CN104571826A - Method, device and system for managing multiple windows on screens of multiple users - Google Patents

Abstract

Real-time management of multiple display windows on screens of multiple users is considered, each user is allowed to retain a request in an area of the corresponding screen, and each user has a priority value which indicates rights level of using the corresponding screen. The method includes: dividing one screen into mesh area units; on receiving a request from a requesting user, determining a target window formed by one or multiple mesh area units and covering the retained area, determining whether or not to allow the requesting user to use the target window; if yes, using the target window as a new window distributed to the requesting user; if the target window overlaps any distributed display window, adjusting (adjusting the size or removing) the distributed windows to avoid overlapping the target window; tiling all the distributed display windows one by one according to priority values of the users in order to maximize usage of the screens.

Description

Manage the methods, devices and systems of the multiple windows on the screen of multiple user

Technical field

The present invention relates generally to by the multiple display windows on multiple user management screen.Particularly, the present invention relates to the management of following display window: even if screen has one or more display window distributed also can process the request retaining region on screen in real time.

Background technology

For medium or large-sized screen (such as projection screen or large televisor), can multiple display windows on function screen.In one scenario, allow the multiple smart machine requests operated by different user to set up different windows, multiple application can be run on the separator window of same screen to make different user.This multi-user access to same screen has potential application, such as, in multi-user's game.

Wish the technology when there is multiple user or subscriber equipment with access control or management screen, wherein, each in multiple user or subscriber equipment individual requests can retain region on screen.About the most prior art (such as those technology disclosed in WO2013169070A1, US20130128118A1, US20130246664A1 and US20120162536A) of multi-window managing for single user situation.In US20050183035A1 and US7327376B2, in the development technique of multi-window managing, consider the existence of multi-user.But screen is partitioned statically into fixing pattern.The each part used by a user has fixing size and is positioned at the fixed position on screen.If each user has request and has arbitrary dimension and/or have by the degree of freedom of the window of user's chosen position, then the technology of US20050183035A1 and US7327376B2 is inapplicable.

Need a kind of have when there is multi-user this degree of freedom the technology of multi-window managing.

Summary of the invention

An aspect of of the present present invention be to provide by can with the method for the multiple display windows on the screen management device real-time management screen of multiple telex network.Even if screen has one or more display window distributing to one or more other user, individual consumer is also allowed screen management device to be made to the request retaining region on screen.Each user has the preferred value representing the entitlement level using this screen.

According to the method, screen divider is become multiple net regions unit, each display window is formed by one or more net region unit thus.After the request receiving the request user in multiple user, determine the target window formed by one or more net region unit, the region of specifying when at least covering the request of request user to make this target window.Then determine whether to allow this request user to use this target window.If allow this request user to use this target window, then need the overlapping target window of display window avoiding having distributed.If the not overlapping any display window distributed of this target window, then this target window is distributed to request user as new window, thus form the renewal collection of the display window distributed.If one or more first window in this target window the is overlapping display window distributed, then adjust one or more first window (such as, change size, remove or again settle) in order to avoid this target window overlapping, subsequently this target window is distributed to request user as new window, thus form the renewal collection of the display window distributed.Subsequently, tiling upgrades the display window concentrating the distribution comprised seriatim, size is changed to the new size being not less than original size to make each display window with original size, if or determine to adjust size, make each display window with original size keep original size, wherein before the window of the second user is distributed in tiling, perform tiling and distribute to the window of preferred value higher than any first user of the preferred value of any second user, wherein first user and the second user are in multiple user.

Screen management device realizes according to one or more processor of the process of the method by comprising being configured to perform.Preferably, this screen management device wirelessly receives the request from request user.Electronic display system is also by comprising screen and any screen management device disclosed herein realizes.

Disclose the other side of the present invention exemplified by embodiment hereinafter.

Accompanying drawing explanation

Fig. 1 describes according to an embodiment of the inventionly has the service screen of request made of multiple user and the electronic display system of screen management device.

Fig. 2 A and 2B is example according to the process flow diagram of the method flow performed by screen management device of one exemplary embodiment of the present invention, and wherein, Fig. 2 A is start-up course; Fig. 2 B is the process of the request in region on the response request user reservation screen of making.

Fig. 3 A-3F is the example of the process implementation listed in exemplary plot 2A and 2B, and wherein, Fig. 3 A shows and becomes multiple net regions unit to form display window screen divider; Fig. 3 B describes the region that request user asks to retain; Fig. 3 C describes and the target window of asking the region retained to match; Fig. 3 D shows the existence of the window distributed on screen; Fig. 3 E shows window that the size and removing that changes the window distributed distributed in order to avoid overlapping target window, and target window is distributed to request user as new window; And Fig. 3 F show tiling distribute window maximize to make the utilization rate of screen.

Fig. 4 shows the example of the application of the open process of the display window on the same screen of management.

Embodiment

As used herein in instructions and claims, " user " means to have the entity of the identity can understood by a certain calculation element, procurator or personnel and can intercom mutually with calculation element to make user.Calculation element can be screen management device, or has any electronic installation of such as calculation server of computing power.This user can be the terminal user that can communicate with calculation element via physical user device.This physical user device can be portable terminal, such as smart mobile phone or panel computer.Selectively, this user can be any portable terminal that can communicate with calculation element.In addition, this user can be the software application of the identity can understood by calculation element simply.In order to software application can be enable to communicate with calculation element, this software application can be arranged in physical user device.Multiple software application can be arranged in a physical user device, and therefore multiple user is present in this physical user device equivalently.

Fig. 1 describes the electronic display system comprising screen 120 and screen management device 110, the request at least creating and distribute the new window on screen 120 that this screen management device 110 is made for processing multiple user in real time.Such as, this screen can be only reverberator (such as projection screen), or can be configured to luminescence (such as liquid crystal display).This screen management device 110 comprises one or more computation processor, and it is configured to the computation process of the method for the multiple display windows (such as, window 125a-125e) performed on real-time management screen 120 disclosed in the present invention.The management of multiple display window comprises establishment new window and removes existing window, and other typical window management is movable, such as, adjust size and redistribute the window distributed.

This screen management device 110 communicates with multiple user 140a-140n by communication link 145a-145n.Each communication link 145a-145n can be wired or wireless.It should be noted that, wireless link is preferred in many practical situations, because user or user's set (such as smart mobile phone or panel computer) can be used as the Long-distance Control of screen 120.Alternatively, communication interface 130 is included in screen management device 110 to make screen management device 110 can communicate with user 140a-140n.Advantageously, communication interface 130 can be configured to current screen content images, display window positions information and application message to be broadcast to user 140a-140n by screen management device 110.Communication interface 130 can also be configured to carry out authenticating user identification.

One aspect of the present invention is to provide the method for multiple display window on a kind of screen management device real-time management screen by communicating with multiple user.Even if screen has one or more display window distributing to one or more other user, unique user also can make to screen management device the request retaining region on screen.Each user has the preferred value representing the to a certain degree right using screen.At this, the relation of the priority between the user of preferred value and correspondence is as follows: higher than the preferred value of the second user, the preferred value of first user means that first user has precedence over the second user.By means of illustrating Fig. 2 A and 2B of the method flow performed by screen management device according to an exemplary embodiment of the present invention and providing Fig. 3 A-3F of example of the method flow that Fig. 2 A and 2B is shown, elaborate the method.

Fig. 2 A is the start-up course that the method comprises.

First by multiple for this screen divider net region unit (step 210), wherein each display window is formed by one or more net region unit.Fig. 3 A shows the division of screen by example.Screen 310 is divided into multiple net regions unit, and each net region unit is rectangle part 320.All net regions unit can be equal or unequal size, but dimension cells equal is in practice easy to be operated.

In one embodiment, perform the operation of net region unit screen 310 being divided into multiple equivalent size according to algorithm 1, wherein, each net region unit is embodied as rectangle part 320.

At this, in instructions and claims, adopt coordinate system 302 to carry out example technology and calculating method disclosed herein, this coordinate system 302 employs reference levels direction 303 and reference vertical direction 304.

W and H is respectively width and the height of screen 310.Wish screen 310 to be divided into N number of or about N number of rectangle part, wherein N is predetermined positive integer and can be determined according to many factors (such as the size of screen 310) by electronic display system.(i, j) individual rectangle part 320, C _i,j, there is use (iC _w, jC _h) the reference position coordinate 321 of specifying, and there is C _wwidth 322 and C _hheight 323, wherein i and j is the integer of non-negative.In figure 3 a, for convenience's sake, leftmost coordinate is above selected as with reference to position coordinates 321, but to it will be readily apparent to those skilled in the art that, other reference point any on rectangle part 320 can also to be selected.

algorithm 1.Pass through equation with evaluation C _wand C _h, wherein: with along reference levels direction 303 and the quantity dividing the rectangle part of screen 310 with reference to vertical direction 304 respectively; it is the lower bracket function being defined as the maximum integer being not more than x; And it is the flow in upper plenum being defined as the smallest positive integral being not less than x.Form C _i,javailability indexes i and j be given i ∈ 0,1 ..., M _w-1} and j ∈ 0,1 ..., M _h-1}.

The idea of exploitation algorithm 1 is to wish M _wclose to M _h.Because the region of different user request in shape may be completely different, if therefore make M _wclose to M _h, then the dirigibility in x-and the y-direction of any one user when selecting suitable display window can be obtained.

With reference to figure 2A, alternatively, preferred value (step 220) is specified to each user in multiple user.This step 220 is selectable in start-up course, because the preferred value of all users can be non-time-varying (therefore this step 220 is applicable) or can change in time (therefore the appointment of the preferred value of duplicate customer).

Fig. 2 B is the process of the request in region on the reservation screen of making of the request user in the multiple user of response comprised in the disclosure method.

After receiving the request from request user (step 230), determine the target window (TW) formed by one or more net region unit, at least cover the region (step 240) of specifying in above-mentioned request to make this TW.Fig. 3 B request user described as an example asks the region 330 retained, and wherein this request specifies the region 330 with width w, height h and reference position coordinate (x, y).Fig. 3 C describes and the TW 340 asking region 330 to be mated.

In one embodiment, the TW 340 mated with request region 330 is determined by algorithm 2.

algorithm 2.TW 340 is represented by A.Then A is determined by following formula:

$A=\underset{i\∈I,j\∈J}{\mathrm{\Σ}}{C}_{i,j}$

Wherein,

Further,

As used herein, in instructions and claims, summation symbol Σ is defined as the cascade of non-overlapped rectangle part.

After determining TW in step 240, determine whether to allow this request user to use this TW.This determines preferred value based on this user and the whether overlapping any display window distributed of this TW.In one approach, if the overlapping display window distributing to another user of this TW, then with reference to this another user preferred value and determine whether to allow this request user to use this TW.The method jointly realizes in the step 251-256 shown in Fig. 2 B.The method can be supplemented with additional strategy: if this TW is overlapping distribute to the display window of another user but the original area that in fact this another user asks does not have this TW overlapping, this request user is then allowed to use this TW (such as, suitably reducing the size of the display window of another user).By such by what can prove very soon, due to the tiling operation (step 280) of display window, therefore may there is this situation: the window distributing to another user is greater than the region of this another user request.

Whether elaborated by description step 251-256 hereinafter allows this request user to use the determination of this TW.By the description of step 251-256, it will be apparent for implementing above-mentioned additional policy for those of ordinary skill in the art, thus not carry out extra detailed description to it hereinafter.At first, step 251 is performed to check whether that inspected distributes to all windows of user.If no, then consider a unsighted window in step 252 and check its this TW whether overlapping.If no, then carry next unsighted window (if any) in step 253 and repeat step 251.Otherwise, represent that this TW overlap has P _kthe window of another user of preferred value.The preferred value of request user is represented with P.If P _k> P, then another user above-mentioned has the priority of the use screen than request user Geng Gao.Therefore, do not allow this request user to use this TW, unless obtained highest priority limit, suppose to provide this authority selecting selection request in step 255,256.If obtain this authority, then turn back to and carry another and do not check that window (if any) carries out the step 253 checked.If P _k≤ P, also forwards step 253 to.

In brief, this request user is allowed to use this TW by checking whether to meet any one condition to determine whether.First condition is that this TW does not have overlapping any display window (as step 252) distributed.If first condition does not meet, second condition is that the preferred value of request user is higher than the preferred value (as step 254) of other user any with at least one display window of having distributed overlapping with this TW.Alternatively, if second condition does not meet, Article 3 part is the authority (as step 255,256) that grant requests user uses this target window.

In one embodiment, determine whether to allow this request user to use this TW by algorithm 3a.

algorithm 3a.Represent to find out whether allow to ask user to use the quantity of the display window that the forth screen of this TW has distributed with n.In n the user with this display window distributed, kth user has preferred value P _k.With A _krepresent the display window distributing to kth user.As mentioned above, the priority of request user is P, and this TW is A.Determine whether to allow this request user to use this TW by following method: repeat about k=1 ... by all n, the inspection step of n, and if check that step then confirms to authorize this request user by this TW.The feature of this inspection step is as follows: if (A _k∩ A ≠ φ) ∧ (P _k>=P) be true, wherein φ is empty set, then refusal asks the request that user makes, otherwise by this inspection step.

If allow this request user to use this TW, then need the overlapping target window of display window avoiding having distributed.If one or more first window in the display window that this TW overlap has been distributed, then adjust one or more first window in order to avoid overlapping target window (step 262,264, the circulation of 263 and 261).The typical operation adjusting independent first window comprises adjustment size, removes and again settle this first window.Subsequently, this TW is distributed to request user (step 270), to form the renewal collection of the display window of distribution thus as new window.In another case, the not overlapping any display window distributed of this TW.Then, this TW is directly assigned to request user (step 270), to form the renewal collection of the display window of distribution thus as new window.As the example shown in Fig. 3 E, the new window 360a occupying the region identical with TW 340 region in Fig. 3 D is distributed to this request user.

As the example for example, Fig. 3 D shows in the layout adjusting the display window before the window distributed, and Fig. 3 E describes the layout of the display window after adjustment is complete.In fig. 3d, existence has preferred value P _maxmanagement window 353a, there is preferred value P ₁window 1351a, and there is preferred value P ₂window 2352a.There is TW 340 overlap of preferred value P management window 353a, window 1351a and window 2352a as above.At P _max> P > P ₁> P ₂concrete condition under, need the authority for allowing this request user to use TW 340.Assuming that obtain this authority.Reduce the size that management window 353a is of a size of the management window 353b shown in Fig. 3 E.Same reduction window 1351a is of a size of the size of window 1351b.Because TW 340 covers whole window 2352a, so remove window 2352a in adjustment.

In one embodiment, the adjustment of one or more first window is performed in order to avoid overlapping target window according to algorithm 3b by adjusting size or removing window.

algorithm 3b.Consider that the display window distributing to kth user is formed by one or more net region unit (rectangle part), and be represented as situation, wherein with wherein for a person skilled in the art, with all certifiable.The process adjusting the display window that this has distributed is as follows.

(3b.1) calculate therefore can by A _δbe expressed as wherein $I_{\mathrm{\δ}}=\{i_{\mathrm{\δ}}^{\min },...,i_{\mathrm{\δ}}^{\max }\}$ With $J_{\mathrm{\δ}}=\{j_{\mathrm{\δ}}^{\min },...,j_{\mathrm{\δ}}^{\max }\}.$

If (3b.2) A _δ≠ φ, then adjust A _kto become by the A of the given renewal of following formula _k:

$A_k=\max \{\underset{i=i_k^{\min }}{\overset{i_k^{\max }}{\mathrm{\Σ}}}\underset{j=j_k^{\min }}{\overset{j_{\mathrm{\δ}}^{\min }-1}{\mathrm{\Σ}}}{C}_{i,j},\underset{i=i_k^{\min }}{\overset{i_{\mathrm{\δ}}^{\min }-1}{\mathrm{\Σ}}}\underset{j=j_k^{\min }}{\overset{j_k^{\max }}{\mathrm{\Σ}}}{C}_{i,j},\underset{i=i_k^{\min }}{\overset{i_k^{\max }}{\mathrm{\Σ}}}\underset{j=j_{\mathrm{\δ}}^{\max }+1}{\overset{j_k^{\max }}{\mathrm{\Σ}}}{C}_{i,j},\underset{i=i_{\mathrm{\δ}}^{\max }+1}{\overset{i_k^{\max }}{\mathrm{\Σ}}}\underset{j=j_k^{\min }}{\overset{j_k^{\max }}{\mathrm{\Σ}}}{C}_{i,j}\}.$

Owing to screen having n the display window distributed, therefore repeat k=1 ... the adjustment process of n.

Note, in algorithm 3b, check the display window that all n have distributed, no matter their this TW whether overlapping.Therefore, before executing arithmetic 3b, do not need to understand display window this TW overlapping which has distributed.Also note, by adjusting the overlapping window distributed to contact TW, algorithm 3b can make the reduction of this display window distributed minimize, so that when this result window keeps admissible full-size, the result window of another user and TW are no longer overlapping.

With reference to figure 2B, after this TW being distributed to request user (step 270) as new window and obtain the renewal collection of the display window distributed, be laid in the display window (step 280) upgrading and concentrate the distribution comprised seriatim, refresh this screen thus.The object of the display window that tiling distributes is by amplifying each display window as far as possible to use this screen substantially.Therefore, make each display window adjustment size with original size to the new size being not less than original size, if or determine that this display window can not adjust size, make it keep original size.In addition, before the window of the second user is distributed in tiling, performing tiles to distribute to has the window of preferred value higher than any first user of the preferred value of any second user, and wherein the first and second users are among multiple user.As can be seen here, compared with " spare area " that have when the window of expansion second user, " spare area " for expanding the window of first user on screen is more.Therefore, compared with other user of lower priority, for first user provides the advantage using more giant-screen part potentially.

Example exemplarily, Fig. 3 F shows the result in order to the utilization rate and the window of specifying that tiles maximizing screen.Original window before tiling is shown in Fig. 3 E.The management window 353b in all windows of specifying with the highest preferred value before tiling becomes larger management window 353c.Then the new window 360a distributing to this request user is made to extend to a larger 360b.Because preferred value is minimum, therefore make original window 1351b finally change size, after tiling, it becomes larger window 1351c.

In one embodiment, the tiling being included in the display window upgrading the distribution of concentrating is performed according to algorithm 4.

Concentrate in renewal, have and be assigned display window individual user (therefore has individual display window).One or more display window distributed may be removed, therefore quantity n ~ can equal or n+1 can be not equal to due between the window phase that distributed in the adjustment of not overlapping TW.The order of successively decreasing with preferred value will individual user's sequence or rearrangement are to obtain sorted lists.Represent ranking functions with ψ, thus ψ (k) is given in the position of a kth user in the sorted lists of user.Such as, if ψ (k)=2, then a kth user is all there is in individual user the second the highest preferred value.If wish that find out which user is kth ' position in sorted lists, then calculate k=ψ ^-1(k '), a kth user has kth ' position whereby.As mentioned above, by A _kbe expressed as wherein $I_k=\{i_k^{\min },...,i_k^{\max }\}$ With $J_k=\{j_k^{\min },...,j_k^{\max }\}.$

As used herein, in instructions and claims, the situation of symbol ∞ for representing that on screen, region is not used or is not also assigned with.

algorithm 4.Tiling upgrades concentrated the process of the display window of individual distribution is as follows.

(4.1) when for true time, then perform step below:

If (4.1.1) then calculate as A _krenewal, and upgrade I thus _kand J _k;

If (4.1.2) then calculate as A _krenewal, and upgrade I thus _kand J _k;

If (4.1.3) then calculate as A _krenewal, and upgrade I thus _kand J _k; With

If (4.1.4) then calculate as A _krenewal, and upgrade I thus _kand J _k.

(4.2) for k '=1 ..., , strictly to have by k=ψ ^-1this order of the k value that (k ') calculates performs (4.1).

Note, step (4.1.1)-(4.1.4) can be performed with random order.Such as, if perform step with the order of (4.1.1), (4.1.2), (4.1.3) and (4.1.4), then algorithm 4 is configured to by following manner extended window: first check whether can extended window left side [step (4.1.1)], then check its top side [step (4.1.2)], check [step (4.1.3)] on the right side of window subsequently, and finally check its bottom side [step (4.1.4)].

Provide the example of the application of the open method illustrated for depositing display window management in case multi-user in the diagram.Fig. 4 describes the use sight of on-line study, wherein can use the window on screen after by the teacher's granted rights as keeper as the student of Standard User.Screen have two display windows 410 (rectangle part 1420 and rectangle part 2430).There are a teacher (teacher) and three students (student A, student B and student C).Teacher, student A, student B and student C have P respectively _a, P _s, P _sand P _cpreferred value, wherein P _a< P _s< P _c.In the first moment, teacher asks to retain rectangle part 1420 and rectangle part 2430, and these two parts all distribute to teacher.In the second moment, student A asks to use rectangle part 1420.Because student A has the preferred value less than teacher, therefore ask teacher to student A granted rights.In this example, this authority is authorized.Allow student A to use rectangle part 1420 subsequently, the display window that teacher uses simultaneously reduces size to only there being a rectangle part 2430 from two parts 420,430.In the 3rd moment, student B asks to use rectangle part 2430.Again, teacher is asked whether will the authority of this part to be used to authorize to student B.Authorize this authority in this example.In order to allow student B to use this rectangle part, by the display window of teacher removed on rectangle part 2430.In the 4th moment, preferred value asks to use rectangle part 1420 lower than the student C of the preferred value of student A.In this example, ask the teacher as keeper to consider the request of student C, and teacher finally determine the authority of not authorizing use rectangle part-1420 to student C.Therefore, the request that student C makes is rejected.

As mentioned above, perform the device according to the method for any embodiment of method disclosed herein by configuration, screen management device can be realized.By comprising screen and this screen management device, also electronic display system can be realized.

Use general or special calculation element, computer processor or include, but are not limited to digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) electronic circuit and according to of the present disclosure instruction configuration or programming other programmable logic device (PLD), embodiment disclosed herein can be realized.Based on instruction of the present disclosure, the technician of software or electronic applications can easily prepare to operate in the computer instruction in general or special calculation element, computer processor or programmable logic device (PLD) or Software Coding.

When not departing from spirit of the present invention or essential characteristic, the present invention can be made in other specific forms to specialize.Therefore think that the present embodiment is all exemplary in all respects and is not restrictive.The description that this scope of invention be can't help by claims above limits, and all changes therefore in the meaning and scope of claim equivalent all comprise in the present invention.

Claims (17)

1. one kind by can with the method for the multiple display windows on the screen management device real-time management screen of multiple telex network, even if screen has one or more display window distributing to one or more other user, also unique user is allowed screen management device to be made to the request in the region retained on screen, each user has the preferred value representing the entitlement level using this screen, and the method comprises:

This screen divider is become multiple net regions unit, each display window is formed by one or more net region unit thus;

After the request receiving the request user in multiple user, determine the target window formed by one or more net region unit, at least cover the region of specifying in the request of request user to make this target window;

Determine whether to allow this request user to use this target window;

If allow this request user to use this target window, then:

If the not overlapping any display window distributed of (a) this target window, then this target window is distributed to request user, to form the renewal collection of the display window of distribution thus as new window; With

If one or more first window in b () this target window the is overlapping display window distributed, then adjust one or more first window in order to avoid this target window overlapping, and subsequently this target window is distributed to request user, to form the renewal collection of the display window of distribution thus as new window; With

Tiling upgrades the display window concentrating the distribution comprised seriatim, size is changed to the new size being not less than original size to make each display window with original size, if or determine to adjust size, make each display window with original size keep original size, wherein before the window of the second user is distributed in tiling, perform tiling and distribute to the window of preferred value higher than any first user of the preferred value of any second user, wherein first user and the second user are in multiple user.

2. method according to claim 1, wherein by check whether satisfy condition in any one determine whether allow request user use target window, wherein:

First condition is the not overlapping any display window distributed of this target window; With

If do not meet first condition, second condition is that the preferred value of request user is higher than the preferred value of other user any with at least one display window of having distributed overlapping with this target window.

3. method according to claim 2, wherein

If do not meet second condition, Article 3 part authorizes request user the authority using this target window.

4. method according to claim 1, wherein adjusts one or more first window and comprises the size of the independent first window of change or remove independent first window.

5. method according to claim 1, also comprises:

Preferred value is specified to user each in multiple user.

6. method according to claim 1, wherein, according to C _w=W/M _wand C _h=H/M _hby have that width W and the screen divider of height H become to have equivalent size and each be wide C _wwith high C _hmultiple net regions unit of rectangle part, wherein with wherein lower bracket function, be flow in upper plenum, and N is predetermined positive integer.

7. method according to claim 1, wherein determines whether to allow this request user to use this target window to comprise:

For k=1 ... n, rechecking step, wherein checks that the feature of step is: if (A _k∩ A ≠ φ) ^ (P _k>=P) be true, then refuse the request that this request user makes, otherwise by this inspection step, wherein n is the quantity of the display window distributed on screen, and A is target window, A _kthe display window distributing to kth user, P _kbe the preferred value of kth user, P is the preferred value of request user, and φ is empty set; With

If confirm to check step by all n, permit this target window being authorized request user.

8. method according to claim 1, wherein

Each net region unit is wide C _wwith high C _hrectangle part, and

By A=Σ _{i ∈ I, j ∈ J}c _i,jdetermined to be expressed as the target window of A by the region with width w, height h and reference position coordinate (x, y), wherein

lower bracket function, C _i,jthat there is reference position coordinate (iC _w, jC _h) (i, j) individual rectangle part.

9. method according to claim 8, one or more first window wherein adjusted in the display window distributed comprises the steps:

(1) A is calculated _δ=A _k∩ A, therefore by A _δbe expressed as wherein $I_{\mathrm{\&delta;}}=$ $\{i_{\mathrm{\&delta;}}^{\min },...,i_{\mathrm{\&delta;}}^{\max }\}$ With $J_{\mathrm{\&delta;}}=\{j_{\mathrm{\&delta;}}^{\min },...,j_{\mathrm{\&delta;}}^{\max }\},$ Wherein A _kcan be expressed as $A_k={\mathrm{\&Sigma;}}_{i\&Element;I_k,j\&Element;J_k}{C}_{i,j},$ Wherein $I_k$ $=\{i_k^{\min },...,i_k^{\max }\}$ With $J_k=\{j_k^{\min },...,j_k^{\max }\},$

(2) if A _δ≠ φ, then adjust A _kto become the A of the renewal provided by following formula _k: $A_k=\max \{\underset{i=i_k^{\min }}{\overset{i_k^{\max }}{\mathrm{\&Sigma;}}}\underset{j=j_k^{\min }}{\overset{j_{\mathrm{\&delta;}}^{\min }-1}{\mathrm{\&Sigma;}}}{C}_{i,j},\underset{i=i_k^{\min }}{\overset{i_{\mathrm{\&delta;}}^{\min }-1}{\mathrm{\&Sigma;}}}\underset{j=j_k^{\min }}{\overset{j_k^{\max }}{\mathrm{\&Sigma;}}}{C}_{i,j},\underset{i=i_k^{\min }}{\overset{i_k^{\max }}{\mathrm{\&Sigma;}}}\underset{j=j_{\mathrm{\&delta;}}^{\max }+1}{\overset{j_k^{\max }}{\mathrm{\&Sigma;}}}{C}_{i,j},\underset{i=i_{\mathrm{\&delta;}}^{\max }+1}{\overset{i_k^{\max }}{\mathrm{\&Sigma;}}}\underset{j=j_k^{\min }}{\overset{j_k^{\max }}{\mathrm{\&Sigma;}}}{C}_{i,j}\};$ With

(3) for k=1 ... n, repeats step (1) and (2).

10. method according to claim 8, wherein works as A _kcan be expressed as time, wherein with tiling upgrades and concentrates the display window of the distribution comprised to comprise the steps: seriatim

(4) when for true time, then perform:

If then calculate as A _krenewal and upgrade I thus _kand J _k;

If then calculate as A _krenewal and upgrade I thus _kand J _k;

If then calculate as A _krenewal and upgrade I thus _kand J _k;

If then calculate as A _krenewal and upgrade I thus _kand J _k; With

(5) for strictly to have by k=ψ ^-1this order of the k value that (k ') calculates performs step (4), wherein be the quantity upgrading the display window concentrating the distribution comprised, ψ is when the order sequence of successively decreasing with preferred value is assigned with display window ψ (k) is made to provide the ranking functions of the position of a kth user during individual user.

The screen management device of the multiple display windows on 11. 1 kinds of real-time management screens, wherein screen management device can with multiple telex network, wherein each user has the preferred value representing the entitlement level using this screen, even if screen has one or more display window distributing to one or more other user, also allow each user screen management device to be made to the request retaining region on screen, wherein screen management device comprises one or more processor of the process being configured to perform method as claimed in one of claims 1-10.

12. screen management devices according to claim 11, wherein this screen management device is also configured to the request of wireless receiving from request user.

13. screen management devices according to claim 11, also comprise communication interface, and this communication interface is configured to broadcast the application message of current screen content images, display window positions information and multiple user, and is configured to managing user identities certification.

14. 1 kinds of electronic display systems comprising screen and screen management device according to claim 11.

15. 1 kinds of electronic display systems comprising screen and screen management device according to claim 12.

16. 1 kinds of electronic display systems comprising screen and screen management device according to claim 13.

17. electronic display systems according to claim 14, wherein this screen is projecting apparatus screen or is configured to luminescence.