CN105607762B - Obj State judgment method and touch device - Google Patents
Obj State judgment method and touch device Download PDFInfo
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- CN105607762B CN105607762B CN201410690481.3A CN201410690481A CN105607762B CN 105607762 B CN105607762 B CN 105607762B CN 201410690481 A CN201410690481 A CN 201410690481A CN 105607762 B CN105607762 B CN 105607762B
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Abstract
The invention discloses a kind of Obj State judgment methods, to judge that an object in the state in a sensitive surface of a touch device, includes: (a) calculating an induction length according at least contact induction amount that the object generates in the sensitive surface；(b) an object state to judge the object is distributed according to the contact induction amount of the induction length.The invention also discloses a kind of touch devices using this Obj State judgment method.The present invention can avoid the case where erroneous judgement Obj State, and can be set or be combined according to different sensitivity requirements, come more efficiently the case where avoiding erroneous judgement Obj State.
Description
Technical field
The present invention relates to technical field of touch control more particularly to Obj State judgment method and touch devices.
Background technique
In the modern life, contact control mouse gradually it is universal and substituted fall push button mouse trend.However, contact control mouse exists
The case where might have erroneous judgement finger state under certain situations.
Fig. 1 to Fig. 4 depicts the schematic diagram that finger slides on contact control mouse to contact control mouse front end in known techniques.?
In Fig. 1 to Fig. 4, the length of induction zone shown in the following figure corresponds to the finger length on the left of upper figure dotted line L, even if that is, finger F
Not in contact with sensitive surface but in sensitive surface certain distance, can also react in induction section length.In Fig. 1 to Fig. 4, sense
Area 103,203,303,403 is answered to represent the relative status of the sensitive surface 101 of finger and contact control mouse 100, when appointing for finger F
Some more close to sensitive surface 101, the part opposite of induction zone 103 just have bigger contact induction amount (such as brightness or
Capacitance variation amount).It is indicated in icon with oblique line closeer region.When sensitive surface 101 use be capacitance/resistance or
When other are in the way of the sensing for incuding matrix, it can be the set of multiple inducing pixels represented by induction zone 103, e.g. connect
Sense of touch should measure the adjacent pixel set more than a threshold value.It and is optical/infrared line or other are non-when sensitive surface 101 uses
By induction matrix but directly by contact induction amount when in the way of the sensing of coordinates computed position is removed in the distribution of different dimensions, sense
It answers and can be the two-dimentional induction amount variation calculated induction region of institute's intersection represented by area 103.That is, contact induction amount can
To be pixel quantity/induction region area of pixel set, or the corresponding influence value weighting in pixel set/induction region
Sum total/average.
In Fig. 1, the state for being intended to slide to the front end of contact control mouse 100 is presented in finger F, and finger F connects with sensitive surface 101
The part of touching only has the sub-fraction of first segment finger f1.In this case, the induction length of induction zone 103 can be shorter and first
The contact induction amount for saving 101 part of finger f1 contact induction surface and 203 front end of induction zone (corresponding first segment finger f1) can be big
Contact induction amount in rear end.And in the state of in Fig. 2, finger F is toward some distances of front slide, such first segment hand
Refer to that f1 has more parts close to sensitive surface 101.In the case, the induction length of induction zone 203 can be compared with Fig. 1 long, and feels
Answer the contact induction amount of 203 front end of area (corresponding first segment finger f1) that the contact induction amount of rear end can be greater than (oblique line is compared with Mi Chu)
And finger tip front end may not completely attach to sensitive surface 101, therefore its contact induction amount may be smaller.
And in Fig. 3, finger F puts down first segment finger f1 and the part of the second section finger f2 almost toward front slide again again
It is attached in sensitive surface 101.Therefore the induction length of induction zone 303 can be than Fig. 2 long, and because the under this state in Fig. 3
Two section finger f2 are more flattened in sensitive surface 101 compared with first segment finger f1, therefore corresponding second section of induction zone 303
The part of finger f2 has biggish contact induction amount (intermediate and rear end oblique line is compared with Mi Chu).
In Fig. 4, because the movement toward front slide is completed in finger F, first segment finger f1 may be tilted and only be left
Second section finger f2 is flattened in sensitive surface 101, therefore the front end of induction zone 403 can have lesser contact induction amount, and
The rear end (corresponding second section finger f2) of induction zone 403 can have biggish contact induction amount.
However, during Fig. 3 to Fig. 4, it is possible to create the situation of finger state erroneous judgement.It is sayed in detail, in Fig. 4,
The first segment finger f1 of finger F has left sensitive surface 101, indicates that user is not intended to generate control action.But in Fig. 4
The contact induction amount that second section finger f2 is generated accounts for biggish ratio.Therefore finger F and sensitive surface 101 contact the weight of part
The heart can shrink back, and contact control mouse 100 may make finger in the false judgment mobile toward mouse rear end.And finger is intended to from before mouse
When holding mobile toward mouse rear end, movement is with aforementioned activities on the contrary, therefore also there may be fingers during Fig. 4 to Fig. 3
The false judgment of state.
Above situation can be particularly evident when contact control mouse has curved sensitive surface, and related fields proposes induction
The relatively flat contact control mouse in surface such problems to be solved.However the contact control mouse of the flat sensitive surface of tool does not meet people relatively
Body engineering, user may feel more uncomfortable when in use.
Summary of the invention
The main purpose of the present invention is to provide a kind of Obj State judgment methods, it is intended to which solution is not kept away in the prior art
Exempt from the technical issues of judging the mechanism of Obj State by accident.
To achieve the above object, the present invention provides a kind of Obj State judgment method, to judge an object in a touch-control
A state in one sensitive surface of device, the Obj State judgment method includes: (a) according to the object in the sensitive surface
An at least contact induction amount for upper generation calculates an induction length；(b) by the induction length before at least some is distinguished into one
Section region and a middle section region；(c) a leading portion contact induction amount in the leading portion region is calculated；(d) the middle section area is calculated
The one middle section contact induction amount in domain；And (e) according to the middle section contact induction amount with the leading portion contact induction amount to judge that this is right
An object state of elephant.
Preferably, which includes according to the induction between the middle section contact induction amount and the leading portion contact induction amount
Amount ratio judges the Obj State of the object.
Preferably, which includes: the middle section contact induction amount is greater than a state relative to the leading portion contact induction amount
Critical value, then judge the object relative to the sensitive surface for non-touch-control state, if the contact induction amount ratio be less than the state
Critical value then judges the object relative to the sensitive surface for touch-control state.
Preferably, further include: if judge the object relative to the sensitive surface for non-touch-control state, be determined as it is non-touch
The object is neglected in one predetermined period of time at the time point of control state for the touch action of the sensitive surface.
Preferably, the object be a finger, the leading portion region include finger tip, the middle section region include the finger finger tip with
At least some of other outer finger joints.
Preferably, which is a capacitive touch device, wherein the contact induction amount, the leading portion contact induction amount
And the middle section contact induction amount is capacitance change, which is characterized in that the leading portion contact induction amount includes multiple capacitor senses
The set that should be measured, the middle section contact induction amount include the set of multiple capacitive sensing amounts.
Preferably, which is an optical touch-control device, wherein the contact induction amount, the leading portion contact induction amount
And the middle section contact induction amount is brightness.
Preferably, by least a part of step for being distinguished into a leading portion region and a middle section region of the induction length
Include: if the induction length is h, taking the front end xh length of the induction length as the leading portion region, and after taking leading portion region
Yh length as the middle section region, which is characterized in that the x and the y are the positive real number less than 1, and the x adds the y no more than 1.
In addition, to achieve the above object, the present invention also provides a kind of Obj State judgment method, to judge an object in
A state in one sensitive surface of one touch device, the Obj State judgment method includes: (a) according to the object in the sense
At least contact induction amount generated on surface is answered to calculate an induction length；And (b) faced according to the induction length with a state
The relationship one of boundary's length judges an object state of the object.
Preferably, which includes: if the induction length is greater than the state critical length, judging that the object is opposite
In the sensitive surface be non-touch-control state, if the contact induction amount ratio be less than the state critical length, judge the object phase
It is touch-control state for the sensitive surface.
Preferably, further include: if judge the object relative to the sensitive surface for non-touch-control state, be determined as it is non-touch
The object is neglected in one predetermined period of time at the time point of control state for the touch action of the sensitive surface.
Preferably, which is a finger.
Preferably, which is a capacitive touch device, and the contact induction amount is capacitance change, the contact
Induction amount includes the set of multiple capacitive sensing amounts.
Preferably, which is an optical touch-control device, and the contact induction amount is brightness.
In addition, to achieve the above object, the present invention also provides a kind of Obj State judgment method, to judge an object in
A state in one sensitive surface of one touch device, the Obj State judgment method includes: (a) according to the object in the sense
At least one first contact induction amount generated on surface is answered to calculate one first subject area；(b) according to the object in the induction table
At least one second contact induction amount generated on face calculates one second subject area；(c) according to first subject area and should
The position of second subject area calculates an object moving direction of the object；And (d) according to the big of first subject area
Small, second subject area size and the relationship of the object moving direction judge the Obj State of the object.
Preferably, which includes: mobile according to first subject area, second subject area and the object
The relationship in direction judges that the object relative to the sensitive surface is non-touch-control state or touch-control state.
Preferably, if first subject area is earlier generated compared with second subject area, first subject area compared with this
Two subject areas are big, and the object moving direction is then to judge the object for non-touch-control shape towards the front end of the touch device
State.
Preferably, if first subject area is earlier generated compared with second subject area, first subject area compared with this
Two subject areas are small, and the object moving direction is then to judge the object for non-touch-control shape towards the rear end of the touch device
State.
Preferably, further include: if judge the object relative to the sensitive surface for non-touch-control state, be determined as it is non-touch
The object is neglected in one predetermined period of time at the time point of control state for the touch action of the sensitive surface.
Preferably, which is a finger.
Preferably, which is the direction toward finger tip.
Preferably, which is the direction toward wrist.
Preferably, the touch device be a capacitive touch device, and the first contact induction amount and this second contact
Induction amount is capacitance change, and the first contact induction amount and the second contact induction amount separately include multiple capacitor senses
The set that should be measured.
Preferably, the touch device be an optical touch-control device, and the first contact induction amount and this second contact
Induction amount is brightness.
In addition, to achieve the above object, the present invention also provides a kind of touch devices, include: a sensitive surface；One contact sense
Computing unit should be measured, the contact induction amount generated in the sensitive surface to calculate the object；One control unit, to
According to the contact induction amount calculate one induction length, and by at least some of the induction length be distinguished into a leading portion region and
One middle section region；The contact induction amount computing unit more calculates a leading portion contact induction amount in the leading portion region and calculates
The one middle section contact induction amount in the middle section region, and the control unit is according to the middle section contact induction amount and the leading portion contact induction
An object state of the object is judged between amount.
Preferably, what which more calculated between the middle section contact induction amount and the leading portion contact induction amount one contacts
Induction amount ratio judges an object state of the object.
Preferably, if the middle section contact induction amount is greater than a state critical value, the control relative to the leading portion contact induction amount
The unit judges processed object is non-touch-control state relative to the sensitive surface, if the contact induction amount ratio is critical less than the state
Value, then the control unit judges the object relative to the sensitive surface for touch-control state.
Preferably, if the control unit judges that the object, for non-touch-control state, is being determined as relative to the sensitive surface
The object is neglected in one predetermined period of time at the time point of non-touch-control state for the touch action of the sensitive surface.
Preferably, the object be a finger, the leading portion region include finger tip, the middle section region include the finger finger tip with
At least some of other outer finger joints.
Preferably, which is a capacitive touch device, wherein the contact induction amount, the leading portion contact induction amount
And the middle section contact induction amount is capacitance change, which is characterized in that the leading portion contact induction amount includes multiple capacitor senses
The set that should be measured, the middle section contact induction amount include the set of multiple capacitive sensing amounts.
Preferably, which is an optical touch-control device, wherein the contact induction amount, the leading portion contact induction amount
And the middle section contact induction amount is brightness.
Preferably, if the induction length is h, which takes the front end xh length of the induction length as the leading portion
Region, and take the yh length behind leading portion region as the middle section region, wherein the x and y is the positive real number less than 1, and the x
Add the y no more than 1.
In addition, to achieve the above object, the present invention also provides a kind of touch devices, include: a sensitive surface；One contact sense
Computing unit should be measured, the contact induction amount generated in the sensitive surface to calculate the object；One control unit, according to
The contact induction amount calculates an induction length, and judges the object according to the relationship of the induction length and a state critical length
An object state.
Preferably, if the induction length is greater than the state critical length, which judges the object relative to the sense
Answering surface is non-touch-control state, if the contact induction amount ratio is less than the state critical length, which judges that this is right
As being touch-control state relative to the sensitive surface.
Preferably, if the control unit judges that the object, for non-touch-control state, is being determined as relative to the sensitive surface
The object is neglected in one predetermined period of time at the time point of non-touch-control state for the touch action of the sensitive surface.
Preferably, which is a finger.
Preferably, which is a capacitive touch device, and the contact induction amount is capacitance change, wherein should
Contact induction amount includes the set of multiple capacitive sensing amounts.
Preferably, which is an optical touch-control device, and the contact induction amount is brightness.
In addition, to achieve the above object, the present invention also provides a kind of touch devices, include: a sensitive surface；One contact sense
Computing unit should be measured, to calculate one first contact induction amount that the object generates in the sensitive surface and one second connect
Sense of touch should be measured；One control unit calculates the object according to the position of first subject area and second subject area
An object moving direction, and it is mobile according to the size of first subject area, the size of second subject area and the object
The relationship in direction judges the Obj State of the object.
Preferably, which judges that the object relative to the sensitive surface is that non-touch-control state or touch-control state are come
As the Obj State.
Preferably, if first subject area is earlier generated compared with second subject area, first subject area compared with this
Two subject areas are big, and the object moving direction is towards the front end of the touch device, then the control unit judges the object
For non-touch-control state.
Preferably, if the control unit judges that the object, for non-touch-control state, is being determined as relative to the sensitive surface
The object is neglected in one predetermined period of time at the time point of non-touch-control state for the touch action of the sensitive surface.
Preferably, if first subject area is earlier generated compared with second subject area, first subject area compared with this
Two subject areas are small, and the object moving direction is towards the rear end of the touch device, then the control unit judges the object
For non-touch-control state.
Preferably, which is a finger.
Preferably, which is a finger, which is the direction toward finger tip.
Preferably, which is a finger, which is the direction toward wrist.
Preferably, the touch device be a capacitive touch device, and the first contact induction amount and this second contact
Induction amount is capacitance change, and wherein the first contact induction amount and the second contact induction amount include multiple capacitive sensings
The set of amount.
Preferably, the touch device be an optical touch-control device, and the first contact induction amount and this second contact
Induction amount is brightness.
Obj State judgment method of the invention and touch device can avoid the case where erroneous judgement Obj State, Er Qieke
It is set or is combined according to different sensitivity requirements, come more efficiently the case where avoiding erroneous judgement Obj State.
Detailed description of the invention
Fig. 1 to Fig. 4 depicts the schematic diagram that finger slides on touch device to contact control mouse front end in known techniques；
Fig. 5 to Fig. 9 depicts the schematic diagram of finger state detecting method according to an embodiment of the invention；
Figure 10 to Figure 13 depicts the schematic diagram of finger state detecting method according to another embodiment of the present invention；
Figure 14 and Figure 15 depicts the schematic diagram of the finger state detecting method of another embodiment according to the present invention；
Figure 16 and Figure 17 depicts the schematic diagram of the finger state detecting method of another embodiment according to the present invention；
Figure 18 depicts the block diagram of touch device according to an embodiment of the invention；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Fig. 5 to Fig. 8 depicts the schematic diagram of Obj State judgment method according to an embodiment of the invention.Fig. 5 is into Fig. 8
The state of finger respectively corresponds Fig. 1 to Fig. 4 above-mentioned, therefore can understand Fig. 5 into Fig. 8 referring to figs. 1 to the description of Fig. 4 together
The state that finger is presented.Similarly in Fig. 5 into Fig. 8, the length of induction zone shown in the following figure corresponds on the left of upper figure dotted line L
Finger length, that is, finger F not in contact with sensitive surface in sensitive surface certain distance, can also react and incude
In section length.In this embodiment, induction zone 503,603,703,803 can be distinguished into a leading portion region Rf and a middle section area
Domain Rm.In one embodiment, leading portion region Rf include finger tip, middle section region Rm include finger tip close to other finger joints part and/
Or other finger joints of finger is at least a part of.Then can go calculate leading portion region Rf leading portion contact induction amount S_Rf and
The middle section contact induction amount S_Rm of middle section region Rm, and the ratio of two kinds of contact induction amounts is calculated, to determine the state of finger.
Above-mentioned contact induction amount can be brightness or capacitance change.
In one embodiment, when contact induction amount ratio is greater than a state critical value, then judge object relative to the sense
Answer surface be non-touch-control state, if otherwise be less than state critical value when, be judged as touch-control state.It can then be needed according to design when equal
It asks and is judged as one of touch-control state and non-touch-control state.In one embodiment, induction zone 503,603,703,803 ... is electricity
Produced by appearance formula touch-control sensing array, so the S_Rm/S_Rf of contact induction amount ratio is preferably respectively one group of capacitive sensing value
Set, wherein the leading portion contact induction amount S_Rf in contact induction amount ratio is the pixel of the affiliated pixel set of leading portion region Rf
Quantity, and middle section contact induction amount S_Rm is the pixel quantity of the affiliated pixel set of middle section region Rm.In another embodiment,
Leading portion contact induction amount S_Rf and middle section contact induction amount S_Rm can also represent the induction amount information of affiliated pixel set, such as
It can be that the induction amount sum total of all pixels of affiliated pixel set or average brightness, following embodiment connect leading portion respectively
Sense of touch should measure the average induction amount that S_Rf and middle section contact induction amount S_Rm is expressed as all pixels of affiliated pixel set, but simultaneously
It does not limit.
It is sayed in detail, in the state of Fig. 5, finger F only finger tip contacts sensitive surface 101, leading portion region Rf and middle section area
Domain Rm is all corresponding finger tip or the region close to finger tip, and whole contact induction amount is more uniform, therefore leading portion contact induction amount S_
Rf and middle section contact induction amount S_Rm are closer to, and the value of contact induction amount ratio is not too large.And under the situation of Fig. 6, leading portion
Region Rf is corresponding be finger tip and middle section region Rm it is corresponding be intermediate finger joint because the relatively intermediate finger joint of the finger tip of finger closer to
Surface 101 is sensed, the contact induction amount of leading portion region Rf is higher than the contact induction amount of middle section region Rm, therefore leading portion contact sense
S_Rf, which should be measured, to be greater than middle section contact induction amount S_Rm, and according to this in Fig. 6, the contact induction amount ratio of induction zone 603 should can
Come small than the contact induction amount ratio in Fig. 5.And under the situation of Fig. 7, leading portion region Rf corresponding is finger tip and middle section area
Domain Rm corresponding is intermediate finger joint because the intermediate finger joint of finger compared with finger tip closer to sensitive surface 101, middle section region Rm's connects
Sense of touch should measure the contact induction amount higher than leading portion region Rf, therefore the middle section contact induction amount S_Rm of induction zone 703 can compare leading portion
Contact induction amount S_Rf is greater, therefore the contact induction amount ratio of induction zone 703 has biggish value.Likewise, Fig. 8's
Under situation, leading portion region Rf is corresponding be finger tip and middle section region Rm it is corresponding be intermediate finger joint, the finger tip of finger tilts, finger
Intermediate finger joint compared with finger tip closer to sensitive surface 101, the contact induction amount of middle section region Rm is higher than the contact of leading portion region Rf
Induction amount, therefore the middle section contact induction amount S_Rm of induction zone 803 can also be greater than leading portion contact induction amount S_Rf, therefore feel
The contact induction amount ratio in area 803 is answered to have biggish value.
By the variation of Fig. 7 to Fig. 8 it is found that although finger continues forward in some cases, because the surface of mouse is
Convex surface, so the center of gravity of the contact image of finger instead may be backward (close to finger bottom).It is sayed in detail, due to calculating
When the contact position of finger, the weight for contacting image is usually sensed to calculate with the contact induction amount of the finger sensed
The heart, and represent with the center of gravity contact position of the finger, by the variation of Fig. 7 to Fig. 8 it is found that when finger continues forward but contact shadow
The center of gravity of picture but can backward, cause the detecting of the finger that can generate erroneous judgement, and the misidentification finger is just to move backward.If therefore will connect
Sense of touch should measure ratio and be set as a non-touch-control state greater than the situation of a state critical value, and be determined as non-touch-control state when
Between neglect the object for the touch action of the sensitive surface in the predetermined period of time (also can for 0) put, then can keep away
When the movement of Fig. 7 to Fig. 8 is presented in the finger F that omits, or present Fig. 8 to Fig. 7 movement when, it is possible to create erroneous judgement.So please note,
Also contact induction amount ratio can be set to (inverse), and when contact induction amount ratio is less than a state critical value, then sentenced
Disconnected object is non-touch-control state relative to the sensitive surface, otherwise when if more than state critical value, is then judged as touch-control state, this
Class can reach the variation of phase same-action, should all be within the scope of the present invention.
In one embodiment, touch device is a capacitive touch device, and the contact induction amount of induction zone, leading portion contact
Induction amount and the middle section contact induction amount are capacitance change.In another embodiment, touch device is an optical touch control
Device, contact induction amount, leading portion contact induction amount and middle section contact induction amount of induction zone are brightness.
A variety of methods can be used to define the leading portion region Rf and middle section region Rm of finger.In one embodiment, if finger
Induction length is h, takes the front end xh length of induction length as leading portion region Rf, and the yh length behind leading portion region is taken to do
For middle section region Rm, wherein x and y is the positive real number less than 1, and x adds y no more than 1.By taking Fig. 9 as an example, if the induction length of finger
It for h, takes the front end h length of induction length as leading portion region Rf, and takes the h length behind leading portion region as middle section region
Rm.There can be interval SP also can be without interval SP between leading portion region Rf and middle section region Rm.
It please notes, the embodiment of earlier figures 5 can determine whether the judgment mechanism of Fig. 5 starts as door with xh and yh.
That is, in an embodiment, it is directly that the touch-control sensed is fixed if xh and yh are less than a critical value h_tip
Justice is the touch-control of normal condition, and when xh and yh at least one are more than critical value h_tip, just start aforementioned calculating contact induction
Amount ratio is to decide whether to the mechanism for ignoring touch-control.
It please notes, embodiment above-mentioned can be used in other objects except finger and other dresses except contact control mouse
It sets, therefore the embodiment of Fig. 5 to Fig. 9 can be shown are as follows: a kind of Obj State judgment method, to judge that an object is filled in a touch-control
The state in a sensitive surface (ex.101) of (ex.100) is set, includes: (a) one generated in sensitive surface according to object
Contact induction amount calculates induction length (the induction length of ex. induction zone 503,603,703 and 803)；(b) length will be incuded
It is distinguished into a leading portion region (ex.Rf) and a middle section region (ex.Rm)；(c) leading portion contact sense in leading portion region is calculated
Ying Liang；(d) a middle section contact induction amount in the middle section region is calculated；And (e) calculate middle section contact induction amount and this before
A contact induction amount ratio between section contact induction amount is to judge an object state of object.
Figure 10 to Figure 13 depicts the schematic diagram of finger state detecting method according to another embodiment of the present invention.Figure 10 is extremely
The state of finger respectively corresponds Fig. 1 to Fig. 4 above-mentioned in Figure 13, therefore can refer to the description of Fig. 1 to Fig. 4 to understand Figure 10 to figure
The state that finger is presented in 13.In this embodiment, the induction length of finger can be detected and compared with state critical length,
And use the state for judging finger.In the embodiment of Figure 10 and Figure 11, the induction length h1 and induction zone of induction zone 1003
1103 induction length h2 is respectively less than state critical length ht, therefore can be judged as touch-control state.And in the implementation of Figure 12
In example, the induction length h3 of induction zone 1203 is greater than state critical length ht, therefore can be set into non-touch-control state.One
In embodiment, if judge the object relative to the sensitive surface for non-touch-control state, in the time for being determined as non-touch-control state
The object is neglected for the touch action of the sensitive surface in one predetermined period of time of point.As previously mentioned, the situation of erroneous judgement
During being relatively likely to occur in Figure 12 to Figure 13 (finger is slided toward contact control mouse front end), or occur in Figure 13 to Figure 12's
(finger is slided toward contact control mouse rear end) in the process, if therefore the situation of Figure 12 is set to non-touch-control shape with such mechanism
State can effectively avoid the case where judging by accident.
Under the situation of Figure 13, the induction length h4 of induction zone 1303 is possible to also be possible to small greater than state critical length ht
In state critical length ht (being greater than state critical length ht in the example of Figure 13), it is therefore possible to be determined into touch-control state
Also it is possible to be determined into non-touch-control state.By the size of setting state critical length ht can the situation of Figure 13 can be easier to
It falls in touch-control state or is easier to fall in non-touch-control state.Or the sensitivity of changeable contact control mouse induction allows the situation of Figure 13
It can be easier to fall in touch-control state or be easier to fall in non-touch-control state.For example, if sensitivity setting is larger, even if finger is remote
It is also possible to be sensed from sensitive surface, the situation of Figure 13 may have longer induction length.Opposite, if sensitivity
Setting is smaller, then finger slightly just will not be far sensed apart from sensitive surface, and the situation of Figure 13 may have shorter induction
Length.Visual various different demands set the sensitivity of state critical length ht or contact control mouse induction.The reality of Fig. 5 to Fig. 8
Applying example can be used in combination with the embodiment of Figure 10 to Figure 10 to Figure 13, to obtain more accurate judgement.
It please notes, embodiment above-mentioned can be used in other objects except finger and other dresses except contact control mouse
It sets, therefore the embodiment of Figure 10 to Figure 13 can be shown are as follows: a kind of Obj State judgment method of, to judge an object in a touching
The state in a sensitive surface of device is controlled, includes: (a) contact induction generated in the sensitive surface according to the object
Amount calculates an induction length；And the one of the object (b) is judged according to the relationship one of the induction length and a state critical length
Obj State.It also please notes, the embodiment of Figure 10 to Figure 13 can be used in combination with the embodiment of Fig. 5 to Fig. 9, so that judgement is more smart
The true situation to avoid erroneous judgement.
Other than embodiment above-mentioned, still there are other situations to may cause erroneous judgement finger state.In the example of Figure 14 and Figure 15
In son, Figure 14 depicts the finger tip pressing originally of finger F in sensitive surface 101, but because user intends to allow finger toward touch-control
The sliding of mouse rear end, therefore the movement for lifting finger F is had, in this moment due to the area of finger F pressing sensitive surface 101
It reduces so that the calculated object center of gravity of contact control mouse moves forward and finger F not yet moves backward, contact control mouse may move this
Finger F is judged by accident to be moved along.Usually, if finger F is intended to slide toward contact control mouse front end, induction zone area should be
Increased (such as Fig. 5 to Fig. 6 is again to situation of Fig. 7).Therefore, if judging, finger F is to be moved along but its induction zone area
To reduce, it is likely that such as the situation as Figure 14 and Figure 15, can will judge in one embodiment finger F be moved along but
Its induction zone area is that reduced situation predicates non-touch-control state, and is being determined as that the one of the time point of non-touch-control state makes a reservation for
The object is neglected in time cycle for the touch action of the sensitive surface.
Likewise, induction zone area should reduce (such as Fig. 7 if finger F is intended to slide toward contact control mouse rear end
To Fig. 6 again to the situation of Fig. 5).However, in Figure 16, the pressing sensitive surface 101 of user originally only slightly, therefore finger F
Caused by induction zone area it is smaller.But in Figure 17, the pressing sensitive surface 101 of user relatively firmly, therefore its finger F causes
Induction zone area it is larger, such contact control mouse may be because of calculating moving back and being judged into finger F for object center of gravity
It slides backward.Therefore, if judging, finger F is to move backward but its induction zone area is increased, it is likely that such as Figure 16 and
Situation as Figure 17 can will judge that finger F is to move backward but its induction zone area is increased situation in one embodiment
Non-touch-control state is predicated, and neglects the object pair in the predetermined period of time for being determined as the time point of non-touch-control state
In the touch action of the sensitive surface.
It so please notes, the embodiment of Figure 14 to Figure 17 is not limited to be implemented on finger and contact control mouse, can be implemented in it
On his object and touch device.Therefore the movement of Figure 14 to Figure 17 can be shown are as follows: a kind of Obj State judgment method, to judge
An object includes in the state in a sensitive surface of a touch device: (a) being generated in the sensitive surface according to object
One first contact induction amount calculating, one first subject area (such as Fig. 5 to the induction zone 503-803 of Fig. 8)；(b) existed according to object
The one second contact induction amount that generates in the sensitive surface calculates one second subject area (such as the induction zone 503- of Fig. 5 to Fig. 8
803)；(c) an object moving direction of object is calculated according to the position of the first subject area and the second subject area；And
(d) pair of the object is judged according to the relationship of the first subject area, the size of the second subject area and the object moving direction
As state.
If wherein first subject area is earlier generated compared with second subject area, first subject area is compared with this second pair
As region is big, and object moving direction is the front end direction of finger tip (or toward) towards touch device, then judges that object is
Non-touch-control state (such as embodiment of Figure 14, Figure 15).If wherein the first subject area is earlier generated compared with the second subject area, the
An object region is small compared with second subject area, and object moving direction is then to judge that this is right towards the rear end of touch device
As being non-touch-control state (or direction of past wrist).
Figure 18 depicts the block diagram of touch device according to an embodiment of the invention.As shown in figure 18, touch device
1800 contain a sensitive surface 1801, a contact induction amount computing unit 1803 and a control unit 1805.Contact induction
Contact induction amount, then control unit meeting can be generated according to the distance of object and sensitive surface 1801 by measuring computing unit 1803
Induction length is calculated, the moving condition of object is calculated or judges the state of object according to this contact induction meter.
The device of Figure 18 can be used to execute embodiment above-mentioned.For example, if embodiment to execute Fig. 5 to Fig. 8,
Then this touch device may be expressed as: a kind of touch device, include: a sensitive surface；One contact induction amount computing unit, to
Calculate the contact induction amount that the object generates in the sensitive surface；One control unit, to according to the contact induction amount
An induction length is calculated, and at least some of the induction length is distinguished into a leading portion region and a middle section region；This connects
Touching induction flowmeter calculates unit and more calculates a leading portion contact induction amount in the leading portion region and calculate the one of the middle section region
Middle section contact induction amount, and one that the control unit more calculates between the middle section contact induction amount and the leading portion contact induction amount connects
Sense of touch should measure ratio to judge an object state of the object.If to the embodiment for executing Figure 10 to Figure 13, this touch-control dress
It sets and may be expressed as: a kind of touch device, include: a sensitive surface；One contact induction amount computing unit, to calculate the object
The contact induction amount generated in the sensitive surface；One control unit calculates an induction length according to the contact induction amount, and
An object state of the object is judged according to the relationship of the induction length and a state critical length.If to execute Figure 14 to figure
17 embodiment, then this touch device may be expressed as: a kind of touch device, include: a sensitive surface；One contact induction amount calculates
Unit, to calculate the one first contact induction amount and one second contact induction that the object generates in the sensitive surface
Amount；One control unit calculates an object of the object according to the position of first subject area and second subject area
Moving direction, and according to the size of first subject area, the size of second subject area and the object moving direction
Relationship judges the Obj State of the object.
In one embodiment, touch device is a capacitive touch device, therefore various contact induction amounts above-mentioned are all
Capacitance change.In another embodiment, touch device is an optical touch-control device, and various contact induction amounts above-mentioned are bright
Degree.
Other detailed steps have been described in previous embodiment, therefore details are not described herein.
By previous embodiment, the case where can avoid erroneous judgement Obj State.And it can be according to different sensitivity requirements
Previous embodiment is set or is combined, come more efficiently the case where avoiding erroneous judgement Obj State.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of Obj State judgment method, to judge an object in the state in a sensitive surface of a touch device,
It is characterized in that, the Obj State judgment method includes step:
(a) an induction length is calculated according at least contact induction amount that the object generates in the sensitive surface；
(b) at least some of the induction length is distinguished into a leading portion region and a middle section region；
(c) the contact induction amount in the leading portion region, i.e. leading portion contact induction amount are calculated；
(d) the contact induction amount in the middle section region, i.e. middle section contact induction amount are calculated；And
(e) a pair that the object is judged according to an induction amount ratio of the middle section contact induction amount and the leading portion contact induction amount
As state.
2. Obj State judgment method as described in claim 1, which is characterized in that the step (e) includes:
The ratio of the middle section contact induction amount and the leading portion contact induction amount is greater than a state critical value, then judges that the object is opposite
In the sensitive surface be non-touch-control state；If the ratio of the middle section contact induction amount and the leading portion contact induction amount is less than the state
Critical value then judges the object relative to the sensitive surface for touch-control state.
3. Obj State judgment method as claimed in claim 2, which is characterized in that further include:
If judge the object relative to the sensitive surface for non-touch-control state, the one of the time point for being determined as non-touch-control state
The object is neglected in predetermined period of time for the touch action of the sensitive surface.
4. Obj State judgment method as described in claim 1, which is characterized in that the object is a finger, the leading portion region
Include finger tip, at least some of the middle section region comprising other finger joints other than the finger tip of the finger.
5. Obj State judgment method as described in claim 1, which is characterized in that the touch device is capacitance touching control dress
It sets, wherein the contact induction amount, the leading portion contact induction amount and the middle section contact induction amount are capacitance change, wherein should
Leading portion contact induction amount includes the set of multiple capacitive sensing amounts, which includes the collection of multiple capacitive sensing amounts
It closes.
6. Obj State judgment method as described in claim 1, which is characterized in that the touch device is optical touch control dress
It sets, wherein the contact induction amount, the leading portion contact induction amount and the middle section contact induction amount are brightness.
7. Obj State judgment method as described in claim 1, which is characterized in that by at least a part of area of the induction length
The step for being divided into a leading portion region and a middle section region includes:
If wherein the induction length is h, take the front end xh length of the induction length as the leading portion region, and take leading portion region
Yh length afterwards is as the middle section region, which is characterized in that the x and y is the positive real number less than 1, and the x adds the y to be not more than
1。
8. a kind of touch device, which is characterized in that the touch device includes:
One sensitive surface；
One contact induction amount computing unit, the contact induction amount generated in the sensitive surface to calculate object；
One control unit, to calculate an induction length according to the contact induction amount, and by at least a part of of the induction length
It is distinguished into a leading portion region and a middle section region；
The contact induction amount computing unit more calculates the contact induction amount in the leading portion region, i.e. leading portion contact induction amount, and
The contact induction amount in the middle section region, i.e. middle section contact induction amount are calculated, and the control unit is according to the middle section contact induction
An object state for measuring the contact induction amount ratio between the leading portion contact induction amount to judge the object.
9. touch device as claimed in claim 8, which is characterized in that if the middle section contact induction amount and the leading portion contact induction
The ratio of amount be greater than a state critical value, then the control unit judge the object relative to the sensitive surface for non-touch-control state,
If the ratio of the middle section contact induction amount and the leading portion contact induction amount is less than the state critical value, control unit judgement should
Object is touch-control state relative to the sensitive surface.
10. touch device as claimed in claim 9, which is characterized in that
If the control unit judges that the object, for non-touch-control state, is being determined as non-touch-control state relative to the sensitive surface
The object is neglected in one predetermined period of time at time point for the touch action of the sensitive surface.
11. touch device as claimed in claim 8, which is characterized in that the object is a finger, which includes to refer to
Point, at least some of the middle section region comprising other finger joints other than the finger tip of the finger.
12. touch device as claimed in claim 8, which is characterized in that the touch device is a capacitive touch device, wherein
The contact induction amount, the leading portion contact induction amount and the middle section contact induction amount are capacitance change, and wherein the leading portion connects
Sense of touch should measure the set comprising multiple capacitive sensing amounts, which includes the set of multiple capacitive sensing amounts.
13. touch device as claimed in claim 8, which is characterized in that the touch device is an optical touch-control device, wherein
The contact induction amount, the leading portion contact induction amount and the middle section contact induction amount are brightness.
14. touch device as claimed in claim 8, which is characterized in that if the induction length is h, which takes the sense
It answers the front end xh length of length as the leading portion region, and takes the yh length behind leading portion region as the middle section region, wherein
The x and y is the positive real number less than 1, and the x adds the y no more than 1.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810156636.3A CN108108041A (en) | 2014-11-25 | 2014-11-25 | Obj State determination methods and touch device |
| CN201410690481.3A CN105607762B (en) | 2014-11-25 | 2014-11-25 | Obj State judgment method and touch device |
| CN201810156637.8A CN108279793B (en) | 2014-11-25 | 2014-11-25 | Object state judgment method and touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690481.3A CN105607762B (en) | 2014-11-25 | 2014-11-25 | Obj State judgment method and touch device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810156636.3A Division CN108108041A (en) | 2014-11-25 | 2014-11-25 | Obj State determination methods and touch device |
| CN201810156637.8A Division CN108279793B (en) | 2014-11-25 | 2014-11-25 | Object state judgment method and touch device |
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| Publication Number | Publication Date |
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| CN105607762A CN105607762A (en) | 2016-05-25 |
| CN105607762B true CN105607762B (en) | 2019-01-04 |
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| CN201810156637.8A Active CN108279793B (en) | 2014-11-25 | 2014-11-25 | Object state judgment method and touch device |
| CN201810156636.3A Pending CN108108041A (en) | 2014-11-25 | 2014-11-25 | Obj State determination methods and touch device |
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| CN201810156636.3A Pending CN108108041A (en) | 2014-11-25 | 2014-11-25 | Obj State determination methods and touch device |
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| CN103246370A (en) * | 2012-02-01 | 2013-08-14 | 罗技欧洲公司 | System and method for spurious signal detection and compensation on an input device |
| CN103309515A (en) * | 2013-07-05 | 2013-09-18 | 沈新阳 | Method and device for realizing double-key touch mode based on length ratio of long axis and minor axis |
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| US8982051B2 (en) * | 2009-03-30 | 2015-03-17 | Microsoft Technology Licensing, Llc | Detecting touch on a surface |
| CN102193666A (en) * | 2010-03-03 | 2011-09-21 | 联咏科技股份有限公司 | Touch sensing method and system |
| CN102214059A (en) * | 2010-04-07 | 2011-10-12 | 联咏科技股份有限公司 | Touch sensing method and system using same |
| CN107665089B (en) * | 2010-08-12 | 2021-01-22 | 谷歌有限责任公司 | Finger recognition on touch screens |
| US8587539B2 (en) * | 2011-01-21 | 2013-11-19 | Blackberry Limited | Multi-bend display activation adaptation |
| US9262065B2 (en) * | 2011-02-24 | 2016-02-16 | Red Hat, Inc. | Time based touch screen input recognition |
| US20130100034A1 (en) * | 2011-10-19 | 2013-04-25 | Matthew Nicholas Papakipos | Mobile Device with Concave Shaped Back Side |
| CN103064548A (en) * | 2011-10-24 | 2013-04-24 | 联咏科技股份有限公司 | Gesture judgment method capable of filtering mistouched panel out |
| CN103853370B (en) * | 2012-12-04 | 2017-01-25 | 北京富纳特创新科技有限公司 | Touch mouse mat and application method thereof |
| CN203178935U (en) * | 2013-01-31 | 2013-09-04 | 精元电脑股份有限公司 | Touch mouse |
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- 2014-11-25 CN CN201810156637.8A patent/CN108279793B/en active Active
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103246370A (en) * | 2012-02-01 | 2013-08-14 | 罗技欧洲公司 | System and method for spurious signal detection and compensation on an input device |
| CN103309515A (en) * | 2013-07-05 | 2013-09-18 | 沈新阳 | Method and device for realizing double-key touch mode based on length ratio of long axis and minor axis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108108041A (en) | 2018-06-01 |
| CN105607762A (en) | 2016-05-25 |
| CN108279793B (en) | 2020-12-11 |
| CN108279793A (en) | 2018-07-13 |
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