow in above-described embodiment, connected with the main equipments such as tablet are interacted by wireless network and USB interface
The word equipment connect can intuitively be shown on the screen.User can be directly viewable each sub- equipment by video wicket,
And it can easily be switched between multiple sub- equipment.
Further, display screen signal display switching device provided by the invention, main includes being wirelessly connected main equipment end, window
Mouth management module and TV modules；Be wirelessly connected main equipment end connect with window management module and TV modules, window management module and
TV modules connect.After startup, it is wirelessly connected Wireless Presentation Gateway and wireless connection sub- equipment of the main equipment end by a peripheral hardware
End connection.Window management module is in the case where being wirelessly connected sub- equipment end with the connection of main equipment end is wirelessly connected, establishment and nothing
The corresponding video wicket of line connexon equipment end.TV modules establish the field being wirelessly connected between sub- equipment end and video wicket
It is synchronous, and by the Wireless Presentation Gateway of peripheral hardware, intercept the video counts of corresponding sub- equipment main interface at set time intervals
According to, according to video data intercept sequence, judge whether intercept successfully successively, if so, to TV modules send intercept successfully
Information.The video data of interception is sent to according to the time sequencing of interception in corresponding video wicket and broadcasts by TV modules
It puts.
The display screen signal display switching device of the embodiment of the present invention further includes selecting module, is connected with window management module
It connects；After the establishment of video wicket, the video wicket selection signal that user is sent with touch control manner is received；Window management mould
Video wicket corresponding to selection signal is enlarged into full screen window by block.By the video wicket amplification corresponding to selection signal
After full screen window, the selecting module receives switching signal；Then the window management module contracts current full screen window
Small is video wicket.
The display screen signal display switching device of the embodiment of the present invention further includes the parsing module and mouthpiece being connected with each other
Module is managed, the two is connect with window management module respectively；When being connect with external storage equipment, the interface administration module receives
Storage device accesses signal；The window management module creates storage device wicket；The parsing module traverses storage device
In file, and the content of storage device main interface is parsed：Text is generated corresponding to the file of storage device main interface
Part clip icon；Video file picture is generated corresponding to the video file of storage device main interface, by video file first frame breviary
Figure is used as image content；Corresponding to the static images file of storage device main interface, thumbnail is generated, and using thumbnail as figure
Piece icon is shown in storage device wicket；Corresponding to the text file of storage device main interface, text icon is generated, according to
The original character in number extraction text icon is set, includes in text icon by character content；Corresponding to storage device master
The motion picture files at interface generate dynamic picture icon, extract dynamic picture first frame, using first frame thumbnail as dynamic
Image content；Corresponding to audio file, audio icon is generated, by information such as the title of audio file, length in audio icon
Display.
From the above it can be seen that display screen signal display changeover method provided by the invention, is suitable for having display
The electronic equipment of screen, especially interactive tablet, corresponds to the sons such as PC and the mobile terminal with wireless receiving and sending function
The sub- equipment end of wireless connection of equipment generates video wicket, from the binary stream data for being wirelessly connected sub- equipment end transmission
Vision signal is intercepted, vision signal is shown in video wicket so that multiple sub- equipment can intuitively on a display screen
Video wicket in show；Especially when there are multiple wireless connections sub- equipment end, method provided by the invention permits
Permitted to establish multiple video wickets, all intuitive displays on a display screen by the main interface of multiple sub- equipment.Meanwhile the present invention is real
The display screen signal display changeover method for applying example, after receiving the selection instruction of user, the small window of video that user is chosen
Mouth, which expands, to be displayed in full screen；After receiving the switching command of user, it is small that the window being currently displayed in full screen is reduced into video
Window, so that user needs sub- equipment to be shown to select it in multiple video wickets again.In addition, the present invention is real
The display screen signal display changeover method of example is applied, corresponding external storage device creates storage device wicket, by storage device
Content in main interface is shown in storage device wicket so that user can intuitively check in external storage equipment
Content, and the storage device called to needs selects.
The present invention further provides display screen signal display switching device, provided using various embodiments of the present invention aobvious
Display screen signal display changeover method carries out signal switching, and user can be made intuitively to check and connect with a main equipment by wireless network
Multiple sub- equipment interface；User can also allow for show the video wicket of sub- equipment interface content, antithetical phrase by selection
Equipment is called.The display screen signal display switching device of the embodiment of the present invention, can also intuitively show external storage equipment
Main interface, and include intuitively also allowing user by checking, selecting in corresponding storage device wicket by the content of main interface
Video wicket and storage device wicket are selected, the sub- equipment or external storage equipment be displayed in full screen to needs is called.
Those of ordinary skills in the art should understand that：The above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done,
It should be included within protection scope of the present invention.
Claims (8)
1. a kind of display screen signal display changeover method, which is characterized in that include the following steps：
It is wirelessly connected sub- equipment end by Wireless Presentation Gateway and one and establishes connection；
The video wicket for creating and being wirelessly connected corresponding to sub- equipment end；
It establishes video wicket and the corresponding vision signal being wirelessly connected between sub- equipment end synchronizes；
At set time intervals, the video of corresponding sub- equipment main interface is intercepted from the binary stream data that sub- equipment transmits
Data；
Judging that video data interception is successful, the video data of interception, which is sent to corresponding video wicket, to carry out
It plays, video flowing is formed on video wicket；
Further include：
In the case that judgement has the sub- equipment end access of new wireless connection, create corresponding with the sub- equipment end of the wireless connection newly accessed
New video wicket, and new video wicket is shown side by side on a display screen together with original video wicket；If
All video wickets exceed the indication range of display screen, then the video wicket of newest establishment is set to display screen shows model
Except enclosing；When receiving the move that user is sent with touch control manner, by the small window of video except display screen indication range
Mouth is moved in display screen indication range；
When being connect with external storage equipment, following steps are executed：
Receive storage device access signal；
Create storage device wicket；
Traverse the file in storage device；
The content of storage device main interface is parsed：File figure is generated corresponding to the file of storage device main interface
Mark；Corresponding to storage device main interface video file generate video file picture, using video file first frame thumbnail as
Image content；Corresponding to the static images file of storage device main interface, thumbnail is generated, and using thumbnail as picture icon
It is shown in storage device wicket；Corresponding to the text file of storage device main interface, text icon is generated, according to setting number
Mesh extracts the original character in text icon, includes in text icon by character content；Corresponding to storage device main interface
Motion picture files generate dynamic picture icon, dynamic picture first frame are extracted, using first frame thumbnail as in dynamic picture
Hold；Corresponding to audio file, audio icon is generated, the information such as the title of audio file, length are shown in audio icon.
2. display screen signal display changeover method according to claim 1, which is characterized in that by Wireless Presentation Gateway with
One is wirelessly connected the step of sub- equipment end establishes connection and further comprises following steps：
Load connection Wireless Presentation Gateway；
Detect the request access signal for being wirelessly connected sub- equipment end；
A specific connectivity port for corresponding to the sub- equipment end is obtained from Wireless Presentation Gateway；
By the particular port connection is established with sub- equipment end is wirelessly connected.
3. display screen signal display changeover method according to claim 1, which is characterized in that the video data of interception includes
RGB primaries analogue video data and/or YUV measurements and component video data.
4. display screen signal display changeover method according to claim 1, which is characterized in that create it in video wicket
Afterwards, further include following steps：Receive the video wicket selection signal that user is sent with touch control manner；Corresponding to selection signal
Video wicket be enlarged into full screen window；If receiving switching signal, current full screen window is reduced into video wicket.
5. a kind of display screen signal display switching device, which is characterized in that including being wirelessly connected main equipment end, TV modules and window
Management module, three are connected with each other；
The wireless connection main equipment end is wirelessly connected sub- equipment end by Wireless Presentation Gateway and one and establishes connection；
The window management module creates and the video wicket corresponding to the sub- equipment end of wireless connection；It is small that TV modules establish video
Window and the corresponding vision signal being wirelessly connected between sub- equipment end synchronize, and at set time intervals, are set from wireless son
The video data of corresponding sub- equipment main interface is intercepted in the binary stream data of standby transmission；The window management module judgement has new
Wireless connection sub- equipment end access in the case of, create with newly access to be wirelessly connected the corresponding new video of sub- equipment end small
Window, and new video wicket is shown side by side on a display screen together with original video wicket；If all small windows of video
Mouth exceeds the indication range of display screen, then the video wicket of newest establishment is set to display screen and shows model by window management module
Except enclosing；When receiving the move that user is sent with touch control manner, by the small window of video except display screen indication range
Mouth is moved in display screen indication range；
The TV modules are judging that video data interception is successful, and the video data of interception is also sent to corresponding regard
Frequency wicket plays out, and video flowing is formed on video wicket；
Further include the parsing module being connected with each other, interface administration module, the two is also respectively connected with window management module；Display screen is believed
When number display switching device is connect with external storage equipment, the interface administration module receives storage device access signal；Institute
It states window management module and creates storage device wicket；File in the parsing module traversal storage device, and storage is set
The content of standby main interface is parsed：Folder icon is generated corresponding to the file of storage device main interface；Corresponding to storage
The video file of equipment main interface generates video file picture, using video file first frame thumbnail as image content；It is corresponding
In the static images file of storage device main interface, thumbnail is generated, and include being set in storage using thumbnail as picture icon
In standby wicket；Corresponding to the text file of storage device main interface, text icon is generated, text diagram is extracted according to setting number
Character content is included in text icon by the original character in mark；Corresponding to the motion picture files of storage device main interface,
Dynamic picture icon is generated, dynamic picture first frame is extracted, using first frame thumbnail as moving picture content；Corresponding to audio
File generates audio icon, the information such as the title of audio file, length is shown in audio icon.
6. display screen signal display switching device according to claim 5, which is characterized in that the wireless connection main equipment
End includes by the process that Wireless Presentation Gateway establishes connection with a wireless sub- equipment end：
Load connection Wireless Presentation Gateway；Detect the request access signal for being wirelessly connected sub- equipment end；From Wireless Presentation Gateway
Obtain a specific connectivity port for corresponding to the sub- equipment end；It is established by the particular port with sub- equipment end is wirelessly connected
Connection.
7. display screen signal display switching device according to claim 5, which is characterized in that the TV module intercepts regard
Frequency is according to including RGB primaries analogue video data and/or YUV measurements and component video data.
8. display screen signal display switching device according to claim 5, which is characterized in that further include selecting module, with
Window management module connects；After the establishment of video wicket, receives user and selected with the video wicket that touch control manner is sent
Signal；Video wicket corresponding to selection signal is enlarged into full screen window by window management module；Corresponding to selection signal
Video wicket be enlarged into full screen window after, the selecting module receives switching signal；Then the window management module will
Current full screen window is reduced into video wicket.
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