Abstract: A control circuit for a sensing electrode array is described. The control circuit for the sensing electrode array includes a down-conversion circuit, an intensity-to-phase frequency converter, and a phase frequency analyzing unit. The down-conversion circuit down-converts a sensing signal of each sensing line of the sensing electrode array to obtain a corresponding down-converted signal. Each down-converted signal is substantially a direct-current signal. The intensity-to-phase frequency converter generates a corresponding phase frequency signal for each down-converted signal. At least the phase or the frequency of the phase frequency signal is related to the level of the corresponding down-converted signal. The phase frequency analyzing unit obtains signal magnitude of the corresponding sensing lines based on the phase frequency signal.

Abstract: A control circuit for a sensing electrode array is described. The control circuit for the sensing electrode array includes a signal intensity analyzer, an intensity-to-phase frequency converter, and a phase frequency analyzing unit. The signal intensity analyzer obtains an intensity signal corresponding to a sensing signal of each sensing line of the sensing electrode array, wherein each intensity signal is a direct-current signal. The intensity-to-phase frequency converter generates a phase frequency signal based on the intensity signal. At least the phase or the frequency of the phase frequency signal is related to the level of the corresponding intensity signal. The phase frequency analyzing unit obtains a signal magnitude of the corresponding sensing line according to each phase frequency signal. The control circuit for the sensing electrode array enhances the operating speed and the signal-to-noise ratio of the touch control sensing system without increasing the manufacturing cost.

Abstract: A touch sensing circuit includes an alternative current (AC) source, a voltage division circuit, and a processing circuit. The voltage division circuit receives an AC signal outputted from the AC source and includes a first branch and a second branch on a touch sensing glass, wherein the first and second branches are adjacent to each other. The processing circuit is connected to the voltage division circuit for determining position of a touch point according to the voltages of the first branch and the second branch. In a preferred embodiment, the first branch comprises a first capacitor and a first voltage division resistor connected to the first capacitor, and the second branch comprises a second capacitor and a second voltage division resistor connected to the second capacitor.

Abstract: An open circuit detecting system configured to connect to an object circuit for getting an electrical signal through a virtual ground induced by characteristic impedance of a parasitic capacitor and determining whether the object circuit is open according to the electrical signal.

Abstract: A capacitive touch panel comprises: a substrate and a touch sensor. The touch sensor is disposed on the substrate and includes a plurality of conductive elements, an input bus, and an output bus. The conductive elements are arranged to form a sensing matrix on same surface of the substrate. The input bus is electrically connected to one end of a first axis of the sensing matrix. The output bus is electrically connected to one end of a second axis of the sensing matrix. By this means, the present disclosure can achieve the purpose of simplifying the architecture of the capacitive touch panel.

Abstract: A dustproof and waterproof switch includes a casing, a contact pole device, an axial joint member, a catch member and a covering member. The characteristic is in that the axial joint member is placed in the casing and lap joined to support members the axial joint member having a fitting hole at the center thereof and having an axial plate at the front and the rear sides thereof respectively; the catch member is formed a frame and placed in a mold to allow the concave downward plane at the top thereof joined to the upper arc recess of the covering member, which is made by way of injection molding, and the catch member is attached between the two axial plates with the bottom thereof having a central hollow post fitting with an extendable stir rod and the stir rod piercing the rod plate and the lower end of the stir rod contacting with the arc contact pole; and the covering member at the bottom edge thereof extends an inner connecting rim for fitting with the casing and covering the upper part of the casing.

Abstract: A dust and moisture free switch includes a hollow casing, a contact pole device, a control plate and an isolation part. The contact pole device is inserted to the bottom of the casing with a stationary pole and a support pole being inserted into and locating at a respective pole hole and an arc pole being attached to the top of the support pole such that the arc pole can swing leftward and rightward. The control plate is joined to the upper portion of the casing and has the bottom thereof being arranged with a central hollow post to fit with an extensible stir lever, which has a bottom thereof contacting with the arc pole. The isolation part is made of soft high molecular plastic material and passed through by and fitting with the stir lever so as to be located at and closely joined to the inner wall of the casing to perform a function of blocking dust or moisture to enter the bottom of the casing.

Abstract: A dust and moisture free switch includes a hollow casing, a contact pole device, a control plate and an isolation part. The contact pole device is inserted to the bottom of the casing with a stationary pole and a support pole being inserted into and locating at a respective pole hole and an arc pole being attached to the top of the support pole such that the arc pole can swing leftward and rightward. The control plate is joined to the upper portion of the casing and has the bottom thereof being arranged with a central hollow post to fit with an extensible stir lever, which has a bottom thereof contacting with the arc pole. The isolation part is made of soft high molecular plastic material and passed through by and fitting with the stir lever so as to be located at and closely joined to the inner wall of the casing to perform a function of blocking dust or moisture to enter the bottom of the casing.