CN102215288B - Handheld device capable of automatically switching between handheld mode and non-handheld mode and method thereof - Google Patents
Handheld device capable of automatically switching between handheld mode and non-handheld mode and method thereof Download PDFInfo
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- CN102215288B CN102215288B CN2010101576157A CN201010157615A CN102215288B CN 102215288 B CN102215288 B CN 102215288B CN 2010101576157 A CN2010101576157 A CN 2010101576157A CN 201010157615 A CN201010157615 A CN 201010157615A CN 102215288 B CN102215288 B CN 102215288B
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Abstract
The invention discloses a handheld device capable of automatically switching between a handheld mode and a non-handheld mode and a method thereof. The handheld device capable of automatically switching between the handheld mode and the non-handheld mode comprises a sensing unit, a control unit, a computing unit and a mode control unit; the sensing unit generates a sensing result according to a condition whether the contact from an user is received; the control unit sends a charging-discharging signal to the sensing unit and charges and discharges the sensing unit by utilizing the charging-discharging signal; the computing unit is coupled with the sensing unit and used for generating a mode control signal according to the sensing result; and the mode control unit is coupled with the computing unit and used for controlling the handheld device to be in the handheld mode or the non-handheld mode according to the mode control signal.
Description
Technical field
The present invention relates to handheld apparatus and the corresponding control methods thereof of a kind of hand-held mode that automatically switches/non-hand-held mode, particularly relate to and a kind ofly by a sensing cell, come sensing whether to receive that the user touches and control this sensing cell by a control unit, use handheld apparatus and the corresponding control methods thereof of differentiation " hand-held " and the behavior of " non-hand-held ".
Background technology
In the flourish advanced information society in wireless telecommunications networking, the handheld apparatus such as mobile phone, personal digital assistant have become one of the most general communication tool of society utilization.Yet, although handheld apparatus is defined by " can by the user with the hand-held device had ", but with regard to existing handheld apparatus, device itself also has no way of learning whether by the user, whether " had with hand-held ", therefore in operation, also can't automatically adjust in response to " hand holding state " and " non-hand holding state " setting of handheld apparatus, also thereby can't produce the handheld apparatus of " intelligent ", in a lot of application, can cause user's inconvenience.
Therefore, how promoting the convenience of handheld apparatus and increase the more additional function of handheld apparatus, is also one of the important topic in the design field.
Summary of the invention
Therefore, one of purpose of the present invention is to propose handheld apparatus and the corresponding control methods thereof of a kind of hand-held mode that automatically switches/non-hand-held mode, to solve the above problems.
The present invention discloses the handheld apparatus of a kind of hand-held mode that automatically switches/non-hand-held mode, includes: a sensing cell, a control unit, an arithmetic element and a pattern control unit.Sensing cell is used for touching according to whether receiving a user, to produce a sensing result.Control unit is used for sending one and discharges and recharges signal to this sensing cell, and utilizes this to discharge and recharge signal this sensing cell is carried out to charge and discharge.Arithmetic element is coupled to this sensing cell, is used for producing a pattern according to this sensing result and controls signal.The pattern control unit is coupled to this arithmetic element, is used for controlling this handheld apparatus according to this pattern control signal and is in a hand-held pattern or a non-hand-held mode.In an embodiment, this sensing result is a sensing voltage, and this arithmetic element is a voltage comparator.
The present invention also discloses the handheld apparatus of a kind of hand-held mode that automatically switches/non-hand-held mode, includes: a sensing cell, a control unit, a counting module, an arithmetic element and a pattern control unit.Sensing cell is used for touching according to whether receiving a user, to produce a sensing result.Control unit is used for sending recurrent pulses to this sensing cell, and utilizes these recurrent pulses to carry out periodically charge and discharge to this sensing cell.Counting module is coupled to this control unit and this sensing cell, is used for the umber of pulse of these recurrent pulses is counted, and when the indication of this sensing result receives this user and touches, output one count value.Arithmetic element is coupled to this counting module, is used for producing a pattern according to this count value and controls signal.The pattern control unit is coupled to this arithmetic element, is used for controlling this handheld apparatus according to this pattern control signal and is in a hand-held pattern or a non-hand-held mode.In an embodiment, this counting module includes a counter and a voltage comparator.
The present invention also discloses the method for the pattern of a kind of control one handheld apparatus, includes following steps: send one and discharge and recharge signal to a sensing cell, and utilize this to discharge and recharge signal this sensing cell is carried out to charge and discharge; Whether this sensing cell basis receives a user is touched, to produce a sensing result; According to this sensing result, produce a pattern and control signal; And according to this pattern, control signal and control this handheld apparatus and be in a hand-held pattern or a non-hand-held mode.
The present invention also discloses the method for the pattern of a kind of control one handheld apparatus, includes following steps: send recurrent pulses to a sensing cell, and utilize these recurrent pulses to carry out periodically charge and discharge to a sensing cell; Whether this sensing cell basis receives a user is touched, to produce a sensing result; Umber of pulse to these recurrent pulses is counted, and when the indication of this sensing result receives this user and touches, output one count value; According to this count value, produce a pattern and control signal; And according to this pattern, control signal and control this handheld apparatus and be in a hand-held pattern or a non-hand-held mode.
The accompanying drawing explanation
Fig. 1 is can the automatically switch schematic diagram of an embodiment of handheld apparatus of hand-held mode/non-hand-held mode of the present invention.
Fig. 2 is the functional block diagram of the first exemplary embodiment of handheld apparatus shown in Figure 1.
Fig. 3 is that sensing cell shown in Figure 2 does not touch and receive in the situation that receive the user signal waveform figure that the user touches the sensing voltage produced.
Fig. 4 is the functional block diagram of the second exemplary embodiment of handheld apparatus shown in Figure 1.
The signal waveform figure of Fig. 5 (comprise do not receive user touch and receive the user touch) sensing voltage of producing that is sensing cell shown in Figure 4 in the situation that in discharge regime and in the charging stage.
Fig. 6 is the flow chart of an example operation of the method for the present invention's pattern of controlling a handheld apparatus.
Fig. 7 is the flow chart of another example operation of the method for the present invention's pattern of controlling a handheld apparatus.
The reference numeral explanation
100,400 handheld apparatus
110,410 control units
120,420 sensing cells
130,430 arithmetic elements
132,452 voltage comparators
140,440 pattern control units
Scharge discharges and recharges signal
The Vs sensing voltage
V
THCritical voltage
The SC pattern is controlled signal
The MD1 hand-held mode
The non-hand-held mode of MD2
V1, V2 current potential
S1, S2, S3, S4, S5 curve
SW1 the first switch
The SW2 second switch
450 counting modules
454 counters
432 comparators
The Nc count value
N
THCritical value
The EN enable signal
#EN forbidden energy signal
SS1 the first switch signal
SS2 second switch signal
The VD predetermined potential
T1, t2 time
S600～S622, S700～S722 step
Embodiment
Please in the lump with reference to figure 1 and Fig. 2, wherein, Fig. 1 is can the automatically switch schematic diagram of an embodiment of handheld apparatus 100 of hand-held mode/non-hand-held mode of the present invention, and Fig. 2 is the functional block diagram of the first exemplary embodiment of handheld apparatus 100 shown in Figure 1.As shown in Figure 1, handheld apparatus 100 includes a control unit 110 and a sensing cell 120, in the present embodiment, sensing cell 120 is to carry out implementation by a conductive material, and this conductive material can be attached to the case surface of handheld apparatus 100 or be embedded in the inside of shell, and can come sensing whether to receive a user by the mode of the mode directly contacted or indirect induction and touch.Control unit 110 is to be coupled to sensing cell 120, is used for controlling the running of sensing cell 120.
As shown in Figure 2, handheld apparatus 100 includes (but being not limited to) control unit 110, a sensing cell 120, an arithmetic element 130 and a pattern control unit 140.Wherein, control unit 110 is used for sending one and discharges and recharges signal Scharge to sensing cell 120, and utilizes and to discharge and recharge signal Scharge sensing cell 120 is carried out to charge and discharge.In the present embodiment, discharge and recharge signal Scharge and can be recurrent pulses (periodic pulse), so control unit 110 utilizes these recurrent pulses to carry out periodically charge and discharge to sensing cell 120.Sensing cell 120 is coupled to control unit 110, and whether its basis receives a user is touched to produce a sensing result, and in the present embodiment, this sensing result that sensing cell 120 produces is a sensing voltage Vs, but this is not restrictive condition of the present invention.Then, arithmetic element 130 is coupled to sensing cell 120, and according to this sensing result (that is, sensing voltage Vs), produces a pattern and control signal SC to pattern control unit 140.Pattern control unit 140 is coupled to arithmetic element 130, is used for controlling handheld apparatus 100 according to pattern control signal SC and is in a hand-held pattern MD1 or a non-hand-held mode MD2.
In the present embodiment, arithmetic element 130 can for example, be realized by a voltage comparator (, 132), but this is not restrictive condition of the present invention.Voltage comparator 132 is by sensing voltage Vs and a critical voltage V
THCompare, control signal SC to pattern control unit 140 with the generation pattern.For example, be less than critical voltage V as sensing voltage Vs
THThe time (that is, Vs<V
TH), pattern is controlled signal SC and is had one first logic level (for example: " 1 "), and now pattern control unit 140 meetings be controlled handheld apparatus 100 according to the pattern control signal SC with this first logic level and be in hand-held mode MD1; Anti-, when sensing voltage Vs is not less than critical voltage V
THThe time (that is, Vs>=V
TH), pattern is controlled signal SC and is had one second logic level, and now pattern control unit 140 meetings be controlled handheld apparatus 100 according to the pattern control signal SC with this second logic level and be in non-hand-held mode MD2.
Please note, disclosed handheld apparatus 100 is by sensing cell 120 (can carry out implementation by the case surface that is attached to handheld apparatus 100 or the conductive material that is embedded in housings), to come sensing whether to receive a user to touch, and by control unit 110, sensing cell 120 is carried out to charge and discharge, to reach, distinguish the purpose of " hand-held " and " non-hand-held ".For example, please in the lump with reference to figure 3, Fig. 3 is that sensing cell 120 shown in Figure 2 does not touch and receive in the situation that receive the user signal waveform figure that the user touches the sensing voltage Vs produced.In the situation that user's finger or human body do not touch sensing cell 120 on handheld apparatus 100 (that is, not receiving the user touches), because control unit 110 meeting utilizations discharge and recharge signal Scharge, sensing cell 120 is carried out to periodically charge and discharge, therefore within a charging stage, between control unit 110 and sensing cell 120, can form a charge path, and in a discharge regime, between control unit 110 and sensing cell 120, can form a discharge path, thus, the sensing voltage Vs of sensing cell 120 will maintain a fixed potential V1, as shown in the first curve S 1 in Fig. 3.And, in the situation that user's finger or human body touch or with hand-held sensing cell 120 on handheld apparatus 100 (that is, receive the user and touch) arranged, will change discharge path and the discharge loop of sensing unit 120.In other words, user's finger or human body and control unit 110, sensing cell 120 can be with between the earth, forming another discharge path, and handheld apparatus 100 a membership discharge path are thus led the electric charge of sensing cell 120, thus, the current potential of the sensing voltage Vs that 120 of sensing cells can maintain will be changed (decline), as shown in the second curve S 2 in Fig. 3, the sensing voltage Vs of sensing cell 120 can drop to another current potential V2.
Please note, above-mentioned handheld apparatus 100 can be a mobile phone (mobile phone), a personal digital assistant (personal digital assistant, PDA), a PDA-phone (PDA phone) or an intelligent mobile phone (smart phone), but the present invention is not limited thereto, also can be the handheld apparatus of other kind.Moreover, the non-hand-held mode MD2 of above-mentioned hand-held mode MD1/ can be relevant to the application settings of handheld apparatus 100, such as: the application functions such as the automatic switchover of incoming call vibrations control, the pattern that amplifies and hand-held mode, the control of sound size, those skilled in the art should understand, the various variations of the related application of hand-held mode MD1 and non-hand-held mode MD2 are all feasible, visual actual demand and designing.
Please refer to Fig. 4, Fig. 4 is the functional block diagram of the second exemplary embodiment of handheld apparatus shown in Figure 1.In the present embodiment, handheld apparatus 400 includes (but being not limited to) control unit 410, a sensing cell 420, an arithmetic element 430, a pattern control unit 440, a counting module 450, one first interrupteur SW 1 and a second switch SW2.Due to the relevant running of control unit 410, sensing cell 420 be with Fig. 2 in control unit 110, sensing cell 1,200 minutes similar, for identical for purpose of brevity part just repeats no more.It should be noted that control unit 410 can produce in addition an activation signal EN to counting module 450, also produce one first switch signal SS 1 to the first interrupteur SW 1, and also produce a second switch signal SS2 to second switch SW2.Counting module 450 is to be coupled to control unit 410 and sensing cell 420, when receiving enable signal EN, counting module 450 can start (for example to discharge and recharge signal Scharge to what control unit 410 was sent, one recurrent pulses) umber of pulse is counted, and when sensing cell 420 receives a user and touches, stop counting and export a count value Nc, wherein count value Nc is corresponding to a gate time.Then, arithmetic element 430 is coupled to counting module 450, and produces a pattern control signal SC to pattern control unit 440 according to count value Nc (or gate time).Pattern control unit 440 is coupled to arithmetic element 430, is used for controlling handheld apparatus 400 according to pattern control signal SC and is in hand-held mode MD1 or non-hand-held mode MD2.
In the present embodiment, counting module 450 realized by a voltage comparator 452 and a counter (counter) 454, and wherein voltage comparator 452 is by sensing voltage Vs and a critical voltage V
THCompare, to determine whether to export a forbidden energy (disable) signal #EN.For example, be greater than critical voltage V as sensing voltage Vs
THThe time, now voltage comparator 452 can be exported forbidden energy signal #EN to counter 454; And work as sensing voltage Vs, be not more than critical voltage V
THThe time, 452 of voltage comparators can not exported forbidden energy signal #EN to counter 454.Counter 454 is coupled to voltage comparator 452, after receiving enable signal EN, just can start counting and (for example discharge and recharge signal Scharge, one recurrent pulses) umber of pulse, and when receiving forbidden energy signal #EN, stop counting to obtain count value Nc (or gate time).
Moreover arithmetic element 430 is for example, by a comparator (, 432), to be realized, but this is not restrictive condition of the present invention.Comparator 432 is by count value Nc and a critical value N
THCompare, control signal SC to pattern control unit 440 with the generation pattern.For example, be less than critical value N as count value Nc
THThe time (that is, Nc<N
TH), pattern is controlled signal SC and is had one first logic level (for example: " 1 "), and now pattern control unit 440 meetings be controlled handheld apparatus 400 according to the pattern control signal SC with this first logic level and be in hand-held mode MD1; Otherwise, when count value Nc is not less than critical value N
THThe time (that is, Nc>=N
TH), pattern is controlled signal SC and is had one second logic level, and now pattern control unit 440 meetings be controlled handheld apparatus 400 according to the pattern control signal SC with this second logic level and be in non-hand-held mode MD2.
In addition, the first interrupteur SW 1 is to be coupled between control unit 410 and sensing cell 420, and control unit 410 is to determine whether conducting the first interrupteur SW 1 according to the first switch signal SS1, to determine whether will send sensing cell 420 to by discharging and recharging signal Scharge.Second switch SW2 is coupled between sensing cell 420 and an earth terminal, and control unit 410 is to determine whether conducting second switch SW2 according to second switch signal SS2.It should be noted that within a charging stage, the first interrupteur SW 1 for conducting and second switch SW2 for closing, now control unit 410, the first interrupteur SW 1 and sensing cell 420 formation one charge paths; And in a discharge regime, the first interrupteur SW 1 is for closing and second switch SW2 is conducting, now second switch SW2 and sensing cell 420 form discharge paths.
Please in the lump with reference to figure 5, the signal waveform figure of Fig. 5 (comprise do not receive user touch and receive the user touch) sensing voltage Vs of producing that is sensing cell 420 shown in Figure 4 in the situation that in discharge regime and in the charging stage.At first, in discharge regime, first the conductive material of sensing cell 420 is drained electric charge by discharge path, as shown in the 5th curve S 5 in Fig. 5.Then, within the charging stage, open charge path, next describe in two kinds of situation: in the situation that user's finger or human body do not touch sensing cell 420 on handheld apparatus 400 (that is, not receiving the user touches), because control unit 410 meeting utilizations discharge and recharge signal Scharge, sensing cell 420 is carried out to periodically charge and discharge, therefore the sensing voltage Vs of sensing cell 420 can be at a period of time t1 (now, count value Nc is corresponding to N1 umber of pulse) within just charging arrive predetermined potential VD, as shown in the 3rd curve S 3 in Fig. 5.And in the situation that user's finger or human body touch or with hand-held have sensing cell 420 on handheld apparatus 400 (that is, receiving the user touches), can change the equivalent quantity of electric charge because of user's finger or touching of human body, therefore will change the charging interval of sensing unit 420.Thus, just sensing cell 420 need can charge afterwards and arrive predetermined potential VD through t2 (now, count value Nc is corresponding to N2 umber of pulse) after a while, as shown in the 4th curve S 4 in Fig. 5.
In brief, in first embodiment, in the situation that user's finger or human body do not touch the sensing cell 120 on handheld apparatus 100, sensing voltage Vs can maintain current potential V1 and be not less than critical voltage V
TH(that is, Vs>=V
TH), now pattern control unit 140 just can be controlled handheld apparatus 100 and is in non-hand-held mode MD2; And in the situation that user's finger or human body touch or with the hand-held sensing cell 120 had on handheld apparatus 100, sensing voltage Vs can drop to current potential V2 and be less than critical voltage V
TH(that is, Vs<V
TH), now pattern control unit 140 just can be controlled handheld apparatus 100 and is in hand-held mode MD1.
In addition, in second embodiment, in the situation that user's finger or human body do not touch the sensing cell 420 on handheld apparatus 400, the sensing voltage Vs of sensing cell 420 can just charge and arrive predetermined potential VD within a period of time t1, that is to say, the resulting count value Nc of counting module 450 (or gate time) less (that is, Nc<N
TH), now pattern control unit 440 just can be controlled handheld apparatus 400 and is in non-hand-held mode MD2; And in the situation that user's finger or human body touch or with the hand-held sensing cell 420 had on handheld apparatus 400, sensing cell 420 need to can charge and arrive predetermined potential VD after t2 after a while, that is to say, the resulting count value Nc of counting module 450 (or gate time) large (that is, Nc>=N
TH), now pattern control unit 440 just can be controlled handheld apparatus 400 and is in hand-held mode MD1.Thus, handheld apparatus 100,400 just can reach the purpose of automatic switchover (or control) hand-held mode/non-hand-held mode, and and then promotes the additional function of handheld apparatus 100,400 and bring the user more convenience.
Please refer to Fig. 6, Fig. 6 is the flow chart of an example operation of the method for the present invention's pattern of controlling a handheld apparatus, the method comprises following step (can obtain roughly the same result if note that, the following step non-limiting will the execution according to order shown in Figure 6):
Step S600: start.
Step S602: send one and discharge and recharge signal to a sensing cell, and utilize this to discharge and recharge signal this sensing cell is carried out to charge and discharge.
Step S604: whether this sensing cell basis receives a user is touched, to produce a sensing result (sensing voltage).
Step S606: this sensing voltage and a critical voltage are compared.When this sensing voltage is less than this critical voltage, execution step S610; Otherwise, execution step S620.
Step S610: when this sensing voltage is less than this critical voltage, produces this pattern with one first logic level and control signal.
Step S612: control this handheld apparatus according to this pattern control signal with this first logic level and be in hand-held mode.
Step S620: when this sensing voltage is not less than this critical voltage, produces this pattern with one second logic level and control signal.
Step S622: control this handheld apparatus according to this pattern control signal with this second logic level and be in this non-hand-held mode.
About each step shown in Figure 6, please in conjunction with Fig. 1, each assembly shown in Figure 2 and the signal waveform figure of Fig. 3, can understand between each assembly and how to operate, and for description for purpose of brevity, therefore in Fig. 6, the operation of each step just repeats no more.Wherein, step S610～S612 means that handheld apparatus 100 is in the situation of hand-held mode MD1, and step S620～S622 means that handheld apparatus 100 is in the situation of non-hand-held mode MD2.
Please refer to Fig. 7, Fig. 7 is the flow chart of another example operation of the method for the present invention's pattern of controlling a handheld apparatus.The method comprises (but being not limited to) following steps:
Step S700: start.
Step S702: send recurrent pulses to a sensing cell, and utilize these recurrent pulses to carry out periodically charge and discharge to a sensing cell.
Step S704: whether this sensing cell basis receives a user is touched, to produce a sensing result.
Step S706: the umber of pulse to these recurrent pulses is counted, and when the indication of this sensing result receives this user and touches, output one count value.
Step S708: this count value and a critical value are compared.When this count value is greater than this critical value, execution step S710; Otherwise, execution step S720.
Step S710: when this count value is greater than this critical value, produces this pattern with one first logic level and control signal.
Step S712: control this handheld apparatus according to this pattern control signal with this first logic level and be in this hand-held mode.
Step S720: when this count value is not more than this critical value, produces this pattern with one second logic level and control signal.
Step S722: control this handheld apparatus according to this pattern control signal with this second logic level and be in this non-hand-held mode.
About each step shown in Figure 7, please in conjunction with Fig. 1, each assembly shown in Figure 4 and the signal waveform figure of Fig. 5, can understand between each assembly and how to operate, and for description for purpose of brevity, therefore in Fig. 7, the operation of each step just repeats no more.Wherein, step S710～S712 means that handheld apparatus 400 is in the situation of hand-held mode MD1, and step S720～S722 means that handheld apparatus 400 is in the situation of non-hand-held mode MD2.
The step of above-mentioned each flow process only for the present invention for feasible embodiment, and unrestricted restrictive condition of the present invention, and in the situation that without prejudice to spirit of the present invention, those methods can also comprise other intermediate steps or several steps can be merged into to one step, to do suitable variation.
Above-described embodiment only is used for illustrating technical characterictic of the present invention, not is used for limiting to category of the present invention.As from the foregoing, the invention provides a kind of hand-held mode that the automatically switches/handheld apparatus of non-hand-held mode and relevant control method thereof.By a sensing cell (can carry out implementation by the case surface that is attached to handheld apparatus or the conductive material that is embedded in housings), coming sensing whether to receive a user touches, and come this to sensing cell, to carry out charge and discharge by control unit, due to the sensing cell on handheld apparatus (for example, conductive material) in the situation that touched by user's finger or human body, can change discharge path and the quantity of electric charge originally, therefore can distinguish by this state of " hand-held " and " non-hand-held ".Thus, could in response to " hand holding state " and " non-hand holding state ", automatically adjust the setting of handheld apparatus, for example, the application functions such as the automatic switchover that can increase sends a telegram here shakes control, the pattern that amplifies and hand-held mode, the control of sound size.Therefore, the disclosed handheld apparatus of the present invention can be given its more additional function, and brings the user more convenience.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. handheld apparatus of hand-held mode/non-hand-held mode that can automatically switch includes:
One sensing cell, be used for touching according to whether receiving a user, to produce a sensing voltage;
One control unit, be used for sending one and discharge and recharge signal to this sensing cell, and utilize this to discharge and recharge signal this sensing cell is carried out to charge and discharge;
One arithmetic element, be coupled to this sensing cell, is used for producing a pattern control signal according to this sensing voltage and a critical voltage; And
One pattern control unit, be coupled to this arithmetic element, is used for controlling this handheld apparatus according to this pattern control signal and is in a hand-held pattern or a non-hand-held mode.
2. handheld apparatus as claimed in claim 1, wherein this to discharge and recharge signal be recurrent pulses, and this control unit is to utilize these recurrent pulses to carry out periodically charge and discharge to this sensing cell.
3. handheld apparatus as claimed in claim 1, wherein within a charging stage, this control unit and this sensing cell form a charge path; And in a discharge regime, this control unit and this sensing cell form a discharge path.
4. handheld apparatus as claimed in claim 1, wherein this arithmetic element is by the voltage swing of measuring this sensing voltage, to produce this pattern to control signal.
5. handheld apparatus as claimed in claim 4, wherein this arithmetic element includes:
One voltage comparator, be used for this sensing voltage and this critical voltage are compared, and controls signal to produce this pattern;
Wherein, when this sensing voltage was less than this critical voltage, this pattern was controlled signal and is had one first logic level, and this pattern control unit is according to this pattern control signal with this first logic level, to control this handheld apparatus to be in this hand-held mode; And
When this sensing voltage was not less than this critical voltage, this pattern was controlled signal and is had one second logic level, and this pattern control unit is according to this pattern control signal with this second logic level, to control this handheld apparatus to be in this non-hand-held mode.
6. handheld apparatus as claimed in claim 1, wherein this sensing cell comprises a conductive material.
7. handheld apparatus as claimed in claim 1, wherein this sensing cell be the mode indirectly responded to or directly the mode of contact receive this user and touch.
8. handheld apparatus as claimed in claim 1, it is a mobile phone or a personal digital assistant.
9. handheld apparatus of hand-held mode/non-hand-held mode that can automatically switch includes:
One sensing cell, be used for touching according to whether receiving a user, to produce a sensing voltage;
One control unit, be used for sending recurrent pulses to this sensing cell, and utilize these recurrent pulses to carry out periodically charge and discharge to this sensing cell;
One counting module, be coupled to this control unit and this sensing cell, is used for the umber of pulse of these recurrent pulses is counted, and when the indication of this sensing voltage receives this user and touches, output one count value;
One arithmetic element, be coupled to this counting module, is used for producing a pattern according to this count value and controls signal; And
One pattern control unit, be coupled to this arithmetic element, is used for controlling this handheld apparatus according to this pattern control signal and is in a hand-held pattern or a non-hand-held mode.
10. handheld apparatus as claimed in claim 9, wherein this control unit also produces one first switch signal and a second switch signal, and this handheld apparatus also comprises:
One first switch, be coupled between this control unit and this sensing cell, is used for determining whether this first switch of conducting according to this first switch signal, to send these recurrent pulses to this sensing cell; And
One second switch, be coupled between this sensing cell and an earth terminal, is used for determining whether this second switch of conducting according to this second switch signal.
11. handheld apparatus as claimed in claim 10, wherein within a charging stage, this first switch be conducting, this second switch for closing, and this control unit, this first switch and this sensing cell form a charge path.
12. handheld apparatus as claimed in claim 10, wherein in a discharge regime, this first switch for closing, this second switch is conducting, and this second switch and this sensing cell form a discharge path.
13. handheld apparatus as claimed in claim 9, wherein this counting module is to determine whether exporting by the voltage swing of measuring this sensing voltage this count value of counting.
14. handheld apparatus as claimed in claim 13, wherein this control unit also produces an activation signal, and this counting module includes:
One counter, start to count the umber of pulse of these recurrent pulses when receiving this enable signal, and when receiving a forbidden energy signal, stop counting to obtain this count value; And
One voltage comparator, be used for this sensing voltage and a critical voltage are compared, to determine whether to export this forbidden energy signal;
Wherein, when this sensing voltage is greater than this critical voltage, export this forbidden energy signal to this counter; And, when this sensing voltage is not more than this critical voltage, do not export this forbidden energy signal to this counter.
15. handheld apparatus as claimed in claim 9, wherein this arithmetic element comprises:
One comparator, be used for this count value and a critical value are compared, and controls signal to produce this pattern;
Wherein, when this count value was greater than this critical value, this pattern was controlled signal and is had one first logic level, and this pattern control unit is according to this pattern control signal with this first logic level, to control this handheld apparatus to be in this hand-held mode; And
When this count value was not more than this critical value, this pattern was controlled signal and is had one second logic level, and this pattern control unit is according to this pattern control signal with this second logic level, to control this handheld apparatus to be in this non-hand-held mode.
16. handheld apparatus as claimed in claim 9, wherein this sensing cell comprises a conductive material.
17. handheld apparatus as claimed in claim 9, wherein this sensing cell be the mode indirectly responded to or directly the mode of contact receive this user and touch.
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| GB2357400A (en) * | 1999-12-17 | 2001-06-20 | Nokia Mobile Phones Ltd | Controlling a terminal of a communication system |
| WO2009142345A1 (en) * | 2008-05-23 | 2009-11-26 | Atlab Inc. | Touch sensor device and the method of switching operation mode thereof |
| CN101676842B (en) * | 2008-09-19 | 2013-07-24 | 群创光电股份有限公司 | Method and device for sensing electric discharge of circuit, touch panel and electronic device |
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|---|---|
| CN102215288A (en) | 2011-10-12 |
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