CN103793068A - Keyboard with key conduction force adjusted according to requirements of user and adjusting method thereof - Google Patents
Keyboard with key conduction force adjusted according to requirements of user and adjusting method thereof Download PDFInfo
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- CN103793068A CN103793068A CN201410042114.2A CN201410042114A CN103793068A CN 103793068 A CN103793068 A CN 103793068A CN 201410042114 A CN201410042114 A CN 201410042114A CN 103793068 A CN103793068 A CN 103793068A
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Abstract
The invention relates to a keyboard with the key conduction force adjusted according to the requirements of a user and an adjusting method thereof. The keyboard comprises a plurality of keys. Each key is provided with a first key body and a keyboard controller. The keyboard controllers are used for generating first sensing values corresponding to the first key bodies after the first key bodies are pressed at first pressing forces, and the first sensing values are relevant to the first pressing forces in magnitude. The keyboard controllers are used for compensating the first sensing values by using first compensating values corresponding to the first key bodies so as to generate first adjusted sensing values. If the first adjusted sensing values are larger than a current threshold, the keyboard controllers confirm that the first key bodies are pressed and output first key codes corresponding to the first key bodies. By means of the keyboard and the adjusting method, the user can more flexibly grouping keyboard according to the requirements of the user and adjust actuation thresholds so as to set the key conduction force, and therefore the user can have better user experience when typing words or executing other application programs (such as computer games and the like).
Description
Technical field
The present invention relates to a kind of keyboard and control method thereof, and relate to especially a kind of keyboard and control method thereof of capable of regulating button conducting strength.
Background technology
Now, keyboard is widely used, becomes in computer peripheral equipment the input media the most often utilizing.But often plant produced keyboard quality is out inconsistent, what make that each keyboard can conducting button presses power difference to some extent.Therefore, making the pressing aspect power of button conducting, how making produced multiple keyboards have the homogeneity of higher degree, and how to allow keyboard do adaptive adjustment according to user's demand, is one of industry is endeavoured at present direction.
Summary of the invention
One of object of the present invention is done adaptive adjustment for allowing keyboard can meet according to user's demand by the conducting strength of button.
In order to achieve the above object, the present invention proposes a kind of keyboard, it is characterized in that this keyboard comprises a plurality of buttons and keyboard controller.One of them of these a plurality of buttons is the first button; After being used to this first button and being pressed with the first pressing force, keyboard controller produces the first sensing value corresponding to this first button, this first sensing value is relevant to the size of this first pressing force, and the first offset that this keyboard controller utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment; Wherein, if sensing value is more than or equal to current threshold value after this first adjustment, this keyboard controller judges that this first button is pressed, and output corresponds to the first key set code of this first button.
As optional technical scheme, this first offset be on the occasion of, 0 or negative value.
As optional technical scheme, these a plurality of buttons have respectively pressure drag material parts, and the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, make this first sensing value relevant to the size of this first pressing force.
As optional technical scheme, each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
As optional technical scheme, when these a plurality of buttons are applied in respectively the default pressing force of proofreading and correct, this keyboard controller also produces in response to this default pressing force of proofreading and correct a plurality of correction sensing value that correspond to respectively these a plurality of buttons; And this keyboard controller uses threshold value comparison by sensing value with proofreading and correct by these a plurality of corrections, to produce a plurality of offsets that correspond to respectively these a plurality of buttons, these a plurality of offsets comprise this first offset.
As optional technical scheme, this offset of each button with this correction that should button is equaled to this correction threshold value by sensing value sum.
As optional technical scheme, this correction uses threshold value as this current threshold value.
As optional technical scheme, this keyboard controller is also adjusted requirement in response to key press amount, to change this current threshold value.
As optional technical scheme, this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this current threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this current threshold value.
Keyboard of the present invention allows keyboard can make according to user's demand adjustment the power of pressing of button conducting by adjusting current threshold value, to increase the adaptability and the elasticity and the convenience that use of keyboard.And the present invention can allow multiple keyboards of the embodiments of the invention that factory produces have the homogeneity of pressing power of the button conducting of higher degree.
In addition, the present invention also proposes a kind of control method of keyboard, and this control method of keyboard comprises detection procedure.This detection procedure comprises the following steps: to provide keyboard, this keyboard has a plurality of buttons, one of them of these a plurality of buttons is the first button, after this first button is pressed with the first pressing force, produce the first sensing value corresponding to this first button, this first sensing value is relevant to the size of this first pressing force; The first offset that utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment; And if sensing value is more than or equal to current threshold value after this first adjustment, this keyboard judges that this first button is pressed, and output corresponds to the first key set code of this first button.
As optional technical scheme, these a plurality of buttons have respectively pressure drag material parts, and the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, make this first sensing value relevant to the size of this first pressing force.
As optional technical scheme, each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
As optional technical scheme, this control method of keyboard also comprises correction program, and this correction program comprises the following steps: to apply respectively the default pressing force of proofreading and correct on these a plurality of buttons; In response to this default pressing force of proofreading and correct, produce a plurality of correction sensing value that correspond to respectively these a plurality of buttons; And these a plurality of corrections are used to threshold value comparison with sensing value and correction, to produce a plurality of offsets that correspond to respectively these a plurality of buttons, these a plurality of offsets comprise this first offset.
As optional technical scheme, this offset of each button with this correction that should button is equaled to this correction threshold value by sensing value sum.
As optional technical scheme, this correction uses threshold value as this current threshold value.
As optional technical scheme, this control method of keyboard also comprises key press amount adjustment programme, and this key press amount adjustment programme comprises the following steps: to change this current threshold value; Wherein in this detection procedure, using this current threshold value after changing as this current threshold value.
As optional technical scheme, this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this current threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this current threshold value.
Control method of keyboard of the present invention allows keyboard can make according to user's demand adjustment the power of pressing of button conducting by adjusting current threshold value, to increase the adaptability and the elasticity and the convenience that use of keyboard.User can see through the application program of keyboard driver or collocation and input threshold value adjustment requirement, and keyboard controller can be adjusted requirement in response to this threshold value, heighten or turn down current threshold value, and utilize the current threshold value after upgrading to judge whether follow-up button is pressed.Control method of keyboard of the present invention can allow multiple keyboards of the embodiments of the invention that factory produces have the homogeneity of pressing power of the button conducting of higher degree.
In addition, the present invention also proposes a kind of keyboard that can adjust according to user operation push-button conducting strength, and this keyboard comprises a plurality of buttons and keyboard controller.One of them in these a plurality of buttons is the first button; After being used to this first button and being pressed with the first pressing force, keyboard controller produces the first sensing value corresponding to this first button, and the first offset that this keyboard controller utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment; Wherein this keyboard is by adjusting current threshold value, to control the start threshold value of this first button; Wherein, when sensing value after this first adjustment is more than or equal to this start threshold value, output corresponds to the first key set code of this first button.
As optional technical scheme, this keyboard is controlled by electronic installation, and this electronic installation is in order to executive utility, to adjust this current threshold value; Or this keyboard also comprises function key, this function key is in order to adjust this current threshold value; Or this keyboard also comprises roller, this roller is in order to adjust this current threshold value; Or this keyboard also comprises adjustment button, this adjustment button is in order to adjust this current threshold value.
As optional technical scheme, this first sensing value is relevant to the size of this first pressing force, if wherein after this first adjustment of this keyboard controller judgement, sensing value is more than or equal to this start threshold value, this keyboard controller judges that this first button is pressed, to export this first key set code that corresponds to this first button.
As optional technical scheme, these a plurality of buttons have respectively pressure drag material parts, and the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, make this first sensing value relevant to the size of this first pressing force.
As optional technical scheme, each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
As optional technical scheme, this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this start threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this start threshold value.
Keyboard of the present invention allows keyboard can make according to user's demand adjustment the power of pressing of button conducting by adjusting current threshold value, to increase the adaptability and the elasticity and the convenience that use of keyboard.And the present invention can allow multiple keyboards of the embodiments of the invention that factory produces have the homogeneity of pressing power of the button conducting of higher degree.
In addition, the present invention also proposes a kind of method of adjusting button conducting strength according to user's demand, the method comprises detection procedure, this detection procedure comprises the following steps: to provide keyboard, this keyboard has a plurality of buttons, one of them of these a plurality of buttons is the first button, produces the first sensing value corresponding to this first button after this first button is pressed with the first pressing force; The first offset that utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment; Adjust current threshold value, utilize this current threshold value to control the start threshold value of this first button, when sensing value after this first adjustment is more than or equal to this start threshold value, output corresponds to the first key set code of this first button.
As optional technical scheme, this keyboard is controlled by electronic installation, and this detection procedure also comprises this electronic installation executive utility, to adjust this current threshold value; Or by function key, to adjust this current threshold value; Or by slider roller, to adjust this current threshold value; Or by adjusting button, to adjust this current threshold value.
As optional technical scheme, this first sensing value is relevant to the size of this first pressing force, if wherein after this first adjustment of this keyboard controller judgement, sensing value is more than or equal to this start threshold value, this keyboard controller judges that this first button is pressed, to export this first key set code that corresponds to this first button.
As optional technical scheme, these a plurality of buttons have respectively pressure drag material parts, and the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, make this first sensing value relevant to the size of this first pressing force.
As optional technical scheme, each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
As optional technical scheme, this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this start threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this start threshold value.
The method of adjusting button conducting strength according to user of the present invention allows keyboard can make according to user's demand adjustment the power of pressing of button conducting by adjusting current threshold value, to increase the adaptability and the elasticity and the convenience that use of keyboard.User can see through the application program of keyboard driver or collocation and input threshold value adjustment requirement, and keyboard controller can be adjusted requirement in response to this threshold value, heighten or turn down current threshold value, and utilize the current threshold value after upgrading to judge whether follow-up button is pressed.Control method of keyboard of the present invention can allow multiple keyboards of the embodiments of the invention that factory produces have the homogeneity of pressing power of the button conducting of higher degree.
In addition, the present invention also proposes a kind of keyboard, and this keyboard comprises: the first button, the first path, the second button, the second path and keyboard controller.In the time that this first button is pressed by the first pressing force, this first path is in response to transmitting first signal; In the time that this second button is pressed by this first pressing force, this second path is in response to transmitting secondary signal; Keyboard controller stores the first offset, the second offset, start threshold value, the first key set code and the second key set code, and this keyboard controller can change out first signal value from this first signal, and this secondary signal is changed out secondary signal value certainly; Wherein when this keyboard controller receives this first signal from this first path, and the numerical relation between this first signal value, this first offset and this start threshold value three meets when pre-conditioned, and this keyboard controller is because exporting this first key set code to main frame by first signal; Wherein when this keyboard controller receives this secondary signal from this second path, and the numerical relation between this secondary signal value, this second offset and this start threshold value three meets this when pre-conditioned, and this keyboard controller is because should secondary signal exporting this second key set code to this main frame.
As optional technical scheme, when this start threshold value is adjusted by user, cause this first signal value, this first offset and adjust after this start threshold value three between numerical relation cannot meet this when pre-conditioned, this keyboard controller is ignored this first signal and is not exported this first key set code to this main frame.
As optional technical scheme, in the time that this first button is pressed by the second pressing force, this first path is in response to transmitting the 3rd signal, and this second pressing force is less than this first pressing force, and this keyboard controller also can be changed out the 3rd signal value from the 3rd signal; Wherein when this keyboard controller receives the 3rd signal from this first path, if the numerical relation between the 3rd signal value, this first offset and this start threshold value three does not meet this when pre-conditioned, this keyboard controller is ignored the 3rd signal and is not exported this first key set code to this main frame; If the 3rd signal, this first offset and adjust after this start threshold value three between numerical relation meet this when pre-conditioned, this keyboard controller is because exporting this first key set code to this main frame by the 3rd signal.
As optional technical scheme, this first path also has variable resistor, this variable resistor is coupled between this first button and this first path, and in the time that this first button is pressed by this first pressing force, this variable-resistance resistance value is compared with low and make this first signal have the first current value; In the time that this first button is pressed by this second pressing force, this variable-resistance resistance value is compared with high and make the 3rd signal have the 3rd current value, and this first current value is greater than the 3rd current value; This start threshold value is predetermined current value; Wherein this first current value and this first offset addition acquired results are more than or equal to this predetermined current value, and this keyboard controller is because exporting this first key set code to this main frame by the first current value; Wherein the 3rd current value and this first offset addition acquired results are less than this predetermined current value, and this keyboard controller is ignored the 3rd current value and do not exported this first key set code to this main frame.
As optional technical scheme, this variable resistor is a plurality of make and break contacts of this first button below, in the time that this first button is pressed by this first pressing force, in these a plurality of make and break contacts, there is M make and break contact conducting, in the time that this first button is pressed by this second pressing force, in these a plurality of make and break contacts, have N make and break contact conducting, wherein M>N, makes this first current value be greater than the 3rd current value.
As optional technical scheme, this first offset and this second offset calculate gained via correction program, this correction program comprises step: (1) presses respectively this first button and this second button to test pressing force, make it export respectively this first signal value and this secondary signal value, and this first signal value and this secondary signal value are all less than this start threshold value; (2) this start threshold value is deducted to this first signal value and obtains this first offset; (3) this start threshold value is deducted to this secondary signal value and obtains this second offset.
This is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this start threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this start threshold value.
Keyboard of the present invention can allow user can be more flexiblely according to its demand by keyboard point group, and adjust start threshold value to set the power of button conducting, can allow by this user in the time of typewriting or carry out other application program (such as computer game etc.) to there is better use experience.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram according to a kind of keyboard of the embodiment of the present invention;
Fig. 2 A illustrates the schematic diagram according to each button of the embodiment of the present invention with the keyboard of multiple sub-contact points;
Fig. 2 B illustrates the schematic diagram at four keyswitches of adjacent four corresponding switch retes of button of keyboard according to the embodiment of the present invention;
Fig. 3 A illustrates the corresponding equivalent circuit diagram of button " 1 " of Fig. 1;
Fig. 3 B illustrates corresponding another equivalent circuit diagram of button " 1 " of Fig. 1;
Fig. 4 illustrates the schematic diagram according to the button " 1 " of the use pressure drag material parts of the embodiment of the present invention, " 2 ", " Q " and " W " quadruple linkage;
Fig. 5 A-5B illustrates the equivalent circuit diagram according to the keyboard of the embodiment of the present invention;
After Fig. 6 illustrates button K_1, the K_Q of Fig. 5 A-5B and K_W and is pressed, the possible schematic diagram of the corresponding overall equivalent impedance of route that electric current is flowed through;
Button K_1, K_Q and K_W that Fig. 7 illustrates Fig. 6 impose while presetting correction pressing force, and its corresponding institute conduct electricity flow valuve is via the schematic diagram of the digital value of gained after analog digital conversion;
Fig. 8 illustrates the digital value of button K_1, the K_Q of Fig. 7 and the correction of K_W sensing value gained after offset compensation and proofreaies and correct the schematic diagram with threshold value TH1;
Fig. 9 illustrates user and heightens current threshold value to threshold value TH2 (0.8A), then each button K_1, K_Q and K_W is imposed to 80g pressing force, the digital value schematic diagram of gained after each button compensation;
Figure 10 illustrates user while turning down current threshold value to threshold value TH3 (0.6A), while then each button K_1, K_Q and K_W being imposed to 60g pressing force, and the digital value schematic diagram of gained after each button compensation;
When Figure 11 illustrates each button K_1, K_Q and K_W and distinctly has different threshold value, then each button K_1, K_Q and K_W are imposed to 80g pressing force, the digital value schematic diagram of gained after each button compensation.
Embodiment
Please refer to Fig. 1, it illustrates the schematic diagram according to a kind of keyboard of the embodiment of the present invention.Keyboard 10 comprises multiple buttons 100 and keyboard controller (in Fig. 1, not illustrating example microprocessor 44 as shown in Figure 5A).In the time that button 100 power of being pressed are pressed, keyboard controller: (1) produces the sensing value corresponding to this button 100, this sensing value therewith size of pressing force is correlated with.(2) offset that keyboard controller corresponds to button 100 in order to utilization compensates this sensing value, adjusts rear sensing value to produce.(3) be more than or equal to current threshold value if this adjusts rear sensing value, keyboard controller judges that button 100 is pressed, and the corresponding so far key set code of button 100 (Key Code) of output.
The present embodiment can allow keyboard 10 can make according to user's demand adjustment the power of pressing of button 100 conductings by adjusting current threshold value, to increase the adaptability and the elasticity and the convenience that use of keyboard 10.And the present embodiment can allow multiple keyboards 10 of the embodiments of the invention that factory produces have the homogeneity of pressing power of the button conducting of higher degree.Hereby further describe as follows.
The present embodiment proposes two kinds after button 100 is pressed with a pressing force, produces the button design of the sensing value relevant to the size of pressing force.The first button design please refer to the 2A～2B figure, and its complete detailed construction please refer to the particular content of No. 102214524 Republic of China's patent application cases.Fig. 2 A illustrates the keyboard according to each button of the embodiment of the present invention with multiple sub-contact points, and wherein, every sub-contact point has top electrode and the bottom electrode of each interval.As shown in Figure 2 A, have multiple buttons on keyboard 10, keyboard 10 comprises key cap layer 110, switch rete 120 and base plate 150.Switch rete 120 comprises upper film circuit layer 122, lower thin film circuit layer 126 and separation layer 124.Press for user in keycap region on key cap layer 110.Align with a keyswitch of switch rete 120 in each keycap region.For example align with the keyswitch 20 of switch rete 120 in keycap region 102, and wherein keyswitch 20 comprises corresponding region 108 on corresponding region 104, the lower thin film circuit layer 126 on upper film circuit layer 122 and the region 106 on separation layer 124.
Then, please refer to Fig. 2 B, it illustrates the schematic diagram of four keyswitches in the corresponding switch rete 120 of adjacent four buttons of keyboard 10 according to the embodiment of the present invention.Hereby take four adjacent buttons as " 1 ", " 2 ", " Q " and " W " quadruple linkage illustrates it as example, it corresponds to respectively keyswitch 20,30,40 and 50.Upper film circuit layer 122 has many top electrodes, for example, be top electrode E1～E5.Multiple top electrodes are formed on the lower surface of upper film circuit layer 122.Many top electrodes into strips, and along first direction extend, for example, extend along vertical direction.Lower thin film circuit layer 126 has many bottom electrodes, for example, be bottom electrode J1～J5.Many bottom electrodes are formed at the upper surface of lower thin film circuit layer 126.Many bottom electrodes into strips, and along second direction extend, be for example to extend along horizontal direction.Wherein, first direction is not parallel to second direction to form a plurality of point of crossing.
In Fig. 2 B, in switch rete 120, one key " 1 " corresponds to keyswitch 20, and one key " 2 " corresponds to keyswitch 30, and one key " Q " corresponds to keyswitch 40, and one key " W " corresponds to keyswitch 50.In addition, switch rete 120 has multiple sub-contact point P1-Pn corresponding to the keyswitch 20 of one key " 1 ", for example: sub-contact point P1 is positioned at the point of crossing of top electrode E1 and bottom electrode J2.In the time that button " 1 " is not pressed, all not conductings of sub-contact point P1-Pn; Take sub-contact point P1 as example, top electrode E1 keeps separating and not conducting up and down with bottom electrode J2 each other.Otherwise, in the time that button " 1 " is pressed, the application of force that can bear at least partly button " 1 " in sub-contact point P1-Pn and be extruded and conducting, and the size of the pressing force that is pressed to button " 1 " of the number of the sub-contact point being switched on is relevant.
More specifically, can find out that sub-contact point P1 and P2 are positioned at top electrode E1 upper by Fig. 2 B, it is upper that sub-contact point P3 to P5 is positioned at top electrode E2, and sub-contact point P6 to P7 is positioned on top electrode E3.Therefore, in the time that button " 1 " is pressed and is expressed to parton contact point, the corresponding top electrode of sub-contact point that these are extruded is close to each other with bottom electrode and contact, and the sub-contact point conducting that these are extruded.For example, when user is during with lighter strength pressing keys " 1 ", the amount of exercise moving downward of key cap layer 110 deflection less or distortion that corresponds to the keycap region 102 of button " 1 " is less, and then make the upper film circuit layer 122 of keyswitch 20 of the switch rete 120 that button " 1 " is corresponding less with the area that lower thin film circuit layer 126 contacts with each other, the number of the sub-contact point being pressed against is less, makes the number of the sub-contact point that can be switched on also less.Otherwise, when user is during with heavier strength pressing keys " 1 ", the amount of exercise the moving downward deflection large or distortion of key cap layer 110 that corresponds to the keycap region 102 of button " 1 " is larger, and then make the upper film circuit layer 122 of keyswitch 20 of the switch rete 120 that button " 1 " is corresponding larger with the area that lower thin film circuit layer 126 contacts with each other, the sub-contact point being pressed against is more, makes the number of the sub-contact point that can be switched on also more.By this, can be by different power pressing keys " 1 ", to change the conducting number of the sub-contact point in keyswitch 20, to change the corresponding resistance value of button " 1 ".
In circuit diagram, this little contact point can represent it with the assembly such as resistance and switch respectively.As shown in Figure 3A, it illustrates the corresponding equivalent circuit diagram of button " 1 " of Fig. 1.Sub-contact point P1-Pn is respectively with sub-resistance R 1-Rn and sub-switch S 1-Sn equivalence.Sub-resistance R 1-Rn respectively with sub-switch S 1-Sn electric property coupling.Group contact point is switched on, and corresponding sub-switch will conducting.When button " 1 " is subjected to one gentlyer while pressing power F1, because the contact area of pressing is less, the number of the sub-contact point of conducting is less, therefore the sub-switch that can be switched on is also less, and for example actuating switch S1-S3 only.And when button " 1 " be subjected to one heavier while pressing power F2, can be because of the contact area of pressing compared with the sub-switch of parallel connection large and that conducting is more, the sub-switch S 1-Sn of for example conducting.The corresponding equivalent circuit diagram of button shown in Fig. 3 A " 1 " also can equivalence become the equivalent circuit diagram that comprises variable resistor R11 and switch S 11 shown in Fig. 3 B, and wherein, the size of variable resistor R11 is relevant with the corresponding sub-resistance of the sub-switch being switched on.
Therefore, differently press power and can make button " 1 " entirety there is different resistance value R11.When press power make corresponding adjustment after sensing value and the current numerical relation of threshold value meet when pre-conditioned, keyboard corresponds to output the key set code of button " 1 ".Because sub-resistance R 1-Rn is in parallel, the power of pressing is larger, the more sub-switches of parallel connection of conducting, the resistance value R11 of button " 1 " entirety is less, be button " 1 " entirety resistance value R11 with press power and be inversely proportional to, current threshold value can be set as to resistance value, again because the resistance value R11 of button " 1 " entirety is along with the increase of pressing power diminishes gradually, can by pre-conditioned be defined as adjust after sensing value while being less than or equal to current threshold value, keyboard corresponds to output the key set code of button " 1 ".Again due to for same button " 1 ", resistance value R11 is less, current value is larger, and resistance value R11 with press power and be inversely proportional to, current value to press power and be directly proportional, therefore current threshold value can be set as to current value, and pre-conditioned be defined as adjust after sensing value while being more than or equal to current threshold value, keyboard corresponds to output the key set code of button " 1 ".
In addition, the second button design is used pressure drag material (Piezo Resistive Material) parts in button.Please refer to Fig. 4, it illustrates the schematic diagram according to the button " 1 " of the use pressure drag material parts of the embodiment of the present invention, " 2 ", " Q " and " W " quadruple linkage.Button " 1 ", " 2 ", " Q " and " W " represent it with code name K_1, K_2, K_Q, K_W respectively.The resistance value of pressure drag material changes along with born pressure.The resistance value of pressure drag material parts of button is relevant with the size of pressing force.In Fig. 4, pressure drag material is with a variable resistor equivalence.After button is pressed, variable resistor can change variable-resistance resistance value according to pressing power.The button of the second button design of use pressure drag material parts similarly can use a variable resistor and a switch equivalence.For instance, the circuit shown in Fig. 3 B also can be used as the equivalent electrical circuit of the button " 1 " of the second button design.After this presses the corresponding adjustment of power, sensing value and the current numerical relation of threshold value meet when pre-conditioned, and keyboard corresponds to output the key set code of button.Because variable resistor can change variable-resistance resistance value according to pressing power, can be set to resistance value or current value by current threshold value, and arrange pre-conditioned accordingly, similar with the principle of the first button design, separately do not repeat.
The cause description hereby button of diverse location in keyboard to different resistance values is as follows.Please refer to Fig. 5 A and Fig. 5 B, Fig. 5 A and 5B illustrate the equivalent circuit diagram according to the keyboard 10 of the embodiment of the present invention.Each button is by a variable resistor and a switch equivalence, (with code name, K_1 represents it to for example button " 1 ", or be called the first button) by variable resistor R11 and switch S 11 equivalences, and button " Q " (represent it with code name K_Q, or be called the second button) is by variable resistor R21 and switch S 21 equivalences.Keyboard 10 also comprises the first multiplexer 41, the second multiplexer 42, analog-digital converter 43 and microprocessor 44.Microprocessor 44 can the execute key disk controller function of all buttons of keyboard scan in turn.As shown in Figure 5A, in the time that (1) button K_1 is pressed, switch S 11 is switched on, and (2) though microprocessor 44 scan button K_1(also the first multiplexer 41 select conducting cabling L0 and the second multiplexer 42 to select conducting cabling L1) time, voltage source Vcc can see through cabling L0 and cabling L1, and electric current I corresponding button K_1 0 is sent to the second multiplexer 42; Now the electric current I 0 when conducting button K_1 see the length of length, cabling L1 of overall impedance value and variable resistor R11, cabling L0 relevant.Electric current I 0 second multiplexer 42 of flowing through, analog-digital converter 43 is digital signal by electric current I 0 size conversion, then digital signal is sent to microprocessor 44.
Similarly, as shown in Figure 5 B, in the time that (1) button K_Q is pressed, switch S 21 is switched on, and (2) though microprocessor 44 scan button K_Q(also the first multiplexer 41 select conducting cabling L2 and the second multiplexer 42 to select conducting cabling L3) time, voltage source Vcc can see through cabling L2 and cabling L3, and electric current I corresponding button K_Q 1 is sent to the second multiplexer 42; The overall impedance value that now electric current I 1 when conducting button K_Q is seen is relevant to the length of the length of variable resistor R21, cabling L2, cabling L3.Then, electric current I 1 second multiplexer 42 of flowing through, analog-digital converter 43 is digital signal by electric current I 1 size conversion, then by analog-digital converter 43, digital signal is sent to microprocessor 44.
From the above, because cabling L0 adds the L1 total length of (or being called the first path), add that the total length of L3 (or being called the second path) is different with cabling L2, therefore button K_1 and the corresponding resistance value of button K_Q are also not identical.This shows, due to the position difference of each button in keyboard, the total length of its corresponding cabling is also not identical, and while making button conducting, the corresponding overall impedance of route that electric current is flowed through is also not identical.So, even if supplying with the voltage source of button is equally all voltage vccs, in the time that user presses different key with identical strength, its corresponding current producing also can be because the difference of overall impedance value is different, makes the digital value that analog-digital converter 43 is exported also can be different.That is to say, even if impose the identical power of pressing on different key, the overall equivalent impedance producing after each button is pressed is also not identical with digital value, and this digital value is for example current value or magnitude of voltage etc.
After Fig. 6 illustrates button K_1, the K_Q of Fig. 5 A and Fig. 5 B and K_W and is pressed, the possible schematic diagram of the corresponding overall equivalent impedance of route that electric current is flowed through.In the time that button K_1 is pressed, the overall equivalent impedance of its correspondence is relevant to the resistance value sum of cabling L0 and L1.Similarly, when button K_Q is pressed, the overall equivalent impedance of its correspondence is relevant to the resistance value sum of cabling L2 and L3.Because each button in keyboard is because of its position difference, make corresponding track lengths and difference, therefore the resistance value sum of corresponding cabling is also not identical, corresponding overall equivalent impedance is also not identical.Even if therefore impose the identical strength of pressing, the overall equivalent impedance producing after each button is pressed is also not identical.As seen from Figure 6, even if impose the identical power of pressing, the overall equivalent impedance producing after button K_1, K_Q and K_W are pressed is not identical.
Please refer to Fig. 7, its button K_1, K_Q and K_W that illustrates Fig. 6 imposes while presetting correction pressing force, and its corresponding institute conduct electricity flow valuve is via the schematic diagram of the digital value of gained after analog digital conversion.A kind of mode that produces this digital value is, apply respectively this default pressing force of proofreading and correct on all buttons, and between two end points of the cabling flowing through in the corresponding On current of all buttons, apply identical voltage vcc (for example, between the first multiplexer 41 and the second multiplexer 42), then measure the size of current (being for example the corresponding electric current I 0 of button K_1) that flows through button.And this size of current is changed to (Analog to Digital Conversion via analog digital, ADC) afterwards, just can obtain current value D1, D2 and the D3 of each button, the current value of each button can be inversely proportional to the equivalent impedance of each button substantially.So the present invention is not limited to measure current value and implements the present invention, and other mode that produces this digital value in calculating voltage mode also can be applicable in the present embodiment.
First, as shown in table 1～table 2, it is 70 grams (g) that multiple buttons of keyboard are applied respectively to this default correction pressing force S1, and default correction is 0.7A with the current value of threshold value TH1.Microprocessor 44 each buttons of scanning (that is as shown in Fig. 5 A and Fig. 5 B, setting up in turn the current paths such as L0 and L1, L2 and L3...), produce corresponding so far multiple correction sensing value of a little buttons respectively.This proofreaies and correct by sensing value for example for corresponding to respectively digital value D1 (I measures _ 1 for 0.6A), D2 (I measurement _ Q is 0.5A) and the D3 (I measurement _ W is 0.4A) of button K_1, K_Q and K_W shown in Fig. 7.In addition, in following table 1～to 7, during by button conducting, the corresponding path of coiling part that electric current is flowed through is R path, the switch (being variable resistance part part) that electric current is flowed through is expressed as R switch, I measures representative correction sensing value, and I compensation represents and repeats no more it in thereafter by offset.
Table 1
Table 2
As shown in Figure 8, it illustrates button K_1, the K_Q of Fig. 7 and the correction of K_W sensing value and proofreaies and correct the schematic diagram with threshold value TH1 (0.7A).In Fig. 8, using threshold value TH1 (0.7A) as correction threshold value, deduct respectively these and proofread and correct with sensing value D1, D2 and D3, the difference of its gained, is the multiple offsets that correspond to respectively these buttons.That is the summation of sensing value for the correction of the offset of each button and corresponding each button, equals threshold value TH1.For example, the offset CP1 of button K_1 is deducted to proofread and correct by threshold value TH1 and obtains I compensation _ 1 with sensing value D1 for 0.1A, the offset CP2 of button K_Q is deducted and is proofreaied and correct that to obtain I compensation _ Q with sensing value D2 be 0.2A by threshold value TH1, and the offset CP3 of button K_W deducts correction by threshold value TH1, to obtain I compensation _ W with sensing value D3 be 0.3A.Then the key set code of the offset of each button, start threshold value and each button can be stored in keyboard controller.
So, by this correction program, can allow each button receiving defaultly when proofreading and correct pressing force S1 and being 70g, the sensing value for correction (I measurement) producing adds that it is 0.7A that the summation of offset (I compensation) equals threshold value TH1.This offset can be in order to compensate the current difference that between different key, overall equivalent impedance difference causes.Afterwards, in the time of keyboard normal running, the current sense value (digital value) producing when button can be pressed adds this offset, can compensate the different resistance value of each button.
As shown in table 3, in the time that each button receives S2 and is 80g, when 80g is greater than this default correction pressing force 70g, each button measures gained electric current and strengthens, make each button add up digital value I_total after compensation (that is digital value I_total after compensation equal I measure add I compensation) can be greater than threshold value TH1, microprocessor 44 judges that these three buttons are pressed really.
As shown in table 4, in the time that each button receives S3 and is 60g, when 60g is less than this default correction pressing force 70g, each button measures gained current reduction, make each button add up digital value after compensation (that is digital value I_total after compensation equal I measure add I compensation) be all less than threshold value TH1, microprocessor 44 judges that these three buttons are not all pressed.
| ? | Button 1 | Button Q | |
| Vcc | |||
| 6 | 6 | 6 | |
| I measures | 0.66 | 0.54 | 0.42 |
| I compensation | 0.1 | 0.2 | 0.3 |
| I_total | 0.76 | 0.74 | 0.72 |
| TH1 | 0.7 | 0.7 | 0.7 |
| Judge | Conducting | Conducting | Conducting |
Table 3
| ? | Button 1 | Button Q | |
| Vcc | |||
| 6 | 6 | 6 | |
| I measures | 0.54 | 0.46 | 0.375 |
| I compensation | 0.1 | 0.2 | 0.3 |
| I_total | 0.64 | 0.66 | 0.65 |
| TH1 | 0.7 | 0.7 | 0.7 |
| Judge | Not conducting | Not conducting | Not conducting |
Table 4
When user want to adjust button conducting press power size time, can reach by changing current threshold value.User can see through the application program of keyboard driver or collocation and input threshold value adjustment requirement, and keyboard controller can be adjusted requirement in response to this threshold value, heighten or turn down current threshold value, and utilize the current threshold value after upgrading to judge whether follow-up button is pressed.
It should be noted that, in the present embodiment, current value is adjusted as digital value, so that it meets the numerical relation between current threshold value, the digital value (being current value) for example adding up after compensation is more than or equal to current threshold value, judges that button is pressed.In practical operation, also resistance value or magnitude of voltage can be used as to digital value, make it be satisfied with the numerical relation between current threshold value by adjusting resistance value or magnitude of voltage, for example current threshold value is set as to resistance value, when the digital value (being resistance value) adding up after compensation is less than or equal to current threshold value, judge that button is pressed.User can decide digital value according to actual needs in its sole discretion, is not limited with above-mentioned.
Please refer to Fig. 9 and table 5, it illustrates user and heightens current threshold value to threshold value TH2 (0.8A), then each button K_1, K_Q and K_W is imposed to 80g pressing force, the digital value schematic diagram of gained after each button compensation.Can be found out by Fig. 9 and table 5, when each button K_1, K_Q and K_W are imposed to 80g pressing force, button K_1, K_Q and K_W can obtain current value D1', D2' and the D3' of each button, because the digital value of gained after each button compensation is respectively 0.76A, 0.74A and 0.72A, these digit value are all less than threshold value TH2 (0.8A), therefore keyboard controller judges that all buttons are not all pressed, and so can not export the key set code corresponding to these three buttons to host computer.Although so user carrys out pressing keys take 80g pressing force equally: at the default threshold value TH1 of table 3, under 0.7A state, three buttons are all judged as conducting; But heighten current door to threshold value TH2 (0.8A) state at table 5, three buttons are all judged as not conducting.
| ? | Button 1 | Button Q | |
| Vcc | |||
| 6 | 6 | 6 | |
| I measures | 0.66 | 0.54 | 0.42 |
| I compensation | 0.1 | 0.2 | 0.3 |
| I_total | 0.76 | 0.74 | 0.72 |
| TH2 | 0.8 | 0.8 | 0.8 |
| Judge | Not conducting | Not conducting | Not conducting |
Table 5
Table 6
Please refer to Figure 10 and table 6, it illustrates user while turning down current threshold value to threshold value TH3 (0.6A), while then each button K_1, K_Q and K_W being imposed to 60g pressing force, and the digital value schematic diagram of gained after each button compensation.Can be found out by Figure 10 and table 6, when button K_1, K_Q and K_W impose 60g pressing force, can obtain current value D1'', D2'' and the D3'' of each button, after each button compensation, the digital value of gained is respectively 0.64A, 0.66A and 0.65A, these digit value are all greater than threshold value TH3 (0.6A), therefore keyboard controller judges that these three buttons are all pressed, and so can export the key set code corresponding to these three buttons to host computer.Although so user presses each button with 60g pressing force equally: under the default threshold value TH1 state of table 4, three buttons are all judged as not conducting; But turning down current threshold value at table 6 is that under threshold value TH3 state, three buttons are all judged as conducting.If in addition user only think to adjust separately certain several button press power size time, can store respectively threshold value for each button, the threshold value that only changes specific keys is reached.Then the threshold value that user inputs each button through the application program of keyboard driver or collocation is adjusted requirement, and keyboard controller can be adjusted requirement in response to this threshold value, heighten or turn down the threshold value of specific keys, and utilize the threshold value after upgrading to judge whether follow-up this specific keys is pressed.
Please refer to Figure 11 and table 7, it illustrates each button K_1, K_Q and each other threshold value of K_W is respectively TH_1 (0.6A), TH_Q (0.7A), TH_W (0.8A), then while each button K_1, K_Q and K_W being imposed to 80g pressing force, the digital value schematic diagram of gained after each button compensation.Can be found out by Figure 11 and table 7, when button K_1, K_Q and K_W impose 80g pressing force, can obtain current value D1', D2' and the D3' of each button, and the digital value of gained is respectively 0.76A, 0.74A, 0.72A after each button compensation, wherein the digital value of button K_1, K_Q is greater than respectively TH_1 (0.6A), TH_Q (0.7A), and therefore keyboard controller judges that these two buttons are pressed; And the digital value of button K_W is less than TH_W (0.8A), therefore keyboard controller judges that button W is not pressed.So keyboard controller only can be exported the key set code corresponding to button K_1, K_Q to host computer, but can not export the key set code corresponding to button K_W to host computer.So can meet user's specific (special) requirements: (1) comes pressing keys K_1, K_Q with lower pressing force, just can make easily button K_1, K_Q conducting, (2) need to carry out pressing keys K_W with higher pressing force, just can make button K_W conducting.
| ? | Button 1 | Button Q | |
| Vcc | |||
| 6 | 6 | 6 | |
| I measures | 0.66 | 0.54 | 0.42 |
| I compensation | 0.1 | 0.2 | 0.3 |
| I_total | 0.76 | 0.74 | 0.72 |
| Threshold value | TH_1=0.6 | TH_Q=0.7 | TH_W=0.8 |
| Judge | Conducting | Conducting | Not conducting |
Table 7
Generally speaking, under the framework of Fig. 5 A and Fig. 5 B, as shown in table 3, when button K_1 is pressed power F0 (70g) while pressing, the first path L0 and L1 are in response to transmitting first signal.When button K_Q is pressed power F0 while pressing, the second path L2 and L3 are in response to transmitting secondary signal.Keyboard controller stores the first offset I_ compensation 1 (0.1A) and the second offset I_ compensation Q (0.2A), and using threshold value TH1 (0.7A) as start threshold value, the first key set code " 1 " can be changed out first signal value I measurement 1, the second key set code " Q " from first signal can change out secondary signal value I measurement Q from secondary signal.When keyboard controller receives first signal from the first path L0 and L1, and first signal value I measurement 1 and first offset I_ compensation 1 (0.1A) sum operation acquired results meet while being more than or equal to start threshold value TH1 (0.7A), and keyboard controller is exported the first key set code " 1 " to a main frame (not illustrating) in response to first signal.When keyboard controller receives secondary signal from the second path L2 and L3, and secondary signal value I measures Q and the second offset I_ compensation Q (0.2A) sum operation acquired results meets while being more than or equal to start threshold value TH1 (0.7A), and keyboard controller is exported the second key set code " Q " to main frame in response to secondary signal.
As shown in table 5, wherein when start threshold value is adjusted and risen to TH2 (0.8A) by user, cause first signal value I to measure 1 and the first offset I_ when compensating 1 sum operation acquired results and cannot meeting the start threshold value TH2 (0.8A) being more than or equal to after adjustment, keyboard controller is ignored first signal and is not exported the first key set code " 1 " to main frame.
As shown in table 4, in the time that the first button (can be one of them of a plurality of buttons 100, lower with) is pressed by the second pressing force (60g), the first path is in response to transmitting the 3rd signal.The second pressing force is less than the first pressing force.Keyboard controller also can be changed out the 3rd signal value I from the 3rd signal and measure 1 (0.54A).When keyboard controller receives the 3rd signal from the first path, and using threshold value TH1 (0.7A) as start threshold value, and the 3rd signal value (0.54A) and the first offset (0.1A) sum operation acquired results do not meet while being more than or equal to start threshold value TH1 (0.7A), and keyboard controller is ignored the 3rd signal and do not exported the first key set code " 1 " to this main frame.
As shown in table 6, in the time that start threshold value is reduced to threshold value TH3 (0.6A) by user's adjustment, while causing the 3rd signal value (0.54A) and the first offset (0.1A) sum operation acquired results to meet the start threshold value TH3 (0.6A) being more than or equal to after adjustment, keyboard controller is exported the first key set code " 1 " to main frame in response to the 3rd signal.
Above-mentioned variable resistor is for example multiple make and break contacts of the first button below.In the time that the first button is pressed by the first pressing force, in multiple make and break contacts, there is M make and break contact conducting, this variable-resistance resistance value is compared with low and make this first signal have the first current value.In the time that the first button is pressed by the second pressing force, in multiple make and break contacts, there is N make and break contact conducting, this variable-resistance resistance value is compared with high and make the 3rd signal have the 3rd current value, and M>N, makes the first current value be greater than the 3rd current value.
For example, as shown in Figure 2 B, above-mentioned make and break contact is for example sub-contact point.If when button 100 is pressed with the first heavier pressing force, suppose that the first pressing force causes having 5 make and break contact conductings, if when button 100 is pressed with the second lighter pressing force, suppose that the second pressing force causes having 2 make and break contact conductings.Therefore, in the time that button 100 is pressed with the first heavier pressing force, because the make and break contact number being switched on is more, resistance in parallel is more, make the equivalent resistance of button 100 less, therefore press the first current value of institute's conducting with the first heavier pressing force, can be greater than the 3rd current value of pressing institute's conducting with the second lighter pressing force.
In another embodiment, more can a keyboard point group be set by said method, make a certain district button in keyboard to do special setting according to user's demand.For example, in Fig. 1, if user more often uses the directionkeys such as " ↑ ", " ↓ ", " ← ", " → ", and need to allow these four buttons there is higher sensitivity.
If allow user gently press button, can make button send out corresponding keypad code time, can utilize said method, first all buttons on keyboard 10 are proofreaied and correct, more often use again this four direction key of " ↑ ", " ↓ ", " ← ", " → " for user, further adjust the corresponding so far start threshold value of four buttons.For example the start threshold value of these four buttons is made as to less numerical value, these four buttons only need the less power of pressing, can allow the corresponding offset computing acquired results that this presses digital value that power produces and these four buttons be easier to meet and be more than or equal to start threshold value, key set code is sent.Can increase by this sensitivity of these four buttons.Otherwise, if the start threshold value of these four buttons is made as larger numerical value, these four buttons need the larger power of pressing, and just can allow the corresponding offset computing acquired results that this presses digital value that power produces and these four buttons meet and be more than or equal to start threshold value.In the case, these four buttons need user's weight just can make key set code be sent, so the sensitivity of four buttons is lower.
Other button also, by adjusting corresponding start threshold value, changes the size of the conducting power of this button.The present embodiment can allow user can be more flexiblely according to its demand by keyboard point group, and adjust start threshold value to set the power of button conducting, can allow by this user in the time of typewriting or carry out other application program (such as computer game etc.) to there is better use experience.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (36)
1. a keyboard, is characterized in that this keyboard comprises:
A plurality of buttons, one of them of these a plurality of buttons is the first button; And
Keyboard controller, after being used to this first button and being pressed with the first pressing force, produce the first sensing value corresponding to this first button, this first sensing value is relevant to the size of this first pressing force, and the first offset that this keyboard controller utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment;
Wherein, pre-conditioned if this first numerical relation of adjusting rear sensing value and current threshold value meets, this keyboard controller judges that this first button is pressed, and output corresponds to the first key set code of this first button.
2. keyboard according to claim 1, is characterized in that: this first offset on the occasion of, 0 or negative value.
3. keyboard according to claim 1, it is characterized in that: these a plurality of buttons have respectively pressure drag material parts, the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, makes this first sensing value relevant to the size of this first pressing force.
4. keyboard according to claim 1, is characterized in that: each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
5. keyboard according to claim 1, it is characterized in that: when these a plurality of buttons are applied in respectively the default pressing force of proofreading and correct, this keyboard controller also produces in response to this default pressing force of proofreading and correct a plurality of correction sensing value that correspond to respectively these a plurality of buttons; And
This keyboard controller is used threshold value comparison by these a plurality of corrections with sensing value and correction, and to produce a plurality of offsets that correspond to respectively these a plurality of buttons, these a plurality of offsets comprise this first offset.
6. keyboard according to claim 5, is characterized in that: this offset of each button with this correction sensing value sum that should button is equaled to this correction threshold value.
7. keyboard according to claim 5, is characterized in that: this correction uses threshold value as this current threshold value.
8. keyboard according to claim 1, is characterized in that: this keyboard controller is also adjusted requirement in response to key press amount, to change this current threshold value.
9. keyboard according to claim 1, is characterized in that: this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this current threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this current threshold value.
10. a control method of keyboard, is characterized in that this control method of keyboard comprises:
Detection procedure, this detection procedure comprises the following steps:
Keyboard is provided, this keyboard has a plurality of buttons, one of them of these a plurality of buttons is the first button, produces the first sensing value corresponding to this first button after this first button is pressed with the first pressing force, and this first sensing value is relevant to the size of this first pressing force;
The first offset that utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment; And
If it is pre-conditioned that the numerical relation after this first adjustment between sensing value and current threshold value meets, this keyboard judges that this first button is pressed, and output corresponds to the first key set code of this first button.
11. control method of keyboard according to claim 10, it is characterized in that: these a plurality of buttons have respectively pressure drag material parts, the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, makes this first sensing value relevant to the size of this first pressing force.
12. control method of keyboard according to claim 10, is characterized in that: each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
13. control method of keyboard according to claim 10, is characterized in that: this control method of keyboard also comprises correction program, and this correction program comprises the following steps:
On these a plurality of buttons, apply respectively the default pressing force of proofreading and correct;
In response to this default pressing force of proofreading and correct, produce a plurality of correction sensing value that correspond to respectively these a plurality of buttons; And
These a plurality of corrections are used to threshold value comparison with sensing value and correction, and to produce a plurality of offsets that correspond to respectively these a plurality of buttons, these a plurality of offsets comprise this first offset.
14. control method of keyboard according to claim 13, is characterized in that: this offset of each button with this correction sensing value sum that should button is equaled to this correction threshold value.
15. control method of keyboard according to claim 14, is characterized in that: this correction uses threshold value as this current threshold value.
16. control method of keyboard according to claim 10, is characterized in that: this control method of keyboard also comprises key press amount adjustment programme, and this key press amount adjustment programme comprises the following steps:
Change this current threshold value;
Wherein, in this detection procedure, using this current threshold value after changing as this current threshold value.
17. control method of keyboard according to claim 10, is characterized in that: this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this current threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this current threshold value.
Adjust the keyboard of button conducting strength according to user for 18. 1 kinds, it is characterized in that this keyboard comprises:
A plurality of buttons, one of them in these a plurality of buttons is the first button; And
Keyboard controller, after being used to this first button and being pressed with the first pressing force, produce the first sensing value corresponding to this first button, and the first offset that this keyboard controller utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment;
Wherein, this keyboard is by adjusting current threshold value, to control the start threshold value of this first button;
Wherein, when this first adjust after numerical relation between sensing value and this start threshold value meet pre-conditionedly, export the first key set code that corresponds to this first button.
19. keyboards according to claim 18, is characterized in that: this keyboard is controlled by electronic installation, and this electronic installation is in order to executive utility, to adjust this current threshold value;
Or this keyboard also comprises function key, this function key is in order to adjust this current threshold value;
Or this keyboard also comprises roller, this roller is in order to adjust this current threshold value;
Or this keyboard also comprises adjustment button, this adjustment button is in order to adjust this current threshold value.
20. keyboards according to claim 18, it is characterized in that: this first sensing value is relevant to the size of this first pressing force, if wherein after this first adjustment of this keyboard controller judgement, sensing value is more than or equal to this start threshold value, this keyboard controller judges that this first button is pressed, to export this first key set code that corresponds to this first button.
21. keyboards according to claim 18, it is characterized in that: these a plurality of buttons have respectively pressure drag material parts, the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, makes this first sensing value relevant to the size of this first pressing force.
22. keyboards according to claim 18, is characterized in that: each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
23. control method of keyboard according to claim 18, is characterized in that: this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this start threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this start threshold value.
Adjust the method for button conducting strength according to user for 24. 1 kinds, it is characterized in that the method comprises:
Detection procedure, this detection procedure comprises the following steps:
Keyboard is provided, and this keyboard has a plurality of buttons, and one of them of these a plurality of buttons is the first button, produces the first sensing value corresponding to this first button after this first button is pressed with the first pressing force;
The first offset that utilization corresponds to this first button compensates this first sensing value, to produce sensing value after the first adjustment; And
Adjust current threshold value, utilize this current threshold value to control the start threshold value of this first button, when this first adjust after numerical relation between sensing value and this start threshold value meet when pre-conditioned, export the first key set code that corresponds to this first button.
25. methods according to claim 24, is characterized in that: this keyboard is controlled by electronic installation, and this detection procedure also comprises this electronic installation executive utility, to adjust this current threshold value;
Or by function key, to adjust this current threshold value;
Or by slider roller, to adjust this current threshold value;
Or by adjusting button, to adjust this current threshold value.
26. methods according to claim 24, it is characterized in that: this first sensing value is relevant to the size of this first pressing force, if wherein after this first adjustment of this keyboard controller judgement, sensing value is more than or equal to this start threshold value, this keyboard controller judges that this first button is pressed, to export this first key set code that corresponds to this first button.
27. methods according to claim 24, it is characterized in that: these a plurality of buttons have respectively pressure drag material parts, the resistance value of these pressure drag material parts of this first button is relevant to the size of this first pressing force, makes this first sensing value relevant to the size of this first pressing force.
28. methods according to claim 24, is characterized in that: each button has a plural number contact point, and the number that this plural number of this first button sub-contact point is switched on is relevant to the size of this first pressing force.
29. control method of keyboard according to claim 24, is characterized in that: this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this start threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this start threshold value.
30. 1 kinds of keyboards, is characterized in that this keyboard comprises:
The first button;
The first path, in the time that this first button is pressed by the first pressing force, this first path is in response to transmitting first signal;
The second button;
The second path, in the time that this second button is pressed by this first pressing force, this second path is in response to transmitting secondary signal; And
Keyboard controller, stores the first offset, the second offset, start threshold value, the first key set code and the second key set code, and this keyboard controller can change out first signal value from this first signal, and this secondary signal is changed out secondary signal value certainly;
Wherein when this keyboard controller receives this first signal from this first path, and the numerical relation between this first signal value, this first offset and this start threshold value three meets when pre-conditioned, and this keyboard controller is because exporting this first key set code to main frame by first signal;
Wherein when this keyboard controller receives this secondary signal from this second path, and the numerical relation between this secondary signal value, this second offset and this start threshold value three meets this when pre-conditioned, and this keyboard controller is because should secondary signal exporting this second key set code to this main frame.
31. keyboards according to claim 30, it is characterized in that: when this start threshold value is adjusted by user, cause this first signal value, this first offset and adjust after this start threshold value three between numerical relation cannot meet this when pre-conditioned, this keyboard controller is ignored this first signal and is not exported this first key set code to this main frame.
32. keyboards according to claim 30, it is characterized in that: in the time that this first button is pressed by the second pressing force, this first path is in response to transmitting the 3rd signal, and this second pressing force is less than this first pressing force, this keyboard controller, also can change out the 3rd signal value from the 3rd signal;
Wherein work as this keyboard controller and receive the 3rd signal from this first path,
If the numerical relation between the 3rd signal value, this first offset and this start threshold value three does not meet this when pre-conditioned, this keyboard controller is ignored the 3rd signal and is not exported this first key set code to this main frame; If the 3rd signal, this first offset and adjust after this start threshold value three between numerical relation meet this when pre-conditioned, this keyboard controller is because exporting this first key set code to this main frame by the 3rd signal.
33. keyboards according to claim 32, is characterized in that: this first path also has variable resistor, and this variable resistor is coupled between this first button and this first path,
In the time that this first button is pressed by this first pressing force, this variable-resistance resistance value is compared with low and make this first signal have the first current value;
In the time that this first button is pressed by this second pressing force, this variable-resistance resistance value is compared with high and make the 3rd signal have the 3rd current value, and this first current value is greater than the 3rd current value;
This start threshold value is predetermined current value;
Wherein this first current value and this first offset addition acquired results are more than or equal to this predetermined current value, and this keyboard controller is because exporting this first key set code to this main frame by the first current value;
Wherein the 3rd current value and this first offset addition acquired results are less than this predetermined current value, and this keyboard controller is ignored the 3rd current value and do not exported this first key set code to this main frame.
34. keyboards according to claim 33, it is characterized in that: this variable resistor is a plurality of make and break contacts of this first button below, in the time that this first button is pressed by this first pressing force, in these a plurality of make and break contacts, there is M make and break contact conducting, in the time that this first button is pressed by this second pressing force, in these a plurality of make and break contacts, have N make and break contact conducting, wherein M>N, makes this first current value be greater than the 3rd current value.
35. keyboards according to claim 30, is characterized in that: this first offset and this second offset calculate gained via correction program, and this correction program comprises step:
(1) press respectively this first button and this second button to test pressing force, make it export respectively this first signal value and this secondary signal value, and this first signal value and this secondary signal value are all less than this start threshold value;
(2) this start threshold value is deducted to this first signal value and obtains this first offset; And
(3) this start threshold value is deducted to this secondary signal value and obtains this second offset.
36. control method of keyboard according to claim 30, is characterized in that: this is pre-conditioned is that after this first adjustment, sensing value is more than or equal to this start threshold value; Or this is pre-conditioned is that after this first adjustment, sensing value is less than or equal to this start threshold value.
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