WO2006066456A1 - Dispositif d'interface utilisateur a commutateurs inductifs et terminal portable associe - Google Patents

Dispositif d'interface utilisateur a commutateurs inductifs et terminal portable associe Download PDF

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Publication number
WO2006066456A1
WO2006066456A1 PCT/CN2004/001503 CN2004001503W WO2006066456A1 WO 2006066456 A1 WO2006066456 A1 WO 2006066456A1 CN 2004001503 W CN2004001503 W CN 2004001503W WO 2006066456 A1 WO2006066456 A1 WO 2006066456A1
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WO
WIPO (PCT)
Prior art keywords
sensing
user interface
button
inductive
portable terminal
Prior art date
Application number
PCT/CN2004/001503
Other languages
English (en)
Chinese (zh)
Inventor
Dong Li
Jin Guo
Original Assignee
Dong Li
Jin Guo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dong Li, Jin Guo filed Critical Dong Li
Priority to CNB2004800433553A priority Critical patent/CN100492261C/zh
Priority to PCT/CN2004/001503 priority patent/WO2006066456A1/fr
Publication of WO2006066456A1 publication Critical patent/WO2006066456A1/fr

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to the field of electronic technology, and in particular to an inductive switch-type touch keyboard for a portable terminal; and more particularly to a user interface device and a portable terminal thereof. Background technique
  • a touch screen with handwriting recognition function is also applied to a mobile phone to input text.
  • the two popular touch screens are a resistive touch screen and a capacitive touch screen.
  • the resistive touch screen is composed of a deformable resistive film and a fixed resistive film, and is separated by air.
  • the working principle is as follows: When the touch screen is touched by a pen or a user's finger, the upper layer resistor is deformed by pressure and contacts the lower layer resistor, and the lower layer resistive film can sense the position of the pen or the user's finger.
  • the second is capacitive touch screen technology, capacitive touch screen
  • the working principle is basically the same as that of the resistive touch screen.
  • the new user interface device of the touch screen solves the problem of text input.
  • the touch show can also be used to display a virtual keyboard.
  • the user needs to click the virtual button displayed on the touch screen to dial.
  • the virtual keyboard does not provide tactile feedback, and the user often finds it inconvenient to use and is prone to erroneous operations.
  • the device disclosed in US2003048257, the Nokia 6108 mobile phone has a numeric keypad on the flip cover, the user dials on the button, opens the flip of the numeric keypad, and the following is a touchpad.
  • the user can use the stylus to enter text on the touchpad.
  • the special IC controller in the handset senses the pressure change that occurs when the stylus is swiped over the touchpad. Then the position of the stroke on the XY coordinates is recorded and sent to the handwriting recognition processor. Then several candidate characters that match the input stroke are output and displayed on the display.
  • the touchpad and digital buttons at the same time, the cost of the mobile phone and the size of the mobile phone are increased.
  • US2003025679, EP1197835 discloses a similar user interface device that improves the design of both a touchpad and a keypad.
  • the touchpad is mounted directly under the keypad.
  • a flexible cap is placed under the button.
  • a corresponding hole is made on the touchpad.
  • the button is pressed in this way, the mechanical column of the button can smoothly pass through the touch panel to press the elastic cap.
  • the conductive layer of the resilient cap contacts and turns on the electrical switch.
  • the elastic cap will automatically move in place, forming a tactile feedback, prompting the user that the button action has been completed.
  • the function of the keypad is preserved, and dial-up calls are convenient.
  • the non-contact touch panel and its special IC controller measure and output the movement trajectory of the user's finger through the principle of capacitive sensing, thereby implementing the handwriting recognition function to input text on the mobile phone or moving the cursor to control the user interface.
  • the electromechanical switch and the non-contact touchpad of the button here are respectively controlled by two different independent circuits. Each of the scanning sub-circuits works independently at the same time, thereby monitoring and judging whether the user's finger presses the button, or whether the user's finger slides on the surface of the keyboard, thereby increasing power consumption.
  • US 5,917,906 discloses a user interface device that improves the design of both a touchpad and a keyboard. Add a set of elastic caps and barriers to the touchpad.
  • the barrier layer includes a set of apertures that match the elastomeric cap such that the upper surface of the elastomeric cap and barrier structure is relatively flat. They are also topped with a very flat input surface marked with a button mark. When the button mark is pressed with a pen or a user's finger, the elastic cap provides tactile feedback, and at the same time, the contact portion of the elastic cap and the touch pad generates pressure, thereby realizing the function of the button by determining the position of the pressed portion of the touch pad.
  • the handwriting input function is realized by the trajectory determination of the pressed portion of the touch panel.
  • This solution provides the functionality of handwriting input and buttons with tactile feedback.
  • the button mark is pressed with a pen or a user's finger
  • the elastic cap has a certain area, and the contact with the touch pad is not uniform. How to determine if the button is pressed is not accurate by contact force. It is easy to make a false positive. The critical value of the contact force does not correspond to the rebound point of the elastic cap, so that the user is confused about the tactile feedback, and it is easy to make a misjudgment whether the button has been pressed.
  • the force of the touchpad is not smooth in the presence or absence of the elastic cap due to the presence of the elastic cap, which makes the handwriting input feel poor.
  • the uneven force will cause the recognition of the handwriting to produce discontinuity, which reduces the recognition rate of handwriting input.
  • the elastic cap is in direct contact with the touchpad, and the deformation and movement of the elastic cap may cause wear of the touchpad. Summary of the invention
  • a user interface device includes a plurality of buttons, at least one sensing device coupled to the button, the button corresponding to at least one electromechanical switch network; the sensing device and the electromechanical switch network are connected to the same inductive switch circuit When a sensor slides in the sensing space of the sensing device, the sensing switch circuit outputs position trajectory information of the sensing object; when a sensor pushes a button, at least one electromechanical switch network is electrically connected The inductive switch circuit outputs position information and status of the pressed button.
  • the button includes a mechanical member having a tactile feedback function.
  • the keys include a plurality of areas that are directly calibrated on the surface of the sensing device, and are printed with numbers, letter symbols or control symbols to represent the various keys.
  • the sensing device is capacitive, that is, the sensing device generates position information by measuring a change in capacitance.
  • the sensing device is resistive, that is, the sensing device generates position information by measuring a change in resistance.
  • the sensing device is inductive, that is, the sensing device generates position information by measuring a change in inductance.
  • the sensing device is impedance type, that is, the sensing device generates position information by measuring a change in impedance.
  • the sensing device is constructed of a transparent or nearly transparent material.
  • the sensing device includes at least one sensing layer composed of sensing electrodes.
  • the sensing electrodes are isolated wire strips.
  • the sensing electrodes are mutually intersecting, unconnected wire strips.
  • the sensing electrodes are connected to each other by at least one conductive strip having a certain area; the conductive sheets are printed in a rectangular shape, a circular shape, an elliptical shape, a triangular shape, a diamond shape, a polygonal shape, or the like.
  • the sensing electrodes are distributed in different sensing layers, and coupling mutual capacitances are formed between the sensing electrodes of different sensing layers.
  • the sensing electrodes are distributed in the same sensing layer, and a coupling mutual capacitance is formed between the sensing electrodes of the same sensing layer.
  • the sensing electrode forms a coupling mutual capacitance with an inductive object in the sensing space of the sensing device.
  • the coupled mutual capacitance changes as a sensor moves within the sensing space on the sensing device.
  • the electromechanical switch network includes at least one pair of wire strips that do not intersect each other.
  • the user interface device also includes a light source for causing the button to have a backlight.
  • the present invention also provides a portable terminal having a user interface device, comprising a portable terminal body, comprising: a user interface device coupled to a central processor of the portable terminal; a button, at least one sensing device coupled to the button, at least one electromechanical switch network corresponding to the button, and an inductive switch circuit connected to the sensing device and the electromechanical switch network;
  • the sensing switch circuit When the object slides in the sensing space of the sensing device, the sensing switch circuit outputs position trajectory information of the sensing object; when a sensor pushes a button, causing at least one electromechanical switch network to be electrically connected, The inductive switch circuit outputs the position information and status of the pressed button.
  • the portable terminal includes a mobile phone, a remote controller, a game machine, an audio visual player, a learning machine, and any portable electronic device.
  • buttons are: a standard keyboard button of a mobile phone, and a control button.
  • the sensing switch circuit When a sensor is slid in the sensing space of the sensing device, the sensing switch circuit outputs position trajectory information of the sensor to a central processing unit of the portable terminal, and the central processor passes the The processing of the track information realizes the text input function.
  • the inductive switch circuit When a sensor pushes a button, causing the electromechanical switch network to be electrically turned on, the inductive switch circuit outputs a position information and a state of a pressed button to a central processing unit of the portable terminal.
  • the central processing unit processes the position information and status of the mobile phone to realize the functions of the standard keyboard keys of the mobile phone and the control keys.
  • the sensing switch circuit When a sensor is slid in the sensing space of the sensing device, the sensing switch circuit outputs position trajectory information of the sensor to a central processing unit of the portable terminal, and the central processor passes the Processing of position trajectory information, controlling cursor 0 of the display of the portable terminal
  • the sensing switch circuit When a sensor is slid in the sensing space of the sensing device, the sensing switch circuit outputs position trajectory information of the sensor to a central processing unit of the portable terminal, and the central processor passes the The processing of the position trajectory information is converted into a movement of the cursor on the display of the portable terminal, thereby controlling the scrolling of the menu item.
  • the present invention also provides a method of fabricating a user interface device, providing a plurality of buttons, at least one sensing device coupled to the button, the button corresponding to at least one electromechanical switch network; the sensing device and the electromechanical device
  • the switch network is connected to an inductive switching circuit.
  • the invention has the beneficial effects of providing a user interface device, a method and a portable terminal thereof, and providing the above-mentioned new character input and cursor control functions while maintaining the original appearance structure of the mobile phone without losing the mobile phone numeric keypad.
  • Original features And reduce the power consumption of handwritten mobile phones, and extend the standby time of mobile phone calls.
  • FIG. 1 is a structural block diagram of a portable terminal of the present invention
  • FIG. 2 is a schematic plan view showing the application of the present invention to a portable terminal
  • FIG. 3 is a schematic view showing an anatomical surface of the present invention applied to a portable terminal
  • FIG. 4 is a schematic view of an electromechanical switch network of the present invention.
  • Figure 5 is a schematic view of the sensing device of the present invention.
  • Fig. 6 is a schematic diagram showing the design of an inductive switching circuit connected to an induction device and an electromechanical switch network according to the present invention.
  • the invention provides a user interface device and a portable terminal thereof, and also provides a method for manufacturing the user interface.
  • Fig. 1 is a block diagram showing the structure of a portable terminal 10 according to the present invention.
  • the portable terminal 10 includes a microprocessor 100, a memory 110, a plurality of buttons 120, an electromechanical switch network 130, an inductive device 140, and an inductive switch circuit 150.
  • the portable terminal 10 can also include a display 160 and a communication interface 170.
  • the display 160 is used to display characters and various information.
  • Communication interface 170 can be any device that includes a transceiver structure through which a user can communicate with other portable terminals 10 or network devices.
  • communication interface 170 having a 4-transmitter can communicate with a wireless communication network.
  • the portable terminal 10 can be a mobile phone, a remote control, a game machine, a video playback H, a learning machine, and any portable electronic device.
  • an inductive object refers to a user's finger and its equivalent, and the inductive object and the user's finger are used interchangeably.
  • the electromechanical switch network 130 and the sensing device 140 coordinate operation through the same inductive switching circuit 150 and provide information to the microprocessor 100 via the inductive switching circuit 150.
  • the electromechanical switch network 130 outputs an inductive switch circuit 150.
  • the current user's finger presses the button state, thereby activating and controlling the inductive switch circuit 150 to detect the inductive device 140 and generate button position and status information of the user's finger.
  • the sensing device 140 provides relative spatial position information of the sensing switch circuit 150 of the current user finger and the sensing device 140, thereby assisting the sensing switch circuit 150 to more effectively and reliably determine the button position and status information of the user's finger.
  • the beneficial effect of this key feature is that the microprocessor 100 no longer needs to continuously scan and monitor the electromechanical switch network 1 30 to determine the button state of the user's finger, thereby reducing the power consumption of the portable terminal 10, reducing the load, and eliminating the electromechanical monitoring due to scanning.
  • the electrical noise generated by the switching network 1 30 is that only one set of inductive switching circuit 150 is needed, thereby reducing the complexity and cost of the portable terminal 10 circuit system.
  • the beneficial effect of this key feature is also that the electromechanical switch network 130 and the sensing device 140 work in coordination to improve the reliability and accuracy of the portable terminal 10.
  • FIG. 2 is a schematic plan view showing the application of the present invention to the portable terminal 10.
  • Portable terminal 10 package Includes alphanumeric keypad and control keypad.
  • the first sensing device 140 located in the alphanumeric keypad forms a first sensing space.
  • the second sensing device 140 located in the control button area forms a second sensing space.
  • the same sensing device 140 can be placed in the alphanumeric keypad and the control button region to form a unified sensing space.
  • the keypad can also be divided into more functional areas, each corresponding to its corresponding sensing device 140.
  • the sensing device 140 can be placed in different button areas as needed to form a desired sensing space. For the professionals in the industry, the specific implementation methods are similar and will not be described.
  • the button area corresponds to the sensing device 140.
  • the beneficial effect of this key feature is that the user can input the button position and status information in the button area, and input the position coordinates and track information of the user's finger, thereby enabling the user to more conveniently and effectively use various types of controlling the portable terminal 10. Function and can input text information by writing.
  • Fig. 3 is a schematic view showing the anatomical surface of the portable terminal 10 of the present invention.
  • the sensing space includes a button surface 330, an inductive device 320, a plurality of resilient caps 340, an electromechanical switch grid 310, and a printed circuit board PCB300.
  • the electromechanical switch grid 310 is formed by printing a conductive material on the printed circuit board PCB300.
  • a plurality of areas of the button surface 330 are designated as corresponding buttons.
  • the button corresponds to the elastic cap 340.
  • the button surface 330 and the sensing device 320 may be mechanically separate components or may be combined to form one component. It is also possible to calibrate a plurality of areas directly on the surface of the sensing device 320, and to print numbers, letter symbols or control symbols to represent various keys.
  • One of the features of the portable terminal 10 is that there is a resilient cap 340 between the sensing device 320 and the electromechanical switch net 310.
  • the benefit of this key feature is that the sensing device 320 can have maximum design flexibility, making the portable terminal 10 easier to design and manufacture.
  • the electromechanical switch network 130 is composed of a set of wire units that cross each other in the X and Y directions.
  • the resilient cap 340 is either a conductor itself or has a conductive layer printed on its inner surface.
  • the elastic cap 340 is deformed by the pressure of the user's fingers such that the conductive layer contacts the mutually intersecting X and Y direction wire units. This contact forms an electrical connection and conducts the wire unit, thereby conducting the electromechanical switch net 130.
  • This switching electrical signal is sent to the inductive switching circuit 150 through the X and Y direction wires.
  • the elasticity of the elastic cap 340 causes the button to spring back to have a tactile feedback.
  • the mutually intersecting X and Y direction wire units of the alphanumeric keypad are simultaneously connected to the same X and Y direction wires Xo/Yo.
  • the user presses down any alphanumeric finger 4 to turn on the electromechanical switch network 130, and sends the same switch electrical signal to the sense switch circuit 150.
  • any of the buttons may correspond to a plurality of interleaved X and ⁇ direction wire units, or only X and ⁇ direction wire units that intersect with each other.
  • the electromechanical switch net 130 may be composed of a set of interleaved X and ⁇ direction wire units, or a plurality of sets of mutually intersecting X and ⁇ direction wire units.
  • the keys 1, 3, 5, 7, 9, 0 of the alphanumeric keypad of the mobile phone may correspond to the first set of mutually intersecting X and ⁇ direction wire units
  • the buttons 2, 4, 6, 8 , * and # may Corresponding to the second set of mutually intersecting X and ⁇ direction wire units. This improves the reliability of button positioning.
  • buttons correspond to the same set of X and ⁇ direction wire elements that intersect each other.
  • the beneficial effect is that the key positioning does not require conventional keyboard scanning circuitry and operation, thereby reducing power consumption, reducing the burden on the microprocessor 100, and eliminating electrical noise generated by the scanning keyboard.
  • the electromechanical switch grid 130 can be implemented from a conductive material printed on a single layer printed circuit board PCB300, thereby simplifying system complexity, reducing cost, reducing volume, and improving reliability.
  • FIG. 5 is a schematic diagram of the sensing device 140 of the present invention.
  • the sensing device 140 is composed of a plurality of layers of material.
  • the bottom layer is an insulating substrate.
  • the insulating substrate is preferably transparent or nearly transparent.
  • a plurality of diamond-shaped or other-shaped conductive sheets are disposed on the insulating substrate, and the erbium electrode layers are formed by wire connections in the ⁇ direction.
  • the ruthenium electrode layer has a thin insulating layer.
  • the thin insulating layer has a plurality of conductive pieces of a diamond shape or other shape, and the X-electrode layer is formed by connecting the wires in the X direction.
  • the conductive sheet of the sensing device 140 forms a grounding feeling with the user's finger Should be a capacitor. That is, the sensing device is grounded and capacitive.
  • the operating principle of the sensing device 140 can also be based on the mutual capacitance formed between the X wire and the Y wire, that is, the sensing device is mutually capacitive.
  • the specific implementation methods are similar and will not be described.
  • the sensing device 140 creates an inductive space around it. When the user's finger enters the sensing space, the sensing device 140 generates and changes an electrical signal corresponding to the spatial position of the user's finger.
  • This key feature has the beneficial effect that the user can interact with the user interface device and its portable terminal in a manner different from the keyboard keys, thereby facilitating efficient text input and function control.
  • FIG. 6 is a schematic diagram of the design of the inductive switch circuit 150 of the present invention.
  • the inductive switching circuit 150 is coupled to the sensing device 140, the electromechanical switching network 130, and the microprocessor 100.
  • the measuring capacitances Cxi, C X2 , C X3 , Cy , Cy 2 , Cy 3 , ( ⁇ respectively in the sensing switch circuit 150 respectively sense the three wires X, X 2 , X 3 and Y in the X direction
  • the four wires ⁇ , ⁇ 2 , ⁇ 3 , ⁇ 4 are connected to the driving voltage source V DD inside the sensing switch circuit 150.
  • the user's finger When the user's finger approaches the sensing device 140, the user's finger is electrically conductive with the sensing device 140X direction and the Y direction, respectively.
  • the chip forms the sensing capacitors C SX1 , C S x2 , Csx3 , CSYI , C SY2 ,
  • Each of the measuring capacitors and the sensing capacitor connected thereto form a typical voltage dividing circuit whose measuring point voltage value is determined by the sensing capacitance.
  • V X1 C X1 / ( Cx! + Csxi).
  • This measurement point voltage value is converted to a digital signal by an analog-to-digital converter ADC inside the inductive switching circuit 150.
  • Other wire voltages in the X and Y directions are analogous. All X-direction measurement results are input into the X-digital signal processor by digital signals, and the position coordinates and trajectory information of the X-direction of the user's finger and the button position and status information are obtained.
  • All measurement results in the Y direction are calculated by digital signal input Y digital signal processor, and the position coordinates and track information of the user's finger in the Y direction and the button position and state information are obtained.
  • the circuit inside the inductive switching circuit 150 from the receiving sensing device 140 to the output of the digital signal processor is collectively referred to as an inductive device.
  • the driving voltage source V DD inside the inductive switching circuit 150 and the Y direction of the electromechanical switch net 130 Lines are connected.
  • This connection constitutes a standard pull-down switch detection circuit.
  • the pull-down switch detection circuit transmits the switch electrical signal of the button to the single-state trigger inside the inductive switch circuit 150.
  • This one-shot is used to eliminate jitter noise when the mechanical button is pressed and released. This one-shot is also used to synchronously control the sensing circuitry inside the inductive switching circuit 150.
  • the user's finger presses down the button surface 330 to squeeze the resilient cap 340 and turn on the electromechanical switch net 310 to generate a switch electrical signal for the button.
  • the switch electrical signal activates the sensing circuit through the one-shot to generate the button position and status information of the user's finger. If the user presses the button and quickly releases it, the one-shot trigger ensures that the sensing circuit has enough time to generate the button position and status information of the user's finger. If the user's finger continues to press the button, the one-shot trigger control sensing circuit continues to generate the button position and status information of the user's finger.
  • a digital signal processor internal to the inductive switching circuit 150, a monostable flip-flop and an enable control circuit formed by a simple OR gate are coupled to the microprocessor 100.
  • This one-shot trigger informs the microprocessor 100 of the button state of the user's finger in an interrupted manner.
  • the digital signal processor reports the position coordinates and track information of the user's finger of the microprocessor 100 and the button position and status information.
  • the microprocessor 100 can also directly activate the sensing circuit inside the inductive switching circuit 150 through the enabling control circuit inside the inductive switching circuit 150 to monitor whether the user's finger is close to the sensing space.
  • the microprocessor 100 can also directly read the position coordinates and track information of the user's finger and the button position and status information from the digital signal processor.
  • This inductive switching circuit 150 can be varied in many ways. For example, a plurality of sets of X-direction and Y-direction wire voltages of the sensing device 140 can be shared by the analog-to-digital converter ADC by an analog multiplex circuit and a scanning circuit. Another example is that the analog signal processor can be used for calculation, and then the analog-to-digital converter ADC is used, thereby reducing the use of the analog-to-digital converter ADC and simplifying the subsequent X digital signal processor and the Y digital signal processor; for example, the X digital signal The processor and the Y digital signal processor can be combined into one digital signal processor.
  • both the monostable flip-flop and the enable control circuit can be implemented with a combinational logic circuit and a finite state machine circuit.
  • the specific implementation methods are similar and will not be described.
  • One of the key features of the inductive switching circuit 150 is to coordinate the control and computational processing of the sensing device 140 and the electromechanical switching network 130 with the same set of circuits.
  • the input of the electromechanical switching network 130 is used directly for control and signal processing of the sensing device 140.
  • the input signal of the sensing device 140 is used directly to determine the button position and status information of the user's finger.
  • the beneficial effect of this key feature is to effectively simplify the circuit complexity, power consumption, and cost of the inductive switching circuit 150 while improving reliability and accuracy.
  • a key feature of the inductive switching circuit 150 is that the microprocessor 100 only interacts with the inductive switching circuit 150 and no longer directly controls the processing sensing device 140 and the electromechanical switching network 130.
  • the beneficial effects of this key feature are reduced power consumption of the portable terminal, reduced load, and elimination of electrical noise generated by the scanning monitoring electromechanical switch network 130.
  • the microprocessor 100 having the handwriting recognition function processes the position coordinates and the track information of the user's finger, the button position and the state information, generates a plurality of candidate words for inputting characters, and finally displays the desired input text to the portable terminal 1 0 on display 160.
  • the microprocessor 100 can control the movement of the cursor on the display 160 by using the position coordinates and track information of the user's finger and the button position and status information, thereby operating the user interface.
  • the invention has the beneficial effects of providing the handwritten character input and the cursor control function, maintaining the original appearance structure of the mobile phone, not losing the original function of the mobile phone digital keyboard, and reducing the power consumption of the handwritten mobile phone, and prolonging the mobile phone call standby. time.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention se rapporte à des claviers à effleurement et à commutateurs inductifs présents sur des terminaux portables. Il est bien connu que si l'on conserve les fonctions d'origine du clavier numérique sur un téléphone cellulaire, la consommation du téléphone cellulaire augmente lorsque l'utilisateur saisit manuellement des mots, et la durée en mode repos ainsi que la durée en mode actif du téléphone cellulaire sont réduites. Pour résoudre ce problème, l'invention se rapporte à une interface utilisateur à commutateurs inductifs ainsi qu'à un terminal portable correspondant, comprenant de multiples touches, au moins un dispositif inducteur assurant le couplage avec chaque touche, et au moins un réseau de commutateurs électromécaniques correspondant à chacune des touches. Les dispositifs inducteurs et les réseaux de commutateurs électromécaniques sont connectés au même circuit à commutateurs inductifs. Lorsqu'un élément inductif coulisse à l'intérieur de l'espace inductif dudit dispositif inductif, le circuit à commutateurs inductifs délivre en sortie des informations de suivi relatives à la position dudit objet inductif. De même, lorsqu'un objet inductif appuie sur une touche de sorte qu'au moins l'un des réseaux de commutateurs électromécaniques soit mis sous tension, le circuit à commutateurs inductifs génère des informations relatives à la position et à l'état de la touche qui a été comprimée. Cette invention présente l'avantage de maintenir la structure externe d'origine du téléphone cellulaire et d'assurer simultanément des fonctions du type saisie manuelle de mots et commande de curseur.
PCT/CN2004/001503 2004-12-23 2004-12-23 Dispositif d'interface utilisateur a commutateurs inductifs et terminal portable associe WO2006066456A1 (fr)

Priority Applications (2)

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CNB2004800433553A CN100492261C (zh) 2004-12-23 2004-12-23 一种感应开关式用户界面装置及其便携式终端
PCT/CN2004/001503 WO2006066456A1 (fr) 2004-12-23 2004-12-23 Dispositif d'interface utilisateur a commutateurs inductifs et terminal portable associe

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PCT/CN2004/001503 WO2006066456A1 (fr) 2004-12-23 2004-12-23 Dispositif d'interface utilisateur a commutateurs inductifs et terminal portable associe

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CN102193697A (zh) * 2010-03-18 2011-09-21 宇辰光电股份有限公司 单层电容式触控装置
CN104636049A (zh) * 2011-02-10 2015-05-20 夏普株式会社 显示装置、其操作方法以及控制装置

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CN101387915B (zh) * 2007-09-10 2011-03-23 深圳富泰宏精密工业有限公司 触摸式键盘控制系统及方法
US8154317B2 (en) * 2008-10-09 2012-04-10 Microchip Technology Incorporated Integrated circuit device to support inductive sensing
CN101739190B (zh) * 2008-11-10 2012-09-05 汉王科技股份有限公司 带有电容式触控按键的手写显示装置

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CN1538267A (zh) * 2003-04-14 2004-10-20 义隆电子股份有限公司 结合了按键和手写功能的电容式触控板

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102193697A (zh) * 2010-03-18 2011-09-21 宇辰光电股份有限公司 单层电容式触控装置
CN104636049A (zh) * 2011-02-10 2015-05-20 夏普株式会社 显示装置、其操作方法以及控制装置

Also Published As

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CN1969252A (zh) 2007-05-23
CN100492261C (zh) 2009-05-27

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