CN102387252A - Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment - Google Patents
Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment Download PDFInfo
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- CN102387252A CN102387252A CN2011103068623A CN201110306862A CN102387252A CN 102387252 A CN102387252 A CN 102387252A CN 2011103068623 A CN2011103068623 A CN 2011103068623A CN 201110306862 A CN201110306862 A CN 201110306862A CN 102387252 A CN102387252 A CN 102387252A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector
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Abstract
The invention discloses and a method for preventing a touch screen from spurious triggering in a call process of handheld equipment. The method comprises the following steps of: detecting a call state of the handheld equipment; when the handheld equipment is opened to call, adjusting a sensitivity of a touch screen to be an approximate sensing sensitivity from a direct contact sensitivity, wherein the approximate sensing sensitivity is greater than the direct contact sensitivity; detecting a capacitance value of the touch screen and comparing a capacitance variation value with the approximate sensing sensitivity to obtain random pattern parameters corresponding to a touch region; comparing the random pattern parameters with pre-set parameters and locking the touch screen according to comparing results. The invention further discloses the handheld equipment. According to the invention, the method provided by the invention can be used for effectively avoiding the on-hook caused by the spurious triggering in the call process so that the design difficulty and cost of the handheld equipment is reduced.
Description
Technical field
The present invention relates to the touch screen terminal technical field, particularly relate to the method that prevents the touch-screen false triggering in a kind of handheld device and the communication process thereof.
Background technology
In recent years, touch-screen has been widely used on communication terminal and the pocket computer, the user through on touch-screen, click, operation such as paddling, can accomplish the repertoire of common keyboard, therefore, touch-screen can make man-machine interaction more simple and direct.
But in the communication process of handheld device, touch-screen and user's face or head contact and cause misoperation easily and cause dropped calls.Common solution is; Having on the handheld device of touch function all to use a proximity transducer to be used for preventing that user's communication process face from contacting the mistake on-hook that causes with touch-screen; But be to use proximity transducer not only to increase cost; And because proximity transducer need be used with the infraluminescence pipe, the size of proximity transducer chip and peripheral devices (comprising infrared transmitting tube) can not be ignored.Adding proximity transducer and infrared transmitting tube need control the transmission path of infrared light, so centre distance between the two need remain on about 4mm, will do the structure barricade between the two.Proximity transducer and infrared transmitting tube also need be placed near the receiver in addition because the transmission of light is arranged, need handheld device shell on punch, more than all outward appearance and structure Design difficulty that has increased handheld device, also increased production cost.
Therefore, needing badly provides the false touch of a kind of handheld device and touch-screen thereof to touch processing method, touches the influence that is produced to eliminate false touch.
Summary of the invention
The technical problem that the present invention mainly solves provides the method that prevents the touch-screen false triggering in a kind of handheld device and the communication process thereof, to address the above problem.
The present invention for the technical scheme that the technical solution problem adopts is: the method that prevents the touch-screen false triggering in a kind of handheld device communication process is provided; Method may further comprise the steps: a. detects the handheld device talking state; When handheld device is opened conversation; With the sensitivity of touch-screen from direct contact sensitivity adjustment near induction sensitivity, wherein, near induction sensitivity greater than directly contact sensitivity; B. the capacitance of senses touch screen, with the capacitance variations value with compare near induction sensitivity, obtain the pairing random figure parameter in touch area; C. random figure parameter and parameter preset are compared, according to comparative result locking touch-screen.
Wherein, Touch-screen is the mutual capacitance type touch-screen; In the b step,, obtain the capacitance variations value of a plurality of column electrodes and row electrode crossings through scanning to column electrode and row electrode; With a plurality of capacitance variations values and relatively big or small near induction sensitivity; Therefrom select more than or equal to the capacitance variations value near induction sensitivity, and then obtain and be worth the coordinate figure of corresponding a plurality of column electrode and row electrode crossings more than or equal to the capacitance variations near induction sensitivity, the coordinate figure through a plurality of column electrodes and row electrode crossings obtains the pairing random figure parameter in touch area.
Wherein, The parameter of the random figure that touch event produces is a location parameter; Location parameter is obtained by the coordinate figure calculating central position coordinate of a plurality of column electrodes and row electrode crossings, and parameter preset is the predeterminated position scope, and the c step further comprises location parameter and predeterminated position scope are compared; When the location parameter of random figure during in the predeterminated position scope; The locking touch-screen, wherein, the predeterminated position scope comprises that touch-screen is near the zone of the receiver of handheld device or the on-hook key zone of touch-screen.
Wherein, The parameter of the random figure that touch event produces is an area value; Area value interconnects institute's area of graph that surrounds by the coordinate figure of a plurality of column electrodes and row electrode crossings and calculates and obtain, and parameter preset is the preset area value, and the c step further comprises area value and preset area value are compared; When the area value of random figure during more than or equal to the preset area value; The locking touch-screen, wherein, the preset area value is 1.5 times the area in the on-hook key zone of the foursquare area of the length of side or touch-screen for half of the wide area that is surrounded of people's helix, touch-screen width.
Wherein, The parameter of the random figure that touch event produces is a contour feature; The profile that contour feature interconnects the figure that surrounds by the coordinate figure of a plurality of column electrodes and row electrode crossings extracts shape facility and obtains, and parameter preset is preset contour feature, and the c step further comprises contour feature and preset contour feature are compared; When the contour feature of random figure and preset contour feature are complementary; Lock said touch-screen, wherein, wide characteristic of preset contour feature behaviour helix or face ear connecting portion contour feature.
Wherein, The parameter of the random figure that touch event produces is location parameter and area value, and parameter preset is predeterminated position scope and preset area value, at the location parameter of random figure in the predeterminated position scope; And the area value of random figure is during more than or equal to the preset area value, the locking touch-screen.
Wherein, The parameter of the random figure that touch event produces is location parameter and profile parameters; Parameter preset is predeterminated position scope and preset graph outline; In the predeterminated position scope, and the profile parameters of random figure and preset graph outline be when being complementary, the locking touch-screen at the location parameter of random figure.
Wherein, behind the locking touch-screen, continue to carry out the b step, when the random figure parameter exists, continue to carry out the c step, when the random figure parameter be sky, the release touch-screen was also carried out a step.
Wherein, when the handheld device end of conversation, the release touch-screen, with the sensitivity of touch-screen from adjust to direct contact sensitivity near induction sensitivity.
The present invention for the another one technical scheme that the technical solution problem adopts is: a kind of handheld device is provided; Comprise: BBP and touch-screen, touch-screen comprises chip for driving, BBP controlling and driving chip detection handheld device talking state; When handheld device is opened conversation; With the sensitivity of touch-screen from direct contact sensitivity adjustment near induction sensitivity, wherein, near induction sensitivity greater than directly contact sensitivity; Touch-screen detects the capacitance variations value, with the capacitance variations value with compare near induction sensitivity, obtain the pairing random figure parameter in touch area; BBP compares random figure parameter and parameter preset, according to comparative result locking touch-screen.
Wherein, Touch-screen also comprises touch pad; Chip for driving is passed through the scanning to the column electrode and the row electrode of touch pad, obtains the capacitance variations value of a plurality of column electrodes and row electrode crossings, compares with a plurality of capacitance variations values and near induction sensitivity; Obtain being worth more than or equal to the capacitance variations near induction sensitivity the coordinate figure of pairing a plurality of column electrode and row electrode crossings, the coordinate figure through a plurality of column electrodes and row electrode crossings obtains the pairing random figure parameter in touch area.
The invention has the beneficial effects as follows: be different from prior art; The method that prevents the touch-screen false triggering in handheld device provided by the invention and the communication process thereof through with the sensitivity of touch-screen from direct contact sensitivity adjustment near induction sensitivity; Touch screen induction to induction region near; Realization is avoided false triggering on-hook in the communication process to the locking of touch-screen, has reduced the design difficulty and the cost of handheld device.
Description of drawings
Fig. 1 is the flow chart that prevents the method for touch-screen false triggering in the handheld device communication process of one preferred embodiment according to the present invention.
Fig. 2 is the handheld device electrical block diagram of one preferred embodiment according to the present invention.
Embodiment
See also Fig. 1, Fig. 1 is the flow chart that prevents the method for touch-screen false triggering in the handheld device communication process of one preferred embodiment according to the present invention.As shown in Figure 1, in the present embodiment, prevent in the handheld device communication process that the method for touch-screen false triggering from may further comprise the steps:
Step 101 detects the handheld device talking state, when handheld device is opened conversation, with the sensitivity of touch-screen from direct contact sensitivity adjustment near induction sensitivity, wherein, near induction sensitivity greater than directly contacting sensitivity;
Step 102, the capacitance of senses touch screen, with the capacitance variations value with compare near induction sensitivity, obtain the pairing random figure parameter in touch area;
Step 103 compares random figure parameter and parameter preset, according to comparative result locking touch-screen.
Wherein, In 102 steps; Through scanning to column electrode and row electrode; Obtain the capacitance variations value of a plurality of column electrodes and row electrode crossings, a plurality of capacitance variations values with relatively big or small near induction sensitivity, are therefrom selected more than or equal to the capacitance variations value near induction sensitivity; And then obtain and be worth the coordinate figure of corresponding a plurality of column electrode and row electrode crossings more than or equal to the capacitance variations near induction sensitivity, the coordinate figure through a plurality of column electrodes and row electrode crossings obtains the pairing random figure parameter in touch area.
After locking touch-screen, continue to carry out 102 steps, when the random figure parameter exists, continue to carry out 103 steps, when the random figure parameter was sky, the release touch-screen was also carried out 101 steps.When the handheld device end of conversation, the release touch-screen, with the sensitivity of touch-screen from adjust to direct contact sensitivity near induction sensitivity.
Can obtain through the testing touch screen of different handheld devices near induction sensitivity, for example, usually touch-screen do not have induction region near state under; Electric capacity between the electrode signal line of two intersections of same test point is approximately 1～2pf; During the induction region contact, the about 0.3pf of capacitance variations value (being directly contact sensitivity) is if through test; Induction region is the about 0.2pf of capacitance variations value during apart from 2 centimetres of touch-screens, and promptly can set near induction sensitivity is 0.2pf.Sensitivity near induction can be set according to the approaching actual needs of using that detects, for example, can establish near about 2 centimetres of detection distance, 3 centimetres or the like.
In an embodiment of the present invention; The parameter of the random figure that touch event produces is a location parameter; Location parameter is obtained by the coordinate figure calculating central position coordinate of a plurality of column electrodes and row electrode crossings, and parameter preset is the predeterminated position scope, and 103 steps further comprise location parameter and predeterminated position scope are compared; When the location parameter of random figure during in the predeterminated position scope; The locking touch-screen, wherein, the predeterminated position scope comprises that touch-screen is near the zone of the receiver of handheld device or the on-hook key zone of touch-screen.
In addition; The embodiment that other can also be arranged, the parameter of the random figure that touch event produces is an area value, area value interconnects the institute's area of graph that surrounds calculating acquisition by the coordinate figure of a plurality of column electrodes and row electrode crossings; Parameter preset is the preset area value; 103 steps further comprise area value and preset area value are compared, when the area value of random figure during more than or equal to the preset area value, and the locking touch-screen; Wherein, the preset area value is that the half the of the wide area that is surrounded of people's helix, touch-screen width is 1.5 times the area in the on-hook key zone of the foursquare area of the length of side or touch-screen.
The parameter of the random figure that touch event produces is a contour feature; Contour feature is interconnected the profile extraction shape facility acquisition of the figure that surrounds by the coordinate figure of a plurality of column electrodes and row electrode crossings; Parameter preset is preset contour feature; 103 steps further comprise contour feature and preset contour feature are compared, when the contour feature of random figure and preset contour feature are complementary, and the locking touch-screen; Wherein, wide characteristic of preset contour feature behaviour helix or face ear connecting portion contour feature.
The parameter of the random figure that touch event produces is location parameter and area value; Parameter preset is predeterminated position scope and preset area value; In the predeterminated position scope, and the area value of random figure is during more than or equal to the preset area value, the locking touch-screen at the location parameter of random figure.
The parameter of the random figure that touch event produces is location parameter and profile parameters; Parameter preset is predeterminated position scope and preset graph outline; At the location parameter of random figure in the predeterminated position scope; And when the profile parameters of random figure and preset graph outline are complementary, the locking touch-screen.
Please consult Fig. 2 again, Fig. 2 is the handheld device electrical block diagram of one preferred embodiment according to the present invention.As shown in Figure 2, in the present embodiment, handheld device 20 comprises BBP 22 and touch-screen 24, and the two interconnects.
Touch-screen 24 comprises chip for driving 240 and touch pad 242; Touch action produces on touch pad 242; BBP 22 controlling and driving chips 240 detect the handheld device talking states, when handheld device is opened conversation, with the sensitivity of stating touch-screen 24 from direct contact sensitivity adjustment near induction sensitivity; Wherein, near induction sensitivity greater than directly the contact sensitivity; Touch-screen 24 detects the capacitance variations values, with the capacitance variations value with compare near induction sensitivity, obtain the pairing random figure parameter in touch area; BBP 22 compares random figure parameter and parameter preset, according to comparative result locking touch-screen 24.
Wherein, The scanning that chip for driving 240 is passed through the column electrode and the row electrode of touch pad 242; Obtain the capacitance variations value of a plurality of column electrodes and row electrode crossings; With a plurality of capacitance variations values with near induction sensitivity relatively, obtain being worth the coordinate figure of pairing a plurality of column electrode and row electrode crossings more than or equal to capacitance variations near induction sensitivity, the coordinate figure through a plurality of column electrodes and row electrode crossings obtains the pairing random figure parameter in touch area.
It should be noted that the technical scheme that the present invention discloses is particularly useful for capacitive touch screen.
Therefore; Through above scheme; The method that prevents the touch-screen false triggering in handheld device provided by the invention and the communication process thereof through with the sensitivity of touch-screen from direct contact sensitivity adjustment near induction sensitivity, touch screen induction to induction region near, realization is to the locking of touch-screen; Avoid false triggering on-hook in the communication process, reduced the design difficulty and the cost of handheld device.
More than be merely embodiments of the invention; Be not so limit patent area of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the patent protection area of the present invention.
Claims (11)
1. prevent the method for touch-screen false triggering in the handheld device communication process, it is characterized in that, said method comprising the steps of:
A. detect the handheld device talking state, when said handheld device is opened conversation, with the sensitivity of said touch-screen from direct contact sensitivity adjustment near induction sensitivity, wherein, said near induction sensitivity greater than said direct contact sensitivity;
B. detect the capacitance variations value of said touch-screen, said capacitance variations value is compared near induction sensitivity with said, obtain the pairing random figure parameter in touch area;
C. said random figure parameter and parameter preset are compared, lock said touch-screen according to comparative result.
2. method according to claim 1; It is characterized in that; Said touch-screen is the mutual capacitance type touch-screen; In said b step,, obtain the said capacitance variations value of a plurality of said column electrodes and said row electrode crossings through scanning to column electrode and row electrode; With a plurality of said capacitance variations values and said relatively big or small near induction sensitivity; Therefrom select more than or equal to said said capacitance variations value near induction sensitivity, and then obtain and be worth the coordinate figure of corresponding a plurality of said column electrode and said row electrode crossings more than or equal to said said capacitance variations near induction sensitivity, the coordinate figure through a plurality of said column electrodes and said row electrode crossings obtains the pairing said random figure parameter in said touch area.
3. method according to claim 2; It is characterized in that the parameter of the random figure that said touch event produces is a location parameter, said location parameter is obtained by the coordinate figure calculating central position coordinate of a plurality of said column electrodes and said row electrode crossings; Said parameter preset is the predeterminated position scope; Said c step further comprises said location parameter and said predeterminated position scope compared, and when the location parameter of said random figure during in said predeterminated position scope, locks said touch-screen; Wherein, said predeterminated position scope comprises that said touch-screen is near the zone of the receiver of said handheld device or the on-hook key zone of said touch-screen.
4. method according to claim 2; It is characterized in that; The parameter of the random figure that said touch event produces is an area value; Said area value interconnects institute's area of graph that surrounds by the coordinate figure of a plurality of said column electrodes and said row electrode crossings and calculates and obtain, and said parameter preset is the preset area value, and said c step further comprises said area value and said preset area value are compared; When the area value of said random figure during more than or equal to said preset area value; Lock said touch-screen, wherein, said preset area value is that the half the of the wide area that is surrounded of people's helix, said touch-screen width is the foursquare area of the length of side or the 1.5 times regional area of on-hook key of said touch-screen.
5. method according to claim 2; It is characterized in that the parameter of the random figure that said touch event produces is a contour feature, said contour feature is interconnected the profile extraction shape facility acquisition of the figure that surrounds by the coordinate figure of a plurality of said column electrodes and said row electrode crossings; Said parameter preset is preset contour feature; Said c step further comprises said contour feature and said preset contour feature compared, and when the contour feature of said random figure and said preset contour feature are complementary, locks said touch-screen; Wherein, wide characteristic of said preset contour feature behaviour helix or face ear connecting portion contour feature.
6. method according to claim 1; It is characterized in that; The parameter of the random figure that said touch event produces is location parameter and area value, and said parameter preset is predeterminated position scope and preset area value, at the location parameter of said random figure in said predeterminated position scope; And the area value of said random figure locks said touch-screen during more than or equal to said preset area value.
7. method according to claim 1; It is characterized in that; The parameter of the random figure that said touch event produces is location parameter and profile parameters, and said parameter preset is predeterminated position scope and preset graph outline, at the location parameter of said random figure in said predeterminated position scope; And when the profile parameters of said random figure and said preset graph outline are complementary, lock said touch-screen.
8. method according to claim 1 is characterized in that, lock said touch-screen after; Continue to carry out said b step, when said random figure parameter exists, continue to carry out said c step; When said random figure parameter was sky, the said touch-screen of release was also carried out said a step.
9. method according to claim 1 is characterized in that, said method further may further comprise the steps:
When said handheld device end of conversation, the said touch-screen of release, with the sensitivity of said touch-screen from adjust to direct contact sensitivity near induction sensitivity.
10. a handheld device is characterized in that, comprising: BBP and touch-screen; Said touch-screen comprises chip for driving; Said BBP is controlled said chip for driving and is detected the handheld device talking state, when said handheld device is opened conversation, with the sensitivity of said touch-screen from direct contact sensitivity adjustment near induction sensitivity; Wherein, said near induction sensitivity greater than said direct contact sensitivity; Said touch-screen detects the capacitance variations value, and said capacitance variations value is compared near induction sensitivity with said, obtains the pairing random figure parameter in touch area; Said BBP compares said random figure parameter and parameter preset, locks said touch-screen according to comparative result.
11. handheld device according to claim 10; It is characterized in that; Said touch-screen also comprises touch pad; Said chip for driving is passed through the scanning to the column electrode and the row electrode of said touch pad, obtains the capacitance variations value of a plurality of said column electrodes and said row electrode crossings, with a plurality of said capacitance variations values and said near the induction sensitivity comparison; Obtain being worth more than or equal to said said capacitance variations near induction sensitivity the coordinate figure of pairing a plurality of said column electrode and said row electrode crossings, the coordinate figure through a plurality of said column electrodes and said row electrode crossings obtains the pairing said random figure parameter in said touch area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103068623A CN102387252A (en) | 2011-10-11 | 2011-10-11 | Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment |
| PCT/CN2012/080982 WO2013053272A1 (en) | 2011-10-11 | 2012-09-05 | Handheld device and method thereof for preventing false triggering of touch screen during call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103068623A CN102387252A (en) | 2011-10-11 | 2011-10-11 | Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment |
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| CN102387252A true CN102387252A (en) | 2012-03-21 |
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| CN2011103068623A Pending CN102387252A (en) | 2011-10-11 | 2011-10-11 | Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment |
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| WO (1) | WO2013053272A1 (en) |
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