CN105718076A - Active stylus and signal transmission method for active stylus and touch panel - Google Patents
Active stylus and signal transmission method for active stylus and touch panel Download PDFInfo
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- CN105718076A CN105718076A CN201410725054.4A CN201410725054A CN105718076A CN 105718076 A CN105718076 A CN 105718076A CN 201410725054 A CN201410725054 A CN 201410725054A CN 105718076 A CN105718076 A CN 105718076A
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Abstract
The invention discloses an active stylus and a signal transmission method for the active stylus and a touch panel. The active stylus comprises a touch module, a switching module, a signal comparison module, a control module and a pressure sensing module The signal transmission method for the active stylus and the touch panel comprises the steps as follows: a first signal generated by the touch panel is detected by the stylus; the stylus compares the strength of the first signal with a reference value via a first transmission path; when the strength of the first signal is greater than the reference value, the stylus outputs a second signal to the touch panel; after the stylus outputs the second signal to the touch panel, the touch panel is switched and coupled to a second transmission path from the first transmission path; the stylus outputs a header signal to the touch panel; and when the stylus detects first temporal distribution, a pressure signal is output and at least one bit in the pressure signal is output to the touch panel according to second temporal distribution.
Description
Technical field
The present invention relates to a kind of active pointer and the method for transmitting signals with contact panel thereof, particularly to a kind of active pointer with pressure-sensing, and the pressure-sensing of active shake-up pen is utilized to set the method for transmitting signals of track width value on contact panel.
Background technology
Along with the application of contact panel is more and more extensive, contact panel is also because of different user demands, and has different touch control manners.In multiple contact panel, wherein with capacitance type touch-control panel, there is the characteristic that transmittance is good, hardness is high, the response time is fast and highly sensitive, also hence in so that capacitance type touch-control panel is used widely in the technical field of touch-control.
Pattern in order to control capacitance type touch-control panel generally can be divided into two kinds at present, such as active touch-control and passive type touch-control.The input mode of passive type touch-control and device comprise to touch with finger point and tap with passive type pointer, and the input equipment of active touch-control is then as tapped with active pointer.With passive type pointer in comparison, active pointer actively exports signal and responds the technical approach of capacitance type touch-control panel so that active pointer can carry out more preferably fine operation on capacitance type touch-control panel, for instance write and drawing etc..
But, although existing active pointer can provide finer operation, but there is no the technology that pressure-sensing is provided, can make capacitance type touch-control panel energy different according to the pressure of user pen, the track of explicit different thicknesses.In view of this, it is necessary in fact to invent a kind of active pointer with pressure sensing technologies, and the signal transmission form of this kind of active pointer and capacitance type touch-control panel, with reach capacitance type touch-control panel can according to a user pressure difference, and show the person's handwriting of different thicknesses, and then active pointer is drawn on capacitance type touch-control panel and the effect write is more nearly real style of writing.
Summary of the invention
It is an object of the invention to provide a kind of active pointer with pressure sensing technologies and the method for transmitting signals between this kind of active pointer and contact panel.Contact panel is responded by active pointer, contact panel is made to produce to close the coordinate position being connected in active Pointer contacts contact panel, again by the pressure sensing technologies within active pointers, track width value is set according to this for contact panel, to reach contact panel energy according to a user pressure, the effect of display different thicknesses track.
For reaching above-mentioned purpose, the present invention provides a kind of active pointer to comprise touch-control module, handover module, signal comparison module, control module and pressure sensing module, and wherein touch-control module is in order to detect the first signal that contact panel produces.Handover module is electrically connected touch-control module, and is selectively coupled to the first transmission path or the second transmission path, with the first signal that touch-control module is detected by selection, via the first transmission path or the second transmission path.Signal comparison module transmits path via first and receives the first signal that touch-control module detects, in order to compare intensity and the reference value of the first signal.When the intensity of the first signal is more than this reference value, signal comparison module output secondary signal.When signal comparison module exports after secondary signal, handover module transmits path switching from first and is coupled to the second transmission path, produced feedback signal during to ignore signal comparison module output secondary signal.Control module and be electrically connected at touch-control module, in order to export header signal to contact panel.Header signal system is in order to provide contact panel identification active pointer.Pressure sensing module is then in order to according to the first timing distribution in the first signal, and coding pressure difference value is pressure signal, and according to the second timing distribution in the first signal, at least one bit in output pressure signal.
The present invention provides the method for transmitting signals of a kind of active pointer to have steps of.First, active pointer first detects the first signal produced by contact panel, then transmits path via first, compares intensity and the reference value of the first signal.When the intensity of the first signal is more than reference value, output secondary signal is to contact panel.After active pointer output secondary signal is to contact panel, active pointer is transmitted path switching from first and is coupled to the second transmission path, the feedback signal produced during to ignore output secondary signal.Then, active pointer exports the header signal providing the active pointer of identification again to contact panel.When active pointer detects the first timing distribution from the first signal, coding pressure difference value is the pressure signal with multiple bit.When active pointer detects the second timing distribution from the first signal, according to the second timing distribution in the first signal, in output pressure signal, at least one bit is to contact panel.
The method for transmitting signals of a kind of contact panel of the present invention has steps of.First, contact panel exports the first signal, when active pointer is responded the first signal and is exported secondary signal, and the secondary signal that contact panel exports according to active pointer, produce a coordinate position.Coordinate position closes the position being connected in active pointer with contact panel contact point, or pass is connected in contact panel and receives the position of secondary signal.Then, contact panel detects the header signal of active pointer output, with the active pointer indicated by identification header signal, confirms that the device contacted with contact panel is active pointer, to produce communications protocol with active pointer.Then, respond header signal, output meets the first signal of the first timing distribution, to require that active pointer gives pressure signal, then output meets the first signal of the second timing distribution, to receive the pressure signal coming from active pointer, wherein active pointer responds the first signal meeting the second timing distribution, with at least one bit in output pressure signal.Contact panel judges that whether the pressure signal having been received by is correct, when the pressure signal having been received by is correct, sets the track width value corresponding to pressure signal in coordinate position.
In sum, the present invention provides a kind of active pointer with pressure sensing technologies and the method for transmitting signals between this kind of active pointer and contact panel.First, contact panel is actively responded by active pointer so that contact panel senses the coordinate position of active Pointer contacts.Then, contact panel produces communication with active pointer and is connected, and the device contacted is active pointer to make contact panel confirm.Afterwards, contact panel is again with the signal of specific time sequence distribution, the signal requiring active pointer output pressure to sense, makes contact panel set the track width value of contact position, to reach contact panel according to a user effect for pressure display different thicknesses track.
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 is the block diagram of the active pointer drawn according to one embodiment of the invention；
Fig. 2 is the block diagram of the active pointer drawn according to another embodiment of the present invention；
Fig. 3 is the block diagram of the active pointer drawn according to yet another embodiment of the invention；
Fig. 4 is the flow chart of the active pointer method for transmitting signals drawn according to one embodiment of the invention；
Fig. 5 is the flow chart of the contact panel method for transmitting signals drawn according to one embodiment of the invention.
Wherein, accompanying drawing labelling
10 active pointer
11 touch-control modules
13 handover modules
15 signal comparison modules
17 control module
19 pressure sensing module
30 active pointer
31 touch-control modules
33 handover modules
35 signal comparison modules
37 control module
371 boost modules
38 signal amplification modules
39 pressure sensing module
391 capacitive pressure sensing modules
393 frequency counting modules
395 resistive pressure sensing modules
397 analog-digital converters
Detailed description of the invention
Hereinafter detailed features and the advantage of the present invention are described in embodiments in detail, its content is enough to make any relevant art of haveing the knack of understand the technology contents of the present invention and implement according to this, and content disclosed by this specification, right and accompanying drawing, any relevant art of haveing the knack of can be readily understood upon purpose and the advantage that the present invention is correlated with.It is the viewpoint further describing the present invention with purgation embodiment, but non-to limit scope of the invention anyways.
Refer to Fig. 1, Fig. 1 is the block diagram of the active pointer drawn according to one embodiment of the invention, as shown in Figure 1, a kind of active pointer 10 of the present invention has touch-control module 11, handover module 13, signal comparison module 15, controls module 17 and pressure sensing module 19, and wherein touch-control module 11 is in order to detect the first signal that contact panel produces.Touch-control module 11 can be such as nib or the nib of active pointer 10, mainly adopts such as conductive sponge, the rubber of surface applying conductive paint, electric silica gel, conductive fiber or other conductive materials to make, in order to detect first signal on contact panel surface.First signal can be contact panel energising time, in surface formed signal, for instance capacitance type touch-control panel energising time, the signal that the electric capacity in capacitance type touch-control panel is charged.In practice, the electric capacity in capacitance type touch-control panel after powered up, can be charged by capacitance type touch-control panel in order.When its inside is contacted the electric capacity charging of (or close) by capacitance type touch-control panel with touch-control module 11, touch-control module 11 will receive the signal that capacitance type touch-control panel charges for its internal capacitance, is namely considered as touch-control module 11 and the first signal detected.Touch-control module 11 according to the distance with contact panel, can detect the first signal of varying strength.
Handover module 13 is electrically connected touch-control module 11, and is selectively coupled to the first transmission path or the second transmission path, with the first signal that touch-control module 11 is detected by selection, transmits path or the second transmission path via first.Handover module 13 can be a switch element, multiplexer or other can in order to switch the element coupled, its input is coupled to touch-control module 11, in order to receive the first signal that touch-control module 11 detects, outfan is then optionally coupled to the first transmission path or the second transmission path.For example, the first transmission path can in order to transmit the first signal to signal comparison module 15, and the second transmission path can in order to transmit produced feedback signal when active pointer 10 exports signal.
Signal comparison module 15 can transmit path via first and receive the first signal that touch-control module 11 detects, in order to compare intensity and the reference value of the first signal.When the intensity of the first signal is more than this reference value, represent that active pointer 10 contacts with contact panel, or distance between the two sufficiently closes to produce display person's handwriting.Now, signal comparison module 15 will export secondary signal to contact panel, make contact panel produce a coordinate position.Secondary signal can be the reverse signal of the first signal, for example, when the first signal is for the signal of contact panel internal capacitance charging, then secondary signal is to be sent the signal of interference contact panel internal capacitance charging by active pointer 10, such as the signal allowing contact panel internal capacitance discharge.Active pointer 10 sends and the secondary signal of the first signal inversion, so that contact panel detects the change of its internal capacitance voltage, and obtains the position that active pointer 10 contacts with contact panel.Coordinate position pass is connected in contact panel and receives the position of secondary signal, also can be considered the point that active pointer 10 contacts with contact panel.After signal comparison module 15 exports secondary signal, handover module 13 will transmit path switching from first be coupled to the second transmission path, to ignore produced feedback signal when signal comparison module 15 exports secondary signal.
In one embodiment of the invention, handover module 13 has default switching frequency or switching time, in other words, after handover module 13 is coupled to the second transmission path from the first transmission path switching, through switching time one period default, handover module 13 will transmit path switching from second and be coupled to the first transmission path.Or be, when handover module 13 is with default switching frequency, after control handover module is coupled to the second transmission path from the first transmission path switching, then switch back into the first transmission path from the second transmission path.
Control module 17 and be electrically connected at touch-control module 11, in order to export header signal to contact panel.Header signal system is in order to provide contact panel identification active pointer 10.For example, header signal may indicate that the identity authentication of active pointer 10.When active pointer 10 is near to or in contact with during to contact panel, active pointer 10 will actively send header signal to contact panel, the identity authentication of the active pointer 10 indicated by contact panel foundation header signal, confirm that the device contacted with contact panel is active pointer 10, but not finger or passive type pointer, thus carry out the operator scheme corresponding to active pointer 10.Active pointer 10 sends header signal and can perform after active pointer 10 exports secondary signal to the action of contact panel again, can also being carried out (when starting to detect the first signal in active pointer) when active pointer 10 is close to contact panel, the present invention is not any limitation as.Active pointer 10 exports header signal to contact panel, the action of active pointer 10 identity authentication is confirmed by contact panel, can be considered that active pointer 10 and contact panel produce friendship and hold the communications protocol of (HandShaking), after active pointer 10 produces, with contact panel, the communications protocol that friendship is held, contact panel confirms the status of active pointer 10, just can export and require signal, require that active pointer 10 gives pressure signal, on the coordinate position of contact, set track width value for contact panel.
Pressure sensing module 19 is that coding pressure difference value is pressure signal in order to according to the first timing distribution in the first signal, and according to the second timing distribution in the first signal, at least one bit in output pressure signal.For example, pressure sensing module 19 can be coupled to touch-control module 11, and in order to sense the pressure difference value that touch-control module 11 produces, and whether the first signal detecting contact panel output the first timing distribution occurs.For square wave, first timing distribution can be multiple continuous print square wave, and pressure sensing module 19 is when receiving multiple continuous print square wave, whether the number of times that can calculate square-wave pulse rising meets reference number of times, judges whether the first signal received occurs meeting the first timing distribution according to this.When the pulse rise times that pressure-sensing signal judges the first signal meets reference number of times, being considered as detecting the first timing distribution from the first signal, now, it is pressure signal that pressure sensing module 19 encodes pressure difference value.
After pressure difference value is encoded to pressure signal by pressure sensing module 19, pressure sensing module 19 is by whether the first signal of detection contact panel output the second timing distribution occurs, and according in the second timing distribution, the signal that each pulse rises, respectively at least one bit in output pressure signal.Continue for square wave, when the signal that pressure signal is 7 bits of pressure sensing module 19 coding, contact panel can export 7 square waves as the second timing distribution, pressure sensing module 19 then can when each square-wave pulse of the second timing distribution rises, and a bit of output pressure signal is to contact panel.
The header signal of active pointer 10, except coding pressure signal, can also be merged coding together with pressure signal, be transmitted further to contact panel by pressure sensing module 19.When contact panel receives the information comprising header signal and pressure signal, contact panel can according to the header signal received when handing over and holding communications protocol, it is judged that whether the pressure signal that active pointer transmits is correct.Accordingly, when having finger to be contacted with on contact panel with active pointer 10 simultaneously, contact panel may determine that the device system of contact is finger or active pointer 10, thus setting the track width value of display track on the coordinate position of active pointer 10 contact point.
In the embodiment shown in Fig. 1, control module 17 and also can be coupled to signal comparison module 15 and pressure sensing module 19, the pressure signal of secondary signal and pressure sensing module 19 output in order to receive signal comparison module 15 output, is exported secondary signal and pressure signal to touch-control module 11 respectively by controlling module 17.But, in another embodiment, signal comparison module 15 and pressure sensing module 19 also can be coupled directly to touch-control module 11, and directly to export secondary signal and pressure signal to touch-control module 11, this is not any limitation as by the present invention.
In the embodiment shown in Fig. 1, whether above-mentioned pressure sensing module 19 identification the first signal there is the first timing distribution and the action of the second timing distribution, can also be performed by controlling module 17, and exported to pressure sensing module 19 by controlling the result that will determine that of module 17, control pressure sensing module 19 according to this and encode pressure difference value and output pressure signal.
Refer to Fig. 2 and Fig. 3, Fig. 2 is the block diagram of the active pointer drawn according to another embodiment of the present invention, Fig. 3 is the block diagram of the active pointer drawn according to yet another embodiment of the invention, as shown in the figure, active pointer 30 has touch-control module 31, handover module 33, signal comparison module 35, control module 37, signal amplification module 38, pressure sensing module 39, wherein touch-control module 31, touch-control module 11 shown in handover module 33 and signal comparison module the 35 and the 1st figure, handover module 13 and signal comparison module 15 are substantially the same, in this, it will not go into details.
Embodiment shown in Fig. 2 is discrepant with the embodiment shown in the 1st figure, and the embodiment shown in Fig. 2 more comprises signal amplification module 38.Signal amplification module 38 is coupled between touch-control module 31 and handover module 33, in order to amplify the first signal detected by touch-control module 31, and exports the first signal after amplifying to handover module 33.Signal amplifier 38 such as can receive the first signal from input Vin, and after the first signal is amplified or converted to the signal of impulse form, then from output end vo ut output to handover module.
In this embodiment, controlling module 37 and more comprise boost module 371, boost module 371 is coupled to touch-control module 31, in order to by control module 37 to transmit promoted to the signal of touch-control module 31 or voltage after export again to touch-control module 31.The mode of promotion signal can be to increase the amplitude of signal or convert a signal into pulse, and promotes the size of pulse.For example, after signal comparison module 35 compares intensity and the reference value of the first signal, output secondary signal is to controlling module 37.Control module 37 and may utilize after boost module 371 promotes secondary signal, then by secondary signal output to touch-control module 31.Signal comparison module 35 compares the intensity of the first signal and the mode of reference value, can be the magnitude of voltage in the middle of the size of the amplitude comparing the first signal, the first maximum crest of signal and minimum crest or the voltage difference of maximum crest and minimum crest, or other can compare the mode of the first signal intensity, the present invention is not any limitation as.
In the embodiment shown in Fig. 2, pressure sensing module 39 can comprise capacitive pressure sensing module 391 and frequency counting module 393.Capacitive pressure sensing module 391 is to cooperate with producing the touch-control module 31 of capacitance variations, write because of user or draw the capacitance change caused in order to sense touch-control module 31, and the variable quantity of electric capacity per second is calculated by frequency counting module 393, calculate the pressure size of pen when user is write or draws according to this, and calculated for frequency counting module 393 pressure size is changed and is encoded to pressure signal, output is given and is controlled module 37.
Another in the embodiment shown in Fig. 3, pressure sensing module 39 can also be the combination of resistive pressure sensing module 395 and analog-digital converter 397.The electric bridge that resistive pressure sensing module 395 can form for variable resistance, write because of user or draw the voltage variety caused in order to sense touch-control module 31, and by analog-digital converter 397, voltage variety is converted to pressure difference value, calculate the pressure signal used with corresponding to a pressure according to this.For example, resistive pressure sensing module 395 presets every g with a pressure corresponding to 0.05 volt of (Volt, V) voltage variety, when user uses use the pressure of 10 g, resistive pressure sensing module 395 and digital analog converter 397 will calculate the 0.5V voltage variety of correspondence.Be about 0.167 with the ratio that maximum voltage variety is 3V, 0.5V and 3V, then instruction contact panel is set track width value as 0.167 times of maximum track width by corresponding pressure signal.
Refer to the flow chart that Fig. 4, Fig. 4 are the active pointer method for transmitting signals drawn according to one embodiment of the invention, as shown in Figure 4, in step S501, active pointer first detects the first signal produced by contact panel.The first signal intensity size that active pointer detects, closes the distance being connected in active pointer with contact panel.When the distance of active pointer Yu contact panel is more near, the first signal detected by active pointer is more big.
Then, in step S503, described active pointer transmits path via first, compares intensity and the reference value of the first signal.In an embodiment, described active pointer can the first signal that further amplification detection arrives, then compare intensity and the reference value of the first signal.In this step, compare the intensity of the first signal and the distance that also can be considered the active pointer of detection and contact panel of reference value, the distance making active pointer and contact panel sufficiently closes to, or when contacting, just makes active pointer produce the transmission of signal with contact panel.
When the intensity of the first signal is more than reference value, it is considered as active pointer sufficiently close together with the distance of contact panel, therefore in step S505, output secondary signal, to contact panel, produces the coordinate position of contact point for contact panel according to the position receiving secondary signal.But, when the intensity of the first signal is not more than reference value, the distance being considered as active pointer and contact panel is insufficient to close, therefore in step S507, ignores the first signal detected.
After active pointer output secondary signal is to contact panel, in step S509, active pointer is transmitted path switching from first and is coupled to the second transmission path, the feedback signal produced during to ignore output secondary signal.For the convenient purpose that the present embodiment step S509 is described, hereby lift counter-example and illustrate.Assume when active pointer is not provided with the feedback signal that output secondary signal generation is ignored in the second transmission path, signal amplification module or the signal comparison module of active pointer will receive feedback signal, and the feedback signal received is used as the signal that contact panel provides, amplify again or compare feedback signal, then the secondary signal once caused by feedback signal is exported again, and obtain another feedback signal that output secondary signal produces, cause the signal output that cannot stop.Therefore, the present invention, when exporting secondary signal, will be transmitted path switching from first and be coupled to the second transmission path, to reach to ignore or filter the effect of feedback signal.
Then, in step S511, active pointer exports the header signal providing the active pointer of identification again to contact panel.As previously mentioned, header signal is in order to provide the status of the active pointer of contact panel identification, in this step S511, can be considered that active pointer and contact panel produce to hand over the communications protocol held, make contact panel perform the pattern for the operation of active pointer according to this.In other words, when active pointer exports header signal to contact panel, contact panel can confirm that the device of contact is active pointer, rather than the finger of passive type pointer or user, provides active pointer to set the track width value of contact point coordinate position according to this.
It follows that in step S513, when active pointer detects the first timing distribution from the first signal, coding pressure difference value is the pressure signal with multiple bit.For example, the first timing distribution can be consistent with multiple pulses rising of reference number of times.With reference number of times for three times, when active pointer detects the signal that three subpulses rise, formula is that active pointer detects the first timing distribution from the first signal, then coding pressure difference value is the pressure signal with multiple bit.The referred to user of pressure difference value does not use when using active pointer with user during active pointer, the pressure difference value of active pointer nib.In other words, when user does not use active pointer, can be pressure base value by the design of pressure of active pointer nib, when user uses active pointer write on contact panel or paint, the force value of active pointer nib deducts pressure base value, then be pressure difference value.And encode pressure difference value except the coded system common with active pointer and contact panel is except encoding pressure difference value, can also be encoded in the status of pointer active in header signal or header signal together in pressure signal simultaneously.
In step S515, when active pointer detects the second timing distribution from the first signal, according to the second timing distribution in the first signal, in output pressure signal, at least one bit is to contact panel.For example, the second timing distribution can time multiple pulses signal, described active pointer will detect the multiple pulses in the second timing distribution, according to the signal that each pulse in the second timing distribution rises, a bit in output pressure signal respectively.In other words, when the signal that pressure signal is seven bits, the second timing distribution will be seven pulses, and described active pointer when each pulse of the second timing distribution rises, will export a bit.
Refer to the flow chart that Fig. 5, Fig. 5 are the contact panel method for transmitting signals drawn according to one embodiment of the invention, as it is shown in figure 5, in step S701, contact panel exports the first signal.For capacitance type touch-control panel, when the first signal can be contact panel energising, electric field produced by surface electrode, in order to sense the capacitance change that active pointer, passive type pointer or user finger cause.
When active pointer is responded the first signal and exported secondary signal, in step S703, the secondary signal that contact panel exports according to active pointer, produce a coordinate position.Coordinate position closes the position being connected in active pointer with contact panel contact point, or pass is connected in contact panel and receives the position of secondary signal.
Then, in step S705, contact panel detects the header signal of active pointer output, with the active pointer indicated by identification header signal, confirm that the device contacted with contact panel is active pointer, thus producing to hand over the communications protocol held with active pointer.In this embodiment, after contact panel produces, with active pointer, the communications protocol that friendship is held, contact panel coordinates perform with the operator scheme controlled to the operation of active pointer.Contact panel hardware, firmware, application program or other feasible modes can coordinate active pointer to operate.
Then, in step S707, responding header signal, contact panel output meets the first signal of the first timing distribution, to require that active pointer gives pressure signal.When active pointer detects the first signal meeting the first timing distribution, by the pressure signal that coding pressure difference value is multiple bit.Then, in step S709, contact panel output meets the first signal of the second timing distribution to active pointer, in step S711, to receive the pressure signal coming from active pointer.Square-wave signal is exported with contact panel, when contact panel exports a square wave, the square-wave signal that active pointer will detect that contact panel exports, the signal just risen according to each square wave, at least one bit in output pressure signal.Contact panel, then when often exporting a square wave, receives at least one bit in pressure signal, until receiving all bits of pressure signal.
In step S713, contact panel judges pressure signal whether correct having been received by.With pressure signal for seven bits, wherein four bits can be the data bit element indicating pressure difference value, and the other three bit can be inspection bit.After contact panel exports seven square waves, contact panel will decode pressure signal, and check that whether inspection bit is correct, when checking bit correct, it is judged that the pressure signal having been received by is correct.
When the pressure signal having been received by is correct, in step S717, the coordinate position in contact panel with active Pointer contacts point sets the track width value corresponding to pressure signal.But, when the pressure signal having been received by is incorrect, in step S719, set track width value according to the front pressure signal once received.
In other embodiment of the present invention, contact panel is except after producing, with active pointer, the communications protocol that friendship is held, can actively perform to coordinate beyond the operator scheme of active pointer, user can also directly require that contact panel performs to coordinate the operator scheme of active pointer, such as user performs drawing application program, notes application program or other feasible application programs etc., active pointer is made to be able on drawing application program, pressure by user pen, with on setting touch panel, the track width value of contact point coordinate position.
Comprehensive the above, the present invention responds the first signal of contact panel by active pointer, makes contact panel sensing produce a coordinate position producing secondary signal.Then, active pointer export header signal, produce communication with contact panel and be connected, confirm that for contact panel the device of contact is active pointer.Afterwards, contact panel meets the first signal of the first timing distribution again with output, require that active pointer output pressure signal is to contact panel, with the track width value providing contact panel to set contact position according to this, reach the use pressure that contact panel energy foundation user is different, thus showing the track of different thicknesses.
Certainly; the present invention also can have other various embodiments; when without departing substantially from present invention spirit and essence thereof; those of ordinary skill in the art are when can make various corresponding change and deformation according to the present invention, but these change accordingly and deformation all should belong to the scope of the claims appended by the present invention.
Claims (10)
1. an active pointer, it is characterised in that comprise:
One touch-control module, in order to detect one first signal；
One handover module, is electrically connected this touch-control module, and selectivity couples one first transmission path or one second transmission path；
One signal comparison module, via one first signal road warp, the relatively intensity of this first signal and a reference value, and when the intensity of this first signal is more than this reference value, export a secondary signal, wherein after this signal comparison module exports this secondary signal, this handover module is coupled to this second transmission path, the feedback signal produced during to ignore and to export this secondary signal from this first transmission path switching；
One controls module, is electrically connected at this touch-control module and this signal comparison module, and in order to export a header signal, this header signal is in order to provide identification this active pointer；And
One pressure sensing module, according to one first timing distribution in this first signal, encoding a pressure difference value is a pressure signal, and according to one second timing distribution in this first signal, exports at least one bit in this pressure signal.
2. active pointer according to claim 1, it is characterized in that, after this handover module is coupled to this second transmission path from this first transmission path switching, through a Preset Time, this handover module is coupled to this first transmission path from from this second transmission path switching.
3. active pointer according to claim 1, it is characterized in that, this control module is more in order to judge whether the number of times that in this first signal, multiple pulses rise meets a reference number of times, and when the number of times that those pulses in this first signal rise meets this reference number of times, controlling this pressure sensing module, to encode this pressure difference value be this pressure signal.
4. active pointer according to claim 3, it is characterized in that, this control module is more in order to detect the multiple pulses in this second timing distribution, and when rising according to this pulse each in this second timing distribution, control this at least one bit that this pressure sensing module exports in this pressure signal.
5. the method for transmitting signals of an active pointer, it is characterised in that comprise:
Detect one first signal；
Transmit path via one first, compare intensity and a reference value of this first signal；
When the intensity of this first signal is more than this reference value, export a secondary signal；
It is coupled to one second transmission path, the feedback signal produced during to ignore and to export this secondary signal from this first transmission path switching；
Exporting a header signal, this header signal is in order to provide identification this active pointer；
When first timing distribution being detected from this first signal, encoding a pressure difference value is a pressure signal；And
According to one second timing distribution in this first signal, export at least one bit in this pressure signal.
6. the method for transmitting signals of active pointer according to claim 5, it is characterised in that when this first timing distribution being detected in this first signal of Yu Dangcong, encode in the step that this pressure difference value is this pressure signal, comprise:
Judge whether the number of times that in this first signal, multiple pulses rise meets a reference number of times；And
When the number of times that those pulses in this first signal rise meets this reference number of times, be considered as detecting this first timing distribution from this first signal, then encoding this pressure difference value is this pressure signal.
7. the method for transmitting signals of active pointer according to claim 5, it is characterised in that according to this second timing distribution in this first signal, exports in this pressure signal in the step of this at least one bit, comprises:
Detect the multiple pulses in this second timing distribution；And
When rising according to this pulse each in this second timing distribution, export this at least one bit in this pressure signal.
8. the method for transmitting signals of a contact panel, it is characterised in that comprise:
Export one first signal；
According to a secondary signal, producing a coordinate position, wherein an active pointer is according to the intensity of this first signal, to export this secondary signal；
Detecting a header signal, this header signal indicates this active pointer；
Responding this header signal, output meets this first signal of one first timing distribution；
Output meets this first signal of one second timing distribution；
Receiving the pressure signal produced from this active pointer, wherein this active pointer responds this first signal meeting this second timing distribution, to export at least one bit in this pressure signal；
Judge that whether this pressure signal having been received by is correct；And
When this pressure signal having been received by is correct, set the track width value corresponding to this pressure signal in this coordinate position.
9. the method for transmitting signals of contact panel according to claim 8, it is characterised in that export multiple pulse rise times and meet this first signal of a reference number of times, is considered as exporting this first signal meeting this first timing distribution.
10. the method for transmitting signals of contact panel according to claim 8, it is characterised in that when each pulse of this second timing distribution rises, receive this at least one bit of this pressure signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725054.4A CN105718076B (en) | 2014-12-03 | 2014-12-03 | Active stylus and its method for transmitting signals with touch panel |
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| WO2018054032A1 (en) * | 2016-09-22 | 2018-03-29 | Boe Technology Group Co., Ltd. | Touch control method for touch panel, touch panel, active stylus for touch panel, and touch display apparatus including touch panel |
| CN109416595A (en) * | 2016-07-01 | 2019-03-01 | 株式会社和冠 | The method executed by stylus, the method and double styluses that are executed by double styluses and dual controller |
| TWI656470B (en) * | 2017-05-16 | 2019-04-11 | 矽統科技股份有限公司 | Touch display system, touch display method, active pen, and touch control device |
| WO2020073327A1 (en) * | 2018-10-12 | 2020-04-16 | 深圳市柔宇科技有限公司 | Handwriting pen and input apparatus |
| CN112654952A (en) * | 2018-12-25 | 2021-04-13 | 株式会社和冠 | Input system |
| CN112764560A (en) * | 2021-01-22 | 2021-05-07 | 昆山龙腾光电股份有限公司 | Active stylus and control method |
| CN114237425A (en) * | 2021-12-21 | 2022-03-25 | 深圳市普锐高科实业有限公司 | Screen controllable method based on stylus pen |
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