CN100492261C - A inductive-switch user interface device and portable terminal thereof - Google Patents
A inductive-switch user interface device and portable terminal thereof Download PDFInfo
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- CN100492261C CN100492261C CNB2004800433553A CN200480043355A CN100492261C CN 100492261 C CN100492261 C CN 100492261C CN B2004800433553 A CNB2004800433553 A CN B2004800433553A CN 200480043355 A CN200480043355 A CN 200480043355A CN 100492261 C CN100492261 C CN 100492261C
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- user interface
- induction installation
- portable terminal
- interface device
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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
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
- G06F3/0219—Special purpose keyboards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3271—Power saving in keyboard
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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
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
This invention relates to the inductive-switch touch-sensitive keyboards on portable terminals. As is known, if we are to keep the original fonctions of the digital keyboard on a cell-phone, the power consumption of the Gell-phone will increase when the user manually input words, and the idle time and working time of the Gell-phone will shrink. This invention, with consideration to the aboye, provides an inductive-switch user interface as well as the corresponding portable terminal, includes multiple keys, at least one of inductive devices that couples with each key, and at least one of electric-mechanical switch networks that corresponds with each of the keys. The Said inductive devices and electricmechanical switch networks are connected to the same inductive-switch circuit. When an inducting object slides within the inductive space of the said inductive device, the inductive-switch circuit will output track information on the position of the said inducting object. Likewise, when an inducting object presses the key such that at least one of the electric-mechanical switch networks is switched on, the said inductive-switch circuit will generate information about the position and state of that pressed key. The useful function of this invention lies in that it maintains the original outside structure of the cell-phone while providing functions like manual words input and cursor control.
Description
Technical field
The present invention relates to electronic technology field, particularly be used for the inductive switch formula touch keyboard of portable terminal; Be a kind of user interface device and portable terminal thereof concretely.
Background technology
Along with development of Communication Technique, mobile phone is a kind of as portable terminal, has become dark popular means of communication.Mobile phone along with user's needs just towards miniaturization, hommization, variation and datumization develop.Traditional mobile phone is mainly based on conversation.This requirement to user interface device is simple relatively.Mobile phone key keyboard based on the electric mechanical switch principle has been well positioned to meet requirement.This keyboard generally includes ten numeral/alphabet keys of 0-9, and the several function key.The button below is provided with spring caps, and after button was pressed, the contact of the conductive layer of spring caps was also connected electric switch.The button push action is accepted the back spring caps from the meeting original position of moving, and forms tactile feedback, and prompting user actuation of keys is finished.The electric mechanical switch technology that keyboard uses has been sound, and is easy to realize dependable performance.Yet along with increasing cellphone subscriber brings into use picture Email (Email), multimedia message (MMS), instant messages (IM) and short message mobile phone Word information communication modes such as (SMS), the literal input has proposed new requirement to user interface device.And the literal of non-letter that input characters is especially imported as Chinese on the conventional mobile phone key board is the very thing of difficulty of part.Develop rapidly along with communication service, particularly be accompanied by broadband The Application of Technology such as GPRS, this type of business can require the user to import more information, and existing user interface device can not satisfy above requirement again, and this is restricted with regard to the widespread use that makes information service.
Various novel user interface devices are applied on the mobile phone.The touch-screen that for example has hand-write recognition function also is used in input characters on the mobile phone.Two kinds of popular touch-screens are respectively resistive touch screen and capacitive touch screen at present, and resistive touch screen is to be made of deformable resistance film of one deck and the fixing resistance film of one deck, and is middle isolated by air.Its principle of work is: when with pen or during the user's finger contacts touch-screen, the upper resistors compressive deformation also contact with lower resistors, the position that the lower resistors film just can induce or the user points.Second kind is the capacitive touch screen technology, and the principle of work of capacitive touch screen is the same substantially with resistive touch screen, it mainly be by writing pencil when substrate is exerted pressure, the position of writing pencil is located in the change of capacitance.This novel user interface device of touch-screen has well solved the problem of literal input.Yet, in order to keep the small and exquisite of mobile phone profile, have only a touch-screen in these class mobile phones designs of great majority and omitted keypad.Also can be used for showing a dummy keyboard on the touch-screen, such design, the user just needs to click the virtual key that connects that shows on touch-screen and dials.Dummy keyboard does not provide tactile feedback, and the user can feel to use inconvenience usually, and is easy to generate faulty operation.Also have the existing touch-screen of some mobile phones that numeric keypad is arranged again, the unavoidable volume of such mobile phone is big, carries inconvenience.In a word, touch-screen is difficult to well satisfy simultaneously number dialing telephone call, literal input, and the requirement of miniaturization.
Also be used on the mobile phone as the touch pad that is used on the notebook computer recently, for example, the disclosed device of US2003048257, on Nokia (Nokia) 6108 cellular phone flip keypad is housed, the user dials on button, opening renovating of keypad, is exactly a touch pad below.The user can use input pen input characters on touch pad.When the user write the stroke of literal with input pen on touch pad, the pressure that the special IC controller in the mobile phone produced when sensing input pen and streaking on touch pad changed.And then the position of stroke on the XY coordinate just go on record, and deliver on the handwriting recognition processor.The several candidates' that are consistent with the input stroke character will be output and be presented on the display then.Next, the user clicks menu and icon with input pen and searches and select to confirm or delete the shown character that goes out on touch pad.But have touch pad and digital keys simultaneously, increased mobile phone cost and mobile phone overall volume.
US2003025679, EP1197835 disclose similar user interface device, and the design that has touch pad and key board is simultaneously improved.Touch pad directly is contained in below the key board.The button below is provided with spring caps.For the electric mechanical switch of key board is able to work,, on touch pad, all to make a call to a hole accordingly at each button.During pressing keys,, the mechanical post of button presses spring caps like this thereby just can passing touch pad smoothly.The conductive layer contact of spring caps is also connected electric switch.The button push action is accepted the back spring caps from the meeting original position of moving, and forms tactile feedback, and prompting user actuation of keys is finished.The function of key board is kept, and number dialing telephone call is very convenient.When the user points when surface of keyboard slides, contactless touch pad and coupled special IC controller thereof are by the principle of capacitive sensing, measure and export the motion track of user's finger, and then realize that hand-write recognition function comes input characters on mobile phone, or moving cursor control user interface.Here the electric mechanical switch of button is controlled by the different independent circuits of two covers respectively with contactless touch pad.Wherein scanning parallel circuit separately all works alone simultaneously, and then monitoring and judge that whether the user points pressing keys, or whether user's finger has increased power consumption in the surface of keyboard slip.
US5917906 discloses user interface device, and the design that has touch pad and keyboard is simultaneously improved.On touch pad, add one group of spring caps and separation layer.Separation layer comprises that one group of aperture and spring caps are complementary, like this upper surface opposed flattened of spring caps and insulation layer structure.Their the top very smooth input face that indicates the button sign that adds again.When with pen or user's finger presses button sign, spring caps provides tactile feedback, and the contact portion of spring caps and touch pad produces pressure simultaneously, thereby realizes the function of button by the location determination of touch pad pressed part.When band power is slided on input face with pen or user finger, judge by the track of touch pad pressed part and to realize hand-write input function.This scheme provides hand-write input function and has had the function of the button of tactile feedback.Yet there is following defective in it.The first, when with pen or user's finger presses button sign, spring caps has certain area, and is also inhomogeneous with contacting of touch pad.Stressed by contacting, how to judge whether button is pressed to be inaccurate.Be easy to produce erroneous judgement.It is not corresponding with the bounce-back point of spring caps to contact stressed judgement critical value, thereby it is puzzled that the user is produced tactile feedback, is easy to produce erroneous judgement to whether having pushed button.The second, though input face can be very flat to make things convenient for handwriting input,, make the feel of handwriting input poor because the existence of spring caps causes the stressed having or not the local and unsmooth of spring caps of touch pad.Stressed inhomogeneous meeting makes the identification of person's handwriting produce uncontinuity, reduces the discrimination of handwriting input.The 3rd, spring caps directly contacts with touch pad, the frequent distortion of spring caps and the mobile wearing and tearing that can cause touch pad.
Summary of the invention
The objective of the invention is to, a kind of user interface device, method and portable terminal thereof are provided, and when above-mentioned new literal input and cursor control function are provided, keep the original contour structures of mobile phone, also do not lose the original function of numeric keyboard of mobile telephone.And reduce the power consumption of hand-written mobile phone, prolong the mobile phone communication stand-by time.
Technical scheme of the present invention is:
A kind of user interface device comprises a plurality of buttons, the induction installation that at least one and described button are coupled, down corresponding at least one the electric mechanical switch net of described button; Described induction installation and described electric mechanical switch net link to each other with same inductive switch circuit; When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor; Press button when an inductor, when causing at least one electric mechanical switch net to be connected by electricity, described inductive switch circuit output is by the positional information of button and state.
Described button comprises having the mechanical component of haptic feedback functions.
Described button comprises that directly various buttons stamp numeral, thereby letter character or control character are represented in a plurality of zones of demarcating on described induction installation surface.
Described induction installation is capacitive, and promptly described induction installation is to produce positional information by measuring changes in capacitance.
Described induction installation is a resistance-type, and promptly described induction installation is the variation generation positional information by measuring resistance.
Described induction installation is an inductance type, and promptly described induction installation is the variation generation positional information by inductance measuring.
Described induction installation is an impedance type, and promptly described induction installation is to produce positional information by the variation of measuring impedance.
Described induction installation is made of transparent or approximate material transparent.
Described induction installation comprises the inductive layer that one deck at least is made of induction electrode.
Described induction electrode is the lead bar of isolating mutually.
Described induction electrode is to cross one another, disjunct lead bar.
Described induction electrode is that mutual Uncrossed lead bar connects the conducting strip that at least one has certain area; Described conducting strip is printed to rectangle, circle, ellipse, triangle, rhombus, polygon or other have the shape of reasonable on state characteristic and coupling capacitance.
Described induction electrode is distributed in different inductive layers, forms the coupling mutual capacitance between the induction electrode of different inductive layers.
Described induction electrode is distributed in same inductive layer, forms the coupling mutual capacitance between the induction electrode of same inductive layer.
Form the coupling mutual capacitance between described induction electrode and the inductor in the inductive spacing of described induction installation.
Described coupling mutual capacitance changes with moving in the inductive spacing of an inductor on described induction installation.
Described electric mechanical switch net comprises at least one pair of mutual Uncrossed lead bar.
Described user interface device also comprises light source, and it is backlight to be used to make described button to have.
The present invention also provides a kind of portable terminal with user interface device, comprises the portable terminal body, it is characterized in that comprising a user interface device that is coupled with the central processing unit of described portable terminal; Described user interface device is made of a plurality of buttons, the induction installation that at least one is coupled with described button, electric mechanical switch net and inductive switch circuit that links to each other with described induction installation and described electric mechanical switch net that at least one is corresponding with described button; When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor; Press button when an inductor, when causing at least one electric mechanical switch net to be connected by electricity, described inductive switch circuit output is by the positional information of button and state.
Described portable terminal comprises mobile phone, telepilot, and game machine, sound is looked player, learning machine and any portable electric appts.
Described button is: cellphone standard keyboard button, and operating key.
When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor to the central processing unit of described portable terminal, described central processing unit is realized the literal input function through the processing to described trace information.
When an inductor is pressed button, when causing described electric mechanical switch net to be connected by electricity, described inductive switch circuit is exported by the positional information of button and state to the central processing unit of described portable terminal, described central processing unit is through the processing to described positional information and state, realize the cellphone standard keyboard button, and the function of operating key.
When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor to the central processing unit of described portable terminal, described central processing unit is controlled the cursor of the display of described portable terminal through the processing to described position locus information.
When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor to the central processing unit of described portable terminal, described central processing unit is converted into cursor moving on the display of portable terminal through the processing to described position locus information, thus the rolling of Control-Menu clauses and subclauses.
The present invention also provides a kind of method of making user interface device, and a plurality of buttons are provided, the induction installation that at least one and described button are coupled, down corresponding at least one the electric mechanical switch net of described button; Described induction installation and described electric mechanical switch net link to each other with an inductive switch circuit.
Beneficial effect of the present invention is, a kind of user interface device, method and portable terminal thereof are provided, and when above-mentioned new literal input and cursor control function are provided, keep the original contour structures of mobile phone, also do not lose the original function of numeric keyboard of mobile telephone.And reduce the power consumption of hand-written mobile phone, prolong the mobile phone communication stand-by time.
Description of drawings
Fig. 1 is the block structure figure of portable terminal of the present invention;
Fig. 2 is applied to the floor map of portable terminal for the present invention;
Fig. 3 is applied to the dissection surface synoptic diagram of portable terminal for the present invention;
Fig. 4 is an electric mechanical switch net synoptic diagram of the present invention;
Fig. 5 is an induction installation synoptic diagram of the present invention;
The inductive switch circuit design synoptic diagram that Fig. 6 is connected with induction installation and electric mechanical switch net for the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.The invention provides a kind of user interface device and portable terminal thereof, the method for making of described user interface also is provided.
Fig. 1 is the block structure figure of portable terminal 10 of the present invention.This portable terminal 10 comprises microprocessor 100, storer 110, a plurality of buttons 120, electric mechanical switch net 130, induction installation 140, inductive switch circuit 150.This portable terminal 10 also can comprise display 160 and communication interface 170.Display 160 is used for character display and various information.Communication interface 170 can be any device that includes transceiver configuration, and the user can communicate by this communication interface 170 and other portable terminal 10 or the network equipment.The communication interface 170 that for example has transceiver can communicate with cordless communication network.This portable terminal 10 can be a mobile phone, telepilot, and game machine, sound is looked player, learning machine and any portable electric appts.Embodiment is not roughly the same given unnecessary details for this reason for the professional of the industry.In this patent, inductor is meant that the user points and equivalent, and inductor and user's finger are used interchangeably.
One of key feature of this portable terminal 10 be electric mechanical switch net 130 and induction installation 140 by same inductive switch circuit 150 co-ordinations, and provide information to microprocessor 100 by inductive switch circuit 150.Electric mechanical switch net 130 output inductive switch circuit 150 active user's finger presses key-press status, thus startup and sense of control inductive switch circuit 150 detect induction installations 140 and produce key position and the status information that the user points.Induction installation 140 provides the relative tertiary location information of inductive switch circuit 150 active users finger with induction installation 140, thereby helps inductive switch circuit 150 more effective key position and status informations of determining user's finger reliably.
The beneficial effect of this key feature is that microprocessor 100 no longer needs ceaselessly to scan the key-press status of monitoring machine electric switch net 130 with definite user's finger, thereby reduces the electrical noise that portable terminal 10 power consumptions, reduction load and elimination produce because of scanning monitoring machine electric switch net 130.The beneficial effect of this key feature only need to be a cover inductive switch circuit 150 again, thereby reduces the complicacy of portable terminal 10 Circuits System and reduce cost.The beneficial effect of this key feature also is electric mechanical switch net 130 and induction installation 140 co-ordinations, thereby improves the reliability and the accuracy of portable terminal 10.
Fig. 2 is applied to the floor map of portable terminal 10 for the present invention.Portable terminal 10 comprises digital alphabet key zone and control key zone.First induction installation 140 that is positioned at the digital alphabet key zone forms first inductive spacing.Second induction installation 140 that is positioned at the control key zone forms second inductive spacing.Same induction installation 140 can certainly be placed digital alphabet key zone and control key zone to form unified inductive spacing.Also key zone can be divided into more a plurality of functional areas, each corresponding its corresponding induction installation 140.Induction installation 140 can be positioned over different key zones as required and form required inductive spacing.Embodiment is not roughly the same given unnecessary details for this reason for the professional of the industry.
One of key feature of this portable terminal 10 is that key zone is corresponding with induction installation 140.The beneficial effect of this key feature is that the user can both can import key position and status information at key zone, also can import the position coordinates and the trace information of user finger, thereby make the more convenient various functions of using this portable terminal 10 of control effectively of user and can be with the mode inputting word information of writing.
Fig. 3 is applied to the dissection surface synoptic diagram of portable terminal 10 for the present invention.Above-mentioned inductive spacing comprises keytop 330, induction installation 320, a plurality of spring caps 340, electric mechanical switch net 310 and printing board PCB 300.Electric mechanical switch net 310 is printed on the printing board PCB 300 by conductive material and forms.A plurality of zones of keytop 330 are designated as corresponding button.The corresponding spring caps 340 of button.Keytop 330 and induction installation 320 can be two parts independently mechanically, and also can unite two into one constitutes parts.Also can directly on induction installation 320 surfaces, demarcate a plurality of zones, stamp numeral, thereby letter character or control character be represented various buttons.
One of feature of this portable terminal 10 is a flexible cap 340 between induction installation 320 and the electric mechanical switch net 310.The beneficial effect of this key feature is that induction installation 320 can have maximum design flexibility, thereby makes this portable terminal 10 be easier to design and manufacturing.
Fig. 4 is electric mechanical switch net 130 synoptic diagram of the present invention.Electric mechanical switch net 130 is made up of the lead unit of one group of cross one another X and Y direction.When the user points downward pressing keys surface 330, be extruded 340 couples of users of spring caps and point the formation resistance.Spring caps 340 or this are as conductor, or inside surface is printed on conductive layer.Spring caps 340 is subjected to the distortion of user's finger pressure to make its conductive layer touch the lead unit of cross one another X and Y direction.This contact forms and is electrically connected and this lead unit of conducting, thus conducting electric mechanical switch net 130.This switched electrical signal sends to inductive switch circuit 150 by the lead of X and Y direction.When user's finger unclamped, the elasticity of spring caps 340 drove the button pop into position, makes it to have tactile feedback.
In this specific embodiments, the cross one another X of digital alphabet key zone and the lead unit of Y direction all are connected to the lead X of same X and Y direction simultaneously
0/ Y
0On.The user point push the Any Digit alphabet key downwards all can conducting electric mechanical switch net 130, and send same switched electrical signal to inductive switch circuit 150.Usually, arbitrary button can corresponding a plurality of cross one another X and the lead unit of Y direction, or the lead unit of the cross one another X of counterpart and Y direction only.Electric mechanical switch net 130 can be made up of the lead unit of one group of cross one another X and Y direction, also can be made up of the lead unit of many groups of cross one another X and Y direction.For example, the button 1,3,5,7,9,0 of the digital alphabet key zone of mobile phone can corresponding first group of cross one another X and the lead unit of Y direction, and button 2,4,6,8, * and # can corresponding second group of cross one another X and the lead unit of Y direction.Can improve the reliability of button location like this.
One of key feature of this electric mechanical switch net 130 is the lead unit of corresponding same group of cross one another X of a plurality of buttons and Y direction.Its beneficial effect is that the button location does not need conventional keyboard scanning circuit and operation, thereby reduces power consumption, reduces the burden of microprocessor 100 and eliminates the electrical noise that produces because of keyboard scan.
The beneficial effect of this key feature is that also this electric mechanical switch net 130 can be printed on single-layer printed circuit plate PCB300 by conductive material and realize, thereby the simplified system complicacy reduces cost, and reduces volume and improves reliability.
Fig. 5 is induction installation 140 synoptic diagram of the present invention.Induction installation 140 is made up of multilayer material.The bottom is a dielectric base.This dielectric base is preferably transparent or approximate transparent.Be furnished with the conducting strip of a plurality of rhombuses or other shape on the dielectric base, be connected to form the Y electrode layer by the lead of Y direction.One thin dielectric layer is arranged on the Y electrode layer.The conducting strip that a plurality of rhombuses or other shape are arranged on this thin dielectric layer is connected to form the X electrode layer by the lead of directions X.Directions X has 3 leads among Fig. 5, and the Y direction has 4 leads, thereby constitutes (1,1) ... 3 X, 4 coordinate systems of (3,4).The specific embodiment of the present invention is the coordinate system that forms of 6 X 8 or other number also.The conducting strip of this induction installation 140 and user point and form the ground connection inductance capacitance.Be that described induction installation is the direct earth capacitance formula.
The principle of work of this induction installation 140 also can be based on the mutual capacitance that forms between X lead and Y lead, and promptly described induction installation is a mutual capacitance type.Embodiment is not roughly the same given unnecessary details for this reason for the professional of the industry.
One of key feature of this induction installation 140 is that this induction installation 140 can produce an inductive spacing around it.Enter this inductive spacing when the user points, this induction installation 140 can generation and the corresponding electric signal of change and user's finger space position.The beneficial effect of this key feature is that the user can be mutual with a kind of mode that is different from keyboard and user interface device and portable terminal thereof, thereby more conveniently carries out the literal input effectively and function is controlled.
Fig. 6 is inductive switch circuit 150 design diagrams of the present invention.This inductive switch circuit 150 and induction installation 140, electric mechanical switch net 130 and microprocessor 100 are connected.The measurement capacitor C of inductive switch circuit 150 inside
X1, C
X2, C
X3, C
Y1, C
Y2, C
Y3, C
Y4Respectively with 3 the lead Xs of induction installation 140 at directions X
1, X
2, X
34 lead Y with the Y direction
1, Y
2, Y
3, Y
4Be connected to the driving voltage source V of inductive switch circuit 150 inside
DDOn.When the user points when the induction installation 140, user's finger forms inductance capacitance C with the conducting strip of induction installation 140X direction and Y direction respectively
SX1, C
SX2, C
SX3, C
SY1, C
SY2, C
SY3, C
SY4Each described measurement electric capacity and coupled inductance capacitance form a typical bleeder circuit, and its measurement point magnitude of voltage is determined by inductance capacitance.With the X1 wire voltage is example, V
X1=C
X1/ (C
X1+ C
SX1).This measurement point magnitude of voltage is converted to digital signal by the analog to digital converter ADC of inductive switch circuit 150 inside.The rest may be inferred for the wire voltage of other directions X and Y direction.The measurement result of all directions Xs is calculated with digital signal input X digital signal processor, draws position coordinates and trace information and the key position and the status information of the directions X of user's finger.The measurement result of all Y directions is calculated with digital signal input Y digital signal processor, draws position coordinates and trace information and the key position and the status information of the Y direction of user's finger.These inductive switch circuit 150 inside are input to the circuit that produces digital signal processor output and are referred to as sensor circuit from accepting induction installation 140.
The driving voltage source V of inductive switch circuit 150 inside
DDLink to each other with the Y direction lead of electric mechanical switch net 130.The stake resistance R of inductive switch circuit 150 inside
0Link to each other with the directions X lead of electric mechanical switch net 130.This connects and composes the pull-down switch testing circuit of standard.This pull-down switch testing circuit is sent to the switched electrical signal of button the monostalbe trigger of inductive switch circuit 150 inside.Jittering noise when this monostalbe trigger is pressed and decontroled in order to eliminate mechanical key.This monostalbe trigger also is used for the sensor circuit of synchro control inductive switch circuit 150 inside.Thereby the user points downward pressing keys surface 330 extruding spring caps 340 and connects the switched electrical signal that electric mechanical switch net 310 produces button.This switched electrical signal starts key position and the status information that this sensor circuit produces user's finger by this monostalbe trigger.If guaranteeing sensor circuit, user's finger presses button and very fast relieving, this monostalbe trigger have the enough time to produce the key position and the status information of user's finger.If the user points lasting pressing keys, this monostalbe trigger control sensor circuit continues to produce the key position and the status information of user's finger.
Inductive switch circuit 150 digital signal processor inside, monostalbe trigger is connected with microprocessor 100 with the control circuit that enables simple by or that door constitutes.This monostalbe trigger is with the key-press status of interrupt mode notice microprocessor 100 users finger.Position coordinates and trace information and the key position and the status information of this digital signal processor report microprocessor 100 users finger.Microprocessor 100 also can by inductive switch circuit 150 inside enable sensor circuit that control circuit directly starts these inductive switch circuit 150 inside with the monitor user ' finger whether near inductive spacing.Microprocessor 100 also can directly read position coordinates and trace information and the key position and the status information of user's finger from digital signal processor.
This inductive switch circuit 150 can be done multiple variation.For example, available simulation multichannel selects a circuit and sweep circuit to make the many groups directions X of induction installation 140 and the shared analog to digital converter ADC of wire voltage of Y direction.And for example, can calculate with analogue signal processor earlier, use analog to digital converter ADC again, use analog to digital converter ADC and simplify follow-up X digital signal processor and Y digital signal processor thereby reduce; For another example, X digital signal processor and Y digital signal processor can be merged into a digital signal processor.Also as, described monostalbe trigger and enable the equal available combination logical circuit of control circuit and finite state machine circuit and realize.Embodiment is not roughly the same given unnecessary details for this reason for the professional of the industry.
One of key feature of this inductive switch circuit 150 is with same set of circuit coordinates control and computing induction installation 140 and electric mechanical switch net 130.In this inductive switch circuit 150, the input of electric mechanical switch net 130 directly is used to induction installation 140 control and signal Processing.Similarly, the input signal of induction installation 140 directly is used for determining the key position and the status information of user's finger.The beneficial effect of this key feature is circuit complexity, power consumption and a cost of having simplified this inductive switch circuit 150 effectively, improves reliability and accuracy simultaneously.
The key feature of this inductive switch circuit 150 also is 100 of microprocessors inductive switch circuit 150 directly control and treatment induction installation 140 and electric mechanical switch net 130 alternately and no longer therewith.The beneficial effect of this key feature is to reduce portable terminal 10 power consumptions, reduces load and eliminates the electrical noise that produces because of scanning monitoring machine electric switch net 130.
Having the position coordinates of the above-mentioned users' finger of 100 pairs of microprocessors of hand-write recognition function and trace information and key position and status information handles, produce the candidate of a plurality of desire input characters, and desire input characters the most at last and select to be shown on the display 160 of portable terminal 10.Microprocessor 100 can utilize position coordinates and trace information and key position and status information control cursor the moving on display 160 that the user points simultaneously, thus the operation user interface.Embodiment can be with reference to author's of the present invention PCT/CN2004/00936 patented claim.
Beneficial effect of the present invention is, when handwriting input and cursor control function are provided, keeps the original contour structures of mobile phone, does not also lose the original function of numeric keyboard of mobile telephone, and reduces the power consumption of hand-written mobile phone, prolongs the mobile phone communication stand-by time.
Above embodiment only is used to the present invention is described but not is used to limit the present invention.
Claims (25)
1. a user interface device is characterized in that, comprises a plurality of buttons, the induction installation that at least one and described button are coupled, down corresponding at least one the electric mechanical switch net of described button; Described induction installation and described electric mechanical switch net link to each other with same inductive switch circuit; When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor; Press button when an inductor, when causing at least one electric mechanical switch net to be connected by electricity, described inductive switch circuit output is by the positional information of button and state.
2. user interface device according to claim 1 is characterized in that, described button comprises having the mechanical component of haptic feedback functions.
3. user interface device according to claim 1 is characterized in that, described button comprises that directly various buttons stamp numeral, thereby letter character or control character are represented in a plurality of zones of demarcating on described induction installation surface.
4. user interface device according to claim 1 is characterized in that described induction installation is capacitive, and promptly described induction installation is to produce positional information by measuring changes in capacitance.
5. user interface device according to claim 1 is characterized in that described induction installation is a resistance-type, and promptly described induction installation is the variation generation positional information by measuring resistance.
6. user interface device according to claim 1 is characterized in that described induction installation is an inductance type, and promptly described induction installation is the variation generation positional information by inductance measuring.
7. user interface device according to claim 1 is characterized in that described induction installation is an impedance type, and promptly described induction installation is to produce positional information by the variation of measuring impedance.
8. user interface device according to claim 1 is characterized in that, is made of transparent material to the described induction installation of small part.
9. user interface device according to claim 1 is characterized in that, described induction installation comprises the inductive layer that one deck at least is made of induction electrode.
10. device according to claim 9 is characterized in that, described induction electrode is the lead bar of isolating mutually.
11. device according to claim 9 is characterized in that, described induction electrode is to cross one another, disjunct lead bar.
12. device according to claim 9 is characterized in that, described induction electrode is that mutual Uncrossed lead bar connects the conducting strip that at least one has certain area; The shape that described conducting strip is printed to comprises: rectangle, circle, ellipse, triangle, rhombus or other irregular polygons.
13. device according to claim 9 is characterized in that, described induction electrode is distributed in different inductive layers, forms the coupling mutual capacitance between the induction electrode of different inductive layers.
14. device according to claim 9 is characterized in that, described induction electrode is distributed in same inductive layer, forms the coupling mutual capacitance between the induction electrode of same inductive layer.
15. device according to claim 9 is characterized in that, forms the coupling mutual capacitance between described induction electrode and the inductor in the inductive spacing of described induction installation.
16., it is characterized in that described coupling mutual capacitance changes with moving in the inductive spacing of an inductor on described induction installation according to claim 13 or 14 or 15 described user interface devices.
17. user interface device according to claim 1 is characterized in that, described electric mechanical switch net comprises at least one pair of mutual Uncrossed lead bar.
18. user interface device according to claim 1 is characterized in that also comprising light source, it is backlight to be used to make described button to have.
19. the portable terminal with user interface device comprises the portable terminal body, it is characterized in that comprising a user interface device that is coupled with the central processing unit of described portable terminal; Described user interface device is made of a plurality of buttons, the induction installation that at least one is coupled with described button, electric mechanical switch net and inductive switch circuit that links to each other with described induction installation and described electric mechanical switch net that at least one is corresponding with described button; When sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor; Press button when an inductor, when causing at least one electric mechanical switch net to be connected by electricity, described inductive switch circuit output is by the positional information of button and state.
20. the portable terminal with user interface device according to claim 19 is characterized in that described portable terminal comprises mobile phone, telepilot, and game machine, sound is looked player, learning machine.
21. the portable terminal with user interface device according to claim 19 is characterized in that described button is: mobile phone key.
22. according to any described portable terminal of claim 19 to 21 with user interface device, it is characterized in that, when sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor to the central processing unit of described portable terminal, described central processing unit is realized the literal input function through the processing to described trace information.
23. according to any described portable terminal of claim 19 to 21 with user interface device, it is characterized in that, when an inductor is pressed button, when causing described electric mechanical switch net to be connected by electricity, described inductive switch circuit is exported by the positional information of button and state to the central processing unit of described portable terminal, described central processing unit is realized the function of mobile phone key through the processing to described positional information and state.
24. according to any described portable terminal of claim 19 to 21 with user interface device, it is characterized in that, when sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor to the central processing unit of described portable terminal, described central processing unit is controlled the cursor of the display of described portable terminal through the processing to described position locus information.
25. according to any described portable terminal of claim 19 to 21 with user interface device, it is characterized in that, when sliding in the inductive spacing of an inductor at described induction installation, described inductive switch circuit is exported the position locus information of described inductor to the central processing unit of described portable terminal, described central processing unit is converted into cursor moving on the display of portable terminal through the processing to described position locus information, thus the rolling of Control-Menu clauses and subclauses.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2004/001503 WO2006066456A1 (en) | 2004-12-23 | 2004-12-23 | A inductive-switch user interface device and portable terminal thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1969252A CN1969252A (en) | 2007-05-23 |
| CN100492261C true CN100492261C (en) | 2009-05-27 |
Family
ID=36601349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800433553A Expired - Fee Related CN100492261C (en) | 2004-12-23 | 2004-12-23 | A inductive-switch user interface device and portable terminal thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100492261C (en) |
| WO (1) | WO2006066456A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387915B (en) * | 2007-09-10 | 2011-03-23 | 深圳富泰宏精密工业有限公司 | Touching keyboard control system and method |
| US8378660B2 (en) * | 2008-10-09 | 2013-02-19 | Microchip Technology Incorporated | Programmable integrated circuit device to support inductive sensing |
| CN101739190B (en) * | 2008-11-10 | 2012-09-05 | 汉王科技股份有限公司 | Hand writing display device with capacitance type touch control keys |
| CN102193697A (en) * | 2010-03-18 | 2011-09-21 | 宇辰光电股份有限公司 | Single-layer capacitive touch device |
| US20120218203A1 (en) * | 2011-02-10 | 2012-08-30 | Kanki Noriyoshi | Touch drawing display apparatus and operation method thereof, image display apparatus allowing touch-input, and controller for the display apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629677A (en) * | 1992-07-10 | 1994-02-04 | Fujitsu Ltd | Switch board unit |
| JP3939366B2 (en) * | 1992-12-09 | 2007-07-04 | 松下電器産業株式会社 | Keyboard input device |
| CN1538267A (en) * | 2003-04-14 | 2004-10-20 | 义隆电子股份有限公司 | Electric capacity type touch control board combined with key and hand writing function |
-
2004
- 2004-12-23 CN CNB2004800433553A patent/CN100492261C/en not_active Expired - Fee Related
- 2004-12-23 WO PCT/CN2004/001503 patent/WO2006066456A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1969252A (en) | 2007-05-23 |
| WO2006066456A1 (en) | 2006-06-29 |
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