Abstract: 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.

Abstract: A method and system for recognition of an intended user interaction with a digitizer is provided, the method comprising characterizing an intended user interaction input signals of a specific user, storing at least one characterization criterion from the characterization, and determining if a subsequently detected input signals meets the at least one characterization criterion.

Abstract: A method for noise reduction in a digitizer includes determining a location of a stylus with a known frequency of emission over a first sampling period, sampling output from a plurality of detecting elements over a second sampling period, identifying detecting elements with sampled output in the second sampling period above a defined threshold in a selected frequency, the selected frequency being close to but different than the known frequency of the stylus, selecting as a candidate carrier of mere noise a detecting element from the detecting elements identified that is spaced away from the determined location of the stylus, and reducing values of output sampled over the second sampling period from at least one other detecting element, in accordance with the output sampled over the second sampling period from the detecting element selected as the candidate carrier of mere noise.

Abstract: 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.

Abstract: A method for use in controlling images on a screen, including identifying each object from some objects with respect to a sensing surface, and assigning a dedicated image to that object for presentation on a screen, sensing behavior of that object by monitoring its position contacting the sensing surface and generating position data indicative thereof, and selectively identifying a break in contact between the contacting object and the sensing surface and generating data indicative thereof, processing the position data and generating transformation data between the coordinate system of the sensing surface and a virtual coordinate system of the screen, and selectively generating and storing data indicative of a last position in the virtual coordinate system of an image corresponding to a contacting object, when the contacting object breaks contact with the sensing surface; and using the transformation data for controlling the image associated with each contacting object on the screen.

Abstract: An input device includes a touch sensitive sensor operative to detect finger touch, a controller for controlling the touch sensitive sensor, the controller operative to set at least one area of the touch sensitive sensor for sampling output with a single touch sampling method and to set at least one other area of the touch sensitive sensor for sampling output with a multi-touch sampling method, wherein the multi-touch sampling method is other than a single touch sampling method, and a detection unit of the touch sensitive sensor controllable to apply the single touch sampling method over the at least one area of the touch sensitive sensor and to apply the multi-touch sampling method over the at least one other area of same touch sensitive sensor.

Abstract: A method for noise reduction in a digitizer includes determining a location of a stylus with a known frequency of emission over a first sampling period, sampling output from a plurality of detecting elements over a second sampling period, identifying detecting elements with sampled output in the second sampling period above a defined threshold in a selected frequency, the selected frequency being close to but different than the known frequency of the stylus, selecting as a candidate carrier of mere noise a detecting element from the detecting elements identified that is spaced away from the determined location of the stylus, and reducing values of output sampled over the second sampling period from at least one other detecting element, in accordance with the output sampled over the second sampling period from the detecting element selected as the candidate carrier of mere noise.

Abstract: An input device includes a touch sensitive sensor operative to detect finger touch, a controller for controlling the touch sensitive sensor, the controller operative to set at least one area of the touch sensitive sensor for sampling output with a single touch sampling method and to set at least one other area of the touch sensitive sensor for sampling output with a multi-touch sampling method, wherein the multi-touch sampling method is other than a single touch sampling method, and a detection unit of the touch sensitive sensor controllable to apply the single touch sampling method over the at least one area of the touch sensitive sensor and to apply the multi-touch sampling method over the at least one other area of same touch sensitive sensor.

Abstract: An input device comprises a touch sensitive sensor operative to sense finger touch, a detection unit controllable to apply a single touch detection method over at least one area of the touch sensitive sensor and a multi-touch detection method over at least one other area of same touch sensitive sensor, and a controller operative to set the areas of single touch and multi-touch detection.

Abstract: A monitoring unit is presented for use in monitoring a behavior of at least a part of a physical object. The monitoring unit comprises: a data input module configured for receiving measured data indicative of a behavior of at least a part of the physical object in a certain coordinate system associated with a predetermined sensing surface; and a digital signal processor configured and operable to be responsive to said measured data for transforming the measured data into an approximate representation of said at least portion of the physical object into a virtual coordinate system such that the transformation maintains a positional relationship between virtual points and corresponding portions within said at least part of the physical object. This technique enables further formatting of said approximate representation into a predetermined data input format of a certain electronic device.

Abstract: A method for verifying a fingertip touch input to a digitizer, the method comprises detecting a pattern of signals obtained from conductive lines of a digitizer sensor, comparing the pattern to a pre-determined fingertip characteristic, and recognizing a fingertip touch input based on the comparison.

Abstract: A digitizer that includes plurality of detecting elements for detecting an electromagnetic signal.

Abstract: A method for noise reduction in a digitizer, the digitizer comprising a plurality of detecting elements for detecting an electromagnetic signal at one of a number of predetermined frequencies: the method comprising: sampling at least two of said detecting elements substantially simultaneously to obtain outputs therefrom, and reducing the output on one of said two elements in accordance with the output on the other of said elements.

Abstract: A method for detecting an object on a sensor sensitive to capacitive coupling comprises simultaneously transmitting signals on at least two electrodes of the sensor, wherein at least one of the signals transmitted on each of the at least two electrodes has a frequency that is different from a frequency of at least one other signal transmitted on another electrode of the at least two electrodes, sampling a signal on at least one other electrode crossing the at least two electrodes, wherein the signal is responsive to capacitive coupling formed between the at least two electrodes and the at least one other crossing electrode, and detecting at least one object from the sampled signals.

Abstract: A digitizer apparatus for digitizing user interactions, for example detecting locations of physical objects, comprises: sensing elements, spread across a sensing area, configured for sensing the user interactions, say involving a stylus or like object, and a controller, associated with the sensing elements, configured to dynamically select a tracking window for the interaction, the tracking window comprising a subset of the sensing elements which are activated for sensing the object. The window is selected to center on the interaction based on e.g. last known location data, and thereby save processing resources by sampling only the minimum number of sensing elements necessary at any time.

Abstract: 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.

Abstract: An input device comprises a touch sensitive sensor operative to sense finger touch, a detection unit controllable to apply a single touch detection method over at least one area of the touch sensitive sensor and a multi-touch detection method over at least one other area of same touch sensitive sensor, and a controller operative to set the areas of single touch and multi-touch detection.

Abstract: 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.

Abstract: 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.

Abstract: 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.