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7561144 |
Touch-sensitive input device and fault detection device for a touch-sensitive input device, in particular for medico-technical devices
The invention relates to a resistive touch-sensitive device for detecting a short-term or long-term dysfunction by means of measuring devices ( 32,33 ), a monitoring device ( 34 ) and a memory ( 35...
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7515138 |
Distinguishing vibration signals from interference in vibration sensing touch input devices
The present invention discloses systems and methods for use with vibration sensing touch input devices that distinguish signals derived from vibrations on a touch plate due to a touch input from...
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7492359 |
Linear compensation method for touch control systems
A linear compensation method for touch control systems aims to provide an accurate correction for the depressing electric field that generates signal sources in a touch control system. Through a...
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7479951 |
Device for controlling touch panel
Disclosed herein is a device including a differential amplification unit for supplying current to the touch panel; a signal amplification unit for amplifying the output voltage of the differential...
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7436393 |
Touch panel for display device
A touch panel for a display device integrates functionality provided by resistive-type and EM-type touch panels. The touch panel is integrated with the display device and includes a resisitve-type...
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7375656 |
Circuit configuration for a capacitive touch switch
A circuit configuration for a capacitive touch switch contains at least one sensor circuit with a capacitive sensor element which changes its capacitance value when touched, and an evaluation...
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7327354 |
Low power dissipation touch plane interface circuit
A method of determining a type of touch plane operator input device comprises sensing the impedance across first and second terminals of a touch plane operator input device to distinguish the touch...
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7268774 |
Tracking motion of a writing instrument
Motion of a writing instrument is tracked from sensors located in the vicinity. The signals generated from the sensors are processed and used in a wide variety of ways.
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7177132 |
Method and apparatus for determining a switching signal state
A technique for controlling a switching circuit includes one or more sensing circuits that generate signals based upon the presence of an actuating object and upon a randomly applied strobe signal....
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7158122 |
Calibration of force based touch panel systems
A method and system are provided to correct inaccuracies in touch location determination associated with mechanical distortion of the touch screen. Calibration parameters are provided for a touch...
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7154481 |
Touch sensor
A touch sensing method and a touch sensing device are described for sensing a location of a touch. When the touch sensing device is touched, a first conductive layer disposed on a supporting layer...
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7116315 |
Water tolerant touch sensor
A method, computer readable medium, and touch sensor system for reducing the effects of contaminants on an acoustic touch sensor. Acoustic energy is transmitted across the touch sensor substrate....
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7106311 |
Correction of alignment and linearity errors in a stylus input system
A method and system for correcting alignment and linearity errors in devices using a finger or stylus input device with a display device interactively coupled to a digitizer is disclosed. Touching...
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7098897 |
Touch screen assembly and display for an electronic device
A touch screen assembly includes a first outer layer ( 102 ) and a second outer layer ( 110 ) separated by a separator layer ( 118 ). The first and second outer layers are transparent, and the...
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7094978 |
System and method for generating a high speed estimated position output for a position encoder
A system and method for generating an approximated position signal that is updated and output at a rate higher than a base rate of actual position signals measured using a position transducer. The...
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7053886 |
Liquid crystal panel device having a touch panel and method for driving the same
A liquid crystal panel device having a touch panel, includes a liquid crystal panel, a touch panel positioned on the liquid crystal panel, a signal line having one end connected to the liquid...
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7012199 |
COORDINATES CORRECTION APPARATUS, COORDINATES CORRECTION PARAMETER CALCULATION APPARATUS, COORDINATES CORRECTION METHOD, COORDINATES CORRECTION PARAMETER CALCULATION METHOD, MEMORY MEDIUM FOR STORING COORDINATES CORRECTION CONTROL PROGRAM, AND MEMORY MEDIUM FOR STORING COORDINATES CORRECTION PARAMETER CALCULATION PROGRAM
Correction of coordinates input by a user through an input device is effected using coordinate correction parameters. To calculate the coordinate correction parameters, a plurality of reference...
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6998545 |
Touch and proximity sensor control systems and methods with improved signal and noise differentiation
The present invention discloses a novel new technique for detecting an intended activation of a touch sensor in the presence of noise. An algorithm is described that compares a cumulative deviation...
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6906695 |
Touch control apparatus and touch control method that can be applied to electronic instrument
A touch curve memory 110 stores therein a touch curve formed by velocity values corresponding to touch data generated by a keyboard device 20 . A correction coefficient generator 10 generates...
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6885365 |
Glass touch sensing circuit
A glass touch sensing circuit which is capable of accurately detecting a sense signal resulting from a user's touch under no influence of variations in temperature. The glass touch sensing circuit...
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6875933 |
Methods and apparatus for configuring a writing surface
An apparatus including a writing surface, such as a whiteboard, is configured to accept various elements of an electronic transcription system. In one embodiment of the invention, a writing...
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6849810 |
Antenna loop structure
An antenna loop structure applicable to a digitizer tablet is capable of reducing effect of electromagnetic interference (EMI) by aggregating a plurality of antenna loops, wherein each antenna loop...
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6816153 |
Touch-panel device
A touch-panel device including a conductive membrane, current measurement resistors which are connected at one end to both ends of the conductive membrane and which are connected at the other end...
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6806869 |
Data processing system utilizing discrete operating device
Interface screen 30 is displayed on display 3 of data processing system 1 ; interface screen 30 is a composite screen of an interface screen of open Layer L 1 on which data processing...
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6784876 |
Coordinate reading device
Y coil Y 1 is mounted on the attachment panel 24 so that its long sides Y 1 f and Y 1 g follow the front surface 24 n , and is bent at a first edge 24 a 1 onto an edge surface 24 a , and...
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6781577 |
Capacitive sensor-based input device
A capacitive sensor-based input device for coordinate data input includes an input unit that detects the variation of capacitances at a plurality of detection points, and a control unit that...
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6731270 |
Piezoelectric transducer for data entry device
A piezoelectric transducer is provided, in which a piezoelectric shell has conductive layers on the outside and inside of the shell, which are adapted to be connected to a signal input source. When...
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6727896 |
Correction of alignment and linearity errors in a stylus input system
A method and system for correcting alignment and linearity errors in devices using a finger or stylus input device with a display device interactively coupled to a digitizer is disclosed. Touching...
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6703570 |
Digital pen using ultrasonic tracking
A digital pen that has a writing tip includes an ultrasonic (US) transducer on a pen body that generates frames of US pulses toward a receiver base in response to an infrared (IR) synchronizing...
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6683601 |
Electronic apparatus including pen
Disclosed is a user-friendly electronic apparatus having a pen and a panel as the input devices. The pen is tethered to the apparatus by a cord on which position data is recorded along its length...
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6661408 |
Touch screen capable of isolating noise signals
A touch screen capable of isolating noise signals is mainly a touch screen installing at the front side of a liquid crystal display (LCD) screen or cathode ray tube (CRT) for eliminating...
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6633280 |
Touch panel device
There are provided microphones 11 A, 11 B arranged at least any two different locations of edge portions of a touch panel 10, for sensing a ultrasonic signal propagated through a space, an...
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6603464 |
Apparatus and method for record keeping and information distribution
A method of capturing data having the steps of writing on a form with a pen to leave an image on the form, scanning the written image as the written image is being written, and storing the scanned...
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6506983 |
Algorithmic compensation system and method therefor for a touch sensor panel
A general method is described for producing an inexpensive touchscreen system that provides accurate positional information and compensates for manufacturing variations without complicated sensor...
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6489575 |
Sensor panel position coordinates signal detecting circuit
A position coordinates signal detecting circuit of a sensor panel is provided. The position coordinates signal detecting circuit of the sensor panel according to the present invention includes...
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6456952 |
System and method for touch screen environmental calibration
A system and method compensates for drift in electronic touch screens. A plurality of touch areas and drift areas are defined for a touch screen. From location coordinates generated by the screen,...
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6424338 |
Speed zone touchpad
A touchpad pointing device dynamically adjusts cursor control gain characteristics based on the x-y coordinates at which the finger first touches the touchpad for a given cursor control task. In...
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6380930 |
Laptop touchpad with integrated antenna
An antenna for wireless communication into a touchpad module. A touchpad module, which can be inserted into an aperture in a laptop computer, includes a touch sensor for detecting touch in a touch...
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6373475 |
Converter for resistive touchscreens
A converter for connection between an electrographic sensor and an electrographic controller, and comprising: (a) a first set of contacts for connection to the sensor; (b) a second set of contacts...
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6366278 |
Camera system
A picture recording device includes at least one photodetector for each picture element to be recorded before which one focusing element is arranged for forming an image of each element of the...
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6366866 |
Coordinates detecting apparatus for independently correcting coordinates
In a coordinates detecting apparatus including a tablet for detecting X and Y coordinates and a correcting circuit for correcting the X and Y coordinates detected from the tablet, a parameter used...
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6359616 |
Coordinate input apparatus
A coordinate input apparatus for correcting the shift in an input coordinate system between different coordinate input apparatuses relative to an opening of each apparatus. A data processing block...
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6353193 |
Electronic whiteboard system and method
An eraser for use on an electronic whiteboard with a protrusion area on the erasing surface forming a convex area on the erasing surface for establishing a positive point of contact with the...
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6340979 |
Contextual gesture interface
The system and method consistent with the present invention provides a contextual gesture interface for electronic devices. The contextual gesture interface activates a function corresponding to...
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6215477 |
Touch sensitive display panel
A touch sensitive display panel comprises a noisy display panel having a display screen on which images are displayed. An electronic writeboard is provided on the noisy display panel and overlies...
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6130665 |
Touch screen handling
The present invention discloses a data input device including a touch screen. The touch screen has two information display levels. A first level displays a virtual alphanumeric keypad which allows...
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6124848 |
Method and apparatus for reducing flat panel display horizontal scan signal interference in the electrostatic pen operated digitizer
A flat panel display is coupled with an electrostatic stylus driven digitizing panel to produce a display and digitizer system having an interference control feature. The interference control...
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6016140 |
Automatic touch screen calibration
A system and method for automatically recalibrating a resistive touch screen. The resistance of a resistive touch screen layer is subject to change over time, while the resistance of silver bus...
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6005200 |
Compensation of stylus signals in digitizing tablet
The invention concerns digitizing tablets in portable computers, wherein position of a stylus, located on the tablet, is computed. The invention corrects for various errors which creep into the...
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5994651 |
High voltage stylus for portable computers
The invention concerns a stylus for producing a high-voltage, sinusoidal signal for an electrostatic digitizing pad. The high voltage is obtained by applying a sine wave to one lead of the primary...
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