Abstract: A touch sensitive processing method for reducing interference from pixel refresh, comprising: sensing horizontal electrodes of a touch screen three times for gathering three sensing values, the sensing steps are separated by a time period; summing the three sensing values as sums; according to the sums, determining an external conductive object is disposed near a N-th horizontal electrode among the horizontal electrode of the touch screen; emitting driving signal from the N-th horizontal electrode and sensing the driving signal via vertical electrodes of the touch screen for gathering an N-th sensing array; and calculating a position of a touch event according to the N-th sensing array and the position of the N-th horizontal electrode.

Abstract: A method for detecting electrical signals is provided.

Abstract: A transmitter processing method comprising: when in an all channel mode, do following steps: receiving beacon signals, transmitted by a touch panel, in multiple channels; and switching from the all channel mode to a single channel mode if the beacon signals are received in one channel of the multiple channels; and when in the single channel mode, do following steps: transmitting electrical signals in a time slot after the beacon signals are received; and receiving the beacon signals only in the one channel of the multiple channels.

Abstract: A touch sensitive method for reducing interference from pixel refreshing: comprising: performing three detections, each separated by a time interval, via multiple sensing electrodes of a touch screen to generate multiple first detection values, second detection values and third detection values, respectively; adding detection values with respect to the multiple sensing electrodes up as multiple sums of detection values; determining that an external conductive object is approximating or touching the touch screen nearby a N-th sensing electrode according to the multiple sums; and determining a position of the object locates according to one of the first detection values, the second detection values and the third detection values.

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: A method for setting erasing area is provided. The method comprising: receiving an attitude of an electronic board eraser relative to a touch screen and touch pressure values; determining whether at least one corner of an wiping surface of the electronic board eraser contacts the touch screen; and deciding properties of an erasing area if it is determined that at least one corner of the wiping surface of the electronic board eraser contacts the touch screen.

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: When a touch sensor is approached or touched by a capacitive pen in 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. The capacitive pen can be made of bonded conductive fibers.

Abstract: A touch control human-machine interface device and an operation method thereof are disclosed. In the touch control human-machine interface device. The touch recognition device includes an insulative carrier, an upper electrode disposed on an upper surface of the insulative carrier, lower electrodes disposed on a lower surface of the insulative carrier, and conductive lines electrically connecting the upper electrode to the lower electrodes. When the user presses the upper electrode, the touch recognition device is pressed down to move the lower electrodes to contact an upper surface of a capacitive touch panel, a control unit can detect the capacitive touch panel to determine positions of the lower electrodes to define a XY coordinate system, so as to determine a coordinate of other lower electrode at the XY coordinate system. As a result, an identity of the user operating the touch recognition device can be defined by the determined coordinate.

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 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: A touch sensitive processing apparatus is used to detect at least one object approximating or touching a touch screen. The touch screen includes: multiple neighboring first electrodes and multiple neighboring second electrodes which are parallel to a first axis; and multiple neighboring third electrodes and multiple neighboring fourth electrodes which are parallel to a second axis. Each of the first electrodes intersects with the third electrodes to form multiple intersection areas, each of the second electrodes intersects with the fourth electrodes to form multiple intersection areas.

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 touch sensitive keyboard system, provided by the present invention, includes a touch sensitive input device and a touch sensitive processing apparatus coupled to the touch sensitive input device. The touch sensitive input device includes parallel first electrodes, parallel second electrodes, parallel third electrodes and an elastic dielectric layer between the second and third electrodes. There is at least one approximation intersection area of one of the first electrodes and one of the second electrodes and at least one pressing intersection area of one of the second electrodes and one of the third electrodes inside each key area. In case the touch sensitive processing apparatus determines there is an external object influencing signals of the approximation and pressing intersection areas of one of the key areas, a key sign is transmitted to a host.

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: A touch panel includes: multiple first electrodes parallel to a first axis; multiple second electrodes parallel to a second axis; and multiple third electrodes parallel to the second axis. Each of the first electrodes is arranged to be spanned on the touch panel and intersects with the multiple second electrodes or the multiple third electrodes to form multiple intersection areas.

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: 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.