CN103440097A - Method and terminal for controlling touch pad cursor to slide on the basis of pressure - Google Patents
Method and terminal for controlling touch pad cursor to slide on the basis of pressure Download PDFInfo
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- CN103440097A CN103440097A CN2013103217858A CN201310321785A CN103440097A CN 103440097 A CN103440097 A CN 103440097A CN 2013103217858 A CN2013103217858 A CN 2013103217858A CN 201310321785 A CN201310321785 A CN 201310321785A CN 103440097 A CN103440097 A CN 103440097A
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Abstract
The invention discloses a method and a terminal for controlling a touch pad cursor to slide on the basis of pressure. The method includes the following steps: (A) the position coordinates of an sliding event on a touch pad are acquired, and an pressure index on each position coordinate is detected; (B) after analog-to-digital conversion and signal processing performed on the pressure indexes, pressure values are generated, and are matched with preset pressure levels, and the sliding coefficients of the matched pressure levels are outputted; (C) according to the sliding coefficients, the moving speed of the touch pad cursor on a display screen is controlled, and thereby the scrolling speed of the display screen is indirectly controlled. The invention is not limited by the sizes of touch pads, moreover, pressure is controllable, and operation is convenient for users.
Description
Technical field
The present invention relates to the touchpad technology field, particularly a kind of method and terminal of controlling the slip of touch pad mouse based on pressure.
Background technology
The functions such as the at present application of touch pad is more and more extensive, and different touch gestures can be realized as moved up and down, page turning, expansion are dwindled.For example, when the upper moveable finger of the touch pad (also being Petting Area) of notebook computer, at the relative position of display screen, can be shown as mouse.Finger clicks on touch pad/and while moving, mouse is also correspondingly carried out click/move operation; Therefore this mouse is also referred to as the touch pad mouse.At browsing page or document, or while needing fast browsing, often use inertia roll screen function.The inertia roll screen is finger paddling on touch pad, the corresponding slip of the content shown on screen, and stop also can simulating the lasting segment distance that slides of inertia effect after finger leaves touch pad after.Although the inertia roll screen can be accelerated the rolling speed of the page on display screen, but be based on the current restriction to the touch pad size, when a lot of large webpage of user's browsing content amount or document, usually need on touch pad, repeatedly slide to arrive desired location, complex operation and more time-consuming, make troubles to user's operation and affected user's Experience Degree.
Thereby prior art need to improve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of method and terminal and device of controlling the slip of touch pad mouse based on pressure, to solve prior art due to the restriction of touch pad size, realize that diagonal angle slides or slides up and down and need to repeatedly slide and lose time, and affects the problem that the user experiences.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of method of controlling the slip of touch pad mouse based on pressure, it comprises:
A, obtain the position coordinates of slip event on touch pad, detect the pressure index on each position coordinates;
B, described pressure index is carried out after analog to digital conversion and signal are processed generating force value, described force value and default pressure rating are mated, and exported the ratio of slip of the pressure rating be complementary;
C, control the translational speed of touch pad mouse on display screen according to described ratio of slip, adjust the speed of screen scroll.
Describedly based on pressure, control in the method that the touch pad mouse slides, in described steps A, all pixels of slip event are carried out to periodic sampling and obtain position coordinates.
In described method of sliding based on pressure control touch pad mouse, in described step B, described pressure rating comprises:
The first pressure rating, its range of pressure values is for being less than the first preset pressure value, corresponding the first ratio of slip;
The second pressure rating, its range of pressure values is for being more than or equal to the first preset pressure value, and is less than the second preset pressure value, corresponding the second ratio of slip;
The 3rd pressure rating, its range of pressure values is for being more than or equal to the second preset pressure value, and is less than the 3rd preset pressure value, corresponding the 3rd ratio of slip;
The 4th pressure rating, its range of pressure values is for being more than or equal to the 3rd preset pressure value, and is less than or equal to the 4th preset pressure value, corresponding the 4th ratio of slip;
Wherein, the first preset pressure value<second preset pressure value<the 3rd preset pressure value<the 4th preset pressure value, the first ratio of slip<second ratio of slip<the 3rd ratio of slip<the 4th ratio of slip.
In described method of sliding based on pressure control touch pad mouse, described step B specifically comprises:
B1, described pressure index is carried out to analog to digital conversion generating digital signal, digital signal is carried out generating force value after computing;
B2, described force value and the first preset pressure value are compared: if force value is greater than the first preset pressure value, perform step B3; If equal, judge that this force value belongs to the second pressure rating, exports the second ratio of slip; If be less than, judge that this force value belongs to the first pressure rating, exports the first ratio of slip;
B3, described force value and the second preset pressure value are compared: if force value is greater than the second preset pressure value, perform step B4; If equal, judge that this force value belongs to the 3rd pressure rating, exports the 3rd ratio of slip; If be less than, judge that this force value belongs to the second pressure rating, exports the second ratio of slip;
B4, described force value and the 3rd preset pressure value are compared: if force value is greater than the 3rd preset pressure value, perform step B5; If equal, judge that this force value belongs to the 4th pressure rating, exports the 4th ratio of slip; If be less than, judge that this force value belongs to the 3rd pressure rating, exports the 3rd ratio of slip;
B5, judge whether described force value is less than or equal to the 4th preset pressure value: when being less than or equal to, judge that this force value belongs to the 4th pressure rating, exports the 4th ratio of slip.
In described method of sliding based on pressure control touch pad mouse, after described step B5, also comprise:
B6, judge whether the ratio of slip of current output is less than prime slip average: if export previous ratio of slip; Otherwise, export current ratio of slip;
Described prime slip average is the average of N ratio of slip of output successively before current ratio of slip, and N is positive integer.
In described method of sliding based on pressure control touch pad mouse, after described step C, also comprise:
D, while carrying out click event on touch pad, obtain the pixel coordinate of click event, ratio of slip being made zero and control screen stops rolling, and shows the page that comprises this pixel coordinate.
A kind of terminal of controlling the slip of touch pad mouse based on pressure, comprise touch pad, and it also comprises:
Acquisition module, for obtaining the position coordinates of slip event;
Touch pad IC, for detection of the pressure index on each position coordinates, convert described pressure index to force value, by described force value and default pressure rating mated, and the ratio of slip of the pressure rating that is complementary of output;
Touch pad mouse-driven module, for control the translational speed of touch pad mouse on display screen according to described ratio of slip, adjust the speed of screen scroll.
In described terminal, described touch pad IC comprises:
Pressure transducer, for detection of the pressure index on each position coordinates;
Data processing unit, for described pressure index being carried out to analog to digital conversion generating digital signal, carry out generating force value after computing to digital signal;
The pressure rating control module, for division scope and the corresponding ratio of slip thereof that arranges and store pressure rating;
Comparer, compare, export the ratio of slip of the pressure rating under this force value for the division scope by described force value and pressure rating.
In described terminal, described touch pad IC also comprises:
Whether judging unit, be less than prime slip average for judging current ratio of slip: if export previous ratio of slip; Otherwise, export current ratio of slip;
Described data processing unit is also for calculating the average of N the ratio of slip of exporting successively before current ratio of slip.
In described terminal, also comprise:
Slide and stop unit, during for execution click event on touch pad, obtain the pixel coordinate of click event, the ratio of slip of comparer output is made zero;
Described touch pad mouse-driven module is also controlled screen when at ratio of slip being zero and is stopped rolling, and shows the page that comprises this pixel coordinate.
Compared to prior art, method and the terminal of controlling the slip of touch pad mouse based on pressure provided by the invention, by obtaining the position coordinates of slip event on touch pad, and the pressure index detected on position coordinates is carried out to analog to digital conversion and signal processing, generate force value and mated, control according to the ratio of slip of the pressure rating be complementary the translational speed of touch pad mouse on display screen, the speed of adjustment screen scroll with default pressure rating; This according to finger pressure during paddling control the translational speed of touch pad mouse on display screen, thereby the mode of indirectly controlling the roll screen speed of display screen can not be subject to the restriction of touch pad size, and the pressure size is controlled, thereby indirectly control rolling speed, user-friendly.
The accompanying drawing explanation
Fig. 1 is the method flow diagram of controlling the slip of touch pad mouse based on pressure provided by the invention.
Fig. 2 is the structured flowchart of controlling the terminal of touch pad mouse slip based on pressure provided by the invention.
Embodiment
The invention provides a kind of method and terminal of controlling the slip of touch pad mouse based on pressure, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Provided by the inventionly based on pressure, control method that the touch pad mouse slides mainly according to finger dynamics during paddling on touch pad, it is the translational speed that the size of pressure is correspondingly controlled the touch pad mouse, thereby indirectly control the speed of roll screen, realize quick roll screen, make the motion track of touch pad mouse not be subject to the restriction of touch pad size.Method of sliding based on pressure control touch pad mouse provided by the invention is applicable to any terminal with touch pad, as notebook computer.The touch pad that the present embodiment provides also can be arranged on intelligent remote controller, for controlling the roll screen speed of TV screen.The Dongle receiver is inserted on televisor or computer, and the signal that intelligent remote controller sends is transferred to televisor after being received by the Dongle receiver or computer is realized corresponding control.It is example that the intelligent remote controller of take is controlled televisor, touch pad can be arranged on to the zone line of intelligent remote controller, and button is arranged on to the touch pad both sides.When finger moves on touch pad, the signal that intelligent remote controller sends transfers in TV, correspondingly demonstrates the mobile status of mouse on the display screen of televisor.Described mouse also is the touch pad mouse.Should be understood that, what the present invention mainly set forth is according to the corresponding ratio of slip of pressure size output, is controlled the translational speed of touch pad mouse on tv display screen by ratio of slip, thereby realizes the adjustment of roll screen speed.And between intelligent remote controller and televisor, how receiving and transmitting signal is prior art, at this, be not described further.
Refer to Fig. 1, it is the method flow diagram of controlling the slip of touch pad mouse based on pressure provided by the invention; Described method comprises:
S100, obtain the position coordinates of slip event on touch pad, detect the pressure index on each position coordinates;
S200, described pressure index is carried out after analog to digital conversion and signal are processed generating force value, described force value and default pressure rating are mated, and exported the ratio of slip of the pressure rating be complementary;
S300, control the translational speed of touch pad mouse on display screen according to described ratio of slip, adjust the speed of screen scroll.
Described slip event refers to the operation of finger paddling one segment distance on touch pad.Touch pad judges the paddling track by the coordinate that detects pixel in this segment distance, and that identification realizes is upper and lower, left and right or diagonal angle move.The present embodiment is used as the control criterion of roll screen speed to detect pressure index on each pixel, pixel based in this segment distance is more, in order to reduce computing, improve reaction velocity, in described step S100, all pixels of slip event are carried out to periodic sampling and obtain position coordinates.That is to say that take every M(M is positive integer to all pixel coordinates on this segment distance) mode of individual point chooses a pixel coordinate, and the pixel coordinate that these are chosen combines according to the order of sequence and has just formed the position coordinates of slip event.
Touch pad often means the position of pixel, A(x, y with X-axis and Y-axis) can think the coordinate of a pixel.The present invention utilizes the Z axis also be not used in prior art to detect the pressure index on this pixel as pressure line in touch pad, can respond to by pressure transducer the stressed degree of this point, using the Z axis detected pressures is prior art, at this, is not described further.
The present invention carries out grade classification by the pressure index detected, the corresponding ratio of slip of the pressure in certain limit, and this ratio of slip has determined the speed of roll screen.Classification and the set-up mode of described pressure rating are as follows:
The first pressure rating, its range of pressure values is for being less than the first preset pressure value, corresponding the first ratio of slip;
The second pressure rating, its range of pressure values is for being more than or equal to the first preset pressure value, and is less than the second preset pressure value, corresponding the second ratio of slip;
The 3rd pressure rating, its range of pressure values is for being more than or equal to the second preset pressure value, and is less than the 3rd preset pressure value, corresponding the 3rd ratio of slip;
The 4th pressure rating, its range of pressure values is for being more than or equal to the 3rd preset pressure value, and is less than or equal to the 4th preset pressure value, corresponding the 4th ratio of slip;
Wherein, the first preset pressure value<second preset pressure value<the 3rd preset pressure value<the 4th preset pressure value, the first ratio of slip<second ratio of slip<the 3rd ratio of slip<the 4th ratio of slip.
If pressure is less, its force value is less, and corresponding ratio of slip is less, and roll screen speed is also slower.The maximal rate that the 4th ratio of slip in the present embodiment is roll screen, if occur the 4th ratio of slip 3 times, can directly be rolled to the bottom of the page.The large I of the 4th ratio of slip is arranged by the user or manufacturer arranges, and to accelerating roll screen speed, makes the user can navigate to very soon the end.
The pressure index detected could mated with above-mentioned pressure rating after conversion, and described step S200 specifically comprises:
Step 204, described force value and the 3rd preset pressure value are compared: if force value is greater than the 3rd preset pressure value, perform step step 205; If equal, judge that this force value belongs to the 4th pressure rating, exports the 4th ratio of slip; If be less than, judge that this force value belongs to the 3rd pressure rating, exports the 3rd ratio of slip;
During based on the finger paddling, pressure may constantly change, in order to accelerate above-mentioned matching process, the present embodiment is divided pressure rating by the first preset pressure value, the second preset pressure value, the 3rd preset pressure value, the 4th these endpoint values of preset pressure value are set, and can reduce the impact of pressure slight change on roll screen speed.The number of pressure rating and its scope are set and can be adjusted according to actual conditions or customer requirements, and the present invention is not construed as limiting this.
Ratio of slip based on each output may vary, such roll screen speed can be sometimes fast and sometimes slow, seem that rolling effect is discontinuous and bring poor visual effect to the user, in order to make, the roll screen effect is relatively more continuous and velocity variations is less, after described step 205, also comprise step 206: whether the ratio of slip that judges current output is less than prime slip average: if export previous ratio of slip; Otherwise, export current ratio of slip.Described prime slip average is the average of N ratio of slip of output successively before current ratio of slip, and N is positive integer.So just can make roll screen speed from slow to fast or continue to change, avoid occurring that sometimes fast and sometimes slow situation affects visual effect.
After determining ratio of slip, control the speed of roll screen speed according to the size of this ratio of slip, ratio of slip is larger, roll screen speed is faster.First, second, third and fourth ratio of slip can be set and correspond to respectively 2 times of normal roll screen speed, 4 times, 8 times, 16 times.This multiple also can be set according to actual conditions or user's request for other are worth, and the present invention is not restricted this.
When the user determines the position that slides into needs, the present invention can also stop roll screen by clicking., after described step S300, also comprise step S400, while on touch pad, carrying out click event, obtain the pixel coordinate of click event, ratio of slip being made zero and control screen stops rolling, and shows the page that comprises this pixel coordinate.
The time length contacted with touch pad by finger can be distinguished clicking of execution or paddling, and while clicking, the time of contact is significantly smaller than the time of paddling, and this differentiation mode is prior art, at this, is not described further.The user click touch pad, mean that its expectation stops at once.Should be understood that, the position of pixel on touch pad is corresponding with the position of touch pad mouse on display screen.When the page shows, can centered by the X-axis of the pixel coordinate of this click event, half-and-half show by line,, on display screen, the touch pad mouse is in the middle of display screen; Also can take described X-axis as go up most separatrix or minimum separatrix as the page show, in like manner can obtain, the touch pad mouse at display screen topmost or bottom.
Control based on pressure the method that the touch pad mouse slides based on above-mentioned, the present invention is also corresponding to be provided a kind of and controls based on pressure the terminal that the touch pad mouse slides, as shown in Figure 2, it comprises touch pad (not shown), acquisition module 10, touch pad IC 20 and touch pad mouse-driven module 30, and described acquisition module 10, touch pad IC 20 and touch pad mouse-driven module 30 are connected successively.While carrying out the paddling operation on touch pad, acquisition module 10 obtains the position coordinates of slip event, the pressure index that touch pad IC 20 detects on each position coordinates, convert described pressure index to force value, by described force value and default pressure rating mated, and the ratio of slip of the pressure rating that is complementary of output; Touch pad mouse-driven module 30 is controlled the translational speed of touch pad mouse on display screen according to described ratio of slip, adjust the speed of screen scroll.When described terminal is intelligent remote controller, touch pad mouse-driven module 30 generates corresponding steering order according to described ratio of slip and sends in televisor, thereby controls the speed of screen scroll.In the specific implementation, also touch pad mouse-driven module 30 can be arranged in the Dongle receiver, the ratio of slip that receives the intelligent remote controller transmission is realized the control of roll screen speed.
Wherein, described touch pad IC 20 comprises pressure transducer 201, data processing unit 202, pressure rating control module 203 and comparer 204; Described pressure transducer 201, data processing unit 202, comparer 204 connect successively, and described pressure rating control module 203 connects comparer 204.Be transferred to data processing unit 202 after the pressure index that pressure transducer 201 detects on each position coordinates, 202 pairs of described pressure indexes of data processing unit carry out analog to digital conversion generating digital signal, and digital signal is carried out generating force value and transferring to comparer 204 after computing.Pressure rating control module 203 sets in advance and stores division scope and the corresponding ratio of slip thereof of pressure rating.Comparer 204 calls division scope and the ratio of slip of pressure rating in pressure rating control module 203, and the ratio of slip that division scope and force value is compared, exports to the pressure rating under this force value carries out the speed adjustment to touch pad mouse-driven module 30.
Discontinuous and bring poor visual effect to the user for fear of the sometimes fast and sometimes slow rolling effect that causes of roll screen speed, described touch pad IC 20 also comprises judging unit 205, it is connected with comparer 204 with data processing unit 202, whether be less than prime slip average for the current ratio of slip that judges comparer 204 outputs: if 205 previous ratio of slip of output of judging unit are to touch pad mouse-driven module 30; Otherwise, export current ratio of slip.Therefore, described data processing unit 202 is also for calculating before current ratio of slip successively the average of N ratio of slip of output and being transferred to judging unit 205 as Rule of judgment.
Can the Halfway Stopping roll screen when making to slide into the position needed, described terminal also comprises the termination unit 206 that slides, it is connected with comparer 204, during for execution click event on touch pad, obtain the pixel coordinate of click event, after comparer 204 output ratio of slip are made zero, be transferred to touch pad mouse-driven module 30.Described touch pad mouse-driven module 30 is controlled screen and is stopped rolling when ratio of slip is zero, shows the page that comprises this pixel coordinate.Described slip stops unit 206 and can also be connected with judging unit 205, and judging unit 205 output ratio of slip are made zero.
In the specific implementation, described touch pad can be also touch-screen, and described terminal is mobile phone with touch-screen, panel computer etc., so just can realize the quick sliding of touch-screen.In addition, also can control using the mobile phone with touch-screen, panel computer as intelligent remote controller the roll screen speed of televisor.
In sum, the present invention is processed by the pressure index detected on the position coordinates to slip event, generates the speed that force value and the ratio of slip of the pressure rating that default pressure rating is mated, basis is complementary are controlled screen scroll; This mode that pressure during paddling is controlled roll screen speed according to finger can not be subject to the restriction of touch pad size, and the pressure size is controlled, thereby indirectly controls rolling speed, user-friendly., before the output ratio of slip, also itself and prime slip average are compared simultaneously, make roll screen speed from slow to fast or continue to change, avoid occurring that sometimes fast and sometimes slow situation affects visual effect.In addition, when the present invention can also carry out click event on touch pad, obtain the pixel coordinate of click event, control screen and stop rolling and showing the page that comprises this pixel coordinate, facilitate the user to select the page needed, make roll screen control hommization more.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. control based on pressure the method that the touch pad mouse slides for one kind, it is characterized in that, comprising:
A, obtain the position coordinates of slip event on touch pad, detect the pressure index on each position coordinates;
B, described pressure index is carried out after analog to digital conversion and signal are processed generating force value, described force value and default pressure rating are mated, and exported the ratio of slip of the pressure rating be complementary;
C, control the translational speed of touch pad mouse on display screen according to described ratio of slip, adjust the speed of screen scroll.
2. according to claim 1ly based on pressure, control the method that the touch pad mouse slides, it is characterized in that, in described steps A, all pixels of slip event are carried out to periodic sampling and obtain position coordinates.
3. the method for controlling the slip of touch pad mouse based on pressure according to claim 1, is characterized in that, in described step B, described pressure rating comprises:
The first pressure rating, its range of pressure values is for being less than the first preset pressure value, corresponding the first ratio of slip;
The second pressure rating, its range of pressure values is for being more than or equal to the first preset pressure value, and is less than the second preset pressure value, corresponding the second ratio of slip;
The 3rd pressure rating, its range of pressure values is for being more than or equal to the second preset pressure value, and is less than the 3rd preset pressure value, corresponding the 3rd ratio of slip;
The 4th pressure rating, its range of pressure values is for being more than or equal to the 3rd preset pressure value, and is less than or equal to the 4th preset pressure value, corresponding the 4th ratio of slip;
Wherein, the first preset pressure value<second preset pressure value<the 3rd preset pressure value<the 4th preset pressure value, the first ratio of slip<second ratio of slip<the 3rd ratio of slip<the 4th ratio of slip.
4. the method for controlling the slip of touch pad mouse based on pressure according to claim 3, is characterized in that, described step B specifically comprises:
B1, described pressure index is carried out to analog to digital conversion generating digital signal, digital signal is carried out generating force value after computing;
B2, described force value and the first preset pressure value are compared: if force value is greater than the first preset pressure value, perform step B3; If equal, judge that this force value belongs to the second pressure rating, exports the second ratio of slip; If be less than, judge that this force value belongs to the first pressure rating, exports the first ratio of slip;
B3, described force value and the second preset pressure value are compared: if force value is greater than the second preset pressure value, perform step B4; If equal, judge that this force value belongs to the 3rd pressure rating, exports the 3rd ratio of slip; If be less than, judge that this force value belongs to the second pressure rating, exports the second ratio of slip;
B4, described force value and the 3rd preset pressure value are compared: if force value is greater than the 3rd preset pressure value, perform step B5; If equal, judge that this force value belongs to the 4th pressure rating, exports the 4th ratio of slip; If be less than, judge that this force value belongs to the 3rd pressure rating, exports the 3rd ratio of slip;
B5, judge whether described force value is less than or equal to the 4th preset pressure value: when being less than or equal to, judge that this force value belongs to the 4th pressure rating, exports the 4th ratio of slip.
5. the method for controlling the slip of touch pad mouse based on pressure according to claim 4, is characterized in that, after described step B5, also comprises:
B6, judge whether the ratio of slip of current output is less than prime slip average: if export previous ratio of slip; Otherwise, export current ratio of slip;
Described prime slip average is the average of N ratio of slip of output successively before current ratio of slip, and N is positive integer.
6. the method for controlling the slip of touch pad mouse based on pressure according to claim 5, is characterized in that, after described step C, also comprises:
D, while carrying out click event on touch pad, obtain the pixel coordinate of click event, ratio of slip being made zero and control screen stops rolling, and shows the page that comprises this pixel coordinate.
7. control based on pressure the terminal that the touch pad mouse slides for one kind, comprise touch pad, it is characterized in that, also comprise:
Acquisition module, for obtaining the position coordinates of slip event on touch pad;
Touch pad IC, for detection of the pressure index on each position coordinates, convert described pressure index to force value, by described force value and default pressure rating mated, and the ratio of slip of the pressure rating that is complementary of output;
Touch pad mouse-driven module, for control the translational speed of touch pad mouse on display screen according to described ratio of slip, adjust the speed of screen scroll.
8. terminal according to claim 7, is characterized in that, described touch pad IC comprises:
Pressure transducer, for detection of the pressure index on each position coordinates;
Data processing unit, for described pressure index being carried out to analog to digital conversion generating digital signal, carry out generating force value after computing to digital signal;
The pressure rating control module, for division scope and the corresponding ratio of slip thereof that arranges and store pressure rating;
Comparer, compare, export the ratio of slip of the pressure rating under this force value for the division scope by described force value and pressure rating.
9. terminal according to claim 8, is characterized in that, described touch pad IC also comprises:
Whether judging unit, be less than prime slip average for judging current ratio of slip: if export previous ratio of slip; Otherwise, export current ratio of slip;
Described data processing unit is also for calculating the average of N the ratio of slip of exporting successively before current ratio of slip.
10. terminal according to claim 8, is characterized in that, also comprises:
Slide and stop unit, during for execution click event on touch pad, obtain the pixel coordinate of click event, the ratio of slip of comparer output is made zero;
Described touch pad mouse-driven module is also controlled screen when at ratio of slip being zero and is stopped rolling, and shows the page that comprises this pixel coordinate.
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