CN102375534A - Electronic device and related control method thereof - Google Patents
Electronic device and related control method thereof Download PDFInfo
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- CN102375534A CN102375534A CN2010102606060A CN201010260606A CN102375534A CN 102375534 A CN102375534 A CN 102375534A CN 2010102606060 A CN2010102606060 A CN 2010102606060A CN 201010260606 A CN201010260606 A CN 201010260606A CN 102375534 A CN102375534 A CN 102375534A
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Abstract
The invention discloses an electronic device and a related control method thereof. The electronic device comprises a sensing unit, a charging and discharging circuit and a processing circuit. The processing circuit comprises a control unit, a detection unit, a judging unit and an executing unit. The control unit provides periodical pulse to the sensing unit and the charging and discharging circuit, so as to periodically charge and discharge according to the periodical pulse and outputting a sensing voltage. The sensing unit detects the sensing voltage and determines a charging time according to the sensing voltage, wherein the charging time is the time required by the sensing volute to reach a preset voltage. The judging unit determines if to trigger an interrupt request according to the charging time. When receiving the interruption request, the execution unit can execute a specific application function.
Description
Technical field
The present invention relates to a kind of electronic installation and corresponding control methods thereof; Relate in particular to and a kind of a sensing cell near voice output (for example is arranged on; Loudspeaker or receiver) the position come sensing whether to receive the user to touch the electric capacitance change of being brought, use the electronic installation and the corresponding control methods thereof that replace contiguous sensor originally.
Background technology
In various consumption electronic products market now, portable electric devices such as PDA(Personal Digital Assistant), mobile phone (mobile Phone) and the PDA mobile phone interface tool that contact panel (touch panel) is linked up as its data that has been widely used all.Yet with regard to mobile phone, when the user used mobile phone to converse, regular meeting caused the touch controllable function of accident touch on touch control panel because of the too close contact panel of people's ear or people's face.Thus, regular meeting causes user's puzzlement because of the false touch action.
In order to reduce the user because puzzlement that false touch caused; At present on the market portable electric device can utilize a contiguous sensor (proximity sensor) to detect the distance of objects such as portable electric device and people's ear, people's face usually, reaches the button effect and closes relevant control function such as contact panel and/or display panel be backlight automatically to carry out.Yet contiguous at present sensor has the too small problem of sensing range technically, so many restrictions are arranged on the position of putting.In addition, contiguous sensor is an optical element, and the essential printing opacity in its surface is so the color of overlay (cover plate) needs to consider especially that this can make that the colour planning of panel of mobile phone is inconsistent and have influence on attractive in appearance.Moreover the unit price of contiguous sensor is high, for manufacturer, will cause the burden on the manufacturing cost.
Therefore, how promoting convenience, the increase more additional function of portable electric device of portable electric device and save cost, also is one of the important topic in the design field.
Summary of the invention
Therefore, one of the object of the invention is to propose a kind of electronic installation and corresponding control methods thereof, to solve the above problems.
Therefore, one of the object of the invention is to propose a kind of electronic installation, and it utilizes sensing cell arrange in pairs or groups simple charge-discharge circuit and treatment circuit, replaces contiguous sensor originally to reach the screen closing function.
The present invention discloses a kind of electronic installation, includes: sensing cell, charge-discharge circuit and treatment circuit.Whether sensing cell receives touching of an object in order to sensing.Charge-discharge circuit is coupled to sensing cell, and wherein charge-discharge circuit and sensing cell carry out periodically charge and discharge according to the pulse of one-period property, and exports a sensing voltage.Treatment circuit is coupled to sensing cell and charge-discharge circuit, and treatment circuit includes control module, detecting unit, judging unit and performance element.Control module provides these recurrent pulses to sensing cell and charge-discharge circuit.Detecting unit is used for detecting sensing voltage, and decides a duration of charging according to sensing voltage, and wherein the duration of charging is the time that sensing voltage arrives a predetermined voltage.Judging unit is coupled to detecting unit, is used for determining whether triggering an interrupt request according to the duration of charging.Performance element is coupled to judging unit, is used for when receiving interrupt request, carries out an application specific functionality.
The present invention discloses a kind of method of pattern of control one electronic installation in addition, and this electronic installation includes a sensing cell that touches and a charge-discharge circuit that whether receives an object in order to sensing.This method includes following steps: provide the pulse of one-period property to this sensing cell and this charge-discharge circuit; Come charge-discharge circuit and this sensing cell are carried out periodically charge and discharge according to these recurrent pulses, to export a sensing voltage; Detect this sensing voltage, and decide a duration of charging, wherein should arrive the time of a predetermined voltage duration of charging for this sensing voltage according to this sensing voltage; Determine whether triggering an interrupt request according to this duration of charging; And when receiving this interrupt request, carry out an application specific functionality.
Description of drawings
Fig. 1 is the synoptic diagram of first embodiment of electronic installation of the present invention.
Fig. 2 is the synoptic diagram of second embodiment of electronic installation of the present invention.
Fig. 3 is the functional block diagram of one of Fig. 1 or electronic installation shown in Figure 2 exemplary embodiment.
Fig. 4 is the signal waveforms of the detected sensing voltage of detecting unit shown in Figure 3 in discharge regime and in the charging stage (comprise do not receive the user touch and receive under the situation that the user touches).
Fig. 5 controls the process flow diagram of an example operation of method of the pattern of an electronic installation for the present invention.
[main element symbol description]
100,200 electronic installations
110 sensing cells
120,220 overlays
130,230 shells
140 voice outputs
132 spatial accommodations
222 potholes
DA1, DA2 specific region
310 charge-discharge circuits
320 treatment circuits
330 control modules
340 detecting units
350 judging units
360 performance elements
The Ccharge charging capacitor
The Cvir simulated capacitance
The Spp recurrent pulses
The Vs sensing voltage
The tc duration of charging
The TH critical value
The INT interrupt request
The AP application specific functionality
S1, S2, S3 curve
V
DPredetermined voltage
T1, t2 time
500～522 steps
Embodiment
Please refer to Fig. 1, Fig. 1 is the synoptic diagram of first embodiment of electronic installation 100 of the present invention.As shown in Figure 1; Electronic installation 100 includes a sensing cell 110, an overlay (cover plate) 120, one shell (housing) 130 and a voice output 140; Wherein voice output 140 is used for exporting an audio signals; Can realize that overlay 120 then is arranged on the display panel of electronic installation 100 or the outermost layer of contact panel (scheming not shown), is used for protecting electronic installation 100 by a loudspeaker or a receiver (receiver).In the present embodiment; Shell 130 has a spatial accommodation 132 and holds voice output 140, and sensing cell 110 is by a conductive layer, for example; One sheet metal (as: copper foil) or a conductive material layer come practical operation; And this conductive layer can attach or embedded mode is arranged on the specific region DA1 of inside surface of shell 130, and specific region DA1 next-door neighbour spatial accommodation 132, and is as shown in Figure 1.Thus, just the mode that sensing cell 110 can be through direct contact or the mode of induction indirectly come sensing whether to receive a user, like touching of: conduction objects such as people's ear, people's face.
Please refer to Fig. 2, Fig. 2 is the synoptic diagram of second embodiment of electronic installation 200 of the present invention.In the present embodiment, electronic installation 200 includes a sensing cell 110, an overlay 220, a shell 230 and a voice output 140.The framework of the electronic installation 200 among Fig. 2 and electronic installation 100 shown in Figure 1 are similar; Both differences are that the overlay 220 of electronic installation 200 has a pothole 222 and holds voice output 140 to form a spatial accommodation; And sensing cell 110 is also by a conductive layer; For example, a sheet metal (as: copper foil) or a conductive material layer come practical operation, but this conductive layer can attach or embedded mode is arranged on the specific region DA2 of inside surface of overlay 220; And specific region DA2 is close to pothole 222, and is as shown in Figure 2.In addition, because sensing cell 110 is not to be optical element, therefore can meet demand attractive in appearance in the hope of the surface color design unanimity of electronic installation 200 in that the coloured material of coating one deck on the specific region DA2 of sensing cell 110 is being set.Thus, just the mode that sensing cell 110 can be through direct contact or the mode of induction indirectly come sensing whether to receive a user, like touching of: conduction objects such as people's ear, people's face.
Can learn by Fig. 1 and Fig. 2; Does not limit to the position that is provided with of sensing cell 110; To answer the position at place near people's ear preferable but to be arranged on; That is with near the putting position of voice output 140 to the optimal setting positions (for example, specific region DA1, DA2) that extends to sensing cell 110 all around.In addition, the size of sensing cell 110 and shape are not restrictive condition of the present invention.
Please in the lump with reference to figure 3 and Fig. 1 (perhaps Fig. 2), Fig. 3 is the functional block diagram of an exemplary embodiment of Fig. 1 or electronic installation 100/200 shown in Figure 2.As shown in Figure 3, electronic installation 100/200 includes (but being not limited to) sensing cell 110, a charge-discharge circuit 310 and a treatment circuit 320.Charge-discharge circuit 310 is coupled to sensing cell 110, and wherein charge-discharge circuit 310 and sensing cell 110 carry out periodically charge and discharge according to one-period property pulse (periodic pulse) Spp, and export a sensing voltage Vs.Treatment circuit 320 is coupled to sensing cell 110 and charge-discharge circuit 310, and treatment circuit 320 includes control module 330, detecting unit 340, judging unit 350 and performance element 360.Wherein, control module 330 provides recurrent pulses Spp to sensing cell 110 and charge-discharge circuit 310.340 of detecting units are used for detecting sensing voltage Vs, and decide a duration of charging tc according to sensing voltage Vs, and the duration of charging tc here means that sensing voltage Vs arrives a predetermined voltage V
D(for example, 5 volts) the needed time.350 of judging units are coupled to detecting unit 340, are used for determining whether triggering an interrupt request INT according to duration of charging tc.At last, performance element 360 is coupled to judging unit 350, is used for when receiving interrupt request INT, carries out an application specific functionality AP.
In the present embodiment, charge-discharge circuit 310 is realized by a charging capacitor Ccharge, but the present invention is not limited thereto.In other embodiment, also can adopt the charging capacitor resistive element of arranging in pairs or groups to realize charge-discharge circuit 310.Knowing this art should understand, and under the situation of spirit of the present invention, the various variations of the element of charge-discharge circuit 310 all are feasible.
Please note; Above-mentioned electronic installation 100/200 can be a mobile phone (mobile phone), a personal digital assistant (personal digital assistant; PDA), a PDA-phone (PDA phone), an intelligent mobile phone (smart phone); But the present invention is not limited thereto, also can be the electronic apparatus of other kind.In addition, above-mentioned treatment circuit 320 can be realized by a CPU or a microprocessor, and the GPIO pin of can arranging in pairs or groups receives and detect sensing voltage Vs, but the present invention is not limited thereto.Moreover; Above-mentioned application specific functionality AP can be a contact panel and/or display panel closing function or its relevant control function backlight; So knowing this art should understand, and the various variations of application specific functionality AP all are feasible, visual actual demand and designing.
It should be noted that sensing cell 110 has a simulated capacitance Cvir, when sensing cell 110 does not receive a user when touching, the simulated capacitance Cvir of sensing cell 110 has one first electric capacity C1; And receiving a user when touching when sensing cell 110, simulated capacitance Cvir has one second electric capacity C2, and the second electric capacity C2 that is to say that greater than the first electric capacity C1 electric capacity of simulated capacitance Cvir can change.In other words, when sensing cell 110 does not receive a user when touching, the equivalent electric capacity that this moment, charge-discharge circuit 310 and sensing cell 110 were constituted can equal Ccharge+C1; And receiving a user when touching when sensing cell 110, the equivalent electric capacity that this moment, charge-discharge circuit 310 and sensing cell 110 were constituted can equal Ccharge+C2 (and C2＞C1).Because the equivalent electric capacity has changed, then sensing voltage Vs arrives predetermined voltage V
DNeeded duration of charging tc also can change, so judging unit 350 just can judge whether sensing cell 110 receives a user and touch through the size of duration of charging tc, whether will trigger interrupt request INT with decision.
Please in the lump with reference to figure 4 and Fig. 3, Fig. 4 is the signal waveforms of the detected sensing voltage Vs of detecting unit 340 shown in Figure 3 in discharge regime and in the charging stage (comprise do not receive the user touch and receive under the situation that the user touches).At first, carry out an initialization action earlier, therefore in discharge regime, the conductive layer with sensing cell 110 drains electric charge through discharge path earlier, shown in first curve S 1 among Fig. 4.Then; Charging stage will divide two kinds of situation to describe: under the situation that user's ear or people's face do not touch the sensing cell 110 on the electronic installation 100/200 (that is; Not receiving the user touches); Because control module 330 can provide recurrent pulses Spp to sensing cell 110 and charge-discharge circuit 310; Make it carry out periodically charge and discharge, and the equivalent electric capacity system that this moment, charge-discharge circuit 310 and sensing cell 110 were constituted equals Ccharge+C1, thus detecting unit 340 detected sensing voltage Vs can be within a period of time t1 just charging arrive predetermined potential V
D, shown in second curve S 2 among Fig. 4.And under the situation that user's ear or people's face touches the sensing cell 110 on the electronic installation 100/200 (that is; Receiving the user touches); Can change equivalent electric capacity that charge-discharge circuit 310 and sensing cell 110 constituted because of user's ear or touching of people's face (at this moment; The equivalent electric capacity equals Ccharge+C2), therefore will change sensing voltage Vs and arrive predetermined voltage V
DDuration of charging tc.Thus, detecting unit 340 detected sensing voltage Vs just need can charge after t2 after a while and arrive predetermined potential V
D, shown in the 3rd curve S 3 among Fig. 4.
In brief, do not touch under the situation of the sensing cell 110 on the electronic installation 100/200 at user's ear or people's face, detecting unit 340 detected sensing voltage Vs can be within a period of time t1 just charging arrive predetermined potential V
DJudging unit 350 this moment (can be realized by a comparer) can compare a duration of charging tc and a critical value TH; Because duration of charging tc is not more than critical value TH (tc=t1＜TH); Therefore judging unit 350 can't trigger interrupt request INT, and this moment, performance element 360 can't be carried out application specific functionality AP; And touch under the situation of the sensing cell 110 on the electronic installation 100/200 at user's ear or people's face, detecting unit 340 detected sensing voltage Vs can just can charge after a period of time t2 and arrive predetermined potential V
DThis moment, judging unit 350 can compare duration of charging tc and critical value TH equally; (tc=t2＞TH), so judging unit 350 can trigger interrupt request INT, then performance element 360 can be carried out application specific functionality AP because duration of charging tc is greater than critical value TH.Thus; Electronic installation 100/200 sensing cell 110 simple charge-discharge circuit 310 of collocation and treatment circuits 320 just capable of using; Reach close contact panel automatically and/or display panel backlight (that is; Execution application specific functionality AP) purpose, and and then promote the additional function of electronic installation 100/200 and bring the user more convenience.
Please refer to Fig. 5, Fig. 5 controls the process flow diagram of an example operation of method of the pattern of an electronic installation for the present invention, and this electronic installation includes a sensing cell and a charge-discharge circuit.This method comprises following step (if note that and can obtain roughly the same result, then the following step and non-limiting will the execution according to order shown in Figure 5):
Step 500: beginning.
Step 502: provide the pulse of one-period property to this sensing cell and this charge-discharge circuit.
Step 504: come charge-discharge circuit and this sensing cell are carried out periodically charge and discharge according to these recurrent pulses, to export a sensing voltage.
Step 506: detect this sensing voltage, and decide a duration of charging, wherein should arrive the time of a predetermined voltage duration of charging for this sensing voltage according to this sensing voltage.
Step 508: determine whether triggering an interrupt request according to this duration of charging.When duration of charging during greater than this critical value, execution in step 520; Otherwise, execution in step 510.
Step 510: do not trigger interrupt request.
Step 520: trigger interrupt request.
Step 522: when receiving this interrupt request, carry out an application specific functionality.
About each step shown in Figure 5 please arrange in pairs or groups Fig. 1 (or Fig. 2), each element shown in Figure 3 and the signal waveforms of Fig. 4, can understand between each element and how to operate, and for description for purpose of brevity, so the operation of each step is just repeated no more among Fig. 5.Wherein, the sensing cell 110 of step 510 expression electronic installation 100/200 does not receive the situation that a user touches, and the step 520～522 then sensing cell 110 of expression electronic installation 100/200 receive the situation that a user touches.
The step of above-mentioned flow process is merely the present invention and lifts feasible embodiment; And unrestricted restrictive condition of the present invention; And under the situation of spirit of the present invention, this method can also comprise other intermediate steps or can several steps be merged into one step, to do suitable variation.
Above-described embodiment only is used for technical characterictic of the present invention is described, is not to be used for limiting to scope of the present invention.By on can know that the present invention provides a kind of electronic installation and corresponding control methods thereof.Through a sensing cell (can come practical operation) and arrange in pairs or groups simple charge-discharge circuit and treatment circuit by the conductive layer that is arranged near people's ear place of answering; Ear or the people's face that comes the sensing user whether near electronic installation (that is; Whether receiving a user touches); Thus, just can replace contiguous sensor originally and close contact panel and/or display panel purpose backlight automatically to reach.Because the shape size of conductive material is not limited, the area that therefore can increase conductive layer promotes its sensing range, with the shortcoming of avoiding sensing.In addition, because sensing cell is not to be optical element, therefore can meet demand attractive in appearance in the hope of the surface color design unanimity of electronic installation in that the coloured material of coating one deck on the specific region of sensing cell is being set.And, therefore can further save the manufacturing cost of electronic installation and can give its more additional function, to bring the user more convenience because conductive material such as Copper Foil is cheap.
The above is merely the preferred embodiments of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (12)
1. electronic installation includes:
Whether one sensing cell receives touching of an object in order to sensing;
One charge-discharge circuit is coupled to this sensing cell, and wherein this charge-discharge circuit and this sensing cell carry out periodically charge and discharge according to the pulse of one-period property, and exports a sensing voltage; And
One treatment circuit is coupled to this sensing cell and this charge-discharge circuit, and this treatment circuit includes:
One control module is used to provide these recurrent pulses and gives this sensing cell and this charge-discharge circuit;
One detecting unit is used for detecting this sensing voltage, and decides a duration of charging according to this sensing voltage, wherein should arrive the time of a predetermined voltage duration of charging for this sensing voltage;
One judging unit is coupled to this detecting unit, is used for determining whether triggering an interrupt request according to this duration of charging; And
One performance element is coupled to this judging unit, is used for when receiving this interrupt request, carrying out an application specific functionality.
2. electronic installation as claimed in claim 1, wherein this charge-discharge circuit includes a charging capacitor.
3. electronic installation as claimed in claim 1, wherein this sensing cell has a simulated capacitance, and when this sensing cell received touching of this object, the electric capacity of this simulated capacitance can change.
4. electronic installation as claimed in claim 1, wherein this judging unit is that this duration of charging and a critical value are compared; When this duration of charging during greater than this critical value, this judging unit triggers this interrupt request; And when this duration of charging was not more than this critical value, this judging unit did not trigger this interrupt request.
5. electronic installation as claimed in claim 1 also comprises a display panel and a contact panel, and wherein this application specific functionality is the closing function backlight of this contact panel or this display panel.
6. electronic installation as claimed in claim 1, it also comprises:
One voice output; And
One shell has a spatial accommodation and holds this voice output;
Wherein, this sensing cell is a conductive layer, and is arranged on the specific region of inside surface of this shell, and this specific region this spatial accommodation of next-door neighbour.
7. electronic installation as claimed in claim 1, it also comprises:
One voice output; And
One overlay has a pothole and holds this voice output to form a spatial accommodation;
Wherein, this sensing cell is a conductive layer, and is arranged on the specific region of inside surface of this overlay, and this specific region this pothole of next-door neighbour.
8. electronic installation as claimed in claim 1, wherein this sensing cell is a sheet metal.
9. electronic installation as claimed in claim 1, it is a mobile phone, a personal digital assistant, a PDA-phone or an intelligent mobile phone.
One kind control one electronic installation method, this electronic installation includes a sensing cell that touches and a charge-discharge circuit that whether receives an object in order to sensing, this method includes following steps:
Provide the pulse of one-period property to this sensing cell and this charge-discharge circuit;
Come charge-discharge circuit and this sensing cell are carried out periodically charge and discharge according to these recurrent pulses, to export a sensing voltage;
Detect this sensing voltage, and decide a duration of charging, wherein should arrive the time of a predetermined voltage duration of charging for this sensing voltage according to this sensing voltage;
Determine whether triggering an interrupt request according to this duration of charging; And
When receiving this interrupt request, carry out an application specific functionality.
11. method as claimed in claim 10 wherein determines whether that according to this duration of charging the step that triggers this interrupt request includes:
Should the duration of charging and a critical value compare;
When this duration of charging during, trigger this interrupt request greater than this critical value; And
When this duration of charging is not more than this critical value, do not trigger this interrupt request.
12. method as claimed in claim 10, wherein this application specific functionality is the closing function backlight of a contact panel or a display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010260606.0A CN102375534B (en) | 2010-08-19 | 2010-08-19 | Electronic device and related control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010260606.0A CN102375534B (en) | 2010-08-19 | 2010-08-19 | Electronic device and related control method thereof |
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| CN102375534A true CN102375534A (en) | 2012-03-14 |
| CN102375534B CN102375534B (en) | 2014-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109900365A (en) * | 2019-03-13 | 2019-06-18 | 深圳通感微电子有限公司 | Method and infrared detection device existing for a kind of judgement human body |
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| US20060114241A1 (en) * | 2004-11-29 | 2006-06-01 | Holtek Semiconductor Inc. | Identification method for touch control device |
| CN101639748A (en) * | 2008-07-29 | 2010-02-03 | 义隆电子股份有限公司 | Capacitive touch device and detection method thereof |
| CN101676842A (en) * | 2008-09-19 | 2010-03-24 | 统宝光电股份有限公司 | Method and device for sensing electric discharge of circuit, touch panel and electronic device |
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2010
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| WO2001003457A1 (en) * | 1999-06-30 | 2001-01-11 | Sony Electronics, Inc. | Method and apparatus for automatically answering an incoming call on a cordless or wireless phone |
| US6954867B2 (en) * | 2002-07-26 | 2005-10-11 | Microsoft Corporation | Capacitive sensing employing a repeatable offset charge |
| US20060114241A1 (en) * | 2004-11-29 | 2006-06-01 | Holtek Semiconductor Inc. | Identification method for touch control device |
| CN101639748A (en) * | 2008-07-29 | 2010-02-03 | 义隆电子股份有限公司 | Capacitive touch device and detection method thereof |
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| CN109900365A (en) * | 2019-03-13 | 2019-06-18 | 深圳通感微电子有限公司 | Method and infrared detection device existing for a kind of judgement human body |
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