Abstract: The present invention provides a touch sensitive processing apparatus for receiving electrical signals carrying pressure information transmitted from a first stylus, comprising: a sensing circuit, configured for receiving the electrical signals via electrodes of a touch panel; and a processor, coupled to the sensing circuit, configured for: despreading a first preamble code of the received electrical signals in accordance with a pseudo-random number (PN) code in a first time period; despreading a second preamble code of the received electrical signals in accordance with the PN code in a second time period; and calculating the pressure information according to a first signal strength ratio of a first part of the received electrical signal and a second part of the received electrical signal, wherein the first part comprises the first preamble code and the second part comprises the second preamble code.

Abstract: The present invention provides a stylus for transmitting electrical signals carrying pressure information, comprising: a first component with variable impedance reflecting a pressure, wherein the first component is configured for receiving first signals encoded by a pseudo-random number (PN) code in a first time period; a second component with fixed impedance, wherein the second component is configured for receiving second signals encoded by the PN code in a second time period; and a conductive tip section configured for: receiving the first signals from the first component in the first time period; receiving the second signals from the second component in the second time period; transmitting electrical signals which is composed of the first signals in the first time period; and transmitting electrical signals which is composed of the second signals in the second time period.

Abstract: The present application provides a touch sensitive information transmission method, comprising: correcting a gradient phenomenon of at least one line piece of a first electrode to filter noises; transmitting the sensing information of the at least one line piece, wherein the at least one line piece includes a plurality of signal values accumulated from a plurality of difference values with the noises, the plurality of signal values has the gradient phenomenon with regard to the accumulated noises; and detecting the sensing information of a second electrode while the transmitting step is being executed simultaneously.

Abstract: A touch sensitive processing method comprising: generating sensing information sensed by first electrodes and second electrodes simultaneously as a first and a second set, respectively; according to one or more first touch line pieces corresponding to one or more external objects in the first set, transmitting driving signals via one or more of the first electrodes corresponding to one or more first touch line pieces, and sensing the driving signals via the multiple second electrodes to form one-dimensional sensing information; reserving a part of the one-dimensional sensing information which corresponds to at least one second touch line piece of one or more external objects in the second set to be at least one line piece; composing at least one line piece group according to the line piece; calculating one position of the external object according to the line piece group.

Abstract: When a touch sensor is approached or touched by an object having a small area, the corresponding approach or touch signal might be slightly less than the threshold originally used for normal detection. By comparing the sum of the corresponding approach or touch signal and some adjacent signals with the threshold, the approach or touch of a small-area object that otherwise would not be detected by the original method can be determined.

Abstract: A touch sensitive processing method, comprising: selecting a detection area including N first electrodes; repeating following steps N times: designating N?1 of the first electrodes among the N first electrodes as a i-th combination, where i is a positive integer ranged from 1 to N; simultaneously applying driving signals to the first electrodes designated as the i-th combination in a first time period; and retrieving i-th period one-dimension sensing information based on sensed induced driving signals of the second electrodes; adding all of the i-th period one-dimension sensing information to generate one all-period one-dimension sensing information; and calculating a two-dimension sensing information according to the all-period one-dimension sensing information and all of the i-th period one-dimension sensing information.

Abstract: The present invention provides a touch sensitive processing apparatus configured for: according to one or more first touch line pieces corresponding to one or more external objects in a first set, transmitting driving signals via one or more first electrodes corresponding to the one or more first touch line pieces and sensing the driving signals via multiple second electrodes to form at least a one-dimensional sensing information; composing a two-dimensional sensing information according to the at least a one-dimensional sensing information; preserving sensing information which is corresponding to one or more second touch line pieces in the two-dimensional sensing information, wherein the one or more second touch line pieces is a part of a second set which is corresponding to the one or more external objects; calculating one or more positions of the one or more external objects according to the two-dimensional sensing information.

Abstract: The present application provides a touch sensitive processing method for a tethered stylus. The method comprises selectively driving two of three circuit components of the stylus in three shorter time periods, sensing induced signals from electrodes of a touch panel, and calculating coordinates of a tip electrode and a surrounding electrode of the stylus accordingly.

Abstract: The present invention provides a method for controlling the transmitter, comprising: transmitting a first electric signal with a first signal strength if a force sensor of the transmitter does not sense any force; and transmitting a second electric signal with a second signal strength if the force sensor does sense force, wherein the first signal strength is larger than the second signal strength.

Abstract: A stylus includes a pen body, an internal circuit, at least one modular function device, and a pen head disposed at a lower part of the pen body and including a first conductive part. The modular function device includes a circuit module disposed inside a main body thereof and electrically connected to connection interfaces disposed on upper and lower sides of the main body, respectively. The connection interface of the modular function device can be mounted on the adapted connection interface of the pen body, and two adjacent modular function devices can be concatenated with each other through the adapted connection interfaces thereof. As a result, according to the user's requirement, the stylus can be extended with various modular function devices, and the modular function device mounted on the stylus can also be replaced.

Abstract: The present invention provides a transmitter comprising a first component, a second component, a tip section for receiving a pressure, a control unit, and a communication unit. The first component is configured for receiving output of a signal source. A first impedance of the first component changes according to the pressure. The second component is configured for receiving output of the signal source. The second component has a second impedance. The control unit if configured for calculating a first signal value and a second signal value from the first component and the second component, respectively, and calculating a pressure value according to a ratio of the first signal value and the second signal value. The communication unit is configured for transmitting the pressure value.

Abstract: An electronic erase device includes at least three electromagnetic signal emission elements, and after a touch panel detects a pattern formed by at least three electromagnetic signal emission elements, the touch panel can erase handwriting upon a user-defined erase area. As a result, it is excessively-high convenient to write and erase on touch panel by using stylus and electronic erase device alternatively in meeting, teaching and working application.

Abstract: The present application provides a touch control apparatus for detecting a tilt angle of a stylus emitting electrical signals. A processing module of the touch control apparatus is configured for instructing a signal strength detecting circuit to calculate magnitudes of signal strengths of electrical signals in two time periods to determine a modulation sequence. The modulation sequence includes a plurality of modulations, in each of the time periods one type of the plurality of modulations is used. And the processing module is further configured for determining the tilt angle of the stylus based on the electrical signals of the two time periods.

Abstract: A touch sensitive processing method applicable to a touch sensitive processing device connecting with a touch sensitive screen, wherein the touch sensitive screen includes multiple first electrodes being parallel to each other and multiple second electrodes being parallel to each other, wherein both the first and the second electrodes form multiple intersectional points, the touch sensitive processing device comprises a driving circuit configured to connect with at least one of the first electrodes of the touch sensitive screen; a sensing circuit configured to connect with the second electrodes; and a processor configured to connect with the driving circuit and the sensing circuit and to perform the touch sensitive processing method, wherein the touch sensitive processing method comprising: commanding the driving circuit to continuously drive the at least one of the first electrodes three times; and commanding the sensing circuit to detect changes in capacitance by the second electrodes for detecting an objec

Abstract: The present invention provides a touch sensitive processing apparatus for receiving electrical signals carrying pressure information transmitted from a first stylus, comprising: a sensing circuit, configured for receiving the electrical signals via electrodes of a touch panel; and a processor, coupled to the sensing circuit, configured for: despreading a first preamble code of the received electrical signals in accordance with a first pseudo-random number (PN) code; despreading a second preamble code of the received electrical signals in accordance with a second PN code; and calculating the pressure information according to a first signal strength ratio of a first part of the received electrical signal and a second part of the received electrical signal, wherein the first part comprises the first preamble code and the second part comprises the second preamble code, wherein the first PN code is orthogonal to the second PN code.

Abstract: The present invention provides a touch sensitive processing apparatus for receiving electrical signals carrying pressure information transmitted from a first stylus, comprising: a sensing circuit, configured for receiving the electrical signals via electrodes of a touch panel; and a processor, coupled to the sensing circuit, configured for: despreading a first preamble code of the received electrical signals in accordance with a pseudo-random number (PN) code in a first time period; despreading a second preamble code of the received electrical signals in accordance with the PN code in a second time period; and calculating the pressure information according to a first signal strength ratio of a first part of the received electrical signal and a second part of the received electrical signal, wherein the first part comprises the first preamble code and the second part comprises the second preamble code.

Abstract: The present invention provides a stylus for transmitting electrical signals carrying pressure information, comprising: a first component with variable impedance reflecting a pressure, wherein the first component is configured for receiving first signals encoded by a first pseudo-random number (PN) code; a second component with fixed impedance, wherein the second component is configured for receiving second signals encoded by a second PN code; and a conductive tip section configured for: receiving, simultaneously, the first signals from the first component and the second signals from the second component; and transmitting electrical signals which is composed of the first signals and the second signals, wherein the first PN code is orthogonal to the second PN code.

Abstract: The present invention provides a stylus for transmitting electrical signals carrying pressure information, comprising: a first component with variable impedance reflecting a pressure, wherein the first component is configured for receiving first signals encoded by a pseudo-random number (PN) code in a first time period; a second component with fixed impedance, wherein the second component is configured for receiving second signals encoded by the PN code in a second time period; and a conductive tip section configured for: receiving the first signals from the first component in the first time period; receiving the second signals from the second component in the second time period; transmitting electrical signals which is composed of the first signals in the first time period; and transmitting electrical signals which is composed of the second signals in the second time period.

Abstract: A touch sensitive processing apparatus is provided for detecting whether a touch panel is mostly covered by a conductive liquid or object. The apparatus includes a driving circuit for providing a driving signal to one of multiple parallel electrodes of the touch panel; a sensing circuit for sensing multiple values by the electrodes with respect to the driving signal; and a processor. The processor is configured for commanding the driving circuit to provide the driving signal and receiving the multiple sensing values from the sensing circuit; and determining that the touch panel is mostly covered by a conductive liquid or object according to the sensing values.

Abstract: The present application provides a touch sensitive information transmission method, comprising: correcting a gradient phenomenon of at least one line piece of a first electrode to filter noises; transmitting the sensing information of the at least one line piece, wherein the at least one line piece includes a plurality of signal values accumulated from a plurality of difference values with the noises, the plurality of signal values has the gradient phenomenon with regard to the accumulated noises; and detecting the sensing information of a second electrode while the transmitting step is being executed simultaneously.