CN109240629A

CN109240629A - Desktop screen projection method, device, equipment and storage medium

Info

Publication number: CN109240629A
Application number: CN201810992918.7A
Authority: CN
Inventors: 陈明良
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2018-08-27
Filing date: 2018-08-27
Publication date: 2019-01-18
Also published as: WO2020042350A1

Abstract

The invention discloses a desktop screen projection method, a device, equipment and a computer readable storage medium, wherein the method comprises the following steps: starting desktop screen projection setting; according to the first screen capturing frequency, screen capturing is carried out on screen-shot contents displayed on the current desktop, and first screen-captured contents are generated; determining the attribute of the screen-shot content according to the first screen-shot content; adjusting the current screen capture frequency to a second screen capture frequency according to the attributes of the screen projection contents; according to the second screen capturing frequency, screen capturing is carried out on the screen projecting content, and second screen capturing content is generated; and sending the second screen capture content to a display terminal for displaying. The invention realizes dynamic adjustment of screen capture frequency, meets the requirements of screen projection contents with different attributes, and optimizes the use experience of users.

Description

A kind of desktop throws screen method, apparatus, equipment and storage medium

Technical field

The present invention relates to computer intelligence interaction fields more particularly to a kind of desktop to throw screen method, apparatus, equipment and calculating Machine readable storage medium storing program for executing.

Background technique

In interactive intelligent tablet computer field, the application one of more and more important as interactive intelligent tablet computer of screen technology is thrown, It is widely used among the working and learning of people, greatly improves the work and learning efficiency of people.For example, in meeting It discusses under scene, the content shown on the laptop that user can be operated throws screen to interactive intelligent tablet computer, makes other Participant watches the content by interactive intelligent tablet computer, by this sharing, can make the efficient participant of participant and Decision.During desktop is thrown and shielded, screen content is thrown in the throwing screen equipment interception as transmitting terminal, and the throwing screen content of interception is sealed Dress is sent to receiving device by wireless network, so that receiving device is in the data for receiving transmission for that can transmit data Afterwards, it is resolved to the throwing screen content of receiving end, and desktop simultaneous display or operation is carried out according to the throwing screen content of parsing Process.

In the implementation of the present invention, inventor has found: throwing screen scheme in original desktop, transmitting terminal will intercept It throws screen content to be encapsulated as that data can be transmitted, and is sent to the process that receiving device is parsed and shown for data can be transmitted In, transmitting terminal throws screen content based on the setting interception itself defaulted to be packaged transmission, it may appear that following problems: the first, does not have There is the Network status in view of current transmission, excessive Data Transmission Content can cause because of bad Network status transmission delay Receiving device receives delay, so as to cause picture Caton phenomenon；The second, the hardware and software device of receiving device is not accounted for The throwing screen content of function restriction, transmitting terminal transmission may cause to show because of the function restriction of receiving device software and hardware facilities The unsharp situation of picture, seriously affects the usage experience of user.

Summary of the invention

It can in view of the above-mentioned problems, throwing screen method, apparatus, equipment and computer the purpose of the present invention is to provide a kind of desktop Storage medium is read, dynamic adjusts screenshotss frequency, meets the demand of the throwing screen content of different attribute.

In a first aspect, the embodiment of the invention provides a kind of desktops to throw screen method, comprising:

Start desktop and throws screen setting；

According to the first screenshotss frequency, screenshotss are carried out to the throwing screen content that current desktop is shown, generate the first screenshotss content；

According to the first screenshotss content, the attribute for throwing screen content is determined；

According to the attribute for throwing screen content, current screenshotss frequency is adjusted to the second screenshotss frequency；

According to the second screenshotss frequency, screenshotss are carried out to throwing screen content, generate the second screenshotss content；

The second screenshotss content is sent to display terminal to be used to show.

It is described according to the first screenshotss content in the first implementation of first aspect, it determines in the throwing screen The attribute of appearance, specifically:

According to the residual error of adjacent at least two interframe of the first screenshotss content, the attribute for throwing screen content is determined.

It is described according to institute in second of implementation of first aspect according to the first implementation of first aspect The residual error for stating adjacent at least two interframe of the first screenshotss content determines the attribute for throwing screen content, specifically:

When the residual error of adjacent at least two interframe of the first screenshotss content is greater than preset threshold values, the throwing screen is determined Content is that dynamic throws screen content；

When the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, the throwing screen is determined Content is that static throw shields content.

It is described according to the attribute for throwing screen content in the third implementation of first aspect, by current screenshotss Frequency is adjusted to the second screenshotss frequency, specifically:

According to the attribute for throwing screen content, the time interval of adjacent screenshotss twice is adjusted.

Second aspect, the embodiment of the invention provides a kind of desktops to throw screen method, comprising:

Start desktop and throws screen setting；

Screen content is thrown to the dynamic and carries out screenshotss according to the second screenshotss frequency, generates the second screenshotss content；

The second screenshotss content is sent to display terminal to be used to show；

When the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, the throwing screen is determined Content is that static throw shields content；

To the static screen content of throwing according to third screenshotss frequency progress screenshotss, third screenshotss content is generated；Wherein, described Third screenshotss frequency is less than the second screenshotss frequency；

The third screenshotss content is sent to display terminal to be used to show.

In the first implementation of second aspect, further includes:

It receives for the endorsement information for throwing screen content；Wherein, the endorsement information is to be operated by input equipment It generates；

With the 4th screenshotss frequency, screenshotss are carried out to the throwing screen content through annotating, generate the 4th screenshotss content；

The 4th screenshotss content is sent to display terminal to be used to show.

In the third implementation of second aspect, the second screenshotss frequency is 20 frames/- 30 frames of second/second.

In the 4th kind of implementation of second aspect, the third screenshotss frequency is 5 frames/- 20 frames of second/second.

The third aspect, the embodiment of the invention provides a kind of desktops to throw screen device, comprising:

Screen starting module is thrown, throws screen setting for starting desktop；

First screenshotss content generating module, for according to the first screenshotss frequency, throwing screen content that current desktop is shown into Row screenshotss generate the first screenshotss content；

Screen contents attribute determining module is thrown, for determining the attribute for throwing screen content according to the first screenshotss content；

Screenshotss frequency regulation block, for according to the attribute for throwing screen content, current screenshotss frequency to be adjusted to the Two screenshotss frequencies；

Second screenshotss content generating module, for carrying out screenshotss to throwing screen content according to the second screenshotss frequency, Generate the second screenshotss content；

Second screenshotss content transmission module is used to show for the second screenshotss content to be sent to display terminal.

In the first implementation of the third aspect, the throwing screen contents attribute determining module is specifically included:

Contents attribute determines submodule, for the residual error according to adjacent at least two interframe of the first screenshotss content, really The fixed attribute for throwing screen content.

According to the first implementation of the third aspect, in second of implementation of the third aspect, the content category Property determines submodule, specifically includes:

Dynamic content determination unit, the residual error for adjacent at least two interframe when the first screenshotss content are greater than default Threshold values when, determine that throwing screen content throws screen content for dynamic；

Static content determination unit, the residual error for adjacent at least two interframe when the first screenshotss content are less than default Threshold values when, determine that throwing screen content shields content for static throw.

In the 4th kind of implementation of the third aspect, the screenshotss frequency regulation block is specifically included:

Fourth aspect, the embodiment of the invention provides a kind of desktops to throw screen device, comprising:

Screen starting module is thrown, throws screen setting for starting desktop；

Dynamic content determining module, the residual error for adjacent at least two interframe when the first screenshotss content are greater than default Threshold values when, determine that throwing screen content throws screen content for dynamic；

Second screenshotss content generating module carries out screenshotss according to the second screenshotss frequency for throwing screen content to the dynamic, Generate the second screenshotss content；

Second screenshotss content transmission module is used to show for the second screenshotss content to be sent to display terminal；

Static content determining module, the residual error for adjacent at least two interframe when the first screenshotss content are less than default Threshold values when, determine that throwing screen content shields content for static throw；

Third screenshotss content generating module, for carrying out screenshotss according to third screenshotss frequency to the static throwing screen content, Generate third screenshotss content；Wherein, the third screenshotss frequency is less than the second screenshotss frequency；

Third screenshotss content transmission module is used to show for the third screenshotss content to be sent to display terminal.

In the first implementation of fourth aspect, further includes:

Endorsement information receiving module, for receiving for the endorsement information for throwing screen content；Wherein, the endorsement information For what is generated by input equipment operation；

4th screenshotss information generating module, it is raw for carrying out screenshotss to the throwing screen content through annotating with the 4th screenshotss frequency At the 4th screenshotss content；

4th screenshotss information transmission modular is used to show for the 4th screenshotss content to be sent to display terminal.

In second of implementation of fourth aspect, the second screenshotss frequency is 20 frames/- 30 frames of second/second.

In the third implementation of fourth aspect, the third screenshotss frequency is 5 frames/- 20 frames of second/second.

5th aspect, the embodiment of the invention provides a kind of desktops to throw screen equipment, including processor, memory and storage In the memory and it is configured as the computer program executed by the processor, the processor executes the computer Realize that desktop described in any one of first aspect throws screen method when program.

6th aspect, the embodiment of the invention provides a kind of desktops to throw screen equipment, including processor, memory and storage In the memory and it is configured as the computer program executed by the processor, the processor executes the computer Realize that desktop described in any one of second aspect throws screen method when program.

7th aspect, the embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage Medium includes the computer program of storage, wherein controls the computer-readable storage medium in computer program operation Equipment where matter executes the desktop as described in any one of first aspect and throws screen method.

Eighth aspect, the embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage Medium includes the computer program of storage, wherein controls the computer-readable storage medium in computer program operation Equipment where matter executes the desktop as described in any one of second aspect and throws screen method.

Above one embodiment has the following beneficial effects:

During desktop is thrown and shielded, starting desktop throws screen setting, it is first determined the attribute for throwing screen content, then according to The attribute for throwing screen content, adjusts current screenshotss frequency, carries out screenshotss to throwing screen content with screenshotss frequency adjusted, then Content after screenshotss is sent to display terminal, the present invention carries out dynamic adjustment to screenshotss frequency according to the attribute for throwing screen content, To realize the dynamic adjustment of frame per second, the throwing shown on display terminal screen content is showed based on self attributes Display effect improves the usage experience of user, while also avoiding unreasonable because of screenshotss set of frequency, causes to cut using fixed Shield the throwing screen content of frequency interception the poor display of receiving end the case where, to improve the good applicability for throwing screen technology.

Detailed description of the invention

In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the flow diagram that first embodiment of the invention provides that screen method is thrown in face.

Fig. 2 is the flow diagram that second embodiment of the invention provides that screen method is thrown in face.

Fig. 3 is the structural schematic diagram that third embodiment of the invention provides that screen device is thrown in face.

Fig. 4 is the structural schematic diagram that fourth embodiment of the invention provides that screen device is thrown in face.

Fig. 5 is the structural schematic diagram that fifth embodiment of the invention provides that screen equipment is thrown in face.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Referring to Fig. 1, first embodiment of the invention, which provides a kind of desktop, throws screen method, can be thrown by desktop screen equipment Execute, the desktop throw screen equipment can be realized by way of software and/or hardware, the desktop throw screen equipment can be two or Multiple physical entities are constituted, and are also possible to a physical entity and are constituted.The desktop, which throws screen equipment, can be computer, mobile phone, plate Computer, mobile give lessons terminal or intelligent interaction plate etc..In embodiments of the present invention, screen is thrown as desktop using mobile terminal of giving lessons to set It is described for standby, wherein the movement gives lessons terminal as a kind of teaching integrated equipment, can be through touch technology pair It is shown in the integration apparatus that the mobile content in terminal of giving lessons was manipulated and realized man-machine interactive operation, is integrated with photography One or more functions such as machine, microphone, touch tablet, demonstration courseware, long- distance tabletop control, file upload, movable exhibition stand.

In embodiments of the present invention, movement terminal of giving lessons can establish data connection at least one external device (ED).Its In, the external device (ED) includes but is not limited to: mobile phone, laptop, USB flash drive, interactive intelligent tablet computer, tablet computer and Desktop computer etc..The external device (ED) and the movement give lessons terminal data connection communication mode embodiment in do not limit It is fixed, the communication modes such as USB connection, internet, local area network, bluetooth, Wi-Fi or purple peak agreement (ZigBee) can be passed through.

Further, the movement give lessons terminal and at least one external device (ED) carry out desktop it is synchronous during, it is described Mobile terminal of giving lessons throws the throwing screen equipment during screen as desktop, throws screen content to the external device (ED) transmission as receiving end, So that the external device (ED) carries out desktop simultaneous display according to the throwing screen content of transmission, the external equipment as receiving end is Equipment with display screen comprising but be not limited to: mobile phone, laptop, interactive intelligent tablet computer, tablet computer and desk-top Computer etc., it is however generally that, receiving device can have one or more, be arranged depending on specific application scenarios, and embodiment is not It limits.

To throw screen equipment as mobile terminal of giving lessons in embodiment, receiving device is for interactive intelligent tablet computer.Come to this Invention carries out exemplary description.

Specifically, referring to Fig. 1, the desktop that first embodiment of the invention provides throws screen method, comprising:

S11, starting desktop throw screen setting.

In embodiments of the present invention, the movement is given lessons to be equipped with desktop in terminal and/or intelligent interaction plate and throw screen and be set It sets, which, which throws screen setting and can be pre-installed in the movement, gives lessons in terminal and/or intelligent interaction plate, is also possible to The movement is given lessons when starting desktop in terminal and/or intelligent interaction plate and throwing screen setting, from third party device or server It is downloaded and installs and uses.Wherein, third party device is not construed as limiting in embodiment.The movement give lessons terminal desktop throw Screen setting throws screen content for obtaining, and will throw screen content and be directly or indirectly sent to intelligent interaction plate.If it is a sending and receiving If sending, movement terminal of giving lessons can be sent to the intelligent interaction plate by relay device, which can be with It is wireless screen transmission device, is also possible to that there are the other equipment of data relay/processing function.The desktop of intelligent interaction plate throws screen Setting throws screen content for receiving, and shows convenient for intelligent interaction plate to received throwing screen content.It needs to pass through in user The movement give lessons terminal carry out desktop throw screen operation when, assign first throwing screen enabled instruction so that the movement is given lessons terminal root Screen setting is thrown according to enabled instruction starting desktop, specific instruction type may be set according to actual conditions, such as described Mobile terminal of giving lessons detects that triggering key (can be physical button either virtual key) is clicked, is double-clicked or long-pressing Etc., then the movement is given lessons, and terminal is determining to receive throwing screen enabled instruction, and shields enabled instruction according to the throwing and start desktop Throw screen setting.

S12 carries out screenshotss to the throwing screen content that current desktop is shown, generates in the first screenshotss according to the first screenshotss frequency Hold.

In embodiments of the present invention, the movement gives lessons terminal after starting desktop throws screen setting, calls screenshotss thread Obtain current desktop, the current desktop is that the movement is given lessons the display interface of terminal, then by the screenshotss thread with First screenshotss frequency carries out screenshotss to the throwing screen content that shows on current desktop, to the throwing screen content of interception by software mode or Person's hardware mode encodes, to generate the first screenshotss content of picture format, it should be noted that the first screenshotss frequency Specific value can be that user is pre-set, be also possible to the screenshotss frequency for the default that the screenshotss thread uses, such as It is 20 frames/second etc. that the first screenshotss frequency, which is arranged,.

S13 determines the attribute for throwing screen content according to the first screenshotss content.

In embodiments of the present invention, the movement gives lessons terminal according to adjacent at least two interframe of the first screenshotss content Residual error, determine it is described throw screen content attribute, it is described throw screen content attribute be specially it is described throw screen content dynamic attribute Or static attribute, the throwing screen content includes dynamic throwing screen content such as video, dynamic picture (GIF picture etc.) etc., and static Screen content such as document, PowerPoint, static images, various graphical user interface displays contents etc. is thrown, specifically, the movement is awarded Class terminal carries out intra prediction, to obtain predicted pixel values, then obtains actual pixel value, root according to the first screenshotss content According to the difference of the actual pixel value and the predicted pixel values, residual error is obtained, then the residual error is converted and quantified, thus The attribute for throwing screen content is determined according to the value of the residual error.

In embodiments of the present invention, further, when movement terminal of giving lessons judges the first screenshotss content When the residual error of adjacent at least two interframe is greater than preset threshold values, determine that the throwing screen content throws screen content for dynamic, when the shifting When dynamic terminal of giving lessons judges that the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, described in determination It is static throwing screen content that content is shielded in throwing, it should be noted that the present invention sets not the specific value of the preset threshold value Any restrictions are done, can be specifically arranged according to actual conditions.

Current screenshotss frequency is adjusted to the second screenshotss frequency according to the attribute for throwing screen content by S14.

In embodiments of the present invention, the movement gives lessons terminal according to the attribute dynamic adjustment screenshotss frequency for throwing screen content Rate, thus change it is described throw display frame rate of the screen content in the interactive intelligent tablet computer, specifically, the movement is given lessons terminal According to the attribute for throwing screen content, the time interval of the adjacent screenshotss twice of adjustment screenshotss thread, movement terminal of giving lessons is logical The setting of the sleeping time of screenshotss twice adjacent to screenshotss thread is crossed to adjust the time interval of adjacent screenshotss twice, to will work as Preceding screenshotss frequency is adjusted to the second screenshotss frequency；Wherein, when the attribute for throwing screen content is that dynamic throws screen content, then institute The time interval that mobile terminal of giving lessons shortens the adjacent screenshotss twice of screenshotss thread is stated, that is, reduces the adjacent screenshotss twice of screenshotss thread Sleeping time, so that screenshotss frequency is improved, so that the second screenshotss frequency adjusted is higher than the first screenshotss frequency, the tune The second screenshotss frequency after whole is 20 frames/- 30 frames of second/second；When the attribute for throwing screen content be it is static throw screen content when, then institute The time interval that mobile terminal of giving lessons increases the adjacent screenshotss twice of screenshotss thread is stated, that is, increases the adjacent screenshotss twice of screenshotss thread Sleeping time, so that screenshotss frequency is reduced, so that the second screenshotss frequency adjusted is lower than the first screenshotss frequency, the tune The second screenshotss frequency after whole is 5 frames/- 20 frames of second/second.

S15 carries out screenshotss to throwing screen content, generates the second screenshotss content according to the second screenshotss frequency.

In embodiments of the present invention, the movement gives lessons terminal according to the Attribute tuning screenshotss thread for throwing screen content Screenshotss frequency after, by the screenshotss thread with the second screenshotss frequency adjusted to the throwing screen content of current desktop Screenshotss are carried out, the throwing screen content of interception is encoded by software mode or hardware mode, to generate the of picture format Two screenshotss contents.

The second screenshotss content is sent to display terminal and is used to show by S16.

In embodiments of the present invention, the movement gives lessons terminal after generating the second screenshotss content, by direct Or the second screenshotss content is sent to display terminal by round-about way, so that the display terminal receives described second It is decoded and shows after screenshotss content, said so that the display terminal is interactive intelligent tablet computer as an example in the present embodiment It is bright, it should be noted that when the display terminal is interactive intelligent tablet computer, the display terminal can be conference scenario use Large scale interactive intelligent tablet computer, be also possible to educate the large scale interactive intelligent tablet computer that uses of scene.When second screenshotss When content is that dynamic throws screen content, since the movement gives lessons terminal to be higher than the second screenshotss frequency of the first screenshotss frequency Rate carries out screenshotss to throwing screen content, has correspondingly improved the compression ratio of every frame data, in the case where code rate is fixed, code Rate=frame per second × every frame data volume size, the compression ratio of every frame data improve, i.e., frame per second improves, and accordingly decreases every frame The size of data volume, so that the interactive intelligent tablet computer is more smooth when showing that the dynamic throws screen content；When described second When screenshotss content is static throwing screen content, since the movement gives lessons terminal to be lower than the second screenshotss of the first screenshotss frequency Frequency carries out screenshotss to throwing screen content, correspondingly reduces the compression ratio of every frame data, in the case where code rate is fixed, Code rate=frame per second × every frame data volume size, the compression ratio of every frame data reduce, i.e., frame per second reduces, and correspondingly improve every The size of frame data amount optimizes user so that the interactive intelligent tablet computer is more clear when showing the static throwing screen content Usage experience.

In conclusion first embodiment of the invention provides a kind of desktop throwing screen method, and during desktop is thrown and is shielded, starting Desktop throws screen setting, it is first determined throws the attribute of screen content, then according to the attribute for throwing screen content, adjusts current screenshotss Frequency carries out screenshotss to throwing screen content with screenshotss frequency adjusted, then the content after screenshotss is sent to display terminal, The present invention carries out dynamic adjustment to screenshotss frequency according to the attribute for throwing screen content, thus realize the dynamic adjustment of frame per second, so that The throwing screen content shown on display terminal can show the display effect based on self attributes, improve the usage experience of user, It also avoids simultaneously unreasonable because of screenshotss set of frequency, causes the throwing screen content intercepted using fixed screenshotss frequency in receiving end The case where poor display, to improve the good applicability for throwing screen technology.

Referring to Fig. 2, second embodiment of the invention provides a kind of desktop throwing screen method, comprising:

S21, starting desktop throw screen setting.

S22 carries out screenshotss to the throwing screen content that current desktop is shown, generates in the first screenshotss according to the first screenshotss frequency Hold.

S23, when the residual error of adjacent at least two interframe of the first screenshotss content is greater than preset threshold values, described in determination Throwing screen content is that dynamic throws screen content.

In embodiments of the present invention, the movement give lessons terminal calculate the first screenshotss content adjacent at least two frames it Between residual error, judge that size between the adjacent at least residual error of two interframe of the first screenshotss content and preset threshold value is closed System, when the residual error of adjacent at least two interframe of the first screenshotss content is greater than preset threshold values, the movement is given lessons terminal Determine that the throwing screen content throws screen content, such as video, dynamic picture for dynamic, it should be noted that the application is for threshold value Setting do not do any restrictions, can be specifically arranged according to actual conditions.

S24 throws screen content to the dynamic and carries out screenshotss according to the second screenshotss frequency, generates the second screenshotss content.

In embodiments of the present invention, the movement gives lessons terminal according to dynamic throwing screen content, adjusts screenshotss thread phase The time interval of adjacent screenshotss twice, the movement give lessons terminal by shorten the sleeping time of the adjacent screenshotss twice of screenshotss thread come The time interval of adjacent screenshotss twice is adjusted, to improve screenshotss frequency, current screenshotss frequency is adjusted to the second screenshotss frequency Rate is cut by the screenshotss thread with the throwing screen content of the second screenshotss frequency adjusted to current desktop Screen, is encoded the throwing screen content of interception, by software mode or hardware mode to generate the second screenshotss of picture format Content, wherein the second screenshotss frequency is 20 frames/- 30 frames of second/second.

The second screenshotss content is sent to display terminal and is used to show by S25.

In embodiments of the present invention, the movement gives lessons terminal after generating the second screenshotss content, by direct Or the second screenshotss content is sent to display terminal by round-about way, so that the display terminal receives described second It is decoded and shows after screenshotss content, said so that the display terminal is interactive intelligent tablet computer as an example in the present embodiment It is bright, it should be noted that when the display terminal is interactive intelligent tablet computer, the display terminal can be conference scenario use Large scale interactive intelligent tablet computer, be also possible to educate the large scale interactive intelligent tablet computer that uses of scene, since the movement is awarded Class terminal correspondingly improves throwing screen content progress screenshotss with the second screenshotss frequency for being higher than the first screenshotss frequency The compression ratio of every frame data, in the case where code rate is fixed, code rate=frame per second × every frame data volume size, every frame data Compression ratio improves, i.e., frame per second improves, and accordingly decreases the size of every frame data amount, so that the interactive intelligent tablet computer is aobvious Show more smooth when the dynamic throws screen content, optimizes user experience.

S26, when the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, described in determination Throwing screen content is that static throw shields content.

In embodiments of the present invention, the movement give lessons terminal calculate the first screenshotss content adjacent at least two frames it Between residual error, judge that size between the adjacent at least residual error of two interframe of the first screenshotss content and preset threshold value is closed System, when the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, the movement is given lessons terminal Determine that the throwing screen content shields content for static throw, such as document, PowerPoint, picture, various graphical user interface displays contents Deng, it should be noted that the application does not do any restrictions for the setting of threshold value, can be specifically arranged according to actual conditions.

S27 generates third screenshotss content to the static screen content of throwing according to third screenshotss frequency progress screenshotss；Wherein, The third screenshotss frequency is less than the second screenshotss frequency.

In embodiments of the present invention, the movement gives lessons terminal according to the static throwing screen content, adjusts screenshotss thread phase The time interval of adjacent screenshotss twice, the movement give lessons terminal by increase the sleeping time of the adjacent screenshotss twice of screenshotss thread come The time interval of adjacent screenshotss twice is adjusted, to reduce screenshotss frequency, current screenshotss frequency is adjusted to third screenshotss frequency Rate is cut by the screenshotss thread with the throwing screen content of the third screenshotss frequency adjusted to current desktop Screen, is encoded the throwing screen content of interception, by software mode or hardware mode to generate the third screenshotss of picture format Content, wherein the third screenshotss frequency is 5 frames/- 20 frames of second/second.

The third screenshotss content is sent to display terminal and is used to show by S28.

In embodiments of the present invention, in embodiments of the present invention, the movement gives lessons terminal in the generation third screenshotss After content, the third screenshotss content is sent to by display terminal by directly or indirectly method, so that described aobvious It is decoded and shows after showing the terminal reception third screenshotss content, be in the present embodiment interaction intelligence with the display terminal It can be illustrated for plate, since the movement gives lessons terminal to be lower than the third screenshotss frequency of the first screenshotss frequency, Screenshotss are carried out to throwing screen content, correspondingly reduce the compression ratio of every frame data, in the case where code rate is fixed, code rate= Frame per second × every frame data volume size, the compression ratio of every frame data reduce, i.e., frame per second reduces, and correspondingly improves every frame data The size of amount optimizes the use of user so that the interactive intelligent tablet computer is more clear when showing the static throwing screen content Experience.

In conclusion second embodiment of the invention provides a kind of desktop throwing screen method, and during desktop is thrown and is shielded, starting Desktop throws screen setting, it is first determined the attribute for throwing screen content, when the attribute for throwing screen content is that dynamic throws screen content, and adjustment Current screenshotss frequency is the second screenshotss frequency, carries out screenshotss to throwing screen content with the second screenshotss frequency adjusted, when When the attribute for throwing screen content is static throwing screen content, adjusting current screenshotss frequency is third screenshotss frequency, after adjustment Third screenshotss frequency screenshotss are carried out to throwing screen content, the third screenshotss frequency finally will less than the second screenshotss frequency Content after screenshotss is sent to display terminal, and the present invention carries out dynamic adjustment to screenshotss frequency according to the attribute for throwing screen content, from And realize the dynamic adjustment of frame per second, the throwing screen content shown on display terminal is showed aobvious based on self attributes Show effect, improve the usage experience of user, while also avoiding unreasonable because of screenshotss set of frequency, causes using fixed screenshotss The throwing screen content of frequency interception is the poor display of receiving end the case where, to improve the good applicability for throwing screen technology.

In an alternative embodiment of the invention:

On the basis of the second embodiment, the desktop throws screen method further include:

It receives for the endorsement information for throwing screen content；Wherein, the endorsement information is to be operated by input equipment It generates.

With the 4th screenshotss frequency, screenshotss are carried out to the throwing screen content through annotating, generate the 4th screenshotss content.

The 4th screenshotss content is sent to display terminal to be used to show.

In embodiments of the present invention, when the interactive intelligent tablet computer as receiving end detects user to being shown in the interaction When throwing screen content on the display interface of Intelligent flat carries out annotation operation, the interactive intelligent tablet computer is operated according to the annotation Endorsement information is generated, and the endorsement information is thrown into screen setting by desktop and is sent to the movement in a manner of directly or indirectly It gives lessons terminal, it should be noted that the endorsement information is to pass through input equipment operation to generate, the interactive intelligent tablet computer Receive the movement give lessons terminal transmission throwing screen content and after being shown, when the interactive intelligent tablet computer detects Input equipment is clicked, is double-clicked or be long pressed, slided etc., then the interactive intelligent tablet computer determination is received for institute State the annotation operation for throwing screen content.When throwing screen content is that dynamic throws screen content, such as video, the annotation operates can be with It is the operation such as broadcasting, pause, F.F., slow play, dragging to video；When throwing screen content is that static throw shields content, example Such as document, the annotation operation can be modification, deletion, increase, dragging to document, open the operation such as document.The movement Terminal of giving lessons is believed after throwing screen setting by desktop and receiving for the endorsement information for throwing screen content according to the annotation Breath carries out corresponding operating to throwing screen content, while adjusting the time interval of the adjacent screenshotss twice of screenshotss thread, the movement Terminal of giving lessons adjusts the time of adjacent screenshotss twice by the setting of the sleeping time of the adjacent screenshotss twice of shortening screenshotss thread Interval, so that current screenshotss frequency is adjusted to the 4th screenshotss frequency, the 4th screenshotss frequency is greater than first screenshotss Frequency carries out screenshotss to the throwing screen content through annotating then with the 4th screenshotss frequency, passes through software side to the throwing screen content of interception Formula or hardware mode are encoded, to generate the 4th screenshotss content of picture format, the movement give lessons terminal pass through it is direct Or the 4th screenshotss content is sent to interactive intelligent tablet computer by round-about way, so that the interactive intelligent tablet computer receives It is decoded and shows after the 4th screenshotss content, since the movement gives lessons terminal to be higher than the first screenshotss frequency 4th screenshotss frequency carries out screenshotss to throwing screen content, has correspondingly improved the compression ratio of every frame data, fixed in code rate In the case of, code rate=frame per second × every frame data volume size, the compression ratio of every frame data improves, i.e., frame per second improves, accordingly Ground reduces the size of every frame data amount, so that the interactive intelligent tablet computer is more smooth when showing the 4th screenshotss content, It gives user a kind of feeling that operation is smooth, improves operation fluency, optimize the usage experience of user.

Referring to Fig. 3, third embodiment of the invention provides a kind of desktop throwing screen device, comprising:

Screen starting module 11 is thrown, throws screen setting for starting desktop.

First screenshotss content generating module 12 is used for according to the first screenshotss frequency, the throwing screen content shown to current desktop Screenshotss are carried out, the first screenshotss content is generated.

Screen contents attribute determining module 13 is thrown, for determining the category for throwing screen content according to the first screenshotss content Property.

Screenshotss frequency regulation block 14, for according to the attribute for throwing screen content, current screenshotss frequency to be adjusted to Second screenshotss frequency.

Second screenshotss content generating module 15, for being cut to throwing screen content according to the second screenshotss frequency Screen generates the second screenshotss content.

Second screenshotss content transmission module 16 is used to show for the second screenshotss content to be sent to display terminal.

In the first implementation of 3rd embodiment, the throwing screen contents attribute determining module 13 is specifically included:

The first implementation according to the third embodiment, it is described interior in second of implementation of 3rd embodiment Hold attribute and determine submodule, specifically includes:

Dynamic content determination unit, the residual error for adjacent at least two interframe when the first screenshotss content are greater than default Threshold values when, determine that throwing screen content throws screen content for dynamic.

In the 4th kind of implementation of 3rd embodiment, the screenshotss frequency regulation block 14 is specifically included:

Referring to Fig. 4, fourth embodiment of the invention provides a kind of desktop throwing screen device, comprising:

Screen starting module 21 is thrown, throws screen setting for starting desktop.

First screenshotss content generating module 22 is used for according to the first screenshotss frequency, the throwing screen content shown to current desktop Screenshotss are carried out, the first screenshotss content is generated.

Dynamic content determining module 23, the residual error for adjacent at least two interframe when the first screenshotss content are greater than pre- If threshold values when, determine that throwing screen content throws screen content for dynamic.

Second screenshotss content generating module 24 is cut for throwing screen content to the dynamic according to the second screenshotss frequency Screen generates the second screenshotss content.

Second screenshotss content transmission module 25 is used to show for the second screenshotss content to be sent to display terminal.

Static content determining module 26, the residual error for adjacent at least two interframe when the first screenshotss content are less than pre- If threshold values when, determine that throwing screen content shields content for static throw.

Third screenshotss content generating module 27, for being cut to the static throwing screen content according to third screenshotss frequency Screen generates third screenshotss content；Wherein, the third screenshotss frequency is less than the second screenshotss frequency.

Third screenshotss content transmission module 28 is used to show for the third screenshotss content to be sent to display terminal.

In the first implementation of fourth embodiment, further includes:

Endorsement information receiving module, for receiving for the endorsement information for throwing screen content；Wherein, the endorsement information For what is generated by input equipment operation.

4th screenshotss information generating module, it is raw for carrying out screenshotss to the throwing screen content through annotating with the 4th screenshotss frequency At the 4th screenshotss content.

In second of implementation of fourth embodiment, the second screenshotss frequency is 20 frames/- 30 frames of second/second.

In the third implementation of fourth embodiment, the third screenshotss frequency is 5 frames/- 20 frames of second/second.

It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separation unit The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual It needs that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.In addition, device provided by the invention In embodiment attached drawing, the connection relationship between module indicate between them have communication connection, specifically can be implemented as one or A plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, it can understand And implement.

Referring to Fig. 5, fifth embodiment of the invention, which provides a kind of desktop, throws screen equipment, the embodiment it is same based on desktop Step display adjustment terminal device include: processor 51, memory 52, the display screen 53 with touch function, input unit 54, Output device 55, communication device 56 and it is stored in the computer that can be run in the memory 52 and on the processor 51 Program, such as desktop throw screen program.The processor 41 realizes the desktop in first embodiment when executing the computer program The step of throwing screen embodiment.Alternatively, the processor 51 realizes that the device of 3rd embodiment is real when executing the computer program Apply the function of each module/unit in example.The quantity that the desktop throws processor 51 in screen equipment can be one or more, Fig. 5 In by taking a processor 51 as an example.The desktop, which throws the quantity of memory 52 in screen equipment, can be one or more, in Fig. 5 with For one memory 52.Processor 51, the memory 52, display screen based on the synchronous display adjustment terminal device of desktop 53, input unit 54, output device 55 and communication device 56 can be connected by bus or other modes, with logical in Fig. 5 It crosses for bus connection.In embodiment, desktop, which throws screen equipment, can be computer, mobile phone, plate, mobile terminal or the interaction intelligence of giving lessons Energy plate etc..In embodiment, by taking desktop throws screen equipment as mobile terminal of giving lessons as an example, it is described.

Illustratively, the computer program can be divided into one or more module/units, one or more A module/unit is stored in the memory 52, and is executed by the processor 51, to complete the present invention.It is one Or multiple module/units can be the series of computation machine program instruction section that can complete specific function, the instruction segment is for retouching It states the computer program and throws the implementation procedure in screen equipment in the desktop.

The desktop throws screen equipment, but is not limited only to, processor 51, memory 52.Those skilled in the art can To understand, the schematic diagram is only the example that desktop throws screen equipment, does not constitute the restriction for throwing desktop screen equipment, can wrap It includes than illustrating more or fewer components, perhaps combines certain components or different components, such as the desktop throws screen equipment It can also include input-output equipment, network access equipment, bus etc..

Alleged processor 51 can be central processing unit (Central Processing Unit, CPU), can also be Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field- Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor It is the control centre that the desktop throws screen equipment Deng, the processor 51, various interfaces and the entire desktop of connection is utilized to throw The various pieces of screen equipment.

The memory 52 can be used for storing the computer program and/or module, the processor 51 by operation or The computer program and/or module being stored in the memory 52 are executed, and calls the data being stored in memory 52, Realize that the desktop throws the various functions of screen equipment.The memory 52 can mainly include storing program area and storage data area, Wherein, storing program area can application program needed for storage program area, at least one function etc.；Storage data area can store root Created data etc. are used according to mobile phone.In addition, memory 52 may include high-speed random access memory, can also include Nonvolatile memory, such as hard disk, memory, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), safety Digital (Secure Digital, SD) card, flash card (Flash Card), at least one disk memory, flush memory device or Other volatile solid-state parts.

The display screen 53 is the display screen with touch function, can be capacitance plate, electromagnetic screen or infrared screen.One As for, display screen 53 is used to show data according to the instruction of processor 51, is also used to receive and acts on the touch of display screen 53 Operation, and corresponding signal is sent to processor 51 or other devices.Optionally, when display screen 53 is infrared screen, also Including infrared touch frame, which is arranged in the surrounding of display screen 53, can be also used for receiving infrared signal, and will The infrared signal is sent to processor 51 or other equipment.

The communication device 56, for other equipment establish communicate to connect, can be wire communication device 56 and/or Wireless communication device 56.The input unit 54 can be used for receiving the number or character information of input, and generation and desktop The user setting and function control related key signals input for throwing screen equipment, can also be the camera for obtaining image with And obtain the pick up facility of audio data.The output device 55 may include the audio frequency apparatuses such as loudspeaker.It should be noted that The concrete composition of input unit 54 and output device 55 may be set according to actual conditions.

Sixth embodiment of the invention provides a kind of computer readable storage medium, and the desktop in the 5th embodiment is thrown If the integrated module/unit of screen equipment is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-described embodiment side All or part of the process in method can also instruct relevant hardware to complete, the computer by computer program Program can be stored in a computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned each The step of a embodiment of the method.Wherein, the computer program includes computer program code, and the computer program code can Think source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium can be with It include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk, light that can carry the computer program code Disk, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the computer The content that readable medium includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as It does not include electric carrier signal and telecommunication signal according to legislation and patent practice, computer-readable medium in certain jurisdictions.

Seventh embodiment of the invention provides a kind of desktop throwing screen equipment, the display tune synchronous based on desktop of the embodiment Whole terminal device includes: processor, memory, the display screen with touch function, input unit, output device, communication device And the computer program that can be run in the memory and on the processor is stored, such as desktop throws screen program.Institute State the step of desktop realized in second embodiment when processor executes the computer program throws screen embodiment.Alternatively, described Processor realizes the function of each module/unit in the Installation practice of fourth embodiment when executing the computer program.The table The quantity that processor in screen equipment is thrown in face can be one or more.The quantity that the desktop throws memory in screen equipment can be One or more.The processor based on the synchronous display adjustment terminal device of desktop, memory, display screen, input unit, Output device and communication device can be connected by bus or other modes.In embodiment, desktop is thrown screen equipment and be can be Computer, mobile phone, plate, mobile give lessons terminal or interactive intelligent tablet computer etc..In embodiment, throwing screen equipment with desktop is that movement is given lessons For terminal, it is described.

Illustratively, the computer program can be divided into one or more module/units, one or more A module/unit is stored in the memory, and is executed by the processor, to complete the present invention.It is one or more A module/unit can be the series of computation machine program instruction section that can complete specific function, and the instruction segment is for describing institute It states computer program and throws the implementation procedure in screen equipment in the desktop.

Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field- Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor It is the control centre that the desktop throws screen equipment Deng, the processor, various interfaces and the entire desktop of connection is utilized to throw screen The various pieces of equipment.

The memory can be used for storing the computer program and/or module, and the processor is by operation or executes Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization The various functions of desktop throwing screen equipment.The memory can mainly include storing program area and storage data area, wherein storage journey It sequence area can application program needed for storage program area, at least one function etc.；Storage data area can be stored to be made according to mobile phone With the data etc. created.In addition, memory may include high-speed random access memory, it can also include non-volatile memories Device, such as hard disk, memory, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card), at least one disk memory, flush memory device or other volatibility are solid State memory device.

The display screen is the display screen with touch function, can be capacitance plate, electromagnetic screen or infrared screen.Generally For, display screen is used to show data according to the instruction of processor, is also used to receive the touch operation for acting on display screen, and will Corresponding signal is sent to processor or other devices.It optionally, further include infrared touch when display screen is infrared screen The surrounding of display screen is arranged in frame, the infrared touch frame, can be also used for receiving infrared signal, and the infrared signal is sent To processor or other equipment.

The communication device is communicated to connect for establishing with other equipment, can be wire communication device and/or wireless Communication device.The input unit can be used for receiving the number or character information of input, and generates and throw screen equipment with desktop User setting and function control related key signals input, can also be the camera for obtaining image and obtain sound The pick up facility of frequency evidence.The output device may include the audio frequency apparatuses such as loudspeaker.It should be noted that input unit and The concrete composition of output device may be set according to actual conditions.

Eighth embodiment of the invention provides a kind of computer readable storage medium, and the desktop in the 7th embodiment is thrown If the integrated module/unit of screen equipment is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-described embodiment side All or part of the process in method can also instruct relevant hardware to complete, the computer by computer program Program can be stored in a computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned each The step of a embodiment of the method.Wherein, the computer program includes computer program code, and the computer program code can Think source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium can be with It include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk, light that can carry the computer program code Disk, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the computer The content that readable medium includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as It does not include electric carrier signal and telecommunication signal according to legislation and patent practice, computer-readable medium in certain jurisdictions.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as Protection scope of the present invention.

Claims

1. a kind of desktop throws screen method characterized by comprising

Start desktop and throws screen setting；

The second screenshotss content is sent to display terminal to be used to show.

2. desktop according to claim 1 throws screen method, which is characterized in that it is described according to the first screenshotss content, really The fixed attribute for throwing screen content, specifically:

3. desktop according to claim 2 throws screen method, which is characterized in that the phase according to the first screenshotss content The residual error of adjacent at least two interframe determines the attribute for throwing screen content, specifically:

When the residual error of adjacent at least two interframe of the first screenshotss content is greater than preset threshold values, the throwing screen content is determined Screen content is thrown for dynamic；

When the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, the throwing screen content is determined Screen content is thrown for static state.

4. desktop according to claim 1 throws screen method, which is characterized in that the attribute according to the throwing screen content, Current screenshotss frequency is adjusted to the second screenshotss frequency, specifically:

5. a kind of desktop throws screen method characterized by comprising

Start desktop and throws screen setting；

When the residual error of adjacent at least two interframe of the first screenshotss content is less than preset threshold values, the throwing screen content is determined Screen content is thrown for static state；

To the static screen content of throwing according to third screenshotss frequency progress screenshotss, third screenshotss content is generated；Wherein, the third Screenshotss frequency is less than the second screenshotss frequency；

The third screenshotss content is sent to display terminal to be used to show.

6. desktop according to claim 5 throws screen method, which is characterized in that further include:

It receives for the endorsement information for throwing screen content；Wherein, the endorsement information is to operate to generate by input equipment 's；

The 4th screenshotss content is sent to display terminal to be used to show.

7. desktop according to claim 5 throws screen method, which is characterized in that the second screenshotss frequency is 20 frames/second -30 Frame/second.

8. desktop according to claim 5 throws screen method, which is characterized in that the third screenshotss frequency is 5 frames/second -20 Frame/second.

9. a kind of desktop throws screen device characterized by comprising

Screen starting module is thrown, throws screen setting for starting desktop；

First screenshotss content generating module, for being cut to the throwing screen content that current desktop is shown according to the first screenshotss frequency Screen generates the first screenshotss content；

Screenshotss frequency regulation block, for according to the attribute for throwing screen content, current screenshotss frequency to be adjusted to second section Shield frequency；

Second screenshotss content generating module, for carrying out screenshotss to throwing screen content, generating according to the second screenshotss frequency Second screenshotss content；

10. desktop according to claim 9 throws screen device, which is characterized in that the throwing screen contents attribute determining module tool Body includes:

Contents attribute determines submodule, for the residual error according to adjacent at least two interframe of the first screenshotss content, determines institute State the attribute for throwing screen content.

11. desktop according to claim 10 throws screen device, which is characterized in that the contents attribute determines submodule, tool Body includes:

Dynamic content determination unit, the residual error for adjacent at least two interframe when the first screenshotss content are greater than preset valve When value, determine that the throwing screen content throws screen content for dynamic；

Static content determination unit, the residual error for adjacent at least two interframe when the first screenshotss content are less than preset valve When value, determine that the throwing screen content shields content for static throw.

12. desktop according to claim 9 throws screen device, which is characterized in that the screenshotss frequency regulation block is specific to wrap It includes:

13. a kind of desktop throws screen device characterized by comprising

Screen starting module is thrown, throws screen setting for starting desktop；

Dynamic content determining module, the residual error for adjacent at least two interframe when the first screenshotss content are greater than preset valve When value, determine that the throwing screen content throws screen content for dynamic；

Second screenshotss content generating module carries out screenshotss according to the second screenshotss frequency for throwing screen content to the dynamic, generates Second screenshotss content；

Static content determining module, the residual error for adjacent at least two interframe when the first screenshotss content are less than preset valve When value, determine that the throwing screen content shields content for static throw；

Third screenshotss content generating module, for, according to third screenshotss frequency progress screenshotss, being generated to the static screen content of throwing Third screenshotss content；Wherein, the third screenshotss frequency is less than the second screenshotss frequency；

14. desktop according to claim 13 throws screen device, which is characterized in that further include:

Endorsement information receiving module, for receiving for the endorsement information for throwing screen content；Wherein, the endorsement information is logical Cross input equipment operation and generate；

4th screenshotss information generating module generates for carrying out screenshotss to the throwing screen content through annotating with the 4th screenshotss frequency Four screenshotss contents；

15. desktop according to claim 13 throws screen device, which is characterized in that the second screenshotss frequency is 20 frames/second- 30 frames/second.

16. desktop according to claim 13 throws screen device, which is characterized in that the third screenshotss frequency is 5 frames/second- 20 frames/second.

17. a kind of desktop throws screen equipment, including processor, memory and storage in the memory and are configured as by institute The computer program of processor execution is stated, the processor is realized when executing the computer program as appointed in Claims 1-4 Desktop described in meaning one throws screen method.

18. a kind of desktop throws screen equipment, including processor, memory and storage in the memory and are configured as by institute The computer program of processor execution is stated, the processor is realized when executing the computer program as appointed in claim 5 to 8 Desktop described in meaning one throws screen method.

19. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium includes the calculating of storage Machine program, wherein equipment where controlling the computer readable storage medium in computer program operation is executed as weighed Benefit require any one of 1 to 4 described in desktop throw screen method.

20. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium includes the calculating of storage Machine program, wherein equipment where controlling the computer readable storage medium in computer program operation is executed as weighed Benefit require any one of 5 to 8 described in desktop throw screen method.