Summary of the invention
The technical problem to be solved in the present invention provides a kind of input equipment and comprises the computing machine of this input equipment, this input equipment does not need the cooperation of mechanical key, just can finish conventional touch pad and mechanical key and cooperate the various functions of being finished, reduced the area that input equipment takies electronic equipment relatively, be user-friendly to.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, provide a kind of input equipment, comprising:
Touch pad is used to offer operating body and operates;
First sensing unit, be used to obtain the touching position information of described operating body on described touchpad surface, and export the coordinate information of described touching position information correspondence, described coordinate information is used for determining the position of the cursor of the pairing electronic equipment of described input equipment;
Second sensing unit is used to obtain the force value of described operating body on described touchpad surface, and exports described force value;
Processing unit is used in described force value during greater than a preset pressure threshold values, in the location triggered right button or the space bar function of the pairing cursor of described coordinate information.
Preferably, this input equipment also comprises:
Supporting construction, be used to support described touch pad, described first sensing unit and described second sensing unit, described supporting construction has first state under the effect of the external force by described touch pad transmission, under the effect that described external force is cancelled, has second state, described first state has primary importance, described second state has the second place, and wherein said primary importance is different with the described second place.
Preferably, described first sensing unit is specially:
Be positioned at the circuit board below the described touch pad, the upper surface of described circuit board is provided with electrode;
The coordinate figure and the changes in coordinates amount of touch point when described electrode is responded to described touchpad surface and touched, and export described coordinate figure and described changes in coordinates amount by described circuit board.
Preferably, described second sensing unit specifically comprises:
An one pressure keyswitch and a circuit, an end ground connection of described pressure keyswitch, the other end connects the input end of described circuit, and the output terminal of described circuit connects described processing unit;
The force value of vertical direction when described pressure keyswitch is responded to described touchpad surface pressurized, and according to the state of described force value control self, the open circuit of the described circuit of first State Control of described keyswitch, the closed-loop path of the described circuit of second State Control of described keyswitch, described circuit is exported described force value with the form of level signal.
Preferably, described touch pad comprises: a virtual region, described processing unit is used for determining that according to described coordinate information described touch location is positioned at described virtual region, and described force value triggers right button function or space bar function during greater than described preset pressure threshold values.
Preferably, described touch pad comprises: first virtual region and second virtual region, and described first virtual region and second virtual region are not overlapping,
The unit pack of handling is drawn together:
First processing unit is used for determining that according to described coordinate information described touch location is positioned at described first virtual region, and described force value is during greater than described preset pressure threshold values, in the location triggered right button function of the pairing cursor of described coordinate information;
Second processing unit is used for determining that according to described coordinate information described touch location is positioned at described second virtual region, and described force value is during greater than described preset pressure threshold values, in the described space bar function of the location triggered of the pairing cursor of described coordinate information.
Preferably, this input equipment also comprises:
The unit is set, is used to be provided with described preset pressure threshold values;
The described unit that is provided with comprises:
At least one is provided with the option unit, be used to provide pressure threshold value that option is set, each is described to be provided with the corresponding pressure threshold value scope of option, and wherein each is provided with all different other the pressure threshold value scopes that the option correspondence is set of the pressure threshold value scope of option correspondence.
On the other hand, also provide a kind of input equipment, comprising:
Touch pad has first virtual region and second virtual region, and described first virtual region and second virtual region are not overlapping, are used to offer operating body operate;
First sensing unit, be used to obtain the touching position information of described operating body on described touchpad surface, and export the coordinate information of described touching position information correspondence, described coordinate information is used for determining the position of the cursor of the pairing electronic equipment of described input equipment;
Second sensing unit is used to obtain the force value of described operating body on described touchpad surface, and exports described force value;
First processing unit is used for determining that according to described coordinate information described touch location is positioned at described first virtual region, and described force value is during greater than described preset pressure threshold values, in the location triggered right button function of the pairing cursor of described coordinate information;
Second processing unit is used for determining that according to described coordinate information described touch location is positioned at described second virtual region, and described force value is during greater than described preset pressure threshold values, in the location triggered space bar function of the pairing cursor of described coordinate information.
On the one hand, provide a kind of computing machine again, comprising:
Pedestal has an accommodation space; It is characterized in that, also comprise:
Input equipment is arranged in the described accommodation space, is used to offer the input that operating body carries out information;
Described input equipment comprises:
Touch pad is used to offer operating body and operates;
First sensing unit is arranged on the below of described touch pad, is used to obtain the touching position information of described operating body on described touchpad surface, and exports the coordinate information of described touching position information correspondence;
Second sensing unit is arranged on the below of described touch pad, is used to obtain the force value of described operating body on described touch pad, and exports described force value;
Processing unit is connected with second sensing unit with described first sensing unit respectively, is used for when described force value during greater than a preset pressure threshold values, in the location triggered right button function or the space bar function of the pairing cursor of described coordinate information.
Preferably, described input equipment also comprises:
Supporting construction, be used to support described touch pad, described first sensing unit and described second sensing unit, described supporting construction has first state under the effect of the external force by described touch pad transmission, under the effect that described external force is cancelled, has second state, described first state has primary importance, described second state has the second place, and wherein said primary importance is different with the described second place.
Embodiments of the invention have following beneficial effect:
Such scheme is by installing first sensing unit and second sensing unit below touch pad, wherein first sensing unit can induce the position of finger presses; Second sensing unit can induce the pressure of finger presses touch pad, the user is with finger when pushing touch pad on touch pad, can be according to touch location and the pressure size when touching can realize that conventional touch pad and mechanical key cooperate the various functions of being finished.No longer include independently mechanical key outside the touch pad area, the place of placing mechanical key in the past can be used for placing touch pad, and it is many that the touch pad area is increased.In addition, the whole operation process is all finished on touch pad, removes push corresponding mechanical key, greatly user friendly operation with finger in the touch pad outside unlike also needing in the past.
Embodiment
For technical matters, technical scheme and advantage that embodiments of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention must cooperate two mechanical keys just can finish input equipment at the touch pad of notebook computer in the prior art to have various functions, and two mechanical keys take the keyboard of notebook computer area, make whole touch pad take bigger area and inconvenient problem with use, the computing machine that a kind of input equipment is provided and comprises this input equipment.
As Fig. 5, Figure 6 and Figure 7, embodiments of theinvention input equipment 50 can be specially the single piece type touch pad, the dependency structure that just has only touch pad, and do not comprise mechanical key, thisinput equipment 50 can also be arranged in the electronic equipments such as notebook computer, intelligent PDA, mobile communication terminal and player, as the input equipment of these electronic equipments, finish input function.
Thisinput equipment 50 specifically comprises:
Touch pad 52 is used to offer operating body and operates;Touch pad 52 herein is meant the touch layer of the touchpad surface of ordinary meaning;
First sensingunit 53 can be arranged on thistouch pad 52 belows, is used to obtain the lip-deep touching position information of described operating body attouch pad 52, and exports the coordinate information of this touching position information correspondence; This coordinate information is used for the position of the cursor of definite pairing electronic equipment of this input equipment; This coordinate information can comprise the coordinate figure and the changes in coordinates amount of touch point when touching; As, can be that finger is clicked on the surface oftouch pad 52 or slided, the coordinate figure that the position converted X/Y direction in the coordinate system to when thisfirst sensing unit 53 will be with the clicking of this finger is exported; When finger slided on the surface oftouch pad 52, thisfirst sensing unit 53 can convert the reference position of this finger and final position and amount of movement to the changes in coordinates amount of X/Y direction in the coordinate system too and export;
Second sensing unit 54 can be arranged on thistouch pad 52 belows, is used to obtain operating body and applies the force value of external force on the surface of thistouch pad 52, and export described force value;
Processingunit 55 is connected withsecond sensing unit 54 with above-mentionedfirst sensing unit 53 respectively, is used for when this force value during greater than a preset pressure threshold values, in the location triggered right button or the space bar function of the pairing cursor of this coordinate information.
Concrete implementation will be described in detail in the following embodiments.
During specific implementation, this input equipment also can comprise a supportingconstruction 51, this supportingconstruction 51 is used to support above-mentionedtouch pad 52, thefirst sensing units 53 andsecond sensing unit 54, and this supportingconstruction 51 is under the effect of the external force of transmitting by above-mentionedtouch pad 52, has first state, when this external force is cancelled, have second state, wherein this first state has primary importance, second state has the second place, and this primary importance is different with the second place.
Specifically, this supportingconstruction 51 can comprise aliner plate 512; First sensingunit 53,second sensing unit 54 andprocessing unit 55 all can be arranged on thisliner plate 512; Describedtouch pad 52 is positioned on thisfirst sensing unit 53,second sensing unit 54 and thisprocessing unit 55, and is connected with them; This supportingconstruction 51 also comprises aframework 511, and thisframework 511 has an accommodation space; Thisliner plate 512, thisfirst sensing unit 53,second sensing unit 54, processingunit 55 and thistouch pad 52 are arranged in this accommodation space, and thistouch pad 52 can slide along thisframework 511; Thistouch pad 52 is when being subjected to the pressing operation of user's finger, thistouch pad 52 can be along thisframework 511 to lower slider, make supportingconstruction 51 have first state, and be positioned at primary importance, when user finger lifts when leaving thistouch pad 52, thistouch pad 52 also can return to original position, makes supportingconstruction 51 have second state, and is positioned at the second place.
Theseframework 511 concrete structures as shown in Figure 7, on the basis of the embodiment of above-mentioned input equipment shown in Figure 6, thisframework 511 can specifically comprise: a plurality of column chutes (can determine according to the global shape of thistouch pad 52 by the number of this column chute, astouch pad 52 is square, then need on this each square angle, a column chute be set all), these column chutes are arranged on the edge ofliner plate 512, andtouch pad 52 can slide up and down along this column chute.Thistouch pad 52 is when being subjected to the pressing operation of user's finger, thistouch pad 52 can be along this column chute to lower slider, the pressure on thesetouch pad 52 surfaces of second sensing unit, 54 perception, processingunit 55 can be judged thistouch pad 52 current operated states according to this pressure; Also can be provided with a resilience mechanism (not looking out among the figure) simultaneously on this column chute, be used for lifting when leaving thistouch pad 52 when user finger, thistouch pad 52 also can return to original position;
Certainly, this column chute with and on resilience mechanism can also with as interior " X " support and the spring caps of existing keyboard replace, should be arranged onliner plate 512 belows by " X " support, this spring caps is embedded in described " X " support.
In addition,touch pad 52 also can along the column chute after lower slider, moving ontouch pad 52 surfaces under the constant situation of acting force of finger or under the constant situation of current finger acting force again, move ontouch pad 52 surfaces with an other finger, obtain thistouch pad 52 current suffered pressure sizes, further judge the track that finger moves, thereby judge the current operation wish of user, as realizing " selection " and " dragging ", when being similar to mouse and pressing left button, drag mouse and move, realize the selection of delegation or multirow literal, can certainly realize the selection in a plurality of non-legible zones.
In concrete the application,first sensing unit 53 in the foregoing description can be specially:
Be positioned at the circuit board below thetouch pad 52, the upper surface of this circuit board is provided with electrode (electrod-array shown in the label among Fig. 5 52), the coordinate figure and the changes in coordinates amount of touch point when these electrode touchsensitive plate 52 surfaces are touched, and export this coordinate figure and changes in coordinates amount by this circuit board.
The touch pad 52 here can be the touch layer of common touch pad, and really can sense the touch of finger on this touch layer, thereby produce finger motion locus be this circuit board with and on electrod-array, according to capacitance induction principle, any conductive electrode and the earth or another conductor can form a group capacitor Cp, when people's finger or human body during near this capacitor Cp, the stray capacitance of human body will be coupled on the Cp two-plate, make the Cp value become big, whether human body is arranged near this capacitor Cp by measuring the change situation of Cp, can measuring.Especially.This circuit board can be PCB (printed circuit board (PCB)) plate, this pcb board with and on electrod-array, constitute a coordinate system, when pointing at these array upper surface paddlings, capacitance on the corresponding electrode will change, carry out analytical calculation by situation of change, know that promptly the user points the coordinate figure at (finger or a plurality of finger) place each electrode capacitance value, and the situation of change of coordinate.This coordinate figure and coordinate figure situation of change are sent to processing unit 55, the force value that cooperates second sensing unit 54 to obtain again, can realize " cursor navigation " on the computer screen, functions such as " amplification is dwindled ", " rotation ", " selection ", " affirmation ", " pulling ", " right button ".
In concrete the application,second sensing unit 54 in the foregoing description can specifically comprise:
An one pressure keyswitch and a circuit (not looking out among the figure), an end ground connection of this pressure keyswitch, the other end connects the input end of this circuit, and the output terminal of this circuit connects above-mentionedprocessing unit 55;
The force value of vertical direction during the surperficial pressurized of this pressure keyswitch touchsensitive plate 52, this vertical direction is meant, direction perpendicular to touchpad surface, and according to the state of this force value control self, this circuit is according to first state of described keyswitch, control the open circuit of self, closed-loop path according to second State Control self of this keyswitch, when being in "open" state as this keyswitch, this circuit is an open circuit, when this keyswitch was in "off" state, this circuit was the closed-loop path, and exported described force value at open circuit or when closed circuit with the level signal form;
Certainly, among this embodiment, " opening " of keyswitch is relative with " pass " state, is not absolute, and also, when this keyswitch was in "open" state, this circuit was the closed-loop path; When this keyswitch was in "off" state, this circuit was an open circuit.
Specifically, this pressure keyswitch is installed at the lower surface of above-mentioned PCB circuit board, when this pressure keyswitch is used to survey the finger presses circuit board surface to the force value of circuit board; When force value during less than default pressure threshold value, keyswitch is opened, and corresponding circuit is an open circuit, and when this force value during greater than default pressure threshold value, this switch is just closed, and corresponding circuit also forms the closed-looppath.Processing unit 55 cooperates the folding condition of button again according to finger coordinate figure that is obtained and changes in coordinates situation thereof, just can judge user's operation wish and mode of operation.
Among this embodiment, adopt pressure keyswitch and corresponding circuit to realize the pressure perceptional function ofsecond sensing unit 54, cost is little, and is simple and convenient.
Certainly in the embodiments of the invention, do not get rid of and adopt other functional module to realize 54 functions that can realize of this second sensing unit, as thissecond sensing unit 54 can also be a pressure transducer or pressure detector (as shown in Figure 8), can obtain the suffered pressure of touch pad mounted thereto equally.
As shown in Figure 9, be a kind of user mode synoptic diagram of thisinput equipment 50, thissecond sensing unit 54 can also be specially except above-mentioned implementation:
One apart from deriving means, is arranged on the described column chute of above-mentioned Fig. 7, along the distance of this column chute to lower slider, obtains corresponding force value according to this distance when being used to obtain thesetouch pad 52 pressurizeds, and exports this force value.Specifically, as this apart from deriving means when obtainingtouch pad 52 pressurizeds along the distance of this column chute to lower slider, according to default changing the mechanism, convert this distance to corresponding pressure, this is changed the mechanism can be the distance of rule of thumb preserving in advance and the mapping relations table of pressure, and as decline N mm distance, corresponding pressure is the N1 ox, just can be with apart from converting corresponding pressure to by this corresponding relation, and carry out follow-up judgement according to this force value by processingunit 55.
In concrete the application, theprocessing unit 55 in the foregoing description can be specially an electric capacity chip.
Among this embodiment, thisinput equipment 50 does not need mechanical key, the all functions that two sensors by wherein and processing unit chip just can be finished conventional touch pad, and these sensors and processing unit chip all be positioned at touch pad below, reduced the area that input equipment takies smart machine relatively, be user-friendly to.
In addition, the use of different user for convenience, among each above-mentioned embodiment, processingunit 55 also can comprise: the unit is set, is used to be provided with described preset pressure threshold values.This preset pressure threshold values can be a default value that sets in advance at thisprocessing unit 55 chips, as the power of 20N, at the suffered pressure oftouch pad 52 during greater than 20N, just output and push relevant coordinate figure and steering order, otherwise, coordinate figure and steering order that output is relevant with touch;
Certainly, this is provided with the unit also can be an interface that is reflected in the smart machine, can allow the user according to oneself custom and needs this pressure threshold value be set or revised, and further satisfies user's actual demand, therefore, this is provided with the unit and can specifically comprises:
At least one is provided with the option unit, is used to provide pressure threshold value that option is set, and each is provided with the corresponding pressure threshold value scope of option, and wherein each is provided with all different other the pressure threshold value scopes that the option correspondence is set of the pressure threshold value scope of option correspondence.As the first pressure threshold value scope that the option unit is set be: less than 20N, the second pressure threshold value scope that the option unit is set is for being greater than or equal to 20N, and less than 50N, the 3rd pressure threshold value scope that the option unit is set is: be greater than or equal to 50N; Certainly can also have the 4th the option unit is set, the 5th is provided with the option unit ..., the user can make user's use experience better according to the use habit set pressure threshold values scope of oneself.
In addition, when specific implementation, thistouch pad 52 can comprise a virtual region, above-mentionedprocessing unit 55 is used for the coordinate information according to the output of first sensing unit, determine that described touch location is positioned at described virtual region, and described force value triggers right button function during greater than described preset pressure threshold values;
In this embodiment, realize that the left button function can have following three kinds of implementations:
1) can during less than described preset pressure threshold values,, trigger the left button function in described force value, for example touch, click in the optional position of touch pad;
2) also can be outside described virtual region, and described force value triggers the left button function during less than described preset pressure threshold values;
3) can also be outside described virtual region, in the described touchpad surface, and described force value triggers the left button function during greater than described preset pressure threshold values.
Same, in another embodiment, this first processing unit is positioned at described virtual region at definite touch location, and described force value also can realize triggering the space bar function during greater than described preset pressure threshold values; Among this embodiment, equally can be with above-mentioned 1), 2) and 3) three kinds of modes realize the left button function, repeat no more.
When specific implementation, thistouch pad 52 can comprise first virtual region and second virtual region, and described first virtual region and described second virtual region are not overlapping, and then processingunit 55 can specifically comprise:
First processing unit, be used for coordinate information according to 53 outputs of first sensing unit, determine that described touch location is positioned at described first virtual region, and described force value is during greater than described preset pressure threshold values, in the location triggered right button function of the pairing cursor of described coordinate information;
Second processing unit, be used for coordinate information according to 53 outputs of first sensing unit, determine that described touch location is positioned at described second virtual region, and described force value is during greater than described preset pressure threshold values, in the described space bar function of the location triggered of the pairing cursor of described coordinate information.
Among this embodiment,touch pad 52 is divided into first virtual region and second virtual region, and wherein, first virtual region is used for triggering right button, and second virtual region is used for triggering space bar, makes this touch pad can trigger the function of right button and space bar simultaneously.When realizing the left button function, the implementation of this left button function and above-mentioned 1), 2) with 3) described in mode similar, also have following three kinds:
1 ') can during less than described preset pressure threshold values, in the optional position of touch pad, be triggered the left button function in described force value;
2 ') can be outside described first virtual region and second virtual region, and described force value triggers the left button function during less than described preset pressure threshold values;
3 ') also can be outside described first virtual region and second virtual region, and described force value triggers the left button function during greater than described preset pressure threshold values.
Certainly in the above embodiments; on touch pad, also can realize other function key; as Alt key; Ctrl etc.; the implementation of these keys can to above-mentioned touch pad on realize that the mode of right button, space bar function is similar; do not repeat them here, but the implementation of these function keys also should be included within protection scope of the present invention, be included in and realize cursor navigation on the touch pad.
Usually, smaller to the touch pad applied pressure when user operates touch pad and carries out cursor navigation, in carrying out cursor navigation process, finger almost can contact touch pad constantly; When carrying out clicking operation, big slightly to the touch pad applied pressure, click action is normally pointed and is broken away from touch pad earlier, and next contact touch pad in the short time leaves touch pad afterwards fast; And the pressure of pushing key.backspace is similar with the pressure size of clicking touch pad, therefore, can utilize the characteristic when touch pad is clicked, and realizes the function of space bar on touch pad.
At last, among above-mentioned all embodiment of the present invention, the touch pad in the input equipment is to be that example is described with square, and the shape of this touch pad can also be designed to circle, ellipse etc. certainly, as long as it is comfortable that the user is used.
To sum up, the embodiment of above-mentioned input equipment of the present invention, first sensing unit and second sensing unit are installed below touch pad, wherein, first sensing unit can induce the positional information of finger on touch pad, second sensing unit can induce the pressure of finger presses touch pad, the user slides on touch pad with finger and when pushing touch pad, promptly can realize " cursor navigation ", " amplification is dwindled ", " rotation ", " selection ", " affirmation ", " pull ", " right button ", functions such as " space bars " (for example: when the user with finger during in the touch pad upper surface slide, can realize the function of cursor navigation less than the pressure of predefined pressure threshold value; When the user with two fingers on touch pad, in opposite directions or during reverse slide, can realize the function of dwindling or amplifying less than the pressure of predefined pressure threshold value; When user's usefulness is pushed touch pad above predefined pressure threshold value in the zone of setting, can realize the function of right button or space bar; Do not surpass predefined pressure threshold value fixed placement on touch pad when the user uses with a finger, when another finger slides in other zone, can realize the function of rotating; When the user pushes touch pad with surpassing predefined pressure threshold value in the zone of setting with a finger, when another finger slides in other zone, can realize the function that pulls; When the user clicks touchpad surface with a finger, and pressure promptly realizes confirming function when surpassing predefined threshold values).No longer include independently mechanical key outside the touch pad area, the place of placing mechanical key in the past can be used for placing touch pad, and it is many that the touch pad area is increased.In addition, the whole operation process is all finished on touch pad, removes push corresponding mechanical key, greatly user friendly operation with finger in the touch pad outside unlike also needing in the past.
As shown in figure 10, embodiments of the invention also provide a kind of computing machine 100, and this computing machine can be a pocket computer, and as notebook computer, this pocket computer comprises: pedestal 101 has an accommodation space;Input equipment 50 is arranged in this accommodation space, is used to offer the input that operating body carries out information;
Wherein, the 26S Proteasome Structure and Function of thisinput equipment 50 such as above-mentioned all explanations to thisinput equipment 50 do not repeat them here; But need to prove: the framework of above-mentionedinput equipment 50 can be the accommodation space framework on every side of this pedestal 101 in this computing machine 100, and in fact this framework can be the part of this pedestal 101.
This embodiment is by installing one second sensing unit below the touch pad of computing machine, can induce the pressure of finger presses touch pad, the user slides on this touch pad with finger and when pushing touch pad, promptly can realize functions such as " cursor navigation " function, " amplification is dwindled " function, " rotation " function, " selection " function, " affirmation " function, " pulling " function, " right button ", " space bar ".No longer include independently mechanical key outside the touch pad area, the place of placing mechanical key in the past can be used for placing touch pad, and it is many that the touch pad area is increased.In addition, the whole operation process is all finished on touch pad, removes push corresponding mechanical key, greatly user friendly operation with finger in the touch pad outside unlike also needing in the past.
Below in conjunction with the idiographic flow explanation, above-mentioned touch pad is realized the function in left-right key and space, as shown in figure 11:
Step 121, first sensing unit are obtained the touching position information of operating body on touchpad surface, and export the coordinate information of described touching position information correspondence, and described coordinate information is used for the position of the cursor of definite pairing electronic equipment of described input equipment;
Step 122, second sensing unit are obtained the force value of operating body on touchpad surface, and export this force value;
Step 123 judges whether described force value surpasses a preset pressure threshold values, if turn to step 124; Otherwise, turn to step 125;
Step 124 is according to described coordinate information, in the location triggered right button or the space bar function of the pairing cursor of described coordinate information;
Step 125, according to described coordinate information, output touch operation data and touch steering order realize the touch operation function according to described touch operation data and described touch steering order.
In addition, beforestep 121, can also comprise that the user sets or revise the step of the preset pressure threshold values of touch pad as required, the result of output satisfies the service data and the steering order of user's actual need or operating habit in thestep 123 like this.
To sum up, this method is pushed the pressure of touch pad by finger sensing, the user slides on this touch pad with finger and when pushing touch pad, when pressure during greater than the preset pressure threshold values, just can realize as right button or space bar function, when pressure during less than the preset pressure threshold values, just can realize and touch relevant operation, as realizing " cursor navigation ", " amplification is dwindled ", " rotation ", " selection ", " affirmation ", function such as " pull ", for example: when the user with finger during in the touch pad upper surface slide, can realize the function of cursor navigation less than the pressure of predefined pressure threshold value; When the user with two fingers on touch pad, in opposite directions or during reverse slide, can realize the function of dwindling or amplifying less than the pressure of predefined pressure threshold value; Do not surpass predefined pressure threshold value fixed placement on touch pad when the user uses with a finger, when another finger slides in other zone, can realize the function of rotating; Certainly, during less than the preset pressure threshold values, also can realize the left button function at pressure, when the user clicks touchpad surface with a finger, and pressure promptly realizes confirming function when surpassing predefined threshold values.Certainly in this method, realize left button function mode also can as above-mentioned as mentioned in 1 '), 2 '), 3 ') are described, do not repeat them here.The solution of the present invention no longer includes independently mechanical key outside the touch pad area, the place of placing mechanical key in the past can be used for placing touch pad, and it is many that the touch pad area is increased.In addition, the whole operation process is all finished on touch pad, removes push corresponding mechanical key, greatly user friendly operation with finger in the touch pad outside unlike also needing in the past.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.