CN104281392A - Method and device for controlling movement of pointer of screen - Google Patents
Method and device for controlling movement of pointer of screen Download PDFInfo
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- CN104281392A CN104281392A CN201410518326.3A CN201410518326A CN104281392A CN 104281392 A CN104281392 A CN 104281392A CN 201410518326 A CN201410518326 A CN 201410518326A CN 104281392 A CN104281392 A CN 104281392A
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- selected zone
- cursor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
Abstract
The invention relates to a method and a device for controlling movement of a pointer of a screen. The device for controlling movement of the pointer of the screen comprises an inputting unit, a first display unit, an interface unit and a screen pointer movement control unit, wherein the inputting unit receives a screen pointer movement command from a user; the first display unit displays screen contents comprising a screen pointer; a selected region is determined from the screen contents by the interface unit; and the screen pointer movement control unit is used for calculating movement of the screen pointer in the selected region. By the method and the device for controlling the movement of the pointer of the screen, the user only needs to move within a narrow range.
Description
Technical field
The present invention relates to interface, particularly relate to a kind of method and apparatus controlling screen pointer movement.
Background technology
Mobile phone now, PDA, PC, IPTV etc. provide multiple user interfaces.Particularly PC, a large amount of operations manipulates screen cursor via mouse input and performs.
Along with the function of mobile phone, PDA and IPTV is improved, for mobile phone, PDA and IPTV provide the interface of PC rank to become possibility.
Usually the interface operating IPTV is used a teleswitch.But the key-press input of telepilot does not have mouse convenient in moving screen pointer.In order to the screen cursor being positioned at display screen side is moved to opposite side, user must stand the inconvenience of always pressing a button on telepilot.Although can use mouse that screen cursor is moved quickly to target, because telepilot only can moving screen pointer at a predetermined velocity, therefore telepilot need user to wait until screen cursor arrives target.If although screen cursor speed is established quicker would not be time-consuming oversize, another one problem can be caused like this, that is, screen cursor accurately cannot be moved to target.
Due to the resolution that display device support is higher, in PC, the travel distance of screen cursor becomes much far away.Thus, need user to carry out operating mouse with larger moving range.Although the travel distance of mouse can be configured to increase in proportion with the translational speed of mouse, this also can cause a problem, that is, use the screen cursor performance accuracy of mouse to become decline.
Summary of the invention
The invention provides a kind of method and apparatus utilizing selected zone to control screen pointer movement.
The other problems that the present invention will solve more can be known by following description.
One aspect of the present invention is a kind of device controlling screen pointer movement, and it comprises: input block, and it is configured to the order receiving moving screen pointer from user; First display unit, it is configured to show the screen content comprising described screen cursor and interface; Boundary element, it is configured to set selected zone in described screen content; And cursor movement control unit, it is configured to calculate the movement of the screen cursor in described selected zone.
Another aspect of the invention is a kind of method controlling screen pointer movement in platform, described platform can set selected zone and be provided for setting the selected zone information of described selected zone in screen content, and described method comprises: (a) receives described selected zone information from described platform; B () estimates screen cursor region by described selected zone information, and judge whether described screen cursor leaves described cursor region; C () moves judgement optional m igration region from selected zone described in one of them of identifying unit according to region; And described screen pointer position compensates to described moving area by (d).Described screen cursor region is the selected zone at described screen cursor place, and described moving area is the selected zone that described screen cursor will move to.
The invention provides a kind of method and apparatus controlling screen pointer movement.
The invention provides the method and apparatus that a kind of user only need carry out the control screen pointer movement of less movement.
Accompanying drawing explanation
Fig. 1 shows the device for controlling screen pointer movement according to the embodiment of the present invention;
Fig. 2 shows the screen cursor mobile control unit according to the embodiment of the present invention;
Fig. 3 shows the selected zone according to the embodiment of the present invention;
Fig. 4 shows selected zone according to another embodiment of the present invention;
Fig. 5 shows the method for selected zone will moved on it according to the selection screen cursor of the embodiment of the present invention;
Fig. 6 shows the method for selected zone selecting screen cursor to move on it according to another embodiment of the present invention;
Fig. 7 illustrates that the screen cursor according to the embodiment of the present invention moves the process flow diagram of rate-determining steps;
Fig. 8 shows original pattern content, how to copy screen content according to embodiments of the invention generation to describe;
Fig. 9 show according to the embodiment of the present invention by Fig. 8 original pattern Content Transformation copy screen content.
Embodiment
Because the present invention can have multiple merging and embodiment, description describes specific embodiment.But this does not also mean that and limits the invention to specific embodiment, but be to be appreciated that comprise comprised by the spirit and scope of the present invention all displacements, equivalent and sub.
The statement used in this instructions only means some embodiment of description, and does not mean that restriction the present invention.Unless determined separately, the statement of singulative comprises the meaning of plural form.In this instructions, " to comprise " or the statement of " containing " and so on means and refers to a feature, a quantity, a step, an operation, an element, or their part or merging, and should not think and get rid of one or more other features, quantity, step, operation, element, or their part or the existence of merging and possibility.
Unless otherwise defined, all terms comprising scientific and technical terminology used herein have the implication identical with the implication that the those of ordinary skill in the technology of the present invention field is generally understood.Any term defined in general dictionary has identical meanings under correlative technology field background, unless and clearly define separately, should not be construed as and there is Utopian or too formal implication.
In addition, although be described in detail with reference to the attached drawings some embodiments, in each width figure, identical element has been designated as identical label, and does not repeat repeating of identical or corresponding element.In whole part instructions of the present invention, when judging that certain known technology of description and inventive point of the present invention have nothing to do, omitting it and repeating.
Hereafter described " screen cursor " means so a kind of interface, namely can point to and mouse pointer of the PC of interface object shown by operating display and so on.
Fig. 1 shows the device for controlling screen pointer movement according to the embodiment of the present invention
With reference to figure 1, the described device for controlling screen pointer movement comprises the first display unit 100, boundary element 101, screen cursor mobile control unit 102, input block 103 and the second display unit 104.
First display unit 100 is for display screen content is to provide the functional element of visual information to user.
Boundary element 101 generates and upgrades the interface of described screen cursor mobile controller.Such as, boundary element 101 is display screen pointer on a display screen, and receives screen pointer position to upgrade described position and to show described screen cursor from screen cursor mobile control unit 102.In addition, boundary element 101 sets selected zone, and described selected zone is the region that screen cursor can be positioned at.Such as, the control (button control) receiving screen cursor input in user interface can be set as selected zone by boundary element 101.In addition, can according to the module of the setting coordinate selected zone of application program (such as by providing, API), such region can be set as selected zone, the position configured by Application developer in the position that the application program that namely can operate in described screen cursor mobile controller shows.The center point coordinate of the selected zone being used for the control of the input that can receive each screen cursor can be set to default value by boundary element 101.Boundary element 101 also provides the module (such as, API) that independently can set the center point coordinate of selected zone.Describe according to selected zone of the present invention with reference to Fig. 3.
Screen cursor in screen cursor mobile control unit 102 pairs of selected zone moves and calculates.Such as, in screen cursor mobile control unit 102 pairs of selected zone by boundary element 101 the coordinate of screen cursor movement that configures compensate.With reference to Fig. 2, screen cursor mobile control unit 102 is described.
Input block 103 is the mechanism of the screen cursor movement directive receiving user.Input block 103 can be mouse, telepilot or Trackpad.Such as, operation information according to the mouse action generating run information of user, and can be transferred to boundary element 101 by input block 103.
Second display unit 104 is such functional unit, and its display is different from the independently screen content of the first display unit 100.Should be understood that the second display unit 104 can be the part of screen of the first display unit 100.
In addition, input block 103 be embodied as independent of screen cursor mobile device autonomous device (such as, mobile phone or telepilot) when, the second display unit 104 can be included in described autonomous device using as the screen of telepilot or mobile phone or touch screen.
Fig. 2 shows the screen cursor mobile control unit according to the embodiment of the present invention.
With reference to figure 2, screen cursor mobile control unit 102 comprises mode switch element 105, selected zone receiving element 110, region are moved identifying unit 120, screen pointer position compensating unit 130 and copy screen content providing unit 140.
When receiving the input signal of certain shortcut from boundary element 101, mode switch element 105 switch mode.Described pattern can be general modfel or control model.In general modfel, the control of screen cursor movement and selected zone have nothing to do, that is, move the same with general screen cursor.In control model, only move in selected zone and control screen pointer position.Along with mode switch element 105 switches to control model after receiving the input signal of certain shortcut from boundary element 101, control model request signal is sent to selected zone receiving element 110 by mode switch element 105.Control model request signal is such signal, and namely the function of identifying unit 120 is moved in request execution selected zone receiving element 110 and region.In other words, in general modfel, the function that identifying unit 120 does not perform them is moved in selected zone receiving element 110 and region.
Once receive mode switching signal and described pattern switches to control model from mode switch element 105, selected zone receiving element 110 receives selected zone configuration information from boundary element 101.That is, selected zone receiving element 110 can receive selected zone information from boundary element 101, and described selected zone information comprises scope and the centre coordinate in the area being configured to viewing area in institute's output screen content on the display device.Selected zone configuration information moves identifying unit 120 from selected zone receiving element 110 input area.In addition, the coordinate of current cursor moves identifying unit 120 from boundary element 101 input area.Then, identifying unit 120 is moved with reference to selected zone configuration information to judge whether screen cursor is arranged in selected zone in region.Region is moved identifying unit 120 and is periodically judged whether screen cursor is arranged in selected zone, and when screen cursor moves Selection Out region, region is moved request signal and be sent to screen pointer position compensating unit 130.Coordinate and the selected zone configuration information that request signal comprises current screen pointer is moved in described region.
Screen pointer position compensating unit 130 moves request signal compensating light target position according to region.Such as, screen pointer position compensating unit 130 compensatory zone moves the screen cursor coordinate in request signal and the coordinate through compensating is sent to boundary element 101, like this, screen cursor just moves to selected zone nearest in the selected zone be on such line, namely through current screen pointer coordinate, extend to the line of the boundary line of selected zone around from vertical line.
In addition, screen cursor is positioned at outside selected zone when selecting areas accept unit 110 to be transformed into control model from pattern after mode switch element 105 receiving mode switching signal from general modfel, screen cursor can be controlled in selected zone hithermost center in the heart.
Copy screen content providing unit 140 and extract the selected zone only existed in the screen content shown, and the screen content of the selected zone wherein combining extraction to some extent (being hereinafter called " copying screen content ") is provided.Copy screen content and be sent to the second display unit 104 by boundary element 101.
The compensation process of screen pointer position is hereinafter described in detail with reference to Fig. 5.
Fig. 3 shows the selected zone according to the embodiment of the present invention, and Fig. 4 shows selected zone according to another embodiment of the present invention.
Cancellation (log-off) screen content of the Microsoft's Window operating system (Microsoft Windows) be arranged on PC is shown with reference to figure 3 and Fig. 4, Fig. 3.The screen cursor in region 210 and 220 is used to do actual input.Therefore, selected zone can be set to region 210 and 220, and screen cursor can be used to input described region.
Multiple selected zone with clear and definite distance continuous arrangement or lean on very near, just as region 210 and 230, then multiple selected zone identifiable design is a selected zone, as shown in selected zone 250.Such as, if having Continuous Selection region and the width of each selected zone and be highly less than preliminary dimension, then described Continuous Selection region may be combined with until the width that combines and highly become preliminary dimension or be greater than preliminary dimension, and is identified as a selected zone.In other words, the selected zone being less than preliminary dimension can be identified as the selected zone combined with adjacent selected zone by selected zone receiving element 110.
In Fig. 4, application program represents for the selected zone in active window.The screen cursor in region 310 ~ 350 can be used to input, and described region can be set as selected zone.When application program, except the user interface that operating system provides, separate interface (such as 340) can be set up in the application and can cursor input be used.Operating system can provide such module, can set selected zone and allows developer to set in the application and develop this selected zone.
Fig. 5 shows the method for selected zone will moved on it according to the selection screen cursor of the embodiment of the present invention.
In the following description, screen cursor is positioned at three different positions 410,420,430.Three positions 410,420,430 are positioned on the boundary line in selected zone (hereinafter referred to as " screen cursor region "), and current screen pointer is positioned on described boundary line.When cursor moves from position 410 and leaves boundary line, region move identifying unit 120 judge screen pointer position outside selected zone, formation zone moves request signal and region moved request signal and be sent to screen pointer position compensating unit 130.
Screen pointer position compensating unit 130 calculates a dummy line, described dummy line perpendicular to the boundary line of the selected zone at the screen cursor place on position 410, and screen pointer position compensating unit 130 from described dummy line select immediate selected zone as screen cursor by the selected zone moved to (being hereinafter called " moving area ") the selected zone that passes through.Then, screen pointer position compensating unit 130 screen pointer position is compensated for as selected selected zone central point, the coordinate of screen cursor through compensating is sent to platform, and control described platform with final mobile cursor.
When screen cursor moves away boundary line from position 420, screen pointer position compensating unit 130 calculates a dummy line, described dummy line perpendicular to the boundary line (similar with the situation of position 410) of the selected zone of position 420, and from described dummy line select hithermost selected zone will to move to as screen cursor the selected zone that passes through moving area.When position 420, due to this line not having selected zone, the position of screen cursor is not compensated for as another selected zone from current selected zone, but is compensated for as and makes screen cursor not leave current selected zone.Namely, if screen cursor by input equipment (such as, mouse, Trackpad etc.) input from the coordinate (x of position 420, y) coordinate (x+1 is moved to, y+1), then get rid of the input of movement along the x-axis direction, and the position compensation of screen cursor is coordinate (x, y+1).
If screen cursor leaves boundary line from position 430, then screen pointer position compensating unit 130 performs the step identical with position 410, and the coordinate of screen cursor is compensated for as position 450, and the coordinate through compensating is sent to platform.
6 show the method for selected zone selecting screen cursor to move on it according to another embodiment of the present invention.
In following description, screen cursor is positioned at three different positions 510,520,530.Three positions 510,520,530 are positioned on the boundary line residing for current screen pointer.Each selected zone in Fig. 6 comprises central point 540,550,560.With reference to figure 6, when cursor leaves boundary line from position 510, region move identifying unit 120 judge screen pointer position outside selected zone, formation zone moves request signal and region moved request signal and be sent to screen pointer position compensating unit 130.
Screen pointer position compensating unit 130 calculates a dummy line, described dummy line from the central point 540 of the selected zone at screen cursor place by position 510, and from the described dummy line calculated select hithermost selected zone will to move to as screen cursor the selected zone that passes through moving area.Therefore, screen pointer position compensating unit 130 using be positioned at described dummy line comprises central point 550 selected zone as moving area.
Screen cursor coordinate is compensated for as the coordinate of the central point 550 of the selected zone moved on it, the screen cursor coordinate through compensating is sent to platform by screen pointer position compensating unit 130.
When screen cursor moves away boundary line from position 520, screen pointer position compensating unit 130 calculates a dummy line, the center 540 of the selected zone that described dummy line is positioned at from the screen cursor of position 520 is by position 520, similar with the situation of position 510, and the moving area selecting hithermost selected zone will to move to as screen cursor from the selected zone residing for the described dummy line calculated.When position 520, due to this line not having selected zone, the position of screen cursor is not compensated for as another selected zone from current selected zone, but is compensated for as and makes screen cursor not leave current selected zone.Namely, if screen cursor by input equipment (such as, mouse, Trackpad etc.) input from the coordinate (x of position 520, y) coordinate (x+1 is moved to, y+1), then get rid of the input of movement along the x-axis direction, and the position compensation of screen cursor is coordinate (x, y+1).
If screen cursor moves away boundary line from position 530, then screen pointer position compensating unit 130 performs the step identical with position 510, and the coordinate of screen cursor is compensated for as position 560, and the coordinate through compensating is sent to platform.
Although already having described with reference to figure 5 and 6 makes moving area move according to current screen pointer position, the moving area also screen cursor can being selected to move to according to the weighted value for each selected zone configuration.Herein, selected zone information can comprise the weighted value corresponding with each selected zone.Weighted value can be set to the default value in operating system, or is set by API by developer.Such as, move identifying unit 120 to have received the screen pointer position compensating unit 130 moving request signal in region analyze from region the weighted value distributing to each selected zone.Cursor position compensating unit 130 is less than or equal in the selected zone of screen cursor sub-region right value the moving area selecting to have maximum weighted value in analyzed weighted value in weighted value.Identical and when being less than or equal to selected zone weighted value in the weighted value of multiple selected zone, with reference to figure 5 with 6 step select in multiple selected zone that weighted value is identical one.
In addition, the moving area that identifying unit 120 selects screen cursor to move to the inverted order of weighted value (reverse order) is moved in region.Herein, region is moved the boundary line that identifying unit 120 can leave selected zone according to screen cursor via it and is carried out moving screen pointer with the positive sequence of weighted value (forward order) or inverted order.
With reference to figure 7, screen cursor mobile control unit 102 receives selected zone information and screen cursor coordinate (610).
Screen cursor mobile control unit 102 judges whether screen cursor is positioned at selected zone (620).
If screen cursor is positioned at selected zone, screen cursor mobile control unit 102 repeats step 610.
If screen cursor is not in selected zone, the moving area (630) that screen cursor mobile control unit 102 selects screen cursor to move to.Already described the selection step of moving area with reference to figure 5 and 6, therefore repeated no more.
Then, the compensation coordinate of screen cursor is sent to boundary element 101 and is compensated for as screen cursor coordinate to make the center point coordinate of moving area by screen cursor mobile control unit 102.
Fig. 8 shows original pattern content, copies screen content to describe how to generate according to embodiments of the invention, Fig. 9 show according to the embodiment of the present invention by Fig. 8 original pattern Content Transformation copy screen content.Herein, leading line 710 ~ 780 is such line, and it is through the pixel near selected zone outside.
Fig. 8 shows three selected zone.Hereinafter, these three selected zone are called the first selected zone 701, second selected zone 702 and the 3rd selected zone 703.Copy screen content providing unit 140 and copy screen content by the generation of one or more selected zone of combination.Copy screen content providing unit 140 to remove without the pixel column of selected zone and pixel column in original pattern content, and adjust screen content size to coordinate concrete resolution.
Such as, copy screen content providing unit 140 and remove the row it not having selected zone.That is, the pixel between leftmost column and line 710 column is removed.Then, copy screen content providing unit and remove pixel between line 720 column and line 730 column, and remove line 740 column and the rightmost side arrange between pixel.
After this, copy screen content providing unit 140 remove the most up and line 750 be expert between all pixels.Copy screen content providing unit 140 remove line 760 be expert at and line 770 be expert between all pixels.Then, copy screen content providing unit 140 remove line 780 be expert at and the most descending between all pixels.
Once copy screen content providing unit 140 to eliminate all pixel columns without selected zone and pixel column in Fig. 8 screen, selected zone can be arranged as shown in Fig. 9.
Copy the size that screen content providing unit 140 adjustable is wherein arranged with the screen content of selected zone as shown in Figure 9, to make copying screen, there is predetermined resolution.Such as, copy screen content providing unit 140 and can reduce or amplify the screen wherein combining and have selected zone, to make the resolution of composite screen consistent with the predetermined resolution copying screen.
According to the screen pointer position compensating unit 130 of the embodiment of the present invention by carrying out configuration logic pixel according to the size of selected zone minimum in original pattern thus compensating screen pointer position.Such as, logical pixel is configured to the length identical with the shortest horizontal length (pixel) of selected zone in original pattern.And, by the vertical length of the process computational logic pixel identical with horizontal length.Such as, if logical pixel is 2x3, screen pointer position compensating unit 130 compensates screen pointer position to make it to move 2 pixels in the horizontal direction and to move in the vertical direction 3 pixels at every turn.Due to pixel generally each only mobile pixel, therefore by using logical pixel to change the translational speed of screen cursor according to the size of selected zone.
Although above-mentioned logical pixel is described as respectively the shortest horizontal length and the shortest vertical length in the selected zone in original pattern are configured to horizontal length and the vertical length of logical pixel, one skilled in the art will understand that horizontal length and the vertical length that respectively the value being less than the shortest horizontal length of selected zone and the value that is less than the shortest vertical length of selected zone can be configured to logical pixel.
In addition, boundary element 101 can show, semi-transparently show or do not show central point and the boundary line of each selected zone, and this kind of visual information can be supplied to user by least one in the first display unit 100 and the second display unit 104.
Herein, the first display unit 101 and the second display unit 104 can show independently of each other, semi-transparently display or do not show central point and the boundary line of selected zone.
As mentioned above, some embodiment of the present invention has been described.Many embodiments being different from described embodiment can be had in claim of the present invention.General technical staff of the technical field of the invention should understand the present invention can have various arrangement, and does not depart from technical characteristic of the present invention.Therefore, described embodiment is interpreted as illustrative, and nonrestrictive.Scope of the present invention limited by appended claim, but not above-mentioned explanation, and should be understood that the difference that the present invention includes in all equivalency range.
Claims (8)
1. control a device for cursor movement, comprising: input block, it is configured to the order receiving mobile cursor from user, first display unit, it is configured to show the screen content comprising described cursor and interface, boundary element, it is configured to set selected zone in described screen content, cursor movement control unit, it is configured to calculate the movement of the cursor in described selected zone, mode switch element, it is configured to according to the input signal distributing shortcut from described boundary element and switches to one of general modfel and control model, wherein said general modfel is the irrelevant pattern of the movement of described cursor and described selected zone, and described control model is the pattern of described cursor only movement in described selected zone, wherein said cursor movement control unit comprises: selected zone receiving element, it is configured to receive selected zone information from described boundary element, identifying unit is moved in region, and it is configured to pass described selected zone information and estimates cursor region, and judges whether described cursor leaves described cursor region, and cursor position compensating unit, it is configured to move the judgement of identifying unit from a selected zone optional m igration region the multiple selected zone set by described selected zone information according to described region, and described cursor position is compensated to described moving area, wherein, described cursor region is the selected zone at described cursor place, and described moving area is the selected zone that described cursor will move to.
2. the device as described in claim 1, also comprises: copy screen content providing unit, and what it was configured to provide combination to have a described selected zone copies screen content; And second display unit, it is configured to copy screen content described in display.
3. the device as described in claim 2, wherein: described in copy screen content providing unit and remove in described screen content without the pixel included by the columns and rows of described selected zone; And the screen content that the pixel column without described selected zone wherein and pixel column have been removed is compensated for as predetermined resolution, thus copies screen content described in generating.
4. the device as described in claim 1, wherein: described cursor position compensating unit selects so described moving area, namely, described moving area is, passing perpendicularly through in the crossing selected zone of the such line in boundary line, described cursor region with from described cursor position, the selected zone near described cursor of outside, described cursor region; And describedly from described cursor position, pass perpendicularly through the such line in boundary line, described cursor region without described cursor region.
5. the device as described in claim 1, wherein said cursor position compensating unit selects so described moving area, namely, described moving area is, with the central point from described cursor region and in the selected zone that such line is crossing by described cursor position, the selected zone near described cursor of outside, described cursor region.
6. device as claimed in claim 5, wherein said central point is set to the default value of each described selected zone by described boundary element, or via setting the pre-configured described central point of module of described selected zone.
7. device as claimed in claim 1, wherein said cursor position compensating unit selects described moving area according to the weighted value of described cursor region.
8. device as claimed in claim 7, wherein said weighted value is set to the default value of each described selected zone by described boundary element, or via setting the pre-configured described weighted value of module of described selected zone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410518326.3A CN104281392A (en) | 2014-10-02 | 2014-10-02 | Method and device for controlling movement of pointer of screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410518326.3A CN104281392A (en) | 2014-10-02 | 2014-10-02 | Method and device for controlling movement of pointer of screen |
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| CN104281392A true CN104281392A (en) | 2015-01-14 |
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| CN201410518326.3A Pending CN104281392A (en) | 2014-10-02 | 2014-10-02 | Method and device for controlling movement of pointer of screen |
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| US10990280B1 (en) * | 2018-12-03 | 2021-04-27 | Parallels International Gmbh | Smart keyboard |
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