CN103425398B - The operating method and device of a kind of Pan and Zoom logical waveform - Google Patents
The operating method and device of a kind of Pan and Zoom logical waveform Download PDFInfo
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- CN103425398B CN103425398B CN201210152988.4A CN201210152988A CN103425398B CN 103425398 B CN103425398 B CN 103425398B CN 201210152988 A CN201210152988 A CN 201210152988A CN 103425398 B CN103425398 B CN 103425398B
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Abstract
The embodiment of the present invention provides the operating method and device of a kind of Pan and Zoom logical waveform, and methods described includes：In logical waveform viewing area, current cursor is pointed to by operation associated point of interest by moving coordinate location equipment, it is described operation associated including translation and/or zoom operations；Using coordinate positioning apparatus triggering one indicative handle icon of display, the centre coordinate point of the indicative handle icon is the operation associated point of interest, and the indicative handle icon has and the operation associated corresponding multiple operation instructions being pointed in different directions；Keep the coordinate positioning apparatus to be in operation triggering state, translation and/or zoom operations are carried out to the logical waveform towards the different directions movement coordinate positioning apparatus according to the multiple operation instruction.It is more convenient and directly perceived that the method operates the Pan and Zoom of logical waveform, lifts Consumer's Experience.
Description
Technical field
The present invention relates to waveform operation field, more particularly to the operating method and dress of a kind of Pan and Zoom logical waveform
Put.
Background technology
Logical waveform is on the display apparatus（Computer application program, logic scope etc.）It is directed to waveform translation（Move to left
Or move to right）, waveform scaling（Such as the scaling of time-axis direction）Deng operation.On different display devices, the method for operation is each not
Equally.The frequency that these basic operations are used when logical waveform is checked is very high, therefore good operating method can improve interpreting blueprints
Efficiency.
The technical scheme of prior art：By taking application program on PC as an example, common way is directed to different operations, carries
For different buttons, using separate mode of operation.It is " to right translation as provided " amplification " button for " waveform amplification "
Waveform " provides " moving to right " button etc..
Inventor realize it is of the invention during find, the shortcoming of prior art at least includes：
For " scaling " operation, due to using push-button design, it has not been convenient to specify the datum mark of scaling.Generally acquiescence uses ripple
Point, zooms in and out on the basis of the center of shape viewing area.When wanting to certain a part of " amplification " of waveform to consult details, generally
Needs will first think that the part translation of scaling, to viewing area center, then clicks on " amplification " button and is amplified.This operating method
Step is bothered, not enough intuitively.
For " translation " operation, the step-length of translation is generally fixed every time, the translation of big distance, it usually needs repeatedly click on
" moving to right " or " moving to left " button.Troublesome poeration, and waveform translation positioning is inaccurate.
The content of the invention
It is an object of the present invention to provide the operating method and device of a kind of Pan and Zoom logical waveform, to use one
Intuitive way is planted, the operation such as Pan and Zoom of logical waveform is efficiently carried out.
To achieve these objectives, on the one hand, the embodiment of the invention provides a kind of operation side of Pan and Zoom logical waveform
Method, methods described includes：
In logical waveform viewing area, current cursor is pointed to by operation associated interest by moving coordinate location equipment
Point, it is described operation associated including translation and/or zoom operations；
Using coordinate positioning apparatus triggering one indicative handle icon of display, in the indicative handle icon
Heart coordinate points are the operation associated point of interest, and the indicative handle icon has and the operation associated corresponding finger
To multiple operation instructions of different directions；
Keep the coordinate positioning apparatus to be in operation triggering state, moved towards different directions according to the multiple operation instruction
The coordinate positioning apparatus are moved to carry out translation and/or zoom operations to the logical waveform.
To achieve these objectives, on the other hand, the embodiment of the invention provides a kind of operation of Pan and Zoom logical waveform
Device, described device includes：Waveform processing equipment and coordinate positioning apparatus, wherein the waveform processing equipment includes：
One display unit, for showing a logical waveform viewing area and logical waveform；And
One processing unit, for according to user to the moving operation of coordinate positioning apparatus, on the display unit by current light
Mark points to operation associated point of interest, described operation associated including translation and/or zoom operations；It is fixed to coordinate according to user
The trigger action of position equipment, shows an indicative handle icon, the center of the indicative handle icon on the display unit
Coordinate points are the operation associated point of interest, and the indicative handle icon has and the operation associated corresponding sensing
Multiple operation instructions of different directions；And when user keeps the coordinate positioning apparatus to be in operation triggering state, and foundation
When the multiple operation instruction is towards the different directions movement coordinate positioning apparatus, translation is carried out to the logical waveform
And/or zoom operations.
The beneficial effect of above-mentioned technical proposal provided in an embodiment of the present invention is, the program make the translation of logical waveform and
Zoom operations more facilitate and directly perceived, lift Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description does one and simply introduces, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is a kind of allomeric function block diagram of the operating method of Pan and Zoom logical waveform of the embodiment of the present invention；
Fig. 2 is the exemplary plot that the embodiment of the present invention carries out logical waveform operation on PC；
Fig. 2 a are three kinds of modified example figures of the indicative handle icon of the embodiment of the present invention；
Fig. 3 is a kind of functional block diagram of the operation device of Pan and Zoom logical waveform of the embodiment of the present invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is a kind of allomeric function block diagram of the operating method of Pan and Zoom logical waveform of the embodiment of the present invention.Such as
Shown in Fig. 1, the method comprises the following steps：
110th, in logical waveform viewing area, current cursor is pointed to by moving coordinate location equipment operation associated emerging
It is interesting, it is described operation associated including translation and/or zoom operations；
120th, using coordinate positioning apparatus triggering one indicative handle icon of display, the indicative handle icon
Centre coordinate point be the operation associated point of interest, the indicative handle icon has operation associated corresponding with described
The multiple operation instructions being pointed in different directions；
130th, the coordinate positioning apparatus are kept to be in operation triggering state, according to the multiple operation instruction towards not Tongfang
Translation and/or zoom operations are carried out to the logical waveform to the movement coordinate positioning apparatus.
In the present embodiment, logical waveform refers to：It is used to the waveform of the digital clocking signal for representing 0 or 1.Logical waveform
X-axis direction is the time, and y-axis direction is 0 or 1 numerical value.Coordinate positioning apparatus refer to：Coordinate can be carried out and determined on the display apparatus
The equipment of position.Such as mouse, trace ball, touch pad etc..The implementation of present invention method needs to meet following prerequisite：Tool
There are coordinate positioning apparatus（Such as touch pad, mouse, trace ball etc.）.
Alternatively, in one embodiment, it is described with the operation associated corresponding multiple operation instructions being pointed in different directions
Including：Sensing level translation to the left to the left indicates, point to level translation to the right to the right indicates, point to vertically to
On waveform amplifieroperation indicate and point to waveform reduction operation straight down to indicate.Different zones are put on by light（On
Lower left and right）Display content associate different operations so that operation of the user by location equipment to waveform is more directly perceived, be easy to
Understand.
Alternatively, sensing waveform amplifieroperation straight up indicates that magnifying glass icon, the finger can be rendered as
Indicate that type minifier icon can be rendered as to waveform reduction operation straight down, but the embodiment of the present invention is not limited, should
Indicative handle icon can also be that other have the icon of equivalent or similar instruction function, go out as shown in Figure 2 a.Alternatively
Ground, the operation instruction pointed to straight up can also be indicated for waveform reduces.
Specifically, patrolled described the coordinate positioning apparatus are moved towards different directions according to the multiple operation instruction
Volume waveform is carried out in translation and/or zoom operations, and the distance of the logical waveform translation is moved with the coordinate positioning apparatus
Dynamic distance is into positive correlation.
Specifically, patrolled described the coordinate positioning apparatus are moved towards different directions according to the multiple operation instruction
Volume waveform translated and/or zoom operations in, the zoom operations are with the centre coordinate point of the indicative handle icon
X-axis value on the basis of point, carry out the scaling on time shaft, the multiple of scaling is moved up or down with the coordinate positioning apparatus
（Along the y-axis direction）Distance into positive correlation.
In the present embodiment, positive correlation refers to：The variation direction of two variables is identical, a variable it is descending or by it is small to
During big change, another variable is also descending or ascending change.The positive correlation includes linear direct proportion, positive exponent phase
The relation such as pass or other function positive correlations.It is common to have following positive correlation function expression（Wherein, y and x are variables, and a, b are to be
Number；Specifically, for present example, x is the distance of coordinate positioning apparatus movement, and y is distance or the contracting of logical waveform movement
The multiple put）：
Function（1）：y=ax+b （a>0）；
Function（2）：y=xa(x>0,a>0)；
Function（3）：y=ax(a>1)；
Function（4）：y=logax(a>1,x>0)。
Present example is not limited, and the functional relation can also be other similar positive correlation functions.According to implementation
Specific requirement, suitable positive correlation function and its coefficient can be selected, with adjust coordinate positioning apparatus move when correspondence patrol
Collect waveform change（Mobile or scaling）Sensation, improve Consumer's Experience.
Further, method shown in Fig. 1 also includes step：When division operation triggering state is solved, the indicative operation diagram
Mark disappears.
Alternatively, it is described to be included using coordinate positioning apparatus triggering one indicative handle icon of display：By pressing
Lower mouse button, long click touch pad keep corresponding with trace ball keyboard to press carrying triggering display one
Exemplary operation icon.The solution division operation triggering state includes：Unclamp mouse button, finger leave touch pad or unclamp keyboard by
Key.
Below as one example and with reference to the exemplary plot of Fig. 2, method shown in Fig. 1 is described in more detail.Such as Fig. 2 institutes
Show, in certain PC application program as an example, using mouse as coordinate positioning apparatus, when left mouse button is pressed, show
Operation indicating icon shown in diagram 2.Keep left mouse button to press, and towards 4 direction movement mouses, logical waveform can be carried out
Move left and right and time shaft zoom operations.
With reference to Fig. 2, the method to Fig. 1 is further described below：
Step（1）In logical waveform viewing area, current cursor is pointed to by moving coordinate location equipment operation associated
Point of interest（Such as the datum mark for translating or scale）.
Step（2）One display of indicative handle icon is triggered by certain mode, the centre coordinate point of icon is pass
Join the point of interest of operation.As shown in Fig. 2 the icon is with step（1）Centered on selected point of interest, upper and lower 4 directions to the left and right
4 kinds of diagrams are presented respectively（Such as：Left arrow being shown to the left, right arrow being shown to the right, magnifying glass is shown upwards, display downwards is reduced
Mirror）.Triggering mode can freely be defined according to the characteristics of coordinate positioning apparatus, such as press mouse button, long click touch pad or
Keyboard is kept by inferior.This state is referred to as operating triggering state, in this case, icon institute can be carried out to logical waveform
The associative operation for showing.
Step（3）Keeping（2）Under described operation triggering state, by towards different direction moving coordinate location equipments
（Now, indicative handle icon can also be moved）, carry out 4 kinds of basic waveform operations（Or combination operation）.Explain in detail as
Under：
To the right or when being moved to the left, waveform is translated to the left or to the right therewith by synchronous.The distance and positioning of waveform movement set
For mobile distance into positive correlation, when the center of indicative icon（That is the point of interest of waveform）Move to outside waveform visual range
When, waveform will no longer be moved.
When moving up or down, waveform amplifies synchronous and diminution.Waveform scaling is with changing coordinates x-axis value（Prompting
The x-axis value of icon central point）On the basis of point, carry out the scaling on time shaft.The multiple of scaling is with location equipment up or down
Mobile distance is into positive correlation, and the degree of the bigger waveform scaling of amplitude is bigger.
Combination operation.In the case where operation triggering state is kept, change the direction of location equipment movement, you can change behaviour therewith
Make.Scaled after such as translating, translation etc. after scaling.
Step（4）When the condition for keeping operation triggering state no longer meets（Such as unclamp mouse button, finger and leave touch pad
Or unclamp keyboard）, then immediately exiting from operating triggering state, suggestive icon disappears therewith, reverts to normal display
Icon.Now, moving coordinate location equipment does not possess step（3）Described function.Using the implementation difference of different positioning
Only in trigger condition.
The condition of the characteristics of for different coordinate positioning apparatus, triggering and releasing waveform operation state can be defined flexibly,
To meet reasonability and high efficiency that the coordinate positioning apparatus are used.Mouse is such as directed to, can be used and be pressed mouse button（It is left and right or
Middle key）Triggered, unclamp mouse button and released；For touch pad, using " length is pressed " triggering, unclamp finger and released；
For trace ball, can aid in being pressed using keyboard and being unclamped triggered respectively and released.
The beneficial effect that the technical scheme of the embodiment of the present invention is brought is：The program grasps the Pan and Zoom of logical waveform
Make more to facilitate and directly perceived, lift Consumer's Experience.
Fig. 3 is a kind of functional block diagram of the operation device of Pan and Zoom logical waveform of the embodiment of the present invention.Such as Fig. 3 institutes
Show, described device 300 includes：Waveform processing equipment 310 and coordinate positioning apparatus 320, wherein the waveform processing equipment 310 is wrapped
Include：
One display unit 311, for showing a logical waveform viewing area and logical waveform；And
One processing unit 322, to the moving operation of coordinate positioning apparatus, incites somebody to action for according to user on display unit 311
Current cursor points to operation associated point of interest, described operation associated including translation and/or zoom operations；According to user couple
The trigger action of coordinate positioning apparatus, shows an indicative handle icon, the indicative handle icon on the display unit
Centre coordinate point be the operation associated point of interest, the indicative handle icon has operation associated corresponding with described
The multiple operation instructions being pointed in different directions；And when user keeps the coordinate positioning apparatus to be in operation triggering state,
And during according to the multiple operation instruction towards the different directions movement coordinate positioning apparatus, the logical waveform is translated
Operation and/or zoom operations.
Alternatively, it is described to include with the operation associated corresponding multiple operation instructions being pointed in different directions：Sensing level
Translation to the left to the left is indicated, points to the level instruction of translation to the right, sensing to the right waveform amplification straight up
Operation instruction and the waveform reduction operation pointed to straight down are indicated.
Specifically, the distance that the distance of logical waveform translation is moved with the coordinate positioning apparatus is into positive correlation；With/
Or, the zoom operations are the points on the basis of the x-axis value of the centre coordinate point of the indicative handle icon, carry out on time shaft
Scaling, the distance that the multiple of scaling is moved up or down with location equipment is into positive correlation.
In the present embodiment, positive correlation refers to：The variation direction of two variables is identical, a variable it is descending or by it is small to
During big change, another variable is also descending or ascending change.The positive correlation includes linear direct proportion, positive exponent phase
The relation such as pass or other function positive correlations.It is common to have following positive correlation function expression（Wherein, y and x are variables, and a, b are to be
Number；Specifically, for present example, x is the distance of coordinate positioning apparatus movement, and y is distance or the contracting of logical waveform movement
The multiple put）：
Function（1）：y=ax+b（a>0）；
Function（2）：y=xa(x>0,a>0)；
Function（3）：y=ax(a>1)；
Function（4）：y=logax(a>1,x>0)。
Present example is not limited, and the functional relation can also be other similar positive correlation functions.According to implementation
Specific requirement, suitable positive correlation function and its coefficient can be selected, with adjust coordinate positioning apparatus move when correspondence patrol
Collect waveform change（Mobile or scaling）Sensation, improve Consumer's Experience.
Further, the processing unit 312, can be also used for releasing the operation triggering to the location equipment as user
During state so that the indicative handle icon disappears.
Alternatively, the coordinate positioning apparatus include：Mouse, trace ball or touch pad.
Alternatively, it is described according to user to the trigger action of coordinate positioning apparatus, a prompting is shown on the display unit
Property handle icon includes：Mouse button, long click touch pad are pressed according to user or keyboard corresponding with the trace ball is kept
Button is pressed to trigger one indicative handle icon of display；The operation triggering state bag released to the location equipment
Include：User unclamps mouse button, finger and leaves touch pad or unclamp keyboard.
The beneficial effect that the operation device of the embodiment of the present invention is brought is：Can operate the Pan and Zoom of logical waveform
More facilitate and directly perceived, lift Consumer's Experience.
Above example is only used to illustrate the technical scheme of the embodiment of the present invention, rather than its limitations；Although with reference to foregoing
Embodiment has been described in detail to the embodiment of the present invention, it will be understood by those within the art that：It still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent is carried out to which part technical characteristic；And
These modifications are replaced, and do not make the essence of essence disengaging each embodiment technical scheme of the embodiment of the present invention of appropriate technical solution
God and scope.
Claims (15)
1. a kind of operating method of Pan and Zoom logical waveform, it is characterised in that methods described includes：
In logical waveform viewing area, current cursor is pointed to by operation associated point of interest, institute by moving coordinate location equipment
State operation associated including translation and/or zoom operations；
Using coordinate positioning apparatus triggering one indicative handle icon of display, the center of the indicative handle icon is sat
Punctuate is the operation associated point of interest, the indicative handle icon have with the operation associated corresponding sensing not
Equidirectional multiple operation instructions；
Keep the coordinate positioning apparatus to be in operation triggering state, institute is moved towards different directions according to the multiple operation instruction
Coordinate positioning apparatus are stated to carry out translation and/or zoom operations to the logical waveform.
2. method according to claim 1, it is characterised in that described corresponding to be pointed in different directions with operation associated
Multiple operation instructions include：
Sensing level translation to the left to the left indicates, point to level translation to the right to the right indicates, point to vertically to
On waveform amplifieroperation indicate and point to waveform reduction operation straight down to indicate.
3. method according to claim 2, it is characterised in that sensing waveform amplifieroperation straight up indicate be in
It is now magnifying glass icon, sensing waveform reduction operation straight down indicates to be rendered as type minifier icon.
4. method according to claim 1, it is characterised in that moved towards different directions according to the multiple operation instruction
The coordinate positioning apparatus come in carrying out translation and/or zoom operations to the logical waveform, the logical waveform translation
The distance that is moved with the coordinate positioning apparatus of distance into positive correlation.
5. method according to claim 1, it is characterised in that moved towards different directions according to the multiple operation instruction
The coordinate positioning apparatus come the logical waveform is translated and/or zoom operations in, the zoom operations are with described
Point on the basis of the x-axis value of the centre coordinate point of indicative handle icon, carries out the scaling on time shaft, the multiple of scaling with it is described
The distance that coordinate positioning apparatus are moved up or down is into positive correlation.
6. method according to claim 1, it is characterised in that methods described also includes：When division operation triggering state is solved,
The indicative handle icon disappears.
7. the method according to claim 1 or 6, it is characterised in that the coordinate positioning apparatus include：Mouse, trace ball
Or touch pad.
8. method according to claim 7, it is characterised in that described using coordinate positioning apparatus triggering display one
Indicative handle icon includes：By pressing mouse button, long click touch pad or keeping keyboard corresponding with the trace ball
Button is pressed to trigger one indicative handle icon of display.
9. method according to claim 6, it is characterised in that the solution division operation triggering state includes：Release mouse button,
Finger leaves touch pad or unclamps keyboard.
10. a kind of operation device of Pan and Zoom logical waveform, it is characterised in that described device includes：Waveform processing equipment
And coordinate positioning apparatus, wherein the waveform processing equipment includes：
One display unit, for showing a logical waveform viewing area and logical waveform；And
One processing unit, to the moving operation of coordinate positioning apparatus, on the display unit refers to current cursor for according to user
It is described operation associated including translation and/or zoom operations to operation associated point of interest；Coordinate setting is set according to user
Standby trigger action, shows an indicative handle icon, the centre coordinate of the indicative handle icon on the display unit
Point is the operation associated point of interest, and the indicative handle icon has different from the operation associated corresponding sensing
Multiple operation instructions in direction；And when user keeps the coordinate positioning apparatus to be in operation triggering state, and according to described
Multiple operation instructions towards different directions move the coordinate positioning apparatus when, the logical waveform is carried out translation and/or
Zoom operations.
11. devices according to claim 10, it is characterised in that described to be pointed in different directions with operation associated corresponding
Multiple operation instructions include：
Sensing level translation to the left to the left indicates, point to level translation to the right to the right indicates, point to vertically to
On waveform amplifieroperation indicate and point to waveform reduction operation straight down to indicate.
12. devices according to claim 10, it is characterised in that
The distance that the distance of logical waveform translation is moved with the coordinate positioning apparatus is into positive correlation；
And/or, the zoom operations are the points on the basis of the x-axis value of the centre coordinate point of the indicative handle icon, are carried out
Scaling on time shaft, the distance that the multiple of scaling is moved up or down with location equipment is into positive correlation.
13. devices according to claim 10, it is characterised in that the processing unit, are additionally operable to be released to institute as user
When stating the operation triggering state of location equipment so that the indicative handle icon disappears.
14. devices according to claim 10, it is characterised in that the coordinate positioning apparatus include：Mouse, trace ball or
Person's touch pad.
15. devices according to claim 13, it is characterised in that the triggering according to user to coordinate positioning apparatus is grasped
Make, show that an indicative handle icon includes on the display unit：According to user press mouse button, long click touch pad or
Keep keyboard corresponding with trace ball to press to trigger one indicative handle icon of display；The releasing is to described fixed
The operation triggering state of position equipment includes：User unclamps mouse button, finger and leaves touch pad or unclamp keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210152988.4A CN103425398B (en) | 2012-05-16 | 2012-05-16 | The operating method and device of a kind of Pan and Zoom logical waveform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210152988.4A CN103425398B (en) | 2012-05-16 | 2012-05-16 | The operating method and device of a kind of Pan and Zoom logical waveform |
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| CN103425398A CN103425398A (en) | 2013-12-04 |
| CN103425398B true CN103425398B (en) | 2017-06-27 |
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| CN201210152988.4A Expired - Fee Related CN103425398B (en) | 2012-05-16 | 2012-05-16 | The operating method and device of a kind of Pan and Zoom logical waveform |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809808B (en) * | 2014-01-25 | 2016-10-05 | 深圳麦科信仪器有限公司 | A kind of method and device of the waveform translation based on touch-screen |
| CN103913616A (en) * | 2014-03-26 | 2014-07-09 | 深圳麦科信仪器有限公司 | Method for adjusting vertical system and horizontal system of oscilloscope based on touch screen |
| CN105092919B (en) * | 2014-05-04 | 2017-11-10 | 固纬电子实业股份有限公司 | The gear switch method of touch measuring instrument |
| CN106484299A (en) * | 2016-10-17 | 2017-03-08 | 诺仪器（中国）有限公司 | Instrument and meter dynamic image amplifies inspection method, device and instrument and meter |
| CN108318723B (en) * | 2017-01-17 | 2022-03-29 | 普源精电科技股份有限公司 | Waveform scaling method, device and system |
| CN109144387B (en) * | 2018-08-01 | 2021-03-30 | 深圳市鼎阳科技股份有限公司 | Cursor touch method, cursor touch device and digital oscilloscope |
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| CN1549998A (en) * | 2001-09-04 | 2004-11-24 | ��˹��ŵ�� | Zooming and panning content on a display screen |
| CN101076774A (en) * | 2004-02-23 | 2007-11-21 | 希尔克瑞斯特实验室公司 | Method of real-time incremental zooming |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8797271B2 (en) * | 2008-02-27 | 2014-08-05 | Microsoft Corporation | Input aggregation for a multi-touch device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549998A (en) * | 2001-09-04 | 2004-11-24 | ��˹��ŵ�� | Zooming and panning content on a display screen |
| CN101076774A (en) * | 2004-02-23 | 2007-11-21 | 希尔克瑞斯特实验室公司 | Method of real-time incremental zooming |
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