| N-trig Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110254807 | NOISE REDUCTION IN DIGITIZER SYSTEM - A digitizer that includes plurality of detecting elements for detecting an electromagnetic signal. A method for noise reduction in the digitizer includes determining a location of a stylus with a known frequency of emission over a first sampling period, sampling output from the plurality of detecting elements substantially simultaneously over a second sampling period, the second sampling period subsequent to the first sampling period, identifying detecting elements with output above a defined threshold in a selected frequency that is close to but different than the known frequency, wherein the detecting elements identified are identified based on the output sampled over the second sampling period, selecting from the detecting elements identified in the second sampling period, a detecting element that is spaced away from the location of the stylus, wherein the detecting element selected is selected as a candidate carrier of mere noise, and reducing output sampled in the second sampling period of at least one other detecting element in accordance with output of the detecting element selected as a candidate carrier of mere noise. | 10-20-2011 |
| 20100155153 | DIGITIZER, STYLUS AND METHOD OF SYNCHRONIZATION THEREWITH - A method for operating a digitizer with an autonomous asynchronous stylus includes sampling outputs from a digitizer, detecting from the outputs at least one pulsed signal transmitted from an autonomous asynchronous stylus at a defined rate, determining a location of the stylus interaction with respect to the digitizer, and tracking stylus interaction with the digitizer over subsequent pulsed signals transmitted from the stylus. | 06-24-2010 |
| 20100051356 | PRESSURE SENSITIVE STYLUS FOR A DIGITIZER - A pressure sensitive stylus, comprises a movable tip that recedes within a housing of the stylus in response to user applied contact pressure, wherein a displacement of the tip along an axis on which it recedes is a function of the applied contact pressure, and an optical sensor enclosed within the housing for optically sensing the displacement of the tip and for providing output in response to the sensing. | 03-04-2010 |
| 20090322696 | METHOD FOR ASSEMBLING A DIGITIZER SENSOR - A digitizer assembly includes a transparent sensor patterned with conductive elements within at least one layer, a PCB or the like patterned with conductive elements positioned along at least one edge of the transparent sensor, wherein the conductive elements at least partially match the conductive elements on the transparent sensor, and a double sided adhesive positioned between the transparent sensor and the PCB operative to mount the PCB on to the transparent sensor. | 12-31-2009 |
| 20090322352 | APPARATUS FOR OBJECT INFORMATION DETECTION AND METHODS OF USING SAME - A system for determining information regarding at least one object, comprising: a sensor sensitive to capacitive coupling; at least one object adapted to create a capacitive coupling with the sensor when at least one signal is input to the sensor; a detector adapted to measure at least one output signal of said sensor associated with the at least one object, wherein the output signal associated with the at least one object is an object information code. | 12-31-2009 |
| 20090273579 | MULTI-TOUCH DETECTION - A method for multi-touch detection in a touch input device comprising a grid based sensor, the method comprises sampling outputs from a grid based sensor over a first stage of detection, selecting sensor lines based on the sampled outputs, scanning the selected sensor lines along one axis of the grid based sensor over a second stage of detection, and determining positions of user interaction based on outputs sampled in response to scanning the selected sensor lines during the second stage of detection. | 11-05-2009 |
| 20090184939 | GRAPHICAL OBJECT MANIPULATION WITH A TOUCH SENSITIVE SCREEN - A method for graphical object manipulation using a touch sensitive screen, the method comprises detecting a presence of two user interactions within a defined boundary of a graphical object displayed on the touch sensitive screen, determining position of each of the two user interactions with respect to the graphical object, detecting displacement of at least one of the two user interactions, and manipulating the graphical object based on the displacement to maintain the same position of each of the two user interactions with respect to the graphical object. | 07-23-2009 |
| 20090128516 | MULTI-POINT DETECTION ON A SINGLE-POINT DETECTION DIGITIZER - A method for recognizing a multi-point gesture provided to a digitizer, the method comprises: detecting outputs from a digitizer system corresponding to a multi-point interaction, the digitizer system including a digitizer sensor; determining a region incorporating possible locations derivable from the outputs detected; tracking the region over a time period of the multi-point interaction; determining a change in at least one spatial feature of the region during the multi-point interaction; and recognizing the gesture in response to a pre-defined change. | 05-21-2009 |
| 20090127005 | SYSTEM AND METHOD FOR DETECTION WITH A DIGITIZER SENSOR - A method for detection on a digitizer sensor, the method comprises simultaneously transmitting orthogonal signals having the same frequency on at least two conductors of a digitizer sensor; sampling a signal on at least one other conductor crossing the at least two conductors, wherein the signal is responsive to capacitive coupling at cross-junctions formed between the at least two conductors and at least one other conductor; decomposing the sampled signal into orthogonal components; and analyzing the orthogonal components to detect user interaction at each cross junction. | 05-21-2009 |
| 20090107736 | LAMINATED DIGITIZER SENSOR - A laminated transparent digitizer sensor assembly comprises a first transparent layer patterned on one surface with a first array of conductors and an array of conductive elements electrically isolated from the first array of conductors; and a second transparent layer patterned on one surface with a second array of conductors; wherein the first and second layers are laminated with non-conducting transparent laminating material, such that the patterned surfaces face each others and wherein conductive material is provided between the conductive elements and conductors of the second array of conductors. | 04-30-2009 |
| 20090095540 | Method for palm touch identification in multi-touch digitizing systems - A method for classifying input to a multi-touch sensitive digitizer that is obtained from a body part as inputs invalid for user interaction and inputs valid for user interaction comprises: identifying a plurality of discrete regions of input to a digitizer sensor; determining spatial relation between at least two of the regions; and classifying one of the at least two regions as either valid input region or invalid input region based on the spatial relation determined between the at least two regions. | 04-16-2009 |
| 20090078476 | Method for identifying changes in signal frequencies emitted by a stylus interacting with a digitizer sensor - A method for dynamically updating at least one pre-defined value of a parameter used to identify at least one operational mode of an object for user interaction with a digitizer sensor during interaction with the digitizer sensor comprises detecting signal outputs from a plurality of sensing elements of a digitizer sensor during user interaction with the digitizer sensor; characterizing a pattern formed by the signal outputs from the plurality of sensing elements; identifying a pre-defined event associated with an operational mode of the object based on the pattern; determining a value of the parameter from the signal outputs in response to identification of the pre-defined event; and updating the pre-defined value used to identify the operational mode based on the value of the parameter determined from the identified event. | 03-26-2009 |
| 20090027354 | Automatic switching for a dual mode digitizer - An apparatus for detecting a plurality of user interactions, comprising: at least one detector for sensing the user interactions, a respective controller, associated with each of the detectors, for finding positions of the user interactions, and a switcher, associated with the controllers, for handling the user interactions, according to a defined policy. | 01-29-2009 |
| 20090025987 | System and method for diagnostics of a grid based digitizer - A method for testing a digitizer to determine an operative property of the digitizer, wherein the digitizer includes a sensor grid, comprises providing an input signal on a first portion of the sensor grid, detecting at least one output signal in a second portion of the sensor grid responsive to the input signal in the first portion, and determining at least one operative property of the sensor based on the at least one output signal, wherein at least the transmitting, detecting and determining is performed autonomously by the digitizer. | 01-29-2009 |
| 20080238885 | System and method for multiple object detection on a digitizer system - A digitizer system comprises at least one object incorporating an electronic tag configured for radiating at least one modulated signal and at least one second signal; a digitizer sensor configured for detecting the at least one second signal while the object is positioned on or over the digitizer sensor; and circuitry configured for identifying the object based on modulation of the at least one modulated signal and for determining a position of the object on or over the digitizer based on the detected second signal on a portion of the digitizer sensor. | 10-02-2008 |
| 20080238881 | Shield for a digitizer sensor - A digitizer comprises a sensor configured for detecting an object implemented for user input, the sensor including at least one transparent layer, circuitry connected to the sensor configured for processing signals detected on at least a portion of the sensor and a conductive shield configured for providing shielding over an area of the sensor that is not intended for user input. | 10-02-2008 |
| 20080218494 | Touch detection for a digitizer - A detector for detecting touches of at least one object on a transparent sensor located over a display screen, the detector comprising. a display screen; a patterned arrangement of conductors extending into said sensor situated over said display screen; and detection circuitry adapted to detect capacitive coupling of said at least one object with said at least one conductor. | 09-11-2008 |
